光电工程
光電工程
광전공정
OPTO-ELECTRONIC ENGINEERING
2014年
9期
87-94
,共8页
赵恩毅%陈善球%杨平%晏虎%何星
趙恩毅%陳善毬%楊平%晏虎%何星
조은의%진선구%양평%안호%하성
成品相机%自适应光学系统%CameraLink接口%FPGA
成品相機%自適應光學繫統%CameraLink接口%FPGA
성품상궤%자괄응광학계통%CameraLink접구%FPGA
industrial camera%adaptive optics (AO) systems%CameraLink interface%FPGA
为解决成品相机给自适应光学系统带来的实时性不高、灵活性和功能拓展性差等问题，本文提出了采用CameraLink协议接口、QDRII高速缓存、FPGA等进行相机设计的方法。该方法利用CameraLink高速接口保证了相机传输带宽，将FPGA作为主控单元，使相机具有可编程特性，保证了相机灵活性和功能拓展性。采用模块化的设计思路完成了相机优化设计，并进行了试验验证。结果表明相机在80 bits模式下8-tap/10-bit格式读出数据率达6 Gbits/s，264 pixels×256 pixels开窗后能实现5200 f/s(帧/秒)，且兼容CameraLink协议中其它格式。对相机进行了硬件图像裁剪的功能拓展，并分析了其它拓展功能应用。
為解決成品相機給自適應光學繫統帶來的實時性不高、靈活性和功能拓展性差等問題，本文提齣瞭採用CameraLink協議接口、QDRII高速緩存、FPGA等進行相機設計的方法。該方法利用CameraLink高速接口保證瞭相機傳輸帶寬，將FPGA作為主控單元，使相機具有可編程特性，保證瞭相機靈活性和功能拓展性。採用模塊化的設計思路完成瞭相機優化設計，併進行瞭試驗驗證。結果錶明相機在80 bits模式下8-tap/10-bit格式讀齣數據率達6 Gbits/s，264 pixels×256 pixels開窗後能實現5200 f/s(幀/秒)，且兼容CameraLink協議中其它格式。對相機進行瞭硬件圖像裁剪的功能拓展，併分析瞭其它拓展功能應用。
위해결성품상궤급자괄응광학계통대래적실시성불고、령활성화공능탁전성차등문제，본문제출료채용CameraLink협의접구、QDRII고속완존、FPGA등진행상궤설계적방법。해방법이용CameraLink고속접구보증료상궤전수대관，장FPGA작위주공단원，사상궤구유가편정특성，보증료상궤령활성화공능탁전성。채용모괴화적설계사로완성료상궤우화설계，병진행료시험험증。결과표명상궤재80 bits모식하8-tap/10-bit격식독출수거솔체6 Gbits/s，264 pixels×256 pixels개창후능실현5200 f/s(정/초)，차겸용CameraLink협의중기타격식。대상궤진행료경건도상재전적공능탁전，병분석료기타탁전공능응용。
Industrial cameras are widely used in Adaptive Optics (AO) systems, which usually cause several problems such as low real-time performance, lack of flexibility and function development. In order to overcome these problems, we proposed a design method based on CameraLink interface ,QDRII high speed memory and FPGA, which guarantee the read-out bandwidth with the help of CameraLink interface, and make the camera programmable using FPGA as main control unit. Modularization method is used to ensure optimal design, and experiments demonstrate its accuracy. Results show that 6 Gbits/s read-out rate can be reached at 80 bits mode with 8-tap/10-bit data format, and 5 200 f/s can also be realized with a 264 pixels×256 pixels window. Moreover, this camera is also compatible with other CameraLink modes. Image cutting function with hardware is developed, and other functions are also analyzed.
