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Novel underground personnel wireless positioning and voice communication system and method

A voice communication and wireless positioning technology, applied in the field of visible light communication, to achieve the effects of improved utilization, low energy consumption, and high transmission rate

Inactive Publication Date: 2021-10-19
WEIFANG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Aiming at the problems that the existing underground communication system is susceptible to electromagnetic interference, poor anti-interference ability and low security, the present invention provides a new type of wireless positioning and voice communication system and method for underground personnel, especially relates to a visible light communication based A new type of underground personnel wireless positioning and voice communication system and method based on technology aims to overcome the shortcomings of existing underground positioning systems

Method used

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  • Novel underground personnel wireless positioning and voice communication system and method
  • Novel underground personnel wireless positioning and voice communication system and method

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Embodiment 1

[0061] The embodiment of the present invention provides a device for locating and communicating underground personnel based on visible light communication. The system is divided into a display and control module, a lighting system, a wireless positioning system, and a voice communication module.

[0062] The display and control module includes central processing unit, A / D converter, encoder, signal amplifier, D / A converter, decoder and display. The central processing unit is bidirectionally connected to various processors, converts the signal and encodes it, and after passing through the signal amplifier, transmits it to the decoder to restore the information, and displays it on the display.

[0063] The lighting system uses LEDs, which can transmit information through optical signals by using its fast flashing characteristics, and can perform data transmission while lighting under the mine.

[0064] The wireless positioning system includes a transmitter, an LED drive circuit,...

Embodiment 2

[0070] 1. The overall structure of visible light wireless positioning and voice communication system

[0071] After the collected signal is processed by signal amplification and filtering, A / D conversion, and coded modulation, it is transmitted by the power line carrier to the mine for reception, and then modulated by the drive circuit to the LED, and then transmitted to the photodetector in the form of an optical signal. The optical signal is converted into an electrical signal, which is sent to the single-chip microcomputer after decoding and demodulation processing, and the analog-to-digital conversion is performed through the D / A converter, and then filtered and amplified to realize the two functions of wireless positioning and voice communication. The overall structure of the system is as figure 1 shown.

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Abstract

The invention belongs to the technical field of visible light communication, and discloses a novel underground personnel wireless positioning and voice communication system and method. The novel underground personnel wireless positioning and voice communication system comprises a display and control module, a lighting system, a wireless positioning system and a voice communication module, wherein the display and control center displays positions of workers under a mine in real time and controls the lighting system; the lighting system provides light, transmits information from the ground through optical signals, and receives optical information transmitted by a mobile miner's lamp; the wireless positioning system records position information of underground personnel in real time and transmits the information by using the mobile miner's lamp carried by the wireless positioning system; and the voice communication module encodes and modulates voice signals and then transmits the voice signals through the optical signals, uses a receiving end to receive information and restore the voice signals, and sends voice messages to other communication personnel through the optical signals. According to the invention, lighting equipment is used for positioning and communication, the security and transmission rate are high, and the energy consumption is low.

Description

technical field [0001] The invention belongs to the technical field of visible light communication, and in particular relates to a novel underground personnel wireless positioning and voice communication system and method. Background technique [0002] At present, visible light communication technology uses high-speed bright and dark flickering signals invisible to the naked eye emitted by fluorescent lamps or light-emitting diodes to transmit information. Connect the high-speed Internet wire device to the lighting device and plug it into the power plug to use it. It has the characteristics of rich bandwidth resources, no electromagnetic radiation, fast construction, low cost and high safety performance. It can transmit data efficiently and stably even under harsh environmental conditions. Under the mine, there are miner's lamps and there is no interference of natural light, which has great advantages for visible light communication, and can transmit positioning and voice in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/116H04B3/54H04W4/02H04W4/021H04W4/029H04W64/00H04Q5/24
CPCH04B10/116H04B3/544H04W4/021H04W4/023H04W4/029H04W64/00H04Q5/245
Inventor 台流臣李晓艺李雨洁王欣
Owner WEIFANG UNIVERSITY
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