Photovoltaic support cleaning system

Abstract

The utility model provides a photovoltaic support cleaning system which comprises an angle acquisition system, the angle acquisition system comprises dip angle measuring circuits, the dip angle measuring circuits are installed on photovoltaic supports and used for acquiring angle information of the photovoltaic supports, each photovoltaic support is provided with a dip angle measuring circuit, in addition, the photovoltaic support cleaning system further comprises cleaning equipment, and the cleaning equipment is connected with the dip angle measuring circuits and used for collecting the angle information of the photovoltaic supports. The cleaning equipment is installed on a photovoltaic support and used for cleaning a photovoltaic module installed on the photovoltaic support, the cleaning equipment comprises a control circuit, the control circuit is in communication connection with an angle acquisition system, and angle information of the adjacent photovoltaic support is read through an inclination angle measuring circuit; and whether the cleaning equipment can pass through or not is identified according to the angle difference between the photovoltaic support where the cleaning equipment is located and the adjacent photovoltaic support. By sensing the angle information of the next photovoltaic support in advance, automatic cleaning and obstacle avoidance are achieved, faults are reduced, the maintenance cost is reduced, the downtime is shortened, and the cleaning efficiency and the energy use efficiency are improved.

Description

Technical Field

[0001] The present application relates to the field of solar photovoltaic technology, and in particular to a photovoltaic support cleaning system. Background Art

[0002] In solar photovoltaic power generation systems, automated cleaning equipment plays a vital role, regularly removing dust and impurities from the surface of photovoltaic panels to maximize solar energy conversion efficiency. However, automated cleaning equipment still has certain shortcomings in terms of intelligent decision-making and adaptability.

[0003] Currently, the performance and safety of automated cleaning equipment are impacted by a variety of factors. Traditional equipment often lacks effective response mechanisms when a fixed support suddenly collapses during operation, or when a tracking support fails to adjust to the desired angle. In these situations, the cleaning equipment can easily become stuck on the bridge between PV panels, preventing it from continuing forward or returning safely. It can also cause malfunctions due to power exhaustion or system overload. In severe cases, it can even trigger safety alarms, disrupting the normal operation of the entire PV plant. Utility Model Content

[0004] The purpose of this application is to provide a photovoltaic bracket cleaning system. Through data interaction between the cleaning equipment and the angle acquisition system, the cleaning equipment determines whether it can pass based on the angle information of the photovoltaic bracket, thereby realizing automatic cleaning and obstacle avoidance, reducing the occurrence of faults, reducing maintenance costs and downtime, and improving cleaning efficiency and energy utilization efficiency.

[0005] The technical solutions provided in this application are as follows:

[0006] The present application provides a photovoltaic bracket cleaning system, comprising:

[0007] An angle acquisition system, including an inclination measurement circuit, which is installed on the photovoltaic bracket to collect angle information of the photovoltaic bracket; each photovoltaic bracket is equipped with an inclination measurement circuit;

[0008] Cleaning equipment, installed on the photovoltaic bracket, used to clean the photovoltaic components installed on the photovoltaic bracket;

[0009] The cleaning device includes a control circuit, which is communicated with the angle acquisition system and reads the angle information of adjacent photovoltaic brackets through the inclination measurement circuit, and identifies whether the cleaning device can pass based on the angle difference between the photovoltaic bracket where the cleaning device is located and the adjacent photovoltaic bracket.

[0010] By communicating with the angle acquisition system, the cleaning equipment can receive the angle information of adjacent photovoltaic brackets collected by the angle acquisition system in real time, and identify whether it can pass through the adjacent photovoltaic bracket based on the angle difference between its own photovoltaic bracket and the adjacent photovoltaic bracket, thereby avoiding collision and damage to the equipment, improving cleaning efficiency, reducing human intervention, and reducing maintenance labor costs.

[0011] Furthermore, the angle acquisition system also includes:

[0012] The power pin circuit includes a power supply pin and a power output end. The power supply pin is used to connect to the power output end of a photovoltaic module placed outside the angle acquisition system; the power output end is connected to any one or all of the inclination measurement circuit, processing circuit, and communication circuit, and is used to power any one or all of the inclination measurement circuit, processing circuit, and communication circuit.

[0013] By integrating the power pin circuit, the angle acquisition system can obtain electrical energy from external photovoltaic modules and power any or all of its internal circuits, enabling the angle acquisition system to operate stably and improving the system's reliability and autonomous operation capabilities.

[0014] Furthermore, the angle acquisition system also includes:

[0015] An energy storage circuit is connected to the power output terminal and is used to store the electric energy outputted from the power output terminal into the energy storage circuit;

[0016] The energy storage circuit is connected to any one or all of the tilt measurement circuit, processing circuit, and communication circuit, and is used to switch with the power output end and power any one or all of the tilt measurement circuit, processing circuit, and communication circuit.

[0017] By integrating the energy storage circuit, effective storage and on-demand release of electric energy are achieved, ensuring the stability and reliability of power supply and reducing dependence on external power sources.

[0018] Furthermore, the angle acquisition system also includes:

[0019] The step-down circuit is connected to the power output terminal and is used to step down the electric energy outputted by the power output terminal and to provide the stepped-down electric energy to subsequent circuits for use or to store it in the energy storage circuit.

[0020] By integrating a step-down circuit, the higher solar voltage output by the external photovoltaic module is converted into a stable low-voltage power supply suitable for the angle collection system, improving the energy utilization efficiency of the system and reducing potential damage caused by voltage mismatch.

[0021] Furthermore, the energy storage circuit includes:

[0022] Interconnected charge and discharge control subcircuits and rechargeable batteries;

[0023] The charge and discharge control subcircuit controls the power output terminal to charge the rechargeable battery;

[0024] or,

[0025] The charge and discharge control subcircuit controls the release of electric energy from the rechargeable battery to any one or all of the inclination measurement circuit, the processing circuit, and the communication circuit.

[0026] By integrating the charge and discharge control subcircuit and the recyclable rechargeable battery, the recyclable rechargeable battery can be charged through the charge and discharge control subcircuit when there is sufficient solar energy, and the recyclable rechargeable battery can be discharged through the charge and discharge control subcircuit when there is insufficient solar energy, thereby achieving effective storage and reasonable distribution of energy and ensuring that the load can obtain a stable power supply at any time period.

[0027] Furthermore, the charge and discharge control subcircuit includes:

[0028] The bidirectional diode controls the power output end to charge the rechargeable battery when the bidirectional diode is in a first state; and controls the release of electric energy from the rechargeable battery when the bidirectional diode is in a second state.

[0029] Furthermore, the step-down circuit includes:

[0030] A filter circuit is connected to the power output terminal and is used to reduce noise interference of the electric energy converted by the photovoltaic components placed outside the angle acquisition system;

[0031] The voltage stabilizing chip is connected to the filter circuit to stably output the electric energy converted by the photovoltaic module outside the angle acquisition system into a voltage of a set volt value.

[0032] By integrating filtering circuits and voltage stabilizing chips, noise and voltage fluctuations can be effectively filtered out to ensure the purity and stability of the output voltage.

[0033] Furthermore, the angle acquisition system also includes:

[0034] The processing circuit is connected to the tilt angle measurement circuit and controls the tilt angle measurement circuit to collect angle information;

[0035] The communication circuit is connected to the processing circuit, and the processing circuit transmits the angle information through the communication circuit.

[0036] Furthermore, the tilt measurement circuit includes a tilt chip, and the processing circuit includes an MCU processing chip;

[0037] The communication pin of the tilt chip is connected to the communication pin of the MCU processing chip, and the control pin of the tilt chip is connected to the control pin of the MCU processing chip.

[0038] Furthermore, the communication circuit includes a wireless communication chip; the communication pin, control pin, and signal pin of the wireless communication chip are connected to the corresponding pins of the MCU processing chip.

[0039] A photovoltaic bracket cleaning system provided by the present application utilizes an inclination measurement circuit to collect the angle information of each photovoltaic bracket. Before the cleaning device moves from one photovoltaic bracket to another, it reads the angle information of the adjacent photovoltaic bracket and accurately determines whether the cleaning device can pass based on the angle difference between the photovoltaic bracket where the cleaning device is located and the adjacent photovoltaic bracket. This reduces the possibility of failure of the cleaning device, reduces maintenance costs and downtime, and improves cleaning efficiency and energy utilization efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The preferred embodiment will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of a photovoltaic bracket cleaning system.

[0041] Figure 1 is a flow chart of an embodiment of an angle acquisition system of the present application;

[0042] Figure 2 This is a usage scenario diagram of an angle acquisition system of the present application;

[0043] Figure 3 This is a circuit structure diagram of a tilt measurement circuit of an angle acquisition system of the present application;

[0044] Figure 4 This is a circuit structure diagram of a processing circuit of an angle acquisition system of the present application;

[0045] Figure 5 This is a circuit structure diagram of a communication circuit of an angle acquisition system of the present application;

[0046] Figure 6 This is a circuit diagram of a power management circuit of an angle acquisition system of the present application; DETAILED DESCRIPTION

[0047] In the following description, specific details such as specific system structures and technologies are provided for illustration rather than limitation to facilitate a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid obstructing the description of the present application with unnecessary details.

[0048] It will be understood that when used in this specification and the appended claims, the term "comprising" indicates the presence of the described features, integers, steps, operations, elements and / or components, but does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or collections.

[0049] It should be further understood that the term "and / or" used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

[0050] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0051] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the specific implementation methods of the present application will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without inventive work.

[0052] In solar photovoltaic power generation systems, cleaning equipment (also known as cleaning equipment) plays a vital role, responsible for regularly cleaning dust and impurities on the surface of photovoltaic modules to ensure maximum solar energy conversion efficiency. Currently, the performance and safety of automated cleaning equipment are affected by many factors when performing tasks. Specifically, when the cleaning equipment encounters a sudden collapse of the fixed bracket during its movement, or the tracking bracket fails to accurately adjust to the expected angle, the cleaning equipment is very likely to be trapped on the bridge between photovoltaic modules, which not only prevents the cleaning equipment from moving forward or returning safely, but may also cause failures due to power exhaustion or system overload. In severe cases, it may even trigger a safety alarm, affecting the normal operation of the entire photovoltaic power station.

[0053] Based on the above problems, there is an urgent need in the existing technology to enable automated cleaning equipment to have independent judgment capabilities and decision-making mechanisms when encountering unforeseen obstacles or abnormal bracket angles. Specifically, the equipment should be able to predict and analyze the angle state of the next bracket and decide whether to continue trying to cross the obstacle or return safely, thereby avoiding unnecessary downtime and accidents, ensuring the smooth progress of the cleaning task, and protecting the safety of equipment and personnel.

[0054] Therefore, the present application provides a photovoltaic rack cleaning system, comprising a cleaning device and an angle acquisition system. Before the cleaning device moves from one photovoltaic rack to another, it reads the angle information of the adjacent photovoltaic racks and accurately determines whether the cleaning device can pass based on the angle difference between the photovoltaic rack where the cleaning device is located and the adjacent photovoltaic racks, thereby reducing the possibility of malfunction of the cleaning device.

[0055] The angle acquisition system accurately captures the angle of the photovoltaic mounts. Furthermore, it utilizes an integrated photovoltaic energy conversion module and recyclable battery pack to achieve energy storage and self-sufficiency. Furthermore, wireless communication ensures real-time data transmission, combining high performance with cost-effectiveness.

[0056] The following is a description with reference to the accompanying drawings:

[0057] In one embodiment, Figure 1 and Figure 2 As shown, a photovoltaic rack cleaning system 100 is deployed in a photovoltaic array. The photovoltaic array includes multiple photovoltaic racks 130 arranged in an array. Each photovoltaic rack 130 is fixed with a solar photovoltaic module, and each photovoltaic rack 130 is equipped with an angle acquisition system 120. A cleaning device 110 is mounted on the photovoltaic rack 130 and is used to clean the photovoltaic modules mounted on the photovoltaic rack 130. When multiple photovoltaic racks 130 are arranged in parallel or parallel, adjacent photovoltaic racks 130 are connected by a bridge 140.

[0058] The angle acquisition system 120 includes a tilt measurement circuit 121 . The tilt measurement circuit 121 is installed on the photovoltaic bracket 130 to collect angle information of the photovoltaic bracket 130 . Each photovoltaic bracket is equipped with a tilt measurement circuit.

[0059] The cleaning device 110 includes a control circuit, which is communicated with the angle acquisition system, and reads the angle information of adjacent photovoltaic brackets through the inclination measurement circuit, and identifies whether the cleaning device can pass based on the angle difference between the photovoltaic bracket where the cleaning device is located and the adjacent photovoltaic bracket.

[0060] When cleaning device 110 is located between two groups of photovoltaic racks 130, it obtains angle information of the photovoltaic racks 130 measured by angle acquisition system 120. The control circuit of cleaning device 110 then analyzes the angle information of the photovoltaic racks 130 and calculates the angle difference between adjacent photovoltaic racks 130. This information determines whether cleaning device 110 should pass through the area or return, thus preventing collisions between cleaning device 110 and photovoltaic racks 130. Through real-time angle measurement and intelligent decision-making, cleaning device 110 is effectively prevented from contacting unstable photovoltaic racks 130 and causing damage, significantly reducing the risk of equipment damage, while also protecting the infrastructure of the photovoltaic power station from secondary damage and reducing the need for repairs due to equipment failures.

[0061] In one embodiment, the inclination measurement circuit 121 can also cooperate with the processing circuit 122 to collect the angle information of the photovoltaic bracket. The inclination measurement circuit 121 is connected to the processing circuit 122, and the processing circuit 122 sends an angle collection instruction. After receiving the angle collection instruction, the inclination measurement circuit 121 collects and feeds back the angle information of the photovoltaic bracket 130. The processing circuit 122 receives the angle information and cooperates with the communication circuit 123 to transmit data, wherein the communication circuit can be a wireless communication method or a wired communication method to transmit the angle information to the control circuit. Among them, the wireless communication method allows the cleaning device 110 to exchange data within a certain range without physical contact, thereby realizing remote control, improving the flexibility of the system, and the level of security and intelligent management, while reducing costs and maintenance difficulties.

[0062] In one embodiment, the power supply for the angle acquisition system can be provided by a photovoltaic module external to the angle acquisition system. Specifically, the angle acquisition system is equipped with a power management system to ensure the continuous and stable operation of the system. The power management system includes: a power pin circuit 124, which includes a power supply pin and a power output terminal. The power supply pin is used to connect to the output terminal of the power converted by the photovoltaic module external to the angle acquisition system. The power output terminal is connected to any one or all of the inclination measurement circuit 121, the processing circuit 122, and the communication circuit 123, and is used to power any one or all of the inclination measurement circuit 121, the processing circuit 122, and the communication circuit 123.

[0063] Specifically, the power supply pin P1 of the power supply pin circuit 124 serves as a receiving port for photovoltaic component energy, and is responsible for receiving the electrical energy converted by the photovoltaic component connected to the photovoltaic bracket and inputting the electrical energy into the angle acquisition system 120 .

[0064] When there is sufficient sunlight, the photovoltaic module converts solar energy into electrical energy and inputs it into the system through the power pin circuit. When there is insufficient sunlight, there is no solar energy for the photovoltaic module to directly convert into electrical energy. In order to overcome the limitation of sunlight time, the system further integrates an energy storage circuit 125.

[0065] In one embodiment, the power management system can also be an integrated energy conversion and storage solution for efficiently utilizing the renewable energy generated by photovoltaic modules. The power management system in angle acquisition system 120 also includes an energy storage circuit 125, which is connected to the power output and stores electrical energy in energy storage circuit 125. Energy storage circuit 125 is connected to any one or all of the inclination measurement circuit 121, processing circuit 122, and communication circuit 123, and is used to switch with the power output and power any one or all of these circuits. In this embodiment, energy storage circuit 125 is used to store excess electrical energy during the day and release the stored energy at night or when there is insufficient light, ensuring a continuous and stable circuit supply for the system.

[0066] In one embodiment, Figure 6 As shown, the energy storage circuit 125 includes: a charge and discharge control subcircuit and a recyclable rechargeable battery that are interconnected. The charge and discharge control subcircuit controls the power output end to charge the recyclable rechargeable battery; or the charge and discharge control subcircuit controls the release of electrical energy from the recyclable rechargeable battery to any one or all of the inclination measurement circuit 121, the processing circuit 122, and the communication circuit 123 to power them. By integrating the charge and discharge control subcircuit and the recyclable rechargeable battery, the charge and discharge control subcircuit can be used to charge the recyclable rechargeable battery when solar energy is sufficient, and can be used to control the discharge of the recyclable rechargeable battery when solar energy is insufficient, thereby achieving effective storage and reasonable distribution of energy and ensuring a stable power supply to the load at any time period.

[0067] In one embodiment, the charge and discharge control subcircuit includes a bidirectional diode D1. When the bidirectional diode D1 is in a first state, the power output end is controlled to charge the rechargeable battery; when the bidirectional diode D1 is in a second state, the power release of the rechargeable battery is controlled.

[0068] Specifically, the charge-discharge control subcircuit within energy storage circuit 125 is equipped with a bidirectional diode D1, which provides reverse voltage protection. This prevents the rechargeable battery within energy storage circuit 125 from supplying power to components in the upstream circuit, while also preventing damage to the power supply or upstream circuit. When the photovoltaic module converts solar energy into electrical energy, bidirectional diode D1 is in a first state, allowing the converted electrical energy to charge the rechargeable battery. When the photovoltaic module is not generating electricity, bidirectional diode D1 is in a second state, allowing the rechargeable battery to discharge energy into the downstream circuit.

[0069] In one embodiment, Figure 6 As shown, the angle acquisition system 120 also includes a step-down circuit 126, which is connected to the power output end and is used to step down the electric energy output from the power output end, and is also used to supply the stepped-down electric energy to subsequent circuits or store it in the energy storage circuit 125, thereby converting the higher solar voltage output by the external photovoltaic module into a stable low-voltage power supply suitable for the angle acquisition system, improving the energy utilization efficiency of the system and reducing potential damage caused by voltage mismatch.

[0070] In one embodiment, the step-down circuit 126 includes: a filter circuit connected to the power output end, used to reduce noise interference of the electric energy converted by the photovoltaic component external to the angle acquisition system; a voltage regulator chip VR1, connected to the filter circuit, which stabilizes the electric energy converted by the photovoltaic component external to the angle acquisition system and outputs it as a power supply voltage of a set volt value.

[0071] Specifically, in this embodiment, the core component of step-down circuit 126 is the voltage regulator chip VR1, which is responsible for adjusting the input higher voltage to the required lower stable voltage. On the input side of voltage regulator chip VR1, i.e., the input terminal, the input terminal filtering circuit consists of three capacitors C1, C2, and C3 connected in parallel. This design increases the equivalent capacitance value, which can more effectively absorb and filter high-frequency noise and voltage fluctuations from photovoltaic modules or other power sources. The combination of parallel capacitors provides powerful filtering capabilities, helping to ensure a smoother voltage signal received by voltage regulator chip VR1 and reducing the impact of transient interference on circuit performance.

[0072] On the output side of voltage regulator chip VR1, the output filter circuit also uses two capacitors, C4 and C5, in parallel. This parallel capacitor filter circuit further improves the purity of the output voltage, effectively suppressing low-frequency noise and ripple, ensuring high-quality power signals received by downstream circuits or loads.

[0073] In summary, by using a filter circuit consisting of capacitors in parallel on both sides of the voltage regulator chip VR1, the buck circuit can achieve comprehensive optimization of the input and output voltage signals, effectively filtering out all kinds of noise and fluctuations, ensuring that the system can provide stable and pure power under various operating conditions, thereby significantly improving the performance and reliability of the photovoltaic power supply system.

[0074] In one embodiment, the following illustrates the interconnection relationships between the chips included in each circuit. For example, the tilt measurement circuit 121 includes a tilt chip U1, the processing circuit 122 includes an MCU processing chip U2, and the communication circuit 123 includes a wireless communication chip U3. The communication pin of the tilt chip U1 is connected to the communication pin of the MCU processing chip U2, and the control pin of the tilt chip U1 is connected to the control pin of the MCU processing chip U2. The communication pin, control pin, and signal pin of the wireless communication chip U3 are connected to the corresponding pins of the MCU processing chip.

[0075] like Figure 3 and Figure 4 As shown, the SDA pin of the tilt chip U1 is connected to the P3.4 / ADC12 / T0 pin of the MCU processing chip U2, the SDA / SA0 pin of the tilt chip U1 is connected to the P3.3 / ADC11 / INT1 pin of the MCU processing chip U2, the SCL pin of the tilt chip U1 is connected to the P3.2 / ADC10 / INT0 pin of the MCU processing chip U2, and the CS pin of the tilt chip U1 is connected to the P3.5 / ADC13 / T1 pin of the MCU processing chip U2.

[0076] In addition, a decoupling capacitor is connected to the VDD pin of the tilt chip U1 for power decoupling and filtering of the entire chip to ensure stable power supply to the core logic circuit of the chip. A decoupling capacitor is connected to the VDDIO pin and GND pin of the tilt chip U1 to stabilize the power supply of the I / O circuit, filter out noise on the power line, and provide instantaneous current requirements, thereby ensuring the integrity of the I / O signal and reducing electromagnetic interference.

[0077] In one embodiment, the MCU processing chip U2 sets the P3.5 / ADC13 / T1 pin to a low level to select the inclination chip U1, making it ready to receive commands or data. The MCU processing chip U2 sends a command to collect angle information to the inclination chip U1 through the P3.4 / ADC12 / T0 pin. The inclination chip U1 returns the angle information through the P3.3 / ADC11 / INT1 pin. At the same time, the MCU processing chip U2 controls the P3.2 / ADC10 / INT0 pin to synchronize the reception of angle data.

[0078] like Figure 4 and Figure 5As shown, the P09 tube corner of the wireless communication chip U3 is connected to the CCP0 / ADC1 / P1.1 pin of the MCU processing chip U2, the P10 tube corner of the wireless communication chip U3 is connected to the CCP1 / ADC0 / P1.0 pin of the MCU processing chip U2, the P02 tube corner of the wireless communication chip U3 is connected to the TXD_3 / ADC7 / P1.7 pin of the MCU processing chip U2, the P32 tube corner of the wireless communication chip U3 is connected to the P5.5 pin of the MCU processing chip U2, the P17 tube corner of the wireless communication chip U3 is connected to the P3.7 / INT3 / TXD_2 pin of the MCU processing chip U2, and the P07 tube corner of the wireless communication chip U3 is connected to the RXD_3 / ADC6 / P1.6 pin of the MCU processing chip U2.

[0079] In addition, a decoupling capacitor is integrated between the GND / AGND and MCLKO / RST / P5.4 pins of the wireless communication chip U3 to provide transient current support for the wireless communication chip U3 and suppress high-frequency noise on the power line.

[0080] In one embodiment, the MCU processing chip U2 initializes the wireless communication chip U3 through the TXD_3 / ADC7 / P1.7 pin and the P3.7 / INT3 / TXD_2 pin to ensure that the wireless communication chip U3 enters the correct operating mode. Then the MCU processing chip U2 controls the wireless communication chip U3 to enter the connection mode, waits for or actively searches for the cleaning device, and establishes a connection. When the connection is established, the MCU processing chip U2 and the wireless communication chip U3 perform bidirectional data transmission through the USART. The MCU processing chip U2 receives the status message of the wireless communication chip U3 and monitors the connection status of the cleaning device. According to the status feedback, the MCU processing chip U2 can dynamically adjust the behavior of the wireless communication chip U3, such as disconnecting and reconfiguring parameters.

[0081] The cleaning device 110 is connected to the angle acquisition system 120 via wireless communication, which enables remote data collection, improves the intelligence and autonomy of the device, and enhances its adaptability and safety in complex environments.

[0082] The power management system of the angle acquisition system 120 can directly use the external photovoltaic modules to convert solar energy into electrical energy for power supply when there is sufficient sunlight. It can also convert solar energy into electrical energy for storage by the external photovoltaic modules, so that it can use the stored electrical energy for power supply at night or when there is insufficient sunlight and there is no solar energy for the photovoltaic modules to directly convert into electrical energy. Figure 6 As shown, the power management system includes a power pin circuit 124 , a voltage reduction circuit 126 , and an energy storage circuit 125 .

[0083] The P1 port, the input end can be connected to the power output end converted by the photovoltaic component of the external angle acquisition system. The P1 output end is connected to the input filter circuit, which is used to condition the power signal generated by the photovoltaic component. The P1 output end is connected to GND and EARTH through a resistor R1 to provide a signal reference position to ensure the accuracy of signal measurement and play a certain protective role for the circuit.

[0084] The input filter circuit can be connected to the P1 port and includes a polar capacitor C1 and two non-polar capacitors C2 and C3. The capacitors are connected in parallel. The polar capacitor C1 is used for filtering the low-frequency part, and the non-polar capacitors C2 and C3 are used for filtering the high-frequency part. This connection method combines the advantages of the polar capacitor C1 and the non-polar capacitors C2 and C3 to achieve a more comprehensive filtering effect and noise suppression effect.

[0085] The step-down chip VR1 has an input terminal Vin connected to the input filter circuit to receive the DC input voltage passed through the input filter circuit, and an output terminal Vout connected to the output filter circuit to convert the unstable higher voltage into the specific voltage level required by the angle acquisition system.

[0086] The output filter circuit can be connected to the output terminal Vout of the step-down chip VR1, and includes two parallel capacitors C4 and C5, which are used to smooth the output voltage and reduce these ripples, thereby providing a more stable DC voltage.

[0087] The first pin of the bidirectional diode D1 is connected to the output filter circuit to ensure that the bidirectional diode can be triggered in a stable and clean voltage environment. The second pin is connected to the recyclable battery through a resistor R2 to prevent the recyclable rechargeable battery from reversely discharging and flowing back to the step-down chip VR1 or the photovoltaic module. At the same time, it also allows the recyclable rechargeable battery to power the load when the system is in a non-charging state.

[0088] The rechargeable battery BAT1 can be connected to the bidirectional diode D1 as an energy storage unit to supply power to the system when the photovoltaic module cannot provide sufficient power.

[0089] It should be noted that the above embodiments can be freely combined as needed. The above description is only a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application, and these improvements and modifications should also be considered as the scope of protection of the present application.

Claims

1. A photovoltaic support cleaning system, characterized in that: include: An angle acquisition system includes an inclination measurement circuit, which is installed on a photovoltaic bracket to collect angle information of the photovoltaic bracket; each photovoltaic bracket is equipped with the inclination measurement circuit; A cleaning device, installed on the photovoltaic support, for cleaning the photovoltaic components installed on the photovoltaic support; The cleaning device includes a control circuit, which is communicated with the angle acquisition system and reads the angle information of the adjacent photovoltaic bracket through the inclination measurement circuit, and identifies whether the cleaning device can pass based on the angle difference between the photovoltaic bracket where the cleaning device is located and the adjacent photovoltaic bracket.

2. The photovoltaic bracket cleaning system according to claim 1, characterized in that: The angle acquisition system further includes: A power pin circuit includes a power supply pin and a power output end, wherein the power supply pin is used to connect to the power output end of a photovoltaic component located outside the angle acquisition system; the power output end is connected to any one or all of the inclination measurement circuit, the processing circuit, and the communication circuit, and is used to power any one or all of the inclination measurement circuit, the processing circuit, and the communication circuit.

3. The photovoltaic bracket cleaning system according to claim 2, characterized in that: The angle acquisition system further includes: an energy storage circuit connected to the power output terminal and configured to store the electric energy outputted by the power output terminal in the energy storage circuit; The energy storage circuit is connected to any one or all of the inclination measurement circuit, the processing circuit, and the communication circuit, and is used to switch with the power output end and power any one or all of the inclination measurement circuit, the processing circuit, and the communication circuit.

4. The photovoltaic bracket cleaning system according to claim 3, characterized in that: The angle acquisition system further includes: The step-down circuit is connected to the power output end and is used to step down the electric energy outputted by the power output end and to supply the stepped-down electric energy to subsequent circuits or store it in the energy storage circuit.

5. The photovoltaic bracket cleaning system according to claim 3, characterized in that: The energy storage circuit comprises: Interconnected charge and discharge control subcircuits and rechargeable batteries; The charge and discharge control subcircuit controls the power output end to charge the rechargeable battery; or, The charge and discharge control subcircuit controls the electric energy of the rechargeable battery to be released to any one or all of the inclination measurement circuit, the processing circuit, and the communication circuit.

6. The photovoltaic bracket cleaning system according to claim 5, characterized in that: The charge and discharge control subcircuit includes: A bidirectional diode controls the power output end to charge the rechargeable battery when the bidirectional diode is in a first state; and controls the release of electric energy from the rechargeable battery when the bidirectional diode is in a second state.

7. The photovoltaic support cleaning system according to claim 4, characterized in that: The step-down circuit comprises: A filter circuit, connected to the power output terminal, for reducing noise interference of the electric energy converted by the photovoltaic assembly outside the angle acquisition system; The voltage stabilizing chip is connected to the filter circuit and outputs the electric energy converted by the photovoltaic assembly outside the angle acquisition system in a stable manner as a voltage of a set volt value.

8. The photovoltaic support cleaning system according to any one of claims 1 to 7, characterized in that: The angle acquisition system further includes: a processing circuit connected to the tilt measurement circuit, and controlling the tilt measurement circuit to collect the angle information; A communication circuit is connected to the processing circuit, and the processing circuit transmits the angle information through the communication circuit.

9. The photovoltaic support cleaning system according to claim 8, characterized in that: The tilt measurement circuit includes a tilt chip, and the processing circuit includes an MCU processing chip; The communication pin of the tilt chip is connected to the communication pin of the MCU processing chip, and the control pin of the tilt chip is connected to the control pin of the MCU processing chip.

10. The photovoltaic support cleaning system according to claim 9, characterized in that: The communication circuit includes a wireless communication chip; the communication pin, control pin, and signal pin of the wireless communication chip are connected to the corresponding pins of the MCU processing chip.

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