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Moving target locating method based on relative signal strength for mine

A technology of relative signal strength and positioning method, which is applied in the field of radio communication, distance measurement and positioning, and can solve the problems of RFID reading and writing speed limitation, inability to handle multiple people passing through the card reading system at the same time, and prone to missed reading.

Active Publication Date: 2014-05-21
CHINA UNIV OF MINING & TECH (BEIJING)
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0003] 1. The positioning accuracy is limited by the distribution density of the readers, and can only achieve regional positioning, and cannot achieve accurate positioning with an error of a few meters;
[0004] 2. Limited by the reading and writing speed of RFID, it cannot handle the situation that many people pass through the card reading system at the same time, and it is easy to miss reading

Method used

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  • Moving target locating method based on relative signal strength for mine
  • Moving target locating method based on relative signal strength for mine
  • Moving target locating method based on relative signal strength for mine

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Embodiment Construction

[0020] The positioning method is realized by an underground positioning system, such as figure 1 In the illustrated embodiment, the positioning system includes: a management subsystem, a wired network subsystem and a wireless network subsystem. The wired communication subsystem is the backbone communication network of the entire positioning system, and the main transmission medium is optical fiber for mining.

[0021] The management subsystem includes:

[0022] 1. Positioning server (1), the positioning server is responsible for positioning calculation, communication management of each terminal of the wireless network subsystem, data storage, and providing personnel and equipment information services for monitoring terminals.

[0023] 2. Monitoring terminal (2), production management personnel access the positioning server through the monitoring terminal to realize real-time monitoring of underground staff and related equipment. The monitoring terminal has map display, staff ...

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Abstract

The invention discloses a moving target locating method based on relative signal strength for a mine. According to the locating method, underground working personnel using locating equipment and a moving target are located through a locating server and substation equipment, and a locating process is simple and effective, thereby realizing high electromagnetic interference resistance, effectively preventing locating errors due to different electromagnetic wave transmission characteristics in different lane environments of the mine, effectively eliminating locating errors due to different power and power change of wireless communication equipment, and achieving high robustness. A locating system using the locating method has the characteristics of high locating accuracy, low cost, simple structure of system equipment and easiness in implementation. Safety production management personnel can perform scheduling and management conveniently.

Description

technical field [0001] The invention relates to a method for detecting and calculating the position of a moving target in a mine, and the method relates to the fields of radio communication, distance measurement and positioning technology and the like. Background technique [0002] Downhole positioning is an important measure for safe production. The commonly used positioning methods on the well are: angle of arrival positioning (Angle Of Arrival, AOA), time of arrival positioning (Time Of Arrival, TOA), time difference of arrival positioning (Time Difference Of Arrival, TDOA), received signal strength indication positioning (Received Signal Strength Indication) , RSSI) and radio frequency identification technology (RFID, Radio Frequency Identification) and other methods. Arrival angle positioning has positioning dead angles, substation antennas are complex, costly, and maintenance workload is heavy, so it is not suitable for mine personnel positioning. Arrival time positi...

Claims

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Application Information

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IPC IPC(8): G01S5/02
CPCG01S5/14G01S5/16
Inventor 孙继平刘毅伍云霞
Owner CHINA UNIV OF MINING & TECH (BEIJING)
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