CN109347301B - A self-powered method and device - Google Patents

Abstract

The invention relates to the technical field of self-power generation, and provides a self-power supply method and a self-power supply device. The intermittent electric energy generated by the power generation device under at least two external force actions is stored in the energy storage device after being rectified by the rectifying device, wherein one part of the electric energy in the energy storage device flows into the processing device and is used for maintaining the processing device to work in a mode 1; one end of the detection device is connected with the power generation device or the energy storage device, and the other end of the detection device is connected with the control port of the processing device and used for providing a detection signal for the processing device; and after the detection result of the detection device meets the preset detection logic, triggering the processing device to switch to the working mode 2. The invention improves the power utilization efficiency and the working efficiency under the special scene of self-power generation application, and solves the problem that a certain working mode fails under the normal starting of the processor in the prior art.

Description

A self-powered method and device

technical field

The present invention relates to the technical field of self-power generation, in particular to a self-power supply method and device.

Background technique

The power generation device, especially the kinetic energy power generation device, is a device that converts the mechanical energy of the action into electrical energy. The electrical energy generated by such a power generation device is used to drive the processing device to realize the function. The system itself does not need other energy input, and the power generation device is the only electrical energy in the system. source.

At present, most of these power generation devices are of the magnetoelectric type, so there is a mutual restriction between the volume and the electric energy. The electric energy generated by a single action of a small power generation device is generally relatively small. If it is not enough to complete the predetermined task, it is necessary to combine the power of multiple actions, and at the same time, convert the intermittent power for multiple times into continuous power output, so that the power supply of the system will not be interrupted when the system is performing related tasks. There is therefore a need for control and utilization of multiple intermittent electrical energy inputs.

In view of this, overcoming the defects of the prior art is an urgent problem to be solved in the technical field.

SUMMARY OF THE INVENTION

The technical problem to be solved by the embodiments of the present invention is that the control mode of self-power generation in the prior art is single, and the differentiated power supply possibility of each chip device combination in each scenario is not fully utilized. Under the special power supply system of self-power generation, there is a lack of an effective way to overcome the problems of work stability and how to improve work performance in some self-power generation scenarios in the prior art.

The further technical problem to be solved by the embodiments of the present invention is how to conduct an in-depth analysis of the working mode in the prior art, and reduce the unsatisfactory requirements that may be caused by the non-switching mode in the prior art through the preset working mode switching mode. The transmission of the signal is a waste of electric energy and reduces the communication efficiency.

The embodiment of the present invention adopts the following technical solutions:

In a first aspect, the present invention provides a self-power supply device, comprising a power generation device, a rectifier device, an energy storage device, a detection device and a processing device, wherein the power generation device, the rectifier device, the energy storage device and the processing device are electrically connected in sequence, specifically of:

The intermittent electric energy generated by the power generation device under at least two external force actions is rectified by the rectifier device and stored in the energy storage device. A part of the electric energy in the energy storage device flows into the processing device to maintain the processing device in mode 1. ;

One end of the detection device is connected to the power generating device, and the other end is connected to the control port of the processing device, which is used to provide a detection signal that can be used by the processing device; wherein, after the detection result of the detection device satisfies the predetermined detection logic, the switching of the processing device is triggered to work mode 2.

Preferably, triggering two external force actions of the intermittent electrical energy specifically includes:

The interval time period between two external force actions of the power generating device satisfies the following condition: when the subsequent external force action is triggered, the potential difference of the output end of the power generating device is less than a preset threshold.

Preferably, the energy consumption of the self-powered device in working mode 1 is lower than that of the self-powered device in working mode 2, wherein the working mode 1 is used to realize the startup function of the self-powered device, and the working mode 2 is used to realize the self-power supply. Device main function.

Preferred include:

When one end of the detection device is connected to the power generation device, the detection logic specifically detects that the power generation device has completed the output of energy for a specified number of times; and/or,

When one end of the detection device is connected to the power generating device, the detection logic specifically switches the working mode of the processing device according to the polarity of the current generated by the power generating device; and/or,

When one end of the detection device is connected to the energy storage device, the detection logic specifically determines the operation mode of the switching processing device according to whether the energy accumulation of the energy storage device reaches a preset switching electric energy value.

Preferably, when the detection logic is specifically detected that the power generating device has completed the output of energy for a specified number of times, the detection device is specifically a unidirectional conduction circuit formed by a diode;

Wherein, the output port of the power generating device has the characteristic of alternating first polarity and second polarity, and the input end of the unidirectional conduction circuit is connected to the first output port and/or the second output port of the power generating device are connected to each other, and are used for gating the first polarity or the second polarity to form a detection signal; so that the control port of the processing device obtains the statistics of the completion times of the detection signal after the corresponding gating.

Preferably, the unidirectional conduction circuit specifically includes:

The diode D5 is used as the input signal rectifier, wherein the anode of the diode D5 is used as the input end of the detection device, and is connected to one or two output ports of the power generating device;

The cathode of the diode D5 is connected to one end of the resistor R2, wherein after the other end of the resistor R2 is connected to one end of the resistor R4, it is connected to the control port of the processing device as the output end of the detection device; the resistor R4 The other end is grounded, and forms a voltage divider unit with the resistor R2;

A capacitor C3 is connected in parallel between the diode D5 and the resistor R2, and the other end of the capacitor C3 is grounded to form a high-frequency filter branch.

Preferably, when the detection logic is specifically to switch the working mode of the processing device according to the polarity of the current generated by the power generating device, the detection device is specifically a positive unidirectional conduction circuit formed by a diode;

Wherein, when the output port of the power generating device corresponds to mode 1 of the processing device, the first output port of the power generating device outputs a negative voltage, and when the output port of the power generating device corresponds to mode 2, the first output port of the power generating device outputs a positive voltage, The input end of the positive unidirectional conduction circuit is connected to the first output port of the power generating device, and is used for blocking the negative voltage and gating the positive voltage.

Preferably, the anode unidirectional conduction circuit formed by the diode is specifically:

The diode D5 is used as the input signal rectifier, wherein the anode of the diode D5 is used as the input end of the detection device and is connected to the first output port of the power generating device; and the first output port of the power generating device corresponds to the mode 1 output negative voltage, so The output port corresponds to the mode 2 output positive voltage;

The cathode of the diode D5 is connected to one end of the resistor R2, wherein after the other end of the resistor R2 is connected to one end of the resistor R4, it is connected to the control port of the processing device as the output end of the detection device; the resistor R4 The other end is grounded, and forms a voltage divider unit with the resistor R2;

A capacitor C3 is connected in parallel between the diode D5 and the resistor R2, and the other end of the capacitor C3 is grounded to form a high-frequency filter branch.

Preferably, when the detection logic specifically switches the working mode of the processing device according to the polarity of the current generated by the power generating device, the detection device includes two sets of acquisition components, wherein the first set of acquisition components specifically includes:

The diode D5 is used as the input signal rectifier, wherein the anode of the diode D5 is used as the first input end of the detection device and is connected to the first output port of the power generating device;

The cathode of the diode D5 is connected to one end of the resistor R2, wherein after the other end of the resistor R2 is connected to one end of the resistor R4, it is connected to the first control port of the processing device as the output end of the detection device; the The other end of the resistor R4 is grounded, and forms a voltage dividing unit with the resistor R2;

The second set of collection components specifically includes:

The diode D4 is used as the input signal rectifier, wherein the anode of the diode D4 is used as the second input end of the detection device, and is connected to the second output port of the power generating device;

The cathode of the diode D4 is connected to one end of the resistor R1, wherein after the other end of the resistor R1 is connected to one end of the resistor R3, it is connected to the second control port of the processing device as the output end of the detection device; the The other end of the resistor R3 is grounded, and forms a voltage dividing unit with the resistor R1.

Preferably, the detection logic is specifically to determine the working mode of the switching processing device according to whether the energy accumulation of the energy storage device reaches a preset switching electric energy value, the detection device is specifically a voltage detector, when the voltage of the energy storage module is When the preset value is not reached, the output of the detection device is turned off; when the voltage of the energy storage module reaches the preset value, the output of the detection device is turned on; the voltage detector includes any one of the following models: model BL8506, Model LY61C.

Preferably, the rectifier device is composed of two groups of rectifier diodes, each group of rectifier diodes includes at least two diodes, wherein the anode of the diode D1 is grounded, the cathode of the diode D1 is connected to the anode of the diode D2, and the cathode of the diode D1 is connected to the ground. It is also connected to an output port of the power generating device as the input end of the group of rectifier diodes, and the negative electrode of the diode D2 is connected to the energy storage device; specifically:

The input end of the first group of rectifier diodes is used as the first input end of the rectifier device and is connected to the first output port of the power generating device, and the input end of the second group of rectifier diodes is used as the second input end of the rectifier device, connected with the second output port of the power generating device;

The output ends of the first group of rectifier diodes and the second group of rectifier diodes are both connected to the energy storage device.

Preferably, the energy storage device includes:

One or more of capacitors, inductors, energy storage chemistries, and energy storage mechanisms.

Preferably, when the energy storage device is a capacitor C1, one end of the capacitor is grounded, the other end of the capacitor is connected to the output end of the rectifier device, and the other end of the capacitor is also connected to the power input of the processing device port is connected.

Preferably, the power generating device is a magnetoelectric pulse power generating device, comprising a soft magnet, a permanent magnet and a coil; or, the power generating device is a piezoelectric ceramic.

Preferably, a sensor device is also included, and the sensor device is directly or indirectly powered by the electric energy generated when the power generating device moves in the first movement direction.

Preferably, the sensor is one or more of a micro switch, a magnetic switch, a dry reed switch, and a tact switch, and the sensor is in a triggered state when the power generating device moves in the first movement direction, and is used to identify the pressing of the key. next action.

Preferably, the sensor is a pressure sensor.

In the second aspect, the present invention also includes a self-power supply method, including a power generating device, a rectifying device, an energy storage device, a detection device and a processing device, wherein the power generating device, the rectifying device, the energy storage device and the processing device are electrically connected in sequence, specifically of:

One end of the detection device is connected to the power generation device and/or the energy storage device, and the detection result is transmitted to the processing device;

The processing device verifies the predetermined detection logic; wherein, if the first detection logic is satisfied, the control working mode is switched from mode 1 to mode 2.

Preferred include:

The first detection logic is specifically to detect that the power generating device completes the output of energy for a specified number of times; and/or,

The first detection logic is specifically to switch the working mode of the processing device according to the polarity of the current generated by the power generating device; and/or,

The first detection logic is specifically to determine the working mode of the switching processing device according to whether the energy accumulation of the energy storage device reaches a preset switching power value.

Preferably, the first detection logic is specifically to switch the working mode of the processing device according to the polarity of the current generated by the power generating device, and the detection device is specifically a positive unidirectional conduction circuit formed by a diode, and the method includes:

The power generation device obtains the first external force to act to generate electricity, and the electrode connected to the detection device outputs a negative voltage, then the output port connected to the corresponding detection device and the processing device is at a low level; the processing device enters the default mode 1 after obtaining electricity. working status;

The power generating device obtains the second external force to act to generate electricity, and the electrode connected to the detection device outputs a positive voltage, then the output port connected to the corresponding detection device and the processing device is at a high level; the processing device obtains the high level detection After receiving the signal, switch its working mode from mode 1 to mode 2.

Preferably, when the mode 1 is a basic program running mode, and the mode 2 is a wireless transmission mode, if the first detection logic is satisfied, a trigger instruction is sent to the processing device, so that the processing device switches from mode 1 to mode 2 , including:

After the power generating device receives the first external action, it sends out electricity for the processing device to be in the basic program running mode, and waits for being triggered by the second external action;

After the second action is completed, the corresponding detection device determines that the detection result satisfies the predetermined detection logic, and triggers the processing device to switch the working mode from the basic program running mode to the wireless transmission mode.

Preferably, if the second detection logic is satisfied, a trigger instruction is sent to the processing device, so that the processing device switches from mode 2 to mode 1.

Preferably, the second detection logic includes:

According to whether the energy accumulation of the energy storage device is lower than the preset switching electric energy value, the working mode of the switching processing device is determined, and the working mode 2 is switched to the working mode 1; and/or,

According to the fact that after the latest energy output, the next energy output is not received beyond the preset time threshold, the working mode of the switching processing device is determined, and the working mode 2 is switched to the working mode 1.

Preferably, the method further includes:

The processing device verifies the predetermined detection logic; wherein, if the third detection logic is satisfied, the control working mode is switched from the mode 2 to the mode 3, or the control working mode is switched from the mode 1 to the mode 3.

Compared with the prior art, the beneficial effects of the embodiments of the present invention are: the present invention analyzes the intermittent characteristics, power generation polarity characteristics and/or energy stacking characteristics of the power generation device and external force action driving in the existing self-generation applications, and further It is analyzed that the working mode of the processing device can be divided into different stages, corresponding to various modes of different power generation; by setting the detection device and cooperating with the predetermined detection logic in the processing device, the different working modes under different power requirements are realized. Precise switching. The power consumption efficiency and work efficiency in the special scenario of self-generating application are improved, and the problem of failure in a certain working mode when the processor is normally started in the prior art is overcome.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

1 is a schematic diagram of a self-generating device and the effect of power generation potential provided by an embodiment of the present invention;

2 is a schematic diagram of an energy discharge effect of an energy storage device corresponding to the potential of a self-generating device provided by an embodiment of the present invention;

3 is a schematic structural diagram of a self-powered device provided by an embodiment of the present invention;

4 is a schematic structural diagram of a power generation device provided by an embodiment of the present invention;

5 is a schematic structural diagram of another power generation device provided by an embodiment of the present invention;

6 is a schematic diagram of the potential effect of triggering mode switching according to the number of power generation provided by an embodiment of the present invention;

7 is a schematic diagram of pin polarity and external force action of a power generation device provided by an embodiment of the present invention;

8 is a schematic diagram of the effect of a positive and negative electrode potential provided by an embodiment of the present invention;

9 is a schematic diagram of a working state of a piezoelectric ceramic power generating device provided by an embodiment of the present invention;

10 is a schematic diagram of the potential effect of triggering mode switching according to the magnitude of the total electric energy according to an embodiment of the present invention;

11 is a schematic structural diagram of a self-powered device corresponding to mode 1 provided by an embodiment of the present invention;

12 is a schematic structural diagram of a self-powered device corresponding to Mode 2 provided by an embodiment of the present invention;

13 is a schematic structural diagram of another self-powered device corresponding to Mode 2 provided by an embodiment of the present invention;

14 is a schematic structural diagram of still another detection device corresponding to Mode 2 provided by an embodiment of the present invention;

15 is a schematic structural diagram of a self-powered device corresponding to mode 3 provided by an embodiment of the present invention;

16 is a schematic structural diagram of a rectifier device provided by an embodiment of the present invention;

17 is a schematic flowchart of a self-power supply method according to an embodiment of the present invention;

18 is a schematic flowchart of a self-power supply method for completing mode switching according to the power generation polarity according to an embodiment of the present invention;

19 is a front view of the structure of a self-powered device provided by an embodiment of the present invention;

20 is a schematic diagram of the external structure of a self-generating multi-key wireless switch provided by an embodiment of the present invention;

21 is a schematic diagram of the internal structure of a self-generating multi-key wireless switch provided by an embodiment of the present invention;

FIG. 22 is a schematic diagram of the effect of obtaining electric energy by the processing device side when the solution of the present invention is not adopted according to an embodiment of the present invention;

FIG. 23 is a schematic diagram of the effect of obtaining electric energy by the processing device end when the solution of the present invention is adopted according to an embodiment of the present invention.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

In the description of the present invention, the orientation or positional relationship indicated by the terms "inner", "outer", "longitudinal", "lateral", "upper", "lower", "top", "bottom", etc. are based on the drawings The orientation or positional relationship shown is only for the convenience of describing the present invention rather than requiring the present invention to be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

As shown in Figure 1, the electric potential generated by the action of the power generation device M1 described in the system is shown on the right side of Figure 1. The power generation device operates once to generate a part of energy as shown in B in Figure 1, which is characterized by a short duration. , the peak is high. As shown by A in Figure 1, the energy generated by its action may be positive or negative. Multiple actions (it needs to be emphasized that the action here is an action in a broad sense, which refers to all actions that can make an electrical device generate energy, which can be mechanical or non-mechanical, and can be a forward or reverse movement of the operating part. Wait).

T1 is the time interval between two external force actions. It is precisely because the duration of energy generated by a single action is shorter than the action interval T1, so it is the main content of the present invention to collect multiple energy to complete a high energy-consuming task.

In the prior art, the utilization of a single peak energy is performed by first storing the energy and then releasing it. The energy waveform of the energy storage device, as shown in FIG. 2 , the duration of T3 depends on the condition of the processing device. A system that is unable to complete a given task within the T3 cycle will therefore be interrupted before the next action energy is generated, so that the task cannot be continued. The present invention not only considers the above-mentioned interruption problem, but also further considers that in the prior art, even when the power generation function is insufficient, the preset function, such as the wireless communication action in the communication module, will be forcibly executed. Not only the self-generated power is wasted, but also the effective wireless signal strength cannot be released, so that the peer end cannot effectively receive or identify, resulting in a waste of self-generated power that is extremely scarce.

In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

Embodiment 1:

Embodiment 1 of the present invention provides a self-powered device, as shown in FIG. 3 , including a power generating device, a rectifying device, an energy storage device, a detection device, and a processing device, wherein the power generating device, the rectifying device, the energy storage device, and the processing device Electric connection in turn, specific:

The intermittent electric energy generated by the power generation device under at least two external force actions is rectified by the rectifier device and stored in the energy storage device. A part of the electric energy in the energy storage device flows into the processing device to maintain the processing device in mode 1. ;

One end of the detection device is connected to the power generating device, and the other end is connected to the control port of the processing device, which is used to provide a detection signal that can be used by the processing device; wherein, after the detection result of the detection device satisfies the predetermined detection logic, the switching of the processing device is triggered to work mode 2.

Among them, the energy consumption of the self-powered device in working mode 1 is lower than that of the self-powered device in working mode 2. For example, working mode 1 is used to realize the startup function of the self-powered device and the corresponding basic low power consumption response function, The working mode 2 is used to realize the main function of the self-powered device, and generally refers to the function of high power consumption in the embodiment of the present invention. The working mode 1 and the working mode 2 are also referred to as mode 1 and mode 2 for short in each embodiment of the present invention.

The embodiment of the present invention analyzes the intermittent characteristics, power generation polarity characteristics and/or energy stacking characteristics of the power generation device and external force action drive in the existing self-generation application, and further analyzes that the working mode of the processing device can be divided into different stages , corresponding to various modes of different power generation; by setting the detection device and cooperating with the predetermined detection logic in the processing device, the precise switching of different working modes under different power requirements is realized. The power consumption efficiency and work efficiency in the special scenario of self-generating application are improved, and the problem of failure in a certain working mode when the processor is normally started in the prior art is overcome.

In the embodiment of the present invention, the energy storage device includes: one or more of capacitors, inductors, energy storage chemical materials, and energy storage mechanical devices. For simplicity of description, in the subsequent embodiments of the present invention and the accompanying drawings, the energy storage device is mainly presented in the form of capacitors, but this is not a limitation on the type of energy storage device used in the solution of the present invention.

With reference to the embodiment of the present invention, a description of a target state is given for the two external force actions that trigger the intermittent electrical energy, which specifically includes:

The interval time period between two external force actions of the power generating device satisfies the following condition: when the subsequent external force action is triggered, the potential difference of the output end of the power generating device is less than a preset threshold. Wherein, the set preset threshold is 10%-30%. The potential difference less than the preset threshold is for the purpose of design and implementation. In the embodiment of the present invention, the preferred ideal potential difference is zero, that is, the electric energy generated in the previous power generation process of the power generation device is converted to the power storage device, and the process is carried out. The next round of power generation process. The target state here is to achieve the optimal match between the external force action and the self-generating process. Considering that if the power generation time interval triggered by the external force action is too short, it will cause the power of the previous round of power generation devices to be not effectively released to the power generation. Energy storage device, the next round of external force action is generated; because the external force action attached to the power generation device usually cannot bring about the accumulation of the power generation of the power generation device (there are exceptions, such as the wheel-type power generation device, as shown in the figure 4 (which includes a power generator composed of soft magnets, permanent magnets and coils, and a transmission composed of multiple gears), continuous external force action can increase the speed of the runner, resulting in the effect of accumulating power generation), especially For the paddle-type power generation device, as shown in Figure 5 (which includes a power generator composed of soft magnets, permanent magnets and coils, and a reset device composed of a reset spring), continuous short-interval external force action will only increase the corresponding power generation device. The time for continuous power generation, for the power storage process of the power storage device, the cost performance is not as high as that of the above-mentioned target state of the embodiment of the present invention. Therefore, the target state proposed above is applicable to, for example, a paddle, dome-type power generating device.

It should be emphasized that the solution proposed in Embodiment 1 of the present invention applies to the above-mentioned paddle-type and shrapnel-type power generators (also referred to as reset-type power generators in the embodiments of the present invention), and the above-mentioned runner-type power generators are applicable.

Based on the at least two connection modes of the detection device described in Embodiment 1 of the present invention, and the detection logic concept introduced in the process of describing the solution, here, at least three modes are provided for the connection between the above connection mode and detection logic. The implementation method is explained in detail, including:

method one,

When one end of the detection device is connected to the power generation device, the detection logic specifically detects that the power generation device has completed the output of energy for a specified number of times. This method is suitable for scenarios where the electric energy generated by the power generating device can be calibrated under a single external force action.

As shown in FIG. 6 , it is the waveform of multiple actions of the power generating device, and the lower part is the energy waveform of the energy storage device after the control method of the present invention is adopted. In the figure, L1 represents the energy change trajectory of the energy storage device when the power generation device generates electricity under the action of external force. At this time, the energy flows to the processing device, the processing device starts to work, completes the necessary preparations, and starts to monitor the detection results of the detection device. , at this time, the processing device works in working mode 1 (as shown in the L2 section in Figure 6), and the energy of the energy storage device drops very slowly in the L2 stage. When the next action comes, the energy of the energy storage device further increases, and the processing device At this time, it is still in working mode 1, waiting for the trigger signal of the detection device, until the Nth external force action comes (PP1 point). First, the energy continues to accumulate in the storage device. Since the detection device monitors this action, the processing device is triggered, and the processing device After it is determined that the specified number of trigger signals has been obtained, enter the working mode 2 to perform high-energy-consuming tasks, and enter the L3 stage shortly after PP1. At this time, the energy in the energy storage device drops faster than that in mode 1. At this time The accumulated energy of the energy storage device is already sufficient to support the processing device to complete the intended task.

An application scenario of the first method can be used to realize the self-generating electronic keyboard, that is, the power generating device is one or more self-generating generators corresponding to the keys of the piano. Send the key information of playing the piano to the remote player. At this time, it can be set to press the Do key N times continuously, which can satisfy the initial stable signal connection with the source player. It can be switched to the playing mode (ie mode 2), and the user's continuous playing process is used to maintain the power required for the continuous playing mode after the initial state.

Another application scenario of the first method may be a self-generating wireless pedometer. The working mode of the self-generating wireless pedometer is to complete a signal transmission every time N steps are taken; The first N-1 steps are used to maintain the basic sensor detection and processor running power of the self-generating wireless pedometer. When the Nth step is taken, the processing device in the corresponding self-generating wireless pedometer passes the corresponding detection device. When it is confirmed that the number of steps reaches N (N is a natural number, in actual cases, it is usually set to 2 according to the detection accuracy requirements), then start the wireless transmission function, wirelessly transmit the step counting data to the smart terminal, and clear the corresponding detection device. The number of steps, and this cycle runs to complete the entire working process of the self-generating wireless pedometer.

Method two,

When one end of the detection device is connected to the power generating device, the detection logic specifically switches the working mode of the processing device according to the polarity of the current generated by the power generating device. This method is usually suitable for situations where the response sensitivity of the processing device is relatively high, that is, the reset-type power generator as shown in Figure 7, when it is pressed, it starts mode 1, and when it pops up, it switches to mode 2; Usually, the interval between mode 1 and mode 2 will be between 100ms-500ms.

For a typical power generation device with a reset device (ie, the above-mentioned paddle-type power generation device) as shown in Figure 7, energy is generated by pressing and reset under the action of external force, and the corresponding energy schematic diagram is shown in Figure 8. Pin 1: negative electrode and pin 2: positive electrode in FIG. 7 are specific representations of the first output end and the second output end of the power generating device proposed in the embodiment of the present invention. The method proposed in the embodiment of the present invention can be used to continuously use the energy of pressing and resetting twice to complete a task of high energy consumption. At this time, the two external force actions are respectively constituted by the pressing external force action and the reset external force action from the shrapnel.

The current generated by the action of the generator is alternately positive and negative, and the polarity of the energy generated by pressing and popping up the operating point P is opposite, and the detection device can switch the working mode of the load by detecting the polarity of the pulse.

In another embodiment, the power generating device is a piezoelectric ceramic sheet, as shown in FIG. 9 , which generates pulsed electric energy when it is pressed down and reset, respectively, and the corresponding energy schematic diagram can refer to the effect shown in FIG. 8 .

Taking the self-generating doorbell as an example, when the transmitter is pressed by an external force, the processing device in the transmitter determines that the voltage direction is positive through the detection device, and then enters the mode 1 operation, wherein the mode 1 completes the processing device in the transmitter. When the transmitter bounces up from the pressed state, the processing device in the transmitter determines that the voltage direction is negative through the detection device, and then enters the mode 2 to work. At this time, the mode 2 is completed. The transmission of wireless signals from sender to receiver. It should be added that the positive and negative electrodes of the voltage detection of the above-mentioned pressing and pop-up and detection devices are determined according to the actual circuit, and the above-mentioned corresponding relationship is only a description in an example. This can avoid the problem that the electric energy generated only by the pressing action cannot effectively send wireless signals to the receiver due to the long distance between the transmitter and the receiver, and improves the working stability of the self-generated doorbell without increasing the cost. Sex and scope of work.

Method three,

When one end of the detection device is connected to the energy storage device, the detection logic specifically determines the operation mode of the switching processing device according to whether the energy accumulation of the energy storage device reaches a preset switching electric energy value.

As shown in Figure 10, when the detection device detects and evaluates that the energy of the energy storage device is enough to complete a task, that is, the energy accumulated by the energy storage device is greater than the EP0 energy required to complete the task, a trigger signal will be sent to the processing device. , so that the processing device can switch the working state and enter the L3 stage to complete high-energy-consuming tasks.

The specific examples in the first and second methods above can be applied to this method, such as the above-mentioned wireless pedometer and self-generated doorbell. The difference is that the third method directly detects the energy storage device, compared with the first and second methods. The two detection angles are different. Relatively speaking, the control accuracy of the third method is higher than that of the first and second methods.

Combined with the embodiment of the present invention, for the above-mentioned method 1, the detection logic in FIG. 11 is specifically to detect that the power generation device is within a preset time (the preset time here must at least ensure that the interval time of each number of times cannot exceed the capacity of the energy storage device. The time for the support processing device to maintain mode 1), when the output of energy for a specified number of times is completed, the detection device is specifically a unidirectional conduction circuit composed of diodes;

Wherein, the output port of the power generating device has the characteristic of alternating first polarity and second polarity, and the input end of the unidirectional conduction circuit is connected to the first output port and/or the second output port of the power generating device are connected to each other, and are used for gating the first polarity or the second polarity to form a detection signal; so that the control port of the processing device obtains the statistics of the completion times of the detection signal after the corresponding gating. The above-mentioned one-way conduction circuit is usually suitable for the discrete characteristics of the power generation state and the number of power generation. For the power generation characteristics that show continuous power generation in time, it is usually not applicable to the above method 1 for determining the number of times, but is applicable to the present invention. way three.

Correspondingly, the embodiment of the present invention also provides a specific achievable solution for the above-mentioned unidirectional conduction circuit:

As shown in FIG. 11 , the unidirectional conduction circuit uses a diode D5 as an input signal rectifier, wherein the anode of the diode D5 is used as the input end of the detection device and is connected to one or two output ports of the power generating device;

The cathode of the diode D5 is connected to one end of the resistor R2, wherein after the other end of the resistor R2 is connected to one end of the resistor R4, it is connected to the control port of the processing device as the output end of the detection device; the resistor R4 The other end is grounded, and forms a voltage divider unit with the resistor R2;

A capacitor C3 is connected in parallel between the diode D5 and the resistor R2, and the other end of the capacitor C3 is grounded to form a high-frequency filter branch.

As shown in FIG. 11 , when the energy storage device is a capacitor C1, one end of the capacitor is grounded, the other end of the capacitor is connected to the output end of the rectifier device, and the other end of the capacitor is also connected to the processing device connected to the power input port.

In combination with the embodiment of the present invention, for the above-mentioned second mode, a specific circuit structure design scheme is also provided. As shown in FIG. 12 , in the detection logic, the operation of the processing device is switched according to the polarity of the current generated by the power generating device. In the mode, the detection device includes two sets of collection components, wherein the first set of collection components specifically includes:

The diode D5 is used as the input signal rectifier, wherein the anode of the diode D5 is used as the first input end of the detection device and is connected to the first output port of the power generating device;

The cathode of the diode D5 is connected to one end of the resistor R2, wherein after the other end of the resistor R2 is connected to one end of the resistor R4, it is connected to the first control port of the processing device as the output end of the detection device; the The other end of the resistor R4 is grounded, and forms a voltage dividing unit with the resistor R2;

A capacitor C3 may also be connected in parallel between the diode D5 and the resistor R2, and the other end of the capacitor C3 is grounded to form a high-frequency filter branch.

The second set of collection components specifically includes:

The diode D4 is used as the input signal rectifier, wherein the anode of the diode D4 is used as the second input end of the detection device, and is connected to the second output port of the power generating device;

The cathode of the diode D4 is connected to one end of the resistor R1, wherein after the other end of the resistor R1 is connected to one end of the resistor R3, it is connected to the second control port of the processing device as the output end of the detection device; the The other end of the resistor R3 is grounded, and forms a voltage dividing unit with the resistor R1;

A capacitor C2 may also be connected in parallel between the diode D4 and the resistor R1, and the other end of the capacitor C2 is grounded to form a high-frequency filter branch.

The above structure including two sets of acquisition components is especially suitable for the example of a self-generating doorbell proposed above. When the transmitter is pressed by an external force, the processing device in the transmitter determines that the voltage direction is positive through the detection device, and then enters the system. Mode 1 works. At this time, mode 1 completes the activation of the processing device in the transmitter and the identification of the basic pressing action. When the transmitter bounces up from the pressed state, the processing device in the transmitter determines the voltage direction through the detection device. If the direction is negative, then enter the mode 2 to work, at this time, the mode 2 completes the transmission of the wireless signal between the transmitter and the receiver.

However, based on the technical ideas proposed in the embodiments of the present invention and the detection strategy of the above-mentioned Mode 2, there is also a more concise and effective circuit structure implementation method, as shown in FIG. 13 , the detection device is specifically composed of a diode The formed positive unidirectional conduction circuit; it can be seen from FIG. 13 that the positive unidirectional conduction circuit is similar to the above-mentioned collection component.

Wherein, when the output port of the power generating device corresponds to mode 1 of the processing device, the first output port of the power generating device outputs a negative voltage, and when the output port of the power generating device corresponds to mode 2, the first output port of the power generating device outputs a positive voltage, The input end of the positive unidirectional conduction circuit is connected to the first output port of the power generating device, and is used for blocking the negative voltage and gating the positive voltage. The principle is to select the designated port (described as the first output port in the scheme) among the two output ports of the power generation device, and the corresponding designated port shows a negative voltage when it is pressed and a positive voltage when it is reset, so that it can follow The positive unidirectional conduction circuit realizes that the electric energy generated by the action of the first external force (ie, pressing) does not trigger the detection device to output the detection signal. At this time, the processing device is in the default mode 1 working state after obtaining the electric energy, and the second external force The power generated by the action (ie reset) outputs a detection signal to the processing device via the detection device, so that the processing device can switch the working mode from mode 1 to mode 2. Compared with the above-mentioned implementation scheme that requires two sets of detection components, the scheme shown in Figure 13 has a more concise structure. It cleverly uses the processing device itself to be in mode 1 by default after obtaining power, and switches to mode 2 when receiving a detection signal. The design and the matching of the positive unidirectional conduction circuit ensure the proper triggering of the detection signal, thus realizing the control process of the second mode. Also taking the above self-generated doorbell as an example, the specific implementation content of the scheme shown in Figure 13 is described as follows: When the transmitter of the self-generated doorbell is pressed by external force, the processing device enters mode 1 to work by default (at this time, the processing device No trigger signal is received from the output port of the detection device), wherein, mode 1 can be used to complete the activation of the processing device in the transmitter and the identification of the basic pressing action, when the transmitter bounces from the pressed state (implemented in the present invention) Also described as reset in the example), the processing device in the transmitter obtains the detection signal (such as a high level) through the detection device, and then enters the mode 2 to work. At this time, the mode 2 completes the connection between the transmitter and the receiver. transmission of wireless signals.

It should be emphasized that, in the present invention, for the convenience of description, one of many collocation methods is used for description. For example, the output is a positive voltage when pressed, and the output is a negative voltage when the reset output is selected. In the equivalent scheme of matching the negative unidirectional conduction circuit, it can be designed equivalently without creative work under the inspiration of the technical scheme of the present invention. Therefore, all belong to the same scheme. Due to the protection scope of the present invention, details are not repeated here.

In the embodiment of the present invention, in addition to the above-mentioned structure of the detection circuit formed by using a diode, an alternative implementation scheme is also provided, as shown in FIG. 14 , the detection device is specifically composed of a triode to form a unidirectional conduction circuit, wherein , when the output port of the power generating device corresponds to mode 1 of the processing device, the first output port of the power generating device outputs the first direction voltage, and when the output port of the power generating device corresponds to mode 2, the first output port of the power generating device outputs the second voltage directional voltage, the input end of the unidirectional conduction circuit is connected to the first output port of the power generating device, and when the first directional voltage is introduced into the base of the triode, between the emitter and the base of the triode In the cut-off state; wherein, the collector of the triode is connected to the control port of the processing device. Wherein, when the voltage in the first direction is a negative voltage, and the above condition of “when the voltage in the first direction is introduced into the base of the triode, the emitter and the base of the triode are in a cut-off state”, the corresponding triode Choose NPN tubes. When the voltage in the first direction is a positive voltage, and the above condition of "when the voltage in the first direction is introduced into the base of the triode, the emitter and the base of the triode are in a cut-off state", the corresponding triode selects PNP Tube. Wherein, the emitter of the triode is usually grounded, the collector can be connected to the energy storage device, and the static working voltage of the triode is provided through the energy storage device.

Similarly, CMOS transistors can also be used for implementation, and since it is an equivalent replacement, details are not repeated here.

With reference to the embodiment of the present invention, for the above-mentioned third mode, a specific circuit structure design scheme is also provided. As shown in FIG. 15 , the detection logic is specifically according to whether the energy accumulation of the energy storage device reaches a preset switching electric energy value, When determining the working mode of the switching processing device, the detection device is specifically a voltage detector. When the voltage of the energy storage module does not reach the preset value, the output of the detection device is turned off; when the voltage of the energy storage module reaches the preset value , the output of the detection device is turned on; the voltage detector includes any one of the following models: model BL8506, model LY61C.

In combination with the embodiment of the present invention, a specific implementation of a rectifier device is also provided. As shown in FIG. 16 , the rectifier device is composed of two groups of rectifier diodes, and each group of rectifier diodes includes at least two diodes, wherein the diode D1 The anode of the diode D1 is grounded, the cathode of the diode D1 is connected to the anode of the diode D2, and the cathode of the diode D1 is also connected to an output port of the power generating device as the input end of the group of rectifier diodes, and the cathode of the diode D2 is connected to the energy storage device; specific:

The input end of the first group of rectifier diodes is used as the first input end of the rectifier device and is connected to the first output port of the power generating device, and the input end of the second group of rectifier diodes is used as the second input end of the rectifier device, connected with the second output port of the power generating device;

The output ends of the first group of rectifier diodes and the second group of rectifier diodes are both connected to the energy storage device.

As a specific application scenario of the embodiment of the present invention, the self-powered device based on polarity detection further includes a wireless sending module, the main function of which is to transmit wireless signals. In a specific implementation manner, the wireless sending module may be packaged integrally with the processing device into a single chip, or may be implemented by two independent chips.

In combination with the embodiments of the present invention, based on different application scenarios, in addition to the above-mentioned wireless transmission module, the self-powered device based on polarity detection may also include a sensor device, and the sensor device is moved by the power generating device in the first movement direction. The electricity generated is directly or indirectly powered. The sensor is one or more of a micro switch, a magnetic switch, a dry reed switch, a tact switch, etc. The sensor is in a triggered state when the generator moves in the first movement direction, and is used to identify the pressing of the key. next action. The specific description of the sensor device will be specifically described in Embodiment 4 (using a micro switch as an example) and Embodiment 5 (using a pressure sensor as an example). Among them, in the scene field combined with the sensor application, in particular, the advantages of Mode 1 and Mode 2 proposed in the embodiment of the present invention can be reflected. At this time, the detection of the sensor will be planned and divided into Mode 1 and/or Mode 2. Or mode 2, in which, in particular, being divided into mode 1 can ensure that the sensor signal is effectively acquired and processed by the processing device, and its characteristics will also be specifically developed in the subsequent embodiments 4 and 5.

It should be pointed out that the optional and preferred implementation schemes in Embodiment 1 of the present invention, and the combined implementation manners completed without creative work, all fall within the protection scope of the present invention. The present invention will also be described in detail in specific scenarios by showing one or more combinations of the above specific implementation solutions through subsequent specific embodiments.

Example 2:

In this embodiment of the present invention, after the self-power supply device described in the first embodiment is provided, the second embodiment of the present invention also provides a self-power supply method, and the self-power supply method can be applied to the one described in the first embodiment. method. Therefore, correspondingly, in the application environment of the self-power supply method according to the embodiment of the present invention, as shown in FIG. The energy storage device and the processing device are electrically connected in sequence, as shown in Figure 17, and the method specifically includes:

In step 201, one end of the detection device is connected to the power generation device and/or the energy storage device, and the detection result is transmitted to the processing device.

In step 202, the processing device verifies the predetermined detection logic; wherein, if the first detection logic is satisfied, the control operation mode is switched from mode 1 to mode 2.

The embodiment of the present invention analyzes the intermittent characteristics, power generation polarity characteristics and/or energy stacking characteristics of the power generation device and external force action drive in the existing self-generation application, and further analyzes that the working mode of the processing device can be divided into different stages , corresponding to various modes of different power generation; by setting the detection device and cooperating with the predetermined detection logic in the processing device, the precise switching of different working modes under different power requirements is realized. The power consumption efficiency and work efficiency in the special scenario of self-generating application are improved, and the problem of failure in a certain working mode when the processor is normally started in the prior art is overcome.

Corresponding to the three detection logic modes in Embodiment 1, in the method described in this embodiment of the present invention, there is also a corresponding detection logic implementation method, which specifically includes:

Corresponding to the first manner in Embodiment 1, in this embodiment of the present invention, the first detection logic is specifically detecting that the power generating device has completed the output of energy for a specified number of times.

Corresponding to the second way in the first embodiment, in the embodiment of the present invention, the first detection logic is specifically to switch the working mode of the processing device according to the polarity of the current generated by the power generating device.

Corresponding to the third way in Embodiment 1, in this embodiment of the present invention, the first detection logic specifically determines the working mode of the switching processing device according to whether the energy accumulation of the energy storage device reaches a preset switching power value.

In combination with the embodiment of the present invention, there is a relatively specific application scenario, in which the mode 1 is the basic program running mode, the mode 2 is the wireless transmission mode, and if the first detection logic is satisfied, a trigger instruction is sent to the processing device to switch the processing device from mode 1 to mode 2, specifically including:

After the power generating device receives the first external action, it sends out electricity for the processing device to be in the basic program running mode, and waits for being triggered by the second external action;

After the second action is completed, the corresponding detection device determines that the detection result satisfies the predetermined detection logic, and triggers the processing device to switch the working mode from the basic program running mode to the wireless transmission mode.

The above three ways can be realized by referring to the corresponding circuit design and implementation principle in Embodiment 1, and therefore, they will not be described in detail. In the embodiment of the present invention, the second mode is described in detail as follows. The detection device is specifically composed of a positive unidirectional conduction circuit formed by a diode, as shown in FIG. 18 , and the method includes:

In step 301, the power generating device obtains the first external force to act to generate electricity, and the electrode connected to the detection device outputs a negative voltage, and the output port connected to the corresponding detection device and the processing device is at a low level; after the processing device obtains electric energy Enter the default mode 1 working state.

In step 302, the power generating device obtains the second external force to act to generate electricity, and the electrode connected to the detection device outputs a positive voltage, and the output port connected to the corresponding detection device and the processing device is at a high level; the processing device obtains the After a high-level detection signal, it switches its working mode from mode 1 to mode 2.

Among them, the above-mentioned first external force action and second external force action are only for the convenience of description. They can be expressed as the first two external force actions, or they can be expressed as two external force actions in the process, and no special action is made here. limit.

From the perspective of solution implementation integrity and endurance, there is also a preferred implementation solution in combination with the embodiments of the present invention. Specifically, if the second detection logic is satisfied, a trigger instruction is sent to the processing device, so that the processing device switches from mode 2 for mode 1.

Wherein, the second detection logic includes:

According to whether the energy accumulation of the energy storage device is lower than the preset switching electric energy value, the working mode of the switching processing device is determined, and the working mode 2 is switched to the working mode 1; and/or,

According to the fact that after the latest energy output, the next energy output is not received beyond the preset time threshold, the working mode of the switching processing device is determined, and the working mode 2 is switched to the working mode 1.

There is also a preferred implementation scheme in conjunction with the embodiments of the present invention, specifically:

The processing device verifies the predetermined detection logic; wherein, if the third detection logic is satisfied, the control working mode is switched from the mode 2 to the mode 3, or the control working mode is switched from the mode 1 to the mode 3. The mode 3 here is related to the mode 1 and mode 2 mentioned above. Based on the common inventive concept of the present invention, the mode 3 is proposed based on a more refined power control idea, that is, for a specific processing device. In other words, its own system main function can be divided into three functions corresponding to different power levels, and correspondingly, based on the present invention, the detection device is used to cooperate with the processing device to realize the detection logic triggering and switching the corresponding mode. Based on the above analysis, after mastering the specific work content and status of the processing device, those skilled in the art can use the method disclosed in the present invention to apply it to scenarios with more patterns. Therefore, there is no need for creatively extended technologies. The solutions all fall within the protection scope of the present invention.

Example 3:

As shown in FIG. 19 , it is a schematic structural diagram under a specific usage scenario obtained by combining the apparatus described in Embodiment 1 of the present invention provided by an embodiment of the present invention. Among them, it includes a casing 001, a reset device 002, an action film 003, a rotating shaft 004, a limit device 005, an action end 006 of a power generator, an energy input terminal 007, a detection device 008, a circuit board 009, a rectifier device 101, an energy storage device 102, The voltage stabilization device 103 and the communication device 104 (that is, the performance of the processing device in Embodiment 1 in the specific application scenario of the embodiment of the present invention), their corresponding connection methods are shown in Figure 19, and the action film 003 is used to receive external power (pressure part), and complete the first external power generation process by driving the action end 006 of the power generating device; and, relying on the torsion spring set on the rotating shaft 004, the action piece 003 and the action end 006 of the power generating device are reset, That is, the second external power generation process is completed.

In combination with the structural features of the corresponding device in Embodiment 1 of the present invention and the implementation process of the corresponding method in Embodiment 2 of the present invention, the specific implementation process of the embodiment of the present invention is described as follows:

The external force acts on the action piece 003. Under the action of the force, the action piece 003 rotates along the rotating shaft 004, and at the same time drives the action end 006 of the power generator to act, and generates a potential difference in the first direction at the energy input terminal 007. The rectifying device 101 is rectified and stored in the energy storage device 102, and supplies power to the communication device 104 via the voltage stabilization device 103. At this time, the communication device works in mode 1 and waits for the next energy input. When the external force is withdrawn or the action piece reaches the lowest point, under the reverse action of the reset device, the action end of the power generating device moves in the opposite direction, and an electromotive force in the second direction is generated at the energy input terminal 007, and the energy of the potential difference is rectified. A part of the energy of the device 101 is rectified and stored in the energy storage device 102, and supplies power to the communication device 104 via the voltage stabilization device 103, and the other part is controlled by the detection device 008 to switch to the working mode 2 to complete the communication task.

When the power generating device operates for the first time, electric energy is generated, which is temporarily stored in the energy storage device 102 and output to the communication device 104 after the rectification device 101. At this time, the communication device 104 is in the sleep mode; the detection device 008 and the power generation device and The communication device 104 is associated to detect the second action of the power generation device (for example, corresponding to the first mode in the first embodiment, expressed as the number of power generation times or corresponding to the second mode in the embodiment 1, expressed as the power generation polarity). After the energy generated by the reset action of the power generation device, the working mode of the load is switched, and the active mode is entered to perform the task of transmitting and receiving wireless signals.

The power of the communication device 104 when sending and receiving wireless signals normally is not less than 20mW, and it takes at least 10ms to complete data sending and receiving.

The power of the communication device 104 in the sleep state does not exceed 100uW, and the energy generated by the power generation device in a single action is 250uJ, which is lower than the minimum energy of 300uJ for completing the normal wireless transceiver task, which is not enough to complete the wireless transceiver task. The data is only used as a specific example to facilitate the description of the relationship between the constraints of energy and time, and is not a mandatory limitation of the protection scope of the present invention.

When the time interval between two actions of the generator is less than (250-(300-250))uJ/100uW=2000ms, the energy generated by the first action has not been exhausted, and the energy generated by the second action is superimposed on the energy storage device In 102, the combined sum of the two energies is greater than the minimum energy requirement of the normal wireless transceiving task. When the detection device detects the second energy input, that is, the communication device 104 switches into the active mode, and completes the task of transmitting wireless signals.

A typical application for the self-generating wireless module shown in Figure 19 is a self-generating doorbell. The doorbell transmitter includes the self-generating wireless module, and the module can be equipped with any of the detection devices shown in Figure 11 to Figure 15. Now, the detection circuit shown in Figure 13 is used as an example to illustrate its working process.

The user operates the transmitter, presses the transmitter, and drives the internal power generation device to be pressed;

The power generating device generates electrical energy in the first direction;

At this time, the polarity of the electric energy of the input port of the detection device is negative, the internal capacitor C3 of the detection device has no electric energy to charge, and the output of the detection device is low level;

At the same time, the electric energy generated by the power generation device is rectified to reach the energy storage device;

The processing device, that is, the wireless transmission device, obtains power, and reads the output signal of the detection device at the same time. It is detected that it is low at this time. Therefore, the wireless device performs basic operations such as initialization. After the operation is completed, it does not enter the transmission mode, but waits for detection. the signal of the device;

The user releases the transmitter, and the internal power generation device resets and bounces up under the action of the return spring;

the power generating device generates electrical energy in the second direction;

At this time, the electric energy polarity of the input port of the detection device is positive, the internal capacitor C3 of the detection device is charged, and the detection device outputs a high level;

At the same time, the electric energy generated by the power generation device is rectified to reach the energy storage device;

The processing device detects that the output of the detection device is at a high level, and enters the wireless transmission mode. At this time, the power required for wireless transmission comes from the combined power of the first and second operations of the power generating device.

It should be added that the positive and negative electrodes of the voltage detection of the above-mentioned pressing and pop-up and detection devices are determined according to the actual circuit, and the above-mentioned corresponding relationship is only a description in an example. This can avoid the problem that the electric energy generated only by the pressing action cannot effectively send wireless signals to the receiver due to the long distance between the transmitter and the receiver, and improves the working stability of the self-generated doorbell without increasing the cost. Sex and scope of work.

Example 4:

Figures 20 and 21 are another embodiment: the structure of a self-generating multi-key wireless switch. It contains power generation module, return spring, circuit module and micro switch sensor. The circuit module includes: a processing device (including a wireless transmission module), a detection circuit, a rectifier circuit, and an energy storage circuit. The detection circuit is any one of the detection device circuits shown in FIGS. 11 to 15 , and its working process is described below by taking FIG. 13 as an example.

Figure 20 shows the structure of the complete 3-key switch, and Figure 21 shows the structure with the two keys hidden so that the internal structure can be seen. Each key corresponds to two microswitch sensors to detect which key is pressed.

Its working process is:

The user operates the switch and presses the button to drive the internal power generation device to be pressed, and at the same time the corresponding micro switch is pressed;

The power generating device generates electrical energy in the first direction;

At this time, the polarity of the electric energy of the input port of the detection device is negative, the internal capacitor C3 of the detection device has no electric energy to charge, and the output of the detection device is low level;

At the same time, the electric energy generated by the power generation device is rectified to reach the energy storage device;

The processing device, that is, the wireless sending device, obtains power, and at the same time reads the output signal of the detection device, and detects that it is a low level at this time, so the wireless device performs basic operations such as initialization, and reads the micro switch sensor at the same time to identify which button is is pressed. Optionally, the processing device may also save this information to an internal storage device. After the operation of the processing device is completed, it does not enter the transmission mode, but waits for the signal of the detection device;

When the user releases the switch, the internal power generation device resets and bounces up under the action of the return spring, and the micro switch sensor is also disconnected.

the power generating device generates electrical energy in the second direction;

At this time, the electric energy polarity of the input port of the detection device is positive, the internal capacitor C3 of the detection device is charged, and the detection device outputs a high level;

At the same time, the electric energy generated by the power generation device is rectified to reach the energy storage device;

The processing device detects that the output of the detection device is at a high level, and enters the wireless transmission mode. At this time, the power required for wireless transmission comes from the combined power of the first and second operations of the power generating device. The data sent contains the information of the micro switch sensor.

Example 5:

Another application scenario of the polarity detection method and the sensor may be a self-generating wireless pedometer. Compared with the self-generating wireless pedometer introduced in Embodiment 1, the sensor is further integrated into the specific implementation process in this embodiment. In this way, the advantages of the self-power supply method proposed by the present invention are better demonstrated. The working mode of the self-generating wireless pedometer is to complete a signal transmission every time one step is taken; The electric energy generated by one-step pressing of the power generating device is used to maintain the basic sensing detection and processing device operating power of the self-generating wireless pedometer, and the polarity of the voltage generated by pressing the power generating device is captured by the polarity detection device, prompting the processing device to work. In mode 1, that is, the basic sensing detection of the above-mentioned self-generating wireless pedometer, such as the data acquisition of the pressure sensor and the running state of the processing device, when the above-mentioned step is lifted and the reset action of the power-generating device occurs, the corresponding self-generating power is generated. When the processing device in the wireless pedometer confirms that the detection signal satisfies the mode switching through the corresponding polarity detection device, the wireless transmission function is activated, and the step counting data is wirelessly transmitted to the intelligent terminal, and the entire self-generating wireless pedometer is completed in this cycle. work process.

Example 6:

In order to further demonstrate the practicability of the embodiment of the present invention, experimental comparison data is introduced in Example 6 of the present invention for demonstration. details as follows:

As shown in Figure 22, when the solution of the present invention is not adopted, the single energy can only supply the load to work in the active mode for 149 milliseconds, and the maximum energy is only 630mV (68μF).

As shown in FIG. 23 , using the technical solution disclosed in the present invention, the energy generated by multiple actions is combined until the energy reaches 6.5V (68 μF) and then switches to the active mode. During the whole process, the load energy supply was not interrupted, and it continued to work for 5.4 seconds.

Among them, the parameters of the power generation device used in the test are as follows:

60*20mm PZT bimorph piezoelectric ceramics;

Resonance impedance: <90 oHm;

Static capacitance: 115 - 165 nF;

It is worth noting that the information exchange, execution process and other contents between the modules and units in the above-mentioned device and the system are based on the same concept as the processing method embodiments of the present invention. For details, please refer to the descriptions in the method embodiments of the present invention. , and will not be repeated here.

The above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included in the protection of the present invention. within the range.

Claims (17)

1. The utility model provides a from power supply unit, its characterized in that includes power generation facility, fairing, energy memory, detection device and processing apparatus, and wherein, power generation facility, fairing, energy memory and processing apparatus electric link in proper order, and is specific:

intermittent electric energy generated by the power generation device under at least two external force actions is stored in the energy storage device after being rectified by the rectifying device, wherein one part of the electric energy in the energy storage device flows into the processing device and is used for maintaining the processing device to work in a mode 1;

one end of the detection device is connected with the power generation device, and the other end of the detection device is connected with the control port of the processing device and used for providing a detection signal used by the processing device; after the detection result of the detection device meets the preset detection logic, triggering the processing device to switch to the working mode 2;

when one end of the detection device is connected with the power generation device, the detection logic specifically switches the working mode of the processing device according to the polarity of the current generated by the power generation device;

the energy consumption of the self-powered device in the working mode 1 is lower than that of the self-powered device in the working mode 2, wherein the working mode 1 is used for realizing the starting function of the self-powered device, and the working mode 2 is used for realizing the main body function of the self-powered device.

2. Self-powered device according to claim 1, characterized in that the detection logic is in particular a positive unidirectional conduction circuit, in particular constituted by diodes, when the operating mode of the processing means is switched according to the polarity of the current generated by the power generation means;

when the output port of the power generation device corresponds to the mode 1 of the processing device, the first output port of the power generation device outputs negative voltage, when the output port of the power generation device corresponds to the mode 2, the first output port of the power generation device outputs positive voltage, and the input end of the positive one-way conduction circuit is connected with the first output port of the power generation device and used for blocking the negative voltage and gating the positive voltage.

3. The self-powered device according to claim 2, wherein the positive unidirectional conducting circuit formed by the diode is specifically:

the diode D5 is used as an input signal rectifier, wherein the anode of the diode D5 is used as the input end of the detection device and is connected with the first output port of the power generation device; the first output port of the power generation device outputs negative voltage corresponding to mode 1, and the output port outputs positive voltage corresponding to mode 2;

the cathode of the diode D5 is connected with one end of a resistor R2, wherein the other end of the resistor R2 is connected with one end of a resistor R4 and then is used as the output end of the detection device to be connected with the control port of the processing device; the other end of the resistor R4 is grounded and forms a voltage division unit with the resistor R2;

a capacitor C3 is connected in parallel between the diode D5 and the resistor R2, and the other end of the capacitor C3 is grounded to form a high-frequency filtering branch circuit.

4. The self-powered device according to claim 1, wherein, when the detection logic is configured to switch the operating mode of the processing device according to the polarity of the current generated by the power generation device, the detection device comprises two sets of capture assemblies, wherein the first set of capture assemblies specifically comprises:

the diode D5 is used as an input signal rectifier, wherein the anode of the diode D5 is used as a first input end of the detection device and is connected with a first output port of the power generation device;

the cathode of the diode D5 is connected with one end of a resistor R2, wherein the other end of the resistor R2 is connected with one end of a resistor R4 and then is used as the output end of the detection device to be connected with the first control port of the processing device; the other end of the resistor R4 is grounded and forms a voltage division unit with the resistor R2;

the second set of collection components specifically includes:

the diode D4 is used as an input signal rectifier, wherein the anode of the diode D4 is used as a second input end of the detection device and is connected with a second output port of the power generation device;

the cathode of the diode D4 is connected with one end of a resistor R1, wherein the other end of the resistor R1 is connected with one end of a resistor R3 and then is used as the output end of the detection device to be connected with the second control port of the processing device; the other end of the resistor R3 is grounded and forms a voltage division unit with the resistor R1.

5. The self-powered device as claimed in any one of claims 1 to 4, wherein the rectifying means is formed by two sets of rectifying diodes, each set of rectifying diodes comprises at least two diodes, wherein the anode of the diode D1 is grounded, the cathode of the diode D1 is connected with the anode of the diode D2, the cathode of the diode D1 is also connected with an output port of the power generation device as an input terminal of the set of rectifying diodes, and the cathode of the diode D2 is connected with the energy storage device; specifically, the method comprises the following steps:

the input ends of the first group of rectifier diodes are used as the first input ends of the rectifier devices and are connected with the first output port of the power generation device, and the input ends of the second group of rectifier diodes are used as the second input ends of the rectifier devices and are connected with the second output port of the power generation device;

and the output ends of the first group of rectifying diodes and the second group of rectifying diodes are connected with the energy storage device.

6. A self-powered device as claimed in any of claims 1 to 4, wherein the energy storage means comprises:

one or more of a capacitor, an inductor, an energy storage chemical material, and an energy storage mechanism.

7. The self-powered device according to claim 6, wherein when the energy storage device is a capacitor C1, one end of the capacitor is grounded, the other end of the capacitor is connected to the output terminal of the rectifying device, and the other end of the capacitor is further connected to the power input port of the processing device.

8. A self-powered apparatus as claimed in any one of claims 1 to 4, wherein the power generation means is a magneto-electric pulse power generation means comprising a soft magnet, a permanent magnet and a coil; or the power generation device is piezoelectric ceramic.

9. A self-powered device as claimed in any of claims 1 to 4, further comprising sensor means powered directly or indirectly by electrical energy generated by the power generation means when moving in the first direction of movement.

10. The self-powered device according to claim 9, wherein the sensor is one or more of a micro switch, a magnetic switch, a reed switch, and a tact switch, and the sensor is in a trigger state when the power generation device moves in the first movement direction to recognize a pressing action of the key.

11. The self-powered device according to claim 9, wherein the sensor is a pressure sensor.

12. A self-powered method is characterized by comprising a power generation device, a rectifying device, an energy storage device, a detection device and a processing device, wherein the power generation device, the rectifying device, the energy storage device and the processing device are electrically connected in sequence, and specifically:

one end of the detection device is connected with the power generation device, and a detection result is transmitted to the processing device;

the processing device verifies predetermined detection logic; if the first detection logic is met, controlling the working mode to be switched from the mode 1 to the mode 2;

the first detection logic is specifically used for switching the working mode of the processing device according to the polarity of the current generated by the power generation device;

the energy consumption of the self-powered device in the working mode 1 is lower than that of the self-powered device in the working mode 2, wherein the working mode 1 is used for realizing the starting function of the self-powered device, and the working mode 2 is used for realizing the main body function of the self-powered device.

13. Self-powered method according to claim 12, characterized in that said first detection logic is in particular a switching of the operating mode of the processing means according to the polarity of the current generated by the power generation means, said detection means being in particular a positive unidirectional conduction circuit constituted by diodes, the method comprising:

the power generation device obtains a first external force action to generate power, an electrode connected with the detection device outputs negative voltage, and an output port connected with the processing device corresponding to the detection device is at low level; the processing device enters a default mode 1 working state after obtaining electric energy;

the power generation device obtains second external force action to generate power, and an electrode connected with the detection device outputs positive voltage, so that the output port connected with the processing device corresponding to the detection device is at high level; and after obtaining the high-level detection signal, the processing device switches the working mode of the processing device from a mode 1 to a mode 2.

14. The self-powered method according to claim 12, wherein the mode 1 is a basic program operation mode, the mode 2 is a wireless transmission mode, and if the first detection logic is satisfied, the sending a trigger instruction to the processing device to switch the processing device from the mode 1 to the mode 2 comprises:

after the power generation device receives the first external action, generating electric quantity to enable the processing device to be in a basic program running mode, and waiting to be triggered by a second external action;

and after the second action is finished, if the corresponding detection device determines that the detection result meets the preset detection logic, the processing device is triggered to switch the working mode from the basic program running mode to the wireless transmission mode.

15. The self-powered method of claim 12, wherein if the second detection logic is satisfied, sending a trigger instruction to the processing device to switch the processing device from mode 2 to mode 1.

16. The self-powered method of claim 15, wherein the second detection logic comprises:

determining the working mode of the switching processing device according to whether the energy accumulation of the energy storage device is lower than a preset switching electric energy value, and switching from the working mode 2 to the working mode 1; and/or the presence of a gas in the gas,

and determining the working mode of the switching processing device according to the fact that the energy output exceeds the preset time threshold value after the last time of energy output and the next time of energy output is not received, and switching the working mode 2 to the working mode 1.

17. The self-powered method of claim 12, further comprising:

the processing device verifies predetermined detection logic; if the third detection logic is satisfied, the working mode is controlled to be switched from the mode 2 to the mode 3, or the working mode is controlled to be switched from the mode 1 to the mode 3.

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