The main functions of the app: 1. Log in: log in to the platform's management server through the server IP address, communication port, user name, and password to check all vehicle-related information; 2. Remotely view live video: Users can check the online vehicle and watch the real-time camera video of remote vehicles to monitor vehicles’ running condition and safety status; 3. View the video data remotely: Users can remotely view the historical video data of specified vehicle, recorded videos