earticle

영어

This paper introduces the basic concept, development process, key technology of RFID and related theory. And in view of the key technology of RFID, anti collision algorithm is analyzed. Tag collision algorithm is to solve the reading and writing implement effective communications within the scope of multiple tags at the same time, speaking, reading and writing for communication problems. Under the condition of keep a certain complexity and cost, minimize the search time, improve the efficiency of recognition, is the direction and trend of algorithms. Through the comparison of several kinds of algorithm for collision, clear the necessity of the collision algorithm is improved. The author select dynamic frame ALOHA algorithm, introduces in detail the improved algorithm, and apply it to the system, to improve the recognition efficiency.