Setting-Up Wireless Communication System for Mine Rescue Robots

Abstract

Aiming at the communication system breakdown after coal mine explosions collapses and other accidents, this paper puts forward an efficient construction method for long distance of wireless communication system in emergency with coal mind rescue robots which are self-adaptive and self-networking. With a two-level robotic system of detecting-robot and carrying-robot as the main, the carrying-robot, equipped with distributing device which contains a "roly-poly" wireless repeater, enters into an accident underground, analyzes the underground communication environment via network monitoring system, controls the distributing device and safely distributes the repeaters in order to realize secure and reliable communication with underground coal mine rescue robot. The test shows that the wireless communication system for emergency is rational, feasible, safe and reliable.

The Wireless Channel Characteristic Analysis of Coal Mine Rescue Robot in Unstructured Vertical Working Environment

“…As shown in Figure 2, wireless electromagnetic signal enter the largest vertical tunnels ray (critical rays) is 2 L . ray in angle for the rock is  .…”

“…Wherefore, the information is detected by the rescue robot can not be reliably transmitted. More seriously, the communication is interrupted between the robot and RCC, the robot could be lost [2].…”

“…According to the above problems, we based on the characteristics of radio wave propagation in coal mine roadway, the wireless communication characteristics of coal mine rescue robot in the complicated underground environment are studied in the paper [3]. The coal mine rescue robot wireless communication transmission is affected by many factors.…”