Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

RFID data cleaning method based on lightweight event detection

A data cleaning and event detection technology, applied in the field of RFID data cleaning, can solve the problems of lack of front-end RFID data cleaning, lack of effective context information, difficult deployment, etc., and achieve accurate and reliable results of data cleaning

Active Publication Date: 2022-04-08
ZHEJIANG INT STUDIES UNIV
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the limitation of application scenarios, uncertain information such as repeated reading and writing, misreading and missing reading of RFID tags will be generated in the process of RFID deployment and implementation. The lack of timely and effective front-end RFID data cleaning leads to low efficiency of background business systems
One type of algorithm for data cleaning at the front end of RFID applications is to use a probability model to fill in missing RFID data in a certain time interval, but this method requires a large amount of calculation; the other type is to use the cross-coverage method of RFID readers for verification. The cost of application deployment is high, and repeated reading and cross reading also need to rely on background middleware, and the scalability is not good
The existing RFID data cleaning algorithm lacks effective context information, does not use tag movement path information for cross-validation, and is not easy to implement and deploy. It is necessary to develop an easy-to-deploy and low-cost RFID data cleaning algorithm in the front-end of RFID applications

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • RFID data cleaning method based on lightweight event detection
  • RFID data cleaning method based on lightweight event detection
  • RFID data cleaning method based on lightweight event detection

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] Event processing (Event Processing) is a real-time data analysis technology that has been widely used in the Internet of Things, workflow and other fields. RFID event detection refers to the process of combining simple or complex RFID events into semantically more complex events through association. An RFID simple event refers to an action in which a RIFD tag is read by a reader. It is an indivisible event (atomic event), represented by a triple (RID, OID, timestamp), where RID is the RFID reader identifier ( event type identifier), OID is the object identifier, and timestamp is the time when the reader reads and writes the tag. Raw events in the RFID data stream use a lowercase letter e i Indicates that the event type (that is, the RFID reader identification) is represented by capital letters A, B, and C, etc. Event detection operators include AND operator, OR operator, NOT operator, and SEQ sequence operator (events appear in sequence), which are used to define comp...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method for cleaning RFID data based on light-weight event detection. The method formalizes and defines the travel path of an RFID tag in an application scene as some light-weight events, and constructs an The rule base of read-write path and missed-read tag path is used for real-time data cleaning at the middleware layer of the RFID application system. The present invention fully considers the deployment and implementation of readers in RFID application scenarios, and does not need to set too many reader positions from the hardware level. Data cleaning rules can be added, deleted and modified according to application scenarios, and any event description language can be used for the definition of rules. . The process of data cleaning is located in the middleware layer of the application. It is a lightweight operation and will not have a great impact on system performance. The processing of the original data stream is more in line with the context, and the data cleaning results are more accurate and reliable.

Description

technical field [0001] The invention belongs to the field of RFID data cleaning, in particular to a method for cleaning RFID data based on lightweight event detection. Background technique [0002] Object identification and tracking using radio frequency identification technology (RFID) is the most popular technical solution in IoT applications. Different application scenarios use different types of RFID tags and middleware for data transmission and data management. Due to the limitation of application scenarios, uncertain information such as repeated reading and writing, misreading and missing reading of RFID tags will be generated in the process of RFID deployment and implementation. The lack of timely and effective front-end RFID data cleaning leads to low efficiency of the background business system. One type of algorithm for data cleaning at the front end of RFID applications is to use a probability model to fill in missing RFID data in a certain time interval, but thi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G06F16/215G06F9/50G06F9/54G06K7/10
CPCG06F16/215G06F9/5022G06F9/542G06K7/10009
Inventor 娄颖安晶彭商濂方美玉刘贤锋
Owner ZHEJIANG INT STUDIES UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com