Photovoltaic power station component-level wireless networking communication method, device, equipment and medium

Abstract

The present invention relates to the field of photovoltaic technology, and discloses a component-level wireless networking communication method, apparatus, equipment, and medium for photovoltaic power station components. The method comprises: selecting a target node; generating a communication strategy based on the location of the target node, wherein the location includes the partition where the target node is located and the photovoltaic component group where the target node is located; and sending instructions from a gateway to the target node using the communication strategy. In the present invention, this communication method has the advantages of long communication distance, simple installation, low power consumption, and strong environmental adaptability. At the same time, due to the large number of components and the large scale of the photovoltaic power station, the above-mentioned communication method can realize component-level fault detection and control, which can effectively improve the efficiency and safety of photovoltaic power station operation and maintenance.

Description

Technical Field

[0001] The present invention relates to the field of photovoltaic technology, and in particular to a component-level wireless networking communication method, device, equipment and medium for photovoltaic power stations. Background Art

[0002] my country's photovoltaic industry is currently experiencing rapid growth. This year, new domestic photovoltaic capacity reached 58 GW, setting a new record. Distributed photovoltaic power generation accounted for 35 GW, or 67.2% of the new capacity. Due to strong market demand, distributed photovoltaic power generation accounted for over 50% of the new capacity.

[0003] Preventing fires in photovoltaic power stations is a difficult and painful point for rooftop power stations. Out of consideration for personal safety, property safety, and environmental safety, in order to minimize the probability of fires in photovoltaic power stations, the offices of development and reform bureaus in many regions have issued the "Management Measures for the Construction of Distributed Photovoltaic Power Generation Projects," which explicitly require that distributed photovoltaic projects must have components and rapid shutdown and management capabilities.

[0004] In the existing technology, power line carrier is used to realize data monitoring and switch control of photovoltaic modules. However, this communication method consumes a lot of power. The communication method through the router and the WiFi module is limited by the communication distance. Summary of the Invention

[0005] The present invention provides a photovoltaic power station component-level wireless networking communication method, device, computer equipment and medium to solve at least one technical problem in the prior art.

[0006] To achieve the above and other objectives, the present application provides a component-level wireless networking communication method for a photovoltaic power station, wherein the photovoltaic power station includes multiple partitions, each partition includes multiple photovoltaic component groups, and each photovoltaic component includes several photovoltaic components; wherein one photovoltaic component in each photovoltaic component group is a master node, and the remaining photovoltaic components are ordinary nodes. The method includes:

[0007] Selecting a target node; wherein the target node is a master node or one or more common nodes in a photovoltaic component group;

[0008] generating a first communication strategy according to a location of the target node, wherein the location includes a partition where the target node is located and a photovoltaic component group where the target node is located;

[0009] The gateway sends an instruction to the target node through the first communication strategy.

[0010] In one embodiment of the present invention, the method further includes:

[0011] The target node sends response information to the gateway through a second communication strategy.

[0012] In one embodiment of the present invention, generating a communication strategy according to the location of the target node includes:

[0013] Determining an association relationship between the gateway and the target node according to a location of the target node, where the association relationship includes an adjacent relationship and a non-adjacent relationship;

[0014] If the association relationship between the gateway and the photovoltaic component group to which the target node belongs is a neighbor relationship, the first communication strategy is: sending a handshake request to the master node in the photovoltaic component group to which the target node belongs through the gateway;

[0015] If the association relationship between the gateway and the photovoltaic component group to which the target node belongs is a non-neighbor relationship, the first communication strategy is: first, the gateway sends a handshake request to the master node of the photovoltaic component group that has a neighboring relationship with the gateway, and then the master node of the photovoltaic component group that has a neighboring relationship with the gateway sends a handshake request to the master node of the next-level photovoltaic component group, and so on, until the master node of the photovoltaic component group to which the target node belongs receives the handshake request.

[0016] In one embodiment of the present invention, the method further includes:

[0017] Determine whether the target node is a master node. If the target node is a master node, receive the handshake request through the master node; if the target node is a common node, forward the handshake request to the common node through the master node.

[0018] In one embodiment of the present invention, when the handshake between the gateway and the master node fails, an ordinary node is selected from multiple ordinary nodes in the photovoltaic component group where the master node is located as a new master node according to preset rules, and handshake communication is established between the new master node and the gateway.

[0019] In one embodiment of the present invention, the preset rule is:

[0020] The new master node is determined according to a priority pre-set for each photovoltaic component in the photovoltaic component group.

[0021] In one embodiment of the present invention, the method further includes:

[0022] A digital number is set for each photovoltaic component in each photovoltaic component group, and the digital number is used to at least indicate the priority of each node.

[0023] In one embodiment of the present invention, communication between master nodes of different photovoltaic component groups adopts point-to-point communication.

[0024] To achieve the above and other purposes, the present application provides a component-level wireless networking communication device for a photovoltaic power station, wherein the photovoltaic power station includes multiple partitions, each partition includes multiple photovoltaic component groups, and each photovoltaic component includes several photovoltaic components; wherein one photovoltaic component in each photovoltaic component group is a master node, and the remaining photovoltaic components are ordinary nodes. The device includes:

[0025] A selection module is used to select a target node; wherein the target node is a master node or one or more common nodes in a photovoltaic component group;

[0026] a communication strategy generating module, configured to generate a first communication strategy according to a location of the target node, wherein the location includes a partition where the target node is located and a photovoltaic component group where the target node is located;

[0027] A sending module is configured to send instructions from the gateway to the target node through the first communication strategy.

[0028] To achieve the above-mentioned and other purposes, the present application provides a computer device, including a memory, a processor, and a computer program stored in the memory and runnable on the processor. When the processor executes the computer program, the steps of the above-mentioned photovoltaic power station component-level wireless networking communication method are implemented.

[0029] To achieve the above-mentioned purpose and other purposes, the present application provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, it implements the steps of the above-mentioned photovoltaic power station component-level wireless networking communication method.

[0030] In the scheme implemented by the above-mentioned photovoltaic power station component-level wireless networking communication method, device, computer equipment and storage medium, the method includes: selecting a target node; wherein the target node is a master node or one or more of a plurality of ordinary nodes in a photovoltaic component group; generating a first communication strategy based on the location of the target node, wherein the location includes the partition where the target node is located and the photovoltaic component group where the target node is located; and sending instructions from the gateway to the target node through the first communication strategy. In the present invention, the gateway sends a gateway instruction to the master node (transit node, i.e., the photovoltaic component group where the target node is located) of one of the multiple photovoltaic component groups to establish communication with the master node, and then the master node in the group forwards the gateway instruction to the master node in another photovoltaic component group, and so on. Finally, the final master node forwards the handshake request to the target node, thereby forwarding the gateway instruction to the target nodes in each area of ​​the photovoltaic power station.

[0031] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0033] Figure 1 This is a schematic diagram of an exemplary implementation environment of a photovoltaic power station component-level wireless networking communication method of the present application;

[0034] Figure 2 This is a flow chart of a photovoltaic power station component-level wireless networking communication method shown in an exemplary embodiment of the present application;

[0035] Figure 3 A flowchart illustrating generating a communication strategy according to the location of the target node according to an exemplary embodiment of the present application;

[0036] Figure 4 is a schematic diagram of communication between a gateway and a node shown in an exemplary embodiment of the present application;

[0037] Figure 5 is a schematic diagram of communication between a gateway and a node according to another exemplary embodiment of the present application;

[0038] Figure 6 is a schematic diagram of communication between a gateway and a node shown in another exemplary embodiment of the present application;

[0039] Figure 7 This is a schematic diagram showing communication between a transit node and nodes within a group according to an exemplary embodiment of the present application;

[0040] Figure 8 A schematic diagram of the structure of a computer system suitable for implementing an electronic device according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0042] Figure 1This is a schematic diagram of an exemplary implementation environment of a photovoltaic power station component-level wireless networking communication method of this application. Figure 1 This implementation environment includes multiple partitions, each of which contains multiple PV module groups, and each PV module group contains several PV modules. It should be noted that the multiple PV module groups are arranged in an array, and the PV modules within each PV module group are arranged in an array. For all PV modules, after a communication control node is set up for each PV module, all nodes can complete communication between nodes and between nodes and gateways.

[0043] For all components in a PV power plant, the gateway assigns a region number to each area, a group number to each PV module group within each area, and a group sequence number to each PV module within each PV module group. Each PV module group includes a master node (transit node). Other nodes are ordinary nodes.

[0044] The gateway shakes hands with the master node (transfer node) of the first photovoltaic component group in each area. The master node can be any one of all nodes, or a node can be pre-set as the master node; and the master node is responsible for communicating with all nodes in the photovoltaic component group and communicating with the master node or transfer node in the next photovoltaic component group.

[0045] It should be noted that the gateway allocates the node with serial number 1 of the first photovoltaic component group in each area through ID matching (the node with serial number 1 in the group is the main node and has the highest priority, so the node with serial number 1 in the corresponding area must be allocated first); the other serial numbers in the group are allocated serial numbers through the gateway and the node with serial number 1 in the first group; after the serial numbers of the nodes in the first group are allocated, the serial numbers of the other nodes in the second group are allocated, and the node with serial number 1 in the second group sends instructions to the transfer node in the first group through the gateway. The transfer node then forwards the instructions to the node with designated serial number 1 in the second group. The nodes with other serial numbers in the second group are forwarded through the gateway, the master node in the first group, and the master node in the second group. And so on, the allocation of regional numbers, group numbers, and serial numbers within groups for all nodes in each area of ​​the photovoltaic power station is completed.

[0046] The embodiments of the present application respectively propose a photovoltaic power station component-level wireless networking communication method, a photovoltaic power station component-level wireless networking communication device, a computer device, and a computer-readable storage medium. These embodiments will be described in detail below.

[0047] See also Figure 2 , Figure 2 This is a flowchart of a photovoltaic power station component-level wireless networking communication method shown in an exemplary embodiment of the present application. This method can be applied to Figure 1 It should be understood that the method can also be applied to other exemplary implementation environments and be specifically executed by devices in other implementation environments, and this embodiment does not limit the implementation environment to which the method is applicable.

[0048] See also Figure 2 , Figure 2 This is a flowchart of an exemplary photovoltaic power station component-level wireless networking communication method of the present application. The photovoltaic power station component-level wireless networking communication method includes at least steps S210 to S230, which are described in detail as follows:

[0049] Step S210, selecting a target node; wherein the target node is a master node or one or more common nodes in a photovoltaic component group;

[0050] A target node is a node that needs to perform a handshake communication with the gateway. Any one or more PV modules in the entire PV power plant can be a target node. A target node can be a master node or a common node. There can be one or more target nodes, including only master nodes, only common nodes, or both. The target node can be configured as needed by those skilled in the art, and no limitation is imposed here.

[0051] Step S220, generating a first communication strategy according to the location of the target node, wherein the location includes the partition where the target node is located and the photovoltaic component group where the target node is located;

[0052] Since the entire PV power station is divided into multiple areas, each area includes multiple PV module groups. Therefore, different nodes have different communication methods with the gateway. It is necessary to determine the corresponding communication strategy based on the partition where the target node is located and the PV module group where the target node is located.

[0053] See also Figure 3 , Figure 3 This is a flow chart showing an exemplary embodiment of the present application for generating a communication strategy based on the location of the target node. Figure 3 wherein generating a communication strategy according to the location of the target node comprises:

[0054] Step S310: determining an association relationship between the gateway and the target node according to the location of the target node, where the association relationship includes an adjacent relationship and a non-adjacent relationship;

[0055] See also Figure 4Since a PV power station is divided into multiple zones, each zone includes multiple PV module groups (N1-N16 is a PV module group, A1-A16 is a PV module group, and B1-B16 is a PV module group), an adjacency relationship indicates that two adjacent PV module groups have an adjacency relationship. For example, PV module group A and PV module group B have an adjacency relationship, while PV module group B and PV module group N have a non-adjacency relationship. The PV module group closest to the gateway has an adjacency relationship.

[0056] Step S320: If the association relationship between the gateway and the photovoltaic component group to which the target node belongs is a neighbor relationship, the first communication strategy is: sending a handshake request to the master node in the photovoltaic component group to which the target node belongs through the gateway;

[0057] Still reference Figure 4 If the target node is A8, it can be determined that the association relationship between the gateway and the photovoltaic component group where the target node is located is a neighbor relationship, and the gateway sends a handshake request to the master node A1 of the photovoltaic component group A where the target node A8 is located;

[0058] In step S330, if the association relationship between the gateway and the photovoltaic component group to which the target node belongs is a non-neighbor relationship, the first communication strategy is: first, the gateway sends a handshake request to the master node of the photovoltaic component group that has a neighboring relationship with the gateway, and then the master node of the photovoltaic component group that has a neighboring relationship with the gateway sends a handshake request to the master node of the next-level photovoltaic component group, and so on, until the master node of the photovoltaic component group to which the target node belongs receives the handshake request.

[0059] Still reference Figure 4 If the target node is N8, it can be determined that the association relationship between the gateway and the PV module group N where the target node is located is a non-neighbor relationship. The gateway first sends a handshake request to the master node A1 of PV module group A. After the gateway establishes a handshake with the master node A1, the master node A1 sends a handshake request to the master node B1 of PV module group B. Then the master node B1 sends a handshake request to the master node C1 of PV module group C, and so on. Finally, after the master node N1 of PV module group N receives the handshake request, the forwarding of the handshake request between PV module groups is stopped.

[0060] In one embodiment, the method further comprises:

[0061] Determine whether the target node is a master node. If the target node is a master node, receive the handshake request through the master node; if the target node is a common node, forward the handshake request to the common node through the master node.

[0062] After the master node of the photovoltaic component group to which the target node belongs receives the handshake request, it determines whether the target node is a master node. If the target node is a master node, the master node receives the handshake request and responds to the handshake request, thereby establishing communication between the target node and the gateway. If the target node is an ordinary node, the master node forwards the handshake request to the ordinary node. Figure 4 If the target node is the master node N1, N1 will no longer forward the handshake request after receiving it, and then establish a communication connection with the gateway; if the target node is an ordinary node N8, the handshake request will be forwarded to the ordinary node N8 through the master node N1, and then establish a communication connection with the gateway after the handshake is successful.

[0063] It should be noted that the communication method described in this embodiment is used in photovoltaic power stations. Since photovoltaic power supply is easily affected by the lighting environment, the master node or transit node (whether it is illuminated in the morning or evening or blocked) may experience unstable power supply, resulting in communication abnormalities. In this case, other nodes in the photovoltaic component group need to replace the master node or transit node of the photovoltaic component group to transmit data to the upper or lower level. Therefore, in one embodiment, when the handshake between the gateway and the master node fails, a common node is selected from multiple common nodes in the photovoltaic component group where the master node is located according to preset rules as the new master node, and handshake communication is established between the new master node and the gateway.

[0064] In this example, see Figure 4 、 5 , 6, Figure 4 、 5 ,6 are schematic diagrams of communication between the gateway and the node. Figure 5 This is a schematic diagram of the gateway sending data to the node communication. Figure 6 For nodes to upload data to the gateway for communication. Figure 4 In the example, when the gateway communicates with the photovoltaic components of the photovoltaic component group, the gateway first shakes hands with the node with sequence number 1 in the first photovoltaic component group (the master node or transit node A1). If the node with sequence number 1 in the first group is blocked and cannot communicate, the gateway shakes hands with the node with sequence number 2 in the first photovoltaic component group (the new master node A2), and so on.

[0065] Specifically, still refer to Figure 4 ,exist Figure 4In the example, if the target node is N8, the gateway first sends a handshake request to the master node A1, and then the master node A1 forwards the handshake request to the master node B1. If the master node B1 cannot establish a handshake connection with the gateway at this time, the ordinary node B2 will be used as the new master node, and the handshake request will be forwarded to the node B2. Then the node B2 will forward the handshake request to the master node N1, and finally the master node N1 will forward the handshake request to the target node N8, completing the forwarding of the handshake request from the gateway to the target node.

[0066] In one embodiment, the preset rule is:

[0067] The new master node is determined according to a priority pre-set for each photovoltaic component in the photovoltaic component group.

[0068] Priority can be determined in advance. Before establishing communication between the master node and the gateway, or before establishing communication between the ordinary node and the gateway, a priority is set for each node in advance; in this way, when the handshake request needs to be forwarded, the corresponding forwarding node is selected according to the corresponding priority.

[0069] In one embodiment, the method further comprises: setting a digital number for each photovoltaic component in each photovoltaic component group, wherein the digital number is at least used to indicate the priority of each node.

[0070] The target node, or master node within a PV module group, is pre-assigned a node number. The node number determines the master node's priority. For example, a larger node number indicates a higher priority, while a smaller node number indicates a lower priority. If the initially selected target node fails to communicate with the gateway, a new master node is selected based on the priorities of each node. For example, among multiple common nodes, the one with the highest priority is selected as the new master node.

[0071] See also Figure 7 , Figure 7 This is a schematic diagram of the communication between the transit node and the nodes in the group shown in an exemplary embodiment of the present application. Figure 7 In the PV module grouping, the communication between the master nodes is point-to-point communication.

[0072] Step S230: The gateway sends an instruction to the target node through the communication strategy.

[0073] In one embodiment of the present invention, the method further includes:

[0074] The target node sends response information to the gateway through a second communication strategy.

[0075] The first communication strategy, i.e., the method by which the gateway sends instructions to the target node, has been described in detail in the foregoing embodiment. Compared with the first communication strategy, the second communication strategy has the same communication method between the target node and the gateway, except that the target node sends the information to the gateway. The second communication strategy is no longer further defined here.

[0076] It should be understood that the size of the serial numbers of the steps in the above embodiments does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0077] In the present invention, the gateway sends a gateway instruction to the master node (transfer node, i.e., the PV module group where the target node is located) of one of the multiple PV module groups, establishes communication with the master node, and then the master node in the group forwards the gateway instruction to the master node in another PV module group, and so on. Finally, the final master node forwards the handshake request to the target node, thereby forwarding the gateway instruction to the target nodes in each area of ​​the PV power station. This communication method has the following characteristics:

[0078] 1) High reliability: supports data jump and automatically switches the transfer master node to ensure the reliability and stability of data communication

[0079] 2) Long communication distance: The number of data packet transfers is not limited, and the communication distance can be expanded by increasing the number of transfer hops.

[0080] 3) Easy installation: wireless communication, no external communication cables required

[0081] 4) Low power consumption: Communication nodes are in a listening state for a long time, and the overall power consumption is only a few milliwatts

[0082] 5) Strong environmental adaptability: In complex and highly interfering communication environments, the number of nodes within the group can be reduced, and the communication distance within and between groups can be shortened to ensure adaptability to communication in harsh environments.

[0083] Through the above technical solution, component-level fault detection and control can be achieved, which can effectively improve the operation and maintenance efficiency and safety of photovoltaic power stations.

[0084] The present application provides a component-level wireless networking communication device for a photovoltaic power station, wherein the photovoltaic power station includes multiple partitions, each partition includes multiple photovoltaic component groups, and each photovoltaic component includes several photovoltaic components; wherein one photovoltaic component in each photovoltaic component group is a master node, and the remaining photovoltaic components are ordinary nodes. The device includes:

[0085] A selection module is used to select a target node; wherein the target node is a master node or one or more common nodes in a photovoltaic component group;

[0086] a communication strategy generating module, configured to generate a communication strategy according to a location of the target node, wherein the location includes a partition where the target node is located and a photovoltaic component group where the target node is located;

[0087] The sending module is used to send instructions from the gateway to the target node through the communication strategy.

[0088] It should be noted that the photovoltaic power station component-level wireless networking communication device provided in the above-mentioned embodiments and the photovoltaic power station component-level wireless networking communication method provided in the above-mentioned embodiments are based on the same concept. The specific manner in which each module and unit performs operations has been described in detail in the method embodiments and will not be repeated here. In actual applications, the photovoltaic power station component-level wireless networking communication device provided in the above-mentioned embodiments can, as needed, allocate the above-mentioned functions to different functional modules, that is, divide the internal structure of the device into different functional modules to complete all or part of the functions described above. This is not a limitation herein.

[0089] An embodiment of the present application also provides an electronic device, comprising: one or more processors; a storage device for storing one or more programs, wherein when the one or more programs are executed by the one or more processors, the electronic device implements the photovoltaic power station component-level wireless networking communication method provided in the above-mentioned embodiments.

[0090] Figure 8 The following is a schematic diagram showing the structure of a computer system suitable for implementing an electronic device according to an embodiment of the present application. Figure 8 The computer system of the electronic device shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.

[0091] like Figure 8 As shown, the computer system includes a central processing unit (CPU), which can perform various appropriate actions and processes according to the program stored in the read-only memory (ROM) or the program loaded from the storage portion into the random access memory (RAM), such as executing the method described in the above embodiment. Various programs and data required for system operation are also stored in the RAM. The CPU, ROM, and RAM are connected to each other via a bus. The input / output (I / O) interface is also connected to the bus.

[0092] The following components are connected to the I / O interface: an input section including a keyboard, mouse, etc.; an output section including a cathode ray tube (CRT), liquid crystal display (LCD), and speakers; a storage section including a hard disk; and a communication section including a network interface card such as a LAN (Local Area Network) card and a modem. The communication section performs communication processing via a network such as the Internet. A drive is also connected to the I / O interface as needed. Removable media such as magnetic disks, optical disks, magneto-optical disks, semiconductor memories, etc. are installed in the drive as needed so that computer programs read from them can be installed in the storage section as needed.

[0093] In particular, according to an embodiment of the present application, the process described above with reference to the flowchart can be implemented as a computer software program. For example, an embodiment of the present application includes a computer program product, which includes a computer program carried on a computer readable medium, the computer program including a computer program for executing the process. Figure 5 A computer program for the photovoltaic power plant component-level wireless networking communication method is provided. In such an embodiment, the computer program can be downloaded and installed from a network via the communication component and / or installed from a removable medium. When executed by a central processing unit (CPU), the computer program performs various functions defined in the system of the present application.

[0094] It should be noted that the computer-readable medium shown in the embodiments of the present application can be a computer-readable signal medium or a computer-readable storage medium or any combination of the above two. The computer-readable storage medium can be, for example, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples of computer-readable storage media can include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM), a flash memory, an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In the present application, a computer-readable signal medium can include a data signal propagated in baseband or as part of a carrier wave, which carries a computer-readable computer program. This propagated data signal can take a variety of forms, including but not limited to an electromagnetic signal, an optical signal, or any suitable combination of the above. A computer-readable signal medium may also be any computer-readable medium other than a computer-readable storage medium that can transmit, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. A computer program embodied on a computer-readable medium may be transmitted using any suitable medium, including but not limited to wireless, wired, or any suitable combination thereof.

[0095] The flowcharts and block diagrams in the accompanying drawings illustrate the possible implementation architecture, functions and operations of the systems, methods and computer program products according to various embodiments of the present application. Among them, each box in the flowchart or block diagram can represent a module, program segment, or part of the code, and the above-mentioned module, program segment, or part of the code contains one or more executable instructions for implementing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in an order different from that marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram or flowchart, and the combination of boxes in the block diagram or flowchart, can be implemented with a dedicated hardware-based system that performs the specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0096] The units involved in the embodiments described in this application may be implemented by software or hardware, and the units described may also be set in a processor. In some cases, the names of these units do not constitute limitations on the units themselves.

[0097] Another aspect of the present application provides a computer-readable storage medium storing a computer program. When executed by a computer processor, the computer program causes the computer to execute the aforementioned method for wireless networking and communication of photovoltaic power plant components. The computer-readable storage medium may be included in the electronic device described in the above embodiments, or may exist independently and not be incorporated into the electronic device.

[0098] Another aspect of the present application provides a computer program product or computer program, which includes computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the computer device to implement the component-level wireless networking communication method for a photovoltaic power plant provided in each of the above embodiments.

[0099] The embodiments described above are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention, and should all be included in the scope of protection of the present invention.

Claims

1. A photovoltaic power station component-level wireless networking communication method, characterized in that: The photovoltaic power station includes multiple partitions, each partition includes multiple photovoltaic component groups, and each photovoltaic component group includes a number of photovoltaic components; wherein one photovoltaic component in each photovoltaic component group is a master node, and the remaining photovoltaic components are common nodes. The method includes: Selecting a target node; wherein the target node is a master node or one or more common nodes in a photovoltaic component group; generating a first communication strategy according to a location of the target node, wherein the location includes a partition where the target node is located and a photovoltaic component group where the target node is located; Sending instructions from the gateway to the target node through the first communication strategy; Generating a first communication strategy according to the location of the target node includes: Determining an association relationship between the gateway and the target node according to a location of the target node, where the association relationship includes an adjacent relationship and a non-adjacent relationship; If the association relationship between the gateway and the photovoltaic component group to which the target node belongs is a neighbor relationship, the first communication strategy is: sending a handshake request to the master node in the photovoltaic component group to which the target node belongs through the gateway; If the association relationship between the gateway and the photovoltaic component group to which the target node belongs is a non-neighbor relationship, the first communication strategy is: first, the gateway sends a handshake request to the master node of the photovoltaic component group that has a neighboring relationship with the gateway, and then the master node of the photovoltaic component group that has a neighboring relationship with the gateway sends a handshake request to the master node of the next-level photovoltaic component group, and so on, until the master node of the photovoltaic component group to which the target node belongs receives the handshake request.

2. The photovoltaic power station component-level wireless networking communication method according to claim 1, characterized in that: The method further comprises: The target node sends response information to the gateway through a second communication strategy.

3. The photovoltaic power station component-level wireless networking communication method according to claim 1, characterized in that: The method further comprises: Determine whether the target node is a master node. If the target node is a master node, receive the handshake request through the master node; if the target node is a common node, forward the handshake request to the common node through the master node.

4. The photovoltaic power station component-level wireless networking communication method according to claim 3, characterized in that: When the handshake between the gateway and the master node fails, an ordinary node is selected from multiple ordinary nodes in the photovoltaic component group where the master node is located as a new master node according to preset rules, and handshake communication is established between the new master node and the gateway.

5. The photovoltaic power station component-level wireless networking communication method according to claim 4, characterized in that: The preset rules are: The new master node is determined according to a priority pre-set for each photovoltaic component in the photovoltaic component group.

6. The photovoltaic power station component-level wireless networking communication method according to claim 5, characterized in that: The method further comprises: A digital number is set for each photovoltaic component in each photovoltaic component group, and the digital number is used to at least indicate the priority of each node.

7. A photovoltaic power station component-level wireless networking communication device based on the communication method according to any one of claims 1 to 6, characterized in that: The photovoltaic power station includes multiple partitions, each partition includes multiple photovoltaic component groups, each photovoltaic component group includes a number of photovoltaic components; wherein one photovoltaic component in each photovoltaic component group is a master node, and the remaining photovoltaic components are ordinary nodes, and the device includes: A selection module is used to select a target node; wherein the target node is a master node or one or more common nodes in a photovoltaic component group; a communication strategy generating module, configured to generate a first communication strategy according to a location of the target node, wherein the location includes a partition where the target node is located and a photovoltaic component group where the target node is located; A sending module is configured to send instructions from the gateway to the target node through the first communication strategy.

8. A computer device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the computer program, the steps of the photovoltaic power station component-level wireless networking communication method according to any one of claims 1 to 6 are implemented.

9. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the steps of the photovoltaic power station component-level wireless networking communication method according to any one of claims 1 to 6 are implemented.

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