重庆理工大学学报:自然科学
重慶理工大學學報:自然科學
중경리공대학학보:자연과학
Journal of Chongqing Institute of Technology
2011年
7期
96-101
,共6页
马轶男%陈鹏%代东林%郭查清%沈志熙
馬軼男%陳鵬%代東林%郭查清%瀋誌熙
마질남%진붕%대동림%곽사청%침지희
FPGA%车载图像记录仪%SAA7113H%SDRAM%Flash
FPGA%車載圖像記錄儀%SAA7113H%SDRAM%Flash
FPGA%차재도상기록의%SAA7113H%SDRAM%Flash
FPGA%vehicle image recorder%SAA7113H%SDRAM%Flash
提出了一种基于FPGA的车载图像记录仪的设计,其主要功能是记录车辆行驶过程中的图像信息,为车辆事故责任的准确判断提供事实依据。记录仪的工作原理为:以FPGA芯片作为系统核心,控制SAA7113H将CCD传感器采集的模拟视频信号转换成数字信号,由SDRAM实现图像数据的缓存。当存完一帧图像以后,再将SDRAM中的数据转存入Flash中,完成图像的实时采集。最后通过USB将图像数据传输到PC机中进行事故责任分析。
提齣瞭一種基于FPGA的車載圖像記錄儀的設計,其主要功能是記錄車輛行駛過程中的圖像信息,為車輛事故責任的準確判斷提供事實依據。記錄儀的工作原理為:以FPGA芯片作為繫統覈心,控製SAA7113H將CCD傳感器採集的模擬視頻信號轉換成數字信號,由SDRAM實現圖像數據的緩存。噹存完一幀圖像以後,再將SDRAM中的數據轉存入Flash中,完成圖像的實時採集。最後通過USB將圖像數據傳輸到PC機中進行事故責任分析。
제출료일충기우FPGA적차재도상기록의적설계,기주요공능시기록차량행사과정중적도상신식,위차량사고책임적준학판단제공사실의거。기록의적공작원리위:이FPGA심편작위계통핵심,공제SAA7113H장CCD전감기채집적모의시빈신호전환성수자신호,유SDRAM실현도상수거적완존。당존완일정도상이후,재장SDRAM중적수거전존입Flash중,완성도상적실시채집。최후통과USB장도상수거전수도PC궤중진행사고책임분석。
The paper Presented a FPGA-based vehicle image recording instrument design. Its main function is to record image information in the process of traffic so as to provide a strong factual basis for determining the responsibility of the accident correctly. Recorder works for SAATll3H capturing analog video signals from the CCD sensors into digital signals, SDRAM works as a buffer of the image data. After the accomplishment of saving one frame data, FPGA issued control signals to transfer data from SDRAM into Flash. Then the acquisition of the real-time image data is completed. Finally, it transfers the image data into the computer for the accident analysis through USB.