Electric automobile safety prewarning protection system and method based on cloud service vehicle-mounted terminal

The invention relates to an electric automobile safety prewarning protection system and a method based on a cloud service vehicle-mounted terminal. The electric automobile safety prewarning protection system comprises a vehicle-mounted terminal and a cloud service terminal, wherein the vehicle-mounted terminal and the cloud service terminal directly communicate with each other wirelessly; and the cloud service terminal comprises an encryption service, a decryption service, a data storage server, a rescue guide server, a prewarning analysis server, an overhaul plan server and a battery tracking server and is used for finishing rescue guide, prewarning analysis, overhaul plan making, battery tracking and data cloud backup according to data sent by the vehicle-mounted terminal. The electric automobile safety prewarning protection system can monitor a battery box of an electric automobile all around and perform prewarning and treatment on battery safety from multiple layers and different angles; phenomena of spontaneous combustion and loss of the battery and automobile accidents are avoided; and the safety of people and the service life of the battery are guaranteed. Due to data storage supplied by the cloud service terminal, problems of data loss, virus invasion and the like are solved; and because of complete data, powerful basis is supplied to later-stage reason analysis for electric automobile accidents and safety prewarning and analysis for the electric automobile.