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Introduction of RFID Functions (Part 1)

The application of RFID tags in the automotive industry system mainly includes vehicle body identification and tracking management, tracking management of parts and fixed assets, and logistics management of complete vehicles.


1. Car body tracking and recognition in finished automobile production

After the RFID vehicle tracking system is adopted, the electronic tag is generally placed on the skid with the car body, which runs with the workpiece from beginning to end. The electronic tag forms data that moves with the car body and becomes a "smart car body" that carries the database throughout the production process.


The basic process is: after the detection switch detects the car body in-position signal, the reading/writing device automatically reads the data stored in the tag that is installed on the skid, and then sends the data to the PLC, and displays it on the man-machine interface; Upload to the workshop production process monitoring system PMC through PLC for further processing and calculation, so as to realize the tracking and production process control of the whole workshop's workpiece logistics. The use of RFID technology on the production line does not require all the reading/writing devices to communicate with the main database, so the failure of communication with the main database will not cause production to stop. And after the station, data can be written into the tag. Therefore, the application of RFID in the car body identification system is increasing.


2. Tracking management of parts and assets

Automobiles are composed of a large number of parts and components, and good parts tracking management can improve the level of logistics and quality management. The current part tracking is mainly through two methods, one is that the label is attached to the part itself, called a hard link. A typical example is the tire tracking management in the use of RFID. Such parts generally have the characteristics of high value, safety requirements, and easy confusion between parts. The use of RFID tags can effectively identify and track parts. The second one is that the label is fixed on the package or shipping rack of the part. The latter can reduce the cost of using RFID. However, it is necessary to maintain a link on the database between the labeled RFID container and the parts in the container. This method is called a soft link or soft tracking.