To enhance the convenience and efficiency of automotive software upgrades, a method utilizing Over-the-Air (OTA) technology is proposed. In this approach, the Bootloader system establishes a wireless connection to Alibaba Cloud, transmitting firmware packages earmarked for upgrade to the cloud. The cloud then facilitates the download to the gateway board, which, through its Lora module, transmits the firmware to multiple sub-devices, enabling a bulk remote upgrade process. Taking the BCM automotive controller core board as an example, the relay transmission feature of Lora is utilized to extend the transmission range, while the built-in AES encryption algorithm ensures the security of the transmitted firmware packages. Experimental results demonstrate that this remote data update technology significantly accelerates the rate of automotive software updates, reducing the workload and staff requirements in the process. Moreover, this remote data update technology is equally applicable to address status detection issues in body control modules.
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Niu et al. (2024) studied this question.
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