Variable QR code adapted to the development of Internet of Things technology

Food is food that can be traced through the entire life cycle of food through modern technologies such as One Object One Code and the Internet of Things. From the source of raw materials to production and processing to final sales, all links have data collection and records, forming a food production chain. style files and are associated with a unique QR code. By scanning the variable QR code, the corresponding traceable food files can be obtained. With the development of new information technologies such as the Internet of Things, my country's food safety information technology is also constantly updated.

One-dimensional code technology is a traceability technology widely used in the food industry, and our commonly used barcode is one of them. However, with the advent of the big data era, one-dimensional codes have a small amount of information and low density, which cannot meet the needs of users. One-dimensional codes require the support of external databases and are subject to greater restrictions in use. In order to adapt to the needs of the big data era, variable QR code technology came into being. Compared with one-dimensional code technology, variable QR codes have large data capacity, small space occupation, and strong resistance to damage. Now many food manufacturers are starting to Use QR codes to display product information. The application of QR codes in food safety traceability systems mainly includes inputting product ingredient information, label information, production process information, test report information, logistics information, etc. Due to its own anti-counterfeiting function, its application in the field of food safety is more meaningful.