Advanced Driver Assistance Systems (ADAS) is an intelligent system that uses various sensors installed in the car to detect, identify and track the environment inside and outside the car, and actively assist the driver in various ways. These systems can provide real-time traffic information, such as road closure or congestion, the degree of congestion, suggested routes to avoid congestion, etc.; it can also be used to judge the fatigue or distraction of drivers, so as to issue alarms or make recommendations; Take over the work of the driver when a threat is detected-perform simple tasks (such as cruise control) or difficult operations (such as overtaking and parking). The biggest advantage of using ADAS is that they can realize communication between different vehicles, vehicle infrastructure systems and transportation management centers, thereby optimizing decision-making and improving overall traffic.
From passive to active ADAS pursues zero traffic accidents
Most road traffic accidents are caused by human error, and ADAS based on automation, intelligence and safety has been proven to reduce the chance of human error and reduce the number of accidents and deaths. Including automatic emergency braking, pedestrian detection, surround view, parking assistance, driver fatigue detection… are all part of ADAS applications, these applications can provide drivers with safety-critical functions to reduce car accidents and save lives. Through the vision of “pursuing zero traffic accidents”, ADAS will challenge automakers to provide the best possible technology in all fields and countries as a standard. It will not only help protect drivers and passengers, but also solve general road users as much as possible. Security issues.
Major improvements to car safety in the past, such as broken glass, three-point seat belts, airbags, etc., are all “passive” safety measures aimed at minimizing injuries in accidents; however, with the help of AI vision technology, the ADAS system “Active” to improve the safety of car driving, such as the addition of AI functions to car lenses, will integrate sensors with functions similar to the processing of information by the human brain. With the help of AI image recognition, Lida and Ultrasonic sensors, ADAS can cover 360 degrees and analyze a large amount of data in real time. It has the ability to surpass the human eye in severe weather and light conditions, and Respond faster than human driving.
10 common systems in ADAS
At present, most new models are equipped with ADAS, and as automakers continue to introduce new models, the system functions are also innovating. Generally, common ADAS roughly includes the following systems:
- Active distance control cruise system
Active distance control cruise system (ACC) is particularly useful on highways. On highways, it is difficult for the driver to maintain an accurate and safe distance from the vehicle ahead. The advanced cruise control system can detect the vehicle’s speed based on the radar sensor The action automatically accelerates/decelerates or stops.
- Road suitability car light system
The glare-free high beam uses sensors to adapt to the darkness and surroundings of the vehicle without affecting oncoming vehicles or pedestrians. This new front light application can detect the lights of other vehicles and redirect its own lights to an appropriate distance to prevent other road users from being too dazzling to see the front.
- Parking assistance system
The parking assist system helps inform drivers of blind spots that cannot be seen so that they know when to turn the steering wheel and stop. Vehicles equipped with rear-view lenses can observe the surrounding environment better than traditional rear-view mirrors. Some systems can even combine the input information of multiple sensors to automatically complete the parking without the assistance of the driver.
- Navigation system
The car navigation system provides on-screen instructions and voice prompts to help the driver follow the route while focusing on the road. The navigation system can display accurate traffic information and re-plan new routes when necessary to avoid traffic jams, and even provide a head-up display (HuD) to reduce driver distraction.
- Night vision system
Night vision systems enable drivers to see things that are difficult or impossible for the human eye to see at night. The technology is roughly divided into two categories: active night vision systems project infrared light, and passive systems rely on signals from cars, animals, and other objects. Thermal energy.
- Blind Spot Detection
Blind spot detection systems use sensors to provide drivers with important information that is difficult or impossible to obtain. Some systems will alert when they detect objects in the driver’s blind spot, such as when the driver tries to drive into an occupied lane. .
- Automatic emergency brake assist system
Automatic emergency brake assist uses sensors to detect whether the driver is about to hit another car or other objects on the road. This application can measure the distance of nearby traffic and alert the driver of any danger. The emergency brake assist system can take preventive safety measures, such as tightening the seat belt, reducing the speed, and steering autonomously to avoid collisions.
- Electronic Stability Control(ESC)
An active safety system for automobiles, which can greatly improve the safety factor of vehicle handling. When emergencies such as emergency cornering, emergency acceleration and emergency braking occur, the vehicle can quickly sense and take corresponding measures, such as individual control of each tire, while reducing engine output and maintaining the stability of the body.
- Driver fatigue detection
Driver fatigue detection will warn the driver of being tired or distracted by other things. There are several ways to determine whether the driver’s attention is decreasing. For example, the sensor can analyze the driver’s head movement and heart rate. To determine if they are dozing off due to fatigue. The system can remind the driver to rest or guide the vehicle into the rest area through noise, steering wheel vibration or flashing lights.
- 5G and V2X
This popular new 5G ADAS feature has higher reliability and lower latency, and can provide communication between the vehicle and other vehicles or pedestrians, commonly referred to as V2X. Today, millions of vehicles are connected to cellular networks for real-time navigation. 5G will enhance the transmission quality and speed of existing networks to improve vehicle perception, control or suggest speed adjustments to solve traffic congestion problems. Update the GPS map. V2X also supports over-the-air programming (OTA) of the current extensive automotive software drive system.
In the future, ADAS will realize vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I or V2X) wireless network connections. In short, the automotive ADAS system will be able to provide a more powerful and safer autonomous driving experience. Therefore, major safety measures such as automatic emergency braking (AEB), automatic emergency steering (AES), automatic cruise control (ACC), and forward collision warning (FCW) are becoming more and more important. With the acceleration of the development of ADAS, automotive safety ratings have also included more and more ADAS and collision avoidance technologies.
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