CN116684873A - Photovoltaic tracking system and ad hoc network method - Google Patents

Photovoltaic tracking system and ad hoc network method Download PDF

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Publication number
CN116684873A
CN116684873A CN202310704480.9A CN202310704480A CN116684873A CN 116684873 A CN116684873 A CN 116684873A CN 202310704480 A CN202310704480 A CN 202310704480A CN 116684873 A CN116684873 A CN 116684873A
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photovoltaic
communication
box
control box
wisun
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杨颖�
王利兵
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Arctech Solar Holding Co Ltd
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Arctech Solar Holding Co Ltd
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Priority to CN202310704480.9A priority Critical patent/CN116684873A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/08—Access security
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00016—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus
    • H02J13/00017—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus using optical fiber
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00022—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00028—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment involving the use of Internet protocols
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S20/00—Supporting structures for PV modules
    • H02S20/30—Supporting structures being movable or adjustable, e.g. for angle adjustment
    • H02S20/32—Supporting structures being movable or adjustable, e.g. for angle adjustment specially adapted for solar tracking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/10—Network architectures or network communication protocols for network security for controlling access to devices or network resources
    • H04L63/101—Access control lists [ACL]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/40—Network security protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/60—Context-dependent security
    • H04W12/69—Identity-dependent
    • H04W12/71—Hardware identity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The application belongs to the technical field of photovoltaics, and provides an ad hoc network method of a photovoltaic tracking system, wherein the photovoltaic tracking system comprises a plurality of photovoltaic subarrays, each photovoltaic subarray comprises a photovoltaic communication box and a plurality of photovoltaic control boxes communicated with the photovoltaic communication box, and the ad hoc network method comprises the following steps: receiving the unique identification information of the photovoltaic control box and inputting the unique identification information of the photovoltaic control box into a communication white list of the photovoltaic communication box; the WISUN center module of the photovoltaic communication box screens the networking request of the photovoltaic control box based on the communication white list; and if the photovoltaic control box is positioned in the communication white list, passing through a network access request of the photovoltaic control box. The application realizes single network multi-node, and the photovoltaic tracking system communication of quick ad hoc network and quick data transmission.

Description

Photovoltaic tracking system and ad hoc network method
Technical Field
The application relates to the technical field of photovoltaics, in particular to a photovoltaic tracking system and an ad hoc network method.
Background
Currently, in the photovoltaic tracking system, the most commonly used wireless communication technology is the Lora technology and the zigbee technology, and each of the two technologies has advantages and disadvantages. For adopting the Lora technical scheme, as the transmission distance of the Lora module is long, a star networking scheme is generally adopted, and the Lora module has the advantages of simple network structure, convenient debugging and high data uploading speed, can be directly compatible with the traditional wired 485 scheme, and is widely adopted in a tracking bracket system at present. The system has the defects that for projects of complex terrains on site, the photovoltaic support and the photovoltaic module have strong shielding effect on wireless signals, so that signals of the Lora modules on part of control boxes cannot reach the signals of the Lora modules on the communication boxes, and therefore signal disconnection and communication interruption are caused. For the scheme adopting the zigbee technology, the method has the advantages that an ad hoc network scheme is adopted, the signal disconnection caused by complex terrains can be overcome, and the method has the defects of small number of single network nodes, large hop count and low signal transmission speed.
Disclosure of Invention
The application aims at the problem and provides a photovoltaic tracking system and an ad hoc network method.
In order to achieve the above object of the present application, the present application is achieved by the following techniques:
in one aspect, the application provides an ad hoc network method of a photovoltaic tracking system, the photovoltaic tracking system includes a plurality of photovoltaic sub-arrays, each of the photovoltaic sub-arrays includes a photovoltaic communication box and a plurality of photovoltaic control boxes in communication with the photovoltaic communication box, including:
receiving the unique identification information of the photovoltaic control box and inputting the unique identification information of the photovoltaic control box into a communication white list of the photovoltaic communication box;
the WISUN center module of the photovoltaic communication box screens the networking request of the photovoltaic control box based on the communication white list;
and if the photovoltaic control box is positioned in the communication white list, passing through a network access request of the photovoltaic control box.
In some embodiments, the receiving the unique identification information of the photovoltaic control box includes:
scanning the unique identification code of the photovoltaic control box in the photovoltaic subarray through debugging equipment to obtain the unique identification information of the photovoltaic control box;
the debugging equipment transmits the unique identification information of the photovoltaic control box to the photovoltaic communication box.
In some embodiments, before the WISUN center module of the photovoltaic communications box screens the photovoltaic control box for network access requests based on the communications whitelist, the method further comprises:
the photovoltaic communication box sends the received unique identification information of the photovoltaic control box to the communication white list of the WISUN center module of the photovoltaic communication box based on the command of the upper computer.
In some embodiments, the WISUN center module of the photovoltaic communications box screens the photovoltaic control box for network access requests based on the communications whitelist, including:
the WISUN center module starts a white list function;
receiving a network access request sent by a WISUN node module of the photovoltaic control box, and comparing whether the photovoltaic control box is in a communication white list of the photovoltaic communication box or not;
if the photovoltaic control box is in the communication white list of the photovoltaic communication box, a network access request is sent through a WISUN node module of the photovoltaic control box;
and if the photovoltaic control box is not in the communication white list of the photovoltaic communication box, rejecting the network access request sent by the WISUN node module of the photovoltaic control box.
In some embodiments, the unique identification information of the photovoltaic control box includes MAC address information of a WISUN node module in the photovoltaic control box and/or numbering information of the photovoltaic control box.
In some embodiments, before the wi sun center module of the photovoltaic communications box screens the network access request of the photovoltaic control box based on the communications whitelist, the method further includes:
and after the photovoltaic communication box is electrified, starting an ad hoc network based on an ad hoc network communication protocol stored by the WISUN center module.
In some embodiments, after the wi-sun center module starts the ad hoc network, before screening the network access request of the photovoltaic control box based on the communication whitelist, the method further includes:
and the photovoltaic communication box inquires whether the white list function of the WISUN center module is started or not based on an inquiry instruction sent by the upper computer, and feeds back an inquiry result to the upper computer.
In some embodiments, when the photovoltaic control box needs to be re-networked after replacement, the method further comprises:
sending a replacement instruction to the photovoltaic communication box in the photovoltaic subarray through the upper computer;
deleting the photovoltaic control box before replacement from the communication whitelist of the photovoltaic communication box, and adding the photovoltaic control box after replacement to the communication whitelist of the photovoltaic communication box based on unique identification information of the photovoltaic control box after replacement.
In some embodiments, further comprising:
when each photovoltaic subarray is connected with an SCADA system through an optical fiber ring network, the photovoltaic subarrays are managed through the SCADA system;
and after communication is established among the photovoltaic subarrays, sharing the sensor data acquired by each photovoltaic subarray.
In some embodiments, the present application further provides a photovoltaic tracking system, where the photovoltaic tracking system includes a plurality of photovoltaic sub-arrays, each of the photovoltaic sub-arrays includes a photovoltaic communication box and a plurality of photovoltaic control boxes in communication with the photovoltaic communication box, and the method for ad hoc networking of the photovoltaic tracking system includes:
the debugging equipment is used for scanning the unique identification code of the photovoltaic control box to identify and obtain the unique identification information of the photovoltaic control box and transmitting the unique identification information of the photovoltaic control box to the photovoltaic communication box;
the photovoltaic communication box is used for receiving the unique identification information of the photovoltaic control box and inputting the unique identification information of the photovoltaic control box into a communication white list of the photovoltaic communication box, and the photovoltaic communication box comprises a WISUN center module;
the photovoltaic communication box is further used for screening network access requests of the photovoltaic control box based on the communication white list by the WISUN center module;
the photovoltaic communication box is further used for completing configuration through the network access request of the photovoltaic control box until the photovoltaic control boxes in the photovoltaic subarrays if the photovoltaic control box is located in the communication white list of the photovoltaic communication box. The photovoltaic tracking system and the ad hoc network method provided by the application have at least the following beneficial effects: the WISUN technology adopted by the application solves the wireless communication problem faced by the photovoltaic tracking system, realizes single network multi-node and fast ad hoc network and fast data transmission photovoltaic tracking system communication.
Drawings
The above features, technical features, advantages and implementation manners of a photovoltaic tracking system and an ad hoc network method will be further described with reference to the accompanying drawings in a clearly understood manner.
FIG. 1 is a schematic diagram of one embodiment of an ad hoc networking method of a photovoltaic tracking system of the present application;
FIG. 2 is a schematic diagram of another embodiment of an ad hoc networking method of a photovoltaic tracking system of the present application;
fig. 3 is a schematic diagram of a WISUN network communication architecture.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth such as the particular system architecture, techniques, etc., in order to provide a thorough understanding of the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.
It should be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
For the sake of simplicity of the drawing, the parts relevant to the present application are shown only schematically in the figures, which do not represent the actual structure thereof as a product. Additionally, in order to simplify the drawing for ease of understanding, components having the same structure or function in some of the drawings are shown schematically with only one of them, or only one of them is labeled. Herein, "a" means not only "only this one" but also "more than one" case.
It should be further understood that the term "and/or" as used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.
In addition, in the description of the present application, the terms "first," "second," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following description will explain the specific embodiments of the present application with reference to the accompanying drawings. It is evident that the drawings in the following description are only examples of the application, from which other drawings and other embodiments can be obtained by a person skilled in the art without inventive effort.
It should be noted that: wi-SU (WISUN), known as WirelessUtilityNet, is a generic term for a series of standard wireless communication networks based on IEEE802.15.4 as the underlying protocol, and mainly comprises Wi-SUNFAN (WirelessUtilityField AreaNetwork) and Wi-SUNHAN (WirelessHomeAreaNetwork).
In one embodiment, as shown in fig. 1, the present application provides an embodiment of an ad hoc network method of a photovoltaic tracking system, in one aspect, the present application provides an ad hoc network method of a photovoltaic tracking system, the photovoltaic tracking system includes a plurality of photovoltaic subarrays, each of the photovoltaic subarrays includes a photovoltaic communication box and a plurality of photovoltaic control boxes in communication with the photovoltaic communication box, including:
s101, receiving the unique identification information of the photovoltaic control box and inputting the unique identification information of the photovoltaic control box into a communication white list of the photovoltaic communication box.
The unique identification information comprises the MAC address of the WISUN node module in the photovoltaic control box.
In this embodiment, in order to implement the application of the WISUN technology in the photovoltaic tracking system, main development work includes: and customizing a professional communication module applicable to a photovoltaic tracker manufacturer according to the purchased WISUN communication module.
The WISUN wireless module is of two types, one is a gateway module, which is mounted on the communications box, and one is a node module, which is mounted on the tracker control box. And developing communication software suitable for photovoltaic manufacturers according to the communication interface and networking mode of the WISUN module. The main work of the software comprises communication grouping and unpacking, configuration of the ad hoc network parameters and the like according to the specific communication format of the WISUN module.
In order to simplify the field debugging workload, the application provides an implementation scheme which is more suitable for the application scene of a photovoltaic tracking system.
Before leaving the factory, the WISUN module configures unified factory networking parameters, and an MAC address with a module unique identification mark is attached to a tracker control box.
After the product is installed on site, debugging is carried out for the first time, a two-dimensional code label on a scanned control box label, namely an MAC address of a WISUN module, is stored in the debugging equipment through handheld debugging equipment, and after the whole subarray is scanned, a MAC address list is imported into a Flash of an MCU of the subarray communication box through a debugging interface for storage.
S102, the WISUN center module of the photovoltaic communication box screens the network access request of the photovoltaic control box based on the communication white list.
Illustratively, after the wi sun center module of the photovoltaic communication box starts the ad hoc network, the network access request of the photovoltaic control box is screened based on the communication white list of the photovoltaic communication box.
In this embodiment, the device is powered on, and the gateway WISUN module on the communication box starts the ad hoc network, and because the WISUN node modules of other subarrays in the project also have the same factory parameters, the network may be accessed during the initial networking.
The functions of the WISUN center module and the WISUN node module are different, one is the center module which plays a role in establishing a network, and the other module only plays a role in routing, and the function is determined by a protocol of WISUN networking.
Therefore, the communication box program starts the white list mode of the WISUN gateway module according to the imported MAC address, so that only the module of the subarray can enter the network.
One communication box establishes a network, only can communicate with the control box of the subarray, and the control boxes of other subarrays cannot join the network.
And S103, if the photovoltaic control box is positioned in the communication white list, passing through a network access request of the photovoltaic control box.
Illustratively, if the photovoltaic control box is located in the communication white list of the photovoltaic communication box, the configuration is completed through the network access request of the photovoltaic control box until the photovoltaic control boxes in the photovoltaic subarrays.
In this embodiment, the configuration work of the network debugging stage is completed, including the initialization work of configuring the group-sending configuration network name, configuring the network channel, numbering the node tracker, and the like.
After the configuration work of the primary networking is completed, after the next power failure, the networking configuration work is not needed to be performed, and networking can be directly completed. After networking is completed, the communication box and the tracker can communicate with each other according to the private application layer communication protocol of each manufacturer, so that data acquisition and control command issuing can be performed.
The actual measurement result shows that the WISUN communication module and the configuration mode are simple in field debugging and good in communication performance, and solve some problems existing in the Lora mode and the zigbee communication mode.
The WISUN technology adopted by the application solves the wireless communication problem faced by the photovoltaic tracking system, realizes single network multi-node and fast ad hoc network and fast data transmission photovoltaic tracking system communication.
In one embodiment, the receiving the unique identification information of the photovoltaic control box includes:
scanning the unique identification code of the photovoltaic control box in the photovoltaic subarray through debugging equipment to obtain the unique identification information of the photovoltaic control box;
the debugging equipment transmits the unique identification information of the photovoltaic control box to the photovoltaic communication box.
Wherein each WISUN module has a specific MAC address. Besides the MAC address, each control box should have a respective number as identification, and a corresponding relation is established in the communication box, so that the information of which communication box receives which control box can be conveniently found through the corresponding relation.
Therefore, the unique identification code of the photovoltaic control box in this embodiment not only carries the MAC address of the WISUN node module of the photovoltaic control box, but also carries the serial number of the photovoltaic control box.
In one embodiment, before the WISUN center module of the photovoltaic communications box screens the network access request of the photovoltaic control box based on the communication whitelist of the photovoltaic communications box, the method further comprises:
the photovoltaic communication box sends the received unique identification information of the photovoltaic control box to the communication white list of the WISUN center module of the photovoltaic communication box based on the command of the upper computer.
In one embodiment, the wi sun center module of the photovoltaic communication box screens the network access request of the photovoltaic control box based on the communication whitelist, and the wi sun center module includes:
the WISUN center module starts a white list function;
receiving a network access request sent by a WISUN node module of the photovoltaic control box, and comparing whether the photovoltaic control box is in a communication white list of the photovoltaic communication box or not;
if the photovoltaic control box is in the communication white list of the photovoltaic communication box, a network access request is sent through a WISUN node module of the photovoltaic control box;
and if the photovoltaic control box is not in the communication white list of the photovoltaic communication box, rejecting the network access request sent by the WISUN node module of the photovoltaic control box.
Illustratively, after the wi-sun center module of the photovoltaic communication box starts the ad hoc network, the wi-sun center module starts a white list function; if a network access request sent by the WISUN node module of the photovoltaic control box is received, comparing whether the MAC address of the WISUN node module of the photovoltaic control box is in the communication white list of the photovoltaic communication box or not based on the communication white list of the photovoltaic communication box; if the MAC address of the WISUN node module of the photovoltaic control box is in the communication white list of the photovoltaic communication box, receiving a network access request sent by the WISUN node module of the photovoltaic control box; and if the MAC address of the WISUN node module of the photovoltaic control box is not in the communication white list of the photovoltaic communication box, rejecting the network access request sent by the WISUN node module of the photovoltaic control box.
In one embodiment, the unique identification information of the photovoltaic control box includes MAC address information of a WISUN node module in the photovoltaic control box and/or numbering information of the photovoltaic control box.
The unique identification information not only comprises the MAC address of the WISUN node module in the photovoltaic control box, but also comprises the serial number of the photovoltaic control box.
In the present application, the identification may be performed based on only the MAC address or the number of the control box.
In an actual application scene, the number of the control box is temporarily compiled according to the installation position when in field installation and debugging, the MAC address of the WISUN module is obtained after the two-dimensional code of the control box is scanned, meanwhile, the number of the control box is manually input, the MAC address and the number of the control box are combined, and then the number of the control box and the MAC address are imported into the communication box, so that the specific photovoltaic control box can be easily determined according to the MAC address.
In one embodiment, before the wi sun center module of the photovoltaic communication box screens the network access request of the photovoltaic control box based on the communication whitelist, the method further includes:
and after the photovoltaic communication box is electrified, starting an ad hoc network based on an ad hoc network communication protocol stored by the WISUN center module.
In one embodiment, if the photovoltaic control box is located in the communication white list of the photovoltaic communication box, the configuration is completed through the network access request of the photovoltaic control box until the photovoltaic control boxes in the photovoltaic subarrays all include:
and performing configuration operation of a networking debugging stage on the photovoltaic control boxes in the photovoltaic subarrays, wherein the configuration operation comprises the steps of configuring a group-sending configuration network name, configuring a network channel and initializing the number of the photovoltaic control boxes.
In one embodiment, after the wi-sun center module starts the ad hoc network, before screening the network access request of the photovoltaic control box based on the communication whitelist, the method further includes:
and the photovoltaic communication box inquires whether the white list function of the WISUN center module is started or not based on an inquiry instruction sent by the upper computer, and feeds back an inquiry result to the upper computer.
The photovoltaic communication box is used for inquiring whether the white list function of the WISUN center module of the photovoltaic communication box is started or not based on the inquiry instruction after receiving the inquiry instruction sent by the upper computer, and feeding back the inquiry result to the upper computer.
In one embodiment, further comprising:
and the photovoltaic communication box downloads the MAC address of the WISUN node module in the photovoltaic control box to a communication white list of the WISUN center module of the photovoltaic communication box based on the command of the upper computer.
In one embodiment, when the photovoltaic control box needs to be re-networked after being replaced, the method further comprises:
sending a replacement instruction to the photovoltaic communication box in the photovoltaic subarray through the upper computer;
deleting the photovoltaic control box before replacement from the communication whitelist of the photovoltaic communication box, and adding the photovoltaic control box after replacement to the communication whitelist of the photovoltaic communication box based on unique identification information of the photovoltaic control box after replacement.
Specifically, when the photovoltaic control box in the photovoltaic subarray needs to be replaced, a replacement instruction is sent to the photovoltaic communication box in the photovoltaic subarray through the upper computer; and deleting the MAC address of the WISUN node module of the photovoltaic control box from the communication white list of the photovoltaic communication box, and adding the MAC address of the WISUN node module of the photovoltaic control box after replacement to the communication white list of the photovoltaic communication box.
In one embodiment, further comprising:
when each photovoltaic subarray is connected with an SCADA system through an optical fiber ring network, the photovoltaic subarrays are managed through the SCADA system;
and after communication is established among the photovoltaic subarrays, sharing the sensor data acquired by each photovoltaic subarray.
In this embodiment, for ease of management, each photovoltaic subarray is internally connected to a wireless network to establish an independent network communication. Different photovoltaic subarrays are connected into the SCADA system through the optical fiber ring network. Communication can also be established between the photovoltaic sub-arrays, mainly for sharing data of some sensors.
In one embodiment, as shown in fig. 2, the present application further provides an ad hoc network method of a photovoltaic tracking system, which specifically includes:
s1, a debugging device scans an identification code of a control box and stores the identification code into the debugging device, wherein the identification code is generated based on an MAC address of a WISUN node module in the control box, and the debugging device can be a mobile phone, a tablet personal computer and the like;
s2, the debugging equipment is connected with the communication box through a debugging interface on the communication box, the identified address list information is transmitted to the communication box, the communication box receives the address list information and stores the address list information into an internal FLASH, and a host computer of the communication box can send a command to download an MAC address list in the communication box FLASH into a white list of a gateway WISUN module; the WISUN module hardware is internally provided with a singlechip and a storage module and is provided with an ad hoc network communication protocol, and network connection can be automatically established according to the MAC address in the white list as long as the communication box is in a power-on state, namely the WISUN module is powered on. The internal FLASH is a storage module of the communication box and is used for storing various received information. The WISUN module is connected with the communication box through a communication interface, and the upper computer sends data messages or performs parameter configuration to the WISUN module through the communication box
S3, the WISUN gateway module of the communication box starts an ad hoc network, the upper computer starts a white list function, the WISUN node module of the control box sends a pairing request to the communication box, and the WISUN gateway module of the control box can check whether the WISUN node of the control box is in the white list or not because the WISUN gateway module of the communication box has already started the white list function, if so, the network access is allowed, otherwise, the network access is not allowed.
And S4, after the pairing is completed, repeating the previous operation, and pairing the next control box until the configuration of the control boxes in the subarrays is completed.
S5, when one control box in the subarray is damaged and needs to be replaced, the MAC address of the WISUN module of the original bad control box is deleted from the white list, the white list of the newly replaced WISUN module of the control box is added, and the specific operation is that the upper computer sends a deleting instruction to the communication box, then the communication box sends the deleting instruction to the WISUN gateway module, the WISUN gateway module starts deleting action, and the adding work and the deleting process are the same.
In this embodiment, a query action may be added before networking pairing, to query whether the gateway WISUN module has already opened the white list function, which specifically includes: if the upper computer wants to confirm whether to start the white list function, the upper computer sends a query instruction to the WISUN module through the communication box, and the WISUN module feeds back to the upper computer through the communication box after querying.
In one embodiment, the present application further provides a photovoltaic tracking system, where the photovoltaic tracking system includes a plurality of photovoltaic sub-arrays, each of the photovoltaic sub-arrays includes a photovoltaic communication box and a plurality of photovoltaic control boxes controlled by the photovoltaic communication box, and an ad hoc network method using the photovoltaic tracking system includes:
the debugging equipment is used for scanning the unique identification code of the photovoltaic control box to identify and obtain the unique identification information of the photovoltaic control box and transmitting the unique identification information of the photovoltaic control box to the photovoltaic communication box;
the photovoltaic communication box is used for receiving the unique identification information of the photovoltaic control box and inputting the unique identification information of the photovoltaic control box into a communication white list of the photovoltaic communication box, and the photovoltaic communication box comprises a WISUN center module;
the photovoltaic communication box is further used for screening network access requests of the photovoltaic control box based on the communication white list by the WISUN center module;
the photovoltaic communication box is further used for completing configuration through the network access request of the photovoltaic control box until the photovoltaic control boxes in the photovoltaic subarrays if the photovoltaic control box is located in the communication white list of the photovoltaic communication box.
The application provides a WISUN technology, which solves the wireless communication problem faced by the current photovoltaic tracking system. The WISUN technology is a wireless communication technology which is rising in the two years, and is mainly used in the intelligent wireless meter reading industry. For the application scene of the meter reading industry, the technology is also suitable for the photovoltaic tracking industry, and is mainly characterized by an ad hoc network, low transmitting power and capability of meeting the communication requirements of complex terrains. The WISUN module is provided by domestic and foreign manufacturers at present, and secondary development is carried out on the basis of the WISUN module, so that the problem in communication of the photovoltaic tracking bracket can be solved.
In the embodiment, the wireless communication problem faced by the photovoltaic tracking system is solved by adopting the WISUN technology, so that the photovoltaic tracking system realizes communication of single network multiple nodes, fast ad hoc network and fast data transmission.
It will be apparent to those skilled in the art that the above-described program modules are only illustrated in the division of the above-described program modules for convenience and brevity, and that in practical applications, the above-described functional allocation may be performed by different program modules, i.e., the internal structure of the apparatus is divided into different program units or modules, to perform all or part of the above-described functions. The program modules in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one processing unit, where the integrated units may be implemented in a form of hardware or in a form of a software program unit. In addition, the specific names of the program modules are also only for distinguishing from each other, and are not used to limit the protection scope of the present application.
In the foregoing embodiments, the descriptions of the embodiments are focused on, and the parts of a certain embodiment that are not described or depicted in detail may be referred to in the related descriptions of other embodiments.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. The above-described embodiments of the apparatus are exemplary only, and exemplary, the division of the modules or units is merely a logical function division, and there may be additional divisions in actual implementation, exemplary, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection via interfaces, devices or units, which may be in electrical, mechanical or other forms.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
It should be noted that the above embodiments can be freely combined as needed. The foregoing is merely a preferred embodiment of the present application and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present application, which are intended to be comprehended within the scope of the present application.

Claims (10)

1. An ad hoc networking method of a photovoltaic tracking system, the photovoltaic tracking system including a plurality of photovoltaic sub-arrays, each of the photovoltaic sub-arrays including a photovoltaic communication box and a plurality of photovoltaic control boxes in communication with the photovoltaic communication box, the method comprising:
receiving the unique identification information of the photovoltaic control box and inputting the unique identification information of the photovoltaic control box into a communication white list of the photovoltaic communication box;
the WISUN center module of the photovoltaic communication box screens the networking request of the photovoltaic control box based on the communication white list;
and if the photovoltaic control box is positioned in the communication white list, passing through a network access request of the photovoltaic control box.
2. The method of claim 1, wherein receiving the unique identification information of the photovoltaic control box comprises:
scanning the unique identification code of the photovoltaic control box in the photovoltaic subarray through debugging equipment to obtain the unique identification information of the photovoltaic control box;
the debugging equipment transmits the unique identification information of the photovoltaic control box to the photovoltaic communication box.
3. The method of claim 1, further comprising, prior to screening the photovoltaic control box for networking requests based on the communication whitelist by the WISUN center module of the photovoltaic communication box:
the photovoltaic communication box sends the received unique identification information of the photovoltaic control box to the communication white list of the WISUN center module of the photovoltaic communication box based on the command of the upper computer.
4. The method of claim 1, wherein the wi sun center module of the photovoltaic communication box screens the photovoltaic control box for network access requests based on the communication whitelist, comprising:
the WISUN center module starts a white list function;
receiving a network access request sent by a WISUN node module of the photovoltaic control box, and comparing whether the photovoltaic control box is in a communication white list of the photovoltaic communication box or not;
if the photovoltaic control box is in the communication white list of the photovoltaic communication box, a network access request is sent through a WISUN node module of the photovoltaic control box;
and if the photovoltaic control box is not in the communication white list of the photovoltaic communication box, rejecting the network access request sent by the WISUN node module of the photovoltaic control box.
5. The method of claim 1, wherein the unique identification information of the photovoltaic control box comprises MAC address information of a WISUN node module in the photovoltaic control box and/or numbering information of the photovoltaic control box.
6. The method of claim 1, wherein before the wi sun center module of the photovoltaic communication box screens the photovoltaic control box for network access requests based on the communication whitelist, further comprising:
and after the photovoltaic communication box is electrified, starting an ad hoc network based on an ad hoc network communication protocol stored by the WISUN center module.
7. The method for ad hoc networking of a photovoltaic tracking system according to claim 6, wherein after the wi sun center module starts ad hoc networking, before screening the request for networking the photovoltaic control box based on the communication whitelist, further comprises:
and the photovoltaic communication box inquires whether the white list function of the WISUN center module is started or not based on an inquiry instruction sent by the upper computer, and feeds back an inquiry result to the upper computer.
8. The method of claim 1, further comprising, when the photovoltaic control box needs to be re-networked after replacement:
sending a replacement instruction to the photovoltaic communication box in the photovoltaic subarray through the upper computer;
deleting the photovoltaic control box before replacement from the communication whitelist of the photovoltaic communication box, and adding the photovoltaic control box after replacement to the communication whitelist of the photovoltaic communication box based on unique identification information of the photovoltaic control box after replacement.
9. The method of ad hoc networking of a photovoltaic tracking system according to any of claims 1-8, further comprising:
when each photovoltaic subarray is connected with an SCADA system through an optical fiber ring network, the photovoltaic subarrays are managed through the SCADA system;
and after communication is established among the photovoltaic subarrays, sharing the sensor data acquired by each photovoltaic subarray.
10. A photovoltaic tracking system comprising a plurality of photovoltaic sub-arrays, each of the photovoltaic sub-arrays comprising a photovoltaic communications box and a plurality of photovoltaic control boxes in communication with the photovoltaic communications box, the photovoltaic tracking system comprising an ad hoc networking method employing the photovoltaic tracking system of any of claims 1-9, comprising:
the debugging equipment is used for scanning the unique identification code of the photovoltaic control box to identify and obtain the unique identification information of the photovoltaic control box and transmitting the unique identification information of the photovoltaic control box to the photovoltaic communication box;
the photovoltaic communication box is used for receiving the unique identification information of the photovoltaic control box and inputting the unique identification information of the photovoltaic control box into a communication white list of the photovoltaic communication box, and the photovoltaic communication box comprises a WISUN center module;
the photovoltaic communication box is further used for screening network access requests of the photovoltaic control box based on the communication white list by the WISUN center module;
the photovoltaic communication box is further used for completing configuration through the network access request of the photovoltaic control box until the photovoltaic control boxes in the photovoltaic subarrays if the photovoltaic control box is located in the communication white list of the photovoltaic communication box.
CN202310704480.9A 2023-06-14 2023-06-14 Photovoltaic tracking system and ad hoc network method Pending CN116684873A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117478046A (en) * 2023-12-28 2024-01-30 南昌南飞防火设备制造有限公司 Tracking bracket system debugging method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117478046A (en) * 2023-12-28 2024-01-30 南昌南飞防火设备制造有限公司 Tracking bracket system debugging method
CN117478046B (en) * 2023-12-28 2024-03-01 南昌南飞防火设备制造有限公司 Tracking bracket system debugging method

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