Photovoltaic tracking support communication relay system

Abstract

The utility model relates to a photovoltaic tracking support communication relay system, which comprises a plurality of electric control boxes and a single communication box, the electric control boxes are used for controlling the rotation of a single row of photovoltaic tracking supports, the communication box is used for receiving background signals and carrying out data interaction with the electric control boxes, and the electric control boxes are used for controlling the rotation of the single row of photovoltaic tracking supports within the communication range of the communication box. The communication box preferentially and directly performs communication data interaction with a plurality of nearby electric control boxes through LORA wireless communication; a plurality of repeaters are further arranged in the communication range of the communication box, the repeaters conduct communication data interaction with the communication box through LORA wireless communication, the electric control box far away from the communication box achieves communication data interaction with the communication box through the repeaters, the repeaters are electrically connected with the electric control boxes close to the repeaters through wires, and the electric control boxes close to the repeaters are electrically connected with the communication box through wires. Therefore, power supply to the repeater is realized, longer-distance signal transmission is realized with lower cost, and the problem of communication loss of the existing photovoltaic tracking support communication terminal is effectively solved.

Description

Technical Field

[0001] This utility model relates to a photovoltaic tracking bracket communication relay system, belonging to the field of photovoltaic communication technology. Background Technology

[0002] Currently, most photovoltaic tracking brackets communicate wirelessly to save costs. In a subarray of a photovoltaic tracking bracket, one communication box and multiple control boxes exchange data. The communication box transmits data signals, and the control boxes receive signals and return data. When a subarray is too large and exceeds the communication range of the communication box, or when the signals of some control boxes in the subarray are poor, they will not be able to receive the data sent by the communication box, resulting in communication failure. This is especially likely to cause delays in the operation of the photovoltaic tracking bracket under severe weather conditions such as strong winds, thus causing damage.

[0003] To address the aforementioned issues, this application proposes a photovoltaic tracking bracket communication relay system. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a photovoltaic tracking bracket communication relay system, which achieves signal transmission over a longer distance at a lower cost, effectively solves the problem of communication terminal loss or disconnection of existing photovoltaic tracking brackets, and can effectively solve the problems in the background technology.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A photovoltaic tracking bracket communication relay system includes several electrical control boxes and a single communication box. The electrical control boxes are used to control the rotation of a single row of photovoltaic tracking brackets, and the communication box is used to receive backend signals and interact with the electrical control boxes. Within the communication range of the communication box, the communication box preferentially interacts with multiple nearby electrical control boxes directly via LoRa wireless communication.

[0007] Several repeaters are also installed within the communication range of the communication box. The repeaters communicate with the communication box via LORA wireless communication. Electrical control boxes that are far from the communication box communicate with the communication box via repeaters.

[0008] The repeater is electrically connected to the electrical control box near the repeater via a wire to provide power to the repeater.

[0009] As a further improvement of this utility model, the repeater communicates with the electrical control box within its communication range via LORA wireless communication.

[0010] As a further improvement of this utility model, the communication box and the repeater use different communication frequency bands for data interaction.

[0011] As a further improvement of this utility model, the repeater includes a housing and a motherboard placed inside the housing, wherein a microcontroller and a LoRa wireless module are integrated on the motherboard.

[0012] As a further improvement of this utility model, the housing is provided with a communication interface and a power supply interface. The communication interface is connected to a wireless antenna via a data cable, and the power supply interface is connected to the nearest electrical control box via a wire.

[0013] As a further improvement of this utility model, a hanging ear is fixedly provided on the housing, and the repeater is installed on the main beam of the photovoltaic tracking bracket through the hanging ear.

[0014] The beneficial effects of this utility model are as follows: A photovoltaic tracking bracket communication relay system addresses the issue that when a subarray is too large, some control boxes furthest from the communication box may be unable to receive signals. By installing repeaters in the middle of the subarray or at locations where signals can be received, the repeaters can receive instructions from the communication box and send them to the control box. Data transmitted back from the control box can be received by the repeaters and returned to the communication box, thereby increasing the data interaction distance between the communication box and the control box. When some control boxes in the subarray have poor signals, such as due to component obstruction causing them to be unable to receive data sent by the communication box, these control boxes can still communicate and interact with the communication box through repeaters, avoiding signal loss. This approach is more cost-effective than using more communication boxes for communication. Attached Figure Description

[0015] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0016] Figure 1 This is a topology diagram of a photovoltaic tracking bracket communication relay system according to this utility model.

[0017] Figure 2 This is a structural diagram of a repeater in a photovoltaic tracking bracket communication relay system according to this utility model. Detailed Implementation

[0018] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the present invention. In order to better illustrate the specific embodiments of the present invention, some parts in the drawings may be omitted, enlarged or reduced, and do not represent the actual product size. It is understandable for those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] To make the technical means, creative features, and achieved objectives and effects of this utility model easy to understand, it should be noted in the description of this utility model that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The utility model will be further described below in conjunction with specific embodiments.

[0020] Example

[0021] like Figures 1-2 As shown, a photovoltaic tracking bracket communication relay system includes several electrical control boxes and a single communication box. The electrical control boxes are used to control the rotation of a single row of photovoltaic tracking brackets, and the communication box is used to receive backend signals and interact with the electrical control boxes. Within the communication range of the communication box, the communication box preferentially interacts with multiple nearby electrical control boxes directly via LORA wireless communication.

[0022] Several repeaters are also installed within the communication range of the communication box. The repeaters communicate with the communication box via LORA wireless communication. Electrical control boxes that are far from the communication box communicate with the communication box via repeaters.

[0023] The repeater is electrically connected to the electrical control box near the repeater via a wire to provide power to the repeater.

[0024] When the electrical control box is within the signal range of both the communication box and the repeater, it can receive signals from both. In this case, it prioritizes direct communication with the communication box. When the electrical control box receives a poor or terminated signal from the communication box, it communicates with the communication box via the repeater.

[0025] In a photovoltaic control system, the communication unit (NCU) sends commands to the control unit (TCU), and the control unit returns data to the communication unit, achieving data interaction and control. In a subarray, one communication unit and multiple control units exchange data. The communication unit transmits data signals, and the control units receive signals and return data. When a subarray is too large, some control units farthest from the communication unit may not receive signals. By installing repeaters in the middle of the subarray or at locations where signals can be received, the repeaters can receive commands from the communication unit and send them to the control units. Data returned by the control units can be received by the repeaters and returned to the communication unit, thereby increasing the distance for data interaction between the communication unit and the control unit. When some control units in the subarray have poor signals, such as due to module obstruction, and cannot receive data sent by the communication unit, these control units can also communicate with the communication unit through repeaters to avoid signal loss.

[0026] In some alternative embodiments, the repeater communicates with the electrical control box within its communication range via LoRa wireless communication.

[0027] Furthermore, in order to prevent mutual interference between the communication between the communication box and the electrical control box and between the repeater and the electrical control box, the communication box and the repeater use different communication frequency bands for data exchange.

[0028] As a further improvement of this utility model, the repeater includes a housing and a main board placed inside the housing. The main board integrates a microcontroller and a LoRa wireless module. The LoRa wireless module is connected to a wireless antenna through a communication interface to realize signal transmission and reception. The microcontroller is used to control the LoRa wireless module.

[0029] As a further improvement of this utility model, the housing is provided with a communication interface and a power supply interface. The communication interface is connected to a wireless antenna via a data cable, and the power supply interface is connected to the nearest electrical control box via a wire. The repeater is powered by the power supply inside the electrical control box, eliminating the need to equip the repeater with a separate power supply and saving costs.

[0030] As a further improvement of this utility model, a hanging ear is fixedly provided on the housing, and the repeater is installed on the main beam of the photovoltaic tracking bracket through the hanging ear. When installing the repeater, the repeater is fixed to the main beam by passing a clamp, hose clamp or clip through the hanging ear.

[0031] The above are preferred embodiments of the present invention. The basic principles, main features, and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are only illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope thereof. All such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A photovoltaic tracking bracket communication relay system, comprising several electrical control boxes and a single communication box, wherein the electrical control boxes are used to control the rotation of a single row of photovoltaic tracking brackets, and the communication box is used to receive signals from the backend and interact with the electrical control boxes, characterized in that: Within the communication range of the communication box, the communication box preferentially communicates and interacts with multiple nearby electrical control boxes directly via LORA wireless communication. Several repeaters are also installed within the communication range of the communication box. The repeaters communicate with the communication box via LORA wireless communication. Electrical control boxes that are far from the communication box communicate with the communication box via repeaters. The repeater is electrically connected to the electrical control box near the repeater via a wire to provide power to the repeater.

2. The photovoltaic tracking bracket communication relay system according to claim 1, characterized in that: The repeater communicates with the electrical control box within its communication range via LORA wireless communication.

3. The photovoltaic tracking bracket communication relay system according to claim 1, characterized in that: The communication box and the repeater use different communication frequency bands for data exchange.

4. A photovoltaic tracking bracket communication relay system according to claim 1, characterized in that: The repeater includes a housing and a motherboard placed inside the housing, on which a microcontroller and a LoRa wireless module are integrated.

5. A photovoltaic tracking bracket communication relay system according to claim 4, characterized in that: The housing is equipped with a communication interface and a power supply interface. The communication interface is connected to a wireless antenna via a data cable, and the power supply interface is connected to the nearest electrical control box via a wire.

6. A photovoltaic tracking bracket communication relay system according to claim 4, characterized in that: The housing is fixedly provided with a hanging ear, and the repeater is installed on the main beam of the photovoltaic tracking bracket through the hanging ear.

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