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Radio frequency identification distance measurement or positioning system and method thereof

A radio frequency and radio frequency signal technology, applied in radio wave measurement systems, radio wave reflection/re-radiation, measurement devices, etc., can solve problems such as inaccurate positioning accuracy, improve ranging and positioning accuracy, and increase reliability. and stability, the effect of reducing the impact

Active Publication Date: 2014-04-02
北京中科微投资管理有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The technical problem to be solved by the present invention is to provide a radio frequency identification ranging or positioning system and its method, which solves the problem of inaccurate positioning accuracy of radio frequency technology for indoor passive positioning in the prior art

Method used

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  • Radio frequency identification distance measurement or positioning system and method thereof
  • Radio frequency identification distance measurement or positioning system and method thereof

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Experimental program
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Effect test

Embodiment 1

[0049] A radio frequency identification ranging system provided in an embodiment of the present invention includes a parameter setting module, a data reading module, a timing module and a data processing module; the parameter setting module is used to set the number of times for sending radio frequency signals, and the data reading module according to The number of times the radio frequency signal is sent, the reader reads the tag information, and the timing module is used to record the start time when the reader starts to read the tag information. According to the number of times the radio frequency signal is sent, after the reader reads the tag information, the recording ends Time, the data processing module calculates the distance between the tag and the reader according to the information read by the reader, the start time and the end time, and the parameter setting module is connected with the data reading module, the timing module and the data processing module respectivel...

Embodiment 2

[0068] A system for radio frequency identification ranging, including a parameter setting module, a data reading module, a data analysis module, a timing module and a data processing module; the parameter setting module is used to set the number of times to send radio frequency signals, and the data reading module The number of radio frequency signals, the reader reads the tag information, the data analysis module is used to count the number of tag information read by the reader, and the timing module is used to record the start time when the reader starts to read the tag information, according to the sent radio frequency The number of times of the signal, after the reader reads the tag information, record the end time, the data processing module calculates the distance between the tag and the reader according to the information, start time and end time of the tag read by the reader, and then according to the geometric The location calculation method calculates the position of ...

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Abstract

The invention discloses a radio frequency identification distance measurement or positioning system and a method thereof, and belongs to the technical field of radio frequency identification. The system comprises a parameter setting module, a data reading module, a time counting module, a data processing module and an information processing module. By the system, influence of change of obstacles or objects in a space on a radio frequency identification distance measurement or positioning result can be effectively reduced; under the condition that the complicity of the system is not increased, the distance measurement and positioning precision can be greatly improved; furthermore, by adopting a method for measuring counted time when a reader reads a label for many times, the influence of error of delay time of the system on the whole distance measurement and positioning function precision is reduced, and the reliability and the stability of the system are improved.

Description

technical field [0001] The invention belongs to the technical field of radio frequency identification, and in particular relates to a radio frequency identification ranging or positioning system and a method thereof. Background technique [0002] With the rapid take-off of the global economy, the rapid development of science and technology, and the popularity of automobiles and smart phones, wireless positioning technology is becoming more and more perfect and mature, and it is widely used in various fields and industries around the world, such as production, warehousing, logistics, and transportation. [0003] In terms of outdoor positioning, the development of satellite communication-based Global Positioning System (GPS) navigation system technology has been very mature. From the navigation system in the car to the self-service positioning and navigation services of personal mobile phones, more accurate positioning and navigation functions can be realized. The horizontal p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S13/74
Inventor 张学艳刘振宇朱坤顺张海英
Owner 北京中科微投资管理有限责任公司