项目名称: 面向位置服务的不确定性RFID时空信息查询技术的研究
项目编号: No.61272180
项目类型: 面上项目
立项/批准年度: 2013
项目学科: 自动化技术、计算机技术
项目作者: 张天成
作者单位: 东北大学
项目金额: 80万元
中文摘要: 随着物联网等技术的发展,作为关键的支撑技术之一,RFID受到国内外学术界和产业界的广泛关注。位置服务是RFID技术最有价值的应用之一,具有广阔的应用前景,但RFID本身并不是一种精确的定位设备,由于射频干扰、对象移动以及监控场景等原因,形成了大量不确定性时空信息流;同时,RFID空间中基于位置服务的要求日益复杂和多样化,使得RFID时空查询面临许多新的挑战。目前针对不确定性RFID时空信息建模、时空查询与优化技术的研究较为缺乏。本课题结合RFID数据的特点,面向深层次的RFID位置服务,深入研究RFID时空信息的综合查询技术,主要包括:不确定性RFID时空信息建模,移动对象轨迹查询、轨迹分析、k-NN查询、监控对象动态小组查询和空间包含关系查询,并结合以上技术,实现一个不确定性RFID时空查询原型系统。该成果将对RFID空间内的位置服务提供有效的技术支持。
中文关键词: RFID;位置服务;不确定数据;时空查询;包含关系
英文摘要: With the development of Internet of Things(IOT), RFID arouses a lot attention in the field of industry and academia as the key technology. AS one of the most valuable applications in RFID , location-based services have a broad application field. For the reason of radio-frequency interference, object movement and scene monitoring, RFID could not ensure accurate positioning. Therefore, lots of uncertain spatial-temporal information stream would be generated. Since demands for RFID location-based services are much more complex and various, there would be a great challenge for the spatial-temporal query in RFID. At present, the studies are relatively lack about the RFID spatial-temporal information model, spatial-temporal query and optimization. To provide the deep-seated RFID location-based services, this project focuses on the general query technology for the RFID spatial-temporal information according to the characteristic of RFID data. They include: uncertain RFID spatial-temporal information model, trajectory query for the moving objects, k-NN query, dynamical group query for the monitoring objects and spatial inclusion-relation query. Meanwhile, a prototype system for the uncertain RFID spatial-temporal information query would be designed and developed based on the above technologies. The effort would provide
英文关键词: RFID;Location-Based Services;Uncertain Data;Spatio-Temporal Query;Containment Relationship