What are the functions of ADAS? The core technology of ADAS is introduced in detail. Do you need an ADAS?

Everyone should be familiar with this term. We have heard about "ADAS" in the configuration of many brands of high-end models, driving recorders or smart cloud mirrors. We all know that ADAS has powerful skills in predicting and avoiding risks. And the specific application of ADAS to driving saves us from "disasters"?

ADAS is the abbreviation of Advanced Driver Assistance System, which translates to Chinese means Advanced Driver Assistance System. Simply put, it is to make active judgments and preventive measures before the driver's subjective response in an emergency to achieve the role of prevention and assistance. We can call it a simplified version of autonomous driving-ADAS advanced driving assistance system. Here we have to clarify a concept, ADAS is not the very popular automatic driving now, it can be said that the research focus of the two is completely different. ADAS is assisted driving, and the core is environmental perception, while autonomous driving is artificial intelligence, and the system is very different. However, ADAS can also be regarded as a prerequisite for self-driving cars. Let’s take a look at the auto automation stage diagram released by the National Road Traffic Safety Administration (NHTSA):

According to statistics, ADAS can reduce the accident rate by 70%. Some people can't help asking, "How does ADAS know about dangers and prevent them?" This has to mention the core component of ADAS to realize advanced auxiliary skills: sensors. ADAS sensors are used to detect the state of the car to predict danger. There are mainly cameras, radars, ultrasonics, night vision sensors and V2X (that is, information exchange between cars and cars and the outside world). They are generally installed on the front and rear bumpers, side-view mirrors, inside the steering column or on the windshield of the vehicle. It is these sensors that can realize the powerful skills of ADAS.

Everyone has a deep understanding of the blind spots of rearview mirrors. It is these blind spots of perspective that have caused many accidents. The blind spot detection system of ADAS solves the problem of blind spots. The blind spot detection technology of ADAS uses radar and sensors to detect the blind spot area behind the vehicle. When a vehicle or object approaches in the blind spot area, it will remind the driver to reduce The chance of an accident.

ADAS also benefits many rookies who can't stop. With a parking assist system, you can choose between active and passive modes. The active type means that the system automatically controls the steering wheel, and the driver needs to operate the accelerator, brake, and gear shift by himself. Thereby completing the parking. Passive means that the system will give the owner the information around the vehicle to reduce the chance of collision. ADAS also has a lane departure warning system. As the name suggests, the lane departure warning skill is that when the car deviates from the lane, the controller will issue a warning signal. This process only takes 0.5 seconds. This shows the power of ADAS.

Another function of ADAS-collision prevention system. It is a radar installed on the front of the car to detect the distance and speed of the vehicle and the vehicle in front, and a warning sound will be used to alert the owner at first. If the distance between the vehicles continues to narrow, the vehicle will automatically lightly step on the brakes and lightly pull the seat belt 2 or 3 times to warn the owner. When the system determines that the collision cannot be avoided, it will immediately tighten the safety belt to reduce the owner's injury after the automatic emergency brake is activated. ADAS has a road-adaptive car light system that can automatically adjust the lighting range and angle of the car lights according to different road conditions, environments, vehicle speeds and weather conditions. It can ensure that the vehicle lights have a more far-reaching range, and will not affect the routes of other vehicles and pedestrians. When driving in unknown or bad weather, ADAS night vision skills will be launched! It can automatically identify animals or large foreign objects based on the difference in infrared heat perception, and convert them into images through processing, presenting the originally invisible objects in front of the owner's eyes, reducing driving hazards.

ADAS also scans the road in front of the vehicle to obtain the distance and relative distance of the preceding vehicle based on the distance sensor installed in the front of the vehicle, and detects the speed of the vehicle during driving. When the distance to the vehicle in front becomes smaller and smaller, it will adjust its own speed in real time to ensure a safe distance from the vehicle in front. This is the advanced version of the automatic cruise system, which has been used in many models. The most powerful is the driver's physiological status monitoring system owned by ADAS, which can use the camera to detect the driver's face, determine the level of attention, and whether it is dozing off. When the driver's facial expression changes are reduced, or even when the eyes are closed, a suitable warning is provided to prevent accidents.

If various sensors are the core of ASDS, then our Sanan connector HSD: High-Speed Data, FAKRA/HFM: High-speed Fakra Mini and other connectors and wiring harnesses are one of the nerves. , To deliver and receive information quickly and accurately. Only by having a good and unobstructed nerve can we receive and transmit information faster, make the most correct choice in the shortest time, and ensure our safety.
Sanan has a leading position in the industry. We have mature wiring systems and ADAS solutions. At the same time, our HFM has unique advantages. The characteristic impedance is consistent with 50Ω, the maximum carrying current is 1A, and the cable is universal, which means that in areas with high integration requirements and small space, HFM connectors can be used, and traditional Fakras can be used at the branched functional actuators. That is, one end of the harness is HFM, and the other end is Fakra. Single cavity straight line end male and female connectors; 4K-level camera, reducing space occupied by 25%; dual cavity line end and board end connectors: reducing space occupied by 40%.Sanan is in a leading position in the industry. We have mature cabling systems and ADAS solutions. At the same time, we have unique advantages, the characteristic impedance is consistent with 50Ω, the maximum carrying current is 1A, and the cable is universal.
It has to be said that ADAS has developed rapidly in recent years. It used to be just a selling point and a "gimmick" for high-end luxury cars. Now, ADAS skills are also incorporated into some medium and large vehicles, and some skills in the system are also commonly used in entry-level passenger cars. In our automotive electronic products, there will also be some related configurations of ADAS systems. It seems that ADAS has become a "standard configuration" in the automotive industry. In the future, will driverless be better as an upgraded version of ADAS?