Human body induction control device

Abstract

The utility model discloses a human body induction control device, and relates to the technical field of switch control devices. The device comprises a microprocessor module, the signal output end of a switch interface module is connected with one signal input end of the microprocessor module, the switch interface module is used for receiving closing or opening signals of a switch K1, and the signal input end of the switch interface module is connected with the switch K1; the signal output end of the PIR interface module is connected with one signal input end of the microprocessor module, the PIR interface module is used for receiving a human body induction signal and processing the human body induction signal, and the signal input end of the PIR interface module is connected with the signal output end of the human body induction module; the signal input end of the control signal output module is connected with one signal output end of the microprocessor module and used for processing a control signal output by the microprocessor module, and the signal output end of the control signal output module is connected with the control end of the switch K1 and drives the switch K1 to act; the device can improve the accuracy of human body detection.

Description

Technical Field

[0001] The utility model relates to the technical field of switch control devices, in particular to a human body sensing control device. Background Art

[0002] At present, PIR human body sensors are widely used in smart toilets, conference rooms, mother-and-child rooms and other places to sense the human body. The infrared waves generated by the movement of the human body are used to detect whether there are people in the area. However, the biggest disadvantage of this type of product is that people need to keep moving. If they do not move, the human body cannot be detected. At the same time, a delay needs to be set to ensure that the same state will be maintained during the delay time, so there will be frequent false alarms or no detection. Utility Model Content

[0003] The technical problem to be solved by the utility model is how to provide a human body sensing control device with accurate detection.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a human body sensing control device, comprising:

[0005] A microprocessor module, a signal output end of the switch interface module is connected to a signal input end of the microprocessor module, and is used to receive a closing or opening signal of the switch K1, and the signal input end of the switch interface module is connected to the switch K1;

[0006] The signal output end of the PIR interface module is connected to a signal input end of the microprocessor module for receiving a human body sensing signal and processing the human body sensing signal, and the signal input end of the PIR interface module is connected to the signal output end of the human body sensing module;

[0007] The signal input end of the control signal output module is connected to a signal output end of the microprocessor module, and is used to process the control signal output by the microprocessor module. The signal output end of the control signal output module is connected to the control end of the switch K1, and drives the switch K1 to operate.

[0008] A display module is connected to the signal output terminal of the microprocessor module and is used to display the working status of the control device;

[0009] The power supply module is connected to the power supply input terminal of the module in the control device that needs power supply, and is used to provide working power for it.

[0010] Preferably, the microprocessor module includes a STC8G1K08 single chip microcomputer U2.

[0011] A further technical solution is that the switch interface module includes a connector JP2, pin 2 of the JP2 is grounded, and pin 1 of the JP2 is divided into two paths after passing through a reverse diode D1, the first path is connected to a +5V power supply through a resistor R1, and the second path is the output end of the switch interface module, which is connected to pin 7 of U2.

[0012] A further technical solution is that: the PIR interface module includes a connector JP3, pin 1 of the JP3 is connected to a +5V power supply, pin 3 of the JP3 is grounded, pin 2 of the JP3 is connected to one end of a resistor R9, the other end of the resistor R9 is divided into two paths, the first path is grounded via a resistor R10, the second path is connected to the base of the transistor Q3, the emitter of the transistor Q3 is grounded, the collector of the transistor Q3 is divided into three paths, the first path is grounded via a resistor R7, the second path is connected to the +5V power supply via a resistor R8, and the third path is connected to the base of the transistor Q2; the emitter of the transistor Q2 is grounded, the collector of the transistor Q2 is divided into two paths, the first path is connected to the +5V power supply via a resistor R6, the second path is connected to the cathode of the diode D2, the anode of the diode D2 is divided into two paths, the first path is connected to the +5V power supply via a resistor R4, and the second path is connected to pin 8 of the U2.

[0013] A further technical solution is that the control signal output module includes a resistor R2, one end of the resistor R2 is connected to pin 3 of U2, and the other end of the resistor R2 is divided into two paths, the first path is grounded through the resistor R3, and the second path is connected to the gate of the field effect transistor Q1, the drain of the field effect transistor Q1 is grounded, the source of the field effect transistor Q1 is connected to pin 2 of the connector JP3, pin 1 of the connector JP3 is connected to a 12V power supply, and pin 3 of the connector JP3 is grounded.

[0014] A further technical solution is that the display module includes a light emitting diode D3, the positive electrode of the light emitting diode D3 is connected to a +5V power supply, and the negative electrode of the light emitting diode D3 is connected to pin 1 of U2 via a resistor R5.

[0015] A further technical solution is that the power module includes a 78L05 power chip U1, pin 1 of U1 is divided into two paths, the first path is grounded via capacitor C1, and the second path is a +5V power output terminal, pin 2 of U1 is grounded, and pin 3 of U1 is divided into three paths, the first path is grounded via capacitor C2, the second path is grounded via capacitor C4, and the third path is connected to the +12V power supply.

[0016] The beneficial effect of adopting the above technical solution is that: the present application includes a microprocessor module, a switch interface module, a PIR interface module and a control signal output module. The above modules can effectively solve the problem of people in smart toilets, conference rooms and other places being fully detected even in a stationary state during use. At the same time, it also solves the problems of delay and false alarm and improves the accuracy of human body detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0018] Figure 1 It is a principle block diagram of the device described in the embodiment of the utility model;

[0019] Figure 2 It is a working principle diagram of the device described in the embodiment of the utility model;

[0020] Figure 3 It is a circuit schematic diagram of a microprocessor module in the device according to an embodiment of the utility model;

[0021] Figure 4 It is a circuit schematic diagram of the switch interface module in the device described in the embodiment of the utility model;

[0022] Figure 5 It is a circuit schematic diagram of the PIR interface module in the device described in the embodiment of the utility model;

[0023] Figure 6 It is a circuit schematic diagram of a control signal output module in the device described in the embodiment of the utility model;

[0024] Figure 7 It is a circuit schematic diagram of a display module in the device described in the embodiment of the utility model;

[0025] Figure 8 It is a circuit schematic diagram of the power module in the device described in the embodiment of the utility model. DETAILED DESCRIPTION

[0026] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] like Figure 1As shown, an embodiment of the present invention discloses a human body sensing control device, including: a microprocessor module, a signal output end of a switch interface module connected to a signal input end of the microprocessor module, for receiving a closing or opening signal of a switch K1, and the signal input end of the switch interface module is connected to the switch K1; a signal output end of a PIR interface module is connected to a signal input end of the microprocessor module, for receiving a human body sensing signal and processing the human body sensing signal, and the signal input end of the PIR interface module is connected to the signal output end of the human body sensing module; a signal input end of a control signal output module is connected to a signal output end of the microprocessor module, for processing a control signal output by the microprocessor module, and the signal output end of the control signal output module is connected to the control end of the switch K1 to drive the switch K1 to operate; a display module is connected to the signal output end of the microprocessor module, for displaying the working state of the control device; a power supply module is connected to the power supply input end of a module in the control device that needs power supply, for providing working power therefor.

[0029] Working principle:

[0030] The switch K1 is connected to the signal input end of the switch interface module; the signal input end of the PIR interface module is connected to the signal input end of the PIR module, and the PIR module is used to detect the human body; the output signal of the control signal output module is Vo, such as Figure 2 As shown;

[0031] 1) When the switch K1 is closed, the control device starts to work, and the PIR module starts detection. If the PIR module detects that someone is moving, Vo will continue to output a low level signal until the switch K1 is disconnected.

[0032] 2) When the switch K1 is turned off, the PIR module stops working immediately, and Vo is always output at a high level or in an open circuit state.

[0033] 3) When switch K1 is closed, if the PIR module does not detect anyone, the Vo output is always a high level signal.

[0034] Preferably, Figure 3 As shown, the microprocessor module includes a STC8G1K08 single-chip microcomputer U2. Figure 4 As shown, the switch interface module includes a connector JP2, pin 2 of the JP2 is grounded, and pin 1 of the JP2 is divided into two paths after passing through a reverse diode D1, the first path is connected to a +5V power supply through a resistor R1, and the second path is the output end of the switch interface module, which is connected to pin 7 of U2.

[0035] like Figure 5As shown, the PIR interface module includes a connector JP3, wherein pin 1 of the JP3 is connected to a +5V power supply, pin 3 of the JP3 is grounded, pin 2 of the JP3 is connected to one end of a resistor R9, and the other end of the resistor R9 is divided into two paths, wherein the first path is grounded via a resistor R10, and the second path is connected to the base of a transistor Q3, the emitter of the transistor Q3 is grounded, and the collector of the transistor Q3 is divided into three paths, wherein the first path is grounded via a resistor R7, the second path is connected to a +5V power supply via a resistor R8, and the third path is connected to the base of a transistor Q2; the emitter of the transistor Q2 is grounded, and the collector of the transistor Q2 is divided into two paths, wherein the first path is connected to a +5V power supply via a resistor R6, and the second path is connected to the cathode of a diode D2, and the anode of the diode D2 is divided into two paths, wherein the first path is connected to a +5V power supply via a resistor R4, and the second path is connected to pin 8 of the U2.

[0036] like Figure 6 As shown, the control signal output module includes a resistor R2, one end of the resistor R2 is connected to the 3rd pin of U2, and the other end of the resistor R2 is divided into two paths, the first path is grounded through the resistor R3, and the second path is connected to the gate of the field effect transistor Q1, the drain of the field effect transistor Q1 is grounded, the source of the field effect transistor Q1 is connected to the 2nd pin of the connector JP3, the 1st pin of the connector JP3 is connected to the 12V power supply, and the 3rd pin of the connector JP3 is grounded.

[0037] like Figure 7 As shown, the display module includes a light emitting diode D3, the positive electrode of the light emitting diode D3 is connected to a +5V power supply, and the negative electrode of the light emitting diode D3 is connected to the pin 1 of U2 via a resistor R5. Figure 8 As shown, the power module includes a 78L05 power chip U1, pin 1 of U1 is divided into two paths, the first path is grounded via capacitor C1, and the second path is a +5V power output terminal, pin 2 of U1 is grounded, and pin 3 of U1 is divided into three paths, the first path is grounded via capacitor C2, the second path is grounded via capacitor C4, and the third path is connected to the +12V power supply.

[0038] The present application includes a microprocessor module, a switch interface module, a PIR interface module and a control signal output module. The above modules can effectively solve the problem of people in smart toilets, conference rooms and other places being fully detected even in a stationary state during use. At the same time, it also solves the problems of delay and false alarm and improves the accuracy of human body detection.

Claims

1. A human body sensing control device, characterized in that include: A microprocessor module, a signal output end of the switch interface module is connected to a signal input end of the microprocessor module, and is used to receive a closing or opening signal of the switch K1, and the signal input end of the switch interface module is connected to the switch K1; The signal output end of the PIR interface module is connected to a signal input end of the microprocessor module for receiving a human body sensing signal and processing the human body sensing signal, and the signal input end of the PIR interface module is connected to the signal output end of the human body sensing module; The signal input end of the control signal output module is connected to a signal output end of the microprocessor module to process the control signal output by the microprocessor module. The signal output end of the control signal output module is connected to the control end of the switch K1 to drive the switch K1 to operate. A display module is connected to the signal output terminal of the microprocessor module and is used to display the working status of the control device; The power supply module is connected to the power supply input terminal of the module in the control device that needs power supply, and is used to provide working power for it.

2. The human body sensing control device according to claim 1, characterized in that The microprocessor module includes a STC8G1K08 single chip microcomputer U2.

3. The human body sensing control device according to claim 2, characterized in that: The switch interface module includes a connector JP2, wherein pin 2 of JP2 is grounded, and pin 1 of JP2 is divided into two paths after passing through a reverse diode D1, wherein the first path is connected to a +5V power supply through a resistor R1, and the second path is the output end of the switch interface module, which is connected to pin 7 of U2.

4. The human body sensing control device according to claim 2, characterized in that: The PIR interface module includes a connector JP3, wherein pin 1 of JP3 is connected to a +5V power supply, pin 3 of JP3 is grounded, pin 2 of JP3 is connected to one end of a resistor R9, and the other end of the resistor R9 is divided into two paths, wherein the first path is grounded via a resistor R10, and the second path is connected to the base of a transistor Q3, the emitter of the transistor Q3 is grounded, and the collector of the transistor Q3 is divided into three paths, wherein the first path is grounded via a resistor R7, the second path is connected to a +5V power supply via a resistor R8, and the third path is connected to the base of a transistor Q2; the emitter of the transistor Q2 is grounded, and the collector of the transistor Q2 is divided into two paths, wherein the first path is connected to a +5V power supply via a resistor R6, and the second path is connected to the cathode of a diode D2, and the anode of the diode D2 is divided into two paths, wherein the first path is connected to a +5V power supply via a resistor R4, and the second path is connected to pin 8 of the U2.

5. The human body sensing control device according to claim 2, characterized in that: The control signal output module includes a resistor R2, one end of which is connected to pin 3 of U2, and the other end of which is divided into two paths, the first path is grounded via the resistor R3, and the second path is connected to the gate of the field effect transistor Q1, the drain of the field effect transistor Q1 is grounded, the source of the field effect transistor Q1 is connected to pin 2 of the connector JP3, pin 1 of the connector JP3 is connected to a 12V power supply, and pin 3 of the connector JP3 is grounded.

6. The human body sensing control device according to claim 2, characterized in that: The display module includes a light emitting diode D3, the positive electrode of the light emitting diode D3 is connected to a +5V power supply, and the negative electrode of the light emitting diode D3 is connected to the pin 1 of U2 via a resistor R5.

7. The human body sensing control device according to claim 2, characterized in that: The power module includes a 78L05 power chip U1, pin 1 of U1 is divided into two paths, the first path is grounded via capacitor C1, and the second path is a +5V power output terminal, pin 2 of U1 is grounded, and pin 3 of U1 is divided into three paths, the first path is grounded via capacitor C2, the second path is grounded via capacitor C4, and the third path is connected to the +12V power supply.

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