CN205091908U - Wire controller - Google Patents

Abstract

The utility model discloses a wire controller, which comprises a control unit, a backlight circuit and a button light circuit respectively connected with the control unit, and also includes a human body proximity sensing device, and the human body proximity sensing device includes a sensor for emitting infrared signals. An infrared transmitting circuit and an infrared receiving circuit for receiving reflected infrared signals, the infrared transmitting circuit and the infrared receiving circuit are respectively connected with the control unit. The wire controller of the utility model can automatically detect the approach of people at night and turn on the backlight and key lights in time, so that the user can accurately know the position of the wire controller, thereby achieving an effect of high user experience.

Description

a wire controller

technical field

The utility model relates to a wire controller.

Background technique

With the widespread application of smart homes, wire controllers have gradually become an important platform for human-computer interaction. Making wire controllers more friendly and user-friendly has become the design direction of wire controllers today. At present, at night, the wire controller is usually in a standby mode, and the backlight and button lights will go out. If the user wants to operate the wire controller at this time, although he knows the approximate location of the wire controller, he needs to approach it and touch it on the wall with his hands. Looking back, it is extremely inconvenient to use at night, and the user experience is poor. In addition, there is another type of wire controller in which the backlight and key lights are always on no matter in the night or during the day. If the wire controller is always on at night, it will cause light pollution and waste a lot of unnecessary power.

Contents of the invention

In order to solve the problem that the existing wire controller is inconvenient to use at night in standby mode, the utility model proposes a display controller, which can be very convenient to use at night.

In order to solve the above-mentioned technical problems, the utility model adopts the following technical solutions to realize:

A wire controller, comprising a control unit, a backlight circuit and a button lamp circuit respectively connected to the control unit, and also includes a human body proximity sensing device, the human body proximity sensing device includes an infrared emitting circuit for emitting infrared signals and a For the infrared receiving circuit that receives reflected infrared signals, the infrared transmitting circuit and the infrared receiving circuit are respectively connected to the control unit.

Further, the infrared emission circuit includes an infrared emission tube and a switch circuit, one end of the infrared emission tube is connected to a DC power supply, the other end is connected to the ground terminal through the switch circuit, and the control end of the switch circuit is connected to the control unit connected to receive the control signal sent by the control unit.

Further, the switch circuit includes an NPN transistor, the collector of the NPN transistor is connected to the infrared emitting tube, the base is connected to the control signal output terminal of the control unit, and the emitter is connected to the ground.

Further, the infrared emitting tube is an infrared emitting diode, the anode of the infrared emitting diode is connected to a DC power supply, and the cathode is connected to the collector of the NPN transistor.

Further, the infrared receiving circuit includes an infrared receiving chip, the signal output end of the infrared receiving chip is connected to the signal input end of the control unit.

Further, the infrared emitting tube is packaged in an infrared emitting head, and the emitting angle of the infrared emitting head is ±10°.

Further, the infrared receiving chip is packaged in the infrared receiving head, and the infrared emitting head and the infrared receiving head are arranged on the outer surface of the wire controller panel with a certain interval.

Compared with the prior art, the advantages and positive effects of the utility model are: the wire controller of the utility model can automatically detect the approach of people at night and light up the backlight and key lights in time, so that the user can accurately know The position of the wire controller can achieve a high user experience effect.

After reading the detailed description of the embodiments of the utility model in conjunction with the accompanying drawings, other features and advantages of the utility model will become clearer.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the 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. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is a schematic block diagram of an embodiment of the wire controller proposed by the utility model;

Fig. 2 is a kind of circuit principle diagram of infrared emission circuit in Fig. 1;

Fig. 3 is a schematic diagram of a backlight circuit of an embodiment of the wire controller proposed by the present invention;

Fig. 4 is a schematic diagram of a button lamp circuit of an embodiment of the wire controller proposed by the present invention;

Fig. 5 is a kind of circuit principle diagram of infrared receiving circuit in Fig. 1;

Fig. 6 is a schematic diagram of the emission angle of the infrared emission head in an embodiment of the wire controller proposed by the present invention.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Embodiment 1. This embodiment proposes a wire controller, as shown in FIG. 1 , which includes a control unit, a backlight circuit and a button light circuit respectively connected to the control unit, and also includes a human body proximity sensing device, and the human body The proximity sensing device includes an infrared transmitting circuit for transmitting infrared signals and an infrared receiving circuit for receiving reflected infrared signals, and the infrared transmitting circuit and the infrared receiving circuit are respectively connected to the control unit. In the wire controller of this embodiment, the infrared emitting circuit emits infrared light at a certain frequency at night, and when a human body approaches, it reflects the infrared light emitted by the infrared emitting circuit, and the reflected light is received by the infrared receiving circuit, so that the human body can be automatically detected. Approaching, the control unit lights up the backlight and key lights in time according to the judgment of the approach of the human body, so that the user can accurately know the position of the wire controller, so as to achieve a high user experience effect.

As a preferred embodiment, as shown in Figure 2, a preferred implementation circuit structure of the infrared emission circuit is given in this embodiment, the infrared emission circuit includes an infrared emission tube TX1 and a switch circuit, the infrared emission tube One end of TX1 is connected to the DC power supply VDD, and the other end is connected to the ground terminal through the switch circuit. The control end of the switch circuit is connected to the control unit to receive the control signal sent by the control unit, and is used to control the switching circuit. off, and then control the conduction state of the circuit where the infrared emission tube TX1 is located to realize light emission or non-light emission. Specifically, the switch circuit in this embodiment is realized by an NPN transistor, as shown in Figure 2, the switch circuit includes an NPN transistor Q12, the collector of the NPN transistor Q12 is connected to the infrared emitting tube TX1, The base is connected to the control signal output terminal TX_OUT of the control unit, and the emitter is connected to the ground. When the control signal output terminal TX_OUT of the control unit outputs a high level, the NPN transistor A12 is turned on, so the circuit where the infrared emission tube TX1 is located is turned on and emits light. When the control signal output terminal TX_OUT of the control unit outputs a low level, the NPN transistor A12 is turned off. Therefore, the circuit where the infrared emission tube TX1 is located is not conducting and does not emit light, so that the control signal output terminal TX_OUT of the control unit outputs different signals to control the light emitting state of the infrared emission tube. When the human body approaches, it will block the infrared light emitted by the infrared transmitting tube TX1 and reflect it back to be received by the infrared receiving circuit. The control unit judges whether the human body is approaching according to the receiving situation of the infrared receiving circuit, and then generates a corresponding control signal to light up The backlight and key lights of the wire controller, and the schematic diagrams of the backlight and key light circuits are shown in Figure 3 and Figure 4. Among them, LED1 is the backlight of the wire controller, and LED2~LED7 are the button lights.

As shown in Figure 5, the infrared receiving circuit in this embodiment includes an infrared receiving chip IC5, the signal output terminal OUT of the infrared receiving chip IC5 is connected to the signal input terminal RX_IN of the control unit, and the received signal can be sent to the control unit. unit.

Since the application environment of this wire controller is indoors, considering the indoor area comprehensively, if the infrared sensing distance is too far, it is easy to be blocked by internal furniture items, and if the sensing distance is too short, it will lose the meaning of human body detection, which is also inconvenient to use. The tube is encapsulated in the infrared emission head, as shown in Figure 6, which is a schematic diagram of the emission angle of the infrared emission head. In this embodiment, the emission angle of the infrared emission head is ±10°, so as to ensure a 0.8m～1m Human sensing distance.

Wherein, the infrared receiving chip is packaged in the infrared receiving head, and the infrared emitting head and the infrared receiving head are arranged on the outer surface of the wire controller panel at a certain interval, so as to prevent the infrared emitting circuit from interfering with the infrared receiving circuit.

Of course, the above description is not a limitation of the present utility model, and the present utility model is not limited to the above-mentioned examples. Those of ordinary skill in the art may make changes, modifications, additions or replacements within the essential scope of the present utility model. It should also belong to the protection scope of the present utility model.

Claims (7)

1. a line control machine, comprise control module, the backlight circuit be connected with described control module respectively and press key lamp circuit, it is characterized in that: also comprise human body proximity induction installation, described human body proximity induction installation comprises the infrared transmitting circuit for launching infrared signal and the infrared receiving circuit for receiving reflective infrared signal, and described infrared transmitting circuit is connected with described control module respectively with described infrared receiving circuit.

2. line control machine according to claim 1, it is characterized in that: described infrared transmitting circuit comprises infrared transmitting tube and on-off circuit, described infrared transmitting tube one end is connected with direct supply, one end connects earth terminal by described on-off circuit in addition, the control end of described on-off circuit is connected with described control module, receives the control signal that described control module sends.

3. line control machine according to claim 2, it is characterized in that: described on-off circuit comprises a NPN triode, the collector of described NPN triode is connected with described infrared transmitting tube, and base stage is connected with the control signal output terminal of described control module, and emitter is held with ground and is connected.

4. line control machine according to claim 3, is characterized in that: described infrared transmitting tube is an infrared-emitting diode, and the anode of described infrared-emitting diode is connected with direct supply, and negative electrode is connected with the collector of described NPN triode.

5. line control machine according to claim 1, is characterized in that: described infrared receiving circuit comprises an infrared receiver chip, and the signal output part of described infrared receiver chip is connected with the signal input part of described control module.

6. line control machine according to claim 5, is characterized in that: described infrared transmitting tube is packaged in infrared emission head, and the emission angle of described infrared emission head is ± 10 °.

7. line control machine according to claim 6, is characterized in that: described infrared receiver chip package is in infrared receiving terminal, and described infrared emission head and infrared receiving terminal keep the outer surface being arranged on line control machine panel of certain intervals.