Image-based locating and monitoring method for underground locomotive distance measurement

Abstract

The invention discloses an image-based locating and monitoring method for underground locomotive. The locating and monitoring method can determine the position of underground locomotive by detecting the lamp of underground locomotive, fully considering the complex environment of underground coal mine and the characteristics of underground locomotive, and is simple in implementation and automatic in detection. It can monitor the position information of underground locomotive in real time and alarm the locomotive overspeed. The method has the advantages of simple and effective positioning process, strong anti-electromagnetic interference ability, effective prevention of positioning error caused by different electromagnetic wave transmission characteristics of different roadway environments of a mine, and strong robustness. The positioning system using the positioning method has the characteristics of high positioning accuracy, low cost, simple structure of system equipment, easy implementation and so on. Easy to dispatch and manage the safety production management personnel.

Description

technical field [0001] The invention relates to an image-based ranging and positioning monitoring method for an underground locomotive, and the method relates to the technical fields of digital image processing, pattern recognition and the like. Background technique [0002] my country is a big country in coal mining, and coal is an important energy source in our country. The coal production industry is a high-risk industry, and various accidents plague the safety production of coal mines. The underground locomotive accident is one of the frequent man-made accidents in the mine. [0003] At present, the mine locomotive positioning system mainly adopts inertial navigation, position sensor and radio signal positioning technology. The locomotive positioning technology based on inertial navigation mainly uses speed sensors. The locomotive itself can obtain the position, but the position data still needs the underground wireless communication system. When the underground wirele...

AI Technical Summary

Problems solved by technology

The locomotive positioning technology based on inertial navigation mainly uses speed sensors. The locomotive itself can obtain the position, but the position data still needs the underground wireless communication system. When the underground wireless communication system fails, the locomotive cannot be located; the positioning system based on the position sensor requires A large number of position sensors and wired communication equipment, the system cost is high, and it is impossible to accurately locate the locomotive

Radio signal positioning technology is based on the transmission signal attenuation RSSI or transmission time of radio signals in mines. Since radio signals are easily affected by roadway size, shape, roadway roughness, obstacles and other factors during transmission, the signal attenuation model is extremely complex , low positioning accuracy

The positioning accuracy of the positioning system based on the radio signal transmission time is higher than that of the RSSI positioning system, but the radio signal transmission time is affected by multipath effects, non-line-of-sight propagation delay, clock synchronization, clock timing errors, etc., and it cannot achieve accurate positioning of the locomotive. positioning requirements

The radio signal positioning system also has the following disadvantages: 1. The communication terminal equipment is large in size and high in cost

2. The system involves wireless and wired communication systems. Access base stations need to be installed at intervals in the roadway, and the construction period is long

3. There are many auxiliary equipment, and the cost of system construction and maintenance is high

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