MCU software upgrading method and system of vehicle-mounted multimedia device, and storage device
A technology for in-vehicle multimedia and software upgrade, applied in the field of in-vehicle multimedia, can solve the problems of increasing user burden, trouble, trouble of MCU upgrade, etc., and achieve the effect of improving convenience and safety
Inactive Publication Date: 2018-01-12
SHENZHEN APICAL TECH CO LTD
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[0002] Car multimedia systems generally have two controllers, one MCU for logic control, and one ARM to run the operating system. The upgrade of the operating system is relatively convenient. For example, the Arnold system has a complete upgrade method, but the upgrade of the MCU is relatively troublesome. The MCU software needs to go to the 4S store or download it to the SD card for the user to upgrade. Going to the 4S store is troublesome and increases the burden on the user. However, upgrading by the user is easy to cause upgrade errors due to the large number of software versions.
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[0035] In view of the shortcomings of the MCU software upgrade method of the vehicle-mounted multimedia system in the prior art, such as complicated methods and insufficient convenience, the purpose of the present invention is to provide a method, system and storage device for upgrading the MCU software of the vehicle-mounted multimedia device, which can push the latest version through the network server The original MCU software can be sent to the vehicle multimedia equipment to realize the remote upgrade of the MCU software through the network and improve the convenience and security of the MCU software upgrade.
[0036] In order to make the object, technical solution and effect of the present invention more clear and definite, the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit ...
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The invention discloses an MCU software upgrading method and an MCU software upgrading system of a vehicle-mounted multimedia device, and a storage device. The MCU software upgrading method comprisesthe steps of: acquiring a version number of current MCU software of the vehicle-mounted multimedia device, and detecting a version number of latest MCU software provided by a network server when the vehicle-mounted multimedia device is accessed to a network; judging whether to upgrade the MCU software according to the version number of the current MCU software and the version number of the latestMCU software, and if so, outputting upgrade prompting information; receiving and saving latest MCU software data transmitted by a network server when detecting an upgrading instruction input by a user; and calling an upgrading interface after the receiving and saving of the latest MCU software data are completed, verifying the latest MCU software data according to a preset verification rule and then writing the latest MCU software data into a storage of an MCU by means of the upgrading interface. The MCU software upgrading method and the MCU software upgrading system can push the latest version of MCU software to the vehicle-mounted multimedia device by means of the network server, realize remote upgrading of the MCU software by means of the network, and improve the convenience and security of MCU software upgrading.
Description
technical field [0001] The invention relates to the technical field of vehicle-mounted multimedia, in particular to an MCU software upgrading method, system and storage device of vehicle-mounted multimedia equipment. Background technique [0002] Car multimedia systems generally have two controllers, one MCU for logic control, and one ARM to run the operating system. The upgrade of the operating system is relatively convenient. For example, the Arnold system has a complete upgrade method, but the upgrade of the MCU is relatively troublesome. The MCU software needs to go to a 4S store or download it to an SD card to be upgraded by the user. Going to the 4S store is troublesome and increases the burden on the user. However, due to the large number of software versions, the MCU software is easily upgraded by the user. [0003] Thereby prior art still needs to improve and improve. Contents of the invention [0004] In view of the above-mentioned deficiencies in the prior art,...
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IPC IPC(8): G05B19/042
Inventor 李丹
Owner SHENZHEN APICAL TECH CO LTD
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