The approach of hybrid data on tag in decentralized control system

The study of Radio Frequency Identification (RFID) is concentrating on saving object related data in networks, called “data-on-network”. This approach, however, cannot adapt to some manufacturing scenarios, especially which require rapid response and process flexibility. Another alternative approach is to save the data on the tag which is attached to the object, called “data-on-tag”. But large amounts of data on tag would make reading and writing data slowly. For solving this problem, a hybrid method is proposed. What´s more, three key enabling technologies are described in detail, namely, the mapping relationship between hybrid data and further manufacturing information stored in the remote database, the data model of backend database, and the decentralized control node model. The flexible automated production line is taken as an example of the decentralized control system to illustrate the utility of hybrid-data-on-tag.