The application of RFID in the production line-Brilliance Automotive Production Line Management Case
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I. Introduction
RFID technology has been widely used in my country’s commercial retail industry, and the collection of industrial production data is also of great significance.Our Kaitai Technology designed this for Shenyang Brilliance Automobile CompanyRFIDThe system can perform statistics and inquiries at any time, providing real-time and reliable information for production statistics and cost accounting. Another important content of its automatic data collection is the complete record of various inspection data of the automobile and various natural data of the production process, which can track the quality of the whole vehicle for life. Provide first-hand information for accident analysis, responsibility tracking, etc.
2. System introduction
The basic principles and specific methods of the system structure, data structure, program design, module setting, etc. related to the system function and management. as follows:
In the modern, large-scale automobile production industry, all kinds of production data. Quality information is collected in real time, and various information needs to be transmitted to material management, production scheduling, product sales, quality assurance, planning and finance, and other related departments in a timely manner. This is necessary for raw material supply, production scheduling, sales service, quality monitoring, cost accounting, etc. Both play an important role, and at the same time, this data is of great significance for vehicle quality tracking and after-sales service.
Production and quality data are dynamic information, with a large amount of data and complex content. This data is used for production statistics and quality monitoring. It also has functions such as lifetime quality tracking of the entire vehicle. The data must be accurate; in addition, for the right Considering labor productivity and other aspects, it is impossible to assign a dedicated person to be responsible for data input at each site on the site. Data collection can only be completed by production workers with the simplest operation. Therefore, the system guarantees real-time, accurate and automatic data, which is the biggest feature of this system. .
Multiple functions such as RFID automatic identification, computer network technology application, and LED display provide a reliable guarantee for the realization of the above functional requirements.
Three, system overview
The Shenyang Brilliance General Assembly Line has 6 channels and 3 main channels for the sequencing of 48 car bodies. The production data is collected through RFID automatic data collection technology, computer network technology and LED display. Tags, long-distance RFID automatic readers, and LED display screens are connected together to form a real-time monitoring of the production data, inspection data collection, and logistics distribution system of the final assembly line. This system can realize, for example, automatically record the natural conditions of the whole process of automobile production, and automatically identify the accuracy of accessories. The accuracy of vehicle sorting. Realize the comprehensive record of the entire vehicle file data. Save the work recorded in each station in the past.
The spraying production line below this system began to install long-distance RFID at the rear of the car shell and at the license plate. Before entering the final assembly production line, the RFID identification uses the reader to enter the body number, model, type, configuration, etc. of each car, and formulate the production serial number. At the same time that 48 vehicles are arranged in the 3 main aisles of the assembly workshop, the supporting operation data of the final assembly line is sent to the engine subassembly, dashboard subassembly, engine assembly, and logistics delivery stations through the network to guide related supporting workers. The position organizes supporting production and parts delivery in strict accordance with the order of the on-line assembly of various car bodies. Beginning from this, the entire line adopts RFID automatic identification technology, and the system automatically records the vehicle body online time, each station assembly record, operator and other information, and the LED display of each assembly station clearly shows the co-location. Work information, guide the assembly workers to work. Avoid posting multiple configuration sheets and job sheets on the car body.
Stations such as offline, delivery, pickup by the quality assurance department, and pickup by the sales department. This system uses RFID automatic identification technology. The computer performs retrieval and data processing, and automatically completes data entry and proofreading, as well as time, shifts, and operators. Automatic recording and other tasks. Achieved that is to reduce the tedious labor of workers, but also improve labor efficiency and ensure the accuracy of data.
Four, system management
The safe and reliable operation of any modern management system is inseparable from two factors. One is the reliability and safety of the system itself. This system is required to have high fault tolerance and error correction capabilities to avoid misoperation as much as possible. And other possible reasons for any errors, this should be ensured by the system design and development; another, and the most important point, that is, a set of management systems must be established to ensure the normal operation of the system, and the use of modern technology must be based on scientific and strict management. premise.
Equipment required by the system
This system is a real-time line production data collection system, which is different from general management information systems. The nature of line production is determined by the nature of line production. No system failure is allowed during production. Any small problem in the system may cause production to stop, and the system is safe and reliable. It is a very important issue that must be seriously considered and resolved in the system design. Network server: an important part of the final assembly data acquisition system LAN (Local Area Network), long-distance RFID tags and supporting RFID readers; and LED display screens. The server is running Window NT Server 3.51 network software. The server adopts the dual-system hot backup mode to ensure that when Server 01 fails, Server 02 can immediately switch to working state to ensure the normal operation of the system.
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