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Mine ultra-wide band locating method and system based on non-line-of-sight inhibition

A positioning method and ultra-wideband technology, applied in transmission systems, diversity/multi-antenna systems, transmission monitoring, etc., can solve the problems of large volume, sensitivity to multipath effects, and high power consumption

Inactive Publication Date: 2012-12-19
CHINA UNIV OF MINING & TECH (BEIJING)
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solve the problems of poor anti-interference ability, low positioning accuracy, poor signal penetration, sensitivity to multipath effects, high power consumption, and large size of the current underground personnel positioning system

Method used

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  • Mine ultra-wide band locating method and system based on non-line-of-sight inhibition
  • Mine ultra-wide band locating method and system based on non-line-of-sight inhibition
  • Mine ultra-wide band locating method and system based on non-line-of-sight inhibition

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Embodiment Construction

[0089] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, and the embodiments should not be regarded as limiting the application scope of the present invention.

[0090] figure 1 It is a schematic diagram of the ultra-wideband positioning system for underground coal mines. Such as figure 1 As shown, the coal mine underground ultra-broadband positioning system of the present invention includes an uphole part and an underground part. The uphole part includes: ground monitoring terminal 2, positioning server 1, central switch 5, dynamic host configuration protocol server 3, upper terminal 4; the downhole part includes: intrinsically safe gateway 6, intrinsically safe DC power supply 10, intrinsically safe wireless A relay station 7 , an intrinsically safe reference point terminal 8 , and an intrinsically safe positioning terminal 9 .

[0091] Combine below figure 1 Describe in detail the working proc...

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Abstract

The invention discloses a coal mine under-well ultra-wide band locating method and a coal mine under-well ultra-wide band locating system. The method comprises the following steps: by adopting a RAKE receiver technology, collecting multipath components in signals, and weighing the multipath components; performing non-line-of-sight identification on the signals by utilizing the constructed identification parameters, performing data reconstruction on the non-line-of-sight signals, and performing location calculation by adopting a Taylor sequence expansion method and utilizing the reconstructed data and line-of-sight signals. The system comprises a well-surface part and an under-well part. The well-surface part comprises a ground monitor terminal, a locating server, a central switch, a dynamic host configuration protocol server, and an upper layer terminal; the under-well part comprises an intrinsically safe gateway, an intrinsically safe direct current power supply, an intrinsically safe wireless relay station, an intrinsically safe reference point terminal and an intrinsically safe locating terminal. The ultra-wide band locating method and the ultra-wide band locating system are simple in structure, accurate in positioning and strong in anti-jamming ability, can effectively inhibit multipath effect and non-line-of-sight effect, and meet use requirements of the mine.

Description

technical field [0001] The invention relates to a mining personnel positioning system and method, in particular to an intrinsically safe mining ultra-wideband underground personnel positioning system and method. Background technique [0002] Coal is an important energy source in our country, accounting for about 70% of primary energy, and more than 95% of coal mines in our country are mined underground. Due to the relatively low level of science and technology and poor management, coal mining has always been a high-risk industry. Frequent mining accidents have seriously restricted the healthy development of my country's coal industry. The loss of life and property caused by it and the resulting social impact are also immeasurable. The mine personnel positioning system is an important guarantee for mine safety production and a necessary means of emergency rescue. It is of great significance to improve production efficiency, ensure the safety of underground personnel, and time...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/7115H04B7/08H04B17/00H04W4/04H04W64/00
Inventor 田子建明艳杰
Owner CHINA UNIV OF MINING & TECH (BEIJING)
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