Applications of RFID technology in smart grid

In recent years, the state has listed the Internet of Things and smart grid network as a national key project. The introduction of the Internet of Things technology in the smart grid can not only effectively integrate resources and infrastructure in all aspects of power production, transmission, distribution and consumption, but also improve The informatization, intelligence and integration of the power system have improved the utilization of power infrastructure to a large extent.

The Internet of Things includes three layers: the perception layer, the network layer, and the application layer. The smart grid designed based on the composition of the Internet of Things consists of a perception layer, an analysis layer, a data layer, and an application layer.

1. Perceptual layer

Data collection and sensing are mainly used to collect data of power materials and equipment. In the power Internet of Things, the State Grid Corporation identifies information resource data such as power materials, equipment, and Assets into an RFID electronic tag. Such as material classification code, equipment classification code, function location code, etc.

2. Analysis layer

Through the RFID handheld terminal, the information of the perception layer can be analyzed and transmitted in a barrier-free, high-reliability, and high-security manner.

3. Application layer

It mainly includes application support platform sub-layer and application service sub-layer. Among them, the supporting platform is mainly the ERP platform. Application services mainly include power material procurement management, equipment inspection and maintenance management, fixed ASSET MANAGEMENT, and asset life cycle management on this basis.

4. Data layer

To be precise, the data layer does not belong to a specific layer of IoT technology, but uses PDA security technology to parse data to the data center.

The system structure diagram of the smart grid designed based on the above framework, in which the power equipment, inspectors and the electronic tags covered on it belong to the perception layer, the PDA handheld computing device belongs to the analysis layer, and the client PC and server correspond to the application layer of the system and data layer. The Internet of Things for smart grid applications should mainly include the perception layer, network layer and application service layer. The perception layer mainly realizes the collection of information related to various application links of the smart grid through wireless sensor networks, RFID and other technical means; the network layer is mainly based on power optical fiber networks, supplemented by power line carrier communication Wide-area or partial information transmission of power system information; the application service layer mainly uses technologies such as intelligent computing and pattern recognition to realize comprehensive analysis and processing of power grid information, and realize intelligent decision-making, control and service, thereby improving various applications of the power grid. The intelligence level of the link.

What are the applications of RFID technology in smart grid?

Power Asset Management

The traditional meter management generally adopts the barcode method, but it has been proved that the barcode information cannot be changed and the capacity is small, and the barcode label is easy to fall off and be damaged, which will easily affect the normal reading of the equipment. Therefore, the power company uses RFID instead of barcode to realize the effective management of the meter. manage. Put RFID electronic tags on the meters, and then collect the data information of the meters through the corresponding RFID equipment, and quickly manage the storage of the meters through the RFID channel machine, and realize the batch identification of the RFID tags of the multi-box electric energy metering equipment.

Electrical Equipment Management

Whether it is to install an access door at the door of a small warehouse or use other methods such as platform installation to manage warehouse Tools, when workers use readers to read tool labels, there will inevitably be cross-reading and missing reading, so that they do not know what to take away. What kind of tool is the question. Using RFID technology, put the tools with RFID electronic tags into the specially customized smart tool cabinets equipped with RFID Readers. Whenever the tools are taken out of the cabinet, the system will record this operation in real time. It will immediately judge the details such as: who is the main responsible position, what tools were taken out at what time, and when to return them. The system can also set the operation authority, and can automatically issue a warning when a tool is not returned within a certain period of time.

Operating procedures:

The fully enclosed cabinet provides a keyless entry method, and the storage tools are very convenient → After the employee swipes the employee card touch screen to log in, the cabinet system is opened, and the employee is authorized to access the tool → click on the required tool on the touch screen, and the corresponding The electromagnetic lock of the tool storage drawer will be automatically opened, and the software will automatically record each access operation in real time, and automatically update the database → once the access operation is completed, when the drawer is closed, the touch screen will immediately display the update status of the item.

Power File management

Generally, file management based on RFID technology is composed of system and terminal management equipment. Its terminal management includes RFID electronic tags, UHF channel Access Control, UHF handheld terminals, RFID reading and writing equipment and card issuers, etc., which is the system to obtain information. Important port for outputting information. The entire system realizes the information management in the file management process through the close cooperation of all links. Among them, the UHF handheld terminal plays a pivotal role in the deployment of the entire RFID system, and can quickly realize file storage, borrowing, return, and query. The specific workflow is as follows:

Power inspection management

Power equipment inspection is a basic work to effectively ensure the safety of power equipment, improve the reliability of power equipment, and ensure the minimum failure rate of power equipment. Through the RFID handheld terminal, paperless data collection can be realized, and at the same time, the equipment and power equipment management departments can effectively supervise the work of the inspection personnel, and realize the electronic, informatized, and intelligent inspection work, thereby maximizing the work efficiency. Efficiency ensures low failure rate and safe operation of power equipment and power equipment.

Compared with the traditional power grid, the intelligentization of the smart grid is based on the complete grasp of the information of the power grid, and the data is collected by RFID reading and writing equipment as the premise to ensure the safety, stability and reliability of the data in the process of data transmission and conversion. The smart grid realizes the management of the entire life cycle of equipment, reduces the workload of equipment storage, inspection and other links, and improves the automation level of equipment management.