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A wireless magnetic induction through-the-earth communication device and communication method

A ground-penetrating communication and magnetic induction technology, applied to electrical components, transmission systems, etc., can solve problems such as unstable communication channels and short ground-penetrating distances

Inactive Publication Date: 2018-05-18
CHINA UNIV OF MINING & TECH
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Problems solved by technology

[0005] Aiming at the problems of short ground penetration distance and unstable communication channel of the current mine-used ground-penetrating communication device, the present invention proposes a mine-used long-distance wireless magnetic induction ground-penetrating communication device and communication method based on magnetic induction technology. The ground-penetrating communication system can Under the condition of low power consumption, it adapts to the environment of narrow space and large electromagnetic interference in the mine, and realizes the transmission of long-distance stable real-time voice, control and other signals

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  • A wireless magnetic induction through-the-earth communication device and communication method
  • A wireless magnetic induction through-the-earth communication device and communication method
  • A wireless magnetic induction through-the-earth communication device and communication method

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Embodiment Construction

[0034] The invention is designed to transmit voice signals above and below the mine and signals sent by various sensors installed inside the mine, which play an important role in the daily production and transportation of coal, supervision and management, and even emergency rescue work. These sensors detect the temperature, humidity, harmful gas content, equipment and mechanical operation inside the mine, as well as the location and vital signs of the miners. This kind of wireless ground-penetrating communication is used as a supplement to the daily wired communication above and below the mine, and it is also used as emergency communication when the wired communication and electromagnetic wave wireless communication are paralyzed when a mine disaster occurs.

[0035] Such as figure 1 As shown, a wireless magnetic induction through-the-earth communication device is provided with a transmitting end and a receiving end sequentially in the direction of signal transmission, and the...

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Abstract

The invention relates to a wireless magnetic induction through-the-earth communication device and communication method. Full-duplex communication is realized by utilizing multiple sets of magnetic field generators and magnetic sensors. A multi-frequency transmission method can be adopted when multiple transmit-receive devices exist. The positions of transmitting devices and receiving devices can also be reasonably matched. The intensity of the received signals is ordered. The superfluous signals are filtered by using a band-pass filter and the useful signals are extracted.

Description

technical field [0001] The invention relates to the technical field of wireless communication, and relates to a wireless magnetic induction through-the-earth communication device and a communication method. Background technique [0002] Ground-penetrating communication The backbone of the entire mine communication system is an important link connecting the mine and the mine, and it is the hub connecting trapped miners and rescuers in mine emergency rescue. The mine environment is complex and the space is narrow. It is not suitable to lay too many cables. The wireless communication system is more flexible than the wired communication system to a certain extent. Without too many cables, the probability of communication failure caused by cable damage can be reduced. Traditional ground-penetrating communication systems use electromagnetic waves as carriers to propagate signals. Since electromagnetic waves are greatly disturbed in soil containing moisture, domestic and foreign gr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B13/02H04B1/10H04B1/00
CPCH04B1/005H04B1/10H04B13/02
Inventor 孙彦景吴天琦李松蔡黎江海峰王艳芬翟文艳
Owner CHINA UNIV OF MINING & TECH
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