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Downhole coal mine personnel real-time radio positioning method

A wireless positioning and positioning method technology, which is applied in satellite radio beacon positioning systems, positioning, radio wave measurement systems, etc., can solve problems such as cable corrosion, poor reliability, and difficult maintenance, and achieve the effects of improving management levels and reducing losses

Inactive Publication Date: 2008-05-28
SHANGHAI UNIV +1
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  • Summary
  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

It is very difficult to install various sensors and lay out cables. Even if the information is transmitted by cables, the cables will be severely corroded due to the wet ground underground. The reliability of the entire system is poor and maintenance is difficult.
Since the positioning area is underground, the most famous and accurate positioning methods such as GPS (Global Positioning System, Global Positioning System) are useless

Method used

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  • Downhole coal mine personnel real-time radio positioning method
  • Downhole coal mine personnel real-time radio positioning method
  • Downhole coal mine personnel real-time radio positioning method

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Embodiment Construction

[0020] A preferred embodiment of the present invention is described in detail as follows in conjunction with accompanying drawing:

[0021] Referring to Fig. 1, the real-time wireless positioning method for underground coal mine personnel is as follows: the wireless sensor routing network system adopted is composed of (1) mobile nodes, (2) wireless trunk lines, (3) fixed wireless nodes, and (4) above-ground management center four Partial composition. The mobile node and the beacon node perform information interaction, use the location information of the beacon node recorded in the data packet, run the positioning algorithm on the mobile node, realize distributed positioning, and load the positioning position into the data packet and transmit it to the well management through the wireless backbone Center, all transmission processes are carried out wirelessly. The main function of the management center is to receive the location information of the mobile node and store it in it...

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Abstract

The invention relates to a real time wireless positioning method for underground coal mine workers, which comprises a distributing-type real time positioning scheme, an arranging method for fixing beacon nodes inside coal mine channels, and a converting method between a RSSI value and an actual distance. The invention can be used widely for various coal mine monitoring systems, tracks and monitors for moving targets as the underground workers can be implemented conveniently, thereby safe production can be guaranteed, in particular after accidents occur, searches and rescues with pertinentinge for the underground workers are available according to historical data which is stored before the accidents occur, and loss due to the accidents can be lowered. Simultaneously the invention is beneficial for coal mine managers to adjust work and thereby monitoring managing level and working efficiency of whole coal mines can be increased.

Description

technical field [0001] The invention belongs to the technical field of wireless sensor network positioning, in particular to a method for real-time wireless positioning of mobile personnel for an underground coal mine environment. Background technique [0002] In recent years, coal mine explosions and landslides have occurred frequently. How to ensure the safety of mines and miners working in coal mines has become more and more important. Basic research on coal mine gas disasters and underground monitoring systems has become It is very necessary, and our country has also increased investment in science and technology in this area, and strives to make breakthroughs. [0003] The underground geological conditions of coal mines in my country are very complicated. The length of mine roadways can reach tens of kilometers, the working environment is harsh, and the operating points are scattered. It is very difficult to install various sensors and lay out cables. Even if the infor...

Claims

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Application Information

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IPC IPC(8): G01S5/02H04Q7/38G01S19/00
Inventor 施惠昌沈明华赵佐平田金鹏
Owner SHANGHAI UNIV
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