Underground people positioning method based on visible light communication technology

A technology of visible light communication and personnel positioning, which is applied in the field of real-time positioning of underground personnel, which can solve the problems of wireless signal attenuation and inability to achieve accurate positioning, and achieve the effects of high safety, good function expandability, and strong anti-interference ability

Inactive Publication Date: 2014-10-29
SHANXI DATONG UNIV
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, due to the serious attenuation of underground wireless signals, it is necessary to have a considerable number of signal transceiver devices for underground personnel positioning through wireless methods.
Moreover, the wireless positioning method cannot achieve accurate positioning, and the accuracy of its positioning often depends on the number of signal transceivers in the roadway

Method used

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  • Underground people positioning method based on visible light communication technology
  • Underground people positioning method based on visible light communication technology
  • Underground people positioning method based on visible light communication technology

Examples

Experimental program
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Embodiment Construction

[0034] The overall schematic diagram of the personnel positioning system based on visible light communication technology is as follows: figure 1 shown. Including display and control center, roadway lighting system and personnel positioning module.

[0035] like figure 2 The lighting and control system shown includes two parts, the display and control center 1 and the roadway lighting system 2, which are connected by signal lines.

[0036] The display and control center 1 includes a central processing unit, an analog-to-digital converter, an encoder, a signal amplifying circuit, a decoder, a digital-to-analog converter, a display driving circuit, and a display. The central processing unit is bidirectionally connected to the analog-to-digital converter, encoder, digital-to-analog converter, display drive circuit and decoder; The input terminal signal amplification circuit in the roadway lighting system is connected; the decoder is connected to the digital-to-analog conve...

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PUM

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Abstract

The invention provides a method for positioning underground people by the visible light communication technology. The method is characterized in that the position of people is determined according to different light intensity at different positions between adjacent LED lamps underground and number information of the LED lamps for lighting a laneway. The system for the method is divided into two parts according to the design, namely, a lighting and control system and a people positioning module, wherein the lighting and control system can be used for displaying the position information of people underground in real time and controlling miner lamps; the miner lamps send each number information in a form of a light signal, and PIN photoelectric tubes positioned around the miner lamps are utilized to receive the light information from moving miner lamps; the people positioning module is used for recording and handling with the position information of the people underground and sending out the position information of the people underground through the moving miner lamps carried by the people underground. With the adoption of the method, the people can be positioned, and requirement for lighting underground is also met; in addition, the advantages of being free of radio-frequency radiation and high in safety are brought.

Description

technical field [0001] The invention belongs to the technical field of downhole positioning, and relates to a method for using visible light communication technology to realize downhole personnel positioning, especially capable of real-time positioning of downhole personnel under the condition of lighting. Background technique [0002] At present, the known technical methods adopted for the positioning of underground personnel mainly include RFID technology, ZigBee technology, GIS technology and WIFI technology. [0003] RFID technology, that is, radio frequency identification technology, has developed rapidly since the 1980s, and its application fields are very broad. The core of RFID technology is computer network, radio and large scale integrated circuit. The system composed of RFID technology is very large, and the main components include electronic tags, readers, application interfaces and communication networks. Currently, RFID technology enables two-way identificat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/116E21F17/18
Inventor 韩丙辰朱博文董丽娟石云龙
Owner SHANXI DATONG UNIV
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