Photovoltaic power optimizer networking system and communication control method

Abstract

The invention relates to a photovoltaic power optimizer networking system and a communication control method, the system comprises a gateway device and a plurality of photovoltaic devices, Bluetooth mesh modules are arranged in the gateway device and the photovoltaic devices, the gateway device and the plurality of photovoltaic devices form a Bluetooth mesh network through the Bluetooth mesh modules, the Bluetooth mesh network comprises a plurality of concentric circle communication groups, and the concentric circle communication groups are connected with the gateway device and the plurality of photovoltaic devices. At least two pieces of photovoltaic equipment are arranged on each concentric circle communication group; the photovoltaic equipment comprises a photovoltaic module and a power optimizer connected with the photovoltaic module, a Bluetooth mesh module is arranged in the power optimizer, and the power optimizer is used for adjusting the output power of the photovoltaic module, obtaining state data of the photovoltaic module and sending the state data to the gateway equipment through a Bluetooth mesh network. According to the invention, the Bluetooth private mesh ad hoc network can be realized, the security and reliability are higher, the difficulty of equipment installation and configuration can be reduced, the difficulty of network distribution can be reduced, and the traffic cost of server connection can be reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of photovoltaic Internet of Things, and in particular to a photovoltaic power optimizer networking system and a communication control method. BACKGROUND

[0002] At present, the main networking method for existing power optimizers is wired power line carrier (PLC) communication based on power line communication, which has the following defects: the PLC communication data volume is low, which increases the firmware maintenance cost and risk of the optimizer system, and the size of the data transmission message is limited; the PLC communication rate is low, which increases the data transmission time and reduces the timeliness; the power optimizer needs to additionally increase the PLC receiver, which increases the construction burden of the field wiring and the field inverter; some PLC communication is one-way and does not support two-way, so that the group control instruction response cannot be applied; the two-way PLC communication cost is high, which is not conducive to product promotion and has no price advantage; the PLC networking system device quantity is limited due to the communication rate and data volume. SUMMARY

[0003] In order to solve at least one of the above technical problems, the present application provides a photovoltaic power optimizer networking system and a communication control method.

[0004] According to some embodiments of the present application, a photovoltaic power optimizer networking system is provided, which comprises a gateway device and a plurality of photovoltaic devices, the gateway device and the photovoltaic devices are each provided with a Bluetooth mesh module, the gateway device and the plurality of photovoltaic devices form a Bluetooth mesh network through the Bluetooth mesh module, the Bluetooth mesh network comprises a plurality of concentric communication groups, and each concentric communication group is provided with at least two photovoltaic devices; the photovoltaic device comprises a photovoltaic module and a power optimizer connected with the photovoltaic module, the power optimizer is provided with the Bluetooth mesh module, the power optimizer is used for adjusting the output power of the photovoltaic module, and the state data of the photovoltaic module is acquired and transmitted to the gateway device through the Bluetooth mesh network.

[0005] In some possible implementations, the Bluetooth mesh module comprises a Bluetooth mesh chip, an antenna assembly and a watchdog assembly, the antenna assembly and the watchdog assembly are respectively electrically connected with the Bluetooth mesh chip, and the Bluetooth mesh chip is in communication connection with the power optimization chip.

[0006] In some possible implementation manners, the power optimizer further includes a power supply module and an under-voltage protection module, the power supply module is configured to supply power to components in the power optimizer, the under-voltage protection module includes an under-voltage detection circuit and a reset response circuit, an input end of the under-voltage detection circuit is connected to an output end of the power supply module, an output end of the under-voltage detection circuit is connected to an input end of the reset response circuit, and an output end of the reset response circuit is connected to the Bluetooth mesh chip.

[0007] In some possible implementation manners, the under-voltage detection circuit includes a voltage detection chip and a MOS tube switch, an input end of the voltage detection chip is connected to an output end of the power supply module, an output end of the voltage detection chip is connected to a base of the MOS tube switch, a drain of the MOS tube switch is connected to a first end of a protection resistor, a second end of the protection resistor is connected to the output end of the power supply module, and a source of the MOS tube switch is grounded; the reset response circuit includes a microcontroller chip, an input end of the microcontroller chip is connected to the drain of the MOS tube switch, and an output end of the microcontroller chip is connected to the Bluetooth mesh chip.

[0008] According to some embodiments of the present application, a communication control method is also provided, which is applied to a photovoltaic device of the photovoltaic power optimizer networking system in any of the above embodiments, and the method includes: in response to a data sending instruction, obtaining target data to be sent; determining a quality of service level of the target data, and storing the target data in a target waiting queue corresponding to the quality of service level; determining a target photovoltaic device for sending the target data based on a type of the target waiting queue; after the target waiting queue is prepared, starting Bluetooth mesh broadcast, and sending the target data to the target photovoltaic device through the Bluetooth mesh broadcast; wherein the type of the target waiting queue includes a forwarding queue and a sending queue, data in the forwarding queue is from other photovoltaic devices, data in the sending queue is from a current photovoltaic device, and a sending time length of the forwarding queue is less than a sending time length of the sending queue. In some possible implementation manners, after the target photovoltaic device for sending the target data is determined based on the type of the target waiting queue, and the target data is sent to the target photovoltaic device through broadcast, the method further includes: receiving first broadcast data, and extracting verification information based on the first broadcast data; and based on the verification information and a time when the target data is sent, confirming a connection state of the current photovoltaic device and the target photovoltaic device.

[0009] In some possible implementation manners, the method further includes: receiving second broadcast data, and extracting over-the-air download information based on the second broadcast data; in a case where a version number of the current photovoltaic device is inconsistent with a version number corresponding to the over-the-air download information, shutting down the Bluetooth mesh broadcast; determining version upgrade data based on the over-the-air download information; and starting an OTA broadcast, and sending the version upgrade data to each photovoltaic device through the OTA broadcast.

[0010] In some possible implementation manners, the determining the target photovoltaic device of the target data transmission based on the type of the target waiting queue includes: in a case where the target waiting queue is a sending queue, selecting a photovoltaic device adjacent to the equivalent photovoltaic device as the target photovoltaic device; and in a case where the target waiting queue is a forwarding queue, selecting a photovoltaic device with the minimum distance to the gateway device from photovoltaic devices adjacent to the current photovoltaic device as the target photovoltaic device.

[0011] According to some embodiments of the present application, an electronic device is also provided, which includes a processor and a memory, the memory storing at least one instruction or at least one program, the at least one instruction or at least one program being loaded and executed by the processor to implement the communication control method as described above.

[0012] According to some embodiments of the present application, a storage medium is also provided, which stores at least one instruction or at least one program, the at least one instruction or at least one program being loaded and executed by a processor to implement the communication control method as described above.

[0013] The present application has the following advantages: 1. The photovoltaic power optimizer networking system can realize Bluetooth private mesh self-networking, has higher safety and reliability through wireless networking, does not need to additionally increase a PLC receiver, reduces equipment cost, reduces the difficulty of equipment installation and configuration, and also helps to reduce the difficulty of network distribution and the flow cost of a connection server. 2. The photovoltaic power optimizer networking system adopts Bluetooth wireless networking communication, has low requirements on working condition scenes, is compatible with different photovoltaic system scenes, can adapt to different types of inverters and photovoltaic modules, has high compatibility with photovoltaic power stations, and the wireless local area network can cope with different environments and has high stability and reliability.

[0014] 3. The photovoltaic power optimizer networking system realizes a Bluetooth mesh network adopting a concentric circle topology structure, can adapt to the array distribution structure of a photovoltaic power station, optimizes multiple communication paths compared with a traditional mesh topology, and improves the real-time performance and accuracy of data transmission.

[0015] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit the invention.

[0016] Other features and aspects of the invention will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0017] To more clearly illustrate the technical solutions and advantages in the embodiments or prior art of this specification, the drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this specification. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A structural diagram of a photovoltaic power optimizer grid system according to an embodiment of the present invention is shown; Figure 2 A circuit structure diagram of a Bluetooth mesh chip according to an embodiment of the present invention is shown; Figure 3 A structural diagram of an undervoltage detection circuit according to an embodiment of the present invention is shown; Figure 4 A structural diagram of a reset response circuit according to an embodiment of the present invention is shown; Figure 5 A concentric circle topology diagram of a Bluetooth mesh network according to an embodiment of the present invention is shown; Figure 6 A flowchart illustrating message queue allocation according to an embodiment of the present invention is shown; Figure 7 This diagram illustrates a data transmission and reception flowchart according to an embodiment of the present invention. Figure 8 A flowchart of an OTA upgrade according to an embodiment of the present invention is shown. Detailed Implementation

[0019] The technical solutions in the embodiments of this specification will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this specification, and not all embodiments. Based on the embodiments in this specification, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0020] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or server that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or devices.

[0021] Various exemplary embodiments, features, and aspects of the present invention will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0022] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0023] In this document, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A alone, A and B simultaneously, and B alone. Furthermore, the term "at least one" in this document means any combination of at least two of any one or more elements. For example, including at least one of A, B, and C can mean including any one or more elements selected from the set consisting of A, B, and C.

[0024] Furthermore, to better illustrate the present invention, numerous specific details are set forth in the following detailed embodiments. Those skilled in the art will understand that the present invention can be practiced without certain specific details. In some instances, methods, means, elements, and circuits well known to those skilled in the art have not been described in detail in order to highlight the spirit of the invention.

[0025] Currently, existing power optimizer networks primarily use wired power line carrier PLC communication, which has several drawbacks: low PLC communication data volume, increasing firmware maintenance costs and risks for the optimizer system, and limiting data transmission message size; low PLC communication speed, increasing data transmission time and reducing timeliness; the power optimizer requires an additional PLC receiver, increasing the construction burden on field wiring and inverters; some PLC communication is unidirectional and does not support bidirectional communication, making group control command response unusable; bidirectional PLC communication is costly, hindering product promotion and lacking price advantage; and the limitations in communication speed and data volume result in a limited number of devices in the PLC networking system.

[0026] To solve the above technical problems, please refer to Figure 1 This invention provides a photovoltaic power optimizer networking system, which includes a gateway device and multiple photovoltaic devices. Both the gateway device and the photovoltaic devices are equipped with Bluetooth mesh modules, forming a Bluetooth mesh network. This photovoltaic power optimizer networking system utilizes Bluetooth mesh communication technology, which increases data volume and communication speed. It eliminates the need for additional PLC receivers, enables wireless self-organizing, and is compatible with different types of inverters. Compared to traditional PLC communication technology, Bluetooth mesh communication offers lower cost for bidirectional communication, supports group control commands, and has a longer communication distance. It also eliminates the need for additional wiring, thus facilitating the digitalization of photovoltaic energy.

[0027] Specifically, the above system is applied to photovoltaic power plants. The gateway device in the system is used to connect to the control terminal or server. For example, the system communicates with the dispatch center of the power grid where the photovoltaic power plant is located through the gateway device. Multiple photovoltaic devices send data to the gateway device, which then aggregates and processes the data from the multiple photovoltaic devices and finally sends the data from the photovoltaic power plant to the power grid dispatch center.

[0028] In some embodiments, to adapt to the array distribution structure of photovoltaic equipment in a photovoltaic power station, the Bluetooth mesh network composed of the system adopts a concentric circle topology. Please refer to... Figure 5In the diagram, the node represents the photovoltaic (PV) device node, and the root node represents the gateway node. The Bluetooth mesh network comprises multiple concentric circle communication groups, each with at least two PV devices. Based on this topology, when PV devices send data to the gateway device, they do not need to use a traditional mesh topology to send data to all adjacent nodes. Instead, based on the concentric circle topology, the PV device closest to the gateway device is selected as the data transmission node, thus achieving faster data transmission. In other words, the Bluetooth mesh network using a concentric circle topology can adapt to the array distribution structure of PV power plants. Compared to traditional mesh topologies, it optimizes multiple communication paths, improving the real-time performance and accuracy of data transmission.

[0029] In the embodiments of the present invention, please refer to Figure 1 The photovoltaic (PV) equipment includes PV modules and a power optimizer connected to the PV modules. The power optimizer incorporates a Bluetooth mesh module. The power optimizer is used to adjust the output power of the PV modules and acquire their status data, transmitting it to a gateway device via the Bluetooth mesh network. Based on this configuration, the Bluetooth mesh module is integrated into the power optimizer, enabling it to adapt to different PV modules. The PV power optimizer networking system uses Bluetooth wireless networking communication, has low requirements for operating conditions, is compatible with different PV system scenarios, and can adapt to different types of inverters and PV modules. It exhibits high compatibility with PV power plants, and its wireless LAN can handle various environments with high stability and reliability.

[0030] In some embodiments, the Bluetooth mesh module is implemented based on an integrated chip. Specifically, the Bluetooth mesh module includes a Bluetooth mesh chip, an antenna assembly, and a watchdog assembly. The antenna assembly and the watchdog assembly are electrically connected to the Bluetooth mesh chip, and the Bluetooth mesh chip is communicatively connected to a power optimization chip. In one specific embodiment, the circuit structure of the Bluetooth mesh chip is as follows: Figure 2 As shown, it should be understood that the aforementioned Bluetooth mesh chip can also be replaced with other chips that have Bluetooth mesh functionality.

[0031] In a further embodiment, the power optimizer also includes a power supply module and an undervoltage protection module. The power supply module supplies power to the components in the power optimizer. The undervoltage protection module includes an undervoltage detection circuit and a reset response circuit. The input of the undervoltage detection circuit is connected to the output of the power supply module, the output of the undervoltage detection circuit is connected to the input of the reset response circuit, and the output of the reset response circuit is connected to the Bluetooth mesh chip.

[0032] In one specific implementation, please refer to Figure 3The undervoltage detection circuit includes a voltage detection chip U2 and a MOSFET switch. The input terminal of the voltage detection chip U2 is connected to the output terminal of the power module, and the output terminal of the voltage detection chip U2 is connected to the base of the MOSFET switch. The drain of the MOSFET switch is connected to the first terminal of the protection resistor R23, and the second terminal of the protection resistor R23 is connected to the output terminal of the power module. The source of the MOSFET switch is grounded. Please refer to... Figure 4 The reset response circuit includes a microcontroller chip U7. The input terminal of the microcontroller chip U7 is connected to the drain of the MOSFET switch, and the output terminal of the microcontroller chip U7 is connected to the Bluetooth mesh chip.

[0033] This invention also provides a communication control method, applied to a photovoltaic device in a photovoltaic power optimizer networking system according to any of the above embodiments. The method is used to control the photovoltaic device to send data to device nodes in the network when Bluetooth mesh networking is enabled. The method includes: Step S101: In response to the data transmission command, obtain the target data to be transmitted; Step S102: Determine the service quality level of the target data and store the target data in the target waiting queue corresponding to the service quality level; Step S103: Based on the type of the target waiting queue, determine the target photovoltaic device for target data transmission; Step S104: After the target waiting queue is ready, turn on Bluetooth mesh broadcast and send the target data to the target photovoltaic device via Bluetooth mesh broadcast.

[0034] In this embodiment of the invention, the target waiting queue includes a forwarding queue and a sending queue. Data in the forwarding queue originates from other photovoltaic devices, while data in the sending queue originates from the current photovoltaic device. The sending duration of the forwarding queue is shorter than that of the sending queue. This embodiment does not limit the specific sending duration of the forwarding queue and the sending queue, nor does it limit the specific settings of the quality of service (QoS) level. Users can flexibly adjust these settings according to their actual application scenarios.

[0035] In some embodiments, the communication control method is implemented based on the concentric circle topology self-organizing network structure described in the above embodiments. Specifically, the above-mentioned determination of the target photovoltaic device for target data transmission based on the type of the target waiting queue includes: when the target waiting queue is a sending queue, selecting a photovoltaic device adjacent to the equivalent photovoltaic device as the target photovoltaic device; when the target waiting queue is a forwarding queue, selecting the photovoltaic device with the smallest distance to the gateway device from the photovoltaic devices adjacent to the current photovoltaic device as the target photovoltaic device. Please refer to... Figure 5The gateway device corresponding to the source node of the target data puts the target data into the transmission queue. The gateway device broadcasts the data to all adjacent photovoltaic devices. The gateway device, as a forwarding node, only needs to send the target data to the photovoltaic devices close to the gateway device, or send it directly to the gateway device. This can adapt to the characteristics of the equipment array distribution in the photovoltaic power station, thereby improving the real-time performance of communication.

[0036] In one specific embodiment, please refer to Figure 6 The Quality of Service (QoS) level (i.e., the QoS type in the diagram) includes three levels (0, 1, and 2). The QoS level and queue matching methods are as follows: If the current photovoltaic (PV) device is the node that needs to send data, the target data is obtained from the PV module by the power optimizer. In this case, the QoS level of the target data is 1, and the target waiting queue corresponding to the target data is the sending queue. If the current PV device is the node that forwards data, the target data is sent by other device nodes, and the current PV device receives the target data. In this case, the QoS level of the target data is 0, and the target waiting queue corresponding to the target data is the forwarding queue. If the adjacent node devices of the current PV device include gateway devices, regardless of whether the source of the target data is the current PV device or other PV devices, the QoS level of the target data is 2, and the target waiting queue corresponding to the target data is the sending queue.

[0037] In some embodiments, a connection status confirmation method is also provided. Specifically, after determining the target photovoltaic device for target data transmission based on the type of the target waiting queue and broadcasting the target data to the target photovoltaic device, the method further includes: receiving first broadcast data and extracting verification information based on the first broadcast data; and confirming the connection status between the current photovoltaic device and the target photovoltaic device based on the verification information and the time when the target data was sent. The time when the target data was sent is used to check for timeout, i.e., the gateway response time is determined by comparing the current time with the time when the target data was sent. If the gateway response time exceeds a preset value, the target data needs to be resent and the connection status confirmation needs to be performed again. If the first broadcast data is received within the preset time and the verification information is correct, the connection between the current photovoltaic device and the target photovoltaic device is confirmed to be successful.

[0038] In one specific embodiment, please refer to Figure 7The photovoltaic device (i.e., the device node in the diagram) needs to send target data to the gateway device (i.e., the gateway node in the diagram). The transmission and reception process includes: the device node first generates user data, then encapsulates the user data according to the protocol to obtain the target data, and then sends it via Bluetooth broadcast (BLE broadcast) through the above steps S101-S104. Subsequently, the gateway node receives the target data and processes it (parses the protocol, stores the SN and CRC), and then sends reply data (i.e., the first broadcast data) through reply broadcast. The device node receives the reply data and verifies it, and finally completes the update of the connection status.

[0039] In some embodiments, the photovoltaic power optimizer networking system of the present invention also has an intelligent OTA (Over-The-Air) upgrade function, that is, the communication control method further includes an OTA upgrade method, the method further including: receiving second broadcast data and extracting over-the-air information based on the second broadcast data; turning off Bluetooth mesh broadcast when the version number of the current photovoltaic device is inconsistent with the version number corresponding to the over-the-air information; determining version upgrade data based on the over-the-air information; and enabling OTA broadcast and sending the version upgrade data to each photovoltaic device through OTA broadcast. Wherein, the second broadcast data is OTA broadcast data, and the OTA upgrade process is as follows: Figure 8 As shown.

[0040] According to some embodiments of the present invention, an electronic device is also provided, the electronic device including a processor and a memory, the memory storing at least one instruction or at least one program, the at least one instruction or at least one program being loaded and executed by the processor to implement the communication control method as described above.

[0041] According to some embodiments of the present invention, a storage medium is also provided, which stores at least one instruction or at least one program, wherein the at least one instruction or at least one program is loaded and executed by a processor to implement the communication control method as described above.

[0042] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or technical improvements to the embodiments in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A photovoltaic power optimizer grid system, characterized in that, The system includes a gateway device and multiple photovoltaic devices. Both the gateway device and the photovoltaic devices are equipped with Bluetooth mesh modules. The gateway device and the multiple photovoltaic devices form a Bluetooth mesh network through the Bluetooth mesh modules. The Bluetooth mesh network includes multiple concentric circle communication groups, and each concentric circle communication group is equipped with at least two photovoltaic devices. The photovoltaic device includes a photovoltaic module and a power optimizer connected to the photovoltaic module. The power optimizer is equipped with the Bluetooth mesh module. The power optimizer is used to adjust the output power of the photovoltaic module and to acquire the status data of the photovoltaic module and send it to the gateway device through the Bluetooth mesh network.

2. The photovoltaic power optimizer grid system according to claim 1, characterized in that, The Bluetooth mesh module includes a Bluetooth mesh chip, an antenna assembly, and a watchdog assembly. The antenna assembly and the watchdog assembly are electrically connected to the Bluetooth mesh chip, and the Bluetooth mesh chip is communicatively connected to the power optimization chip.

3. A photovoltaic power optimizer networking system according to claim 2, characterized in that, The power optimizer also includes a power supply module and an undervoltage protection module. The power supply module is used to supply power to the components in the power optimizer. The undervoltage protection module includes an undervoltage detection circuit and a reset response circuit. The input terminal of the undervoltage detection circuit is connected to the output terminal of the power module, the output terminal of the undervoltage detection circuit is connected to the input terminal of the reset response circuit, and the output terminal of the reset response circuit is connected to the Bluetooth mesh chip.

4. A photovoltaic power optimizer networking system according to claim 3, characterized in that, The undervoltage detection circuit includes a voltage detection chip and a MOSFET switch. The input terminal of the voltage detection chip is connected to the output terminal of the power module, and the output terminal of the voltage detection chip is connected to the base of the MOSFET switch. The drain of the MOSFET switch is connected to the first terminal of a protection resistor, the second terminal of the protection resistor is connected to the output terminal of the power module, and the source of the MOSFET switch is grounded. The reset response circuit includes a microcontroller chip, the input terminal of which is connected to the drain of the MOS transistor switch, and the output terminal of which is connected to the Bluetooth mesh chip.

5. A communication control method, characterized in that, The method, applied to a photovoltaic power optimizer grid system according to any one of claims 1-4, comprises: In response to a data transmission command, acquire the target data to be transmitted; Determine the service quality level of the target data and store the target data in the target waiting queue corresponding to the service quality level; Based on the type of the target waiting queue, the target photovoltaic device for sending the target data is determined; Once the target waiting queue is ready, Bluetooth mesh broadcast is enabled to send the target data to the target photovoltaic device via Bluetooth mesh broadcast; The target waiting queue includes a forwarding queue and a sending queue. The data in the forwarding queue comes from other photovoltaic devices, and the data in the sending queue comes from the current photovoltaic device. The sending duration of the forwarding queue is less than the sending duration of the sending queue.

6. The method according to claim 5, characterized in that, After determining the target photovoltaic device for sending the target data based on the type of the target waiting queue, and broadcasting the target data to the target photovoltaic device, the method further includes: Receive the first broadcast data and extract verification information based on the first broadcast data; Based on the verification information and the time when the target data was sent, the connection status between the current photovoltaic device and the target photovoltaic device is confirmed.

7. The method according to claim 5, characterized in that, The method further includes: Receive the second broadcast data and extract over-the-air download information based on the second broadcast data; If the version number of the current photovoltaic device is inconsistent with the version number corresponding to the over-the-air download information, the Bluetooth mesh broadcast will be turned off. Based on the over-the-air download information, determine the version upgrade data; Enable OTA broadcasting to send the version upgrade data to each photovoltaic device via OTA broadcasting.

8. The method according to claim 5, characterized in that, The step of determining the target photovoltaic device for data transmission based on the type of the target waiting queue includes: If the target waiting queue is a sending queue, the photovoltaic device adjacent to the equivalent photovoltaic device is selected as the target photovoltaic device; If the target waiting queue is a forwarding queue, the photovoltaic device with the smallest distance from the gateway device is selected from the photovoltaic devices adjacent to the current photovoltaic device and determined as the target photovoltaic device.

9. An electronic device, characterized in that, The electronic device includes a processor and a memory, wherein the memory stores at least one instruction or at least one program, and the at least one instruction or at least one program is loaded and executed by the processor to implement the communication control method as described in claims 5-8.

10. A storage medium, characterized in that, The storage medium stores at least one instruction or at least one program, which is loaded and executed by a processor to implement the communication control method as described in claims 5-8.

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