Magnetic communication device

Abstract

A magnetic communication device comprises a ground command center and an underground communication terminal, the underground communication terminal comprises a terminal controller, a terminal magnetic receiver, a terminal magnetic transmitter and a terminal HMI human-machine interface, the terminal magnetic receiver receives a magnetic pulse signal sent by the ground command center and is connected with the terminal controller through a terminal signal conditioning circuit, the terminal magnetic transmitter is connected to the output end of the terminal controller through the terminal transmitting driver and sends a magnetic pulse signal to a ground command center, and the terminal HMI is connected with a communication interface of the terminal controller. Mine emergency rescue information is transmitted through magnetic pulse signals, the anti-interference capability is high, the communication quality is good, signal transmission does not depend on facilities such as underground cables and pipelines, and the deployment flexibility of communication devices is greatly improved. The device can improve the communication quality and disaster relief efficiency, and can meet the communication requirements of mine emergency rescue.

Description

technical field [0001] The invention relates to a communication system suitable for emergency rescue in mines, belonging to the technical field of communication. Background technique [0002] The complexity of the natural and geographical environment in mines is one of the reasons for the frequent occurrence of mine accidents. When a disaster occurs in a mine, roadway traffic and ventilation conditions deteriorate, harmful gases such as gas and carbon monoxide are seriously exceeded, and severe conditions such as high temperature, thick smoke, and insufficient light will occur. The interruption of underground communication, at this time, whether the rescue command center and the trapped persons at the rescue site can carry out two-way communication and command and dispatch with more comprehensive information will have a major impact on the rescue effect. [0003] Currently common rescue communication equipment includes wired acoustic telephones, wired video intercom communi...

AI Technical Summary

Problems solved by technology

Wired communication devices have their own advantages and can realize voice or visual communication command functions. However, compared with wireless systems, wired rescue communication systems have obvious shortcomings such as troublesome wiring, delaying the golden time of disaster relief, and affecting disaster relief efficiency. Rapid response and flexibility requirements for disaster relief communications

[0004] The intermediate frequency induction wireless phone can conduct electromagnetic waves by means of metal conductors such as existing cables and pipes underground, but the intermediate frequency induction communication has disadvantages such as loud noise, poor quality, and inflexible deployment.

Leaky cable communication products use proprietary leaky cables to conduct electromagnetic waves, which improves the quality of wireless communication to a certain extent compared to intermediate frequency inductive communication, but also brings the disadvantage of extremely inflexible deployment and maintenance

[0005] To sum up, the existing rescue communication equipment is either not flexible enough to deploy, or the communication quality is poor, which cannot meet the communication requirements of mine emergency rescue.

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