Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

LED visible light wireless communication system for mine

A technology of wireless communication system and LED light source, applied in the field of LED visible light wireless communication system, can solve the problems of limited transmission distance and short transmission distance, and achieve the effects of low duty cycle, low cost and high positioning accuracy

Inactive Publication Date: 2012-08-01
武汉华炬光电有限公司
View PDF0 Cites 31 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional carrier-free pulse UWB technology has a short transmission distance. When the transmission speed is 100Mbps, its effective range is only about 10m, and the transmission distance in mines is very limited.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • LED visible light wireless communication system for mine
  • LED visible light wireless communication system for mine
  • LED visible light wireless communication system for mine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] According to accompanying drawing, the present invention is further described.

[0014] Such as figure 1 As shown, it is a schematic diagram of the LED visible light wireless communication system used in the mine of the present invention. In this embodiment, the LED visible light wireless communication system includes a signal input / output (I / O) processing part, a receiving end part, a transmitting end part, a main control chipset and a software control part; the hardware devices in the system include LED Miner's lamp and LED headlight. LED headlights and LED miner's lamps have built-in photodetectors, and there are miniature transceiver antennas; the photodetectors perform photoelectric conversion and detect the intensity of visible light synchronously. If the signal is too weak, the micro-processing unit (MCU) will automatically switch to In UWB wireless communication mode, the communication is completed through the transceiver antenna; if the modulation pulse frequ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an LED visible light wireless communication system for a mine, which comprises a signal I / O processing part, a receiving end part, an emitting end part, a main control chip set and a software control part, wherein hardware equipment comprises an LED mine lamp and an LED head lamp. In the invention, the communication system can avoid that the communication reliability is influenced because an optical detector is easily polluted due to large dust in the mine for the traditional LED visible light communication technology by adopting a communication mode of combining a UWB (Ultra-wide Band) wireless communication technology with an LED visible light communication technology on the basis of the design scheme of a programmable super-large-scale integration circuit chip, and can fully utilize the advantages of green illumination of LED visible light, wide coverage range, large transmission capacity and high modulation rate. The LED visible light wireless communication system is extremely low in power consumption, has the power consumption of hundreds mu W to tens mW which is only 1 / 10-1 / 100 that of the traditional radio station during high-speed communication, and is more easily realized in intrinsic safety design suitable for the mine.

Description

technical field [0001] The invention relates to a visible light wireless communication system, in particular to an LED visible light wireless communication system used in mines. Background technique [0002] Due to the complex terrain of the mine and the high mobility of monitoring areas such as the fully mechanized mining face, compared with the wired production dispatching system, the wireless safety dispatching system is "installed and ready to use", and a mobile communication network can be built in the mine anytime and anywhere to facilitate mobile access. The monitoring data can be sent to the ground monitoring center in real time, which greatly improves the efficiency of dispatching and monitoring; and in the emergency communication of mine disasters, even if the existing communication system is damaged, wireless communication equipment can be used to quickly form a network to receive and transmit monitoring Data, dynamically grasp the distribution of underground pers...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H04B10/10H04L27/26H04B10/116
Inventor 陈莉郝浩张明康娟
Owner 武汉华炬光电有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com