What are the major systems of ADAS?

ADAS (Advanced Driving Assistant System) refers to advanced driving assistance systems

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The major systems of ADAS refer to:

Firstly, monitoring the physiological state of the driver

At present, most systems use cameras to detect the driver's face, determine the level of concentration, and whether there are signs of drowsiness. Some systems also use the frequency of the driver's eyes opening and closing to identify safety levels, provide appropriate warnings or assist actions. If the driver's facial expressions decrease or even close their eyes, the vehicle will use sound and light signals to alert the owner to pay attention and reduce the occurrence of accidents.

Second: Lane departure warning system LDW

The system consists of cameras, sensors, and controllers. The principle is to use cameras on the side of the vehicle or rearview mirrors to sample the marking lines of the current driving lane, and then obtain the current position of the car in the lane through image processing. At this time, as long as the car deviates from the lane, the controller will issue an alarm signal. The process from sensing to issuing the alarm only takes about 0.5 seconds to remind and wake up the driver in real time, avoiding accidents.

Third Blind Spot Detection System

The blind spot of a car driver refers to the area that cannot be seen from the left, right, and inside of the three rearview mirrors. I believe many drivers have a deep impression of blind spots, which are also one of the common accidents in many accidents. The blind spot detection system uses radar and sensors to detect the blind spot area behind the vehicle. When a vehicle approaches in the blind spot area, it will provide a warning to the driver, helping them minimize the probability of accidents.

Fourth Parking Assistance System

ADAS's parking system benefits many beginners who cannot park. There are two types of parking assist systems, namely active and passive. The former system automatically controls the steering wheel to assist the driver in parking, but of course, the accelerator, brake, and gear shift still need to be controlled by the owner themselves. The latter is composed of imaging (camera) and audio-visual (ultrasonic) sensing units, providing more information about the surrounding area of the vehicle for car owners to grasp and reducing collision opportunities.

Fifth collision prevention system FCW

The radar installed at the front of the vehicle detects the distance and speed between the vehicle itself and the vehicle ahead. Initially, it will emit a warning sound to remind the driver to pay attention to the distance between the vehicles. If the distance continues to narrow, the vehicle will automatically lightly step on the brake and pull the seat belt 2-3 times to warn the driver. If the system determines that a collision cannot be avoided, it will activate the automatic emergency brake (AEB) and immediately tighten the seat belt to fix the driver and reduce the risk of injury in the event of an accident.

Sixth road adaptive lighting system

The system can automatically adjust the illumination range and angle of the car lights according to different road conditions, environments, vehicle speeds, and weather conditions, so that the illumination range of the car lights can be further extended without affecting the vision of other pedestrians, providing safer and more comfortable illumination for the driver and oncoming vehicles. From the AFS active steering headlights in the past to the multi LED intelligent headlights combined with sensors now, they all belong to the scope of this system.

Seventh Night Vision System

Assisting driving can automatically identify animals or large foreign objects on nights with unclear visibility or in adverse weather conditions, while warning the driver of the road conditions ahead to avoid accidents. The identification method is to perceive the difference in heat through infrared radiation, distinguish the differences between people, animals, vehicles, and the environment, process them into images, and present objects that were originally unclear to the driver to reduce driving risks

The eighth active distance control cruise system, ACC

By installing a distance sensor at the front of the vehicle, it continuously scans the road ahead to determine the speed and relative distance of the preceding vehicle. During driving, it automatically detects the speed and adjusts its own speed accordingly as the distance from the preceding vehicle decreases, maintaining a safe distance and reducing the occurrence of collision accidents. This is known as the advanced version of the automatic cruise control system, which can be seen on many car models.