In recent years, due to the frequent occurrence of food poisoning, mad cow disease, foot-and-mouth disease, avian influenza and other livestock and poultry diseases, as well as serious drug residues in agricultural products, accidents have seriously affected people's health and attracted great attention from all over the world. Therefore, the supervision and traceability of animal husbandry and agricultural products has become a key method.

Taking animal husbandry as an example, in developed countries such as Europe and the United States, the application of RFID technology to track and identify livestock has become very popular. For example, the British government stipulates that all kinds of tracking and identification methods must be adopted for cattle, pigs, sheep, goats, horses and other animals.

Ear tags are usually installed on the ears of animals, and the detailed information of animals, such as breed, age, weight, breeder information, disease conditions, etc., is recorded through the wireless sensing capability of RFID technology. At the same time, these tags can automatically read the data, and can directly send the data to the computer database.

Japan, under the auspices of the Fruit and Vegetable EDI Council, has launched a production history and food tracking system based on RFID technology for agricultural products such as apples, rice, and vegetables. Many farmlands in Japan are using field servo systems. This system is mainly used by field management and monitoring equipment using RFID tag and other wireless technologies to automatically record farmland images and soil pH, temperature and humidity, sunshine, and even wind speed, rainfall and other micro-climates, and record agricultural products in detail. Production growth record.

At present, my country's grain, fruit, meat, eggs and aquatic products and other major food production ranks first in the world, and the consumption also ranks first in the world. Food safety issues are frequently reported in the newspapers. In order to protect the health of residents, it is necessary to strengthen the supervision of food safety and record the whole process of production and circulation of products, and RFID technology is undoubtedly the best choice.

However, in order to achieve large-scale application of RFID technology in agriculture, there are still many problems to be overcome. First of all, agricultural production has the characteristics of "depending on the weather" and is easily affected by climate and environment, and different crops are very different, so it is difficult to directly copy the same RFID application mode. In addition, there are problems such as high water and humidity in many agricultural scenarios, which will interfere with the read rate of RFID.