A rain protection system for solar radiation equipment

Abstract

The invention discloses a rainproof system for solar radiation equipment, comprising a box, a solar radiation meter and a rain sensor installed above the box, the solar radiation equipment installed inside the box and a central control module, wherein a hatch is arranged on the box, the hatch is opened and closed by a motor control, and the central control module is respectively connected with the solar radiation meter, the rain sensor and the motor; when the solar radiation meter detects that the radiation value is lower than a preset value or the rain sensor detects that there is rainfall, when the central control module receives data from the solar radiation meter and / or the rain sensor, the motor is controlled to operate so as to control the hatch to be closed, and the solar radiation equipment stops detecting; the advantages of the invention are that the hatch is closed in time when the rain sensor detects that there is rainfall, and the waterproof effect is better; when the solar radiation meter detects that the radiation is low, the hatch is closed in time, and the observation efficiency is high, and the waterproof and observation efficiency requirements of the solar radiation equipment, a high-precision waterproof instrument, are met.

Description

Technical Field

[0001] The present invention relates to the field of rain protection for precision instruments for solar radiation observation, and more specifically to a rain protection system for solar radiation equipment. Background Art

[0002] Solar radiation refers to the energy transmitted by the sun in the form of electromagnetic waves, and the electromagnetic waves and particle flows emitted by the sun into space. The energy transmitted by solar radiation is called solar radiation energy. Although the solar radiation energy received by the earth is only one 2.2 billionth of the total radiation energy emitted by the sun into space, it is the main energy source for the movement of the earth's atmosphere and the main source of the earth's light and heat energy.

[0003] Most of the current solar radiation equipment is a precision instrument and is not waterproof. However, in order to observe effective data, it must be placed in the open air. Once it rains, it will be too late to recycle the equipment, which will cause damage to the equipment. China Patent Authorization Announcement No. CN110380351B discloses an outdoor power cabinet for precision instruments with good heat dissipation and waterproofness, including a PLC, a cabinet and a telescopic heat dissipation part, a temperature sensor is installed on the top of the cabinet, a rain sensor is installed in the cabinet, one side of the cabinet is open and a dustproof mesh plate is installed, vertical limit grooves are fixed on the two sides of the dustproof mesh plate, and limit rods are fixed on both sides of the heat dissipation part. The limit rods are clamped in the limit grooves to make the heat dissipation part clamped on the cabinet, and a vertical electric telescopic rod is embedded in the middle of the dustproof mesh plate. The lower end of the electric telescopic rod is hinged on the dustproof mesh plate, and the upper end is hinged on the inner middle of the heat dissipation part. The electric telescopic rod drives the heat dissipation part to be telescopic; the electric telescopic rod, the temperature sensor and the rain sensor are electrically connected to the PLC respectively. Compared with the prior art, the invention provides a retractable heat sink to adjust the heat sink surface to improve the heat sink efficiency, and provides a temperature sensor and a rainfall sensor to measure the temperature and the amount of rain to determine whether the heat sink should be opened. However, the invention mainly determines whether the heat sink should be opened based on the temperature and the amount of rain, and is suitable for power cabinets. When applied to solar radiation equipment, the hatch cannot be closed when it starts to rain, resulting in poor waterproof effect. The hatch cannot be closed in time when the radiation is low, the power is off, and the observation efficiency is low. Therefore, the invention is difficult to be applied to high-precision waterproof instruments such as solar radiation equipment. Summary of the invention

[0004] The technical problem to be solved by the present invention is that the prior art lacks a rainproof system for solar radiation equipment.

[0005] The present invention solves the above technical problems through the following technical means: a rainproof system for solar radiation equipment, comprising a box, a solar radiation meter and a rain sensor installed above the box, a solar radiation equipment installed inside the box, and a central control module, wherein a hatch is provided on the box, and the hatch is opened and closed by a motor, and the central control module is respectively connected to the solar radiation meter, the rain sensor, and the motor;

[0006] When the solar radiometer detects that the radiation value is lower than the preset value or the rain sensor detects rainfall, the central control module receives data from the solar radiometer and / or rain sensor, controls the motor to close the hatch, and the solar radiation equipment stops detecting. When the solar radiometer detects that the radiation value is greater than or equal to the preset value and the rain sensor detects that there is no rainfall, the central control module receives data from the solar radiometer and the rain sensor, controls the motor to open the hatch, and the solar radiation equipment starts detecting.

[0007] When the present invention is applied to solar radiation equipment, the hatch is closed in time when the rain sensor detects rainfall, and the waterproof effect is better. The hatch is closed in time when the solar radiometer detects low radiation, avoiding waste of resources caused by observation when there is no solar radiation. The observation efficiency is high, thus meeting the waterproof and observation efficiency requirements of high-precision waterproof instruments such as solar radiation equipment.

[0008] Furthermore, the solar radiation equipment rain protection system also includes a UPS power supply, an RTC module and several position sensors, the position sensor is a Hall sensor, the central control module uses an STM32 single-chip microcomputer as the main chip, the rain sensor and the several position sensors are connected to the IO port of the central control module, the solar radiation meter is connected to the P2 port of the central control module through the RS485 protocol, the UPS power supply is connected to the 220V power-off detection port of the central control module, and the RTC module is a module with a timing function built into the central control module;

[0009] After power-on, the microcontroller first detects the status of the configuration pin. When the configuration pin is at a high level, it enters the configuration mode, otherwise it starts working with the previous configuration. After the configuration is completed or it is detected that no configuration is required, the status detection begins. The microcontroller reads the data of the rain sensor, the data of the solar radiation meter, the real-time time and the 220V power supply status. When any of the conditions for closing the cabin door is met, the motor is controlled to rotate the cabin door to the closed position. When none of the conditions are met, the motor is controlled to rotate the cabin door to the preset position corresponding to the current time period.

[0010] Furthermore, the conditions for closing the hatch are: the rain sensor detects rainfall, the solar radiometer detects that the radiation is lower than a preset value, the UPS power is cut off causing the microcontroller to detect a power outage, and the RTC module built into the microcontroller detects that the current period is not an observation period.

[0011] Furthermore, the solar radiation equipment rain protection system also includes a temperature and humidity sensor, a heating plate and a fan. The temperature and humidity sensor and the heating plate are all arranged inside the box. The heating plate is connected to the IO port of the single-chip microcomputer through a relay, the fan is connected to the UPS power supply, and the temperature and humidity sensor is connected to the SPI interface of the single-chip microcomputer. The single-chip microcomputer reads the value of the temperature and humidity sensor. When the temperature is lower than 0 degrees, the heating plate is turned on, and when the temperature is higher than 0 degrees, the heating plate is turned off. The fan starts when the UPS power supply is powered.

[0012] Furthermore, a lining plate is provided at the bottom of the box, and the solar radiation equipment and the heating plate are fixed on the lining plate. Two handles are provided on the front and rear sides of the box. A cable outlet is provided on the left side of the box, and a rain cover extending outward is provided above the cable outlet. An air outlet is provided on the right side of the box, and a waterproof outer cover extending outward is provided above the air outlet. The fan is installed inside the box on the side where the air outlet is located; a flat sunshade is fixedly provided on the left side of the upper cover plate of the box, and a keyhole waterproof cover is provided at the corner where the rear side and the right side of the sunshade intersect, the keyhole waterproof cover is connected to the sunshade by a hinge, and a lock is provided on the upper cover plate below the keyhole waterproof cover; the rain sensor is fixed on the sunshade, and the solar radiation meter is fixed to the sunshade by a bracket.

[0013] Furthermore, a circular through hole is opened on the right side of the upper cover plate of the box body, a circular plate is placed in the circular through hole, the circular plate is fixedly connected to the solar radiation equipment inside the box body through a connecting piece, the diameter of the circular through hole is larger than the diameter of the circular plate, an annular light-through hole is formed between the circular through hole and the circular plate, a plurality of inner cover brackets are fixed upward on the outer edge of the annular light-through hole, an inner cover is arranged on the outer side of the inner cover bracket, the inner cover is a cylindrical cover with one-third opening, an outer cover is arranged on the outer side of the inner cover, the outer cover is a hatch, the outer cover is a cylindrical cover with one-third opening, the top of the outer cover is fixed on a tray, the tray is fixedly connected with a disc by screws, the center of the disc passes through the shaft of the motor and is fixed to the motor, the top of the inner cover has a circular notch, the outer edge of the disc is located in the circular notch and the disc does not contact the inner cover.

[0014] Furthermore, a plurality of Hall sensors are arranged on the upper cover plate at the gap between the outer cover and the inner cover.

[0015] Furthermore, a plurality of drainage holes are arranged on the bottom surface of the box body.

[0016] Furthermore, four corners of the bottom surface of the box body are respectively welded with a column foot with an internal thread, so that the box body is fixed to other profiles.

[0017] Furthermore, the solar radiation equipment rain protection system also includes a camera, which is used to capture real weather scenes and is installed facing the sky, and the RJ45 network port of the camera is connected to the network port of the central control module.

[0018] The advantages of the present invention are:

[0019] (1) When the present invention is applied to solar radiation equipment, the hatch is closed in time when the rain sensor detects rainfall, and the waterproof effect is better. When the solar radiometer detects low radiation, the hatch is closed in time to avoid wasting resources when observing when there is no solar radiation. The observation efficiency is high, thus meeting the waterproof and observation efficiency requirements of high-precision waterproof instruments such as solar radiation equipment.

[0020] (2) The single chip microcomputer of the present invention reads the data of the rain sensor, the data of the solar radiometer, the real-time time and the 220V power supply status. When any of the conditions for closing the cabin door is met, the motor is controlled to rotate the cabin door to the closed position. When none of the conditions are met, the motor is controlled to rotate the cabin door to the preset position corresponding to the current time period, thereby achieving waterproof and efficient observation at the same time.

[0021] (3) The present invention is provided with a handle to facilitate transportation of the box.

[0022] (4) The left side of the box of the present invention is a cable outlet, on which a rain cover is provided to prevent rainwater from entering from the outlet, thereby preventing direct sunlight and slowing down cable aging.

[0023] (5) The sunshade of the present invention is installed on the upper cover plate to play a role in sun protection, reduce the radiation of the sun to the box body, and reduce the temperature inside the box body.

[0024] (6) The present invention provides a lock on the box body and a keyhole waterproof cover on the lock to prevent water from leaking into the box body through the keyhole, thereby playing a further waterproof role.

[0025] (7) The inner cover of the present invention is fixed on the upper cover plate, and the outer cover is arranged on the outer side of the inner cover and can rotate relative to the inner cover. The outer cover and the inner cover are both cylindrical in shape with one-third opening. Therefore, the outer cover can be driven to rotate under the action of the motor to realize opening and closing of the cabin door at different angles. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 An electrical principle block diagram of a solar radiation meter and a rain sensor of a solar radiation equipment rain protection system provided by an embodiment of the present invention;

[0027] Figure 2 An overall electrical schematic diagram of a rain protection system for solar radiation equipment provided by an embodiment of the present invention;

[0028] Figure 3A control logic diagram of a rain protection system for solar radiation equipment provided by an embodiment of the present invention;

[0029] Figure 4 A schematic diagram of the three-dimensional structure of a rain protection system for solar radiation equipment provided by an embodiment of the present invention;

[0030] Figure 5 A structural front view of a rain protection system for solar radiation equipment provided by an embodiment of the present invention;

[0031] Figure 6 A top view of the structure of a rain protection system for solar radiation equipment provided by an embodiment of the present invention;

[0032] Figure 7 A schematic diagram of the three-dimensional structure of a rainproof system for solar radiation equipment provided by an embodiment of the present invention after removing the front panel and the outer cover;

[0033] Figure 8 A schematic diagram of the three-dimensional structure of a rainproof system for solar radiation equipment provided by an embodiment of the present invention after removing the front panel, outer cover and inner cover. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in combination with the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] The present invention is divided into two parts to introduce the scheme in detail. First, the electrical part of the solar radiation equipment rain protection system is introduced, such as Figure 1 and Figure 2 As shown, a rain protection system for solar radiation equipment includes a box 1, a solar radiation meter 2 and a rain sensor 3 installed above the box 1, a solar radiation device 4 and a central control module 5 installed inside the box 1, a UPS power supply 6, an RTC module 7, a number of position sensors 8, a temperature and humidity sensor 9, a heating plate 10 and a fan 11.

[0036] The box 1 is provided with a hatch 12, which is opened and closed by a motor 13. The central control module 5 is connected to the solar radiation meter 2, the rain sensor 3 and the motor 13 respectively; the motor 13 adopts a stepper motor, and the rotation of the motor 13 is controlled by a PWM signal. The rotation speed of the stepper motor can be adjusted by adjusting the duty cycle of the PWM signal, and the outer cover can be controlled to rotate at a slower speed, so that the low-level signal induced between the Hall sensor and the magnet is sufficient for the single-chip computer to judge. In this system, the main function of the solar radiation meter 2 is to measure the solar radiation intensity in real time. When the solar radiation value exceeds a certain value, observation begins. No observation is performed on rainy days and at night. The solar radiation meter 2 used in the present invention is a radiometer of the highest level, model MS-80M, with a relatively fast response time and good stability, which can improve the stability of the entire system.

[0037] The present invention is mainly to prevent precision instruments from being damaged by rain. The rain sensor 3 is mainly to sense rainfall. If there is water on its surface, an alarm interrupt will be generated. After receiving the interrupt, the central control module 5 will close the hatch 12 to avoid being wetted by rain. In the embodiment of the present invention, the rain sensor 3 adopts RG-11, which is a maintenance-free optical rain sensor that can be used for a variety of rainfall monitoring and control applications. Its main features are: 1) an independent, maintenance-free rain sensor with no moving parts; 2) the rain sensor 3 can be completely moved and installed in any direction; 3) the operating mode that best matches the application can be set. Of course, the present invention can also use other models of rain sensors 3, which will not be repeated here.

[0038] The central control module 5 uses an STM32 single-chip microcomputer as the main chip. The rain sensor 3 and the 5-way position sensor 8 are connected to the IO port of the central control module 5. The sensing signal of the rain sensor 3 is high level by default. When there is rainfall, it will automatically switch to high level, and the single-chip microcomputer can determine the rainfall. The position control of the hatch 12 adopts the position sensor 8. The position sensor 8 of the present invention adopts a Hall sensor. When a magnet approaches, the Hall sensor will generate a low-level signal, thereby notifying that the hatch 12 is currently in this position. The solar radiometer 2 is connected to the P2 port of the central control module 5 through the RS485 protocol. The solar radiometer 2 converts the level conversion chip into a TTL signal to the single-chip microcomputer through the RS485 interface, and the single-chip microcomputer can obtain the radiation value in real time. The UPS power supply 6 is connected to the 220V power-off detection port of the central control module 5, and the RTC module 7 is a module with a timing function built into the central control module 5; the circuit of the central control module 5 also has a backup battery to ensure that the time is not reset for 1 month. The whole device has several external input configuration parameters, including the current real-time time, the start time of the 5 hatches 12 time periods, when the configuration pin is detected to be high, it enters the recharge configuration mode, and the configured information is stored in the EEPROM. If reconfiguration is not required, just set the configuration pin low, and the previously configured information will be automatically used at startup. The main function of the UPS power supply 6 is to ensure that the equipment can still work for 30 minutes in the event of a power outage, so as to close the hatch 12, so the overall power consumption demand is not large, first use 600W, input voltage 162 ~ 268V, output voltage 220V ± 10%, built-in 12V7AH low-temperature lithium battery 1, the overall size is 300mm * 100mm * 150mm, the total weight does not exceed 5kg, light and easy to carry.

[0039] The solar radiation equipment rain protection system also includes a camera 14, which is used to shoot the real weather scene and is installed facing the sky. The RJ45 network port of the camera 14 is connected to the network port of the central control module 5. To prevent mutual obstruction, the camera 14 will be installed at a distance of about 2 meters from the equipment, and the data can be viewed in real time through the software provided by the camera 14. The basic parameters of the camera 14 are as follows: the main stream frame rate is 50Hz, 25fps (2560*1920), the resolution is 5 million, the shape is fisheye, and the communication interface is RJ45 10M / 100M network interface.

[0040] The temperature and humidity sensor 9 and the heating plate 10 are both arranged inside the box 1. The heating plate 10 is connected to the IO port of the single-chip microcomputer through a relay, the fan 11 is connected to the UPS power supply 6, the temperature and humidity sensor 9 is connected to the SPI interface of the single-chip microcomputer, and the single-chip microcomputer reads the value of the temperature and humidity sensor 9. When the temperature is lower than 0 degrees, the heating plate 10 is turned on, and when the temperature is higher than 0 degrees, the heating plate 10 is turned off. The fan 11 starts when the UPS power supply 6 is powered. The UPS power supply 6 provides a power-off protection mechanism for the entire system to avoid sudden power failures causing the central control module 5 to lose control and cause equipment damage and other consequences. The UPS power supply 6 is powered by 220VAC. The UPS power supply 6 powers the fan 11 after converting AC220V to DC12V, and then powers the central control module 5 through 12V to 5V, and powers the rain sensor 3, the solar radiation meter 2 and the motor 13 through another relay. The single chip monitors the on and off of 220V. When the 220V power is off, it will control the outer cover to rotate to the closed position, and then control the DC12V power supply to turn off, and other sensors (rain sensor, solar radiation meter 2, etc.) stop working to reduce power loss. When 220V is available again, it will start working again.

[0041] like Figure 3 As shown, the electrical principle process of the present invention is as follows: the single chip microcomputer first detects the state of the configuration pin after power-on. When the configuration pin is at a high level, it enters the configuration mode, otherwise it starts working with the previous configuration. After the configuration is completed or it is detected that no configuration is required, the state detection begins. The single chip microcomputer reads the data of the rain sensor 3, the data of the solar radiation meter 2, the real-time time and the 220V power supply status. When any of the conditions for closing the cabin door 12 is met, the motor 13 is controlled to rotate the cabin door 12 to the closed position. When none of them are met, the motor 13 is controlled to rotate the cabin door 12 to the preset position corresponding to the current time period. Among them, the conditions for closing the cabin door 12 are: the rain sensor 3 detects rainfall, the solar radiation meter 2 detects that the radiation is lower than the preset value, the UPS power supply 6 is powered off, causing the single chip microcomputer to detect power failure, and the RTC module 7 built into the single chip microcomputer detects that the current is a non-observation period.

[0042] The following introduces the mechanical structure of the solar radiation equipment rain protection system, such as Figures 4 to 8 As shown, the box body 1 is made of sheet metal material, and the size of the box body 1 is 1120mm*620mm*438.5mm. A lining plate 15 is provided at the bottom of the box body 1. A heating plate fixing plate is fixed vertically upward on the left side of the lining plate 15. The heating plate 10 is attached and fixed on the heating plate fixing plate. The solar radiation device 4 is fixed on the lining plate 15 and is located on the right side of the heating plate 10. There are 4 long slots (not shown) on the lining plate 15 for installing 4 radiation device column feet 16. The position of the radiation device column feet 16 can be adjusted forward and backward to adapt to solar radiation devices 4 of different sizes. The column feet also play the role of raising the equipment to prevent it from being soaked in water.

[0043] Two handles 17 are provided on the front and rear sides of the box body 1, a cable outlet (not marked in the figure) is provided on the left side of the box body 1, and a rain cover 18 extending outward is provided above the cable outlet, an air outlet (not marked in the figure) is provided on the right side of the box body 1, and a waterproof outer cover 19 extending outward is provided above the air outlet, and the fan 11 is installed inside the box body 1 on the side where the air outlet is located; a flat sunshade 20 is fixed on the left side of the upper cover plate of the box body 1 by screws, and a keyhole waterproof cover 21 is provided at the corner where the rear side and the right side of the sunshade 20 intersect, the lock buckle is not shown in the figure, and the lock buckle is located at the front side of the box body 1, the keyhole waterproof cover 21 is connected to the sunshade 20 by a hinge, and a lock is provided on the upper cover plate below the keyhole waterproof cover; the rain sensor 3 is fixed on the sunshade 20, and the solar radiation meter 2 is fixed on the sunshade 20 by a bracket.

[0044] A circular through hole is opened on the right side of the upper cover plate of the box body 1, and a circular plate 22 is placed in the circular through hole. The circular plate 22 is fixedly connected to the solar radiation device 4 inside the box body 1 through a connecting piece. The diameter of the circular through hole is larger than the diameter of the circular plate 22. An annular light-through hole is formed between the circular through hole and the circular plate 22. A plurality of inner cover brackets 23 are fixed upward on the outer edge of the annular light-through hole. An inner cover 24 is provided on the outer side of the inner cover bracket 23. The inner cover 24 is a cylindrical cover with one-third opening. An outer cover is provided on the outer side of the inner cover 24. The outer cover is the hatch 12. The hatch 12 is a cylindrical cover with one-third opening. The top of the hatch 12 is fixed on a tray 25. The tray 25 is fixedly connected with a disc 26 by screws. The center of the disc 26 passes through the shaft of the motor 13 and is fixed on the motor 13. The top of the inner cover 24 has a circular notch, and the outer edge of the disc 26 is located in the circular notch and the disc 26 does not contact the inner cover 24. A plurality of Hall sensors are arranged on the upper cover plate at the gap between the hatch 12 and the inner cover 24 .

[0045] The bottom surface of the box body 1 is provided with 8 drainage holes to prevent water from entering the box body 1. The water can be drained out in time to avoid damage to the equipment.

[0046] The four corners of the bottom surface of the box body 1 are respectively welded with a column foot with an internal thread, so that the box body 1 can be fixed to other profiles.

[0047] Through the above technical scheme, when the present invention is applied to the solar radiation equipment 4, the rain sensor 3 will close the hatch 12 in time when it detects rainfall, and the waterproof effect is better. When the solar radiometer 2 detects low radiation, the hatch 12 is closed in time to avoid waste of resources caused by observation when there is no solar radiation. The observation efficiency is high, thus meeting the waterproof and observation efficiency requirements of the solar radiation equipment 4, a high-precision waterproof instrument.

[0048] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those 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. However, these 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 invention.

Claims

1. A rain protection system for solar radiation equipment, characterized in that: It includes a box, a solar radiation meter and a rain sensor installed on the top of the box, a solar radiation device installed inside the box, and a central control module. The box is provided with a door, which is opened and closed by a motor. The central control module is connected to the solar radiation meter, the rain sensor, and the motor respectively. When the solar radiometer detects that the radiation value is lower than the preset value or the rain sensor detects that there is rainfall, the central control module receives data from the solar radiometer and / or the rain sensor, controls the motor to operate, thereby controlling the hatch to close, and the solar radiation device stops detecting; when the solar radiometer detects that the radiation value is greater than or equal to the preset value and the rain sensor detects that there is no rainfall, the central control module receives data from the solar radiometer and the rain sensor, controls the motor to operate, thereby controlling the hatch to open, and the solar radiation device starts detecting; A circular through hole is provided on the right side of the upper cover plate of the box body, a circular plate is placed in the circular through hole, the circular plate is fixedly connected to the solar radiation equipment inside the box body through a connecting piece, the diameter of the circular through hole is larger than the diameter of the circular plate, an annular light-through hole is formed between the circular through hole and the circular plate, a plurality of inner cover brackets are fixed upward on the outer edge of the annular light-through hole, an inner cover is provided on the outer side of the inner cover bracket, the inner cover is a cylindrical cover with one-third opening, an outer cover is provided on the outer side of the inner cover, the outer cover is a hatch, the outer cover is a cylindrical cover with one-third opening, the top of the outer cover is fixed on a tray, the tray is fixedly connected with a disc by screws, the center of the disc passes through the shaft of the motor and is fixed to the motor, the top of the inner cover has a circular notch, the outer edge of the disc is located in the circular notch and the disc does not contact the inner cover.

2. A rain protection system for solar radiation equipment according to claim 1, characterized in that: It also includes a UPS power supply, an RTC module and several position sensors, wherein the position sensor is a Hall sensor, the central control module uses an STM32 single-chip microcomputer as a main chip, the rain sensor and the several position sensors are connected to the IO port of the central control module, the solar radiation meter is connected to the P2 port of the central control module through the RS485 protocol, the UPS power supply is connected to the 220V power failure detection port of the central control module, and the RTC module is a module with a timing function built into the central control module; After power-on, the microcontroller first detects the status of the configuration pin. When the configuration pin is at a high level, it enters the configuration mode, otherwise it starts working with the previous configuration. After the configuration is completed or it is detected that no configuration is required, the status detection begins. The microcontroller reads the data of the rain sensor, the data of the solar radiation meter, the real-time time and the 220V power supply status. When any of the conditions for closing the cabin door is met, the motor is controlled to rotate the cabin door to the closed position. When none of the conditions are met, the motor is controlled to rotate the cabin door to the preset position corresponding to the current time period.

3. A rain protection system for solar radiation equipment according to claim 2, characterized in that: The conditions for closing the hatch are: the rain sensor detects rainfall, the solar radiometer detects that the radiation is lower than a preset value, the UPS power is cut off causing the microcontroller to detect a power outage, and the RTC module built into the microcontroller detects that the current period is not an observation period.

4. A rain protection system for solar radiation equipment according to claim 2, characterized in that: It also includes a temperature and humidity sensor, a heating plate and a fan. The temperature and humidity sensor and the heating plate are all arranged inside the box. The heating plate is connected to the IO port of the single-chip microcomputer through a relay, the fan is connected to a UPS power supply, and the temperature and humidity sensor is connected to the SPI interface of the single-chip microcomputer. The single-chip microcomputer reads the value of the temperature and humidity sensor. When the temperature is lower than 0 degrees, the heating plate is turned on. When the temperature is higher than 0 degrees, the heating plate is turned off. The fan starts when the UPS power supply is powered.

5. A rain protection system for solar radiation equipment according to claim 4, characterized in that: A lining plate is provided at the bottom of the box, and the solar radiation equipment and the heating plate are fixed on the lining plate. Two handles are provided on the front and rear sides of the box. A cable outlet is provided on the left side of the box, and a rain cover extending outward is provided above the cable outlet. An air outlet is provided on the right side of the box, and a waterproof outer cover extending outward is provided above the air outlet. The fan is installed inside the box on the side where the air outlet is located; a flat sunshade is fixedly provided on the left side of the upper cover plate of the box, and a keyhole waterproof cover is provided at the corner where the rear side and the right side of the sunshade intersect, the keyhole waterproof cover is connected to the sunshade by a hinge, and a lock is provided on the upper cover plate below the keyhole waterproof cover; the rain sensor is fixed on the sunshade, and the solar radiation meter is fixed to the sunshade by a bracket.

6. A rain protection system for solar radiation equipment according to claim 1, characterized in that: A plurality of Hall sensors are arranged on the upper cover plate at the gap between the outer cover and the inner cover.

7. A rain protection system for solar radiation equipment according to claim 1, characterized in that: The bottom surface of the box body is provided with a plurality of drainage holes.

8. A rain protection system for solar radiation equipment according to claim 1, characterized in that: The four corners of the bottom surface of the box body are respectively welded with a column foot with an internal thread, so that the box body is fixed to other profiles.

9. A rain protection system for solar radiation equipment according to claim 1, characterized in that: It also includes a camera, which is used to shoot real weather scenes and is installed facing the sky. The RJ45 network port of the camera is connected to the network port of the central control module.

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