Intelligent and electronic vehicles are advancing. Unmanned driving is a certain trend in the development of automobiles. There are the internal and external requirements. They are Intelligent cars (ADAS) and Internet of Vehicles (V2X). 5G technology has become a key check and balance. In the V2X of the Internet of Vehicles. 5G will enter the pre-commercial stage in 2019. In 2020, 5G will begin large-scale commercial use. 5G may accelerate the development of the driverless industry. Without human intervention. Autonomous cars can perceive the surrounding environment, through sensors. Plan driving routes. Control the car to reach its destination in safe. The advantages of autonomous driving include:

(1) Reduce traffic accidents and their casualties and costs. It may cause by human operating errors,

(2) Provide a safe and economic trip mode. Especially for the vulnerable groups (elderly, disabled).

(3) Reduce labor costs. Use the time saved for work or rest.

(4) Reduce traffic congestion. Increase the number of vehicles on urban roads. Improve travel efficiency.

The Internet of Vehicles involves many connections. Including people and cars, cars and cars, cars and roads. The large-scale commercial use of 5G is imminent. It is low latency, high density and high reliability. Network opens a breakthrough for the Internet of Vehicles. Earlier, operators said that 5G will enter the pre-commercial stage in 2019. Large-scale commercial use will begin in 2020.

The mechanism of action of millimeter wave radar is as follows. The vehicle-mounted antenna emits millimeter waves. Radar receives the target reflection signal. Treated by the rear. Then obtain the physical environment information around the car. It is quick and accurate. Then perform target tracking and ID sorting. Combine the dynamic information of the car body for data fusion. At last, the central processing unit performs intelligent processing.

In the process of realizing autonomous driving scenarios. V2X is a necessary and value-added technology. One of the keys to V2X is the requirement for communication delay. The reaction time is the response time of each system. Such as braking in automatic driving. This includes time for network cloud computing processing. And includes workshop negotiation processing. And the vehicle's own system calculation and braking processing time. If the speed of 100 km per hour and the braking distance should not exceed 30 cm. The overall response time of the system should not exceed 10 milliseconds. The best human F1 driver's reaction time is about 100 milliseconds.

Unmanned driving is a certain trend in the future. Self-driving has internal and external requirements. They are Intelligent cars (ADAS) and Internet of Vehicles (V2X). Driven by the smart connected intelligence. Smart hardware producing, vehicle system integration, and software platforms will share excess profits.