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1. Introduction of RFID Food Traceability Management System
In recent years, food safety (food poisoning, mad cow disease, foot-and-mouth disease, avian flu and other livestock and poultry diseases, as well as severe agricultural residues, a surge in imported food materials, etc.) have occurred frequently, which has seriously affected people’s health and caused widespread worldwide Paying attention to how to effectively track and trace food has become an extremely urgent global issue.
At present, the output of major foods such as cereals, fruits, meat, poultry, eggs and aquatic products in my country ranks first in the world. In order to ensure the food safety of the people, effectively control the outbreak of food-borne diseases, and eliminate the export of my country’s food. Food tracking and tracing laws and regulations of importing countries are restricted, so the establishment of food tracking and tracing work in my country will have a huge impact on the development of the food industry. However, there are still very few examples of the application of the automatic traceability system in the entire food production process in my country. The traceability of the domestic food industry is currently mainly only in the retail settlement link, and is far from being applied in the entire food supply chain. The entire supply chain can be traced. form.
The RFID food traceability management system will use advanced RFID technology and rely on network technology and database technology to realize information fusion, query, and monitoring, and provide safety and security for each product during each production stage and the process of distribution to the final consumption field. Reasonable decision-making on the source of food ingredients and inventory control to realize the food safety early warning mechanism. RFID technology runs through food safety, including production, processing, circulation, and consumption. The whole process is strictly controlled, and a complete food safety control system of the industrial chain has been established to form a closed-loop production and sales of various food companies to ensure Provide the society with high-quality and assured food, and ensure high-quality data exchange in the supply chain, allowing the food industry to thoroughly implement the source of food traceability and the ability to provide complete transparency in the food supply chain.
Through the construction of this system, the problem of inaccurate reading of data due to the damage to the bar code caused by oil pollution, humidity and other reasons is solved. It can not only trace the disease and pollution problems in the breeding and processing industry, but also trace the abuse of drugs during the breeding process. , The use of additives beyond the scope and limit in the processing process changed the previous food quality and safety management that only focused on post-production control, while ignoring the prevention and control phenomenon during production. Improved food processing technical regulations, sanitary specifications and certification standards during production to drive the industry The overall progress of my country’s food industry has comprehensively improved the level of China’s food industry.
2. System structure
The RFID food traceability management system can ensure food safety and traceability throughout the process, regulate the four links of food production, processing, circulation and consumption, and issue an “electronic ID card” to foods such as rice, flour, oil, meat, and dairy products—all Attach RFID electronic tags and establish a food safety database, starting from food planting, breeding and production and processing, to realize the tracking and tracing of the whole process from farmland to table, including transportation, packaging, sub-packaging, sales and other circulation processes All the information in the database, such as production bases, processing companies, distribution companies, etc., can be found in the database through electronic tags.
Tsinghua Tongfang RFID food traceability management system includes:
Three levels of structure: network resource system, public service system and application service system
Secondary node: It is composed of the food supply chain and safety production supervision data center and the key monitoring nodes in the food industry chain. The data center provides sufficient storage space for massive food traceability and safety monitoring data, ensuring the openness of information sharing, resource sharing and safety, and realizing food tracking and safety monitoring management functions. The key monitoring nodes include planting and breeding farm nodes, production and processing line nodes, warehousing and distribution nodes, and consumption nodes. The data collection of each node and the connection of the information chain are realized, and each link is made visible.
A data center and infrastructure platform: One center is the food supply chain and safety production supervision data management center. This center is a management platform built on the basic support platform ezRFID (Figure 3-1). ezRFID is an RFID middleware and the center of RFID operation. It acts as an intermediary between hardware and applications. It will realize the smooth coordinated operation of various RFID devices and software at different nodes and different traceability links. The functions included are not only the delivery of information, but also services such as interpretation of data, security, data broadcasting, error recovery, locating network resources, finding a cost-compliant path, and prioritizing messages and requirements. Its function is mainly reflected in two aspects. One is to control and control the RFID reading and writing equipment to work in a predetermined manner to ensure coordination and coordination between different reading and writing equipment; the other is to filter data according to certain rules and screen out most of the redundant data. , Transmit the truly effective data to the background information system. The framework includes two parts: RFID edgeware and RFID integrated middleware.
The following is the flow chart of the tracking system for livestock (Figure 3-2), grain, oil, and fruit (Figure 3-3).
As shown in the figure, after a pig or cow is born, it will be marked with an RFID electronic ear tag. The ear tag contains the unique identification number of the pig or cow. This number will run through all nodes and be related to the management and monitoring information of each link. Association to achieve retrospective purposes.
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Figure 3-1 Schematic diagram of the structure of RFID food tracking system
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Figure 3-2 Schematic diagram of the process of the livestock tracking system
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Figure 3-3 Schematic diagram of the process of tracking system for grain, oil, fruit and vegetable food
Three, system function
The RFID food traceability management system consists of the following systems: central database system, planting and breeding safety management system, safe production and processing management system, food supply chain management system, monitoring system, food safety basic information service system, etc., through planting and breeding production The information link established by the informatization of processing, production, circulation and consumption realizes the safety control of the internal production process of the enterprise and the real-time monitoring of the circulation links, and achieves the traceability and recall of food.
Each system function:
1.Central database system
Mainly include the following:
Food classification library and sample library
Food production unit attribute database
Food safety standards and safety indicators
Food production and management information
Food safety monitoring and testing data
2.Planting Farm Management System
The data of the planting farm is uploaded to the management center, and the supervision department can monitor it in real time. Mainly include the following functions:
Food maintenance and management: establish basic information files for livestock, poultry, fruits, vegetables, fish, etc. purchased from the domestic farms or outsourced, and identify them with electronic tags;
Growth management: According to standard parameters, judge its development and health status, adjust nutrition measures and feeding methods;
Feeding management: record each feeding situation, check the nutritional requirements at different growth and development stages, and select reasonable feeding formulas;
Reproduction management: record family tree information and reproduction information;
Disease management: establish disease files according to corresponding management standards;
Epidemic prevention management: Establish quarantine and immunization files, including vaccines, medications, etc., and embed various prohibited drug information in the system to prevent animals from being released during the drug withdrawal period and eliminate source pollution.
3.Safety production and processing management system
This system is mainly for the management of the production and processing of food in farms, specifically, the slaughtering and production and processing of meat such as livestock, poultry, and fisheries, the selection and processing of food such as fruits, vegetables, grains, and rice, and the production of milk and dairy products. , Beverage production, etc.
In the production and processing link, the information identified by the label in the planting and breeding link is transferred into the information chain of the production and processing link, and the information on the different nodes of the production and processing is collected according to the management standards and specifications, and the information is uniquely identified through the electronic label, and the information is transmitted To the logistics link.
4.Supply Chain Management System
Mainly for warehousing and logistics distribution management, through RFID in the production and processing and store supply chain to establish a traceability system. In logistics, the product information is recorded on the label of the pallet or box. In this way, the RFID system can clearly know the respective location, identity, storage and transportation history, destination, expiration date, and other useful information of the boxes on the pallet or even the individual goods. The RFID system can provide detailed data for the actual goods in the supply chain and establish a physical connection between the goods and their complete identities. Users can easily access these completely reliable goods information. And through the efficient data collection of RFID, the warehousing logistics information can be fed back to the production and processing in time to guide the production.
5.Consumption management
When the food enters the most terminal sales, the existing mature bar code technology can be used according to the analysis of the specific situation.
6.Quarantine monitoring system
Not only inspection and quarantine are carried out in the process of planting, breeding, production and processing, the RFID-based quarantine monitoring system is also implemented at the crossing, and the monitoring chain is extended to the supermarket, and the monitoring objects cover all kinds of food.
7.Basic Information Service System
This system is a unified resource release and food safety data information sharing service network, providing a full range of food safety data information sharing and services. It is mainly used for information inquiry, food safety monitoring and analysis, event prevention, etc., and can be deployed to consumer terminals such as supermarkets. By scanning the electronic quality and safety code of the final product, the information of each supply link of the purchased food can be inquired, and it can also be traced to the upper level to finally determine the problem. This method is mainly used for the recall of problem products.
Four, system characteristics
1. Using the advantages of RFID to achieve the management of food safety and traceability, compared with the record file traceability method, it is efficient, real-time and convenient.
2. Provide completely transparent management capabilities in the food supply chain to ensure the entire process of visual control, monitoring and traceability of food safety, and to recall the problematic food.
3. It can comprehensively monitor the source pollution of planting and breeding, additives in the production and processing process, harmful substances, and safety hazards in the circulation link.
4. It can provide a basis for effective assessment and scientific early warning of potential food safety hazards.
5. Data can be reported in real time and accurately through the network, which is convenient for faster and more in-depth analysis and research.
6. Through the Internet, consumers can inquire about the complete tracking information of the food purchased.
5. Applicable fields
This system can be widely used in the safety traceability management of various foods such as agriculture, forestry, fishery, animal husbandry and sideline products. It is suitable for grain and oil food, livestock and poultry food, fruit and vegetable food, aquatic food, condiments, dairy products, convenience food, infant food, Food additives, beverages, cosmetics, health foods, etc.
Source Dimension Deep Solution:http://www.visiontech.com.cn/rfid/shipinzhuisu.html
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