汽车后视安全辅助系统解决方案——Ameya360电子元器件平台

Release time：2020-05-21
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source：Ameya360
reading：1800

1、前言

　汽车后视安全辅助系统能够在复杂的车辆操控过程中为驾驶员提供辅助和补充，并在未来最终实现无人驾驶。提供的功能包括自适应巡航控制、盲点监测、车道偏离警告、夜视、车道保持辅助和碰撞警告系统，具有自动转向和制动干预功能。可部分控制车辆的移动，预防事故发生。这些自动安全功能为今后的自主驾驶汽车铺平了道路。从当今的安全辅助车辆，到未来的自主驾驶汽车。
2、方案概述

Ameya360 汽车后视安全辅助系统解决方案的后视摄像头系统可以帮助驾驶员发现车后的物体或人员，以便在确保安全的情况下倒车并顺利停车入位。高级系统中部署 100 万像素的高动态范围（HDR）摄像头，并通过非屏蔽双绞线实现高性价比的高速以太网连接和视频压缩。其他系统要求包括适当的物理层接口和电源。高度集成的 32 位 MCU 采用 Power Architecture 技术，能够处理视频流化和摄像头控制，将所需的通信带宽降低至 100 Mbps 以下。MPC5604E MCU 采用低延迟视频压缩和智能带宽管理来提高图像质量。MCU 支持与以太网 AVB 兼容的 IEEE 802.1AS 精确时间协议（PTP），可实现摄像头曝光的精确同步。多摄像头环视泊车辅助系统可以采集车辆四周的图像，并以虚拟俯视图的形式在屏幕上显示。视角会根据行车轨迹而动态移动，提供车辆四周 360 度的画面。


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