Unmanned vehicles can be called wheeled mobile robots is a smart car, mainly rely on the car to the computer system-based intelligent driver to achieve unmanned, intelligent transportation is one of the direction of development. From the 1970s onwards, the United States, Britain, Germany and other developed countries began to unmanned vehicle research, in the feasibility and practical aspects have Sensor made a breakthrough. Until now, unmanned vehicles, although not widely put into use, but its research has never stopped in the United States, many companies are involved in the test of unmanned vehicles.
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There is a university town in the city of Amber, Michigan, 40 miles west of Detroit. Black steel plate and 8 feet high wire mesh wall together, just behind the wall has a secret base, it is breeding the future of the automotive industry. Mcoshi is one of the world's five unmanned vehicle test sites, and car manufacturers and technology companies are struggling to build a perfect autopilot and do not want their competitors to know what they are doing The Although companies are constantly grinding technology, cars have been able to find their own way, but they still face a big challenge: the prospect of technology is unlimited.

  While ensuring car safety, car companies and regulators have decades of experience, but they have not found ways and means to prove the reliability and safety of unmanned vehicles. A sunny afternoon, from the gap in the baffle, a Lincoln MKZ sedan, installed above the sensor, two engineers sitting in the front row. The car was cautious toward the crossroads, it slowly stopped and then turned right, of course slightly, the car turned on the turn signal. Black car into the artificial city. It was not long before a white Lincoln MKS entered the field of vision, which traveled fuel metering valve at a speed of 25 miles per hour, turned a big turn to the left, and then entered the city. And after a moment, two cars parked side by side in the green road logo. The researchers came out and checked the roof sensor. After a long break, the two cars repeat the same process, but the speed adjustment, the speed is much slower than the car on the road. Tested by the people to command, the process is very cautious, because the unpredictable challenges too much, almost infinite, such as falling branches, black ice, reckless drivers, children rushed to the streets.
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There are many questions about the safety of new technologies, which are real and influential. Audi executives talked about the difficulties faced by unmanned vehicles, such as the distinction between shopping carts and baby carriages is a big challenge. Delphi also pointed out in the report, the system is difficult to distinguish traffic lights. Despite the installation of a lot of sensors and processors, unmanned vehicles in the daily driving still encountered many difficulties. Under the command of the man, its unmanned car has been in Mountain View, California near Temperature Sensor the road driving more than 1.5 million miles. Road test is still far from the target. The test needs to test whether an unmanned vehicle is able to respond correctly to the real world. For example, the shadow of the building will slow down, and some can not be created and can not be repeated. To find the problem, it is very difficult to adjust the sensor.