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Chain-shaped large-space time service positioning network system for underground coal mine

A technology of timing positioning and network system, applied in the field of timing positioning network system, can solve problems such as high cost and time synchronization of positioning equipment, and achieve the effects of improving positioning accuracy, reducing data conflict, and improving data transmission efficiency

Active Publication Date: 2022-06-03
XUZHOU KERUI MINING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

WiFi and UWB are expensive, but have good anti-interference and accurate positioning, but a difficult problem for them is the time synchronization of positioning devices

Method used

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  • Chain-shaped large-space time service positioning network system for underground coal mine
  • Chain-shaped large-space time service positioning network system for underground coal mine
  • Chain-shaped large-space time service positioning network system for underground coal mine

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and cannot be used to limit the protection scope of the present invention.

[0027] refer to figure 1 , the present invention provides a coal mine underground chain-shaped large space timing and positioning network system, which is used to locate the terminal to be located in the underground tunnel of the target coal mine, including a mining switch, a mining gateway, a mining computer, and a positioning terminal, wherein The mining switch and the mining gateway are connected by optical fibers, and the mining gateway and the mining computer are connected by a network cable. The hardware infrastructure is based on the underground communication ring network of the coal mine. The ring network communication equipment above the base station level is: mining switche...

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PUM

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Abstract

The invention discloses a time service positioning network system for an underground chain-shaped large space of a coal mine, which is based on an ad hoc network base station which is linearly deployed in the underground chain-shaped large space of the coal mine, and adopts a base station level network internal time synchronization method which takes optical fiber time service as a main part and takes satellite time service as an auxiliary part. A time service positioning network system with a unified time reference in an ad hoc network base station is constructed, and through network construction, network stabilization and network application, by means of a base station level network internal clock synchronization method, a base station level network time reference is unified, and the network application positioning precision is improved; on the basis of an original underground communication ring network, a time service positioning network system suitable for an underground coal mine is integrated, and the network applicability is expanded.

Description

technical field [0001] The invention relates to a timing and positioning network system, in particular to a chain-shaped large space timing and positioning network system in a coal mine. Background technique [0002] In the timing and positioning network system, the two functional parts of timing and positioning complement each other. Timing can provide a sufficiently accurate time reference for positioning to improve its accuracy. Positioning is also an application performance of timing. [0003] The working environment of coal mines is harsh and the geological conditions are complex and changeable. The mine tunnels are long and staggered, and the working areas of miners are scattered and extensive. In addition, some coal materials, mine trucks, equipment, etc. need to know the location at all times. is crucial. [0004] At present, some independent positioning technologies and some combination of positioning technologies used in coal mines have their defects and limitatio...

Claims

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Application Information

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IPC IPC(8): H04W56/00H04W64/00H04W84/18
CPCH04W56/001H04W64/00H04W84/18Y02D30/70
Inventor 张传生韩链锋王曙东刘东润刘鑫顾对芳王涛王立兵刘年胜王传松
Owner XUZHOU KERUI MINING TECH CO LTD
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