Human body infrared induction switch device

Abstract

The utility model discloses a human body infrared induction switch device which is characterized by comprising an AC / DC conversion circuit, a DC-DC voltage stabilizing circuit, an infrared signal detection amplification circuit, an ambient light detection circuit, a low power consumption control integrated circuit and a relay control circuit. The AC / DC conversion circuit is connected with the low-power-consumption control integrated circuit through the DC-DC voltage stabilizing circuit; the infrared signal detection amplification circuit and the ambient light detection circuit are connected with the low-power-consumption control integrated circuit; the relay control circuit is connected with the low-power-consumption control integrated circuit; according to the utility model, the accuracy of human body signal acquisition and ambient light elements are comprehensively considered, the anti-interference capability is improved, the accuracy of the action of the inductive switch is effectively improved, and the energy-saving effect is optimized.

Description

TECHNICAL FIELD

[0001] The utility model relates to a human infrared induction switch device belongs to induction switch technical field. BACKGROUND

[0002] Under the current social background of energy saving and emission reduction, the intelligent improvement of public place lighting system is particularly important. Now many places, such as corridor, corridor, parking lot, etc., more and more adopt automatic time delay switch technology. The working principle of this technology is based on the double detection of sensor to environmental light and human movement: when the sensor detects that someone moves and the environmental light is insufficient, the lighting lamp is automatically turned on, and when the personnel leave, the lamp will be automatically turned off after a preset delay time, so as to realize the effective saving of energy.

[0003] However, although the automatic time delay switch technology has shown significant advantages in energy saving, it still faces some technical challenges in practical application. In particular, many existing induction switches have relatively weak anti-interference ability, and lack effective filtering mechanism for external environmental interference factors, especially wind interference. In the environment with strong wind or frequent air flow, the induction switch may trigger the lighting system due to misjudgment of wind movement as human movement, resulting in that the lamp is also wrongly turned on in the state of no one. This not only fails to truly realize the purpose of energy saving, but also may increase energy consumption due to frequent unnecessary lighting, which is contrary to the original intention of technology application. Therefore, how to improve the anti-interference ability of induction switch, especially to effectively filter the interference of wind, has become a technical problem to be solved at present. CONTENT OF THE UTILITY MODEL

[0004] In order to enhance the anti-interference ability of induction switch, the utility model provides a human infrared induction switch device, which comprises: AC / DC conversion circuit, DC-DC voltage stabilizing circuit, infrared signal detection and amplification circuit, environment light detection circuit, low-power control integrated circuit, relay control circuit, the AC / DC conversion circuit is connected with the low-power control integrated circuit through the DC-DC voltage stabilizing circuit, the infrared signal detection and amplification circuit, environment light detection circuit are connected with the low-power control integrated circuit, the relay control circuit is connected with the low-power control integrated circuit,

[0005] The AC / DC conversion circuit converts the human infrared radiation obtained by the pyroelectric sensor into human infrared electric signal, the infrared signal detection and amplification circuit and DC-DC voltage stabilizing circuit amplify the human infrared electric signal and form stable voltage, the low-power control integrated circuit judges according to the human infrared electric signal and environment light, controls the relay control circuit to generate relay control signal.

[0006] In an embodiment, a zero-crossing detection circuit is further included, an input end of the zero-crossing detection circuit is connected with the AC / DC conversion circuit, and an output end of the zero-crossing detection circuit is connected with the low-power consumption control integrated circuit.

[0007] In an embodiment, an auxiliary switch control circuit is further included, an input end of the auxiliary switch control circuit is connected with the AC / DC conversion circuit, and an output end of the auxiliary switch control circuit is connected with the low-power consumption control integrated circuit.

[0008] In an embodiment, the AC / DC conversion circuit includes a PTC temperature fuse resistor TH1, a rectifier diode D8, a rectifier diode D7, a TVS transient voltage suppressor D5, a control chip U2, and a fast recovery diode D6.

[0009] One end of the PTC temperature fuse resistor TH1 is connected with an AC power supply, the other end is connected to a 2-pin of the control chip U2 through the rectifier diode D8, the rectifier diode D7 and an inductor L2 in sequence, a positive electrode of the TVS transient voltage suppressor D5 is grounded, a negative electrode of the TVS transient voltage suppressor D5 is connected with a negative electrode of the rectifier diode D7, a positive electrode of a safety capacitor C38 is connected with the negative electrode of the rectifier diode D7, and a negative electrode of the safety capacitor C38 is grounded, a positive electrode of an electrolytic capacitor C7 is connected with the inductor L2, and a negative electrode of the electrolytic capacitor C7 is grounded, a 1-pin of the control chip U2 is connected with a negative electrode of the fast recovery diode D6, a 3-pin of the control chip U2 is connected with a capacitor C5, a resistor R9 and a resistor R8, a 4-pin of the control chip U2 is connected with a negative electrode of the fast recovery diode D6, a 5-pin of the control chip U2 is connected with the negative electrode of the fast recovery diode D6 through a capacitor C8, and a positive electrode of the fast recovery diode D6 is grounded.

[0010] One end of the resistor R8 is connected with a negative electrode of a diode D4, the other end of the resistor R8 is connected with the resistor R9, the capacitor C4 is connected across the resistor R9 and the resistor R8, a positive electrode of the diode D4 is connected with one end of an inductor L1, the other end of the inductor L1 is connected with a negative electrode of the fast recovery diode D6, and an electrolytic capacitor C37 is connected across the inductor L1 and the positive electrode of the fast recovery diode D6.

[0011] In an embodiment, the DC-DC voltage stabilizing circuit includes a control chip U1, a capacitor C1, a capacitor C2, a capacitor C3, a resistor R5 and a resistor R6.

[0012] A 5-pin of the control chip U1 is connected with a positive electrode of the capacitor C3, a positive electrode of the capacitor C2 and a 4-pin of the control chip U1 in sequence, a 3-pin of the control chip U1 is grounded, a 1-pin of the control chip U1 is connected with the resistor R6 and the resistor R5, the other end of the resistor R6 is grounded, and a 2-pin of the control chip U1 is connected with the resistor R5 and a power supply.

[0013] In an embodiment, the ambient light detection circuit comprises an ambient light sensor DE1, a resistor R53, a resistor R1, a resistor R2, a capacitor C36;

[0014] The 1 pin of the ambient light sensor DE1 is connected to the positive pole of the capacitor C36 and the power supply 3.3V, and the negative pole of the capacitor C36 is connected to the 2 pin, 3 pin and system GND of the ambient light sensor DE1;

[0015] The 4 pin of the ambient light sensor DE1 is connected to the SCL signal of the low-power integrated control circuit, the 5 pin is connected to the resistor R53, and the other pin of the resistor R53 is connected to the power supply 3.3V; the 6 pin of the ambient light sensor DE1 is connected to the SDA signal of the low-power integrated control circuit, and the SDA signal and SCL signal input end are respectively provided with pull-up resistors R1 and R2.

[0016] In an embodiment, the zero-crossing detection circuit comprises a resistor R32, a resistor R31, a resistor R29, a diode D10, a transistor T1, and a capacitor C9.

[0017] One end of the resistor R32 is connected to the power supply, and the other end is connected to the resistor R31; the negative pole of the diode D10, the first end of the resistor R29, and the first end of the capacitor C9 are connected to the other end of the resistor R31 and the G pole of the transistor T1; the positive pole of the diode D10, the second end of the resistor R29, and the second end of the capacitor C9 are grounded; the E pole of the transistor T1 is grounded, and the C pole is connected to the PHADE-SYNCHRO signal of the low-power integrated control circuit.

[0018] In an embodiment, the relay control circuit comprises a relay RY1, a diode D12, a capacitor C18, and a transistor T4.

[0019] The contacts of the relay RY1 are connected to the firewire L and the 2 pin of the terminal J1, respectively; the coil of the relay is connected to the power supply 12V, the positive pole of the diode D12, and the positive pole of the capacitor C18; the C pole of the transistor T4 is connected to the coil of the relay RY1 and the negative pole of the diode D12; the E pole of the transistor is connected to the 12 pin relay control signal PHASE-COUPEE of the MCU chip U3; and the G pole of the transistor is connected to the system GND.

[0020] In an embodiment, the low-power control integrated circuit comprises an MCU chip U3.

[0021] The MCU chip U3 has the following pin connections: pin 1 is connected to the SDA signal, pin 2 is connected to the AUX signal, pin 3 is connected to the positive terminals of capacitors C11 and C10 and the 3.3V power supply, pin 4 is connected to the negative terminals of capacitors C11 and C10 and the system GND, pin 5 is connected to the reset signal RST, pin 7 is connected to the PIR signal, pin 10 is connected to LED-G, pin 11 is connected to LED-R, pin 12 is connected to the relay control signal PHASE-COUPEE, pin 13 is connected to LED-B, pin 16 is connected to PHASE-SYNCHRO, pin 18 is connected to TRIMMER-LUX, pin 19 is connected to TRIMMER-TEMPO, pin 20 is connected to the DIO signal, pin 21 is connected to the CLK signal, pin 26 is connected to the SCL signal, and pin 27 is connected to the IR-RECEVER signal.

[0022] Advantages of this utility model:

[0023] The human infrared sensor switch device provided by this utility model determines whether there is a person in the environment by collecting human infrared radiation signals. By combining an AC / DC conversion circuit, a DC-DC voltage regulator circuit, and an infrared signal detection and amplification circuit to filter and amplify the infrared signal, a stable infrared voltage signal can be obtained. The collected human infrared signal is judged by an MCU chip, and the ambient light is collected by an ambient light detection circuit to determine whether the switch should be turned on. Compared with existing sensor switches, this utility model comprehensively considers the accuracy of human signal collection and ambient light factors, improves anti-interference ability, effectively improves the accuracy of sensor switch action, and optimizes energy saving effect.

[0024] In addition, to extend the lifespan of the relay, a zero-crossing detection circuit for AC voltage can be installed. The control signal to open the relay will close the contacts at the zero-crossing point of the AC voltage, reducing contact arcing and extending the relay's lifespan. A detection circuit for the auxiliary switch can also be installed, enabling manual opening and automatic closing of the switching device. Attached Figure Description

[0025] Figure 1 This is a structural block diagram of the human body infrared sensing switch device of this utility model.

[0026] Figure 2 This is a circuit diagram of the AC / DC conversion in Embodiment 1 of this utility model.

[0027] Figure 3 This is a diagram of the DC-DC voltage regulator circuit in Embodiment 1 of this utility model.

[0028] Figure 4 This is a circuit diagram of the infrared signal detection and amplification circuit in Embodiment 1 of this utility model.

[0029] Figure 5 The environment light detection circuit diagram in the embodiment 1 of the utility model.

[0030] Figure 6 The zero-crossing detection circuit in the embodiment 1 of the utility model.

[0031] Figure 7 The auxiliary switch control circuit in the embodiment 1 of the utility model.

[0032] Figure 8 The low-power control integrated circuit in the embodiment 1 of the utility model.

[0033] Figure 9 The relay control circuit in the embodiment 1 of the utility model. DETAILED DESCRIPTION

[0034] The utility model is specifically described as follows.

[0035] Embodiment 1:

[0036] As Figure 1 The utility model relates to a human infrared induction switch device structure block diagram, including: AC / DC conversion circuit, DC-DC voltage stabilizing circuit, infrared signal detection amplification circuit, environment light detection circuit, parameter setting circuit, zero-crossing detection circuit, auxiliary switch control circuit, low-power control integrated circuit, relay control circuit, remote control receiver circuit.

[0037] Among them, the structure of AC / DC conversion circuit is as shown in Figure 2As shown, by PTC temperature fuse resistor TH1, rectifier diode D8 and D7, TVS transient suppression diode D5, capacitor, inductor, control chip U2, fast recovery diode D6, etc. Among them, PTC temperature fuse resistor TH1 is connected with AC input live wire L and rectifier diode D8, the negative pole of D8 is connected with the positive pole of D7, the negative pole of D7 is connected with the positive pole of TVS transient suppression diode D5, the positive pole of safety capacitor C38 and inductor L2, the negative pole of D5 and C38 is connected with the GND of system, the GND of system is connected with AC input neutral wire N. The other end of inductor L2 is connected with the 2 pin of control chip U2 and electrolytic capacitor C7, the negative pole of electrolytic capacitor C7 is connected with the GND of system. The 5 pin of control chip U2 is connected with the positive pole of capacitor C8, the negative pole of C8 is connected with the 1 pin of U2, the 4 pin of U2, the positive pole of fast recovery diode D6, the negative pole of capacitor C5, resistor R9, the negative pole of capacitor C4 and the input end of inductor L1. The negative pole of fast recovery diode D6 is connected with the GND of system, the 3 pin of control chip U2 is connected with the positive pole of C5, resistor R9 and resistor R8. Resistor R8 is connected with the negative pole of diode D4 and the positive pole of capacitor C4; the positive pole of diode D4 is connected with the output end of inductor L1 and the positive pole of electrolytic capacitor C37; the negative pole of electrolytic capacitor C37 is connected with the GND of system, and the positive pole of electrolytic capacitor C37 has a stable voltage of 12V.

[0038] The structure of DC-DC voltage stabilizing circuit is shown in Figure 3 Some resistors, capacitors and control chip U1, etc. Among them, the 5 pin of control chip U1 is connected with the positive pole of capacitor C3 and the positive pole of capacitor C2 and the 4 pin of control chip U1. The 3 pin of U1 is connected with the GND of system, the 1 pin of U1 is connected with resistor R6 and R5, the other end of R6 is connected with the GND of system. The 2 pin of U1 is connected with the other end of R5 to stabilize the output voltage of 3.3V.

[0039] The infrared signal detection amplification circuit is composed of PIR sensor DE3, operational amplifier chip U4, resistor, capacitor and the like. The 3-pin of PIR sensor DE3 is connected with the positive pole of resistor R71, capacitor C27, capacitor C26 and capacitor C25 at the same time, and the other end of resistor R71 is connected with power supply 3.3V. The negative pole of capacitor C27, capacitor C26 and capacitor C25 is connected with system GND at the same time. The 2-pin of PIR sensor DE3 is connected with system GND; the 1-pin of PIR sensor DE3 is connected with the positive pole of capacitor C35 and resistor R74 at the same time. The negative pole of capacitor C35 is connected with system GND, and the other end of resistor R74 is connected with the positive pole of resistor R73, capacitor C32, capacitor C23 and the 3-pin of operational amplifier U4 at the same time; the negative pole of capacitor C32 and the other end of resistor R73 are connected with system GND at the same time. The 2-pin of operational amplifier U4 is connected with the negative pole of capacitor C23, resistor R69, the positive pole of capacitor C22 and resistor R68 at the same time. The other end of resistor R69 is connected with the positive pole of capacitor C28, and the negative pole of capacitor C28 is connected with system GND. The 1-pin of operational amplifier U4 is connected with the other end of resistor R68, the negative pole of C22 and the negative pole of C24 at the same time; the positive pole of C24 is connected with resistor R70. The other end of resistor R70 is connected with the negative pole of capacitor C21, the 6-pin of operational amplifier U4, the positive pole of capacitor C20 and resistor R65 at the same time; the 7-pin of operational amplifier U4 is connected with the other pin of resistor R65, the negative pole of capacitor C20 and resistor R67 at the same time; the 5-pin of operational amplifier U4 is connected with the positive pole of capacitor C21, the positive pole of capacitor C30, resistor R72 and resistor R66 at the same time; the negative pole of capacitor C30 and the other end of resistor R72 are connected with system GND at the same time; the other end of resistor R66 is connected with power supply 3.3V. The 4-pin of operational amplifier U4 is connected with system GND. The 8-pin of operational amplifier U4 is connected with the positive pole of capacitor C33, the positive pole of capacitor C31 and power supply 3.3V at the same time; the negative pole of capacitor C33 and the negative pole of capacitor C31 are connected with system GND at the same time. The other end of resistor R67 is connected with the positive pole of capacitor C29 at the same time to output PIR signal. The negative pole of capacitor C29 is connected with system GND.

[0040] The structure of ambient light detection circuit is shown in Figure 5 ambient light sensor DE1, resistor, capacitor and the like. The 1-pin of ambient light sensor DE1 is connected with the positive pole of capacitor C36 and power supply 3.3V at the same time, and the negative pole of capacitor C36 is connected with the 2-pin, 3-pin of DE1 and system GND at the same time. The 4-pin of DE1 is connected with SCL signal of low-power integrated control circuit, the 5-pin of DE1 is connected with resistor R53, and the other pin of resistor R53 is connected with power supply 3.3V. The 6-pin of DE1 is connected with SDA signal of low-power integrated control circuit, and two pull-up resistors R1 and R2 are needed to be added on SDA and SCL respectively.

[0041] The structure of the zero-crossing detection circuit is shown in Figure 6 Fig. 2, which is composed of resistors, diodes, transistors, capacitors, etc. The resistor R32 is connected to the live wire L, the other end of the resistor R32 is connected to the resistor R31, the other end of the resistor R31 is connected to the positive pole of the resistor R29, the positive pole of the capacitor C9 and the G pole of the transistor T1. The other end of the resistor R29 is connected to the system GND, the negative pole of the diode D10, the negative pole of the capacitor C9 and the E pole of the transistor T1. The C pole of the transistor T1 is connected to the PHADE-SYNCHRO signal of the low-power integrated control circuit.

[0042] The structure of the auxiliary switch control circuit is shown in Figure 7 Fig. 3, which is composed of rectifier diode D11, resistors, capacitors, transistor T2, MOSFET transistor T3, etc. The negative pole of the rectifier diode D11 is connected to the live wire L, the positive pole of the rectifier diode D11 is connected to the positive pole of the capacitor C13 and the resistor R33; the other end of the resistor R33 is connected to the resistor R30, the other end of the resistor R30 is connected to the resistor R37 and the E pole of the transistor T2. The C pole of the transistor T2 is connected to the power supply 12V, the E pole of the transistor T2 is connected to the resistor R38, the capacitor C12 and the G pole of the transistor T3, the S pole of the transistor T3 is connected to the negative pole of the capacitor C12, the resistor R38, the resistor R37 and the system GND. The D pole of the transistor T3 is connected to the AUX signal of the low-power integrated control circuit.

[0043] The structure of the relay control circuit is shown in Figure 9 Fig. 4, which is composed of the relay RY1, diode D12, capacitor C18, transistor T4, etc. The contacts of the relay RY1 are connected to the live wire L and the 2-pin of the terminal J1, respectively, the coil of the relay is connected to the power supply 12V, the positive pole of the diode D12 and the positive pole of the capacitor C18, the C pole of the transistor T4 is connected to the coil of the relay RY1 and the negative pole of the diode D12, the E pole of the transistor is connected to the 12-pin relay control signal PHASE-COUPEE of the MCU chip U3, and the G pole of the transistor is connected to the system GND.

[0044] The structure of the low-power control integrated circuit is shown in Figure 8As shown, by MCU chip U3 and capacitor group. Among them, the 1 pin of MCU chip U3 is connected with SDA signal, the 2 pin of U3 is connected with AUX signal, the 3 pin of U3 is connected with the positive pole of capacitor C11, C10 and power supply 3.3V, the 4 pin of U3 is connected with the negative pole of C11, C10 and system GND;The 5 pin of U3 is connected with reset signal RST;The 7 pin of U3 is connected with PIR signal;The 10 pin of U3 is connected with LED-G;The 11 pin of U3 is connected with LED-R;The 12 pin of U3 is connected with relay control signal PHASE-COUPEE;The 13 pin of U3 is connected with LED-B;The 16 pin of U3 is connected with PHASE-SYNCHRO;The 18 pin of U3 is connected with TRIMMER-LUX;The 19 pin of U3 is connected with TRIMMER-TEMPO;The 20 pin of U3 is connected with DIO signal, the 21 pin of U3 is connected with CLK signal, the 26 pin of U3 is connected with SCL signal, and the 27 pin of U3 is connected with IR-RECEVER signal.

[0045] The working principle of the utility model:

[0046] When the pyroelectric sensor in the switch device senses the infrared radiation of the human body, it will be converted into an electric signal, and the electric signal will be amplified and band-pass filtered by the circuit, and converted into a stable and effective voltage. The function of the infrared signal detection amplification circuit is to eliminate interference signals and improve the accuracy and reliability of the human infrared model. The processed human infrared signal is sent to the integrated control chip MCU, and the integrated control chip MCU judges. When the voltage amplitude exceeds 0.24V and the time exceeds 40ms, the signal is an effective signal. The MCU reads the current ambient light, and when the detected ambient light is less than the set value, the MCU will send a control signal to open the relay. In order to prolong the service life of the relay, there is an AC voltage zero-crossing detection circuit in the device. The control signal for opening the relay will close the contact at the zero-crossing point of the AC voltage, reducing the arc and prolonging the service life of the relay. The device also has an auxiliary switch detection circuit, which can realize the function of manual opening and automatic closing of the switch device.

[0047] Although the utility model has disclosed as above with preferable embodiments, it is not used to limit the utility model, anyone familiar with this technology can make various changes and modifications without departing from the spirit and scope of the utility model, therefore the protection scope of the utility model should be limited by the claims.

Claims

1. A human infrared sensing switch device, characterized by, The device comprises an AC / DC conversion circuit, a DC-DC voltage stabilizing circuit, an infrared signal detection and amplification circuit, an ambient light detection circuit, a low-power control integrated circuit, and a relay control circuit; the AC / DC conversion circuit is connected with the low-power control integrated circuit through the DC-DC voltage stabilizing circuit; the infrared signal detection and amplification circuit and the ambient light detection circuit are connected with the low-power control integrated circuit; and the relay control circuit is connected with the low-power control integrated circuit. The AC / DC conversion circuit converts the human body infrared radiation obtained by a pyroelectric sensor into a human body infrared electric signal; the infrared signal detection and amplification circuit and the DC-DC voltage stabilizing circuit amplify the human body infrared electric signal and form a stable voltage; and the low-power control integrated circuit judges according to the human body infrared electric signal and the ambient light to control the relay control circuit to generate a relay control signal.

2. The human infrared sensing switch device of claim 1, wherein, A zero-crossing detection circuit is further included, with an input end connected with the AC / DC conversion circuit and an output end connected with the low-power control integrated circuit.

3. The human infrared sensing switch device of claim 1, wherein, An auxiliary switch control circuit is further included, with an input end connected with the AC / DC conversion circuit and an output end connected with the low-power control integrated circuit.

4. The human infrared sensing switch device of claim 1, wherein, The AC / DC conversion circuit comprises a PTC temperature fuse resistor TH1, a rectifier diode D8, a rectifier diode D7, a TVS transient voltage suppressor D5, a control chip U2, and a fast recovery diode D6. One end of the PTC temperature fuse resistor TH1 is connected with an alternating current power supply, and the other end is connected to the 2-pin of the control chip U2 through the rectifier diode D8, the rectifier diode D7, and an inductor L2 in sequence; the positive pole of the TVS transient voltage suppressor D5 is grounded, and the negative pole is connected with the negative pole of the rectifier diode D7; the positive pole of an approval capacitor C38 is connected with the negative pole of the rectifier diode D7, and the negative pole is grounded; the positive pole of an electrolytic capacitor C7 is connected with the inductor L2, and the negative pole is grounded; the 1-pin of the control chip U2 is connected with the negative pole of the fast recovery diode D6; the 3-pin of the control chip U2 is connected with a capacitor C5, a resistor R9, and a resistor R8; the 4-pin of the control chip U2 is connected with the negative pole of the fast recovery diode D6; the 5-pin of the control chip U2 is connected with the negative pole of the fast recovery diode D6 through a capacitor C8; and the positive pole of the fast recovery diode D6 is grounded. One end of the resistor R8 is connected with the negative pole of a diode D4, the other end is connected with the resistor R9, and a capacitor C4 is connected in parallel across the resistor R9 and the resistor R8; the positive pole of the diode D4 is connected with one end of an inductor L1, and the other end of the inductor L1 is connected with the negative pole of the fast recovery diode D6; and an electrolytic capacitor C37 is connected in parallel across the inductor L1 and the positive pole of the fast recovery diode D6.

5. The human infrared sensing switch device of claim 1, wherein, The DC-DC voltage stabilizing circuit comprises a control chip U1, capacitors C1, C2, and C3, a resistor R5, and a resistor R6. The 5-pin of the control chip U1 is connected with the positive pole of the capacitor C3, the positive pole of the capacitor C2 and the 4-pin of the control chip U1; the 3-pin of the control chip U1 is grounded; the 1-pin of the control chip U1 is connected with the resistor R6 and the resistor R5, and the other end of the resistor R6 is grounded; the 2-pin of the control chip U1 is connected with the resistor R5 and the power supply.

6. The human infrared sensing switch device of claim 1, wherein, The ambient light detection circuit comprises an ambient light sensor DE1, a resistor R53, a resistor R1, a resistor R2 and a capacitor C36. The 1-pin of the ambient light sensor DE1 is connected with the positive pole of the capacitor C36 and the power supply 3.3V, and the negative pole of the capacitor C36 is connected with the 2-pin, the 3-pin of the ambient light sensor DE1 and the system GND; The 4-pin of the ambient light sensor DE1 is connected with the SCL signal of the low-power integrated control circuit, the 5-pin is connected with the resistor R53, the other pin of the resistor R53 is connected with the power supply 3.3V; the 6-pin of the ambient light sensor DE1 is connected with the SDA signal of the low-power integrated control circuit, and the SDA signal and the SCL signal input end are respectively provided with pull-up resistors R1 and R2.

7. The human infrared sensing switch device of claim 2, wherein, The zero-crossing detection circuit comprises a resistor R32, a resistor R31, a resistor R29, a diode D10, a triode T1 and a capacitor C9. One end of the resistor R32 is connected with the power supply, and the other end is connected with the resistor R31; the negative pole of the diode D10, the first end of the resistor R29 and the first end of the capacitor C9 are connected with the other end of the resistor R31 and the G pole of the triode T1; the positive pole of the diode D10, the second end of the resistor R29 and the second end of the capacitor C9 are grounded; the E pole of the triode T1 is grounded, and the C pole is connected with the PHADE-SYNCHRO signal of the low-power integrated control circuit.

8. The human infrared sensing switch device of claim 1, wherein, The relay control circuit comprises a relay RY1, a diode D12, a capacitor C18 and a triode T4. The contacts of the relay RY1 are connected with the firewire L and the 2-pin of the terminal J1 respectively, the coil of the relay is connected with the power supply 12V, the positive pole of the diode D12 and the positive pole of the capacitor C18 simultaneously, the C pole of the triode T4 is connected with the coil of the relay RY1 and the negative pole of the diode D12 simultaneously, the E pole of the triode is connected with the 12-pin relay control signal PHASE-COUPEE of the MCU chip U3, and the G pole of the triode is connected with the system GND.

9. The human infrared sensing switch device of claim 1, wherein, The low-power control integrated circuit comprises an MCU chip U3. The 1st pin of the MCU chip U3 is connected with SDA signal, the 2nd pin is connected with AUX signal, the 3rd pin is connected with the positive pole of capacitor C11 and capacitor C10 and power supply 3.3V, the 4th pin is connected with the negative pole of capacitor C11 and capacitor C10 and system GND, the 5th pin is connected with reset signal RST, the 7th pin is connected with PIR signal, the 10th pin is connected with LED-G, the 11th pin is connected with LED-R, the 12th pin is connected with relay control signal PHASE-COUPEE, the 13th pin is connected with LED-B, the 16th pin is connected with PHASE-SYNCHRO, the 18th pin is connected with TRIMMER-LUX, the 19th pin is connected with TRIMMER-TEMPO, the 20th pin is connected with DIO signal, the 21st pin is connected with CLK signal, the 26th pin is connected with SCL signal, and the 27th pin is connected with IR-RECEVER signal.

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