What smart devices do smart cars have?

There is such a car, driving along the road. If someone suddenly crosses the road from the roadside in front, or finds any obstacles temporarily, the car will automatically brake immediately. When passers-by have passed, or obstacles have been cleared, it will slowly start and move on. This is the smart car recently developed abroad. It can automatically start and brake, and can automatically bypass general obstacles and move forward smoothly. Its main feature is that it can "improvise", automatically choose the best scheme, and manipulate and drive the car in complex situations.

The control and drive system of smart car consists of three parts: road image recognition device, small electronic computer and automatic switch controlled by electric signal. This road image recognition device is two TV cameras installed in front of the car. It is like a person's "eyes", used to identify obstacles in front. Why use two TV cameras? This is because the electrical signals obtained by two TV cameras can distinguish shadows from obstacles. This road image recognition device can clearly see the space 5-20 meters ahead and scan 1 6 positions at the interval of1meter. According to the motor vehicle's sports performance, the object whose height exceeds 10 meter is treated as an obstacle. When scanning, if there is an obstacle in front, it will send out an electric pulse. Because of scanning 16 position, the distribution of obstacles in front can clearly identify people.

Small electronic computers, like the human brain, are used to make judgments and decisions. After obtaining the information from the road image recognition equipment, it is necessary to make a judgment: should the car continue to drive, or stop, reverse and slow down? These should be based on the local actual situation at that time, to choose the next step that can best adapt to the environment. Designers fully estimate various situations in advance and input the best groups of control parameters into the memory of the electronic computer. When driving, just use the computer to search accordingly. When a car is driving, it must obey the traffic rules and obey the command of the traffic police and traffic signs. Therefore, the electronic computer of smart car also has the ability to accept, store and process this information.

In smart cars, the switch controlled by human hands and feet in the past has become an automatic switch controlled by electrical signals. Steering gear, throttle valve, brake, etc. The engine of a car is also controlled and operated by command signals. The steering angle can reach 120 degrees, the speed is 0 ~ 60 kilometers per hour, and the negative braking acceleration is 0 ~ 0? 3m/s2. According to the prior arrangement, it takes the passengers to the designated place according to the designated route. When driving, you can change or overtake the vehicle in front.

At present, smart cars are only used on sunny days. If it is to be used in cloudy days and at night, it needs further exploration. Once this problem is solved, it can be widely used.