The original driver's field examination system in China was based on infrared technology for scoring. However, due to the hardware weaknesses and technical defects of the system, the examination process was unfair and it could not be used in some rainy, snowy, and foggy weather conditions. Additionally, because it was buried in the examination room, it was inconvenient to maintain and affected the use of the examination during maintenance In order to improve the quality of driver's license exams and ensure fairness and impartiality, the Ministry of Public Security of China has issued Order No. 91, Order No. 111, Order No. 123 and other relevant technical specifications, which put forward improvement requirements for the driving exam system and standards. Following the principle of "simplicity, practicality, accuracy, and reliability", many driving test system integrators have developed new generation products based on GNSS technology, using virtual sensors to achieve precise evaluation and positioning accuracy up to centimeter level. At the same time, the product can simulate real exam scenarios, objectively and quickly judge and output exam results in real time, improving the pass rate of students and the operating costs of driving schools.