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An fpga-based x-ray detector acquisition control and signal processing device for steel cord conveyor belt

A signal processing device and optical detector technology, which is applied in the direction of measuring device, program control, computer control, etc., can solve the problem of unsatisfactory correction effect, and achieve the effect of accurate online monitoring, low complexity, and high integration

Active Publication Date: 2017-06-27
TIANJIN POLYTECHNIC UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Otherwise, if there is a large error in the correction coefficient based on the correction algorithm, the correction effect will not be ideal

Method used

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  • An fpga-based x-ray detector acquisition control and signal processing device for steel cord conveyor belt
  • An fpga-based x-ray detector acquisition control and signal processing device for steel cord conveyor belt
  • An fpga-based x-ray detector acquisition control and signal processing device for steel cord conveyor belt

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Experimental program
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Embodiment

[0087] The FPGA-based steel cord conveyor belt X-ray detector acquisition control and signal processing device of the present invention is applied to a conveyor belt steel cord X-ray detector containing 4 sets of photoelectric converters.

[0088] image 3 Shown is the block diagram of the signal acquisition module in the detector. The photoelectric conversion module contains 4 sets of photoelectric conversion boards. Each set of photoelectric conversion boards connects 4 (maximum 8) photoelectric conversion boards in series to generate 1 serial electrical signal; 4 sets of photoelectric conversion boards generate 4 serial electricity The signal is sent to the signal acquisition module at the same time for amplification, filtering and A / D conversion to increase the signal acquisition rate. The signal conditioning circuit is composed of an emitter follower, a differential-to-single-ended circuit and a differential amplifier; the A / D conversion circuit uses TI’s AD7667 chip, which ...

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Abstract

The invention relates to an FPGA (Field Programmable Gate Array)-based acquisition control and signal processing apparatus with an X-ray detector for steel cord conveyor belts; the apparatus mainly comprises a photoelectric conversion control module, a signal acquisition control module and a data correction and homogenization treatment module; the photoelectric conversion control module realizes sequential control to a photoelectric conversion device so as to convert X-ray signals into electrical signals; and the data correction and homogenization treatment module realizes compensation to data deviation caused by the non-uniformity of a belt radian and a photoelectric conversion pixel; the rapid, real-time and accurate online monitoring of the X-ray detector to the steel cords of the conveyor belts can be facilitated; moreover, the control of each part of the X-ray detector and all signal treatment algorithms are realized on the basis of one FPGA, so that the whole detector has higher integration level and lower complexity.

Description

Technical field [0001] The invention specifically relates to a collection control and signal processing device of a conveyor belt steel cord core X-ray detector based on FPGA in the field of photoelectric detection technology and system and safety detection and monitoring. Background technique [0002] Steel cord conveyor belt is an important part of belt conveyor traction and transportation, and has been widely used in coal, mining, port, electric power, metallurgy, chemical and other fields. During use, due to the increased load of the steel wire rope core conveyor belt, it is scratched by foreign objects or obstacles such as waste steel or gangue. Long-term use in harsh environments will cause the conveyor belt to age, improper installation and adjustment of the conveyor, and wire rope core joints overlap. Failures such as wire rope core fracture, scratches, corrosion, joint elongation, etc. due to poor vulcanization and other reasons. Once the failure occurs, it will cause a ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/042G01N23/083
CPCG05B19/04
Inventor 苗长云戈立军李现国张立东王榆生
Owner TIANJIN POLYTECHNIC UNIV
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