ADAS is an application that assists the driver while driving. Most accidents are caused by human error. The number of accidents can be avoided with such systems and prevent deaths and injuries.
ADAS application includes
- Recognize the traffic signs
- Lane change warning
- Automatic emergency braking
- Detect the pedestrian
- Detect the blind spot
These features make the driver comfortable driving the vehicle in congested areas like markets, and streets. Correspondingly, ADAS runs multiple vision-based algorithms to support real-time multimedia, sensor fusion subsystems, and vision coprocessing.
Working of ADAS
In automobiles, the application is partitioned into different chips, called systems on a chip(SoCs). Through the interface, these chips connect sensors to actuators and high-performance electronic controller units(ECUs).
ADAS Applications
Some applications make driving easy. The most common app is:
- Adaptive Cruise control
- Adaptive light control
- Automatic parking
- Navigation system
- Night vision
- Monitoring the unseen area
- Automatic emergency braking
- Driver Monitoring System
Adaptive Cruise control:
It is helpful on the highway to run vehicles at a defined speed, defined by the driver. However, it can automatically slow down and accelerate the vehicle depending on the immediate area.
Adaptive light control:
It adjusts vehicle headlights according to environmental lighting conditions. Moreover, it adjusts the strength and direction of headlights according to the environment’s darkness.
Automatic parking:
By a combination of multiple sensors’ input, the vehicle can park itself by monitoring the area without the driver’s help. Parking sensors help the driver to park the vehicle by informing the details about the unseen area. Parking sensors also guide the driver to when and in which direction to turn the steering wheel.
Navigation system:
It helps the driver to concentrate on the road while driving by informing him, which path needs to be followed on-screen and by voice prompts. It also displays the traffic data and can plan a new route to avoid traffic jams.
Night vision:
This system helps the driver to see things in the dark which are sometimes difficult or impossible to see at night. It has two categories of implementations which are active night vision systems that project infrared light and passive systems that rely upon thermal energy.
Monitoring the unseen area:
The sensors inform the driver about the unseen areas which is difficult for a driver to make assumptions about the distance from the vehicle. It alerts the driver about the unseen object by alarming sound.
Automatic emergency braking:
This feature works when it detects any kind of object on the road that comes in range, that may create a chance of an accident, the system applies the brakes and slows down the vehicle. When sensors detect chances of an accident apart from applying the brakes, it also tightens seat belts and engages adaptive steering to avoid a collision.
Driver Monitoring System:
This system analysis the attention of the driver, whether the driver’s eyes are on the road or not. It alerts the driver by vibrations in the steering wheel, noise, or lights. If the system doesn’t get any kind of response from the driver, it will apply breaks and slow down the vehicle’s speed.
Importance of ADAS
With an increased number of vehicles on roads these days, the number of accidents is also increasing. Out of every 100 accidents, 90 accidents occurred by human error, and the rest 10 accidents were due to natural disasters like earthquakes, storms, etc.
Moreover, Adas plays an important role here to reduce the number of accidents occurred by human errors. Adas applications assist drivers with safety-critical functionality to reduce car accidents and save lives.
Limitations of ADAS
There is some limitation of the ADAS system that we observe on regular basis and also get affected by them. Some limitations of the ADAS system are:
- Only available in top-end models: Due to its cost, ADAS is available only in top-end models. Base models don’t have an ADAS system, so difficult for the drivers who have base models.
- Cost: Due to combining the different technologies including RADAR, LiDAR, and cameras, ADAS cost has increased.
- Regular Updating: ADAS is based on such technologies that it must need to updated on regular basis for its improvement. New updates in software and be installed but unable to install hardware stuff on regular basis. There are some other limitations of ADAS, which need to be overcome.
In short, an ADAS system is a combination of different technologies, based on different algorithms, that work help of three sensors including RADAR, LiDAR, and a camera.
