
















摘" 要: 隨著汽車電子技術的進步,FPD?Link Ⅲ作為高速串行視頻傳輸接口,正廣泛應用于智能座艙系統。為對其進行檢測,提出一套基于DS90UB948解串芯片的FPD?Link Ⅲ視頻處理方案。系統采用ZYNQ作為處理核心,對解串芯片輸出的并行信號進行圖像壓縮拼接和輸出,輸出的拼接視頻流用于實時顯示。采集的單路圖像用于質量檢測,通過圖像相似度算法進行定量分析。實驗結果表明:系統可正確接收、處理三路FPD?Link Ⅲ視頻流,拼接圖像連貫流暢,采集圖像清晰;并且SSIM圖像相似度算法可準確定位異常通路,滿足了FPD?Link Ⅲ的質量驗證要求,為構建高階智能駕駛仿真測試平臺的圖像采集與傳輸提供了技術支持與保障。
關鍵詞: FPD?Link Ⅲ; 智能座艙; 座艙域控制器; 視頻壓縮; 視頻拼接; SSIM
中圖分類號: TN919?34; TP274" " " " " " " " " "文獻標識碼: A" " " " " " " " " " " 文章編號: 1004?373X(2025)02?0021?08
Design of intelligent cockpit domain controller FPD?Link Ⅲ detection system
WU Bin1, ZHENG Yongjun1, WANG Xueying1, GUO Bin1, 2
(1. College of Metrology amp; Measurement Engineering, China Jiliang University, Hangzhou 310018, China;
2. Wolei Intelligent Technology Co., Ltd., Hangzhou 310018, China)
Abstract: With the progression of automotive electronic technology, FPD?Link Ⅲ, as a high?speed serial video transmission interface, is extensively employed in intelligent cockpit systems. In order to conduct its examination, a FPD?Link Ⅲ video processing solution based on the DS90UB948 unstring chip is proposed. In this system, ZYNQ is used as the processing unit to compress, splice, and output the parallel signals output by the unstring chip. The output splice video stream is used for real?time display. The collected single image is used for quality detection, and the image similarity algorithm is used for the quantitative analysis. The experimental results show that the system can receive and process three channels of FPD?Link Ⅲ video streams correctly, providing coherent and smooth spliced images along with clear captured images. The SSIM image similarity algorithm can accurately locate abnormal paths, meet the quality verification requirements of FPD?Link Ⅲ, and provide technical support and guarantee for image acquisition and transmission of the construction of high?level intelligent driving simulation test platform.
Keywords: FPD?Link Ⅲ; intelligent cockpit; cockpit domain controller; video compression; video stitching; SSIM
0" 引" 言
隨著汽車電子技術的不斷進步,汽車行業正迎來一場巨大的變革。汽車已經從簡單的機械交通工具變成復雜的移動平臺,現代汽車智能座艙中液晶顯示器、車載娛樂系統及駕駛信息顯示屏不斷增多,為駕駛員和乘客提供了豐富的信息和娛樂方式[1?3],但也對視頻傳輸帶來了巨大的挑戰。
傳統的視頻傳輸接口有USB、MIPI、Camera Link等。其中USB傳輸帶寬低,難以滿足高清視頻傳輸需求;MIPI傳輸距離有限,對電磁干擾較為敏感;Camera Link雖提供了高帶寬,但是抗干擾性差、成本較高,難以用于工業量產[4?5]。相比之下,FPD?Link接口集高帶寬、抗干擾性以及成本效益于一身。發展到第三代的FPD?Link Ⅲ芯片組滿足AEC?Q100汽車可靠性標準和ISO?10605電磁兼容性標準,為車載攝像系統、顯示器面板等圖像傳輸[6?8]提供了解決方案,其應用領域還擴展至醫療、航空工程的圖像傳輸[9?10],得到了這些行業的高度認可。……