robots
Sensors pulse laser beams of infrared light from the front bumpers and the laser beams are reflected back to sensors from the vehicle in front. The microprocessor calculates time between sending and receiving these laser signals and then calculates the distance between the two vehicles. If distance less than safe distance, then the microprocessor sends a signal to the actuators to operate the brakes. If distance greater than safe distance the microprocessor sends a signal to operate the accelerator to bring the car up to the set speed. This can be part of an autonomous system where the vehicle requires no human input. Senso rreadings, cameras and LiDaR all give the vehicle information about the surroundings. This is a much safer system as it allows more cars per kilo metre of road space. The downsides include the over-reliance on the technology, and dirty sensors and cameras can make the system malfunction.