Automatic testing device for simulating outdoor illuminance

Abstract

The utility model discloses an automatic testing device for simulating outdoor illuminance, which is characterized in that the bottom of a lamp box host is fixed with the top of a box body, and a bottom plate is positioned below the box body; a base hole is formed in the middle of the bottom plate and used for installing a base of the lighting control equipment. An operation panel is fixed on the lamp box host, and the operation panel comprises an RS-485 terminal, a display screen and operation keys; the lamp box host comprises a PCB (Printed Circuit Board), and a main control chip unit, a clock module and a dimming module are fixed on the PCB; the main control chip unit is used for receiving an external burning program through the RS-485 terminal and controlling an output voltage value of the dimming module in combination with time information, fed back by the clock module, of the position where the device is located and longitude and latitude information, fed back by the operation key, of the position where the device is located; the dimming module is connected with the LED driving power supply, the LED driving power supply is connected with the LED light source, the dimming module is used for controlling the LED driving power supply so as to realize dimming control on the LED light source, and the LED light source is used for providing illumination for the illumination control equipment and simulating outdoor illuminance.

Description

Technical Field

[0001] This utility model relates to the field of testing technology for intelligent urban lighting equipment, specifically an automated testing device for simulating outdoor illuminance. Background Technology

[0002] With the accelerated pace of smart city construction, in order to meet the development needs of smart lighting and achieve the goals of on-demand lighting and energy conservation and carbon reduction, it is necessary to develop various intelligent lighting control devices so that these devices can autonomously achieve on-demand lighting and dimming control based on the collected on-site illuminance.

[0003] However, during the development process, when testing and debugging lighting control equipment, it's impossible to simultaneously simulate a real testing environment and allow for on-the-spot equipment adjustments, whether in a laboratory or outdoors. Indoor testing often involves simple tools to block light sources and expose the equipment, which fails to simulate changes in outdoor illuminance. Outdoor testing, on the other hand, requires most lighting control equipment to be potted for rain and water resistance, making program writing inconvenient, posing safety risks, and hindering easy disassembly and repeated adjustments. Therefore, there is a need to develop an intelligent illuminance control device that can automatically simulate outdoor lighting conditions indoors to meet the research and development requirements. Utility Model Content

[0004] Technical Objective: To facilitate testing the stability of lighting control equipment under outdoor lighting conditions and the rationality of its switching and dimming, this utility model provides an automated testing device that simulates outdoor illuminance, enabling the indoor simulation of outdoor lighting environments to meet the testing needs during the research and development of lighting control equipment.

[0005] To achieve the above-mentioned technical objectives, the technical solution adopted by this utility model is as follows:

[0006] An automated testing device for simulating outdoor illuminance includes a lightbox main unit, a housing, and a base plate. The bottom of the lightbox main unit is fixed to the top of the housing, and the base plate is located below the housing. A base hole is provided in the center of the base plate for mounting the base of a lighting control device. The housing is fastened to the base plate and the lighting control device. An operation panel is fixedly installed on the front of the lightbox main unit, including an RS-485 terminal, a display screen, and operation buttons. The lightbox main unit includes an AC power input interface, an LED driver power supply, an LED light source, and a PCB board. An AC-DC power module, a main control chip unit, a clock module, and a dimming module are soldered onto the PCB board. The AC power input interface is connected to the AC-DC power module and the LED driver power supply for powering them. The AC-DC power module is connected to the main control chip unit. This device converts AC220V mains power to DC12V, which then powers the main control chip unit. The main control chip unit is connected to a clock module, a dimming module, a switch output module, an RS-485 terminal, a display screen, and operation buttons. The display screen provides illuminance information inside the enclosure and shows changes in the observed illuminance value. The main control chip unit receives externally programmed software via the RS-485 terminal and, combined with the time information from the clock module and the latitude and longitude information from the operation buttons, controls the output voltage of the dimming module. The dimming module is connected to the LED driver power supply, which in turn is connected to the LED light source. The dimming module controls the LED driver power supply, thereby achieving dimming control of the LED light source. The LED light source provides illumination for the lighting control equipment, simulating outdoor illuminance.

[0007] Preferably, the main control chip unit includes a main control chip IC1;

[0008] Pins 1, 9, 24, and 48 of the main control chip IC1 are connected to 3.3V, while pins 8, 23, 44, and 47 are grounded. Pin 7 of the main control chip IC1 is grounded through capacitor C21, and pin 37 is grounded through resistor R40. Pin 5 of the main control chip IC1 is connected to pin 6 through crystal oscillator Y1, and pin 5 is grounded through capacitor C7. Pin 6 is grounded through capacitor C8. Pin 27 of the main control chip IC1 outputs the P1 signal, which is a square wave signal.

[0009] Preferably, the main control chip IC1 is an STM32P030C8.

[0010] Preferably, the dimming module includes resistors R17, R24, R38, transistor VT13, jumper X6, MOSFET VT9, resistors R53 and R36, voltage amplifier chip IC8, capacitor C29, resistors R51 and R22, and MOSFET VT11.

[0011] One end of resistor R17 is connected to a square wave signal, i.e., to pin 27 of the main control chip IC1. The other end of resistor R17 is connected to the base of transistor VT13. One end of resistor R24 ​​is connected to a 10V voltage, and the other end of resistor R24 ​​is connected to the collector of transistor VT13. The emitter of transistor VT13 is grounded. The base of transistor VT13 is connected to its emitter through resistor R38. The collector of transistor VT13 is connected to one end of jumper X6. The source of MOSFET VT11 is connected to one end of jumper X6. The gate of MOSFET VT11 is connected to a 12.3V voltage through resistor R53. One end of resistor R36 is connected to the source of MOSFET VT11. The other end of resistor R36 is grounded; the drain of MOSFET VT11 is connected to signal D1; pins 1 and 2 of voltage amplifier chip IC8 are connected to the other end of jumper X6; pins 3, 6, and 7 of voltage amplifier chip IC8 are connected to signal RN1; one end of resistor R22 is connected to a 10V reference voltage, and the other end of resistor R22 is connected to the drain of MOSFET VT9; the gate of MOSFET VT9 is connected to a square wave signal, i.e., connected to pin 27 of main control chip IC1; the source of MOSFET VT9 is grounded; one end of resistor R51 is connected to the drain of MOSFET VT9, and the other end of resistor R51 is connected to pin 5 of voltage amplifier chip IC8; one end of capacitor C29 is connected to pin 5 of voltage amplifier chip IC8, and the other end of capacitor C29 is grounded.

[0012] Preferably, the voltage amplifier chip IC8 is model LM358.

[0013] Preferably, the lightbox host has a top plate, a heat dissipation window on the side, and a fan on the back. The heat dissipation window and fan are used to dissipate heat from the lightbox host. The PCB board is also equipped with a switch output module, which is connected to the main control chip unit and the fan. The main control chip unit is also used to control the start and stop of the fan through the switch output module.

[0014] Preferably, the switch output module includes a relay K1, wherein:

[0015] One end of resistor R47 is connected to signal O1, which is connected to pin 11 of the main control chip IC1. The other end of resistor R47 is connected to the base of transistor VT1. The base of transistor VT1 is connected to the emitter of transistor VT1 through resistor R33. The emitter of transistor VT1 is grounded. The collector of transistor VT1 is connected to the positive terminal of diode VD1. The negative terminal of diode VD1 is connected to 13.2V. The collector of transistor VT1 is connected to pin 2 of relay K1. Pin 1 of relay K1 is connected to 13.2V. Pins 5 and 6 of relay K1 output L1O signal. Pins 4 and 7 of relay K1 output L1I1 signal. L1O and L1I1 signals are used to control the fan (13).

[0016] Preferably, the operation panel also includes a manual dimming knob, which is used to directly output a voltage within a preset threshold range. The manual dimming knob is connected to a dimming module, which is used to control the LED driver power supply based on the voltage value fed back by the manual dimming knob, thereby realizing manual dimming control of the LED light source.

[0017] Preferably, the inner wall of the box is fixed with light-absorbing cloth, and the bottom plate light-absorbing cloth is bonded to the upper surface of the bottom plate. The light-absorbing cloth on the inner wall and the bottom plate are used to absorb interference light.

[0018] Preferably, the bottom of the lightbox main unit has a metal edging and a light diffusion plate is provided. The light diffusion plate is inserted from the top of the lightbox main unit and is fixed at the bottom of the lightbox main unit.

[0019] Compared with the prior art, this utility model has the following advantages:

[0020] This utility model discloses an automated testing device for simulating outdoor illuminance, which solves various special requirements for illuminance in the research and development of lighting control equipment. It avoids outdoor testing and prevents abnormal operation of lighting control equipment due to the lack of actual outdoor illuminance testing conditions, thereby greatly reducing the research and development time and ensuring the stability of lighting control equipment. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the internal structure of the lightbox main unit of this utility model;

[0023] Figure 3 This is a block diagram showing the internal components of the lightbox main unit of this utility model;

[0024] Figure 4 This is a circuit diagram of the dimming module of this utility model;

[0025] Figure 5 This is the circuit schematic diagram of the switch output module of this utility model;

[0026] Figure 6 This is the circuit schematic diagram of the main control chip unit of this utility model;

[0027] The components include: 1. Lightbox main unit; 2. Cabinet; 3. Base plate; 4. Display screen; 5. Manual dimming knob; 6. RS-485 terminal; 7. Operation buttons; 8. Light-absorbing cloth on the inner wall of the cabinet; 9. Light-absorbing cloth on the base plate; 10. Base; 11. Top plate; 12. Heat dissipation window; 13. Fan; 14. AC power input interface; 15. Light diffusion plate; 16. LED driver power supply; 17. LED light source; 18. AC-DC power module; 19. Main control chip unit; 20. Clock module; 21. Dimming module; 22. Switch output module; 23. PCB board. Detailed Implementation

[0028] The present invention will now be described in detail with reference to specific embodiments. It should be understood that these examples are only for illustrating the present invention and do not limit the scope of the present invention. After reading the present invention, any modifications of the present invention in various equivalent forms by those skilled in the art will fall within the scope defined by the appended claims. Example

[0029] like Figure 1 As shown, this embodiment of an automated testing device for simulating outdoor illuminance consists of three parts: a lightbox host 1, a housing 2, and a base plate 3. The top of the housing 2 is fixed to the bottom of the lightbox host 1, and the base plate 3 is located at the lower end of the housing 2.

[0030] In this embodiment, the light box host 1 and the box body 2 are connected and fixed by screw holes on the box body, and the light-absorbing cloth 8 on the inner wall of the box body 2 is fixed around the perimeter with hot melt adhesive.

[0031] The base plate 3 has a base hole in the middle for mounting bases 10 of lighting control equipment such as lighting central controllers, single-lamp controllers, and illuminance collectors. The housing 2 is fastened to the base plate 3 and the lighting control equipment. The base is used to replace different types of lighting control equipment, and the bottom 3 can also be made according to the needs of the lighting control equipment. The light-absorbing cloth 9 is glued to the upper surface of the base plate 3. In this embodiment, the light-absorbing cloth 9 is fixed with hot melt adhesive. The light-absorbing cloth 8 on the inner wall of the housing and the light-absorbing cloth 9 on the base plate are both pure black photographic grade light-absorbing cloths used to absorb interfering light.

[0032] like Figure 2As shown, the main unit 1 of the light box has a metal casing. An operation panel is fixedly mounted on the front of the main unit 1. The operation panel includes a display screen 4, operation buttons 7, a manual dimming knob 5, and an RS-485 terminal 6 for updating the device's program. The display screen and operation buttons facilitate real-time operation and allow for setting and observing changes in illuminance values ​​within the enclosure 2. Even in automatic operation mode, manual intervention can be temporarily achieved using the manual dimming knob, and historical illumination and coordinate curves can be recorded normally.

[0033] The lightbox main unit has a top plate 11, heat dissipation windows 12 on the sides, and a fan 13 on the back. The heat dissipation windows 12 and the fan 13 are used to dissipate heat from the lightbox main unit. The bottom of the lightbox main unit 1 has a metal edging and a light diffusion plate 15 is provided. The light diffusion plate 15 is inserted from the top of the lightbox main unit 1 and clipped into the bottom of the lightbox main unit 1 for bottom fixation. The light diffusion plate 15 is used to make the light source more uniform and softer, preventing inaccurate illuminance due to slight angle problems when the lighting control equipment collects the illuminance.

[0034] like Figure 3As shown, the main unit 1 of the light box includes an AC power input interface 14, an LED driver power supply 16, an LED light source 17, and a PCB board 23. An AC-DC power module 18, a main control chip unit 19, a clock module 20, a dimming module 21, and a switch output module 22 are soldered onto the PCB board. The AC power input interface 14 is connected to the AC-DC power module 18 and the LED driver power supply 16 to supply power to them. The AC-DC power module 18 is connected to the main control chip unit 19 to convert AC220V AC to DC12V and then power the main control chip unit 19. The main control chip unit 19 is connected to the clock module 20, the dimming module 21, the switch output module 22, the RS-485 terminal 6, the display screen 4, and the operation buttons 7, respectively. Screen 4 provides illuminance information inside the enclosure 2 and observes changes in illuminance values. The main control chip unit 19 receives external programming data via RS-485 terminal 6, and, in conjunction with real-time time information from clock module 20, latitude and longitude information of the device's location from operation button 7, and automatic / manual mode switching information, controls the output voltage of the dimming module 21. The external programming data received via RS-485 terminal 6 includes a second relationship lookup table of LED light source 17 voltage values ​​corresponding to outdoor illuminance, and a first relationship lookup table of time information, latitude and longitude information of location, and outdoor illuminance. The main control chip unit 19 obtains the real-time outdoor illuminance from the first relationship lookup table based on the received real-time time information and latitude and longitude information of location, and then obtains the LED light source 17 voltage value through the second relationship lookup table. The first relationship lookup table is set using existing data, and the second relationship lookup table is obtained through experimentation. For example, after the main body of the device is assembled, a lux meter is used to calibrate 100 sets of dimming voltages from 0.1 to 10V and their corresponding illuminance values.

[0035] The switch output module 22 is connected to the fan 13, and the main control chip unit 19 is also used to control the start and stop of the fan 13 through the switch output module 22. The dimming module 21 is connected to the LED driver power supply 16 and the manual dimming knob 5. The LED driver power supply 16 is connected to the LED light source 17. The manual dimming knob 5 is used to directly output a voltage within a preset threshold range. The dimming module 21 is used to control the LED driver power supply 16 based on the voltage value fed back by the manual dimming knob 5, thereby realizing manual dimming control of the LED light source 17. The voltage range within the preset threshold range is set according to the actual situation.

[0036] The LED light source 17 uses LED modules with excellent heat dissipation performance, similar to those used in streetlights. The angle of the LED module's heat sink is parallel to the angle of the fan, resulting in excellent airflow under positive pressure. When the main control chip unit 19 detects that the temperature inside the enclosure exceeds the set temperature control threshold, the system will control the output of the switch control module 22 to automatically run the fan 13 for cooling. The LED light source 17 is used to provide illumination for lighting control equipment, simulating outdoor illuminance.

[0037] like Figure 6 As shown, the main control chip unit 19 includes a main control chip IC1, and the model of the main control chip IC1 is STM32P030C8;

[0038] Pins 1, 9, 24, and 48 of the main control chip IC1 are connected to 3.3V; pins 8, 23, 44, and 47 are grounded; pin 7 of the main control chip IC1 is grounded through capacitor C21; pin 37 of the main control chip IC1 is grounded through resistor R40; pin 5 of the main control chip IC1 is connected to pin 6 of the main control chip IC1 through crystal oscillator Y1; pin 5 of the main control chip IC1 is grounded through capacitor C7; pin 6 of the main control chip IC1 is grounded through capacitor C8; pin 27 of the main control chip IC1 outputs the P1 signal; the P1 signal is a square wave signal.

[0039] like Figure 4 As shown, the dimming module 21 includes resistors R17, R24, R38, transistor VT13, jumper X6, MOSFET VT9, resistors R53 and R36, voltage amplifier chip IC8, capacitor C29, resistors R51 and R22, and MOSFET VT11; the voltage amplifier chip IC8 is model LM358.

[0040] One end of resistor R17 is connected to a square wave signal, i.e., to pin 27 of the main control chip IC1. The other end of resistor R17 is connected to the base of transistor VT13. One end of resistor R24 ​​is connected to a 10V voltage, and the other end of resistor R24 ​​is connected to the collector of transistor VT13. The emitter of transistor VT13 is grounded. The base of transistor VT13 is connected to its emitter through resistor R38. The collector of transistor VT13 is connected to one end of jumper X6. The source of MOSFET VT11 is connected to one end of jumper X6. The gate of MOSFET VT11 is connected to a 12.3V voltage through resistor R53. One end of resistor R36 is connected to the source of MOSFET VT11. The other end of resistor R36 is grounded; the drain of MOSFET VT11 is connected to signal D1; pins 1 and 2 of voltage amplifier chip IC8 are connected to the other end of jumper X6; pins 3, 6, and 7 of voltage amplifier chip IC8 are connected to signal RN1, and signals D1 and RN1 are connected to the LED driver power supply; pin 4 of voltage amplifier chip IC8 is grounded; one end of resistor R22 is connected to a 10V reference voltage, and the other end of resistor R22 is connected to the drain of MOSFET VT9. The gate of MOSFET VT9 is connected to a square wave signal, i.e., to pin 27 of main control chip IC1, and the source of MOSFET VT9 is grounded; one end of resistor R51 is connected to the drain of MOSFET VT9, and the other end of resistor R51 is connected to pin 5 of voltage amplifier chip IC8; one end of capacitor C29 is connected to pin 5 of voltage amplifier chip IC8, and the other end of capacitor C29 is grounded; the pins of voltage amplifier chip IC8 are connected to a 12.3V voltage.

[0041] The working process of the dimming module 21 is as follows: the base of the transistor VT13 receives the square wave signal transmitted by the main control chip IC1, the gate of the MOSFET VT9 receives the square wave signal transmitted by the main control chip IC1, and then processes it in the voltage amplifier chip IC8, and feeds back the D1 signal and RN1 signal to the LED driver power supply, thereby controlling the dimming of the LED light source.

[0042] like Figure 5 As shown, the circuit structure of the switch output module includes a relay K1, wherein:

[0043] One end of resistor R47 is connected to the O1 signal, i.e., to pin 11 of the main control chip IC1. The other end of resistor R47 is connected to the base of transistor VT1. The base of transistor VT1 is connected to the emitter of transistor VT1 through resistor R33. The emitter of transistor VT1 is grounded. The collector of transistor VT1 is connected to the positive terminal of diode VD1. The negative terminal of diode VD1 is connected to 13.2V. The collector of transistor VT1 is connected to pin 2 of relay K1. Pin 1 of relay K1 is connected to 13.2V. Pins 5 and 6 of relay K1 output the L1O signal, and pins 4 and 7 of relay K1 output the L1I1 signal. The L1O and L1I1 signals are used to control fan 13.

[0044] The working process of the digital output module is as follows: the relay K1 is controlled according to the O1 signal fed back by the main control chip IC1, and then the start and stop of the fan 13 are controlled through the L1O signal and the L1I1 signal.

[0045] The working process of this utility model is as follows:

[0046] (1) Install the lighting control equipment to be tested on the base of the base plate 3 and power it on;

[0047] (2) Attach the housing 2 of the fixed light box host 1 to the base plate 3 and turn on the power;

[0048] (3) The sunrise and sunset times are automatically generated by preset latitude and longitude using the operation buttons;

[0049] (4) Set the weather mode by referring to the calendar on the display screen using the operation buttons;

[0050] (5) Switch the device to automatic mode by pressing the operation button to make the device run automatically;

[0051] In automatic mode, the device will follow the program burned into the main control chip unit via the RS-485 terminal, and adjust the LED light source voltage from 0 to 10V according to the preset weather mode and its corresponding illuminance value through the dimming module, thereby realizing automated illuminance control and providing simulated outdoor illuminance for lighting control equipment.

[0052] This invention can be further expanded to include weather factors in light intensity changes. Based on the voltage value of the LED light source 17 obtained from the second relationship lookup table, the external programming program received by the RS-485 terminal 6 also includes a voltage control algorithm corresponding to the weather mode, which dims the LED light source through the main control chip unit 19. The voltage control algorithm corresponding to the weather mode includes: for stable light intensity weather, such as sunny or cloudy / rainy days, a third relationship lookup table is used. Based on the voltage value of the LED light source 17 obtained from the second relationship lookup table, the corresponding value from the third relationship lookup table is added, and then the LED light source is dimmed; for cloudy or thunderstorm weather, a random algorithm is added to the sunny and cloudy / rainy day settings. For example, on a thunderstorm night, a random voltage of 0.5 to 1V is output intermittently for 10 to 60 seconds, lasting 0.5 to 2 seconds, thereby controlling the LED light source 17 to provide simulated outdoor light intensity for the lighting control equipment. Specific settings can be adjusted and processed according to actual needs.

[0053] For example, in a city at a specific latitude and longitude, on a sunny day from 9:00 AM to 3:00 PM on October 30th, the program controls the dimming module to output a voltage of 10V. The LED lights connected to the driver power supply then receive this 10V and operate at full power, resulting in a maximum illuminance of approximately 65535 LUX. From 3:00 PM to 5:50 PM, the voltage gradually decreases until it reaches 0V, and the illuminance also gradually decreases until it reaches 0 LUX. During a thunderstorm at night, the program controls the dimming module to intermittently output a random voltage of 0.5 to 1V for 0.5 to 2 seconds every 10 to 60 seconds. This simulates the intermittent lightning during a thunderstorm, with an instantaneous illuminance of approximately 1000 to 3000 LUX.

[0054] In manual mode, this device does not automatically control changes in illuminance; manual dimming control via the manual dimming knob 5 is required. In this mode, changes in the device's output illuminance can be used to test the lighting control equipment we need to inspect.

[0055] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An automated testing device that simulates outdoor light intensity, characterized by: The lamp box host (1), the box body (2), and the bottom plate (3) are included. The bottom of the lamp box host (1) is fixed to the top of the box body (2), and the bottom plate (3) is located below the box body (2). A base hole is provided in the middle of the bottom plate (3) for mounting the base (10) of the lighting control device. The box body (2) is buckled on the bottom plate (3) and the lighting control device. An operation panel is fixedly arranged on the front of the lamp box host (1), and the operation panel includes an RS-485 terminal (6), a display screen (4), and an operation button (7). The lamp box host (1) includes a mains input interface (14), an LED driving power supply (16), an LED light source (17), and a PCB board (23). The PCB board (23) is welded and fixed with an AC-DC power supply module (18), a main control chip unit (19), a clock module (20), and a dimming module (21). The mains input interface (14) is connected with the AC-DC power supply module (18) and the LED driving power supply (16) for supplying power to the AC-DC power supply module (18) and the LED driving power supply (16). The AC-DC power supply module (18) is connected with the main control chip unit (19) for converting AC 220V into DC 12V and supplying power to the main control chip unit (19). The main control chip unit (19) is connected with the clock module (20), the dimming module (21), a switching value output module (22), the RS-485 terminal (6), the display screen (4), and the operation button (7). The display screen (4) is used to provide the illumination information inside the box body (2) and observe the change of the illumination value. The main control chip unit (19) is used to receive the external programming through the RS-485 terminal (6), combine the time information of the position of the device fed back by the clock module (20) and the latitude and longitude information of the position of the device fed back by the operation button (7), and control the output voltage value of the dimming module (21). The dimming module (21) is connected with the LED driving power supply (16), the LED driving power supply (16) is connected with the LED light source (17), the dimming module (21) is used to control the LED driving power supply (16) to realize the dimming control of the LED light source (17), and the LED light source (17) is used to provide light for the lighting control device to simulate the outdoor illumination.

2. The automated testing device simulating outdoor light intensity according to claim 1, characterized in that: The main control chip unit (19) includes a main control chip IC1. The pin 1, the pin 9, the pin 24, and the pin 48 of the main control chip IC1 are connected with 3.3V voltage, the pin 8, the pin 23, the pin 44, and the pin 47 of the main control chip IC1 are grounded, the pin 7 of the main control chip IC1 is grounded through the capacitor C21, the pin 37 of the main control chip IC1 is grounded through the resistor R40, the pin 5 of the main control chip IC1 is connected with the pin 6 of the main control chip IC1 through the crystal oscillator Y1, the pin 5 of the main control chip IC1 is grounded through the capacitor C7, the pin 6 of the main control chip IC1 is grounded through the capacitor C8, the pin 27 of the main control chip IC1 outputs a P1 signal, and the P1 signal is a square wave signal.

3. The automated testing device simulating outdoor light intensity according to claim 2, characterized in that: The model of the main control chip IC1 is STM32P030C8.

4. The automated testing device simulating outdoor light intensity according to claim 2, wherein: The dimming module (21) comprises a resistor R17, a resistor R24, a resistor R38, a triode VT13, a jumper X6, a MOS tube VT9, a resistor R53, a resistor R36, a voltage amplification chip IC8, a capacitor C29, a resistor R51, a resistor R22, a MOS tube VT11; One end of the resistor R17 is connected with a square wave signal, i.e. with pin 27 of the main control chip IC1, and the other end of the resistor R17 is connected with the base of the triode VT13. One end of the resistor R24 is connected with a 10V voltage, and the other end of the resistor R24 is connected with the collector of the triode VT13. The emitter of the triode VT13 is grounded. The base of the triode VT13 is connected with the emitter of the triode VT13 through the resistor R38. The collector of the triode VT13 is connected with one end of the jumper X6, and the source of the MOS tube VT11 is connected with one end of the jumper X6. The gate of the MOS tube VT11 is connected with a 12.3V voltage through the resistor R53. One end of the resistor R36 is connected with the source of the MOS tube VT11, and the other end of the resistor R36 is grounded. The drain of the MOS tube VT11 is connected with the D1 signal. Pin 1 and pin 2 of the voltage amplification chip IC8 are connected with the other end of the jumper X6. Pin 3, pin 6 and pin 7 of the voltage amplification chip IC8 are connected with the RN1 signal. One end of the resistor R22 is connected with a 10V reference voltage, and the other end of the resistor R22 is connected with the drain of the MOS tube VT9. The gate of the MOS tube VT9 is connected with a square wave signal, i.e. with pin 27 of the main control chip IC1. The source of the MOS tube VT9 is grounded. One end of the resistor R51 is connected with the drain of the MOS tube VT9, and the other end of the resistor R51 is connected with pin 5 of the voltage amplification chip IC8. One end of the capacitor C29 is connected with pin 5 of the voltage amplification chip IC8, and the other end of the capacitor C29 is grounded.

5. The automated testing device simulating outdoor light intensity according to claim 4, characterized in that: The model of the voltage amplification chip IC8 is LM358.

6. The automated testing device simulating outdoor light intensity according to claim 2, wherein: The lamp box host (1) has a top plate (11) on the top, a heat dissipation window (12) on the side, and a fan (13) on the back. The heat dissipation window (12) and the fan (13) are used for heat dissipation of the lamp box host. The PCB (23) is further provided with an on-off output module (22). The on-off output module (22) is connected with the main control chip unit (19) and the fan (13). The main control chip unit (19) is further used for controlling the start and stop of the fan (13) through the on-off output module (22).

7. The automated testing device simulating outdoor light intensity according to claim 6, characterized in that: The on-off output module comprises a relay K1, wherein: One end of the resistor R47 is connected with the O1 signal, that is, connected with the pin 11 of the master chip IC1, the other end of the resistor R47 is connected with the base of the transistor VT1, the base of the transistor VT1 is connected with the emitter of the transistor VT1 through the resistor R33, the emitter of the transistor VT1 is grounded, the collector of the transistor VT1 is connected with the positive terminal of the diode VD1, the negative terminal of the diode VD1 is connected with the 13.2V voltage; the collector of the transistor VT1 is connected with the pin 2 of the relay K1, the pin 1 of the relay K1 is connected with the 13.2V voltage; the pin 5 and the pin 6 of the relay K1 output the L1O signal, the pin 4 and the pin 7 of the relay K1 output the L1I1 signal, the L1O signal and the L1I1 signal are used for controlling the fan (13).

8. The automated testing device simulating outdoor light intensity according to claim 1, wherein: The operation panel further comprises a manual light adjusting knob (5), the manual light adjusting knob (5) is used for directly outputting a preset threshold range voltage, the manual light adjusting knob (5) is connected with a light adjusting module (21), the light adjusting module (21) is used for controlling the LED driving power supply (16) according to the voltage value fed back by the manual light adjusting knob (5), thereby realizing manual light adjusting control of the LED light source (17).

9. The automated testing device that simulates outdoor light intensity according to claim 1, wherein: The inner wall of the box body (2) is fixed with light absorbing cloth (8) around, the bottom plate (3) is bonded with bottom plate light absorbing cloth (9) on the upper surface, the box body inner wall light absorbing cloth (8) and the bottom plate light absorbing cloth (9) are used for absorbing interference light.

10. The automated testing device simulating outdoor light intensity according to claim 1, wherein: The lamp box host (1) is provided with a metal edge at the bottom, and a light diffusion plate (15) is arranged, the light diffusion plate (15) is put into from the top of the lamp box host (1) and is clamped at the bottom of the lamp box host (1) to realize bottom fixation.

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