Modern warehouse storage is not only to complete the simple batch processing of goods in and out, but also to make a clear database record of the type, quantity, production attribute, stacking position and other information of goods in the warehouse. In order to get accurate goods data and supply chain information in each stage of logistics.

At present, one-dimensional bar code / two-dimensional bar code identification technology has been widely used in the classification and labeling management of goods. But its bar code technology relies on visible light scanning reflection, low recognition rate, easy to damage, stain, sensitive to water and oil and other media, and the amount of information stored is very limited, which affects its application in large-scale logistics management.