Coal mine worker positioning and managing system based on ZigBee technology

Abstract

The invention discloses a coal mine worker positioning and managing system based on a ZigBee technology. When a worker with an identification card passes through a working coverage of a wireless positioning base station, the identification card actively sends worker code information to the wireless positioning base station; the wireless positioning base station receives the information sent by the identification card and transmits the information to a network controller through a LonWork control bus; the network controller sends the data to a ground control center network through an Ethernet; and the ground control center network acquires and processes the information, and displays the information to a manager in real time. By the coal mine worker positioning and managing system, the real-time supervising ability of a coal mine manager and superior supervising departments on a running condition of a coal mine is improved; and powerful information insurance and support are supplied to rescuers after an accident happens.

Description

technical field [0001] The purpose of the present invention is to propose a coal mine personnel positioning and management system based on ZigBee technology, improve the real-time supervision ability of coal mine management personnel and upper supervisory departments on the operation of coal mines, and provide strong information protection for rescuers after accidents occur and support. Background technique [0002] In recent years, the country's demand for coal has been increasing rapidly, and the coal industry has also been greatly developed. However, major accidents in coal mines occur from time to time, and effective control of disaster accidents has not yet been realized. Due to the particularity of the coal mine industry, it is generally difficult to manage the underground personnel at present. It is difficult for the above-ground personnel to grasp the dynamic distribution and operating conditions of the underground personnel in a timely manner. Once an accident occur...

AI Technical Summary

Problems solved by technology

This kind of identification card has the following problems: the effective working time is short; the missed detection rate of positioning personnel is high under high-speed conditions; ), there will be a phenomenon of missing reading; the communication method requires a high signal-to-noise ratio, and the anti-interference ability is poor, while the underground environmental conditions are very complex, and interference factors are everywhere, especially the most critical mining face; the reading and writing distance is limited , there are certain requirements for matching the orientation position of the marking card and the orientation of the reader antenna, and the flexibility of the system is greatly limited

[0005] (2) One-way information transmission, low information transmission rate

The direction of information transmission in the early personnel positioning system was from the identification card to the main station. As a system to ensure the safety of miners, there is no way to send information underground, which greatly reduces the role that this type of system can play.

The low data transmission data of the personnel positioning system affects the real-time performance of the system

[0006] (3) The transmission rate of the underground control network or bus is low, the transmission distance is short, the communication is unreliable, the bit error rate is high, and the damage of one node often leads to the paralysis of the whole system

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