Inductive switch control circuit capable of realizing interconnection control

Abstract

The utility model discloses an inductive switch control circuit capable of realizing interconnection control, which belongs to the technical field of control switches and comprises at least one wireless induction module, a control module and a switch circuit, and the signal input end of the control module is connected with the at least one wireless induction module through a wireless network. The signal output end of the control module is connected with the switching circuit and controls on-off of the switching circuit according to signals sent by the wireless induction module, and the switching circuit is used for being connected with a load. The system provided by the utility model has the characteristics of accurate detection, flexible arrangement and networking control, and is good in practicability and wide in applicability.

Description

Technical Field

[0001] The present invention relates to the technical field of practical energy-saving switches, and in particular to an induction switch control circuit capable of interconnection control. Background Art

[0002] As people's living standards gradually improve, traditional control switches cannot meet people's needs for intelligent and energy-saving switches. For this reason, people have developed sound and light control switches and infrared induction switches.

[0003] However, the sound and light control switch is easily affected by environmental noise, resulting in too high switching frequency, which can easily damage the lamps. What's more, it is often necessary to create a high-decibel sound to trigger the switch, which can easily cause noise pollution. Similarly, the infrared sensor panel switch is easily interfered by heat sources, light sources, radio frequency radiation, and thermal airflow. At the same time, the passive infrared has poor penetration, and the infrared radiation of the human body is easily blocked. Moreover, when the ambient temperature is close to the human body temperature, the sensitivity of the detection is significantly reduced, causing short-term failure of the setting. In addition, many existing control switches are one-to-one, do not support network control, are not flexible enough, and cannot meet the requirements of linkage control in some places. Summary of the invention

[0004] In view of this, the purpose of the utility model is to provide an interconnectable and controllable induction switch control circuit, so as to solve the problem that the control switch has poor reliability and cannot be controlled through the Internet.

[0005] The purpose of the utility model can be achieved through the following technical solutions: an interconnectable and controllable induction switch control circuit, comprising a wireless induction module, a control module and a switch circuit, wherein the signal input end of the control module is connected to at least one wireless induction module via a wireless network, the signal output end of the control module is connected to the switch circuit and controls the on and off of the switch circuit according to the signal sent by the wireless induction module, and the switch circuit is used to be connected to a load.

[0006] Preferably, the wireless sensing module includes a Doppler radar, a first controller, a first voltage conversion unit and a wireless transmitting unit. The Doppler radar is connected to a signal input end of the first controller and provides a sensing signal. The signal output end of the first controller is connected to the wireless transmitting unit. The input end of the first voltage conversion unit is connected to a power input through an interface circuit. The first voltage conversion unit is respectively connected to the first controller and the wireless transmitting unit.

[0007] Preferably, the wireless sensing module also includes a first operation indication circuit and a first networking indication circuit both connected to the first controller; the first operation indication circuit is used to indicate whether the wireless sensing module is in a working state; the first networking indication circuit is used to indicate whether the wireless sensing module is online networking.

[0008] Preferably, the first controller is also connected to a light control circuit, and the light control circuit uses a photoresistor.

[0009] Preferably, the first controller is also connected to a first button circuit and a first button indication circuit, the first button circuit is used for manual start and stop control, and the first button indication circuit is used to indicate the working state of the first button circuit.

[0010] Preferably, the control module includes a second controller, a second voltage conversion unit and a wireless receiving unit, the signal input end of the second controller is connected to the wireless receiving unit, the output end of the second controller is connected to the switching circuit, the input end of the second voltage conversion unit is connected to the power input through an interface circuit, and the second voltage conversion unit is respectively connected to the second controller, the wireless receiving unit and the switching circuit.

[0011] Preferably, the second controller is also connected to a second button circuit and a second button indication circuit, the second button circuit is used for manual start and stop control, and the second button indication circuit is used to indicate the working state of the second button circuit.

[0012] Preferably, the control module also includes a second operation indication circuit and a second networking indication circuit, both of which are connected to the second controller; the second operation indication circuit is used to indicate whether the control module is in a working state; the second networking indication circuit is used to indicate whether the control module is online networked.

[0013] Preferably, the switch circuit includes a first resistor, a second resistor, a third resistor, a fourth resistor, a driver chip and a MOS tube; the signal output end of the control module is connected to the first resistor and the second resistor respectively, the other end of the first resistor is grounded, and the other end of the second resistor is connected to the signal input end of the driver chip; the signal output end of the driver chip is connected to the gate G of the MOS tube through the third resistor and is grounded through the fourth resistor at the same time, the power supply end of the driver chip is connected to the voltage conversion unit; the source S of the MOS tube is grounded, and the drain D of the MOS tube is used to be connected to the load.

[0014] Compared with the prior art, the interconnected and controllable induction switch control circuit has the following advantages: each wireless monitoring module utilizes Doppler sensing to detect objects in a non-contact manner, and on this basis, multiple wireless monitoring modules and control modules are freely networked to form a wireless monitoring network to realize network switch control; the detection is stable and reliable, and is not affected by environmental conditions such as temperature, humidity, light, and airflow, and has good reliability; it can be installed in a non-metallic shell such as plastic, glass, and wood of a certain thickness for protection, and has a wide range of applicability; multiple wireless monitoring modules can select appropriate sensing directions according to the environment, and the installation environment is more flexible, which is suitable for the control of various application equipment, environmental auxiliary light source control, underground parking lots, channel lighting and other fields. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a principle block diagram of an interconnectable and controllable inductive switch control circuit in an embodiment.

[0016] Figure 2 Schematic diagram of the wireless monitoring module in the embodiment.

[0017] Figure 3 is a circuit diagram of the control part of the wireless monitoring module in the embodiment.

[0018] Figure 4 Schematic diagram of the control module and the switch circuit in the embodiment.

[0019] Figure 5 is a circuit diagram of a control module and a switch circuit in an embodiment. DETAILED DESCRIPTION

[0020] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0021] like Figure 1 As shown, the interconnectable and controllable induction switch control circuit provided by the utility model includes a wireless induction module, a control module and a switch circuit. The signal input end of the control module is connected to at least one wireless induction module through a wireless network. The signal output end of the control module is connected to the switch circuit and controls the on and off of the switch circuit according to the signal sent by the wireless induction module. The switch circuit is used to connect to the load.

[0022] Specifically, Figure 2 , 3As shown, the wireless sensing module includes a Doppler radar, a first controller, a first voltage conversion unit and a wireless transmitting unit. The first controller adopts a single-chip microcomputer STC8G1K08-38I-SOP16, and the Doppler radar is connected to the radar input pin 2 of the single-chip microcomputer through an interface circuit. The Doppler radar uses the Doppler effect to detect the position and relative movement speed of the moving target, so that it can accurately detect moving people and objects, providing a basis for accurate control of the switch. The radar signal is input and transmitted to the first controller through the interface. The signal output end of the first controller is connected to the wireless transmitting unit. In this embodiment, the wireless transmitting unit is implemented by a radio frequency chip A7105. The first voltage conversion unit is implemented by a voltage stabilizing chip AMS1117-3.3V, which converts the 5V voltage into 3.3V and outputs it to the first controller and the wireless transmitting unit.

[0023] like Figure 4 , 5 As shown, the control module includes a second controller, a second voltage conversion unit and a wireless receiving unit. Similarly, the second controller also uses a single-chip microcomputer STC8G1K08-38I-SOP16, whose signal input end is connected to the wireless receiving unit, and the output end of the second controller is connected to the switching circuit. In this embodiment, the wireless receiving unit is also implemented using the radio frequency chip A7105. The second voltage conversion unit is also implemented using the voltage stabilizing chip AMS1117-3.3V, whose input end is connected to the 12V voltage input through the interface circuit, and the output end outputs 3.3V voltage to the second controller, 3.3V voltage to the wireless receiving unit, and 12V voltage to the switching circuit.

[0024] The switch circuit includes resistor R3, resistor R4, resistor R5, resistor R15, driver chip EG27517 and MOS tube Q2; the signal output by the control MCU chip is connected to resistor R3 and resistor R15 respectively, the other end of resistor R15 is grounded, and the other end of resistor R3 is connected to the signal input terminal IN+ of the driver chip EG27517; the signal output terminal OUT of the driver chip EG27517 is connected to the gate G of the MOS tube Q2 through the resistor R5 and is grounded through the resistor R4 at the same time, and the power supply terminal of the driver chip is connected to the voltage conversion unit; the source S of the MOS tube Q2 is grounded and the drain D is used to be connected to the load.

[0025] In one embodiment of the utility model, the wireless sensing module also includes a first operation indication circuit and a first networking indication circuit, both of which are connected to the first controller; the control module also includes a second operation indication circuit and a second networking indication circuit, both of which are connected to the second controller. The first operation indication circuit and the second operation indication circuit are respectively indicated by an LED indicator RUN, whose operating voltage is 3.3V, and the indicator light is turned on and off to indicate whether the corresponding controller is in a working state. The first networking indication circuit and the second networking indication circuit are respectively indicated by an LED indicator LINK, whose operating voltage is 3.3V, and the indicator light is turned on and off to indicate whether the corresponding controller is in an online networking state.

[0026] In one embodiment of the utility model, the first controller is also connected to a first button circuit and a first button indication circuit, the first button circuit is used for manual start and stop control, and the first button indication circuit is used to indicate the working status of the first button circuit; the second controller is also connected to a second button circuit and a second button indication circuit, the second button circuit is used for manual start and stop control, and the second button indication circuit is used to indicate the working status of the second button circuit.

[0027] In one embodiment of the utility model, the first controller is also connected to a light control circuit, which uses a photoresistor, and its model is GL5516. The photoresistor can be used to prevent the wireless sensing module from working under a certain brightness (such as during the day); when the brightness is not reached, the wireless sensing module will work, thereby further improving the energy saving effect.

[0028] The interconnectable and controllable induction switch control circuit of the utility model can separate the wireless monitoring modules and place them in various environments respectively, and can freely set their induction directions, thereby improving monitoring flexibility and achieving precise control, and has good practicality and applicability.

[0029] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. An interconnectable and controllable inductive switch control circuit, characterized in that: It includes a wireless sensing module, a control module and a switch circuit. The signal input end of the control module is connected to at least one of the wireless sensing modules via a wireless network. The signal output end of the control module is connected to the switch circuit and controls the on and off of the switch circuit according to the signal sent by the wireless sensing module. The switch circuit is used to connect to a load.

2. The interconnectable and controllable inductive switch control circuit according to claim 1, characterized in that: The wireless sensing module includes a Doppler radar, a first controller, a first voltage conversion unit and a wireless transmitting unit. The Doppler radar is connected to a signal input end of the first controller and provides a sensing signal. The signal output end of the first controller is connected to the wireless transmitting unit. The input end of the first voltage conversion unit is connected to a power input through an interface circuit. The first voltage conversion unit is respectively connected to the first controller and the wireless transmitting unit.

3. The interconnectable and controllable inductive switch control circuit according to claim 2, characterized in that: The wireless sensing module also includes a first operation indication circuit and a first networking indication circuit, both of which are connected to the first controller; the first operation indication circuit is used to indicate whether the wireless sensing module is in a working state; the first networking indication circuit is used to indicate whether the wireless sensing module is online networking.

4. The interconnectable and controllable induction switch control circuit according to claim 2 or 3, characterized in that: The first controller is also connected to a light control circuit, and the light control circuit uses a photoresistor.

5. The interconnectable and controllable induction switch control circuit according to claim 2 or 3, characterized in that: The first controller is also connected to a first button circuit and a first button indication circuit, wherein the first button circuit is used for manual start and stop control, and the first button indication circuit is used for indicating the working state of the first button circuit.

6. The interconnectable and controllable induction switch control circuit according to claim 1, 2 or 3, characterized in that: The control module includes a second controller, a second voltage conversion unit and a wireless receiving unit. The signal input end of the second controller is connected to the wireless receiving unit, the output end of the second controller is connected to the switching circuit, the input end of the second voltage conversion unit is connected to the power input through an interface circuit, and the second voltage conversion unit is respectively connected to the second controller, the wireless receiving unit and the switching circuit.

7. The interconnectable and controllable inductive switch control circuit according to claim 6, characterized in that: The second controller is also connected to a second button circuit and a second button indication circuit, the second button circuit is used for manual start and stop control, and the second button indication circuit is used to indicate the working state of the second button circuit.

8. The interconnectable and controllable inductive switch control circuit according to claim 7, characterized in that: The control module also includes a second operation indication circuit and a second networking indication circuit, both of which are connected to the second controller; the second operation indication circuit is used to indicate whether the control module is in a working state; the second networking indication circuit is used to indicate whether the control module is online networking.

9. The interconnectable and controllable induction switch control circuit according to claim 1, 2 or 3, characterized in that: The switch circuit includes a first resistor, a second resistor, a third resistor, a fourth resistor, a driver chip and a MOS tube; the signal output end of the control module is respectively connected to the first resistor and the second resistor, the other end of the first resistor is grounded, and the other end of the second resistor is connected to the signal input end of the driver chip; the signal output end of the driver chip is connected to the gate G of the MOS tube through the third resistor and is grounded through the fourth resistor at the same time, the power supply end of the driver chip is connected to the voltage conversion unit; the source S of the MOS tube is grounded, and the drain D of the MOS tube is used to be connected to the load.

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