Multi-signal fusion LED lamp switch intelligent control system

Abstract

The utility model discloses a multi-signal fusion LED lamp switch intelligent control system, which belongs to the technical field of intelligent illumination, and comprises an electric control module and an environment detection module, the electric control module comprises a single chip microcomputer control module, a power supply module, a working mode change-over switch, a manual switch and a relay; the single-chip microcomputer control module comprises a single-chip microcomputer U1, a crystal oscillator circuit and a reset circuit. A light on-off control program is stored in the single-chip microcomputer U1. The environment detection module comprises a human body induction module and an environment light detection module. The environment light detection module comprises an ultraviolet sensor P2 and a voltage comparison circuit. According to the utility model, the electric control module and the environment detection module are used for detecting the existence of indoor personnel and the intensity of ambient light to intelligently control the on-off of indoor LED light, the ambient light and the LED light can be automatically identified, the mutual interference of LED light sources is avoided, the automatic control of the light is more accurate, the mode change-over switch is arranged, a user can select a manual mode to decide the on-off of the light by himself / herself, and the user experience is improved. The use flexibility is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of intelligent lighting, and in particular relates to a multi-signal fusion LED light switch intelligent control system. Background Art

[0002] With the development of social economy and science and technology, people's living standards have improved and energy consumption has continued to increase. Electricity, as an indispensable energy source for industrial production and people's lives, accounts for about 35% of terminal energy consumption. At present, lighting in most scenes is still managed manually. However, with the increase in lighting demand, manual management becomes more difficult. Poor lighting management will lead to huge waste of electricity, especially when there is no one turning on the lights indoors during the day. Therefore, lamps need to be able to automatically turn on and off according to the brightness of natural light in the environment and the presence of people in the room.

[0003] The existing technology usually uses voice control or light control to control the operation of lamps. Voice control is easily disturbed by external sounds, which may cause the lights to be turned on even when no one is in the room. Common light-controlled lamps are controlled by adding a photosensitive device at the input end, such as a photoresistor or a photosensitive field-effect transistor, to sense the ambient illumination, thereby controlling the switch at the input end to control the switch of the lamp.

[0004] However, in some large public places, multiple lamps are used at the same time, and these photosensitive devices are often unable to eliminate the light of their own lamps and the light of several similar lamps, which can easily cause their own light to extinguish themselves. Two or more photosensitive lamps are installed in close locations, such as on both sides of a door, which can easily extinguish other lamps. At the same time, the photosensitive devices at the input end are expensive, and the installation position is difficult to grasp. In addition, this type of controller uses a single parameter to control the light, and cannot fully detect factors in the environment, resulting in low control accuracy. In addition, the control method is fixed, and users cannot flexibly choose control strategies according to their own needs, resulting in low control flexibility. Utility Model Content

[0005] The utility model aims to overcome the problems of low intelligent control precision and inability to flexibly select control strategies of existing LED light switches, and provides a multi-signal fusion LED light switch intelligent control system.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A multi-signal fusion LED light switch intelligent control system includes an electric control module and an environmental detection module, which are arranged inside an installation shell; the electric control module includes a single-chip control module, a power module, a working mode switching switch, a manual switch and a relay; the single-chip control module includes a single-chip U1, a crystal oscillator circuit and a reset circuit; the single-chip U1 internally stores a light switch control program; the crystal oscillator circuit is connected to the single-chip U1 and the reset circuit respectively, the power module is connected to the single-chip U1 and the working mode switching switch respectively, the relay is connected between the working mode switching switch and the power module, and the relay is connected to the manual switch;

[0008] The environment detection module includes a human body sensing module and an ambient light detection module. The human body sensing module includes a human body infrared sensor P1, which is respectively connected to the power module and the single-chip computer U1. The ambient light detection module includes an ultraviolet sensor P2 and a voltage comparison circuit, which is respectively connected to the power module and the voltage comparison circuit.

[0009] Furthermore, one end of the crystal oscillator circuit is respectively connected to pin 18 and pin 19 of the microcontroller U1, the other end of the crystal oscillator circuit is connected to one end of resistor R4, the other end of resistor R4 is respectively connected to pin 9 of the microcontroller U1 and the reset circuit, pin 40 of the microcontroller U1 is connected to the positive pole of the power module, pin 20 of the microcontroller U1 is connected to the negative pole of the power module, one end of the working mode switching switch is connected to the positive pole of the power module, and the other end of the working mode switching switch is connected to the negative pole of the power module.

[0010] Furthermore, the crystal oscillator circuit is composed of a second capacitor C2, a third capacitor C3 and a crystal oscillator Y1; one end of the second capacitor C2 is connected to one end of the third capacitor C3, the other end of the second capacitor C2 is connected to the other end of the third capacitor C3, the second capacitor C2 and the third capacitor C3 form a parallel capacitor, and the crystal oscillator Y1 is connected between one end of the second capacitor C2 and one end of the third capacitor C3; one end of the crystal oscillator Y1 is connected to pin 18 of the microcontroller U1, the other end of the crystal oscillator Y1 is connected to pin 19 of the microcontroller U1, and the other end of the parallel capacitor is connected to one end of the fourth resistor R4.

[0011] Furthermore, the reset circuit is provided with a reset switch S1, one end of the reset switch S1 is connected to the positive pole of the power module, the other end of the reset switch S1 is connected to pin 9 of the microcontroller U1, a first capacitor C1 is connected between one end of the reset switch S1 and the other end of the reset switch S1, and pin 9 of the microcontroller U1 is the RST end.

[0012] Further, the human infrared sensor P1 is provided with a power pin and an output pin, the positive pole of the power pin of the human infrared sensor P1 is connected to the positive pole of the power module, the negative pole of the power pin of the human infrared sensor P1 is connected to the negative pole of the power module, and the output pin of the human infrared sensor P1 is connected to pin 7 of the single-chip computer U1;

[0013] The ultraviolet sensor P2 is provided with a power pin and an output pin, the positive pole of the power pin of the ultraviolet sensor P2 is connected to the positive pole of the power module, the negative pole of the power pin of the ultraviolet sensor P2 is connected to the negative pole of the power module, and the output pin of the ultraviolet sensor P2 is connected to the voltage comparison circuit;

[0014] The positive electrode of the power pin of the human infrared sensor P1 is connected to the positive electrode of the light emitting diode D2, the negative electrode of the light emitting diode D2 is connected to the pin 6 of the single chip computer U1, and the first resistor R1 is connected between the negative electrode of the light emitting diode D2 and the pin 6 of the single chip computer U1;

[0015] When a human body enters the detection range, the light-emitting diode D2 lights up, and when a human body leaves the detection range, the light-emitting diode D2 goes out.

[0016] Further, the working mode switching switch is a mode switching switch S2, the relay includes a relay K1 and a relay K2, one end of the mode switching switch S2 is respectively connected to the positive electrode of the power module and the pin A1 of the relay K1, one end of the fifth resistor R5 is connected between one end of the mode switching switch S2 and the pin A1 of the relay K1, the other end of the fifth resistor R5 is connected to the pin 14 of the single-chip computer U1, the pin A2 of the relay K1 is connected to the negative electrode of the power module, and the pin COM of the relay K1 is connected to the live wire;

[0017] The pin NC of the relay K1 is connected to the pin COM of the relay K2, the pin NO of the relay K1 is connected to one end of the manual switch, a lamp is connected between the pin NO of the relay K1 and one end of the manual switch, and the other end of the manual switch is connected to the pin NO of the relay K2;

[0018] Pin A1 of relay K2 is connected to the other end of the mode switching switch S2, pin A2 of relay K2 is connected to the negative pole of the power module, and pin NO of relay K2 is connected to the lamp through the manual switch;

[0019] When the mode switching switch S2 is turned off, it is in automatic mode, relay K1 is in normally open state, relay K2 is connected to the room power, and the single-chip microcomputer U1 controls relay K2 to automatically control the light on and off of the lamp. When the mode switching switch S2 is started, relay K2 is energized, the manual switch is connected to the room power, and the light on and off of the lamp is controlled by the manual switch.

[0020] Furthermore, the power module includes an AC / DC isolation buck chip P3 and a light emitting diode D1, the input pins of the AC / DC isolation buck chip P3 are respectively connected to the live wire and the neutral wire, the positive electrode of the output pin of the AC / DC isolation buck chip P3 is connected to the pin 40 of the single-chip computer U1, and the negative electrode of the output pin of the AC / DC isolation buck chip P3 is connected to the pin 20 of the single-chip computer U1;

[0021] The positive electrode of the reflective diode D1 is connected to the positive electrode of the output pin of the AC / DC isolation buck chip P3, and the negative electrode of the reflective diode D1 is connected to the negative electrode of the output pin of the AC / DC isolation buck chip P3.

[0022] Furthermore, the voltage comparison circuit includes a voltage comparator U2, a sliding resistor R3 and a second resistor R2, one end of the sliding resistor R3 is connected to one end of the second resistor R2, the other end of the second resistor R2 is connected to the positive electrode of the power module, the other end of the sliding resistor R3 is connected to the negative electrode of the power module, pin 8 of the voltage comparator U2 is connected to the positive electrode of the power module, pin 4 of the voltage comparator U2 is connected to the negative electrode of the power module, pin 3 of the voltage comparator U2 is connected to the output pin of the ultraviolet sensor P2, pin 2 of the voltage comparator U2 is connected to the sliding end of the sliding resistor R3, and pin 1 of the voltage comparator U2 is connected to pin 1 of the microcontroller U1.

[0023] Furthermore, the single-chip microcomputer U1 is a STC89C51 single-chip microcomputer, the human infrared sensor P1 is a HC-SR501 human infrared sensor, the ultraviolet sensor P2 is a CJMCU-GUVA-S12SD ultraviolet sensor, the voltage comparator U2 is a LM393 voltage comparator, and the AC / DC isolation buck chip P3 is an AM11-5W05VAC / DC isolation buck chip.

[0024] Furthermore, a mounting hole is provided on the mounting shell for assembling the human body sensing module and the ambient light detection module.

[0025] Compared with the prior art, the utility model has the following beneficial technical effects:

[0026] The utility model proposes a multi-signal fusion LED light switch intelligent control system, which utilizes the electronic control module and the environmental detection module to intelligently identify and detect the presence of people in the room and the ambient light intensity, realizes intelligent judgment and control according to the preset algorithm program, and intelligently controls the switching of indoor LED lights, greatly reducing the problem of lighting electricity waste, thereby improving the intelligence level of the system, making indoor lighting control more intelligent and automated, and reducing the difficulty of turning on lights in the dark at night. The utility model can automatically identify ambient light and LED light, avoid mutual interference between LED light sources, and make the automatic lighting control more accurate. By setting the mode switching switch, the user can choose the manual mode to decide the light switching by himself, thereby improving the flexibility of use. The utility model can detect the presence of human body and the ambient light intensity.

[0027] Furthermore, a manual mode is set, and users can manually turn the lights on or off as needed, thereby meeting the lighting control needs in different situations and improving the flexibility and user-friendliness of the system.

[0028] Furthermore, the modular structure design makes the system clear and easy to maintain and expand. At the same time, the modular structure also enhances the versatility of the system, making it easier to improve and adapt to the needs of different scenarios.

[0029] Furthermore, it can distinguish between ambient light and other lights, avoid mutual interference between different light sources, accurately detect the actual ambient light intensity, and control it more precisely.

[0030] The utility model only needs to be simply modified on the basis of the original lighting system, is easy to install, has reasonable price for components, and has reasonable overall cost performance of the system, which is conducive to promotion and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The drawings in the specification are used to provide further understanding of the present invention and constitute a part of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0032] Figure 1 The utility model is a schematic diagram of the main circuit of a multi-signal fusion LED light switch intelligent control system.

[0033] Figure 2 The utility model is a schematic diagram of a single-chip control module circuit of a multi-signal fusion LED light switch intelligent control system.

[0034] Figure 3 The utility model is a schematic diagram of a power module circuit of a multi-signal fusion LED light switch intelligent control system.

[0035] Figure 4The utility model is a schematic diagram of a working mode switching module circuit of a multi-signal fusion LED light switch intelligent control system.

[0036] Figure 5 The utility model is a schematic diagram of a human body detection module circuit of a multi-signal fusion LED light switch intelligent control system.

[0037] Figure 6 The utility model is a schematic diagram of an ambient light detection module circuit of a multi-signal fusion LED light switch intelligent control system. DETAILED DESCRIPTION

[0038] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0039] It should be noted that the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0040] Example

[0041] like Figure 1 As shown, the embodiment provides a multi-signal fusion LED light switch intelligent control system, including an electric control module, an environmental detection module and an installation shell, wherein the electric control module and the environmental sensing module are arranged in the installation shell. The electric control module includes a single-chip control module, a power module, a working mode switching switch, a manual switch and two relays.

[0042] like Figure 2As shown, the single-chip microcomputer control module includes a single-chip microcomputer U1, a crystal oscillator circuit and a reset circuit. The single-chip microcomputer U1 is provided with 40 pins No. 1-40, and the light switching control program is stored internally. The crystal oscillator circuit is composed of capacitors C2, C3 and crystal oscillator Y1. The capacitors C2 and C3 are connected in parallel and are respectively connected to the No. 18 and No. 19 pins of the single-chip microcomputer. The crystal oscillator Y1 is connected to the No. 18 and No. 19 pins of the single-chip microcomputer. The crystal oscillator circuit provides a clock pulse signal for the single-chip microcomputer U1. The single-chip microcomputer U1 and the crystal oscillator circuit constitute the single-chip microcomputer minimum system. The reset circuit is provided with a reset switch S1. The two ends of the reset switch S1 are respectively connected to the positive pole of the power module and the pin 9 of the single-chip microcomputer U1. The RST end of the single-chip microcomputer is connected to the power supply VCC to realize reset.

[0043] like Figure 3 As shown, the power module includes an AC / DC isolation buck chip P3 and a light emitting diode D1. The input pins of the AC / DC isolation buck chip P3 are connected to the live wire and the neutral wire respectively, and the positive and negative poles of the output pins are connected to the 40 and 20 pins of the microcontroller respectively. The reflective diode D1 is connected to the positive and negative poles of the chip. The chip converts 220V AC power into 5V DC power to power the entire system. When the power supply is normal, the light emitting diode D1 lights up.

[0044] like Figure 4 As shown, one end of the mode switching switch S2 is connected to the positive pole of the power module, and the other end is linearly connected to the A1 pin of the relay K1, the A2 pin of the relay K1 is connected to the negative pole of the power module, the COM pin is connected to the live wire, the NC pin is connected to the COM pin of the relay K2, the NO pin is connected to the manual switch, the manual switch is connected to the lamp, the NC pin of the relay K2 is connected to the No. 14 pin of the single-chip microcomputer, the A2 pin is connected to the negative pole of the power module, and the NO pin is connected to the lamp. When the mode switching switch is not pressed, the default is automatic mode, the relay K1 is in the normally open state, the relay K2 is connected to the room power, and the relay K2 is controlled by the single-chip microcomputer to attract and control the light to turn on and off. When the mode switching switch is pressed, the relay K2 is attracted, the manual switch is connected to the room power, and the light is controlled to turn on and off by the manual switch.

[0045] The environment detection module includes a human body sensing module and an ambient light detection module. Figure 5 As shown, the human body sensing module includes a human body infrared sensor P1. The human body infrared sensor P1 is provided with three pins. The power pin is respectively connected to the positive and negative poles of the power module, the output pin is connected to the pin 7 of the single-chip computer, and a light-emitting diode D2 is provided to connect the positive pole of the sensor input terminal and the pin 6 of the single-chip computer. When someone enters the detection range, the sensor continuously outputs a high-level signal, and the light-emitting diode D2 lights up, until the person leaves the detection range and delays for a period of time to output a low-level signal, and the light-emitting diode D2 goes out.

[0046] like Figure 6As shown, the ambient light detection module includes an ultraviolet sensor P2 and a voltage comparison circuit. The ultraviolet sensor is provided with three pins. The power pin is respectively connected to the positive and negative electrodes of the power module. A linear analog voltage signal is output according to the ultraviolet intensity in the ambient light. The voltage comparison circuit includes a voltage comparator U2, a sliding resistor R3 and a resistor R2. The sliding resistor R3 is connected in series with the resistor R2 and connected to the positive and negative electrodes of the power module. The voltage is divided by changing the resistance value of the sliding rheostat R3 to set the threshold. The voltage comparator U2 is provided with 8 pins No. 1-8. Pins 8 and 4 are respectively connected to the positive and negative electrodes of the power module. Pin 3 is connected to the output pin of the ultraviolet sensor, pin 2 is connected to the sliding rheostat, and pin No. 1 is connected to pin No. 1 of the single-chip computer. The output voltage of the ultraviolet sensor is compared with the set threshold through the voltage comparator. If it is higher than the threshold, a high-level signal is output, and if it is lower than the threshold, a low-level signal is output. The sensitivity of the ambient light detection module can be adjusted by changing the resistance value of the sliding rheostat. When the working mode is automatic mode, the single chip microcomputer receives the level signal and determines the presence of people in the room through the internal storage program. If there is no one in the room, the relay K2 is controlled to remain in the disconnected state to turn off the lights. If there is someone in the room, the current indoor ambient light intensity is further determined. If the ambient light intensity does not meet the work and study needs, the relay K2 is controlled to be energized to turn on the lights, otherwise the lights are turned off. After the judgment is completed, the next judgment is entered, and the presence of human bodies in the room and the ambient light intensity are cyclically detected. When a person leaves the room, the lights are turned off after a delay.

[0047] like Figure 4 As shown, two mounting holes whose sizes match those of the human body sensing module and the ambient light detection module are respectively provided on the front side of the mounting shell.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit its protection scope. Although the utility model is described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that after reading the utility model, those skilled in the art can still make various changes, modifications or equivalent substitutions to the specific implementation methods of the utility model, but these changes, modifications or equivalent substitutions are all within the protection scope of the pending claims of the utility model.

Claims

1. A multi-signal fusion LED light switch intelligent control system, characterized in that: It includes an electric control module and an environmental detection module, which are arranged inside the installation shell; the electric control module includes a single-chip control module, a power module, a working mode switching switch, a manual switch and a relay; the single-chip control module includes a single-chip U1, a crystal oscillator circuit and a reset circuit; the single-chip U1 internally stores a light switching control program; the crystal oscillator circuit is connected to the single-chip U1 and the reset circuit respectively, the power module is connected to the single-chip U1 and the working mode switching switch respectively, the relay is connected between the working mode switching switch and the power module, and the relay is connected to the manual switch; The environment detection module includes a human body sensing module and an ambient light detection module. The human body sensing module includes a human body infrared sensor P1, which is respectively connected to the power module and the single-chip computer U1. The ambient light detection module includes an ultraviolet sensor P2 and a voltage comparison circuit, which is respectively connected to the power module and the voltage comparison circuit.

2. According to claim 1, a multi-signal fusion LED light switch intelligent control system is characterized in that: One end of the crystal oscillator circuit is respectively connected to pin 18 and pin 19 of the single-chip microcomputer U1, the other end of the crystal oscillator circuit is connected to one end of resistor R4, the other end of resistor R4 is respectively connected to pin 9 of the single-chip microcomputer U1 and the reset circuit, pin 40 of the single-chip microcomputer U1 is connected to the positive pole of the power module, pin 20 of the single-chip microcomputer U1 is connected to the negative pole of the power module, one end of the working mode switching switch is connected to the positive pole of the power module, and the other end of the working mode switching switch is connected to the negative pole of the power module.

3. According to claim 1, a multi-signal fusion LED light switch intelligent control system is characterized in that: The crystal oscillator circuit is composed of a second capacitor C2, a third capacitor C3 and a crystal oscillator Y1; one end of the second capacitor C2 is connected to one end of the third capacitor C3, the other end of the second capacitor C2 is connected to the other end of the third capacitor C3, the second capacitor C2 and the third capacitor C3 form a parallel capacitor, and the crystal oscillator Y1 is connected between one end of the second capacitor C2 and one end of the third capacitor C3; one end of the crystal oscillator Y1 is connected to pin 18 of the microcontroller U1, the other end of the crystal oscillator Y1 is connected to pin 19 of the microcontroller U1, and the other end of the parallel capacitor is connected to one end of the fourth resistor R4.

4. The multi-signal fusion LED light switch intelligent control system according to claim 1, characterized in that: The reset circuit is provided with a reset switch S1, one end of the reset switch S1 is connected to the positive pole of the power module, the other end of the reset switch S1 is connected to pin 9 of the microcontroller U1, a first capacitor C1 is connected between one end of the reset switch S1 and the other end of the reset switch S1, and pin 9 of the microcontroller U1 is the RST end.

5. The multi-signal fusion LED light switch intelligent control system according to claim 1, characterized in that: The human infrared sensor P1 is provided with a power pin and an output pin. The positive pole of the power pin of the human infrared sensor P1 is connected to the positive pole of the power module, the negative pole of the power pin of the human infrared sensor P1 is connected to the negative pole of the power module, and the output pin of the human infrared sensor P1 is connected to pin 7 of the single-chip computer U1; The ultraviolet sensor P2 is provided with a power pin and an output pin, the positive pole of the power pin of the ultraviolet sensor P2 is connected to the positive pole of the power module, the negative pole of the power pin of the ultraviolet sensor P2 is connected to the negative pole of the power module, and the output pin of the ultraviolet sensor P2 is connected to the voltage comparison circuit; The positive electrode of the power pin of the human infrared sensor P1 is connected to the positive electrode of the light emitting diode D2, the negative electrode of the light emitting diode D2 is connected to the pin 6 of the single chip computer U1, and the first resistor R1 is connected between the negative electrode of the light emitting diode D2 and the pin 6 of the single chip computer U1; When a human body enters the detection range, the light-emitting diode D2 lights up, and when a human body leaves the detection range, the light-emitting diode D2 goes out.

6. The multi-signal fusion LED light switch intelligent control system according to claim 1, characterized in that: The working mode switching switch is a mode switching switch S2, and the relay includes a relay K1 and a relay K2. One end of the mode switching switch S2 is respectively connected to the positive electrode of the power module and the pin A1 of the relay K1, one end of the fifth resistor R5 is connected between one end of the mode switching switch S2 and the pin A1 of the relay K1, the other end of the fifth resistor R5 is connected to the pin 14 of the single-chip computer U1, the pin A2 of the relay K1 is connected to the negative electrode of the power module, and the pin COM of the relay K1 is connected to the live wire; The pin NC of the relay K1 is connected to the pin COM of the relay K2, the pin NO of the relay K1 is connected to one end of the manual switch, a lamp is connected between the pin NO of the relay K1 and one end of the manual switch, and the other end of the manual switch is connected to the pin NO of the relay K2; Pin A1 of relay K2 is connected to the other end of the mode switching switch S2, pin A2 of relay K2 is connected to the negative pole of the power module, and pin NO of relay K2 is connected to the lamp through the manual switch; When the mode switching switch S2 is turned off, it is in automatic mode, relay K1 is in normally open state, relay K2 is connected to the room power, and the single-chip microcomputer U1 controls relay K2 to automatically control the light on and off of the lamp. When the mode switching switch S2 is started, relay K2 is energized, the manual switch is connected to the room power, and the light on and off of the lamp is controlled by the manual switch.

7. The multi-signal fusion LED light switch intelligent control system according to claim 1, characterized in that: The power module includes an AC / DC isolation buck chip P3 and a light emitting diode D1. The input pins of the AC / DC isolation buck chip P3 are connected to the live wire and the neutral wire respectively. The positive electrode of the output pin of the AC / DC isolation buck chip P3 is connected to the pin 40 of the single-chip computer U1. The negative electrode of the output pin of the AC / DC isolation buck chip P3 is connected to the pin 20 of the single-chip computer U1. The positive electrode of the reflective diode D1 is connected to the positive electrode of the output pin of the AC / DC isolation buck chip P3, and the negative electrode of the reflective diode D1 is connected to the negative electrode of the output pin of the AC / DC isolation buck chip P3.

8. The multi-signal fusion LED light switch intelligent control system according to claim 7, characterized in that: The voltage comparison circuit includes a voltage comparator U2, a sliding resistor R3 and a second resistor R2, one end of the sliding resistor R3 is connected to one end of the second resistor R2, the other end of the second resistor R2 is connected to the positive electrode of the power module, the other end of the sliding resistor R3 is connected to the negative electrode of the power module, pin 8 of the voltage comparator U2 is connected to the positive electrode of the power module, pin 4 of the voltage comparator U2 is connected to the negative electrode of the power module, pin 3 of the voltage comparator U2 is connected to the output pin of the ultraviolet sensor P2, pin 2 of the voltage comparator U2 is connected to the sliding end of the sliding resistor R3, and pin 1 of the voltage comparator U2 is connected to pin 1 of the microcontroller U1.

9. The multi-signal fusion LED light switch intelligent control system according to claim 8, characterized in that: The single-chip microcomputer U1 is a STC89C5l single-chip microcomputer, the human infrared sensor P1 is a HC-SR501 human infrared sensor, the ultraviolet sensor P2 is a CJMCU-GUVA-S12SD ultraviolet sensor, the voltage comparator U2 is a LM393 voltage comparator, and the AC / DC isolation buck chip P3 is an AM11-5W05VAC / DC isolation buck chip.

10. The multi-signal fusion LED light switch intelligent control system according to claim 1, characterized in that: The mounting shell is provided with mounting holes for assembling the human body sensing module and the ambient light detection module.

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