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

Label identification method and system based on label code

A label identification and label technology, applied in the field of label identification method and system based on label code, can solve the problems of inability to dynamically adjust the query prefix, long query delay, low recognition rate, etc., so as to reduce the recognition delay and improve the utilization efficiency. , the effect of reducing the total number of time slots

Inactive Publication Date: 2021-04-23
HANGZHOU HOUBO TECH CO LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When the backoff algorithm faces a scene with a large number of tags, the recognition rate is low and the delay is large; because the tree algorithm uses a fixed query prefix, it cannot dynamically adjust the query prefix, and the query delay is large
At present, there is no technical solution to dynamically adjust the frame length and execute the back-off algorithm in segments to realize tag recognition

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 identification method and system based on label code
  • Label identification method and system based on label code
  • Label identification method and system based on label code

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach

[0047] An embodiment of a label identification method based on a label code, the round variable i, the number of bits occupied by the new label prefix in different rounds is recorded as n i , the number of collision slots is represented by the variable m, and the loop variable j, the flow chart of the steps is as follows figure 2 shown, including the following steps:

[0048] S01. Initially set the number of bits n occupied by the new label prefix of the frame according to the application scenario i , set the initial value m of the number of collision slots 0 =1, round variable i=1, loop variable j=1;

[0049] S02. The reader adopts the number of bits n occupied by the new tag prefix i A frame scan tag of the corresponding length;

[0050] S03. The tag calculates the number of backoff slots according to the bits corresponding to the added tag prefix and responds;

[0051] S04. The reader receives the tag response;

[0052] S05. Obtain the tags in the successful time slo...

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 identification method and system based on a label code. The method comprises the following steps: a reader scans a label by adopting a frame with the length corresponding to the bit number occupied by a newly added label prefix; the label calculates the number of back-off time slots according to the bits corresponding to the newly added label prefixes and responds to the back-off time slots; the reader receives the label response; the label is acquired in a successful time slot; whether collision time slots exist or not is judged, if yes, the number of the collision time slots is calculated and a label prefix is added to the label prefix corresponding to each collision time slot; and the steps are repeatedly executed until no collision time slot exists. According to the invention, the problem of how to dynamically adjust the frame length and execute the back-off algorithm in a segmented manner to realize label identification is solved.

Description

technical field [0001] The invention belongs to the technical field of label identification, in particular to a label identification method and system based on a label code. Background technique [0002] Tag recognition technology is a non-contact target object recognition and tracking technology, which is widely used in many fields such as life and production. Tag recognition technology requires an effective tag anti-collision algorithm to quickly identify tags. The existing anti-collision algorithms are mainly backoff algorithm and tree algorithm. [0003] When the backoff algorithm faces a scene with a large number of tags, the recognition rate is low and the delay is large; because the tree algorithm uses a fixed query prefix, it cannot dynamically adjust the query prefix, and the query delay is relatively large. At present, there is no technical solution to dynamically adjust the frame length and perform a backoff algorithm in segments to realize tag recognition. To ...

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 Applications(China)
IPC IPC(8): G06K7/10
CPCG06K7/10029
Inventor 严军荣卢玉龙
Owner HANGZHOU HOUBO TECH CO LTD
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