Method for realizing IAP remote upgrade through vehicle-mounted system based on mobile network

Abstract

The invention provides a method for realizing IAP remote upgrade through a vehicle-mounted system based on a mobile network. A vehicle-mounted platform downloads an upgrade file to the local from a far-end server through the mobile network, and then the vehicle-mounted platform transmits the upgrade file to a to-be-upgraded embedded device through an interface to realize the remote upgrade of the embedded device; by use of the upgrade method, the vehicle-mounted platform is used as a transmission relay of the upgrade file so as to realize an IAP remote upgrade function from the far-end server to the local embedded device; meanwhile, an upgrade function code is embedded into a user function code in the embedded device internal upgrade realization, the received upgrade file is temporarily stored at one region of the flash without covering a user program in operating, the upgrade file is copied to a user program region after verifying that the upgrade is successful; therefore, the normal operation of the user program can be guaranteed even if the upgrade is failed, and the risk that the upgrade is failed caused by accident in the upgrade process is lowered.

Description

technical field [0001] The invention relates to a method for a vehicle-mounted system to realize IAP remote upgrade based on a mobile network, and belongs to the technical field of vehicle-mounted system upgrades. Background technique [0002] In the existing technology, with the rapid development of electronic technology, communication technology and computer technology, embedded systems have been widely used in various fields, and the requirements of various industries for system functions, performance and scale of embedded devices are increasing day by day , developers must be able to remotely maintain and upgrade the system in a timely manner according to the needs of customers, so as to extend the service life of the system and improve the performance of the system. [0003] In today's in-vehicle systems, in order to ensure the control of maintenance costs and the best software update experience for end users, the in-vehicle electronics industry has added the software u...

AI Technical Summary

Problems solved by technology

[0004] However, traditional system upgrades only support local upgrades, and professional technical support personnel are required to go to the equipment site for upgrade and maintenance work, which greatly increases the maintenance cost of the equipment. 201210059474.4 "Method for Updating Smart Water Meter Application Program Online", Chinese Patent Application 201210428285.X "User Program Online Upgrade System and Upgrade Method", etc.

The Chinese patent applications related to the remote upgrade method do not provide specific protection measures for the failure of the upgrade during the upgrade process. The failure of the upgrade may cause the user program to not run normally. and remote online programming system" only describes how to realize the upgrade control of the target terminal through the mobile Internet; Chinese patent application 201410320164.2 "a remote upgrade method and system for ATmega single-chip computer program network" only discusses the entire upgrade process and Strict communication protocol; combined with the rapid development of today's Internet industry and the increasingly mature application prospects of Internet of Things technology, this Chinese patent application provides an embedded IAP remote upgrade method based on mobile networks, which has a strong design Pertinence and practicability greatly improve the security and reliability of system upgrades

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