Light control circuit and system

Abstract

The utility model discloses a light control circuit, which is characterized in that an ambient light detection module generates a first light intensity signal according to the detected light intensity of the current environment, and when the first light intensity signal is smaller than a first preset value, a control module outputs a first control signal to a voltage stabilizing module; the voltage stabilization module outputs a first driving voltage to the distance detection module according to the first control signal so as to enable the distance detection module to be electrified to work, and when the distance detection module is electrified to work, the distance detection module obtains a relative distance with a detection target and obtains a first distance signal and outputs the first distance signal to the control module; the control module outputs a first driving signal to the driving module according to the first distance signal, the driving module controls the on-off of the lamp according to the first driving signal, the on-off of the lamp is controlled by detecting the light intensity of the environment and the relative distance of a user, automatic control of the lamp is achieved, the control precision is improved, and the user experience is improved. And the probability of false triggering is reduced. The utility model further discloses a light control system.

Description

Technical Field

[0001] The present application belongs to the field of electronic circuit technology, and in particular, relates to a lighting control circuit and system. Background Art

[0002] The increasing popularity of smart lamps has greatly facilitated people's lives. From one-click to bright life to the current "invisible" smart control, lamps are also undergoing an intelligent evolution. Nowadays, in addition to lighting in public areas, people still need other auxiliary light sources to achieve lighting in study and office areas outside the area.

[0003] Traditional smart sensing modules are used to control lighting in a small area, which can easily lead to false triggering and self-lighting due to the shaking of objects such as curtains and desktop plants caused by the breeze. Utility Model Content

[0004] The purpose of the present application is to provide a lighting control circuit, aiming to solve the problem that lighting control is easily mistriggered.

[0005] A first aspect of an embodiment of the present application provides a light control circuit for a lamp, comprising:

[0006] An ambient light detection module, used to collect the light intensity in the current environment and generate a first light intensity signal according to the light intensity;

[0007] A distance detection module, configured to be powered on and operated according to a first driving voltage, obtain a relative distance to a detection target when powered on, and obtain a first distance signal according to the relative distance;

[0008] A switch module, configured to output a first switch signal when a first key instruction is input;

[0009] a voltage stabilizing module, electrically connected to the distance detecting module, and configured to output the first driving voltage when a first control signal is input;

[0010] a control module, electrically connected to the ambient light detection module, the distance detection module, the switch module and the voltage stabilizing module, and configured to output a first control signal when the first light intensity is less than a first preset value after the first switch signal is input; and output a first drive signal according to the first distance signal; and

[0011] The driving module is electrically connected to the control module and is used to control the lighting of the lamp according to the first driving signal.

[0012] In one embodiment, the switch module is further configured to output a second switch signal when a second key command is input;

[0013] The control module is further configured to output a second drive signal when the first distance signal is less than a preset value and a change of the first distance signal conforms to a first preset rule; and is further configured to output the first drive signal according to the first distance signal after the second switch signal is input;

[0014] The driving module is further configured to drive the lamp to light up according to a first preset color temperature according to the first driving signal, and to drive the lamp to light up according to a second preset color temperature according to the second driving signal.

[0015] In one embodiment, it also includes:

[0016] A power supply module is electrically connected to the driving module, the voltage stabilizing module and the control module, and is used to supply power to the driving module, the voltage stabilizing module and the control module.

[0017] In one embodiment, the ambient light detection module and the distance detection module jointly include an eighth resistor, a ninth resistor, a detection chip, a light sensor, and a distance sensor;

[0018] The first signal pin of the detection chip is connected to the first end of the eighth resistor, the second signal pin of the detection chip is connected to the first end of the ninth resistor, the second end of the eighth resistor, the second end of the ninth resistor, the light sensor and the distance sensor are connected in common, the signal output pin of the detection chip is used to output the first light intensity signal and the first distance signal, the light sensor is used to collect the light intensity in the current environment, the distance sensor is used to obtain the relative distance to the detection target, and the power pin of the detection chip is used to input the first driving voltage.

[0019] In one embodiment, the switch module includes a switch unit;

[0020] The first end of the switch unit is connected to the power ground, the second end of the switch unit is used to output the first switch signal, and the switch unit is used to input the first key instruction and the second key instruction.

[0021] In one embodiment, the voltage stabilizing module includes a voltage stabilizing chip, a first capacitor, a second capacitor, a third capacitor and a fourth capacitor;

[0022] The input end of the voltage stabilizing chip, the first end of the first capacitor and the first end of the second capacitor are connected together and serve as the power input end of the voltage stabilizing module; the output end of the voltage stabilizing chip, the first end of the third capacitor and the first end of the fourth capacitor are connected together and are used to output the first driving voltage; the enable end of the voltage stabilizing chip is used to input the first control signal; the second end of the first capacitor, the second end of the second capacitor, the second end of the third capacitor, the second end of the fourth capacitor and the ground end of the voltage stabilizing chip are all connected to the power ground.

[0023] In one embodiment, the driving module includes a third field effect transistor, a fourth field effect transistor, a tenth resistor, an eleventh resistor, a fifteenth resistor, and a sixteenth resistor;

[0024] The first end of the tenth resistor is used to input the first driving signal, the second end of the tenth resistor, the first end of the fifteenth resistor and the gate of the third field effect transistor are connected in common, the drain of the third field effect transistor is used to control the lamp, and the second end of the fifteenth resistor and the source of the third field effect transistor are both connected to the power ground;

[0025] The first end of the eleventh resistor is used to input the first driving signal, the second end of the eleventh resistor, the first end of the sixteenth resistor and the gate of the fourth field effect transistor are connected in common, the drain of the fourth field effect transistor is used to control the lamp, and the second end of the sixteenth resistor and the source of the fourth field effect transistor are both connected to the power ground.

[0026] In one embodiment, the control module includes a first control chip, a second control chip, a second resistor, a twelfth resistor, a thirteenth resistor and a fourteenth resistor;

[0027] The first input end of the first control chip is used to input the first light intensity signal and the first distance signal, the first output end of the first control chip is used to output the first drive signal, the second output end of the first control chip is used to output the second drive signal, the first burning point of the first control chip is connected to the first end of the twelfth resistor, the second burning point of the first control chip is connected to the first end of the thirteenth resistor, the third burning point of the first control chip is connected to the third end of the twelfth resistor, the second end of the twelfth resistor, the second end of the thirteenth resistor, and the second end of the fourteenth resistor are used for burning data transmission of the first control chip; the input end of the second control chip is used to input the first switch signal and the second switch signal, the output end of the second control chip is connected to the first end of the second resistor, and the second end of the second resistor is used to output the first control signal; the first communication end of the first control chip is connected to the first communication end of the second control chip.

[0028] In one embodiment, the power supply module includes a first resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a twentieth resistor, a fifth capacitor, a sixth capacitor, a battery element, a first light-emitting diode, a second light-emitting diode, and a power chip;

[0029] The temperature terminal of the power chip, the first end of the third resistor, the NTC output end of the battery element and the first end of the fifth resistor are connected together, the programming pulse terminal of the power chip is connected to the first end of the first resistor, the power terminal of the power chip, the first end of the twentieth resistor, the first end of the sixth capacitor, the first end of the sixth resistor, the first end of the fourth resistor and the enable end of the power chip are connected together, the second end of the sixth resistor is connected to the positive electrode of the first light-emitting diode, the second end of the fourth resistor is connected to the positive electrode of the second light-emitting diode, the second end of the twentieth resistor is used to input an external charging voltage, the battery terminal of the power chip is connected to the positive electrode of the battery element, the second end of the fifth resistor is used to power the driving module, the voltage stabilizing module and the control module, the second end of the first resistor, the second end of the third resistor, the ground terminal of the power chip, the second end of the fifth capacitor, the second end of the sixth capacitor, the negative electrode of the battery element, the negative electrode of the first light-emitting diode and the negative electrode of the second light-emitting diode are all connected to the power ground.

[0030] A second aspect of an embodiment of the present application provides a lighting control system, comprising a lighting control circuit as described in any one of the above items.

[0031] Compared with the prior art, the beneficial effects of the embodiments of the utility model are as follows: the solution generates a first light intensity signal according to the light intensity of the current environment detected in the ambient light detection module, and when the first light intensity signal is less than a first preset value, the control module outputs a first control signal to the voltage stabilizing module, the voltage stabilizing module outputs a first driving voltage to the distance detection module according to the first control signal to power on the distance detection module, and when the distance detection module is powered on, it obtains the relative distance to the detection target and obtains a first distance signal, and outputs the first distance signal to the control module, the control module outputs a first driving signal to the driving module according to the first distance signal, the driving module controls the lighting of the lamp according to the first driving signal, and controls the lighting of the lamp by detecting the light intensity of the environment and the relative distance of the user, thereby realizing automatic control of the lamp, improving the accuracy of control, and reducing the probability of false triggering. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A first circuit principle block diagram of a lighting control circuit provided in an embodiment of the present application;

[0033] Figure 2 A second circuit principle block diagram of the lighting control circuit provided in an embodiment of the present application;

[0034] Figure 3 A circuit schematic diagram of an ambient light detection module and a distance detection module provided in an embodiment of the present application;

[0035] Figure 4 A circuit schematic diagram of a switch module provided in an embodiment of the present application;

[0036] Figure 5 A circuit schematic diagram of a voltage stabilizing module provided in an embodiment of the present application;

[0037] Figure 6 A circuit schematic diagram of a driving module provided in an embodiment of the present application;

[0038] Figure 7 A circuit schematic diagram of a control module provided in an embodiment of the present application;

[0039] Figure 8 A circuit schematic diagram of the power supply module provided in an embodiment of the present application. DETAILED DESCRIPTION

[0040] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0041] Figure 1 The first exemplary principle block diagram provided by the embodiment of the present application is shown. For the convenience of explanation, only the part related to the present embodiment is shown, which is described in detail as follows:

[0042] A light control circuit is used for a lamp, and includes an ambient light detection module 110 , a distance detection module 120 , a switch module 130 , a voltage stabilization module 140 , a control module 150 and a drive module 160 .

[0043] The ambient light detection module 110 is used to collect the light intensity in the current environment and generate a first light intensity signal according to the light intensity.

[0044] The distance detection module 120 is used to power on and operate according to the first driving voltage, obtain a relative distance to a detection target when powered on, and obtain a first distance signal according to the relative distance.

[0045] The switch module 130 is used to output a first switch signal when a first key instruction is input.

[0046] The voltage stabilizing module 140 is electrically connected to the distance detecting module 120 , and is configured to output the first driving voltage when a first control signal is input.

[0047] The control module 150 is electrically connected to the ambient light detection module 110, the distance detection module 120, the switch module 130 and the voltage stabilizing module 140, and is used to output a first control signal when the first light intensity is less than a first preset value after the first switch signal is input; and output a first drive signal according to the first distance signal.

[0048] The driving module 160 is electrically connected to the control module 150 and is used to control the lighting of the lamp according to the first driving signal.

[0049] In this embodiment, when the user physically contacts the switch module 130 to input a first key command, the switch module 130 outputs a first switch signal to the control module 150 according to the first key command. At this time, the control module 150 switches to the first preset mode according to the first switch signal to operate. The ambient light detection module 110 generates a first light intensity signal according to the light intensity of the current environment detected, and when the first light intensity signal is less than a first preset value, the control module 150 outputs a first control signal to the voltage stabilizing module 140, and the voltage stabilizing module 140 outputs a first driving voltage to the distance detection module 120 according to the first control signal to power on the distance detection module 120. When the distance detection module 120 is powered on, it obtains the relative distance to the detection target and obtains a first distance signal, and outputs the first distance signal to the control module 150, and the control module 150 outputs a first driving signal to the driving module 160 according to the first distance signal, and the driving module 160 controls the lighting of the lamp according to the first driving signal. The lighting of the lamp is controlled by detecting the light intensity of the environment and the relative distance of the user, thereby realizing automatic control of the lamp, improving the accuracy of control, and reducing the probability of false triggering.

[0050] When the first light intensity signal is not less than the first preset value, the distance detection module 120 does not work to save energy. The first light intensity signal is also a voltage value. The first preset value is a voltage value. The specific value of the first preset value can be set according to actual needs. The first button instruction can be that the switch is pressed once within a preset time, and the switch module 130 triggers a level change.

[0051] The distance sensor module detects the relative distance information between the user and the device by emitting laser. The detection area of ​​the distance sensor module can be set so that curtains or desktop plants are not included. Therefore, objects that are prone to slight shaking, such as curtains or desktop plants, will not affect the detection results when they shake.

[0052] The first driving signal is a pulse width signal. When the duty cycle signal of the first driving signal increases from small to large, the driving module 160 controls the light of the lamp from dark to bright. The closer the user is to the distance detection module 120, the brighter the lamp; conversely, the farther the user is from the distance detection module 120, the dimmer the lamp becomes until it goes out.

[0053] In one embodiment, the switch module 130 is further configured to output a second switch signal when a second key command is input; the second key command may be that the switch is pressed multiple times within a preset time, and the switch module 130 triggers multiple level changes.

[0054] The control module 150 is further configured to output a second drive signal when the first distance signal is less than a preset value and the change of the first distance signal conforms to a first preset rule; and is further configured to output the first drive signal according to the first distance signal after the second switch signal is input;

[0055] The driving module 160 is further configured to drive the lamp to light up according to a first preset color temperature according to the first driving signal, and to drive the lamp to light up according to a second preset color temperature according to the second driving signal.

[0056] In this embodiment, the control module 150 outputs a second drive signal when detecting that the first distance signal is less than a preset value and the change of the first distance signal conforms to a first preset rule, so that the drive module 160 controls the lamp to light up according to a second preset color temperature according to the second drive signal, thereby realizing contactless control of the color temperature of the lamp. The first distance signal being less than the preset value may correspond to the distance between the user and the distance sensor module being less than 10 cm, and the first preset rule may be that the distance changes from far to near and then to far.

[0057] When the control module 150 detects that the switch module 130 has multiple level changes within a preset time, the control module 150 directly outputs the first drive signal or the second drive signal according to the first distance signal, without having to work according to the size of the first light intensity signal.

[0058] like Figure 2 As shown, in one embodiment, a power supply module 170 is also included.

[0059] The power supply module 170 is electrically connected to the driving module 160 , the voltage stabilizing module 140 and the control module 150 , and is used to supply power to the driving module 160 , the voltage stabilizing module 140 and the control module 150 .

[0060] The power supply module 170 is powered by a lithium battery, and the battery charging part in the power supply module 170 is responsible for supplying power to the lithium battery during power feeding. The charging indicator light indicates the completion of charging. The charging circuit has an NTC thermistor detection function, which detects the temperature change of the battery while charging the battery.

[0061] See also Figure 2-Figure 8 In one embodiment, the ambient light detection module 110 and the distance detection module 120 jointly include an eighth resistor R8, a ninth resistor R9, a detection chip U4, a light sensor and a distance sensor;

[0062] The first signal pin of the detection chip U4 is connected to the first end of the eighth resistor R8, the second signal pin of the detection chip U4 is connected to the first end of the ninth resistor R9, the second end of the eighth resistor R8, the second end of the ninth resistor R9, the light sensor and the distance sensor are connected together, the signal output pin of the detection chip U4 is used to output the first light intensity signal and the first distance signal, the light sensor is used to collect the light intensity in the current environment, the distance sensor is used to obtain the relative distance to the detection target, and the power pin of the detection chip U4 is used to input the first driving voltage. Among them, the distance sensor can be a TOF sensor, the TOF sensor communicates with the detection chip U4 through I2C, and the first distance signal is a digital signal.

[0063] In one embodiment, the switch module 130 includes a switch unit K1;

[0064] The first end of the switch unit K1 is connected to the power ground, the second end of the switch unit K1 is used to output the first switch signal, and the switch unit K1 is used to input the first key instruction and the second key instruction.

[0065] In one embodiment, the voltage stabilizing module 140 includes a voltage stabilizing chip U1, a first capacitor C1, a second capacitor C2, a third capacitor C3 and a fourth capacitor C4;

[0066] The input end of the voltage stabilizing chip U1, the first end of the first capacitor C1, and the first end of the second capacitor C2 are connected together and serve as the power input end of the voltage stabilizing module 140; the output end of the voltage stabilizing chip U1, the first end of the third capacitor C3, and the first end of the fourth capacitor C4 are connected together and used to output the first driving voltage; the enable end of the voltage stabilizing chip U1 is used to input the first control signal; the second end of the first capacitor C1, the second end of the second capacitor C2, the second end of the third capacitor C3, the second end of the fourth capacitor C4, and the ground end of the voltage stabilizing chip U1 are all connected to the power ground.

[0067] In one embodiment, the driving module 160 includes a third field effect transistor Q3, a fourth field effect transistor Q4, a tenth resistor R10, an eleventh resistor R11, a fifteenth resistor R15, and a sixteenth resistor R16;

[0068] The first end of the tenth resistor R10 is used to input the first driving signal, the second end of the tenth resistor R10, the first end of the fifteenth resistor R15 and the gate of the third field effect transistor Q3 are connected in common, the drain of the third field effect transistor Q3 is used to control the lamp, and the second end of the fifteenth resistor R15 and the source of the third field effect transistor Q3 are both connected to the power ground;

[0069] The first end of the eleventh resistor R11 is used to input the first driving signal, the second end of the eleventh resistor R11, the first end of the sixteenth resistor R16 and the gate of the fourth field effect transistor Q4 are connected in common, the drain of the fourth field effect transistor Q4 is used to control the lamp, and the second end of the sixteenth resistor R16 and the source of the fourth field effect transistor Q4 are both connected to the power ground.

[0070] In one embodiment, the control module 150 includes a first control chip U3, a second control chip U5, a second resistor R2, a twelfth resistor R12, a thirteenth resistor R13 and a fourteenth resistor R14;

[0071] The first input end of the first control chip U3 is used to input the first light intensity signal and the first distance signal, the first output end of the first control chip U3 is used to output the first drive signal, the second output end of the first control chip U3 is used to output the second drive signal, the first burning point of the first control chip U3 is connected to the first end of the twelfth resistor R12, the second burning point of the first control chip U3 is connected to the first end of the thirteenth resistor R13, the third burning point of the first control chip U3 is connected to the third end of the twelfth resistor R12, the second end of the twelfth resistor R12, the second end of the thirteenth resistor R13, and the second end of the fourteenth resistor R14 are used for burning data transmission of the first control chip U3; the input end of the second control chip U5 is used to input the first switch signal and the second switch signal, the output end of the second control chip U5 is connected to the first end of the second resistor R2, and the second end of the second resistor R2 is used to output the first control signal; the first communication end of the first control chip U3 is connected to the first communication end of the second control chip U5.

[0072] In one embodiment, the power supply module 170 includes a first resistor R1, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a twentieth resistor R20, a fifth capacitor C5, a sixth capacitor C6, a battery element BAT, a first light-emitting diode R-LED, a second light-emitting diode G-LED and a power chip U2;

[0073] The temperature terminal of the power chip U2, the first end of the third resistor R3, the NTC output end of the battery element BAT and the first end of the fifth resistor R5 are connected together, the programming pulse terminal of the power chip U2 is connected to the first end of the first resistor R1, the power terminal of the power chip U2, the first end of the twentieth resistor R20, the first end of the sixth capacitor C6, the first end of the sixth resistor R6, the first end of the fourth resistor R4 and the enable end of the power chip U2 are connected together, the second end of the sixth resistor R6 is connected to the positive electrode of the first light-emitting diode R-LED, the second end of the fourth resistor R4 is connected to the second light-emitting diode G -The positive electrode of the 20th resistor R20 is connected, the second end of the 20th resistor R20 is used to input an external charging voltage, the battery end of the power chip U2 is connected to the positive electrode of the battery element BAT, the second end of the fifth resistor R5 is used to power the driving module 160, the voltage stabilizing module 140 and the control module 150, the second end of the first resistor R1, the second end of the third resistor R3, the ground end of the power chip U2, the second end of the fifth capacitor C5, the second end of the sixth capacitor C6, the negative electrode of the battery element BAT, the negative electrode of the first light-emitting diode R-LED and the negative electrode of the second light-emitting diode G-LED are all connected to the power ground.

[0074] An embodiment of the present application also provides a lighting control system, including a lighting control circuit as in any of the above-listed embodiments. Because the lighting control system of this embodiment includes the lighting control circuit of any of the above-listed embodiments, the lighting control system of this embodiment includes the beneficial effects corresponding to the lighting control circuit of any of the above-listed embodiments.

[0075] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A lighting control circuit for a lamp, characterized in that: include: An ambient light detection module, used to collect the light intensity in the current environment and generate a first light intensity signal according to the light intensity; A distance detection module, configured to be powered on and operated according to a first driving voltage, obtain a relative distance to a detection target when powered on, and obtain a first distance signal according to the relative distance; A switch module, configured to output a first switch signal when a first key instruction is input; a voltage stabilizing module, electrically connected to the distance detecting module, and configured to output the first driving voltage when a first control signal is input; a control module, electrically connected to the ambient light detection module, the distance detection module, the switch module and the voltage stabilizing module, and configured to output a first control signal when the first light intensity is less than a first preset value after the first switch signal is input; and output a first drive signal according to the first distance signal; as well as The driving module is electrically connected to the control module and is used to control the lighting of the lamp according to the first driving signal.

2. The lighting control circuit according to claim 1, characterized in that: The switch module is further configured to output a second switch signal when a second key instruction is input; The control module is further configured to output a second drive signal when the first distance signal is less than a preset value and a change of the first distance signal conforms to a first preset rule; and is further configured to output the first drive signal according to the first distance signal after the second switch signal is input; The driving module is further configured to drive the lamp to light up according to a first preset color temperature according to the first driving signal, and to drive the lamp to light up according to a second preset color temperature according to the second driving signal.

3. The lighting control circuit as claimed in claim 2, characterized in that: Also includes: A power supply module is electrically connected to the driving module, the voltage stabilizing module and the control module, and is used to supply power to the driving module, the voltage stabilizing module and the control module.

4. The lighting control circuit as claimed in claim 3, characterized in that: The ambient light detection module and the distance detection module jointly include an eighth resistor, a ninth resistor, a detection chip, a light sensor and a distance sensor; The first signal pin of the detection chip is connected to the first end of the eighth resistor, the second signal pin of the detection chip is connected to the first end of the ninth resistor, the second end of the eighth resistor, the second end of the ninth resistor, the light sensor and the distance sensor are connected in common, the signal output pin of the detection chip is used to output the first light intensity signal and the first distance signal, the light sensor is used to collect the light intensity in the current environment, the distance sensor is used to obtain the relative distance to the detection target, and the power pin of the detection chip is used to input the first driving voltage.

5. The lighting control circuit as claimed in claim 3, characterized in that: The switch module comprises a switch unit; The first end of the switch unit is connected to the power ground, the second end of the switch unit is used to output the first switch signal, and the switch unit is used to input the first key instruction and the second key instruction.

6. The lighting control circuit as claimed in claim 3, characterized in that: The voltage stabilizing module includes a voltage stabilizing chip, a first capacitor, a second capacitor, a third capacitor and a fourth capacitor; The input end of the voltage stabilizing chip, the first end of the first capacitor and the first end of the second capacitor are connected together and serve as the power input end of the voltage stabilizing module; the output end of the voltage stabilizing chip, the first end of the third capacitor and the first end of the fourth capacitor are connected together and are used to output the first driving voltage; the enable end of the voltage stabilizing chip is used to input the first control signal; the second end of the first capacitor, the second end of the second capacitor, the second end of the third capacitor, the second end of the fourth capacitor and the ground end of the voltage stabilizing chip are all connected to the power ground.

7. The lighting control circuit as claimed in claim 3, characterized in that: The driving module includes a third field effect transistor, a fourth field effect transistor, a tenth resistor, an eleventh resistor, a fifteenth resistor and a sixteenth resistor; The first end of the tenth resistor is used to input the first driving signal, the second end of the tenth resistor, the first end of the fifteenth resistor and the gate of the third field effect transistor are connected in common, the drain of the third field effect transistor is used to control the lamp, and the second end of the fifteenth resistor and the source of the third field effect transistor are both connected to the power ground; The first end of the eleventh resistor is used to input the first driving signal, the second end of the eleventh resistor, the first end of the sixteenth resistor and the gate of the fourth field effect transistor are connected in common, the drain of the fourth field effect transistor is used to control the lamp, and the second end of the sixteenth resistor and the source of the fourth field effect transistor are both connected to the power ground.

8. The lighting control circuit as claimed in claim 3, characterized in that: The control module includes a first control chip, a second control chip, a second resistor, a twelfth resistor, a thirteenth resistor and a fourteenth resistor; The first input end of the first control chip is used to input the first light intensity signal and the first distance signal, the first output end of the first control chip is used to output the first driving signal, the second output end of the first control chip is used to output the second driving signal, the first burning point of the first control chip is connected to the first end of the twelfth resistor, the second burning point of the first control chip is connected to the first end of the thirteenth resistor, the third burning point of the first control chip is connected to the third end of the twelfth resistor, the second end of the twelfth resistor, the second end of the thirteenth resistor, and the second end of the fourteenth resistor are used for burning data transmission of the first control chip; The input end of the second control chip is used to input the first switch signal and the second switch signal, the output end of the second control chip is connected to the first end of the second resistor, and the second end of the second resistor is used to output the first control signal; The first communication terminal of the first control chip is connected to the first communication terminal of the second control chip.

9. The lighting control circuit as claimed in claim 3, characterized in that: The power supply module includes a first resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a twentieth resistor, a fifth capacitor, a sixth capacitor, a battery element, a first light emitting diode, a second light emitting diode and a power chip; The temperature terminal of the power chip, the first end of the third resistor, the NTC output end of the battery element and the first end of the fifth resistor are connected together, the programming pulse terminal of the power chip is connected to the first end of the first resistor, the power terminal of the power chip, the first end of the twentieth resistor, the first end of the sixth capacitor, the first end of the sixth resistor, the first end of the fourth resistor and the enable end of the power chip are connected together, the second end of the sixth resistor is connected to the positive electrode of the first light-emitting diode, the second end of the fourth resistor is connected to the positive electrode of the second light-emitting diode, the second end of the twentieth resistor is used to input an external charging voltage, the battery terminal of the power chip is connected to the positive electrode of the battery element, the second end of the fifth resistor is used to power the driving module, the voltage stabilizing module and the control module, the second end of the first resistor, the second end of the third resistor, the ground terminal of the power chip, the second end of the fifth capacitor, the second end of the sixth capacitor, the negative electrode of the battery element, the negative electrode of the first light-emitting diode and the negative electrode of the second light-emitting diode are all connected to the power ground.

10. A lighting control system, characterized in that: The invention comprises a lighting control circuit as described in any one of claims 1 to 9.

Images