A thin coal seam coal-rock interface recognition device based on ultra-wideband chaotic radar

An identification device and ultra-wideband technology, applied in testing machinery, earth-moving drilling, slitting machinery, etc., can solve the problems of poor use safety, poor electromagnetic compatibility, limited application scope, etc., and achieve good use safety and electromagnetic compatibility. The effect of good performance and large dynamic range

Active Publication Date: 2017-12-08
TAIYUAN UNIV OF TECH
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Problems solved by technology

[0003] In order to solve the problems of the existing coal-rock interface identification device, such as limited application range, poor use safety, low measurement accuracy, low resolution, poor anti-interference ability, and poor electromagnetic compatibility, the invention provides a thin-walled ultra-wideband chaotic radar-based Coal seam coal-rock interface identification device

Method used

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  • A thin coal seam coal-rock interface recognition device based on ultra-wideband chaotic radar
  • A thin coal seam coal-rock interface recognition device based on ultra-wideband chaotic radar
  • A thin coal seam coal-rock interface recognition device based on ultra-wideband chaotic radar

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Embodiment Construction

[0019] A thin coal seam coal-rock interface recognition device based on ultra-wideband chaotic radar, including a transmitter, a transceiver antenna, a dual-channel receiver, a data acquisition module 11, a signal processing module 12, a communication module 13, and an intrinsically safe power supply 14;

[0020] The transmitter includes an ultra-wideband chaotic signal generator 1, a first bandpass filter 2, a first power divider 3, and a power amplifier 4;

[0021] The transceiver antenna includes a transmitting antenna 5a and a receiving antenna 5b;

[0022] The dual-channel receiver includes a second band-pass filter 6, a third band-pass filter 7, a low-noise amplifier 8, an IQ demodulator 9, and a local oscillator signal generator 10;

[0023] Wherein, the output end of the ultra-wideband chaotic signal generator 1 is connected with the input end of the first bandpass filter 2; the output end of the first bandpass filter 2 is connected with the input end of the first powe...

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Abstract

The invention relates to coal-rock interface recognition technology in unmanned mining of thin coal seams, in particular to an ultra-wideband chaotic radar based coal-rock interface recognition device for thin coal seams. The ultra-wideband chaotic radar based coal-rock interface recognition device for the thin coal seams comprises a transmitter, transmitting and receiving antennas, a two-channel receiver, a data acquisition module, a signal processing module, a communication module and an intrinsic safety power source. The transmitter comprises an ultra-wideband chaotic signal generator, a first band-pass filter, a first power divider and a power amplifier. The transmitting and receiving antennas include a transmitting antenna and a receiving antenna. The two-channel receiver comprises a second band-pass filter, a third band-pass filter, a low-noise amplifier, an IQ demodulator and an intrinsic signal generator. The ultra-wideband chaotic radar based coal-rock interface recognition device for the thin coal seams is applicable to unmanned mining of the thin coal seams and solves the problems of limited application range, poor utilization safety, low measurement precision, low resolution, poor anti-jamming capability and poor electromagnetic compatibility of existing coal-rock interface recognition devices.

Description

technical field [0001] The invention relates to a coal-rock interface recognition technology in unmanned mining of thin coal seams, in particular to a thin coal seam coal-rock interface recognition device based on ultra-wideband chaotic radar. Background technique [0002] In recent years, with the continuous depletion of thick coal seams in mines, thin coal seams (coal seams with a thickness less than 1.3m) have gradually become the main coal seams. In thin coal seam mining, due to the small mining height and low roof, if manual mining is completely relied on, there will be problems such as low mining efficiency, high labor intensity, and many safety accidents. Therefore, in order to improve mining efficiency, reduce labor intensity, and reduce safety accidents, it is imperative to implement unmanned mining in thin coal seam mining. As one of the key technologies in the unmanned mining of thin coal seams, the coal-rock interface recognition technology can enable the sheare...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21C35/24E21C39/00
CPCE21C35/24E21C39/00
Inventor 刘丽李静霞张建国王云才王冰洁
Owner TAIYUAN UNIV OF TECH
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