Study on Anti-collision Algorithm to Identify Batch Tags

RFID is a communication technology with non-contact, two-way data transmission characteristics which is used to the transport sector more widely. Such as vehicle identification of the city roads, you can achieve a false license plate search, traffic volume measurement and control, speeding and other illegal acts investigation. But the difficulty is involved in multi-target recognition and rapid tags,and so on. Existing RF technology has been able to identify the vehicle which speed up to 25-40KM /h.In this paper, research priority is how to identify a batch of tags which through the reader fastly. In a word,,it is a new anti-collision collision algorithm. Urban road vehicle identification were described as a example. When we face the vehicle identification,we can divided them into several groups through their different distance to the reader.Then to provide corresponding delay, we can decrease the probability of collision to increase the traffic recognition efficiency.