Information Management System and Method for Photovoltaic Power Generation Engineering Equipment Based on RFID Identification

Abstract

This invention discloses an information management system and method for photovoltaic power generation engineering equipment based on RFID identification, comprising: an equipment warehouse for storing photovoltaic equipment transported to the photovoltaic power generation site; an inbound registration section, an outbound identification section, and a transportation section, equipped with a transportation platform, unloading equipment, and a positioning module, for transferring materials between the equipment warehouse and the construction site via manual or automated control; an installation identification section, equipped with RFID identification devices to identify the RFID tags of photovoltaic equipment installed at the construction site; and a local server, built at the photovoltaic power generation site, recording information of all photovoltaic equipment entering the site and connecting to the site's BIM system data to form an engineering cloud system, through which data from the inbound registration, outbound identification, transportation, and installation identification sections are obtained. This invention achieves more efficient logistics and transportation management in a low-cost manner.

Description

Technical Field

[0001] This invention belongs to the field of photovoltaic power generation technology, specifically relating to an information management system and method for photovoltaic power generation engineering equipment based on RFID identification. Background Technology

[0002] Photovoltaic power generation is a technology that directly converts solar energy into electrical energy using the photovoltaic effect of semiconductors. Its core equipment includes photovoltaic panels, combiner boxes, inverters, and transformers. Photovoltaic panels generate direct current (DC) through the photoelectric effect, which is collected by the combiner box, converted into alternating current (AC) by the inverter, and then stepped up by the transformer before being fed into the power grid. In recent years, photovoltaic power generation technology has developed towards higher efficiency and intelligence. The application of new high-efficiency solar cells and intelligent inverters is becoming increasingly widespread. At the same time, the scale of photovoltaic power plants is also developing from decentralized to centralized and large-scale, creating an increasingly urgent need for remote monitoring and automated management.

[0003] The number and scale of photovoltaic (PV) power generation projects are constantly increasing. On-site material management for PV power generation projects involves all aspects of the project construction, specifically including material procurement, material storage, and material allocation. The required materials are diverse in specifications and types, in large quantities, and arrive in numerous batches. PV power generation projects are typically fast-paced, quick-return projects. Efficiently coordinating the arrival of materials and equipment, accelerating acceptance processes, ensuring material quality, and coordinating various departments are all issues that on-site material management needs to address. On-site material management for PV power generation projects has a crucial impact on the project's construction quality, schedule, cost, and profitability. Summary of the Invention

[0004] To address the problems existing in current technologies, this invention provides an information management system and method for photovoltaic power generation engineering equipment based on RFID identification. The aim is to collect material data using RFID technology, establish a basic material information database, propose a multi-mode information management system for materials, and develop an RFID-driven refined management platform for on-site materials in photovoltaic power generation projects.

[0005] The technical solution adopted in this invention is as follows:

[0006] In a first aspect, the present invention provides an RFID-based information management system for photovoltaic power generation engineering equipment, used for monitoring and managing the processes of equipment and materials used in photovoltaic power generation site construction, including warehousing, outbound transportation, and installation.

[0007] Equipment warehouse, used to store photovoltaic equipment transported from outside to the photovoltaic power generation site;

[0008] The warehouse registration section has a registration module and a material bin for storing several RFID tags. Manual or automated equipment registers the information of photovoltaic equipment entering the equipment warehouse and sets RFID tags with photovoltaic equipment information codes on the outside of the photovoltaic equipment.

[0009] The outbound identification section uses several RFID identification devices installed in the equipment warehouse to identify the RFID tags marking all outbound photovoltaic equipment.

[0010] The transportation section includes a transportation platform, unloading equipment, and positioning modules, which transfer materials between the equipment warehouse and the construction site through manual or automated control.

[0011] The installation and identification section includes RFID identification equipment to identify the RFID tags of photovoltaic equipment installed in the construction site; and

[0012] A local server is set up at the photovoltaic power generation site to record information on all photovoltaic equipment entering the site and connects to the BIM system of the photovoltaic power generation site to form an engineering cloud system. The engineering cloud system obtains data on the entry registration, exit identification, transportation, and installation identification.

[0013] In conjunction with the first aspect, the present invention provides a first embodiment of the first aspect, wherein in the warehouse registration section, the registration module is a terminal device that can erase and rewrite RFID tag data, and the photovoltaic equipment information is manually recorded and a relationship table between the identification information of the RFID tag and the equipment information is formed in the engineering cloud system.

[0014] In conjunction with the first aspect, the present invention provides a second embodiment of the first aspect, wherein the registration module in the warehouse registration section includes an RFID tag data module and a visual recognition device, and the visual recognition device performs image recognition on the photovoltaic equipment transported from outside to the photovoltaic power generation site to obtain equipment information.

[0015] In conjunction with the first aspect, the present invention provides a third embodiment of the first aspect, wherein the equipment warehouse is provided with material storage racks, loading and unloading areas, and RFID identification equipment set in the loading and unloading areas, and the RFID identification equipment in the loading and unloading areas obtains information on the incoming transportation platform and the RFID tag information of all photovoltaic equipment loaded on the transportation platform.

[0016] In conjunction with the first aspect, the present invention provides a fourth embodiment of the first aspect, wherein the equipment warehouse is provided with material storage racks, loading and unloading areas, and a gate-type RFID identification device set at the exit of the equipment warehouse. The gate-type RFID identification device includes a detachable bracket, and RFID antennas are installed on both sides of the detachable bracket. The device is triggered by a ground induction coil provided on the ground where the detachable bracket is located to scan the transport platform passing through the gate-type RFID identification device to obtain the RFID tag information of all photovoltaic equipment loaded.

[0017] In conjunction with the second embodiment of the first aspect, the present invention provides a fifth embodiment of the first aspect, wherein the transport platform is equipped with a plurality of RFID identification devices, which, together with a weight sensor set at the bottom of the transport platform, trigger the identification of RFID tags of photovoltaic equipment loaded on the transport platform and upload them to the engineering cloud system.

[0018] In conjunction with the fifth embodiment of the first aspect, the present invention provides a sixth embodiment of the first aspect, wherein the installation and identification part is a drone identification device, the drone identification device includes several drone platforms that communicate with the engineering cloud system and RFID identification devices installed on each drone platform, the drone platform carrying the RFID identification devices identifies RFID tags in the coverage area and uploads the data to the engineering cloud system.

[0019] Secondly, the present invention also provides a management method, which uses the RFID-based photovoltaic power generation engineering equipment information management system described above to manage the information of photovoltaic equipment. The specific steps are as follows:

[0020] Step 100. First, transfer the photovoltaic equipment transported to the photovoltaic power generation site to the equipment warehouse. When entering the warehouse, manually check the model, number, and batch of the photovoltaic equipment and record it as equipment information through the registration module. At the same time, identify and read any RFID tag in the material bucket and form a corresponding relationship with the photovoltaic equipment information and upload it to the engineering cloud system to complete the entry into the warehouse.

[0021] Step 200. Simultaneously, the engineering cloud system arranges for the transportation platform to enter the equipment warehouse to load photovoltaic equipment according to the engineering plan. Then, it identifies all photovoltaic equipment loaded on the same transportation platform and assigns it to the corresponding transportation platform number through several RFID identification devices in the equipment warehouse. The engineering cloud system then sends transportation task information to the terminal device corresponding to the transportation platform number. The transportation platform transports the loaded photovoltaic equipment to the corresponding installation site in sequence according to the task information.

[0022] Step 300. After the photovoltaic equipment is transported to the installation site, each installed photovoltaic device is identified by a handheld RFID identification device. The tag containing the location information and installation location number is transmitted together with the RFID tag information of the photovoltaic device to the engineering cloud system for registration and recording. The engineering cloud system stores all the data of the corresponding photovoltaic device and then verifies the corresponding RFID tag information.

[0023] Thirdly, the present invention also provides a management method, which uses the RFID-based photovoltaic power generation engineering equipment information management system described above to manage the information of photovoltaic equipment. The specific steps are as follows:

[0024] Step 100. First, transfer the photovoltaic equipment transported to the photovoltaic power generation site to the equipment warehouse. When entering the warehouse, use visual recognition equipment to check the model, number and batch of the photovoltaic equipment and record it as equipment information through the registration module. At the same time, identify and read any RFID tag in the material bucket and form a corresponding relationship with the photovoltaic equipment information and upload it to the engineering cloud system to complete the entry into the warehouse.

[0025] Step 200. Simultaneously, the engineering cloud system arranges for the transportation platform to enter the equipment warehouse to load photovoltaic equipment according to the engineering plan. Then, it identifies all the loaded photovoltaic equipment and assigns them to the corresponding transportation platform number through several RFID identification devices in the transportation platform. The engineering cloud system sends transportation task information to the terminal device corresponding to the transportation platform number. The transportation platform then transports the loaded photovoltaic equipment to the corresponding installation site in sequence according to the task information.

[0026] Step 300. After the photovoltaic equipment is transported to the installation site, the drone platform regularly inspects the installation locations of all photovoltaic equipment within its coverage area. The installation status of the photovoltaic equipment is determined through image recognition, and the photovoltaic equipment that has been confirmed to be installed or is being installed is identified by RFID. The drone platform approaches each photovoltaic equipment to identify it and transmits the tag containing the location information and installation location number, along with the RFID tag information of the photovoltaic equipment, to the engineering cloud system for registration and recording. The engineering cloud system stores all the data of the corresponding photovoltaic equipment and then verifies the corresponding RFID tag information.

[0027] The beneficial effects of this invention are as follows:

[0028] (1) This invention realizes the digital tracking of photovoltaic equipment from warehousing, outbound, transportation to installation. Through the linkage of RFID tags and local cloud system, the warehousing, outbound, transportation and installation status of equipment are recorded in real time, ensuring that every operation is traceable and effectively avoiding information gaps and recording deviations in material management.

[0029] (2) The deep integration of the present invention with the BIM system enables the cloud system to obtain construction plans and progress data in real time, and automatically adjust the equipment allocation strategy according to the installation progress in each area, so as to ensure that the supply of materials and the construction rhythm are accurately matched, avoid inventory backlog or shortage, and maintain the balance and efficiency of material flow.

[0030] (3) The application of mobile terminals and drones and other equipment in this invention provides a convenient way for on-site installers to operate. Installation confirmation can be completed by scanning RFID tags, and the system updates progress information synchronously, reducing the tedious process of manual recording and improving the flexibility and response speed of on-site management.

[0031] (4) The present invention uses RFID identification devices for outbound identification at the outbound port, loading and unloading area or transportation platform to provide multiple solutions. It can identify the signal coverage during the process of the transportation platform entering the equipment warehouse to load photovoltaic equipment and determine the information of all photovoltaic equipment carried by each transportation platform in a single trip. The engineering cloud platform can formulate a transportation plan for each transportation platform at the time of outbound based on the material conditions at the installation site and the photovoltaic equipment carried by the transportation platform. This avoids formulating a transportation plan when the transportation platform enters the warehouse, which would require loading the photovoltaic equipment with the corresponding number in sequence during the loading and unloading process, thereby improving efficiency. In other words, each photovoltaic equipment is numbered to determine all process information, but it avoids numbering each equipment and planning its transportation and installation process in the early stage. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the actual transfer of photovoltaic equipment in the entire information management system in this embodiment of the invention. Detailed Implementation

[0033] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0036] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0037] In the description of this application, it should be noted that the use of terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" to indicate orientation or positional relationships is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the product is in use. These terms are used solely for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the use of terms such as "first" and "second" in the description of this application is only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0038] Furthermore, the use of terms such as "horizontal" and "vertical" in the description of this application does not imply that the component is required to be absolutely horizontal or suspended, but rather that it may be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but rather that it may be slightly tilted.

[0039] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0040] This invention provides an RFID-based information management system for photovoltaic power generation engineering equipment. It should be noted that the system in this embodiment comprises hardware and software systems for overall material supply management of a specific outdoor photovoltaic power station. This outdoor photovoltaic power station includes a photovoltaic power generation site and a material storage area. Materials are transferred between the photovoltaic power generation site and the material storage area using transportation vehicles. Several construction teams simultaneously perform partial construction and installation within the photovoltaic power generation site. Each construction team is located in a different area and is distributed throughout the photovoltaic power generation site according to the construction plan. A temporary material receiving point is set up at each construction team's location. Since photovoltaic power stations are often built in deserts or locations difficult for personnel to access, the roads and facilities throughout the site are temporary structures erected for construction. Therefore, the transportation vehicles are mostly small flatbed trucks with some off-road capabilities. After unloading at the construction team's work location, the remaining materials are usually transported manually to the corresponding installation location for assembly.

[0041] It should also be noted that the construction design and data acquisition of the entire photovoltaic power station are based on the BIM system provided by the project owner. The management system in this embodiment can access the BIM system to obtain design data and construction information about the entire photovoltaic power station, thereby managing materials more efficiently.

[0042] Specifically, the management system in this embodiment is defined by a modular association approach, including the following parts:

[0043] Equipment warehouse, used to store photovoltaic equipment transported from outside to the photovoltaic power generation site;

[0044] The warehouse registration section has a registration module and a material bin for storing several RFID tags. Manual or automated equipment registers the information of photovoltaic equipment entering the equipment warehouse and sets RFID tags with photovoltaic equipment information codes on the outside of the photovoltaic equipment.

[0045] The outbound identification section uses several RFID identification devices installed in the equipment warehouse to identify the RFID tags marking all outbound photovoltaic equipment.

[0046] The transportation section includes a transportation platform, unloading equipment, and positioning modules, which transfer materials between the equipment warehouse and the construction site through manual or automated control.

[0047] The installation and identification component includes RFID identification equipment to identify the RFID tags of photovoltaic equipment installed in the construction site; and a local server built on the photovoltaic power generation site to record information of all photovoltaic equipment entering the photovoltaic power generation site, and to connect to the BIM system data of the photovoltaic power generation site to form an engineering cloud system, through which data from the inbound registration, outbound identification, transportation and installation identification components are obtained.

[0048] This embodiment also provides a method for registering and managing photovoltaic equipment using this management system, as detailed below:

[0049] First, the photovoltaic equipment transported to the photovoltaic power generation site is transferred to the equipment warehouse. Upon entry into the warehouse, the model, serial number, and batch number of the photovoltaic equipment are manually checked and recorded as equipment information through the registration module. At the same time, any RFID tag in the material bin is identified and read, and a corresponding relationship is formed with the photovoltaic equipment information and uploaded to the engineering cloud system to complete the entry into the warehouse.

[0050] During the process, an outbound process will be arranged. The engineering cloud system will arrange for the transportation platform to enter the equipment warehouse to load photovoltaic equipment according to the engineering plan. Then, several RFID identification devices in the equipment warehouse will identify all photovoltaic equipment loaded on the same transportation platform and assign it to the corresponding transportation platform number. The engineering cloud system will then send transportation task information to the terminal device corresponding to the transportation platform number. The transportation platform will then transport the loaded photovoltaic equipment to the corresponding installation site in sequence according to the task information.

[0051] After the photovoltaic equipment is transported to the installation site, each installed photovoltaic device is identified by a handheld RFID identification device. The tag containing the location information and installation location number is transmitted together with the RFID tag information of the photovoltaic device to the engineering cloud system for registration and recording. The engineering cloud system stores all the data of the corresponding photovoltaic device and then verifies the corresponding RFID tag information.

[0052] Furthermore, refer to Figure 1 The equipment warehouse adopts a temporary prefabricated frame structure, with a lightweight steel structure as the overall framework. Fireproof and heat-insulating panels are used for the walls and roof, which facilitates quick assembly and disassembly and is far less expensive than traditional brick and concrete warehouses.

[0053] The layout of the entire equipment warehouse is designed around the demand for high turnover. The internal space is compact and clearly divided. The storage area is set up on the side closest to the external transport vehicle parking point. The ground is simply hardened and covered with anti-slip steel plates to prevent the ground from settling when the equipment is moved.

[0054] The receiving area is immediately adjacent to the temporary storage area, which is divided into several long strips according to the type of equipment. Several material storage racks are set up in the temporary storage area. Solar panels are neatly stacked on low metal supports. The height of the supports is moderate, which makes it easy for people or small forklifts to quickly pick up and put down the equipment. Small equipment such as inverters and combiner boxes are placed on multi-layer grid racks. Sufficiently wide passages are reserved between the grid racks for transportation vehicles to pass through.

[0055] The temporary storage area connects to the outbound area, which is located near the equipment warehouse entrance. Guide lines are marked on the ground to indicate the routes for transport vehicles, ensuring an orderly and efficient loading process. Since the equipment warehouse's maximum storage capacity is less than 5% of the total equipment required for the entire construction project, and only needs to meet at least two days' worth of construction materials, a complex storage structure is unnecessary. The turnaround time for all equipment from entry to exit is strictly controlled to prevent prolonged storage. The shelves and supports in the temporary storage area are foldable, allowing for quick disassembly and reassembly when the construction schedule changes and the storage area size needs adjustment, further reducing setup and maintenance costs.

[0056] Furthermore, the operation process of the warehousing registration section in this embodiment can be flexibly switched according to different scenarios. When externally transported equipment arrives at the equipment warehouse warehousing area, if manual registration is used, the warehouse staff will first check the printed information on the outer packaging of the equipment, including the model, batch, production number, etc. Then, they will open the warehousing registration interface of the engineering cloud system on their mobile terminal, manually enter this information, and then randomly take out an RFID tag from the material bucket next to them. They will use the terminal's scanning function to read the unique identifier of the tag and bind the identifier with the equipment information just entered in the system. After binding, they will use a special portable adhesive tool to stick the tag on a flat position on the outer surface of the equipment. The solar panel tag is usually stuck on the non-power generation area of ​​the back panel, while the inverter tag is stuck on the blank space on the side, ensuring that the tag is stuck firmly and does not affect the subsequent installation of the equipment.

[0057] In another implementation, a handheld terminal is used to scan the code. The outer packaging of the photovoltaic equipment transported to the photovoltaic equipment warehouse will be pre-printed with barcodes or QR codes. Warehouse staff only need to use the scanning function of the handheld terminal to scan the code information. The terminal will automatically identify and extract the photovoltaic equipment information, eliminating the need for manual input. Afterwards, the RFID tag is taken out to complete the binding and affixing. The whole process is faster than manual input and reduces information entry errors.

[0058] Another solution employs fully automated photovoltaic (PV) equipment for automatic data collection. This involves using image recognition for the PV equipment's movement and storage. Externally transported PV equipment enters the storage area via a conveyor belt. Multiple high-definition cameras are installed on both sides of the conveyor belt, capturing images of the PV equipment's packaging from different angles. The system automatically extracts text and label information from the packaging using image recognition technology. Simultaneously, a robotic arm at the end of the conveyor belt grabs RFID tags from the storage bins. After the scanning device on the robotic arm reads the tag, the system automatically binds it to the PV equipment information. The robotic arm then precisely affixes the tag to a preset position on the PV equipment. The PV equipment then enters the temporary storage area driven by the conveyor belt. The entire process requires no manual intervention and is suitable for continuous storage of large quantities of similar PV equipment.

[0059] Furthermore, in this embodiment, the implementation method for the outbound part is designed based on the temporary nature and high turnover requirements of the photovoltaic equipment warehouse. When the transport vehicle enters the photovoltaic equipment warehouse to load photovoltaic equipment, RFID identification of the photovoltaic equipment is used in the loading and unloading area. Multiple identification modules are installed around the loading and unloading area. These modules are wirelessly connected to the engineering cloud system. After the transport vehicle completes the loading of photovoltaic equipment in the loading and unloading area, the identification module will automatically scan the RFID tags of all photovoltaic equipment on the transport vehicle and upload the tag information and the transport vehicle number to the system. The system then records the outbound status of these photovoltaic equipment to ensure that each photovoltaic equipment is accurately tracked.

[0060] In another implementation, a gate-type RFID identification system is used to identify photovoltaic equipment at the exit. The gate structure is composed of detachable aluminum alloy brackets, with identification antennas installed on both sides of the brackets and sensors embedded in the ground. When a transport vehicle loaded with photovoltaic equipment passes through the gate structure, the sensors trigger the identification antennas to scan all the photovoltaic equipment on the vehicle. Regardless of how the photovoltaic equipment is stacked, the antennas can cover the tags in every corner. After scanning, the information is uploaded to the system in real time, and the transport vehicle can leave the photovoltaic equipment warehouse without stopping, greatly improving the exit efficiency. This gate structure can be quickly disassembled after construction and is easy to transfer to other sites for reuse.

[0061] In another implementation, the photovoltaic equipment is identified using the RFID tags on the transport vehicle itself. The transport vehicle is designed with an integrated identification module. When the photovoltaic equipment is loaded onto the transport vehicle, the identification module automatically starts scanning. At the same time, the sensors on the bottom of the transport vehicle detect the loaded weight. When the weight is stable and no longer changing, the system confirms that the loading is complete. All the scanned RFID tag information is associated with the transport vehicle number and uploaded to the engineering cloud system to complete the outbound registration. This method frees the transport vehicle from dependence on the fixed identification device in the photovoltaic equipment warehouse. Even if the temporary identification device in the photovoltaic equipment warehouse fails, the outbound process can still be ensured to proceed normally.

[0062] Furthermore, regarding the transportation component, its design aims to ensure rapid response and accurate delivery. Transportation vehicles are selected based on the size and terrain of the construction site; smaller sites primarily utilize electric forklifts and automated guided vehicles (AGVs), while larger sites employ smaller trucks. All transportation vehicles are equipped with positioning devices, enabling them to transmit real-time location information to the engineering cloud system. This embodiment corresponds to... Figure 1 The example used is a forklift, but it is not limited to forklifts. Forklifts are mostly used in photovoltaic equipment warehouses for manual loading and unloading of photovoltaic equipment.

[0063] Once the photovoltaic equipment is shipped out, the system will plan the optimal route for the transportation vehicle based on the construction progress and the needs of each installation area. The route will avoid areas under construction and sections with piled-up obstacles to ensure a smooth transportation process.

[0064] The loading and unloading of photovoltaic equipment is done in conjunction with transportation vehicles. Small photovoltaic equipment mostly relies on manual hydraulic forklifts, while heavier photovoltaic equipment is equipped with small cranes. After the transportation vehicle arrives at the installation area, the loading and unloading photovoltaic equipment will be unloaded smoothly and placed in a temporary area near the installation point for easy access by the installation personnel. After the transportation vehicle has finished unloading, it will send a completion signal to the system through the positioning device. The system will then update the status of the photovoltaic equipment to indicate that it has arrived at the installation area and assign the next transportation task to the transportation vehicle according to the real-time progress, ensuring seamless connection of the transportation process and not delaying the installation progress.

[0065] Furthermore, the installation process in this embodiment emphasizes convenience and accuracy. When the RFID identification device is manually held by the installer, after fixing the device in the installation position, the installer will use the handheld device to scan the RFID tag on the device and the preset mark of the installation point. The handheld device will automatically record the scanning time and location information and upload this data to the engineering cloud system in real time. After receiving the information, the system will mark the device as installed, cancel the corresponding RFID tag, and generate a tag recycling reminder to facilitate subsequent recycling and reuse by staff.

[0066] If unmanned equipment identification is used, especially with a temporarily set up drone platform, this method is suitable for large installation areas. The drone flies according to a preset cycle and cruise route. The camera on the drone can identify the photovoltaic equipment that has been installed or fixed in the installation position based on the image recognition algorithm. Then, the RFID identification module on the drone can scan the tags of the installed equipment below in batches. At the same time, the drone confirms the installation position of the equipment through its own positioning system. The scanned information is transmitted back to the engineering cloud system in real time. The system compares the information to confirm whether the equipment is installed in the designated area. This method reduces the workload of manual inspection and is especially suitable for installation sites with complex terrain or large areas.

[0067] In another implementation, a fixed identification device is installed at the installation location. This device is a small identifier that can move along a fixed track or pull rope. The identifier connects to the system wirelessly. When the device is installed in place, the identifier automatically reads the RFID tag on the device to confirm that the device has been placed correctly. Then, it uploads the information to the system to complete the installation confirmation. This method does not require manual operation and is suitable for devices with a high degree of standardization and fixed installation locations, ensuring the accuracy and timeliness of identification.

[0068] In this embodiment, in order to further reduce costs, a recyclable RFID tag structure is adopted to achieve the effect of recycling and reuse.

[0069] One implementation method involves encapsulating the fixed chip portion of the RFID tag in rigid plastic, integrating radio frequency circuitry and an antenna. The entire chip is thin and flat, with rounded edges to prevent scratching the device. The adhesive portion consists of a paper substrate with strong adhesive. One side of the substrate is coated with pressure-sensitive adhesive for bonding to the photovoltaic device surface, while the other side uses multiple tiny plastic bumps to engage with grooves in the chip portion. These bumps are relatively brittle, forming a stable connection after engagement, ensuring the tag will not detach during transportation and installation.

[0070] When the photovoltaic equipment is installed and the chips need to be recycled, the staff needs to pinch the edge of the chip with their fingers and tear it slightly. The plastic protrusions on the adhesive part will break from the chip groove. At this time, the chip part separates from the adhesive part. The substrate and residual adhesive of the adhesive part will remain on the surface of the equipment, while the chip part remains intact due to the plastic encapsulation. After recycling, it is sent to the equipment warehouse. The staff will re-attach the new adhesive part to the groove of the chip part, and it can be reused. This structure not only ensures the firmness during use, but also achieves the reuse of the chip through destructive separation. The adhesive part is inexpensive and can be discarded after the equipment is installed.

[0071] One implementation method is to use RFID tags in the form of Velcro. The hook side of the Velcro is cut to a size similar to that of the chip. The back is coated with special adhesive suitable for the surface of photovoltaic equipment. When pasting, first clean the dust and oil on the surface of the equipment, then flatten the hook side of the Velcro onto the non-working area of ​​the equipment and press it for a moment to ensure it sticks firmly.

[0072] The back of the RFID chip is secured with a layer of textured hook and loop fastener. The soft, high-density texture provides sufficient adhesion when in contact with the hook and loop fastener, preventing it from loosening even during transport. When chip recycling is needed, workers simply pinch a corner of the chip and gently pull upwards; the textured hook and loop fastener will separate from the hook and loop fastener on the device. This separation process does not damage the device surface, and the hook and loop fastener can remain on the device without affecting subsequent installation and use. The recycled chip, once returned to the equipment storage, requires no further processing and can be directly used with new hook and loop fasteners. The entire recycling process is simple and quick, suitable for scenarios requiring frequent tag handling. Furthermore, the fastener can be reused dozens of times, further reducing the cost per use.

[0073] One implementation method involves using a plastic cable tie. The chip is injection-molded onto one end of the cable tie, which is made of a resilient polyethylene material with a smooth surface and some elasticity. In use, the operator wraps the cable tie around the photovoltaic device according to its dimensions, passes the free end through the clip hole in the chip, and tightens the cable tie until the chip is flush against the device surface. The clip automatically locks the cable tie to prevent loosening.

[0074] The cable ties feature a small unlocking tab at the buckle. During retrieval, workers press the unlocking tab with their fingernail or a small tool while simultaneously pulling the free end of the cable tie in the opposite direction. The buckle will release, allowing the cable tie to be completely removed from the equipment. The chip portion remains integrated with the cable tie and will not be damaged. After recycling, the cable tie tags can be easily cleaned and reused for bundling other equipment. For cable ties that have lost their durability due to repeated use, only the cable tie body needs to be replaced; the chip portion can still be removed and re-molded onto the new cable tie. This design is particularly suitable for equipment with ring-shaped structures such as cables and brackets, providing a secure fixation and easy retrieval, effectively adapting to the rough operating environment of construction sites.

[0075] Furthermore, the engineering cloud system used in this embodiment can access the BIM system to obtain the installation plan and construction data of the entire photovoltaic construction site. The engineering cloud system in this embodiment can not only collect information on all photovoltaic equipment entering the site, but also realize the tracking and archiving of logistics data in the installation site through RFID tags. Based on the tracking of logistics data throughout the entire process, it can also obtain information on all equipment finally installed in the entire site and their installation locations, and retain this data and return it to the BIM system to form the initial reference data for later operation and maintenance management.

[0076] However, this embodiment differs from the prior art in that it does not require manual or system pre-setting of the destination and installation location of each device before it leaves the warehouse. This approach would require the devices to be placed and unloaded in sequence in the equipment warehouse before they are transported out, resulting in low efficiency throughout the process.

[0077] The engineering cloud system in this embodiment, based on the principles of local deployment, lightweight interaction, and BIM system linkage, is structured into three layers: data layer, functional layer, and interface layer. Its core functionality meets the requirements for equipment information storage, RFID dynamic tracking, and progress coordination.

[0078] The data layer, which consists of local industrial servers, stores three main categories of core data.

[0079] Basic equipment information: model, specifications, batch number, RFID number, manufacturer;

[0080] Process tracking data: inbound time, outbound time, vehicle ID, and real-time location-linked RFID scan records;

[0081] Construction progress data: The BIM system synchronizes the zoned construction plan, such as the A zone requiring 300 components, of which 200 have been completed so far, along with the installation location coordinates.

[0082] The functional layer includes an equipment management module, a progress linkage module, a route planning module, and a mobile terminal interaction module. It performs RFID tag binding with equipment information and tag status updates (i.e., in stock / in transit / installed / tag recovered); then it parses the weekly / daily construction plans from the BIM system to calculate material shortages in each area; it also needs to generate the optimal transportation route based on vehicle load, installation location, and real-time road conditions; finally, it provides terminal interaction, offering data query and installation confirmation interfaces for mobile terminals.

[0083] The interface layer includes BIM system interfaces, RFID identification module interfaces, and mobile terminal interfaces.

[0084] Throughout the site, a hybrid communication solution combining LoRa and BeiDou short message service is prioritized to balance cost, coverage, and real-time performance. Wi-Fi is deployed in specific areas such as temporary warehouses and the construction command center for synchronizing large files between mobile devices and servers.

[0085] Furthermore, the engineering cloud system assigns transportation routes and installation locations for each piece of equipment to transportation vehicles based on real-time construction progress, including the number of equipment already installed in each region, remaining demand, and the type / quantity of equipment leaving the warehouse.

[0086] Regarding the allocation algorithm, for a batch of outbound equipment of type t and batch b, the weight W allocated to region j is... j The calculation formula is:

[0087] Normalization coefficient Z: Ensures that the sum of the weights for all regions is 1, i.e. This is used to standardize the results into a distribution ratio.

[0088] Weighting coefficient Adjustments will be made dynamically based on the project phase, such as the expedited construction phase. Device compatibility priority phase .

[0089] Example values: (Construction priority) (Equipment matching) (Transportation and construction period) (Regional inventory gap).

[0090] Among them, the regional importance coefficient The key node values ​​based on the BIM system are: 1.2 for core areas, 1.0 for general areas, and 0.8 for non-critical areas.

[0091] Schedule lag factor It is equal to the ratio of the planned completion amount to the actual completion amount; the more severe the lag, the higher the percentage difference. The larger;

[0092] Type matching coefficient The degree of matching between the required equipment type in region j and the outbound equipment type t is calculated as follows: 1 for a perfect match, 0.8 for a compatible match, and 0 for a mismatch.

[0093] Batch compatibility coefficient: the compatibility between the installed equipment batch and the outbound equipment batch b in region j. The coefficient is 1 for the same batch, 0.9 for adjacent batches, and 0.7 for cross-batch.

[0094] Unit transportation cost The lower the cost, The smaller the value, the lower the time sensitivity coefficient. For planned dates less than three days from the current date, the difference is taken as 1; for differences of 4-7 days, the difference is taken as 1.2; and for differences greater than 7 days, the difference is taken as 1.

[0095] This invention is not limited to the optional embodiments described above, and anyone can derive other various forms of products based on the inspiration of this invention. The specific embodiments described above should not be construed as limiting the scope of protection of this invention; the scope of protection of this invention should be determined by the claims, and the specification can be used to interpret the claims.

Claims

1. An RFID-based information management system for photovoltaic power generation engineering equipment, used for short-term, quick-implementation photovoltaic power generation projects, to achieve efficient coordination of material and equipment delivery, characterized by: include: Equipment warehouse, used to store photovoltaic equipment transported from outside to the photovoltaic power generation site; The warehouse registration section has a registration module and a material bin for storing several RFID tags. Manual or automated equipment registers the information of photovoltaic equipment entering the equipment warehouse and sets RFID tags with photovoltaic equipment information codes on the outside of the photovoltaic equipment. The outbound identification section uses several RFID identification devices installed in the equipment warehouse to identify the RFID tags marking all outbound photovoltaic equipment. The transportation section includes a transportation platform, unloading equipment, and positioning modules, which transfer materials between the equipment warehouse and the construction site through manual or automated control. The installation and identification section includes RFID identification equipment to identify the RFID tags of photovoltaic equipment installed in the construction site; and a local server built on the photovoltaic power generation site to record information of all photovoltaic equipment entering the photovoltaic power generation site, and connect to the BIM system data of the photovoltaic power generation site to form an engineering cloud system, and obtain data from the inbound registration section, outbound identification section, transportation section and installation identification section through the engineering cloud system. The equipment warehouse is laid out to meet high turnover requirements. An entry area is set up on the side near the external transport vehicle parking point. Next to the entry area is a temporary storage area. The temporary storage area is divided into several long strip areas according to the type of equipment. Several material storage racks are set up in the temporary storage area. Solar panels are neatly stacked on low metal supports. Inverters and combiner boxes are placed on multi-layer grid racks. Aisles are reserved between the grid racks for transport vehicles to pass through. The temporary storage area connects to the outbound area, which is located near the entrance to the equipment warehouse. Guide lines are marked on the ground to indicate the routes for transport vehicles. The maximum storage capacity of the equipment warehouse is less than 5% of the total equipment required for the entire construction project, and it meets the material needs for at least two days. In the warehouse registration section, the registration module includes an RFID tag data erasing module and a visual recognition device. The visual recognition device is used to perform image recognition on the photovoltaic equipment transported from outside to the photovoltaic power generation site to obtain equipment information. The transportation platform is equipped with several RFID identification devices, which, together with the weight sensor located at the bottom of the transportation platform, trigger the identification of the RFID tags of the photovoltaic equipment loaded on the transportation platform and upload the data to the engineering cloud system; The engineering cloud system assigns transportation routes and installation locations for each piece of equipment to transportation vehicles based on real-time construction progress, including the number of equipment already installed in each area, remaining demand, and the type / quantity of equipment leaving the warehouse. Regarding the allocation algorithm, for a batch of outbound equipment of type t and batch b, the weight allocated to region j is... W j The calculation formula is: ； Normalization coefficient Z: Ensures that the sum of the weights for all regions is 1, i.e. This is used to standardize the results into a distribution ratio; The weighting coefficient is referenced α+β+γ+δ=1 Adjustments will be made dynamically based on the project phase. Among them, the regional importance coefficient I j The key node values ​​based on the BIM system are: 1.2 for core areas, 1.0 for general areas, and 0.8 for non-critical areas. Schedule lag factor S j It equals the ratio of the planned completion amount to the actual completion amount; the greater the lag, the higher the percentage of the actual completion amount. S j The larger; Type matching coefficient M j,t The matching degree between the equipment type required in region j and the equipment type t in the outbound warehouse is calculated as follows: 1 for a perfect match, 0.8 for a compatible match, and 0 for a mismatch. Batch compatibility K j,b The compatibility of the installed equipment batch in region j with the outgoing equipment batch b is calculated as follows: 1 for the same batch, 0.9 for adjacent batches, and 0.7 for cross-batch. Unit transportation cost C j The lower the cost, C j The smaller the value, the lower the time sensitivity coefficient. T j For planned dates less than three days from the current date, the difference is taken as 1; for differences of 4-7 days, the difference is taken as 1.2; and for differences greater than 7 days, the difference is taken as 1.

2. The photovoltaic power generation engineering equipment information management system based on RFID identification according to claim 1, characterized in that: In the warehouse registration section, the registration module is a terminal device that can erase and rewrite RFID tag data. It manually records photovoltaic equipment information and forms a relationship table between RFID tag identification information and equipment information in the engineering cloud system.

3. The photovoltaic power generation engineering equipment information management system based on RFID identification according to claim 1, characterized in that: The equipment warehouse is equipped with material storage racks, loading and unloading areas, and RFID identification equipment set in the loading and unloading areas. The RFID identification equipment in the loading and unloading areas obtains information about the incoming transportation platform and the RFID tag information of all photovoltaic equipment loaded on the transportation platform.

4. The photovoltaic power generation engineering equipment information management system based on RFID identification according to claim 1, characterized in that: The equipment warehouse is equipped with material storage racks, loading and unloading areas, and a gate-type RFID identification device set at the warehouse exit. The gate-type RFID identification device includes a detachable bracket with RFID antennas installed on both sides. It is triggered by a ground induction coil on the ground where the detachable bracket is located to scan the transport platform passing through the gate-type RFID identification device and obtain the RFID tag information of all photovoltaic equipment loaded.

5. The photovoltaic power generation engineering equipment information management system based on RFID identification according to claim 1, characterized in that: The installation and identification part is a drone identification device, which includes several drone platforms that communicate with the engineering cloud system and RFID identification devices installed on each drone platform. The drone platform carries the RFID identification devices to identify RFID tags in the coverage area and upload the data to the engineering cloud system.

6. A management method, characterized in that: The information management system for photovoltaic power generation engineering equipment based on RFID identification, as described in claim 1 or 2, is used for photovoltaic equipment information management. The specific steps are as follows: Step 100. First, transfer the photovoltaic equipment transported to the photovoltaic power generation site to the equipment warehouse. When entering the warehouse, manually check the model, number, and batch of the photovoltaic equipment and record it as equipment information through the registration module. At the same time, identify and read any RFID tag in the material bucket and form a corresponding relationship with the photovoltaic equipment information and upload it to the engineering cloud system to complete the entry into the warehouse. Step 200. Simultaneously, the engineering cloud system arranges for the transportation platform to enter the equipment warehouse to load photovoltaic equipment according to the engineering plan. Then, it identifies all photovoltaic equipment loaded on the same transportation platform and assigns it to the corresponding transportation platform number through several RFID identification devices in the equipment warehouse. The engineering cloud system then sends transportation task information to the terminal device corresponding to the transportation platform number. The transportation platform transports the loaded photovoltaic equipment to the corresponding installation site in sequence according to the task information. Step 300. After the photovoltaic equipment is transported to the installation site, each installed photovoltaic device is identified by a handheld RFID identification device. The tag containing the location information and installation location number is transmitted together with the RFID tag information of the photovoltaic device to the engineering cloud system for registration and recording. The engineering cloud system stores all the data of the corresponding photovoltaic device and then verifies the corresponding RFID tag information.

7. A management method, characterized in that: The information management system for photovoltaic power generation engineering equipment based on RFID identification, as described in claim 5, is used for photovoltaic equipment information management. The specific steps are as follows: Step 100. First, transfer the photovoltaic equipment transported to the photovoltaic power generation site to the equipment warehouse. When entering the warehouse, use visual recognition equipment to check the model, number and batch of the photovoltaic equipment and record it as equipment information through the registration module. At the same time, identify and read any RFID tag in the material bucket and form a corresponding relationship with the photovoltaic equipment information and upload it to the engineering cloud system to complete the entry into the warehouse. Step 200. Simultaneously, the engineering cloud system arranges for the transportation platform to enter the equipment warehouse to load photovoltaic equipment according to the engineering plan. Then, it identifies all the loaded photovoltaic equipment and assigns them to the corresponding transportation platform number through several RFID identification devices in the transportation platform. The engineering cloud system sends transportation task information to the terminal device corresponding to the transportation platform number. The transportation platform then transports the loaded photovoltaic equipment to the corresponding installation site in sequence according to the task information. Step 300. After the photovoltaic equipment is transported to the installation site, the drone platform regularly inspects the installation locations of all photovoltaic equipment within its coverage area. The installation status of the photovoltaic equipment is determined through image recognition, and the photovoltaic equipment that has been confirmed to be installed or is being installed is identified by RFID. The drone platform approaches each photovoltaic equipment to identify it and transmits the tag containing the location information and installation location number, along with the RFID tag information of the photovoltaic equipment, to the engineering cloud system for registration and recording. The engineering cloud system stores all the data of the corresponding photovoltaic equipment and then verifies the corresponding RFID tag information.

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