T-BOX (gateway) is mainly used for vehicle pre-installation, with a high degree of coordination with the vehicle body. The degree of use in the vehicle is constantly expanding and extending, and it attaches importance to user experience. It can collect vehicle information, such as vehicle location, vehicle status, etc. Users can send instructions to the smart terminal through mobile phone APP or web pages to monitor and control the vehicle. It can be deeply integrated with various controllers of the car to realize remote control of vehicle-mounted equipment. The Internet of Vehicles system consists of four parts: the host, the vehicle-mounted T-BOX gateway, the mobile phone APP and the background system. The host is mainly used for audio and video entertainment in the car, as well as vehicle information display; the vehicle-mounted T-BOX gateway is mainly used to communicate with the background system/mobile phone APP to realize the vehicle information display and control of the mobile phone APP, and the information interaction between vehicles and vehicles, and between vehicles and surrounding network devices. The strength and weakness of the antenna signal seriously affect the interaction of communication, security, big data, cloud platforms, etc.