With the development of information and communication technology, cars are moving towards intelligent networking. By carrying advanced on-board sensors, controllers, actuators and other devices, and integrating modern communication and network technologies, intelligent information exchange and sharing between cars, roads, people, cloud and other devices can be realized, with complex environment perception, intelligent decision-making, collaborative control and other functions. At present, the main wireless communication products involved include car radars, The vehicle remote control key, keyless start system, tire pressure monitoring sensor, remote information system, entertainment video system, etc., many countries and regions in the world require mandatory certification of on-board wireless communication equipment.