主办：陕西省汽车工程学会
ISSN 1671-7988  CN 61-1394/TH
创刊：1976年
Automobile Applied Technology

Automobile Applied Technology ›› 2023, Vol. 48 ›› Issue (13): 202-206.DOI: 10.16638/j.cnki.1671-7988.2023.013.040

• Standards·Regulations·Management • Previous Articles    

Analysis and Discussion on Camera Monitor Systems Latency and ISO Standard

GUO Zhiyou1,2, DENG Yi1,2 , JIANG Wei3 , MEI Yun1 , XIE Changxin1   

  1. 1.Guangdong Sammoon Auto Electronic Company Limited 2.Foshan Sammoon Intelligent Electronics Company Limited 3.Changchun Fawei Automobile Mirror System Company Limited
  • Online:2023-07-15 Published:2023-07-15
  • Contact: GUO Zhiyou

电子后视镜延时与 ISO 标准分析及探讨

郭志友 1,2，邓 蚁 1,2，姜 伟 3，梅 云 1，谢长鑫 1   

  1. 1.广东省三目汽车电子有限公司2.佛山市三目智能电子有限公司3.长春富维汽车视镜系统有限公司
  • 通讯作者: 郭志友
  • 作者简介:郭志友（1959－），男，教授级高级工程师，研究方向为第三代半导体科学技术、成像与非成像光学技术和 汽车电子，E-mail:guozy@sammoon.com.cn。

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Abstract: As a vehicle vision device, camera monitor systems (CMS) has been applied and subverted the concept of traditional physical rear-view mirrors, so that visual performance has been significantly improved, among which system delay is an important technical index, and also poses a new challenge to manufacturing enterprises. Combining the inherent characteristics of CMS hardware circuit and software image processing, this paper expounds the influence of different system delays on vehicle driving conditions, at the same time, the causes and solutions of the CMS latency are analyzedstudies. The results show that the optimal range of CMS latency is ≤33.33～ 43.33 ms.

Key words: CMS latency; ISO standard; Distance difference; CMOS image sensor; 17.78 cm (7 inch) display screen

摘要： 作为汽车视野装置的电子后视镜（CMS）已经被应用，并颠覆了传统物理后视镜的理 念，使视觉性能得到明显提升，其中系统延时是其重要技术指标，对于制造企业也提出了全 新挑战。文章结合 CMS 硬件电路和软件图像处理固有特性，阐述了不同系统延时对汽车行驶 状况影响，同时分析了 CMS 延时产生的原因以及解决途径，结果显示，CMS 延时的最佳范 围为 33.33～43.33 ms。

关键词: CMS 延时；ISO 标准；距离差；CMOS 图像传感器；17.78 cm（7 寸）显示屏