ADAS
Advanced Driver Assistance Systems
Introduction
Introduction
Advanced Driver Assistance Systems (ADAS) use electronic technology. Through various sensors installed in the car, it can detect and identify the dynamic environment and objects. The information collected by the sensor is analyzed and processed by ECU, the signal is output to the control device, and then the decision is executed by the actuator. In case of emergency, it can make active judgment and preventive measures before driving subjective reaction, so as to achieve the preventive and auxiliary role and improve the driving safety.
Advanced Driver Assistance Systems (ADAS) use electronic technology. Through various sensors installed in the car, it can detect and identify the dynamic environment and objects. The information collected by the sensor is analyzed and processed by ECU, the signal is output to the control device, and then the decision is executed by the actuator. In case of emergency, it can make active judgment and preventive measures before driving subjective reaction, so as to achieve the preventive and auxiliary role and improve the driving safety.
Operation
Advanced Driver Assistance System (ADAS) is a technology that collects environmental data inside and outside the vehicle at the first time by using various sensors installed on the vehicle, and processes static and dynamic objects identification, detection and tracking, so as to enable drivers to detect possible dangers in the fastest time, so as to attract attention, and active security technology to improve security. ADAS Electronic Design Manufacturing sensors mainly include camera, radar, laser and ultrasound, which can detect light, heat, pressure or other variables used to monitor the state of the vehicle, usually located in the front and rear bumpers, side-view mirrors, inside the driver’s pole or on the windshield.
Sensors
The sensors used in ADAS are ultrasonic, radar, lidar and camera. The ultrasonic sensor uses the reflected sound wave to calculate the distance to the object. It is mainly used for parking assistance, automatic parking and blind area monitoring, and is not affected by light conditions (such as night, sunshine) or weather. Radar detects objects by detecting the time it takes for the emitted radio waves to reflect back from any object in its path.
Radar
At present, ADAS can be divided into three categories: long-range radar, medium range radar and short-range radar. The working frequency of the short-range radar sensor is 24Hz, which is used to monitor the objects around the vehicle. It is usually installed on both sides of the vehicle for blind spot detection and parallel line assistance. When there is a blind spot on the object or the blind spot of the vehicle in the adjacent lane, the short-range radar sensor is used to prevent collision. The main working frequency of the long-range radar sensor is 77Hz, which is used to measure the distance between vehicles at the speed level ahead. Radar has different detection range, so three sensors will be used at the same time to achieve the purpose under adaptive cruise control.
Lidar
Laser uses the light wave of the laser to calculate the time when the light incident on the object reflects back to the scanner. It can accurately calculate the surrounding 3D graphics and detect the object. Its 3D position function can also determine the moving direction of the moving object towards the sensor.
Cameras
Cameras can recognize color and contrast information, so they are widely used in ADAS applications. These are the key to detect road markings, and usually have the ability to classify objects, such as pedestrians and animals. However, the camera is easily restricted by the weather and insufficient light. Thermal imager can assist ADAS to detect people and animals in the range of detection.
ADAS Systems
– BSD, Blind Spot Detection
– APA, Autonomous Parking Assist
– LDW, Lane Departure Warming
– FCW, Forward Collision Warning
– Adaptive Front Lighting System
– NVS, Night Vision System
– ACC, Adaptive Cruise Control
– DMS, Driver Monitoring System
– LKA, Lane Keeping System
– AEB, Autonomous Emergency Braking
– ACC, Adaptive Cruise Control
In recent years, ADAS has become an indispensable part of automobile equipment, and it is also an important key to realize automatic driving in the future. FIC has long-term cooperation experience with the world’s top automobile manufacturers and professional team to provide innovative design and manufacturing technology, and will follow the future automotive technology to provide innovative design and high-quality services. For information about FIC and products, please refer to FIC global information network at www.fic.com.tw or contact globalmkt@fic.com.tw.
In recent years, ADAS has become an indispensable part of automobile equipment, and it is also an important key to realize automatic driving in the future. FIC has long-term cooperation experience with the world’s top automobile manufacturers and professional team to provide innovative design and manufacturing technology, and will follow the future automotive technology to provide innovative design and high-quality services. For information about FIC and products, please refer to FIC global information network at www.fic.com.tw or contact globalmkt@fic.com.tw.
