Method for accurately locating personnel in coal mine

A technology for accurate positioning and personnel, which is applied in the field of accurate positioning of underground personnel in coal mines. It can solve the problems of inability to use GPS, inability to calculate power loss to determine relative distance, etc., to achieve real-time performance, ensure work safety, and have strong operability.

Active Publication Date: 2012-10-10
TAIYUAN UNIV OF TECH +2
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AI Technical Summary

Problems solved by technology

The mobile phone positioning above the ground is realized through the joint positioning of the base station and GPS, but GPS cannot be used underground, and the formula of distance and power loss in free space The power loss caused by factors such as the roadway wall in the complex environment of the underground makes this formula unable to determine the relative distance through power loss calculation

Method used

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Embodiment Construction

[0010] Preferred embodiments of the present invention will be described in more detail below.

[0011] , Install the base station underground, the distance between the two base stations is a base station coverage radius, one signal source is received by two base stations, forming seamless coverage, there is no blind spot, the distance between the two base stations is ≤300m, and the distance between the two base stations is ≤300m. The number is determined according to the length of the roadway and the distance between the two base stations, so that the base station can cover the entire underground roadway. A base station is placed at each intersection of the roadway. The base station determines its own position coordinates when it is erected. Numbering in sequence, respectively 1, 2, 3..., a signal communicates with only one base station at a time, set odd base stations to start working at 0 seconds, even base stations start working at 10 seconds, and odd base stations stop wo...

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Abstract

A method for accurately locating personnel in a coal mine belongs to the technical field of safety in the coal mine and is characterized in that the technical scheme of the method includes accurately locating the personnel in the coal mine by measuring energy loss of signals through the TD-SCDMA (time division-synchronization code division multiple access) network. The method not only can quickly accurately locate the personnel in the coal mine in real time, but also can guarantee that the location of the personnel can be tracked at any time, data can be matched by a computer, and convenience, practicality and high operability are realized. Since all operations are carried out by the computer, even green hands can operate.

Description

technical field [0001] The invention relates to a method for accurately locating underground personnel in coal mines, which belongs to the field of underground safety in coal mines, and relates to a technical scheme for accurately locating the positions of underground personnel by measuring energy loss of signals through a TD-SCDMA network. Background technique [0002] The safety of coal mine personnel has always been the most concerned issue in coal mine safety production. After the safety accidents over the years, the rescue of underground personnel is the top priority after the accident, and the positioning of underground personnel is the top priority in rescue work. Heavy. As stated in previous mine disaster reports, once a mine disaster occurs, if the underground personnel cannot be rescued within 48 hours, the chance of survival is almost zero. It can be seen that fast and accurate positioning is the key to the rescue of underground personnel. At present, there are m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W64/00
CPCY02D30/70
Inventor 乔铁柱赵弼龙陈昕王峰满壮郑洪强
Owner TAIYUAN UNIV OF TECH
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