Coal-rock sound emission monitoring system analog signal source based on PSoC3 (Programmable System-on-Chip3)
A technology for simulating signals and monitoring systems, which is used in measurement devices, generation of ultrasonic/sonic/infrasonic waves, and material analysis using sonic/ultrasonic/infrasonic waves. and other problems, to achieve the effect of reducing space and time costs, high integration, and smooth operation
Inactive Publication Date: 2012-07-18
SHANDONG UNIV OF SCI & TECH
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However, the common virtual signal generator is not designed for the acoustic emission system, and each output signal has no correlation, which cannot meet the special requirements of the coal rock acoustic emission monitoring system for the signal source
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[0045] Below in conjunction with embodiment the present invention is further described.
[0046] An analog signal source for coal rock acoustic emission monitoring system based on PSoC3, the overall structure is as follows figure 1shown. The present invention comprises computer 1 and the operating system software (Windows 2000 / XP / Vista / 7) that runs on it, supporting PC software, USB interface device driver program, the USB communication interface cable 2 that connects computer and virtual instrument card, virtual instrument Card 3; the virtual instrument card 3 is composed of microcontroller, DAC, USB controller, analog signal output channel and power supply module, wherein the microcontroller, DAC, and USB controller module are completely implemented on a PSoC3 chip 4; supporting PC software According to the sound source position set by the user, the position of the sound sensor array, and the sound signal attenuation coefficient, the waveform data of 4 channels of coal and ...
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The invention discloses a coal-rock sound emission monitoring system analog signal source based on a PSoC3 (Programmable System-on-Chip3). The analog signal source comprises two parts of a virtual instrument card and matched PC (Personal Computer) software, and the two parts are communicated through a USB (Universal Serial Bus) 2.0 interface. The virtual instrument card is mainly used for completing the task of signal generation, and consists of a microcontroller, a DAC (Digital-to-Analog Converter), a USB, an analog signal output end and a power module, wherein the microcontroller, the DAC, and the USB core module are completely realized on one PSoC3 chip. The matched PC software is designed in a graphical development environment of LabVIEW, and consists of sound source position set, sensor array set, sound signal attenuation coefficient set, sound source wave form generation, sound source wave form playback, sound source and sensor array space position display, wave form display and USB equipment management modules. The signal source disclosed by the invention can replace sound sources, various sound sensor array forms and different experimental environments needed in the experimenting process of a coal-rock sound emission monitoring system, can be used for effectively verifying the accuracy, the rapidness and the generality of the coal-rock sound emission monitoring system at different mine environments, and meets the need of a large number of experiments in the initial stage of coal-rock sound emission monitoring system development.
Description
Technical field [0001] The present invention relates to a kind of analog signal source of coal rock acoustic emission monitoring system based on PSoC3, specifically relates to a kind of virtual signal generator based on PSoC3 and PC software based on LabVIEW, simulated to reach 4 different The 4-channel coal-rock cracking acoustic signal of an azimuth sound sensor is a device that can meet the requirements of a coal-rock acoustic emission monitoring system with different sound source positions, different array forms, and different propagation media, and belongs to the field of virtual instruments. Background technique [0002] Frequent accidents in coal mines make safe mining of coal mines a major research topic in the coal industry. Acoustic emission technology is an important means to study the microcosmic mechanism of coal rock fracture, and it has important practical significance for the monitoring of coal rock instability and the prediction of coal mine disasters. In t...
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IPC IPC(8): G01N29/30G01N29/34
Inventor 赵洪亮徐磊田莹莹冯国金王亚南马进孙柯
Owner SHANDONG UNIV OF SCI & TECH