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中文摘要：
在密集RFID读写器部署环境中,读写器的实际探测区域与其所关注的空间单元之间存在空间失配现象,由空间失配引发的RFID数据交叉读问题会导致位置信息冲突,进而无法满足RFID上层应用的需求.基于交叉读仲裁概念的定义以及交叉读典型场景的抽象,文中提出了利用参考标签思想结合信号强度特征的相对定位技术来解决交叉读仲裁的新颖思路,设计并实现了基于滑动窗口的交叉数据读入检测和仲裁的核心算法.实验结果表明仲裁算法在不增加RFID读写器网络负载的条件下,可以在RFID数据流中有效、及时地检测出存在位置信息冲突的交叉读数据,并通过仲裁处理给出准确的相对位置归属信息.
英文摘要：
There is typically a granularity mismatch between the detection range of RFID readers and an application＇s notion of space. Cross read problem caused by the granularity mismatch is increasingly becoming the bottleneck of RFID high-level application in RFID dense reader environments. In this paper we introduce the concept of cross read arbitration and the abstraction of cross read scenes, propose a novel way to solve cross read problem by using reference tag and RSSI, and design a sliding window-based core algorithm for cross read data detection and arbitration. The experimental results show that the core algorithm can effectively detect the cross read data on RFID data streams and provide an information on attribution-reader with almost no increase in the cost of RFID reader network.
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