Vehicle Camera Moitoring System High definition display screen reverse image 7 - inch 9-inch 10.1 - inch truck
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
Installation position : at the left and right rearview mirrors or below the vehicle body
Side view cameras are mainly used for blind spot monitoring of BSD and can achieve forward or backward viewing depending on the installation position At present most car manufacturers choose to install the rearview mirror on both sides of the car below which may replace the inverted rearview mirror in the future
Tesla side view camera
4. Rear view camera
Installation position : Generally installed on the trunk or rear windshield
The rear view camera is mainly used during the reverse process to facilitate the driver's capture of the rear image and achieve parking assistance function .
Rear view camera sourced from Guangbao Technology
5. Built in camera
Installation position : There is no fixed position it can be found in the steering wheel above the inner rearview mirror at the A - pillar or integrated into the instrument display screen .
Due to the fact that existing autonomous driving is only located at level L2 - 3Human driver intervention is also required Therefore the driver monitoring system DMS has become a solution in ADAS The existing DMS solutions mainly rely on AI recognition using near - infrared cameras This camera is located in front of the driver and can capture complete facial information
Xiang Jian : Innovative Application of Camera in Intelligent Cockpit
In addition some manufacturers have extended from DMS systems to OMS passenger monitoring systems which can effectively prevent rear row children or children from being forgotten in the car
Of course the ADAS sensor of a car is not limited to the five types of cameras mentioned above in order to achieve redundancy in the perception system and ensure safety The host factory will basically adopt multi - sensor fusion combining millimeter wave laser ultrasonic and other radars and the number of cameras is likely to increase
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