Abstract
Radio Frequency Identification (RFID) is a kind of information that using radio Identification technology. Anti-collision algorithm has always been a research topic for researchers. The anti-collision algorithm of labels is mainly divided into two major categories: ALOHA-Based Anti-Collision Algorithms and Anti-collision algorithm based on binary search. Both algorithms have their own advantages and disadvantages, Anti-collision algorithm that based on ALOHA is simple and fast, but it will lose labels. Binary-based anti-collision algorithm can be searched for every tag, and it is not easy to lose tags, but it is relatively complicated and has poor security. Therefore, this paper proposes an Anti-collision algorithm which combines the dynamic frame slot Anti-collision algorithm with the return binary search algorithm.
Highlights
1.1 Status of RFID researchRFID technology is developing rapidly in developed countries all over the world
Tag collision is a technical problem in RFID technology
Wenzhao WU[2] proposed that the problem of label anti-collision is dealt with by dynamic binary tree algorithm DBS, quad tree algorithm DFS and query tree algorithm QT, respectively
Summary
RFID technology is developing rapidly in developed countries all over the world. For example, the United States has widely used RFID technology[1]. Compared with the developing countries, China is the representative of the developing countries. This technology still belongs to the emerging industry and is in the process of active development. Tag collision is a technical problem in RFID technology. Wenzhao WU[2] proposed that the problem of label anti-collision is dealt with by dynamic binary tree algorithm DBS, quad tree algorithm DFS and query tree algorithm QT, respectively. ZHOU M[3] proposed that an anti-collision algorithm BLBO with lock-back is proposed by adding the lock-back function to the traditional binary tree. Reference combines the characteristics of CDMA and DFSA algorithms to reduce tag collision to a greater extent[4]. Document[5] skipped idle time slots by adjusting the length of the inventory frame to increase the anti-collision capability of the system
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