What can AI do? Similar intelligent scenes are not uncommon in production and life, from driverless cars driving on the street to robots cooperating in factories. In China, AI has been widely used in the fields of automatic driving and smart cities, and has become an important driving force to improve the quality of life and promote industrial optimization and upgrading. Industry insiders believe that AI will show its skills in more fields of production and life, driving the development of new technologies, new products and new formats. "Countdown of traffic lights" is also accurate. Recently, when Ms. Li, a Beijing resident, was waiting for a red light on the commuter road, she suddenly found that the mobile phone navigation used could display the countdown of traffic lights. "At that time, the red light was still on, and the mobile navigation reminded me that I was ready to start. The light turned green in five seconds, and the result was not bad." Since last year, the navigation software such as Gaode Map and Baidu Map have launched the traffic light countdown function, providing many drivers with travel convenience. Ms. Li told the reporter that if there is a traffic jam, the navigation system can also display the number of times to wait for the red light, which is basically accurate. It is simply a "prophet". The reason why the "prophet" can "predict" the road conditions is that the "magic" in his hand is artificial intelligence. According to a relevant person from Gaude, this function is based on a large number of vehicle driving data at the intersection, through artificial intelligence and digital technology to learn and analyze, so as to more accurately "predict" the red light countdown reading of the second level change. From the navigation software of "predicting" traffic lights to the intelligent road network monitoring and command system, from the navigation robot that can talk freely with people to the unmanned aerial vehicle that monitors the growth of crops on the farmland... these emerging innovative applications are all realized by relying on artificial intelligence technology. Last August, the Ministry of Science and Technology released the Notice on Supporting the Construction of New Generation of Artificial Intelligence Demonstration Application Scenarios, which supported the construction of 10 demonstration application scenarios such as smart factories and automatic driving in the first batch to further promote the integration of artificial intelligence and production and life scenarios. "AI can not only support human's exploration of the sea of stars, but also really improve people's production and life." Wang Haifeng, Baidu's chief technology officer, believes that AI technology has shown a trend of low threshold, automation and scale in application, and various industries will accelerate to embrace AI. To make AI better to use AI, we need to change from "usable" to "usable", and also need the master to "guide the maze". Zhao Jianbo is a driving school coach in Beijing. Under the introduction of his colleagues, he participated in the development of an automatic driving software system and became the "AI trainer". "We will mark the key factors affecting driving safety, such as vehicles, pedestrians and buildings, in the pictures and video materials reflecting various real road conditions, which is equivalent to helping AI draw the key points in a large number of learning materials." Zhao Jianbo believes that there are many "old drivers" in the team like himself. Although we are not familiar with AI and programming, we have rich experience in driving in complex road conditions. "We personally drive to show AI how to safely complete overtaking, merging, following and other actions, and assist engineers to optimize the system algorithm, so that AI can grow from 'novice on the road' to 'seeing six ways'." The master led the way in and practiced on his own. With the development of artificial intelligence