多层次RFID数据流上复杂事件检测

Detection of complex event over RFID data streams with multi-levels

针对多粒度RFID数据流复杂事件检测存在的问题,研究多粒度RFID数据流(如物品级、箱子级、托盘级)上复杂事件检测问题.提出了不同层次目标间关系的编码方案,并在此编码基础上提出了相应的复杂事件检测算法.使用编码方法表示不同层次RFID对象的关系及状态变化.首先给出了事件模型和动机实例;然后详细阐述了编码方法和复杂事件检测算法.实验结果表明提出的方法是可行和有效的.

For the problems that exist in event detection over multi-levels of RFID （radio frequency identification） data streams, complex event processing over multi-levels （item-level, case level, pallet level） of RFID event streams were investigated. Encoding schemas between different levels of RFID objects were proposed to maintain relationship and state transfer between the encoding objects. Corresponding event detection algorithms based on encoding schemas were presented. Firstly, the event model and motivation example were illustrated. Then the encoding schemas and event detection algorithms were explained in detail. At last, extensive experiments were carried out to verify the proposed algorithms. The experimental results illustrate the soundness and effectiveness of proposed methods.