An antenna for very low frequency through-the-earth communication

Abstract

The invention discloses an antenna for very low frequency through-the-earth communication. The antenna mainly comprises a housing, a relay, a transmitting antenna, a filter, a receiving antenna, a control module and a power source; the transmitting antenna is movably connected to a transmitting signal hole; the relay is connected to the transmitting antenna; the filter is disposed inside the housing; the receiving antenna is movably disposed inside the housing; the receiving antenna can protrude through a receiving signal hole; the filter is connected to the receiving antenna, and the amplifier is disposed at the connection part; the control module includes a CPU, an FPGA, and a router; and the power source is a movable power source, and the power source is connected with the relay, the filter, and the amplifier. A communication antenna based on a very low frequency technology transceiver integrated full-duplex through-earth communication device is realized, and is applicable to dailycommunication of all kinds of coal mines, non-coal mines, and tunnels, and through-the-earth communication devices for monitoring data transmission and disaster relief.

Description

technical field [0001] The invention belongs to the technical field of rescue communication system equipment, and in particular relates to an antenna for very low frequency through-the-earth communication. Background technique [0002] At present, my country's emergency industry is showing a trend of vigorous development, and the emergency industry system has basically formed, and among them, the security communication system has become an important supporting force. Although there are some emergency rescue communication products on the market, after market research, it is found that these products have the following problems in application, which are difficult to overcome: [0003] (1) The traditional wired rescue communication equipment system is very complex and has poor scalability, and once a disaster occurs, especially when there are flammable and explosive gas leaks, explosions, fires and power outages on the site, it will face the risk of complete paralysis. [0004...

AI Technical Summary

Problems solved by technology

[0003] (1) The traditional wired rescue communication equipment system is very complex and has poor scalability, and in the event of a disaster, especially when there are flammable and explosive gas leaks, explosions, fires, power outages and other bad situations on site, they will face the risk of complete paralysis

[0004] (2) Wireless emergency rescue communication equipment currently only has sporadic imported products, which cannot solve the certification problems of China's coal safety, mine safety, and intrinsic safety series standards, and the actual detection distance is too short, which greatly limits its application range

However, the miniaturization of wireless devices and the miniaturization of handheld devices have resulted in insufficient space for antennas inside the device

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