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Method for target positioning by utilizing wireless energy intensity

A wireless energy and target positioning technology, applied in radio wave measurement systems, positioning, measuring devices, etc., can solve the problem of inaccurate acquisition of mobile nodes to be measured, improve positioning and tracking accuracy, ensure reliability, and have a wide range of applications Effect

Inactive Publication Date: 2008-12-31
陈建峰
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] The present invention provides a method for target positioning using wireless energy intensity, so as to overcome the problem that the position of the mobile node to be measured cannot be accurately obtained in the prior art

Method used

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  • Method for target positioning by utilizing wireless energy intensity
  • Method for target positioning by utilizing wireless energy intensity
  • Method for target positioning by utilizing wireless energy intensity

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Embodiment Construction

[0024] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0025] see figure 1 . Among them, black circles represent mobile nodes, hollow circles represent fixed nodes, and double arrows represent wireless communication. The basic components of the positioning system are: (1) no less than 3 fixed nodes, each fixed node has wireless receiving and transmitting functions, and can communicate with each other through a certain protocol; the geographical location of these fixed nodes is determined It is known, or can be obtained in some way, that the receiving characteristics of its receiving antenna or receiver are isotropic. The performance of each fixed node is consistent, or can be made consistent through a certain calibration method. (2) One or more mobile nodes to be tested have wireless transmission function, and their transmission frequency and signal protocol are consistent with those of fixed nodes. Its receiving ant...

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Abstract

The invention belongs to a moving target positioning method, in particular to a method for carrying out the target positioning by utilizing the wireless energy intensity. The method can overcome the problem that the position of the moving node to be measured can not be accurately obtained in the prior art. The technical proposal provided by the invention is as follows: the method for carrying out the target positioning by utilizing the wireless energy intensity is defined as follows: the moving node can change the power of the transmitted wireless energy through the program controlled mode during the moving process in an application system with the RSSI technology, the method adopts a plurality of transmitting power rotation transmitting modes to allow receivers at various fixed nodes to obtain a plurality of sets of energy intensity values, and the positioning is carried out by obtaining a great amount of distance information according to the relationship between the signal intensities and the distances. Compared with the prior art, the method has the advantages that: 1. the realization is convenient; 2. the reliability of a positioning system is improved; 3. the positioning precision and the tracking precision are improved; 4. and the range of applications is wide.

Description

Technical field: [0001] The invention belongs to a method for locating a moving target, in particular to a method for locating a target by using wireless energy intensity. Background technique: [0002] At this stage, various industrial safety issues, such as coal mine safety issues, have aroused widespread concern from all walks of life. How to improve the safety factor, conduct comprehensive monitoring of major hidden dangers such as fire, gas, and explosion, and conduct real-time positioning and tracking of staff working in industrial environments are problems that major factories, mines, and industrial enterprises need to solve urgently. [0003] Taking the coal mine underground environment as an example, due to the particularity of the environment, it is impossible to use the GPS positioning system to realize the positioning and tracking of personnel; the positioning system constructed by using radio frequency RFID technology is currently being tried in some places, and...

Claims

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Application Information

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IPC IPC(8): G01S5/02G01S5/18G01S5/04
Inventor 陈建峰向磊刘波霞梁敏
Owner 陈建峰
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