IOT Technology In Food Safety Supervision And Traceability System

In recent years, many food safety incidents occur frequently, from Sanlu milk is called "toxic infant formula" to Mengniu, Yili pollution caused by raw milk cancer risk exists, missing food events, smoked ginger, bread and dyeing of repeated clenbuterol and cooking oil. Then to the recent H5N9 pandemic and drug residues in agricultural products such as food safety incidents of animal diseases such as avian influenza, a serious threat to the health of consumers, attracted worldwide attention, the reputation and development of China’s food industry has brought great damage. The wide variety of fruits and vegetables apples, tomatoes, dragon fruit, etc., as the necessities of daily life, the importance of food safety self-evident. How to ensure the safety of the food supply chain has become an urgent global issue.Under the trend of global economic integration, the scope has been extended to commodity circulation world-class standards. To globally, commodity production, processing, packaging, storage, transportation and sale of various aspects of effective monitoring and management, to facilitate product flow and sales enterprises to master the situation and to meet consumer demand for retroactive source, the birth of a new generation of information management technology-the Internet of Things technology. Based on RFID technology to build things and food safety system is a 100% back to track food source solutions. It can answer the user about the food "come from? How come? Where to go? " and other issues, the data given by explicit answer, improve food quality and safety emergencies and emergency handling capabilities help to break barriers to international trade, thereby improving consumer confidence, improving corporate image and economic benefits.In this paper, the design of the dragon fruit to fruit and vegetables in the safety oversight system of retrospective application example (or fruit and vegetable supply chain management system) model of things, all aspects of the user can be based on the actual needs of the business, through the system can learn anytime, anywhere fruits and vegetables in the "from farm to table" the entire production-storage-processing-sales-consumption process real-time status, such as field management of the production process, transport links vehicle tracking, positioning, marketing chain products storage, warehousing, distribution, etc.. In this system, the entire process is automatic recognition, without human intervention, thus simplifying the management process of traditional fruits and vegetables logistics industry, saving time, saving labor costs, but also improve the security of the entire chain, reducing the human factor error rate. The design of the system model can provide a good idea to practice safety oversight of fruits and vegetables retrospective application of networking technology system.This article describes the basic components of the Internet of Things architecture illustrates the workflow of the EPC Network. Establishment of fruits and vegetables throughout the supply chain system, on the basis of the principle of analysis networking and design EPC chip, card readers and EPC Information Server, fruits and vegetables to build a complete retrospective system of safety oversight.The main work is as follows:1. Related technology research:analysis of the current situation of the Internet of Things technology-based research and safety oversight of fruits and vegetables, backward system is to ensure that a prerequisite for the design of the system model.2. Model improvements:based on Internet of Things technology and wireless communication technology, combined with the characteristics of the fruits and vegetables, backward system of safety oversight, to analyze and improve the logistics and safety supervision and management of RFID application architecture model, the model of the system design process more systematic.3. Design analysis and design:according to the improved model, by the investigation of the effect of the role of user information in the use of the system, indicating the feasibility and effectiveness of the system.