Label activity detecting method and device in radio frequency identification (RFID) system as well as reader

A radio frequency identification and reader technology, applied in the field of radio frequency identification, can solve the problems of passive RFID reading and writing distance, high cost, low price, etc.

Inactive Publication Date: 2011-06-01
SIEMENS AG
View PDF5 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, passive RFID has a short reading and writing distance, and the price is low; active RFID can provide a longer reading and writing distance, but it needs battery power, and the cost is high, which is suitable for long-distance reading and writing.

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
  • Label activity detecting method and device in radio frequency identification (RFID) system as well as reader
  • Label activity detecting method and device in radio frequency identification (RFID) system as well as reader
  • Label activity detecting method and device in radio frequency identification (RFID) system as well as reader

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0035] The embodiment of the present invention proposes a tag activity detection method and device in an RFID system, which uses the received signal strength indication envelope (RSSI Envelop, Received Signal Strength Indication) left by a tag when it passes through the readable area of ​​the reader. Envelop) to determine various labeling activities for that label. Among them, the tag activity is used to indicate the status of the tag movement, which may include: tag moving direction, tag moving speed, whether the tag is moving or still, the number of tag moves, the distance between the tag moving route and the reader, the association between the tag and the package, etc. Either or any combin...

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 label activity detecting method in a radio frequency identification (RFID) system, which comprises the following steps of: establishing a label data log for at least one label; and when the activity of a label is to be detected, confirming the RSSI (Received Signal Strength Indicator) envelope of the label by inquiring label data which is relevant to the label in the established label data log and confirming the activity of the label according to the confirmed RSSI envelope. The embodiment of the invention also provides a label activity detecting device in the RFID system and a reader embedded with the device. By adopting the method, device and reader provided by the embodiment of the invention, the RFID system can detect the activity of the label so as to be beneficial for the RFID system to expand various applications.

Description

technical field [0001] The present invention relates to the technical field of radio frequency identification (RFID, Radio Frequency Identification), in particular to a tag activity (Tag Activity) detection method, device and reader in an RFID system. Background technique [0002] Radio Frequency Identification (RFID, Radio Frequency Identification) technology is a non-contact automatic identification technology, commonly known as electronic tags, which automatically identify target objects and obtain relevant data through radio frequency signals. The identification work does not require manual intervention and can work in various harsh environments. environment. RFID technology can identify high-speed moving objects and can identify multiple tags at the same time, and the operation is fast and convenient. [0003] An RFID system is a wireless system for controlling, detecting and tracking objects, which includes the following basic components: [0004] 1. Tags, which cons...

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
IPC IPC(8): G06K7/00
Inventor 邓晓东喻丹袁勇
Owner SIEMENS AG
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap