Upgrading method and device for vehicle-mounted remote monitoring system

Abstract

The invention discloses an upgrading method and device for a vehicle-mounted remote monitoring system, and relates to the field of vehicle-mounted software maintenance. The method comprises the following steps: S1, after receiving an OTA upgrading instruction, a T-BOX requests an issued upgrading data packet from a background server, and the step S2 is executed; s2, judging whether an upgrade data packet issued by the background server is received within the waiting duration, if so, storing the upgrade data packet, and turning to S3, otherwise, enabling the T-BOX to enter a dormant state, automatically awakening after the awakening duration, requesting to issue the upgrade data packet to the background server, and executing S2 again; s3, after all the upgrade packages are downloaded, the T-BOX enters a dormant state, and the step S4 is executed; and S4, when the vehicle is in an OFF state, the T-BOX starts an automatic upgrading program. In the T-BOX process, when the upgrade patch issued by the background server is not received for a long time, automatic dormancy is carried out, and the upgrade patch is periodically applied to the background server, so that the upgrade success rate is improved.

Description

technical field [0001] The invention relates to the field of vehicle-mounted software maintenance, in particular to an upgrade method and device for a vehicle-mounted remote monitoring system. Background technique [0002] Telematics BOX, referred to as vehicle T-BOX, the Internet of Vehicles system consists of four parts, the host, the vehicle T-BOX, the mobile APP and the background system. The host is mainly used for in-vehicle audio and video entertainment and vehicle information display; the vehicle-mounted T-BOX is mainly used to communicate with the background system / mobile APP to realize the display and control of vehicle information on the mobile APP. [0003] When the user sends a control command through the mobile phone APP, the TSP background will send a monitoring request command to the on-board T-BOX. After the vehicle obtains the control command, it will send a control message through the CAN bus to control the vehicle, and finally feedback the operation resul...

AI Technical Summary

Problems solved by technology

[0011] The disadvantage of this method is: after the T-BOX is awakened after receiving the SMS instruction of the OTA upgrade, it starts to detect the version and allows the device to sleep. During the period from the end of the detection to the version download, there may be a short period of no business delivery. At this time, if the device sleep permission condition has been met, the power management module will enter the sleep state because it has not found the service issued by the background server

After dormancy, because the communication between T-BOX and background server can only be awakened by SMS, the upgrade package sent by the background server cannot wake up T-BOX. Therefore, T-BOX cannot receive the upgrade package, that is, the upgrade process is interrupted, and T-BOX BOX will fail to upgrade due to the failure to write the configuration items required to upgrade the business

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