Complex Event Processing in RFID Middleware: A Three Layer Perspective
Wenhui Hu
Wei Ye
Yu Huang
Shikun Zhang
Nat. Eng. Res. Center for Software Eng., Peking Univ., Beijing;
Abstract
In this paper, we introduce a mechanism of using complex event processing technology to process high level business logic of RFID application. Based on our RFID middleware prototype PKU RFID edge server (PRES), we present a three-layer perspective for complex event processing in RFID middleware according to principle of "Separation of Concerns". We propose Petri net based models for each layer: logic structure, temporal constraint and event detection. Event operators are reconsidered based on net structure and given a universal definition, which server as a solid guidance for implementation of complex event processing engine in RFID middleware.
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