RFID technology is not only a simple substitute for barcode technology, its application in discrete manufacturing industry will change the production and management mode of discrete manufacturing enterprises. Because RFID technology has many advantages, such as large data storage capacity, read-write, non-contact, long recognition distance, high speed, good confidentiality, strong penetration, long life, strong adaptability to the environment, and can identify multiple labels at the same time, it can replace the bar code of automobile production line with vehicle identification and tracking without manual intervention, It can greatly reduce the labor intensity and error rate of workers. Now RFID technology can achieve automatic, high-speed, effective recording, reduce the labor intensity of operators, so as to improve the qualified rate of products.

Establish a unified central database in the workshop as an information platform for goods circulation, which is convenient for comprehensive and standardized management. In the industrial sector, RFID technology is used to assign an identification number (ID) to each component in the WIP, which is the name of the component in the information network. Through RFID technology, the production status and inventory are mapped to the information network, registered in the central database, and transferred to the information system (such as ERP and MRP).

The application of RFID technology in production line monitoring can achieve automatic control and detection, and save cost. RFID tags can uniquely identify each product, and record the raw materials and sources, production line location, production process, inventory status and other information of each product through the application program, so as to provide an effective basis for enterprises to better manage production and adjust inventory.

It used to be a typical mass production process of automobile manufacturing, technology and materials. Now with the development of automobile personalization (buyers can customize), almost every car has some personalization. Therefore, it is necessary to apply RFID technology to achieve transparency in the whole production process. Automobile industry chain can be simply divided into parts manufacturing, vehicle assembly and after-sales service. At present, RFID technology is mainly used in parts manufacturing and vehicle assembly. It is not only easy to make mistakes, but also can not quickly improve the operation efficiency of each process from the source.

Application of RFID technology in automobile welding production line

In the early body welding production line, most of the manual way, step by step to read the written operating procedures, it is easy to make human errors. Later, bar code labels were gradually used for management. Although the human error rate was reduced, the recognition error was often caused by the influence of dust, high temperature vibration, oil pollution and so on. Once again, the cover of the case, whether it is bar code labels or instructions can not guarantee the use.

In the figure, the electronic tags with high temperature resistance, dust resistance, metal resistance, magnetic resistance and reusability are selected to monitor the operation of welding production line through automatic identification. Information can be work instructions (model, welding instructions, procedures, etc.) stored in the target tray, antenna, in order to avoid the influence of people and machines, can be set in the welding production line high, due to the RFID tag pollution resistance, strong durability, greatly reduce the recognition rate. It effectively improves the visibility and error of internal supply chain.

Application of RFID technology in automobile coating production line

The process of automobile coating production line is complex and diverse, the model changes greatly, and the production flexibility is great. The purpose of car spray painting is to make every car sold more perfect for consumers. Therefore, every process of workshop production line must have a high level of automation and quality control system. Therefore, RFID technology is used in the body identification system of the automatic control system of the production line, which can collect all kinds of on-site data statistics, status monitoring, quality detection and other information in the production process in real time, and send them to the production control center in time.

In the automobile coating production line, the conveying equipment is a sliding conveyor. A passive RFID tag with thermal resistance up to 240 ℃ is installed on each sliding body. During the whole manufacturing process, the tag has a workpiece, forming a tag with body movement data, which becomes a vehicle of "smart car". data According to the different needs of production process and management, on-site reading and writing stations can be set at the entrance of painting workshop, the bifurcation of workpiece logistics and the entrance of important processes (such as painting room, drying room, storage area, etc.). Each field reading and writing station can write skid, body information, paint color and times, and send the information to the control center.

The combination of RFID technology with optical fiber Ethernet and Fieldbus can form a complex automatic control system, realize the flexible production of automobile painting production line, improve the automation level of automobile body production, adapt to the flexibility of different production varieties, and make the system have good reliability and fault tolerance.

Application of RFID technology in automobile assembly line

As the last link of automobile production, assembly workshop involves many parts and processes, which plays an important role in ensuring automobile quality and production progress. The interruption of any assembly process means the delay of operation. In the assembly line, especially in the JIT production mode, the raw materials and parts must be delivered on time, and the inventory and material supply must match the vehicle assembly schedule. Before the adoption of RFID technology, automobile manufacturers use bar code or paper identification card to track and monitor the automobile assembly process in real time. The disadvantage is that the bar code and ID card are easy to be destroyed, replaced or lost, leading to production operation errors.

Ford, for example, has been using RFID technology in its factories in Mexico for several years. The factory installs the recyclable RFID tag on the clothes rack of the assembled vehicle, and then formulates the corresponding serial number for each assembled vehicle. The serial number is written into the RFID tag by the card reader, and the tag with the detailed requirements of the vehicle runs along the assembly conveyor. The card reader is installed at the appropriate position of each work point to ensure that the vehicle can complete the assembly task without any error in the assembly line position. When the boom carrying the assembly vehicle passes through the card reader, the card reader can automatically obtain the information on the tag and send it to the central control system. The central control system can collect the production data and quality monitoring data of the production line in real time, and then transmit them to the material management, production scheduling and other departments. Quality assurance and other related departments. In this way, the functions of raw material supply, production scheduling, quality monitoring and vehicle quality tracking can be realized at the same time, and various disadvantages of manual operation can be effectively avoided.

The application of RFID technology in automobile production line has incomparable advantages over other technologies. The non-contact automatic data acquisition can withstand harsh working environment, ensure flexible configuration, fast response speed and low requirements for communication system. So that the factory can accurately collect the relevant data and conduct online analysis and processing, effectively realize the automatic real-time tracking and monitoring of the automatic production line, and improve the production efficiency. I believe that with the continuous development of RFID technology and the popularization of application system, the performance of RFID technology will be greatly improved, the cost will be gradually reduced, so as to reduce the security risk. RFID technology will become the mainstream of automobile information manufacturing and automobile information management, so as to promote the development of automobile industry.