Radar firmware remote upgrading method and upgrading system

Abstract

The invention discloses a radar firmware remote upgrading method, and the method comprises the steps of receiving a firmware upgrading package sent by an upper computer, putting the firmware upgrading package into a temporary folder, wherein the firmware upgrading package comprises new radar firmware and an original digital signature; acquiring the newest digital signature of the new radar firmware, copying the new radar firmware from the temporary folder to the inactive working catalog under the condition that the newest digital signature is consistent with the original digital signature, and switching the guide mark to the inactive working catalog at the same time; and restarting the radar, verifying the integrity of the new radar firmware in the inactive working directory, and switching the guide mark to the active working directory where the old radar firmware is located under the condition that the new radar firmware is incomplete. According to the technical scheme provided by the invention, the radar cannot be crashed due to upgrading under any condition.

Description

technical field [0001] The invention relates to the technical field of data communication, in particular to a method and system for remotely upgrading radar firmware. Background technique [0002] In recent years, vehicle-road coordination technology has developed vigorously, and the demand for radar-based road test perception systems has become increasingly strong. Usually roadside perception uses millimeter-wave radar for project implementation. During the implementation process, frequent iterative optimization of the radar firmware is required according to the actual detection environment and customization requirements. And because the detection environment varies widely, custom development of radar firmware is usually required, so that the normal operation of the same project requires multiple versions of radar firmware. This makes the OTA (Over-The-Air Technology) automatic batch firmware upgrade method commonly used by embedded devices inapplicable. However, some spe...

AI Technical Summary

Problems solved by technology

Most of the time, it is necessary to perform remote upgrades through the network, but due to various uncertain factors such as unstable communication quality and low speed, the upgrade fails

The radar is not allowed to be in a non-startable state at any time. We need to ensure that any errors that occur during the upgrade process can be rolled back to the safe firmware operation, and the traditional firmware upgrade method for communication equipment, once the firmware has problems during the upgrade process , is likely to cause equipment downtime

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