Front view camera, windshield camera, car ADAS camera operation manual, installation site

Front view camera, windshield camera, car ADAS camera operation manual, installation site
Front view camera, windshield camera, car ADAS camera
In recent years, the installation rate of advanced driving assistance systems for ADAS cameras in automobiles has been rapidly increasing. Looking at major manufacturers,
Installation position: Generally located at the windshield and interior rearview mirror.
The camera used for forward driving assistance, commonly referred to as the front camera, is mainly used to recognize road vehicles and pedestrians ahead, with a viewing angle of about 45 °. The image sensor, combined with a dual core MCU extended by DSP, provides incoming video frames for image processing, monitors the situation ahead of the road, and can achieve auxiliary driving functions such as FAM, LDW, ACC, etc. In addition, emerging night vision cameras are generally also in this area.
There are multiple classification methods for existing cameras: based on the number of CMOS lenses in the camera, we classify it into monocular and binocular; According to the camera's perspective, there are wide-angle and fisheye.
In this article, the editor uses classification based on the installation position of the camera and its different field of view. It is generally divided into front view, rear view, surround view, side view, and inner view cameras. The editor has compiled an introduction to the application of some cameras in vehicles for reference; Forward facing cameras are commonly single/binocular cameras, which have better ranging performance but more complex algorithms and higher prices. The number of cameras at the front view camera is not fixed, for example, Tesla is equipped with three cameras:
Forward facing narrow field of view camera, with a maximum monitoring distance of 250 meters;
Forward facing main field of view camera, with a maximum monitoring distance of 150 meters;
Forward facing wide field of view camera, with a maximum monitoring distance of 60 meters.
The forward facing camera is the core camera of ADAS, covering ranging, object recognition, road markings, etc. Therefore, the algorithm is complex and the threshold is high.
2. Surround camera
Installation location: front and rear vehicle logos (or nearby), as well as a set of cameras integrated into the left and right rearview mirrors
The surround view camera, also known as a panoramic image monitoring system, is used to identify parking lane signs, road conditions, and surrounding vehicle conditions. It uses images from multiple cameras for splicing, providing a 360 degree imaging of the vehicle. Due to the need for detecting the surrounding sound of the vehicle, it is generally installed at positions such as the vehicle logo or grille in front of the vehicle.
Schematic diagram of surround view image monitoring system
The surround view camera on Nissan's Infiniti EX35 car released in 2007
A multi camera integrated system with front view and 360 degree visibility launched by Continental Group in 2019
At present, forward and surround vision are the most widely used camera applications.
3. Side view camera