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1. Food safety status
In recent years, my country’s food safety has become more and more serious, such as Sudan red, poisonous ginger, waste oil, clenbuterol, melamine and other incidents. Especially in meat products, such as SARS, H7N9 avian flu and so on. Meat food safety incidents have a huge impact on the lives and health of consumers, making food safety issues a hot issue that people pay attention to. At present, there are many unsafe factors for meat food in my country, mainly from biological and chemical pollution. Among them, biological pollution is the most serious. Several types are manifested in the supply of feed on farms, the slaughtering and processing of farms, and the circulation of meat products. , Meat food storage, business order is not standardized, etc.
2. The advantages of RFID in the field of meat food safety
Use RFID technology and information technology to realize the monitoring and management of the whole process of breeding, feed, breeding, slaughter, processing, distribution, and retail and timely tracking of fish. It is of great significance for improving the production quality and safety of meat products, circulation control, consumption safety, and protecting the health of consumers. The use of RFID technology can alleviate the safety problems of meat food. Strictly speaking, consumers can purchase meat food with confidence. Through RFID technology, the information of meat food is transparent. RFID technology uses non-contact automatic rapid reading and writing, The data can be encrypted and the “label” on each piece of meat food can be used to monitor the entire process of feed, breeding, slaughter, processing, transportation, storage, and retail, so that the meat food information can be tracked and traced in time. The traceability method generally adopts the counter-current method of supermarket-seller-supplier-transporter-breeding farm, which can quickly find the cause of quality problems, adding that the food purchased by consumers in the supermarket finds safety problems, and can trace to the upper level , And finally determine the problem. At the same time, the effective evaluation of meat products is carried out to achieve a combination of prevention and treatment to ensure food safety.
3. Working principle and system structure
3.1 Working principle
Figure 1. Schematic diagram of data processing in the circulation link of the food safety management system
Figure 1 is a schematic diagram of a meat food safety management system. The working principle is as follows: (1) After the reader starts to work, the data item antenna stored on the electronic tag sends out the serial number information through the RFID communication technology to read into the reader, and the reader receives After the received signal is processed accordingly, it is transmitted to the data processing chip integrated in the reader. (2) The enterprise application software accesses the database through the communication network to obtain the relevant information of the meat food.
3.2 System structure
The overall design idea of the RFID food safety system is to automatically identify the meat food breeding, breeding, slaughter, processing, transportation, storage, supermarket retail and other information access in a certain format through RFID, and form an effective meat food through the communication network and the back-end database. Supply information chain. The system consists of electronic tags, readers, sensors, food safety databases, management application systems, and corresponding communication networks to realize functions such as breeding management, feed management, veterinary drug testing management, slaughter management, logistics and storage management. Meat food is in the process of feeding and slaughtering. Embed RFID electronic tags on its meat videos, and write various information that can affect the quality of food through the communication network like a food safety database, such as the origin of the aquaculture, the source and composition of the feed, the length of the breeding period, the slaughter and processing procedures, and the shelf life Wait. In the transportation and storage links, logistics providers use RFID equipment to automatically read electronic tag data, and use sensors to detect parameters such as temperature, humidity, and light transmittance, and write them into the food safety database.
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