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System and method for distributed complex event detection under RFID (Radio Frequency Identification Devices) equipment network environment

A network environment and complex event technology, applied in the field of complex event specification for RFID data, can solve the problems of limited processing rules and unsupported complex event detection, etc., and achieve the effect of reducing requirements and flexible deployment

Inactive Publication Date: 2010-11-10
DALIAN MARITIME UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

From the perspective of event processing, the descriptive processing rules used by these RFID systems are limited, such as only expressing the filtering of RFID atomic events and simple combinations between events, and they do not support composite events in a distributed environment detection

Method used

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  • System and method for distributed complex event detection under RFID (Radio Frequency Identification Devices) equipment network environment
  • System and method for distributed complex event detection under RFID (Radio Frequency Identification Devices) equipment network environment
  • System and method for distributed complex event detection under RFID (Radio Frequency Identification Devices) equipment network environment

Examples

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Effect test

no. 1 approach

[0076] The first preferred embodiment of the present invention takes a supermarket equipped with RFID system as an example to detect theft incidents. There is an RFID tag hidden on every commodity in this supermarket that is not easy to find. Since the ID number of the tag is unique, when the customer takes a product from the shelf, the reader on the shelf will detect this simple event, and the product is in a state of waiting for payment; when the customer makes the payment, the payment counter The reader at the exit detects the product again, and the product is in a paid state after the payment is successful; when the customer leaves the supermarket with the product, the reader at the exit will read the product ID to confirm whether the product has been paid for. Status changed to "Take out of supermarket". The theft accident can be regarded as a compound event logically including three simple events. The first two events are: "reader1 detects that some goods are taken out ...

no. 2 approach

[0090] The second preferred embodiment of the present invention takes the acquisition of the quantity of goods passing through the warehouse entrance within a certain time interval as an example. In the process of warehouse management, administrators usually need to query the total number of goods passing through multiple entrances within a certain fixed time interval. Suppose there is a warehouse with two goods entrances, reader1 and reader2 are readers installed at the two entrances of the warehouse respectively. The system defines that the event data read by reader1 represents an event instance of the E1 event type, and the event data read by reader2 represents an event instance of the E2 event type. The warehouse administrator needs to check the quantity of incoming goods in the warehouse within 10 minutes. According to the compound event construction method defined in this system, the compound event to be detected can be expressed as:

[0091] E (number of commodities) ...

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Abstract

The invention discloses a system and a method for distributed complex event detection under an RFID (Radio Frequency Identification Devices) equipment network environment. The system comprises a server side, a client side, an RFID recognizer and a label which can be recognized by the recognizer, wherein the server side comprises a used input processing unit, an event analyzing unit, a task queue generating unit, a detection task sharing unit and a task monitoring unit; the client side comprises a task acquisition unit, a task analyzing unit, an event generating unit, an event filtering unit, a task processing unit and a task output unit. Compound event detection under the RFID equipment network environment is realized through event filtering, compound event detection and the event processing of an event aggregate function. The system supports distributed environments, multiple event construction symbols, non-spontaneous events and aggregated events.

Description

technical field [0001] The invention relates to a composite event detection system and method aimed at RFID applications, more specifically to the technology, method and realization of composite event specification for RFID data in a distributed RFID device network environment. Background technique [0002] Radio Frequency Identification (RFID for short) is a non-contact automatic identification technology. From the 1970s to the 1980s, the U.S. government transferred RFID technology to civilian use on a large scale through the Los Alamos Science Laboratory, and it was widely used in animal tracking and management. Since the 1990s, the volume of RFID equipment has become smaller and lower, and the cost has become lower and lower. The application of RFID has expanded to many fields such as logistics, supply chain, retail, food, medicine, and transportation. The combination of RFID equipment network and IP network will realize the global Internet of Things. [0003] However, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L12/26G06K7/00
Inventor 陈荣孙向伟宋英杰周兴强牛丽娟邓武杨红杜振军
Owner DALIAN MARITIME UNIVERSITY
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