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Research on the Foreign Fiber Detecting and Clearing System

Author: TaoXueHua
Tutor: WangDongYun
School: Zhongyuan Institute of Technology
Course: Control Theory and Control Engineering
Keywords: Straight fiber Automatic detection removal system A digital signal processor (DSP)
CLC: TP274.4
Type: Master's thesis
Year: 2010
Downloads: 40
Quote: 0
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Abstract


Straight fiber removal system automatically detects the adoption of the ginning process , not only can improve the product quality and production speed, but also greatly minimize the cost of production . But has been the high price of foreign testing equipment , and our small cotton mill more, due to financial and technological development and other reasons, the purchasing power is not strong. Some domestic manufacturers are basically using hardware equipment purchased from abroad , integrated systems , their development , processing software simply way to develop foreign fiber detection products , is difficult to have their own intellectual property , products less competitive . Therefore, the development of the opposite sex with independent intellectual property rights fiber removal system automatically detects meaningful. The main subject of study foreign fiber detection system as well as the input and output data between the chip and the reader interface circuit timing issues . According to some of the existing technical conditions and environment , combined with the current digital signal processor (DSP) , the rapid development of DSP FPGA architecture is designed based on the foreign fiber clearing system to TMS320DM642 -based processor , EP1C6Q240C8 for a coprocessor . Foreign fiber clearing system is mainly a signal acquisition part , data conversion and storage section , as well as data processing and foreign fiber clearing parts. High-speed linear CCD cameras to capture images into signal conversion and buffer module FIFO, microprocessor DM642 based on the signal -triggered interrupt its data read and processed , and the results communicated to the execution control mechanism to get rid of foreign fibers . The design of the specific functional requirements for the system , using a new line array CCD camera , has a high-speed data transmission interface, and the interface has been designed specifically for the conversion and receiving circuit , and the use of FPGA and DSP to achieve a combination of different fiber testing, both in the full use of the advantages of image processing . Completed the DM642 and its peripheral module design , including system power, system clock , memory circuits , video encoding circuit. The system software is in the CCS development environment , already SDRAM and FLASH memory modules for reading and writing tests , CPU is working properly, the hardware design is reasonable .

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation systems > Data processing, data processing system > Centralized testing and roving detection system
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