Down-hole personnel location system and method based on wireless pulse flight time measurement

Abstract

The present invention discloses a down-hole personnel location system and method based on wireless pulse flight time measurement. The system comprises an industrial host, an ad-hoc network station anda locater. The method comprises the steps of: 1, laying of a down-hole personnel location system; 2, establishing of a rectangular plane coordinate system; 3, location of down-hole personnel, wherein301, wireless main and slave stations send time request frames to the locater, 302, the locater generates time response frames and returns the time response frames to the wireless main and slave stations; 303, the wireless main and slave stations receive the time synchronization response frames sent by the locater; 304, the wireless main and slave stations send time request frames to the locateragain, 305, the locater regenerates the time response frames and returns the time response frames to the wireless main and slave stations, 306, the wireless main and slave stations receive the time synchronization response frames returned by the locater again, 307, wireless pulse flight time calculation is performed, 308, location distance calculation is performed, and 309, location coordinates ofthe down-hole personnel are determined. The down-hole personnel location system and method can determine the location of the down-hole personnel to monitor the working state of the down-hole personnel.

Description

technical field [0001] The invention belongs to the technical field of underground personnel positioning, and in particular relates to an underground personnel positioning system and method based on wireless pulse time-of-flight measurement. Background technique [0002] There are a large number of operators in coal mine underground and subway construction, so it is of great significance to strengthen the daily monitoring and management of construction personnel. Once an accident occurs underground, due to the complex and changeable surrounding environment, rescuers cannot go down to rescue in time, so it is necessary to use personnel positioning technology to determine the specific location of the trapped personnel. Considering the construction environment of underground coal mines and underground subways, GPS and WIFI positioning commonly used on the ground are not suitable for underground. At present, the methods for downhole personnel positioning mainly include downhole...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide an underground personnel positioning system based on wireless pulse time-of-flight measurement, which is novel and reasonable in design, and ad hoc networks are arranged according to the actual length-to-width ratio of the underground roadway. The base station cooperates with the locator to realize the optimization of positioning accuracy and delay, thus effectively solving the problems of large accuracy error, slow delay response, and high cost of the positioning system. It can not only monitor the working dynamics of underground personnel in daily production management, but also can Quickly determine the specific location of the trapped people when a disaster occurs underground, and play a huge role in ensuring safe production, accident prevention and emergency rescue, and is easy to promote and use

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