A system and method for wireless displacement detection and automatic straightening of hydraulic supports
A technology for hydraulic support and displacement detection, which is used in mine roof support, measuring device, earthwork drilling and other directions, can solve the problems of hydraulic support not being pushed in place, misalignment, etc., to improve accuracy and precision, reduce errors, improve The effect of convenience
Active Publication Date: 2018-05-22
TIANJIN HUANING ELECTRONICS
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Problems solved by technology
[0003] The purpose of the present invention is to overcome the deficiencies of the existing designs, and provide a hydraulic support wireless displacement detection and automatic straightening system and method, which adopts an ultra-wideband wireless method to directly measure the relative displacement of the hydraulic support and the reference object, and then measure and adjust the alignment. Arrange the hydraulic supports and keep them all in a straight line, completely solving the problem of hydraulic supports not being pushed in place and misaligned
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[0025] Embodiments of the present invention are described in further detail below in conjunction with the accompanying drawings:
[0026] A wireless displacement detection and automatic straightening system for hydraulic supports, such as figure 1 As shown, it includes a UWB wireless device and a hydraulic support controller. Each hydraulic support controller is connected to a UWB wireless device and installed at the same position on each hydraulic support, and has an independent number. The UWB wireless device on the hydraulic support The device is powered and communicated through the hydraulic support controller. Three UWB wireless devices are equidistantly installed on the coal shearer, and the virtual connection of the three UWB wireless devices is parallel to the coal shearer body. The UWB wireless device adopts UWB (ultra-wideband) technology, which uses nanosecond to picosecond-level non-sine wave narrow pulses to transmit data, and transmits extremely low-power signal...
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The invention relates to a hydraulic support wireless displacement detection and automatic alignment system and method. The method is technically characterized in that the system comprises UWB wireless devices and hydraulic support controllers; each hydraulic support controller is connected with one UWB wireless device, each UWB wireless device is installed at the same position on the corresponding hydraulic support, the three UWB wireless devices are installed on a coal cutter at equal intervals, and the UWB wireless devices are connected together in a self-networking mode. According to the method, the three UWB wireless devices on the coal cutter serve as coordinate base points, relative coordinates of each hydraulic support and the distance between each hydraulic support and a base line of the coal cutter are calculated, and the hydraulic support controllers control push-movement and alignment of hydraulic supports according to the distance between the hydraulic supports and the base line of the coal cutter. The displacement measurement and automatic alignment functions of the hydraulic supports are achieved, the accuracy and precision of coal mine downhole measurement are greatly improved, errors are reduced, and the system and method can be widely used for environments with coal mine downhole gas explosion hazards, coal mine downhole coal dust explosion hazards and other explosion hazards.
Description
technical field [0001] The invention belongs to the technical field of electro-hydraulic control of coal mine hydraulic supports, in particular to a system and method for wireless displacement detection and automatic straightening of hydraulic supports. Background technique [0002] With the development of electro-hydraulic control system of underground hydraulic supports and shearer technology in coal mines, automatic coal mining methods are gradually becoming practical. In the automatic coal mining technology, the automatic follow-up and automatic push of the hydraulic support are the key technologies. Among them, the automatic follow-up means that the hydraulic support automatically follows the position of the coal machine to move in a timely manner, and the automatic push means that the hydraulic support automatically moves forward according to the demand. , the shifting distance should meet the system requirements. In the existing hydraulic support electric control sys...
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IPC IPC(8): E21D23/12G01B7/14
CPCE21D23/12G01B7/14
Inventor 张远王龙马如意郑金文
Owner TIANJIN HUANING ELECTRONICS