A method and system for underground personnel positioning based on decision-prediction uwb

A technology of personnel positioning and personnel, which is applied in the field of UWB underground personnel positioning, can solve the problems of inability to meet the continuous and reliable requirements of positioning, and low positioning accuracy, so as to ensure continuity and reliability, improve efficiency, and accurate positioning data Effect

Active Publication Date: 2022-01-28
CCTEG CHINA COAL RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: in order to solve the problem that the existing positioning algorithm based on UWB positioning cannot meet the requirements of continuous and reliable positioning and the positioning accuracy is low when it is applied underground

Method used

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  • A method and system for underground personnel positioning based on decision-prediction uwb
  • A method and system for underground personnel positioning based on decision-prediction uwb
  • A method and system for underground personnel positioning based on decision-prediction uwb

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Embodiment 1

[0032] This embodiment provides a UWB-based downhole personnel positioning method based on decision-prediction, such as figure 2 As shown, TDOA positioning sub-stations are arranged at a set distance along one side of the roadway, and TWR positioning sub-stations are arranged at a set distance along the other side of the roadway, and underground personnel carry positioning cards with them;

[0033] Such as figure 1 As shown, the underground personnel positioning method of the present embodiment specifically includes:

[0034] S1: According to the TDOA algorithm, measure the first distance data from the positioning card carried by the underground personnel to the corresponding TDOA positioning substation;

[0035] S2: according to the TWR algorithm, measure the second distance data from the positioning card carried by the downhole personnel to the corresponding TWR positioning substation;

[0036] S3: According to the first distance data and the second distance data measured...

Embodiment 2

[0081] This embodiment provides a UWB-based downhole personnel positioning device based on decision-prediction, including:

[0082] The TDOA ranging module is used to measure the first distance data from the positioning card carried by underground personnel to the corresponding TDOA positioning substation according to the TDOA algorithm;

[0083] The TWR ranging module is used to measure the second distance data from the positioning card carried by underground personnel to the corresponding TWR positioning substation according to the TWR algorithm;

[0084] The decision module is used to determine the reliability distance data for inputting into the neural network for personnel position prediction through a pre-established decision tree according to the measured first distance data and second distance data, and the decision tree is based on The difference between the distance value of the first distance data and the second distance data and the location information of the corr...

Embodiment 3

[0098] This embodiment provides a UWB two-way positioning system for underground personnel based on decision-prediction. The TDOA positioning substations are arranged at a set distance along one side of the roadway, and the TWR positioning substations are arranged at a set distance along the other side of the roadway. station, the positioning card carried by the underground personnel, and the upper computer;

[0099] The TDOA positioning substation is provided with a TDOA ranging module, which is used to measure the first distance data from the positioning card carried by underground personnel to the corresponding TDOA positioning substation according to the TDOA algorithm;

[0100] The TWR positioning substation is provided with a TWR ranging module, which is used to measure the second distance data from the positioning card carried by the underground personnel to the corresponding TWR positioning substation according to the TWR algorithm;

[0101] The upper computer is provi...

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Abstract

The present application relates to a decision-prediction-based UWB underground personnel positioning method and system. A set of distance data is respectively measured according to the TDOA algorithm and the TWR algorithm, and the measured distance data is analyzed through a decision tree to determine the reliability distance. Then, the reliability distance data is used as input to predict the location information of underground personnel through a neural network. By adopting the decision-prediction dual mechanism, the present invention ensures the accuracy and integrity of the positioning data, ensures the continuity and reliability of the positioning data, and avoids that the wrong positioning data affects the positioning accuracy.

Description

technical field [0001] The present application belongs to the technical field of ultra-wideband communication, and in particular relates to underground personnel positioning in coal mines, in particular to a decision-prediction-based UWB underground personnel positioning method and system. Background technique [0002] According to the requirements of coal mine accident rescue and prevention, the underground personnel positioning system, as one of the main safety systems in coal mines, plays a very important role in ensuring the safety of underground personnel in production and emergency rescue. At present, with the continuous update and iteration of technology, radio frequency technology (RFID), WIFI technology, and Bluetooth technology positioning methods are gradually eliminated, and ultra-wideband technology (UWB) has good applicability and practicability. [0003] Ultra Wide Band (UWB) technology is a carrier-free communication technology, which uses extremely narrow pu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W64/00G01S5/02G06N3/08E21F17/18
CPCH04W64/006G01S5/0257E21F17/18G06N3/08
Inventor 李起伟陈伟陈浩邵甜甜王子龙韩阳孟庆勇苗可彬
Owner CCTEG CHINA COAL RES INST
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