CN105182425A - Wireless-power type termite detection system - Google Patents

Abstract

The invention discloses a termite detection system with wireless power supply, which includes: a first circuit board and a second circuit board; wherein: the first circuit board is arranged on a termite detection detector, including: a first single-chip microcomputer, a wireless receiving circuit, Wireless power supply circuit and fixed power supply; the second circuit board is set on the termite detection unit, including: the second single chip microcomputer, detection circuit, wireless transmission circuit and wireless power receiving circuit; wireless power supply circuit and wireless power receiving circuit are wirelessly connected, wireless power supply The circuit is used to supply power to the first single chip microcomputer, the wireless receiving circuit and the second circuit board; the wireless receiving circuit is used to receive the signal transmitted by the wireless transmitting circuit. In the termite detection system with wireless power supply of the present invention, the circuit board on the termite detection unit is not energized when it is not detected, and it is powered wirelessly when it needs to be detected, which has a wide application range and a long service life.

Description

A wireless powered termite detection system

technical field

The invention relates to the field of termite control, in particular to a termite detection wireless power supply detection system.

Background technique

Termites are one of the five major pests in the world, especially in tropical and subtropical regions. Termites can eat all plants, and the formic acid secreted in their bodies can also corrode steel bars and denature concrete. Termites have brought a lot of damage to people's daily life, including damage to buildings, dams, crops, books, underground cables, etc.

In addition, the damage caused by termites is concealed. For example, the damage caused by termites to buildings, especially to brick and wood structures and wooden structures, is often hidden inside the structure. Holes often cause the collapse of houses, resulting in property damage and casualties.

For a long time, the method of preventing and controlling termites is drug prevention, applying insecticides in the soil, and the insecticides used will pollute the environment and pose a threat to human health. Therefore, people have proposed non-drug prevention, and designed a termite detection system, which judges whether there are termites through the conduction state of energized metal wires or graphite. The power supply of the existing termite detection system is set in the termite detection system. Once the production is completed, it will be in a power-on state. Because it has a very long embedding time, it consumes a lot of power, and there may be insufficient power, which makes it unusable .

Contents of the invention

The present invention aims at the problems existing in the above-mentioned prior art, and proposes a termite detection system with wireless power supply. Its wireless power supply solves the problem that the existing termite detection system is always powered on, and there may be insufficient power, resulting in unusable problems.

In order to solve the problems of the technologies described above, the present invention is achieved through the following technical solutions:

The present invention provides a termite detection system with wireless power supply, which includes: a first circuit board and a second circuit board; wherein:

The first circuit board is arranged on the termite detection detector, including: a first single-chip microcomputer, a wireless receiving circuit, a wireless power supply circuit and a fixed power supply; the wireless receiving circuit and the wireless power supply circuit are respectively connected to the first single-chip microcomputer, so The fixed power supply is connected to the wireless power supply circuit, and the fixed power supply is also connected to the wireless receiving circuit;

The second circuit board is arranged on the termite detection unit, including: a second single-chip microcomputer, a detection circuit, a wireless transmission circuit and a wireless power receiving circuit; the detection circuit, the wireless transmission circuit and the wireless power receiving circuit are respectively connected to the The second single-chip microcomputer is connected, and the wireless power receiving circuit is also connected with the detection circuit and the wireless transmission circuit;

The wireless power supply circuit is wirelessly connected with the wireless power receiving circuit, and the wireless power supply circuit is used to supply power to the first single-chip microcomputer, the wireless receiving circuit and the second circuit board; the wireless receiving circuit is used for Receive the signal transmitted by the wireless transmitting circuit.

The wireless power supply principle of the present invention is as follows: the direct current output by the fixed power supply is converted into high-frequency alternating current by a set frequency inversion and supplied to the wireless power supply circuit. The energy is coupled by two inductance coils in the wireless power supply circuit and the wireless power receiving circuit, and the wireless power receiving circuit converts it into direct current to supply power to each circuit on the second circuit board.

Preferably, the wireless power supply circuit includes a resonant circuit, and the resonant circuit includes a transmitting coil.

Preferably, the first circuit board further includes an LED indicating circuit, which is connected to the first single-chip microcomputer, and is used to indicate in real time whether there is a wireless signal and the status of the detection circuit.

Preferably, the first circuit board also includes a sound indicating circuit, which is connected to the first single-chip microcomputer; further, the sound indicating circuit is a buzzer. The presence or absence of wireless signals and the status of the detection circuit are indicated by different settings of the sound.

Preferably, the first circuit board further includes a data storage circuit connected to the first single-chip microcomputer.

Preferably, the data storage circuit includes a USB interface, which is used for communicating with a computer and reading the received data to the computer.

Preferably, the wireless power receiving circuit includes a receiving coil, and the receiving coil is wirelessly connected to the transmitting coil. When within a certain distance range, the power of the transmitting coil can be sensed to realize wireless power supply.

Preferably, the wireless power receiving circuit further includes: a rectification circuit, a filter circuit and a voltage stabilizing circuit connected in sequence; The detection circuit and the wireless transmission circuit are powered.

Preferably, the detection circuit includes a magnetic switch, and the magnetic switch is connected to the second single-chip microcomputer through an input detection circuit.

Preferably, the magnetic switch is a dry reed switch, and the closing or opening of the magnetic switch is realized by pulling in or opening the dry reed switch.

Preferably, the number of the reed switch is at least two, at least two of the reed switches are evenly distributed on the termite detection unit, and the bait in the termite detection unit generally includes multiple, when arranged When the bait on one side of the reed switch is not bitten through, there may be a possibility of missed detection. When multiple reed switches are evenly arranged on the detection unit, the detection accuracy is improved and the rate of missed detection is reduced.

Compared with the prior art, the present invention has the following advantages:

(1) The detection unit of the termite detection system with wireless power supply provided by the present invention is in a de-energized state when not detecting. When detecting, the detector will only supply power when it is close, and there will be no insufficient power to work. environment, save power consumption, and have a long service life;

(2) The detection unit is in a power-off state when not detecting, and can be placed in a humid environment without affecting the detection results. The false alarm rate is low and the application range is wide.

Of course, any product implementing the present invention does not necessarily need to achieve all the above-mentioned advantages at the same time.

Description of drawings

Embodiments of the present invention will be further described below in conjunction with accompanying drawings:

Fig. 1 is the schematic diagram of the first circuit board of embodiment 1 of the present invention;

Fig. 2 is the schematic diagram of the second circuit board of embodiment 1 of the present invention;

Fig. 3 is the schematic diagram of the first circuit board of embodiment 2 of the present invention;

Fig. 4 is the schematic diagram of the first circuit board of embodiment 3 of the present invention;

Fig. 5 is the pin diagram of the first single-chip microcomputer of embodiment 3 of the present invention;

6 is a circuit diagram of a wireless power supply circuit and a wireless receiving circuit according to Embodiment 3 of the present invention;

Fig. 7 is the circuit diagram of the LED indicating circuit of embodiment 3 of the present invention;

Fig. 8 is the circuit diagram of the sound indication circuit of embodiment 3 of the present invention;

9 is a circuit diagram of a data storage circuit according to Embodiment 3 of the present invention;

10 is a schematic diagram of a second circuit board according to Embodiment 4 of the present invention;

FIG. 11 is a schematic circuit diagram of a second circuit board according to Embodiment 4 of the present invention.

Explanation of symbols: 11-first single-chip microcomputer, 12-wireless receiving circuit, 13-wireless power supply circuit, 14-fixed power supply, 15-LED indicating circuit, 16-sound indicating circuit, 17-data storage circuit;

131-resonant circuit, 1311-transmitting coil;

21-the second single-chip microcomputer, 22-detection circuit, 23-wireless receiving circuit, 24-wireless receiving circuit;

241-receiving coil, 242-rectifier circuit, 243-filter circuit, 244-voltage stabilizing circuit.

Detailed ways

The embodiments of the present invention are described in detail below. This embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following implementation example.

Example 1:

1-2 , this embodiment describes in detail the wireless powered termite detection system of the present invention, which includes: a first circuit board and a second circuit board. Wherein: the first circuit board is arranged on the termite detection detector, and its schematic diagram is as shown in Figure 1, and it comprises: the first single-chip microcomputer 11, wireless receiving circuit 12, wireless power supply circuit 13 and fixed power supply 14; Wireless receiving circuit 12 and wireless The power supply circuit 13 is respectively connected to the first single-chip microcomputer 11 , the fixed power supply 14 is connected to the wireless power supply circuit 13 , and the wireless power supply circuit 13 is also connected to the wireless receiving circuit 12 . The second circuit board is arranged on the termite detection monomer, and its schematic diagram is as shown in Figure 2, and it comprises: the second single-chip microcomputer 21, detection circuit 22, wireless transmission circuit 23 and wireless power receiving circuit 24; Detection circuit 22, wireless transmission circuit 23 and the wireless power receiving circuit 24 are connected to the second single chip microcomputer 21 respectively, and the wireless power receiving circuit 24 is also connected to the detection circuit 22 and the wireless transmitting circuit 23 . The wireless power receiving circuit 24 is wirelessly connected with the wireless power generating circuit 13, and the wireless power receiving circuit receives the electric power provided by the wireless power generating circuit 13, and supplies power for other circuits requiring electric power on the second circuit board; the wireless receiving circuit 12 is wirelessly connected with the wireless transmitting circuit 23 The connection is used for receiving the data detected by the detection circuit 22 sent by the wireless transmission circuit 23 . The detection circuit 22 is used to detect the state of the termite detection unit, and judge whether there are termites according to the state of the termite detection unit.

The fixed power supply 14 can be that when the system is working, the input end converts the AC mains power into a DC power through a full-bridge rectifier circuit, or directly supplies power to the system with a 12V, 24V DC terminal. In this embodiment, the fixed power supply 14 uses a DC 24V storage battery.

Example 2:

As shown in Figure 3, it is a schematic diagram of the first circuit board of this embodiment. This embodiment is based on Embodiment 1. The wireless power supply circuit 13 includes a resonant circuit 131, and the resonant circuit 131 includes a transmitting coil 1311. The wireless power supply circuit 13 is connected with the first single-chip microcomputer 11 and the wireless receiving circuit 12 through the resonant circuit 131.

Example 3:

As shown in FIG. 4 , it is a schematic diagram of the first circuit board of this embodiment. On the basis of Embodiment 2, an LED indicating circuit 15 , a sound indicating circuit 16 and a data storage circuit 17 are added to the first circuit board.

As shown in FIG. 5 , the pin diagram of the first single-chip microcomputer 11 is shown. The model of the first single-chip microcomputer 11 adopted in this embodiment is MCU: STM8S207.

As shown in Figure 6, it is the circuit diagram of the wireless receiving circuit 12 and the wireless power supply circuit 13, the wireless power supply circuit 13 provides 3.3V voltage to the first single-chip microcomputer 11 and the data storage circuit 17 through a simple voltage stabilizing circuit; the wireless power supply circuit 13 is the first A single-chip microcomputer 11 is powered by 3.3V, and the wireless receiving circuit 12 is powered by 5V, so R3 is used as data level conversion; the wireless receiving circuit 12 is connected to the first single-chip microcomputer 11 through corresponding pins.

As shown in Figure 7, it is the circuit diagram of the LED indicating circuit 15, which is connected with the first single-chip microcomputer 11 by corresponding pins, when receiving the wireless signal transmitted by the wireless transmitting circuit 23, D2 lights up, otherwise it goes out; when the corresponding When the reed switch is closed, D3 and D4 will light up accordingly, otherwise they will go out.

As shown in Figure 8, it is a circuit diagram of the sound indication circuit 16, which is a buzzer, and its corresponding pin is connected with the first single-chip microcomputer 11, and when receiving the signal that the wireless transmission circuit 23 transmits, the buzzer does not work; When a wireless signal is received and the two dry reed switches are engaged, two beeps of the same length will be emitted; when a wireless signal is received and one or both reed switches are not engaged, a long sound will be emitted. A short sound. Of course, this is not a limitation of the present invention, and in different embodiments, different settings can be made to the emitted sounds, as long as different states can be indicated.

As shown in Figure 9, it is a circuit diagram of the data storage circuit 17. Here, a large-capacity FLASH memory W25L6406 is used, which has a storage space of 8Mbyte and can store 10 ⁶ pieces of data. It is connected to the first single-chip microcomputer 11 through corresponding pins. It also includes a USB interface, which can be connected to a serial communication line through the USB interface, and the received data can be read to the computer.

Example 4:

As shown in Figure 10, it is a schematic diagram of the second circuit board of this embodiment. This embodiment is based on Embodiment 1 or Embodiment 2. The wireless power receiving circuit 24 includes a receiving coil 241, a rectifier circuit 242, and a filter circuit 243. And the voltage stabilizing circuit 244 , the receiving coil 241 is connected with the first single-chip microcomputer 21 , the detection circuit 22 and the wireless transmitting circuit 23 through the rectifying circuit 242 , the filter circuit 243 and the voltage stabilizing circuit in sequence.

In this embodiment, the detection circuit 22 includes a magnetic switch and an input detection circuit. The magnetic switch is two reed switches J2 and J3, and the closing or breaking of the magnetic switch is realized by the pull-in or disconnection of the reed switches J2 and J3. open. The detection body (magnetic steel) of the magnetic switch is set in the termite detection unit. When termites bite through the bait at the lower end of the detection switch, the detection body drops and leaves the detection range of the magnetic switch. One of the reed switches J2 and J3 or The two are disconnected, otherwise the two reed switches J2 and J3 are closed. Therefore, whether there are termites can be judged by the suction or disconnection of the dry reed switches J2 and J3. When both the reed switches J2 and J3 are closed , Judging that there are no termites, if one of the reed switches J2 and J3 is disconnected or both are disconnected at the same time, it is judged that there are termites.

As shown in Figure 11, it is the circuit schematic diagram of the second circuit board of the present embodiment, the reed switch J2 and J3, and the resistor R4, R6 form the input detection circuit, the IO ports P1.1 and P1.2 of the second single-chip microcomputer 21 Read the change of the port, then add the current state of the two reed switches into it according to the communication protocol, output the corresponding waveform through P1.4, and send it to the wireless receiving circuit 12 on the detector through the wireless transmitting circuit 23; here the wireless The transmitting circuit adopts 433MHz wireless transmitting circuit. The wireless power receiving circuit realizes wireless power supply through the receiving coil and D2 and C2, R5 and D3 realize simple 5V voltage regulation, and C1, C6 and C7 form a filter circuit.

What is disclosed here are only preferred embodiments of the present invention. The purpose of selecting and describing these embodiments in this description is to better explain the principle and practical application of the present invention, not to limit the present invention. Any modifications and changes made by those skilled in the art within the scope of the description shall fall within the protection scope of the present invention.

Claims (11)

1. a termite detection system for wireless power, is characterized in that, comprising: first circuit board and second circuit board; Wherein:

Described first circuit board is arranged on termite and detects on detector, comprising: the first single-chip microcomputer, wireless receiving circuit, wireless power circuit and fixed power source; Described wireless receiving circuit and wireless power circuit are connected with described first single-chip microcomputer respectively, and described fixed power source is connected with described wireless power circuit, and described fixed power source is also connected with described wireless receiving circuit;

Described second circuit board is arranged on termite and detects on monomer, comprising: second singlechip, testing circuit, radio transmitter and wireless parasite power supplier; Described testing circuit, described radio transmitter and wireless parasite power supplier are connected with described second singlechip respectively, and described wireless parasite power supplier is also connected with described testing circuit and described radio transmitter;

Described wireless power circuit and described wireless parasite power supplier wireless connections, described wireless power circuit is used for powering for described first single-chip microcomputer, described wireless receiving circuit and described second circuit board; The signal that described wireless receiving circuit is launched for receiving described radio transmitter.

2. the termite detection system of wireless power according to claim 1, is characterized in that, described wireless power circuit comprises resonant circuit, and described resonant circuit comprises transmitting coil.

3. the termite detection system of wireless power according to claim 1, is characterized in that, described first circuit board also comprises LED indicating circuit, and it is connected with described first single-chip microcomputer.

4. the termite detection system of wireless power according to claim 1, is characterized in that, described first circuit board also comprises sound instruction circuit, and it is connected with described first single-chip microcomputer;

Further, described sound instruction circuit is hummer.

5. the termite detection system of wireless power according to claim 4, is characterized in that, described first circuit board also comprises data storage circuitry, and described data storage circuitry is connected with described first single-chip microcomputer.

6. the termite detection system of wireless power according to claim 5, is characterized in that, described data storage circuitry comprises USB interface, for being connected with dataphone.

7. the termite detection system of wireless power according to claim 2, is characterized in that, described wireless parasite power supplier comprises receiving coil.

8. the termite detection system of wireless power according to claim 7, is characterized in that, described wireless parasite power supplier also comprises: the rectification circuit connected successively, filtering circuit and mu balanced circuit;

Described receiving coil by described rectification circuit, filtering circuit and mu balanced circuit be described second singlechip, described testing circuit and described radio transmitter power.

9. the termite detection system of wireless power according to claim 1, is characterized in that, described testing circuit comprises magnetic switch, and described magnetic switch is connected with described second singlechip by input detecting circuit.

10. the termite detection system of wireless power according to claim 1, is characterized in that, described magnetic switch is tongue tube, by the adhesive of described tongue tube or disconnect and realize the closed of magnetic switch or disconnect.

The termite detection system of 11. wireless powers according to claim 10, is characterized in that, the quantity of described tongue tube is at least two, and at least two described tongue tubes detect on monomer described termite and are uniformly distributed.