计算机科学与探索 ›› 2009, Vol. 3 ›› Issue (6): 561-576.DOI: 10.3778/j.issn.1673-9418.2009.06.001

• 综述·探索 • 上一篇    下一篇

RFID不确定数据管理技术

许 嘉,于 戈+,谷 峪,王艳秋   

  1. 东北大学 信息科学与工程学院,沈阳 110004
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-11-15 发布日期:2009-11-15
  • 通讯作者: 许 嘉

Uncertain Data Management Technologies in RFID

XU Jia, YU Ge+, GU Yu, WANG Yanqiu   

  1. School of Information Science and Engineering, Northeastern University, Shenyang 110004, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-11-15 Published:2009-11-15
  • Contact: XU Jia

摘要: 有关不确定数据管理的研究是当前国际数据库研究领域的一个热点。不确定性作为RFID系统的一个重要特征,贯穿于RFID应用的整个生命周期。RFID系统主要存在两类不确定性:一类是客观不确定性,即原始数据客观存在不完整和不准确,这是造成RFID系统数据不确定的最直接原因;另一类是主观不确定性,这是由于对漏读数据的填补、对位置信息的推测、对事件语义的抽取和对事件发生时间的估计而产生的不确定性。详细归纳了RFID系统中数据不确定性的来源,介绍了RFID不确定数据管理技术的研究现状,并指出了目前面临的挑战。

关键词: 无线射频识别技术, 不确定数据, 可能世界模型, 复杂事件处理, 普适计算

Abstract: The study on uncertain data management is one of the hot topics amongst the database domain all over the world. As an important feature of RFID (radio frequency identification) systems, uncertainty winds through the whole life cycle of RFID applications. In RFID systems, there are two kinds of uncertainty. Objective uncertainty is the immediate cause of uncertainty in RFID system which is due to the inaccuracy and incompletion of raw data. Subjective uncertainty is the result of filling missing data, inferring tag location, extracting event semantic and estimating event happening time. This paper summarizes the sources of data uncertainty in RFID system, makes a survey for the state of art in RFID uncertain data management, and finally points out challenges.

Key words: RFID technology, uncertain data, possible world model, complex event processing, pervasive computing

中图分类号: