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基于Cortex-M4的激光在線(xiàn)測量控制器設計
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天津大學(xué) 精密測試技術(shù)及儀器國家重點(diǎn)實(shí)驗室,天津大學(xué) 精密測試技術(shù)及儀器國家重點(diǎn)實(shí)驗室,天津大學(xué) 精密測試技術(shù)及儀器國家重點(diǎn)實(shí)驗室,天津大學(xué) 精密測試技術(shù)及儀器國家重點(diǎn)實(shí)驗室

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中圖分類(lèi)號:

TP273

基金項目:

國家自然科學(xué)基金項目(面上項目,重點(diǎn)項目,重大項目)


Design of a Controller in Laser On-line Measuring System Based on Cortex-M4
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State Key Laboratory of Precision Measuring Technology and Instruments,Tianjin University,,State Key Laboratory of Precision Measuring Technology and Instruments,Tianjin University,State Key Laboratory of Precision Measuring Technology and Instruments,Tianjin University

Fund Project:

The National Natural Science Foundation of China (General Program, Key Program, Major Research Plan)

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    摘要:

    針對現場(chǎng)白車(chē)身激光在線(xiàn)測量系統控制柜內控制模塊過(guò)多,接線(xiàn)復雜,且在高強度工作時(shí)柔性視覺(jué)傳感器線(xiàn)纜容易斷裂造成短路等問(wèn)題,設計了基于高性能Cortex-M4處理器的激光在線(xiàn)測量控制器。該控制器利用以太網(wǎng)與測量計算機通信,通過(guò)RS-485總線(xiàn)與多個(gè)視覺(jué)傳感器相連,控制其快速、可靠地對白車(chē)身進(jìn)行測量。同時(shí)在電源輸出端采用電壓取樣的短路保護措施,并利用改進(jìn)的限幅去極值平均濾波算法對電壓采樣值進(jìn)行處理。與原有控制系統相比,該控制器具有結構簡(jiǎn)單,運行穩定,成本低,實(shí)時(shí)性好的優(yōu)點(diǎn),保障測量系統安全、可靠地運行。

    Abstract:

    A design of a controller for laser on-line measuring system based on Cortex-M4 is reported, and it aims at solving the problem of too many control modules and complex wiring in the control cabinet of Car Body-in-white laser on-line measuring system, as well as short circuit caused by fracture of flexible visual sensor cables at high strength work. The controller communicates with the host computer via Ethernet, and connects with visual sensors through RS-485 serial bus, controlling them to measure the white body of cars quickly and reliably. At the same time, voltage sampling way of short circuit protection is adopted in the power outputs, and deals with voltage sampling values in combination with the improved amplitude-limiting and limiter average filtering algorithm. Compared with the original control system, the controller has the advantages of simple structure, running stability, low cost and fine real time, ensuring the measurement system operate safely and reliably.

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張洪彬,任永杰,李正輝,張賓.基于Cortex-M4的激光在線(xiàn)測量控制器設計計算機測量與控制[J].,2015,23(12):46.

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歷史
  • 收稿日期:2015-06-14
  • 最后修改日期:2015-06-14
  • 錄用日期:2015-07-14
  • 在線(xiàn)發(fā)布日期: 2016-01-08
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