Application solutions based on RFID in the manufacturing industry
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1.1. System background
China is one of the world’s largest textile and garment production countries. It has concentrated a large number of low-end and medium-end garment suppliers in the world. The number of domestic workers in the garment production industry is even a very large number. Compared with other industries, the clothing production industry has its unique features: large-scale, small batches, multiple styles, short product cycles, strong seasonality, etc.; and at this stage, the clothing production industry is facing more and more competitive pressures, so , How to control costs, order production by sales, and make scientific forecasts are issues that the managers of garment manufacturers attach great importance to. In this field, most production companies still use more traditional production management methods (manual calculations, manual statistics, and barcode paper) to manage the data of the production line, which is low in efficiency and high in cost.
1.2. Status Quo and Analysis
In order to solve the above problems, New Force combines the characteristics and advantages of RFID itself to propose a smart clothing production line management plan based on RFID. RFID real-time production line is the general trend of the garment industry, and its development prospects are very broad. The RFID real-time production line project of the clothing industry is also called the RFID electronic work ticket for the clothing industry, usually referred to as the electronic work ticket. It is the embodiment of a high-tech project that uses wireless workstations to cooperate with the apparel production management ERP system, and combines the management experience accumulated in the history of industrial production with the current tag reading and writing technology, data acquisition technology and other high-tech projects. Use RFID wireless identification and collection technology to replace the traditional counting, work ticket, and barcode recording modes of the workshop, breaking through the old framework. It has large information capacity, high real-time performance, diverse functions, fast and convenient operation, reusable, and long-term use Advantages such as low cost. Cooperating with computer software, RFID readers, and the network, through the operation and recognition of the electronic tags carried on the pieces of clothing flowing to each production process, the entire production process can be monitored and managed in real time, including the execution and completion of orders, and the tracking of clothing production progress. Control, find the bottleneck of the assembly line, control the quality of clothing production, and calculate the wages of workers. Based on the accumulation of past production information, intelligent production scheduling and process improvements can also be made to the orders to increase production efficiency.
3. System introduction
Garment production line management is a very large system, which can integrate enterprise senior management, attendance management, purchase management, quality management, production line management, financial management, warehousing and logistics management, retail department management, etc. This program mainly introduces production line management.
3.1. The working principle of the system
useRFIDThe label ID number replaces the material or product, records its corresponding material and product parameters, and solves the fragility, inconvenience of searching, and waste of resources in traditional printed labels. The label can also be recycled, which can reduce costs and be environmentally friendly. The working principle of the system is as follows:
Grey cloth label
Equipped with an RFID tag for each grey cloth supplied, and record the material, color, purpose, cost and other information of the grey cloth on the RFID tag.
Staff Card
Each worker is equipped with an RFID tag as an employee card. If the company has a meal sales system or plans to be equipped with a meal sales system, employees can be equipped with dual-frequency card RFID tags.
Station reader
Install one on each stationReader, Used for employees to punch cards and write cards on labels on materials during production. Employees read their own employee tags once when they go to and from work, and write the label on the finished product (semi-finished product) to the card once each time they complete this process of a finished product (semi-finished product) during work.
The reader can be selected according to the needs of different workstations: if the distance is required, a long-distance reader can be selected, and portable equipment can be selected at the workstation where it is not convenient to install the equipment.
Inspection station
At the end of each production line, an inspection station is set up, equipped with a reader and a display tool. The reader reads the label information of the semi-finished products (finished products) that have been produced to determine whether there are process omissions and total statistics, and will meet the standard products Or the semi-finished product is replaced with a new label that has been initialized and transferred to the next process production line. If it does not meet the standard, it is placed in the corresponding process non-compliant waiting area, and it is packaged and sent to the corresponding process for rework.
Automatically record statistics
The system automatically records which products each worker is doing during which time period, and how long it takes, and uploads the accumulated counting results during this period to the server to count the employee’s piece-rate performance, so as to achieve real-time recording of the employee’s workload;
Employee production query
Employees can check their production records throughout the day through the self-service card swiping terminal.
3.2. System structure diagram
Staff Information Management Module
Use RFID tags to manage the personal information of employees.
Material Information Management Module
Through the RFID tag information on the material, it can automatically understand the situation of the production picking, such as: how much material is picked, what material, when to pick it out, which product is used for production, and calculate whether the picking amount and product output are reasonable. From this, we can get information about whether the material arrangement is reasonable, whether the production scrap rate is reasonable, etc. This result helps relevant departments and colleagues and clearly adjust the material arrangement plan, product cost, and price system.
Production Information Management Module
Through RFID technology to manage the production situation of the entire production line, what product is produced every hour and how much, you can also use the real-time tracking production information of this module to analyze the production progress, difficulty, and estimated completion time of each product.
Check the statistics management module
Use RFID to identify the information of clothing labels to check the product qualification rate on the production line. Specific to people and processes, it can analyze which processes are prone to problems and whether the employees are skilled or not.
Employee workload statistics module
According to the employee’s card swiping record and the corresponding clothing card swiping record, the production output of the employees is counted. The system automatically calculates the type, quantity, compliance status, bad product status, scrap status, and repair status of each employee every day and hour. Once the statistics are recorded in this module, relevant reports can be generated and uploaded to the financial and administrative departments and colleagues who need this report.
3.3. System Topology Diagram
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