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FPGA (Field Programmable Gate Array)-based acquisition control and signal processing apparatus with X-ray detector for steel cord conveyor belts

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: 2015-06-10
TIANJIN POLYTECHNIC UNIV +1
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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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  • FPGA (Field Programmable Gate Array)-based acquisition control and signal processing apparatus with X-ray detector for steel cord conveyor belts
  • FPGA (Field Programmable Gate Array)-based acquisition control and signal processing apparatus with X-ray detector for steel cord conveyor belts
  • FPGA (Field Programmable Gate Array)-based acquisition control and signal processing apparatus with X-ray detector for steel cord conveyor belts

Examples

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Embodiment

[0087] An 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 including 4 sets of photoelectric converters.

[0088] image 3 Shown is the structural block diagram of the signal acquisition module in the detector. The photoelectric conversion module includes 4 groups of photoelectric conversion boards, and each group of photoelectric conversion boards connects 4 (up to 8) photoelectric conversion boards in series to generate 1 serial electrical signal; 4 serial electrical signals generated by 4 groups of photoelectric conversion boards The signal is sent to the signal acquisition module at the same time for amplification, filtering and A / D conversion to improve 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 circui...

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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 an acquisition control and signal processing device of an X-ray detector of a conveyor belt steel cord core implemented 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 carrying, and has been widely used in coal, mines, ports, electric power, metallurgy, chemical industry and other fields. During use, due to the increase in the load of the steel cord conveyor belt, it is scratched by foreign objects or obstacles such as scrap steel or gangue, and the conveyor belt is aging due to long-term use in harsh environments, the installation and adjustment of the conveyor is improper, and the steel cord joints overlap Faults such as breakage, scratches, corrosion, and elongation of the steel wire rope core due to poor vulcanization and other reasons, once a...

Claims

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Application Information

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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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