Efficient Continuous Scanning in RFID Systems
Efficient Continuous Scanning in RFID Systems
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DOI：
10.1109/infcom.2010.5461946
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发表时间：
2010-03
期刊：
影响因子：
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通讯作者：
Bo Sheng;Qun A. Li;W. Mao
中科院分区：
文献类型：
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作者：
Bo Sheng;Qun A. Li;W. Mao
RFID是一种新兴的技术，具有许多潜在的应用，如供应链库存管理。实际上，这些应用通常需要一系列连续的扫描操作来完成一项任务。例如，如果想要扫描大型仓库中的所有带有RFID标签的产品，则在给定RFID读取器的有限阅读范围的情况下，必须在不同位置发起多个扫描操作以覆盖整个仓库。通常，这一系列的扫描操作并不是完全独立的，因为一些RFID标签可以被多个进程读取。在每个过程中简单地扫描阅读范围内的所有标签是低效的，因为它收集了大量冗余数据并且消耗了很长时间。在本文中，我们开发了有效的计划，连续扫描操作定义在空间和时间域。我们的基本思想是充分利用前一次扫描操作中收集的信息，以减少后续扫描操作的扫描时间。我们说明在评估中，我们的算法大大减少了总的扫描时间相比，其他解决方案。
RFID is an emerging technology with many potential applications such as inventory management for supply chain. In practice, these applications often need a series of continuous scanning operations to accomplish a task. For example, if one wants to scan all the products with RFID tags in a large warehouse, given a limited reading range of an RFID reader, multiple scanning operations have to be launched at different locations to cover the whole warehouse. Usually, this series of scanning operations are not completely independent as some RFID tags can be read by multiple processes. Simply scanning all the tags in the reading range during each process is inefficient because it collects a lot of redundant data and consumes a long time. In this paper, we develop efficient schemes for continuous scanning operations defined in both spatial and temporal domains. Our basic idea is to fully utilize the information gathered in the previous scanning operations to reduce the scanning time of the succeeding ones. We illustrate in the evaluation that our algorithms dramatically reduce the total scanning time when compared with other solutions.