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

Signal processing method and RFID reader

A signal processing and reader-writer technology, applied in the field of radio frequency identification, can solve the problems of high-amplitude modulation depth, poor PR-ASK modulation signal quality, and large hardware overhead, so as to reduce signal bandwidth occupation, improve modulation quality, The effect of reducing hardware overhead

Active Publication Date: 2018-03-30
RUIJIE NETWORKS CO LTD
View PDF3 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

One is to realize the PR-ASK modulation signal through the analog circuit mixer, the amplitude of the PR-ASK modulation signal generated by this method passes through zero, has a high amplitude modulation depth, and the quality of the PR-ASK modulation signal is not good
Another method is to generate PR-ASK modulation signals by splicing waveform templates. The PR-ASK modulation signals generated by this method are ideal, but it is necessary to store PR-ASK waveform templates at various transmission rates, and the hardware overhead is large.
There is no PR-ASK modulation signal generation method, and in the case of small hardware overhead, realize the PR-ASK RF signal that conforms to the ISO / IEC 18000-6C standard and has an ideal waveform

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
  • Signal processing method and RFID reader
  • Signal processing method and RFID reader
  • Signal processing method and RFID reader

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] The signal processing method and the RFID reader / writer provided by the embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0024] The term "and / or" in this article is just an association relationship describing associated objects, which means that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist simultaneously, and there exists alone B these three situations.

[0025] The terms "first" and "second" in the description and drawings of the present invention are used to distinguish different objects, or to distinguish different processes for the same object, rather than to describe a specific sequence of objects. For example, the first indication information and the second indication information are used to distinguish different indication information, rather than describing a specific order of the indication information.

[0026] In addition, the terms "inclu...

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 provides a signal processing method and an RFID reader, relates to the field of radio frequency identification in the Internet of things, and can realize generation of PR-ASK radio frequency signals which conform to the ISO / IEC 18000-6C standard and are ideal in signal quality on the basis of reducing the hardware overhead as far as possible. The signal processing method comprises the steps of receiving a binary original data stream sent by a controller; performing pulse interval encoding (PIE) on the original data stream to obtain a PIE encoded data stream; performing duobinaryencoding on the PIE encoded data stream to obtain a duobinary encoded data stream; performing n-times data interpolation on the duobinary encoded data stream, performing filtering through raised cosine roll-off modeling filter to obtain a first modulation signal; performing waveform adjustment on the first modulation signal by using a cosine waveform template to obtain a second modulation signal;and enabling the second modulation signal to pass through a mixer to obtain a phase reversal amplitude shift keying (PR-ASK) radio frequency signal.

Description

technical field [0001] The present invention relates to the field of radio frequency identification in the Internet of Things, in particular to a signal processing method and a radio frequency identification (Radio Frequency Identification, RFID) reader. Background technique [0002] Radio Frequency Identification (RFID) technology uses electromagnetic waves for wireless communication. It can identify specific targets and read and write related data through radio signals without the need to establish mechanical or optical contact between the identification system and specific targets. The RFID system includes a radio frequency tag and an RFID reader, using electromagnetic waves to make the radio frequency tag automatically recognized by the RFID reader within a certain distance. The biggest advantage of the RFID system is that the identification process does not require manual intervention, it can complete multi-objective remote automatic management, the data transmission is...

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): G06K7/10G06K17/00
CPCG06K7/10297G06K17/00
Inventor 林坤林淦斌
Owner RUIJIE NETWORKS 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