Upgrading method of vehicle-mounted terminal system

Abstract

An upgrading method of a vehicle-mounted terminal system comprises the steps that a vehicle-mounted terminal is connected to an upgrading server through a wireless network, and the vehicle-mounted terminal is provided with two system starting partitions and a safe storage area. The vehicle-mounted terminal and the upgrading server perform bidirectional authentication through respective digital certificates and determine a session key for communication between the vehicle-mounted terminal and the upgrading server, and THE subsequent communication between the vehicle-mounted terminal and the upgrading server is encrypted through the session key. The vehicle-mounted terminal identifies one system starting partition as to-be-upgraded and sends upgrading request information to the upgrading server, and the upgrading request information comprises the system software version numbers of the two system starting partitions and the vehicle information. After receiving the upgrading request information, the upgrading server sends upgrading information. The vehicle-mounted terminal downloads the system upgrade package from the upgrade server, and the vehicle-mounted terminal upgrades the systemstarting partition to be upgraded through the system upgrading package. According to the present invention, the problem that the vehicle-mounted terminal cannot be started due to upgrading failure can be avoided, the safety is high, and it is guaranteed that data cannot be tampered and monitored.

Description

technical field [0001] The invention belongs to the technical field of vehicle-mounted terminals, and in particular relates to a method for upgrading a vehicle-mounted terminal system. Background technique [0002] Since the vehicle infotainment system is a software system, after the production of the equipment is completed, there will inevitably be bugs in the use of functions, such as black screens, freezes, or serious problems such as unusable functions. At this time, the system must be upgraded to solve bad question. The upgrade methods of the current car infotainment system are generally as follows: [0003] First, the user drives to the 4S store and the staff upgrades it. [0004] Second, download the upgrade package online by yourself, and upgrade through the usb / sd card. [0005] Third, the car-machine system itself downloads the upgrade package through the network, and then upgrades itself. [0006] There are some security problems in the above upgrade methods, ...

AI Technical Summary

Problems solved by technology

[0006] There are some safety problems in the above upgrade methods, for example: if the power is cut off during the upgrade process, the entertainment information system may not be able to start, and must be returned to the factory for repair, which seriously affects the user’s use; the upgrade package is exposed to the user without encryption, and hackers can pass through Analyze the upgrade package to achieve the purpose of invading the car entertainment system, so as to control the entire car system; if the car downloads the upgrade package through the network and does not authenticate the server, it may download the modified upgrade package, seriously affecting the car. machine security