基于后退式二进制搜索算法的有源RFID系统防碰撞算法

有源RFID技术在远距离、高传输速度、穿透能力强和高可靠性等应用方面比无源RFID技术有着无可比拟的优势。有源RFID技术应用中的一个核心和关键技术就是标签的防碰撞问题。在对比现阶段主要有源RFID防碰撞算法的基础上,本文提出了一种后退式二进制搜索防碰撞算法,算法有效的解决了有源RFID系统中的多标签防碰撞问题。在2.45G有源RFID硬件平台上对该算法进行测试和验证。测试结果表明,该算法算法具有识别速度高、速度快和准确率高的特点。解决了有源RFID系统的多标签防碰撞问题。

Active RFID Anti-Collision Algorithm Based on Backward Binary Search Tree

Active RFID technology has incomparable advantages than the passive RFID technology in the long-range, hightransmission speed, penetrating ability and high-reliability applications. A core and key in the active RFID technology isa tag anti-collision problem. Comparing the main active RFID anti-collision algorithm at this stage, the paper has abackward binary search anti-collision algorithm. The algorithm solves the multi-tag anti-collision problem in the activeRFID system. The algorithms are tested on 2.45G active RFID hardware platform. The test results show that the algorithmhas identify high-speed, high speed and high accuracy. It solves the problem of multi-tag anti-collision of active RFIDsystem.