CN113259919A - Photovoltaic module data communication method and system and photovoltaic module device - Google Patents
Photovoltaic module data communication method and system and photovoltaic module device Download PDFInfo
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- CN113259919A CN113259919A CN202110518230.7A CN202110518230A CN113259919A CN 113259919 A CN113259919 A CN 113259919A CN 202110518230 A CN202110518230 A CN 202110518230A CN 113259919 A CN113259919 A CN 113259919A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention discloses a photovoltaic module data communication method, a photovoltaic module data communication system and a photovoltaic module device, and belongs to the technical field of photovoltaics. Through the technical scheme provided by the embodiment of the invention, the photovoltaic component device sends component level information including a data packet of voltage, current, power and temperature operation state parameters to the adjacent photovoltaic component device through the Bluetooth component, so that the data is sent, relayed and received in a network layer, then proxy is carried out through the Bluetooth gateway, and finally, different communication modes (including but not limited to RS485, 4G, 5G, NB-IoT, LoRa, wifi and Bluetooth mesh networking) suitable for field installation are adopted to release required specified information on an energy management platform. The photovoltaic module device information acquisition and manual operation and maintenance cost is greatly reduced, the problem of short plate of current photovoltaic new energy direct current side informatization of 'the last 1 kilometer' is effectively solved, 100% transparency of power station performance and functions is realized, and the operation and maintenance efficiency of a photovoltaic power station is improved.
Description
Technical Field
The invention relates to the technical field of photovoltaic, in particular to a photovoltaic module data communication method, a photovoltaic module data communication system and a photovoltaic module device.
Background
China, as a major country in the photovoltaic industry, has the most complete industry chain in the world. The photovoltaic power generation device is the first global position of the largest photovoltaic product manufacturing country and export country in the world, and the photovoltaic power installation amount and the power generation amount in China have been continuously listed for many years. At present, a photovoltaic power plant at least comprises a plurality of photovoltaic modules so as to realize the power generation function.
However, the operation and maintenance mode and the informatization mode of the existing photovoltaic power station are more traditional, manual collection is needed to be carried out on the photovoltaic modules in the manual mode for information collection and operation and maintenance, and only the power generation parameters of each photovoltaic module are needed to realize automatic collection, so that the operation and maintenance are not facilitated, and the operation and maintenance efficiency of the photovoltaic power station is reduced.
Disclosure of Invention
In order to solve the problems in the prior art, embodiments of the present invention provide a photovoltaic module data communication method, a system, and a photovoltaic module device. The technical scheme is as follows:
in one aspect, a photovoltaic module data communication method is provided, and the method includes:
the method is applied to a system at least comprising a plurality of photovoltaic module devices, wherein the photovoltaic module devices are at least provided with Bluetooth modules and are in network connection according to an MESH network through corresponding Bluetooth modules, and the method comprises the following steps:
acquiring a data packet sent by an adjacent photovoltaic module device through the Bluetooth module;
judging whether the data packet is complete and whether the format of the data packet is correct;
judging whether to forward the data packet to other adjacent photovoltaic module devices or not according to the demand information;
and if so, forwarding the data packet to the next photovoltaic module device in the MESH network.
Optionally, the method further includes:
acquiring node information of the node; the node information comprises operation state parameters such as voltage, current, power and temperature, and the operation state parameters are used for indicating whether the photovoltaic module device operates normally;
judging whether the node information needs to be uploaded or not according to the demand information;
and if so, generating the data packet according to the node information, and sending the data packet to an adjacent node through the Bluetooth assembly.
Optionally, after the data packet is uploaded by the bluetooth component, the method further includes:
starting a Bluetooth assembly in real time, and receiving a confirmation message sent by the adjacent photovoltaic assembly device;
and the confirmation message is sent to the current photovoltaic module device by the Bluetooth gateway through at least one photovoltaic module device after receiving the data packet.
Optionally, before determining whether the node information needs to be uploaded according to the demand information, the method further includes:
receiving a collection instruction sent by the adjacent photovoltaic module device, wherein the collection instruction is used for indicating the Bluetooth gateway to collect node information of the current photovoltaic module device;
optionally, before determining whether the node information needs to be uploaded according to the demand information, the method further includes:
the node information indicates that the current photovoltaic module device is abnormal in operation.
Optionally, before the obtaining, by the bluetooth module, the data packet sent by the adjacent photovoltaic module device, the method further includes:
the photovoltaic module device is in a dormant state, and after the wake-up instruction is received, the photovoltaic module device operates.
In another aspect, a photovoltaic module data communication system is provided, the system comprises a plurality of photovoltaic module devices, a bluetooth gateway, a server and a user terminal, the photovoltaic module devices are at least provided with bluetooth modules, the photovoltaic module devices are connected with each other through corresponding bluetooth modules according to an MESH network,
the Bluetooth gateway is used for receiving a data packet sent by the photovoltaic component device through the Bluetooth component and sending a collection instruction to the photovoltaic component device through the Bluetooth component;
the server is used for receiving the data packet, performing operation and maintenance operation and initiating a collection instruction;
the user terminal is used for initiating a collection instruction;
the photovoltaic module device includes:
the communication module is used for acquiring a data packet sent by the adjacent photovoltaic module device through the Bluetooth module;
the processing module is used for judging whether the data packet is complete and whether the format of the data packet is correct;
judging whether to forward the data packet to other adjacent photovoltaic module devices or not according to the demand information;
and if so, forwarding the data packet to the next photovoltaic module device in the MESH network.
Optionally, the server is configured to receive the data packet, perform operation and maintenance operations, and initiate a collection instruction;
receiving data packets sent by the photovoltaic module devices;
respectively monitoring the running states of the photovoltaic module devices according to the data packets;
if the running state indicates that the photovoltaic assembly device is abnormal, initiating operation and maintenance operation aiming at the photovoltaic assembly device, and sending a collection instruction to the photovoltaic assembly device; or
And receiving operation and maintenance operation or collection instructions sent by the user terminal, and sending collection instructions to the photovoltaic module device.
Optionally, the step of the user terminal initiating a collection instruction includes:
respectively monitoring and displaying the running states of the photovoltaic module devices according to the data packets;
and acquiring operation and maintenance operation aiming at the photovoltaic assembly device initiated by a user, and sending a collection instruction to the photovoltaic assembly device through the server.
Optionally, the processing module is further configured to:
acquiring node information of the node; the node information comprises voltage, current, power, temperature and operation state parameters, and the operation state parameters are used for indicating whether the photovoltaic module device operates normally or not;
judging whether the node information needs to be uploaded or not according to the demand information;
and if so, generating the data packet according to the node information, and sending the data packet to an adjacent node through the Bluetooth assembly.
Optionally, the processing module is further configured to:
starting a Bluetooth assembly in real time, and receiving a confirmation message sent by the adjacent photovoltaic assembly device;
and the confirmation message is sent to the current photovoltaic module device by the Bluetooth gateway through at least one photovoltaic module device after receiving the data packet.
Optionally, the processing module is further configured to:
receiving a collection instruction sent by the adjacent photovoltaic assembly device through the Bluetooth module, wherein the collection instruction is used for indicating the Bluetooth gateway to collect node information of the current photovoltaic assembly device;
optionally, the processing module is further configured to:
and judging that the node information indicates that the current photovoltaic assembly device operates abnormally.
Optionally, the processing module is further configured to:
the photovoltaic module device is in a dormant state, and after the wake-up instruction is received, the photovoltaic module device operates.
In another aspect, a photovoltaic module apparatus is provided, wherein the apparatus is configured with at least a bluetooth module, and the apparatus further includes:
the communication module is used for acquiring a data packet sent by the adjacent photovoltaic module device through the Bluetooth module;
the processing module is used for judging whether the data packet is complete and whether the format of the data packet is correct;
the processing module is further used for judging whether to forward the data packet to other adjacent photovoltaic module devices according to the demand information;
and if so, the processing module is further configured to forward the data packet to a next photovoltaic module device in the MESH network through the bluetooth module.
Optionally, the processing module is further configured to:
acquiring node information of the node; the node information comprises voltage, current, power and temperature operation state parameters, and the operation state parameters are used for indicating whether the photovoltaic module device operates normally or not;
judging whether the node information needs to be uploaded or not according to the demand information;
and if so, generating the data packet according to the node information, and sending the data packet to an adjacent node through the Bluetooth assembly.
Optionally, the processing module is further configured to:
starting a Bluetooth assembly in real time, and receiving a confirmation message sent by the adjacent photovoltaic assembly device;
and the confirmation message is sent to the current photovoltaic module device by the Bluetooth gateway through at least one photovoltaic module device after receiving the data packet.
Optionally, the processing module is further configured to:
receiving a collection instruction sent by the adjacent photovoltaic assembly device through the Bluetooth module, wherein the collection instruction is used for indicating the Bluetooth gateway to collect node information of the current photovoltaic assembly device;
optionally, the processing module is further configured to:
and judging that the node information indicates that the current photovoltaic assembly device operates abnormally.
Optionally, the processing module is further configured to:
the photovoltaic module device is in a dormant state, and after the wake-up instruction is received, the photovoltaic module device operates.
The technical scheme provided by the embodiment of the invention has the following beneficial effects:
the photovoltaic module device sends a data packet comprising voltage, current, power and temperature operation state parameters to an adjacent photovoltaic module device through a Bluetooth module, so that data are sent, relayed and received in a network layer, then proxy is carried out through a Bluetooth gateway, and finally required specified messages are issued on an energy management platform in different communication modes (including but not limited to RS485, 4G, 5G, NB-IoT, LoRa, wifi and Bluetooth mesh networking) suitable for field installation. The photovoltaic module device information acquisition and manual operation and maintenance cost is greatly reduced, the problem of short plate of current photovoltaic new energy direct current side informatization of 'the last 1 kilometer' is effectively solved, 100% transparency of power station performance and functions is realized, and the operation and maintenance efficiency of a photovoltaic power station is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain adjacent drawings based on these drawings without creative efforts.
Fig. 1 is a flowchart of a data communication method for a photovoltaic module according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a photovoltaic module data communication system according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a photovoltaic module device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All the adjacent embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative efforts belong to the protection scope of the present invention.
Example one
Referring to fig. 1, an embodiment of the present invention provides a photovoltaic module data communication method, which is applied to a system at least including a plurality of photovoltaic module devices, where the photovoltaic module devices are at least configured with bluetooth modules, and the plurality of photovoltaic module devices are connected to each other via corresponding bluetooth modules in a network according to a MESH network, and the method includes:
101. acquiring a data packet sent by an adjacent photovoltaic module device through a Bluetooth module;
102. judging whether the data packet is complete and whether the format of the data packet is correct;
103. judging whether to forward the data packet to other adjacent photovoltaic module devices or not according to the demand information;
if yes, go to step 104;
104. and forwarding the data packet to the next photovoltaic assembly device indicated by the MESH network.
Optionally, the method further includes:
201. acquiring node information of the node; the node information comprises operation state parameters such as voltage, current, temperature and power, and the operation state parameters are used for indicating whether the photovoltaic module device normally operates; in addition to the above operating condition parameters, other operating condition parameters may be included according to different field installations and different photovoltaic module devices, and the specific operating condition parameters are not limited in the embodiment of the present invention.
202. Judging whether the node information needs to be uploaded or not according to the requirement information;
203. if so, generating a data packet according to the node information, and sending the data packet to an adjacent node through the Bluetooth component.
Optionally, after step 203, the method further includes:
301. starting a Bluetooth assembly in real time, and receiving a confirmation message sent by an adjacent photovoltaic assembly device;
the confirmation message is sent to the current photovoltaic module device by the bluetooth gateway through at least one photovoltaic module device after the bluetooth gateway receives the data packet.
Optionally, before step 103, the method further includes:
401. receiving a collection instruction sent by an adjacent photovoltaic module device, wherein the collection instruction is used for indicating a Bluetooth gateway to collect node information of the current photovoltaic module device;
optionally, before step 103, the method further includes:
402. the node information indicates that the current photovoltaic module device is abnormal in operation.
Optionally, before step 101, the method further includes:
the photovoltaic module device is in a dormant state, and after the wake-up instruction is received, the photovoltaic module device operates.
It should be noted that, the invention uses BLE5.1&10dBm maximum power output bluetooth hardware as a carrier, and through bluetooth MESH networking technology, makes information such as photovoltaic new energy component level voltage, cascade current, photovoltaic panel power, junction box temperature, GPS and the like communicate with each other between nodes and between bluetooth gateways, so as to realize data transmission, relaying and reception in a network layer, and then proxy through the bluetooth gateways, and finally adopts different communication modes (including but not limited to RS485, 4G, 5G, HPLC, NB-IoT, LoRa, wifi, bluetooth MESH networking) suitable for field installation, and issues required specified information on an energy management platform. And in the whole transmission process, the network key is adopted to encrypt and verify the message, so that safety guarantee is provided for all the Bluetooth mesh network messages. Even if a failure occurs in an individual node, data generated immediately before the node can be reproduced from other nodes at different times. When data reliability can be guaranteed, the photovoltaic module and the Bluetooth gateway only need to store short-period data, then report layer by layer, and timely compare the data reliability during reporting. The photovoltaic module is large in scale and large in area, information of the photovoltaic module is transparent, and meanwhile cost input caused by increase of data storage load on the side of the photovoltaic module is reduced.
Example two
Referring to fig. 2, an embodiment of the present invention provides a photovoltaic module data communication system, which includes a plurality of photovoltaic module apparatuses 201, a bluetooth gateway 202, a server 203, and a user terminal 204, where the photovoltaic module apparatuses 201 are configured with at least a bluetooth module 2011, the plurality of photovoltaic module apparatuses 201 are connected to each other via the corresponding bluetooth module 2011 according to a MESH network,
the bluetooth gateway 202 is configured to receive a data packet sent by the photovoltaic module apparatus 201 through the bluetooth module 2011, and send a collection instruction to the photovoltaic module apparatus 201 through the bluetooth module 2011;
the server 203 is used for receiving the data packet, performing operation and maintenance operation and initiating a collection instruction;
the user terminal 204 is configured to initiate a collection instruction;
the photovoltaic module apparatus 201 includes:
the communication module is used for acquiring a data packet sent by the adjacent photovoltaic module device through the bluetooth module 2011;
the processing module is used for judging whether the data packet is complete and whether the format of the data packet is correct;
judging whether to forward the data packet to other adjacent photovoltaic module devices 201 or not according to the requirement information;
if so, the data packet is forwarded to the next photovoltaic module device 201 indicated by the MESH network.
Optionally, the server 202 is configured to receive the data packet, perform operation and maintenance operations, and initiate a collection instruction;
receiving data packets sent by a plurality of photovoltaic module devices 201;
respectively monitoring the operating states of the photovoltaic module devices 201 according to the data packets;
if the running state indicates that the photovoltaic module device 201 is abnormal, initiating operation and maintenance operations for the photovoltaic module device 201, and sending a collection instruction to the photovoltaic module device 201; or
Receiving an operation and maintenance operation or collection instruction sent by the user terminal 204, and sending the collection instruction to the photovoltaic module device 201.
Optionally, the step of the user terminal 204 initiating the collecting instruction includes:
respectively monitoring and displaying the running state of the photovoltaic module device 201 according to the data packets;
the operation and maintenance operation initiated by the user for the photovoltaic assembly device 201 is acquired, and a collection instruction is sent to the photovoltaic assembly device 201 through the server 203.
Optionally, the processing module is further configured to:
acquiring node information of the node; the node information comprises voltage, current, temperature and operation state parameters, and the operation state parameters are used for indicating whether the photovoltaic module device normally operates;
judging whether the node information needs to be uploaded or not according to the requirement information;
if so, generating a data packet according to the node information, and sending the data packet to an adjacent node through the Bluetooth component.
Optionally, the processing module is further configured to:
starting the bluetooth module 2011 in real time, and receiving a confirmation message sent by the adjacent photovoltaic module device;
the confirmation message is sent to the current photovoltaic module device by the bluetooth gateway 202 through at least one photovoltaic module device after receiving the data packet.
Optionally, the processing module is further configured to:
receiving a collection instruction sent by an adjacent photovoltaic module device through a Bluetooth module 2011, wherein the collection instruction is used for indicating a Bluetooth gateway to collect node information of the current photovoltaic module device;
optionally, the processing module is further configured to:
and judging that the node information indicates that the current photovoltaic module device operates abnormally.
Optionally, the processing module is further configured to:
the photovoltaic module device is in a dormant state, and after the wake-up instruction is received, the photovoltaic module device operates.
EXAMPLE III
Referring to fig. 3, an embodiment of the present invention provides a photovoltaic module apparatus 3, and referring to fig. 3, the apparatus is configured with at least a bluetooth module 301, and the apparatus further includes:
the communication module 302 is used for acquiring a data packet sent by an adjacent photovoltaic module device through a Bluetooth module;
a processing module 303, configured to determine whether the data packet is complete and whether the format of the data packet is correct;
the processing module 303 is further configured to determine whether to forward the data packet to another adjacent photovoltaic module device according to the demand information;
if so, the processing module 303 is further configured to forward the data packet to the next photovoltaic module device in the MESH network through the bluetooth module.
Optionally, the processing module 303 is further configured to:
acquiring node information of the node; the node information comprises voltage, current, temperature and operation state parameters, and the operation state parameters are used for indicating whether the photovoltaic module device normally operates;
judging whether the node information needs to be uploaded or not according to the requirement information;
if so, generating a data packet according to the node information, and sending the data packet to an adjacent node through the Bluetooth component.
Optionally, the processing module 303 is further configured to:
starting a Bluetooth assembly in real time, and receiving a confirmation message sent by an adjacent photovoltaic assembly device;
the confirmation message is sent to the current photovoltaic module device by the bluetooth gateway through at least one photovoltaic module device after the bluetooth gateway receives the data packet.
Optionally, the processing module 303 is further configured to:
receiving a collection instruction sent by an adjacent photovoltaic assembly device through a Bluetooth assembly, wherein the collection instruction is used for indicating a Bluetooth gateway to collect node information of the current photovoltaic assembly device;
optionally, the processing module 303 is further configured to:
and judging that the node information indicates that the current photovoltaic module device operates abnormally.
Optionally, the processing module 303 is further configured to:
the photovoltaic module device is in a dormant state, and after the wake-up instruction is received, the photovoltaic module device operates.
All the above-mentioned optional technical solutions can be combined arbitrarily to form the optional embodiments of the present invention, and are not described herein again.
In addition, in an embodiment of the present invention, the server at least includes the smart energy management system, and the system may include: the system comprises a file management module, a remote operation module, a query analysis module and a system management module. The intelligent energy management system accurate to the component level provides completely different operation and maintenance modes, can detect the performance reduction of the power station in time, and can remotely and quickly point out the specific position and the fault type of a fault point. Many fault types, such as "defective diodes", "PID", "shadowed", etc., can be displayed in the remote monitoring platform. While common faults like "hot spot effects" can also be detected by other approaches, such as using an infrared thermal imager, the smart energy management platform can provide more accurate and fully automated analysis. The maintainer or installer of the photovoltaic power station can perform comprehensive analysis on the power station at home, in an office or on mobile equipment. It is then only necessary to combine the fault alert level of the system to decide whether to take immediate maintenance action, such as cleaning the components, replacing the diodes or components, etc. The whole maintenance process does not need to ask experts to carry out expensive field inspection, and the workload is remarkably reduced. Moreover, the charging level of the intelligent energy management system is only equivalent to that of a common inverter portal network.
Including photovoltaic module, bluetooth gateway, router, wisdom energy management system and the handheld photovoltaic management terminal of configuration bluetooth BLE module, through MESH network deployment and the communication between bluetooth gateway and the management system, provide information such as subassembly level voltage, electric current, temperature, power and GPS for the user. Wherein, between the subassembly, through bluetooth MESH networking communication between subassembly and the gateway, bluetooth gateway and wisdom energy management system can communicate through multiple mode: in one case, if the smart energy management system is deployed in a local area network, the bluetooth gateway is connected with the router through WIFI or a wired network, and communicates with the smart energy management system server in the local area network through the router. In another case, if the smart energy management system is deployed at the cloud end, the bluetooth gateway is connected with the router through the WIFI or the wired network, and is connected with the smart energy management system which is brought to the cloud end through the router in a wired manner, or is directly connected with the smart energy management system at the cloud end through the 4G network module. Or the intelligent energy management system is directly or indirectly connected with the handheld photovoltaic management terminal through a WIFI hotspot or a 4G network for data interaction. Besides, other communication modes include, but are not limited to, RS485, 4G, 5G, HPLC, NB-IoT, LoRa, wifi, Bluetooth MESH networking and the like, and the actually established communication mode depends on whether the communication mode is suitable for a field installation mode and cost budget.
At the initial stage of building of photovoltaic power plant, need with bluetooth module configuration in photovoltaic module to the installation position of rational planning photovoltaic board ensures that the distance of bluetooth MESH network deployment is enough to be transmitted to wisdom photovoltaic management platform. After physical construction is completed, each Bluetooth photovoltaic module needs to determine the binding state, and after the Bluetooth photovoltaic module is confirmed to be on the network, the Bluetooth photovoltaic module enters a low power consumption mode to wait for being awakened and reporting demand information at any time. Therefore, when a user needs to check the power generation condition and the temperature value of a certain photovoltaic panel, the user sends the required information to the Bluetooth gateway through the intelligent energy management platform, the Bluetooth gateway is used as a bridging carrier and can receive, pack and collect data packets and broadcast the data packets, the nearby photovoltaic module is used as a communication transmission node to judge whether the addresses are matched and the data packets are complete, and judges whether to forward the message according to the node type in the MESH networking protocol, if not, continuing to broadcast the acquired information issued by the system until the relay message reaches the target component, the target photovoltaic component judges that the DST addresses are the same, and analyzing and processing the data packet and immediately releasing the information such as power generation and the like of the photovoltaic module, subscribing and relaying the replied message by the nearby photovoltaic module until the replied message is transmitted to the Bluetooth gateway, and uploading the information to the intelligent energy management system by the gateway. Therefore, the user can timely and accurately check the photovoltaic module information wanted by the user in the system platform.
The intelligent energy management system established by the invention should have an analysis library with reference value, and all measured data are transmitted to the system for comparative analysis to obtain clear and comprehensive analysis results. And the system interface not only displays all measurement results, but also displays all power station faults, and gives fault reasons and solutions for preliminary analysis. When a component fault occurs, such as component voltage loss, the position of each module in the string can be accurately positioned, the system can distinguish shadow shielding or voltage loss at the same time of a fault list of all affected components with specific voltage loss, clear guidance and guidance service is provided for field technicians, and database tracking and recording are used for performing perfect fault management.
It should be noted that: when the photovoltaic module device and the photovoltaic module data communication system provided by the above embodiments execute the photovoltaic module data communication method, only the division of the above functional modules is taken as an example, and in practical application, the above functions may be distributed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the above described functions. In addition, the embodiments of the photovoltaic module data communication method, the photovoltaic module data communication system and the photovoltaic module device provided by the above embodiments belong to the same concept, and specific implementation processes thereof are described in detail in the embodiments of the methods and are not described herein again.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A data communication method of photovoltaic modules is applied to a system at least comprising a plurality of photovoltaic module devices, wherein the photovoltaic module devices are at least provided with Bluetooth modules, and the photovoltaic module devices are connected with each other through corresponding Bluetooth modules according to a MESH network, and the method comprises the following steps:
acquiring a data packet sent by an adjacent photovoltaic module device through the Bluetooth module;
judging whether the data packet is complete and whether the format of the data packet is correct;
judging whether to forward the data packet to other adjacent photovoltaic module devices or not according to the demand information;
and if so, forwarding the data packet to the next photovoltaic module device in the MESH network.
2. The method of claim 1, further comprising:
acquiring node information of the node; the node information comprises voltage, current, power and temperature operation state parameters, and the operation state parameters are used for indicating whether the photovoltaic module device operates normally or not;
judging whether the node information needs to be uploaded or not according to the demand information;
and if so, generating the data packet according to the node information, and sending the data packet to an adjacent node through the Bluetooth assembly.
3. The method of claim 2, wherein after the uploading of the data packet by the Bluetooth component, the method further comprises:
starting a Bluetooth assembly in real time, and receiving a confirmation message sent by the adjacent photovoltaic assembly device;
and the confirmation message is sent to the current photovoltaic module device by the Bluetooth gateway through at least one photovoltaic module device after receiving the data packet.
4. The method according to claim 3, wherein before determining whether the node information needs to be uploaded according to the demand information, the method further comprises:
and receiving a collection instruction sent by the adjacent photovoltaic module device, wherein the collection instruction is used for indicating the Bluetooth gateway to collect the node information of the current photovoltaic module device.
5. The method according to claim 3, wherein before determining whether the node information needs to be uploaded according to the demand information, the method further comprises:
the node information indicates that the current photovoltaic module device is abnormal in operation.
6. The method according to claim 4 or 5, wherein before the obtaining, by the Bluetooth module, the data packet sent by the adjacent photovoltaic module device, the method further comprises:
the photovoltaic module device is in a dormant state, and after the wake-up instruction is received, the photovoltaic module device operates.
7. A photovoltaic module data communication system is characterized in that the system comprises a plurality of photovoltaic module devices, a Bluetooth gateway, a server and a user terminal, the photovoltaic module devices are at least provided with Bluetooth modules and are connected with each other through corresponding Bluetooth modules according to an MESH network,
the Bluetooth gateway is used for receiving a data packet sent by the photovoltaic component device through the Bluetooth component and sending a collection instruction to the photovoltaic component device through the Bluetooth component;
the server is used for receiving the data packet, performing operation and maintenance operation and initiating a collection instruction;
the user terminal is used for initiating a collection instruction;
the photovoltaic module device includes:
the communication module is used for acquiring a data packet sent by the adjacent photovoltaic module device through the Bluetooth module;
the processing module is used for judging whether the data packet is complete and whether the format of the data packet is correct;
judging whether to forward the data packet to other adjacent photovoltaic module devices or not according to the demand information;
and if so, forwarding the data packet to the next photovoltaic module device in the MESH network.
8. The system of claim 7, wherein the server is configured to receive the data packet and perform an operation and maintenance operation, and initiate a collection instruction comprises;
receiving data packets sent by the photovoltaic module devices;
respectively monitoring the running states of the photovoltaic module devices according to the data packets;
if the running state indicates that the photovoltaic assembly device is abnormal, initiating operation and maintenance operation aiming at the photovoltaic assembly device, and sending a collection instruction to the photovoltaic assembly device; or
And receiving operation and maintenance operation or collection instructions sent by the user terminal, and sending collection instructions to the photovoltaic module device.
9. The system of claim 8, wherein the user terminal configured to initiate a collect instruction comprises:
respectively monitoring and displaying the running states of the photovoltaic module devices according to the data packets;
and acquiring operation and maintenance operation aiming at the photovoltaic assembly device initiated by a user, and sending a collection instruction to the photovoltaic assembly device through the server.
10. A photovoltaic module apparatus, wherein the apparatus is configured with at least a Bluetooth module, the apparatus further comprising:
the communication module is used for acquiring a data packet sent by the adjacent photovoltaic module device through the Bluetooth module;
the processing module is used for judging whether the data packet is complete and whether the format of the data packet is correct;
the processing module is further used for judging whether to forward the data packet to other adjacent photovoltaic module devices according to the demand information;
and if so, the processing module is further configured to forward the data packet to a next photovoltaic module device in the MESH network through the bluetooth module.
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