Ultrasonic sensor The ultrasonic sensor simulates the navigation mode of the bat, and uses the time difference from the transmission to the reception of the ultrasonic wave to determine the position of the obstacle. In the future self-driving and semi-autonomous driving cars, the ultrasonic sensor can be used to identify the distance from the obstacle to the car.
Image sensor The image sensor simulates the vision of a human being, using several cameras to synthesize an image of the environment around the car, and the stereo camera can also generate a 3D image. In the application of the Internet of Vehicles, the image sensor can not only recognize the distance, but also recognize the color and font, such as traffic lights and signs, and can also be used as a backup system when other sensors fail to increase safety.
Radar sensor The basic principle of the radar sensor is also through the reflected signal after the electromagnetic wave encounters an obstacle, which can calculate the distance and approach speed between the car and the obstacle in real time. The long-range radar and short-range radar installed around the car body can track other objects in real time. The speed of the vehicle and improve safety by increasing the redundancy of automated driving.