Remote firmware upgrading method and system for intelligent Internet of Things metering instrument

Abstract

The invention relates to the technical field of communication, and especially relates to a remote firmware upgrading method and system for an intelligent Internet of Things metering instrument. The method comprises the following steps of: S1, uploading a latest firmware upgrade package to a server, the server compares the latest firmware upgrade package with the last firmware upgrade package in the metering instrument; if the difference point is smaller than the set threshold value, the information of the difference point is packaged into a firmware upgrade package to be upgraded, and if the difference point is larger than or equal to the set threshold value, the latest firmware upgrade package is used as the firmware upgrade package to be upgraded, and an upgrade instruction is issued atthe server side; S2, receiving an upgrading instruction by the metering instrument, connecting a server according to the upgrading instruction, and downloading a corresponding firmware upgrading package to be upgraded; and S3, the metering instrument completes firmware upgrading according to the to-be-upgraded firmware upgrading package. The method has two modes of whole package upgrading and difference point upgrading, and can effectively cope with various upgrading conditions.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method and system for remote firmware upgrade of an intelligent Internet of Things measuring instrument. Background technique [0002] With the advancement of science and technology, IoT metering instruments are developing rapidly. In order to facilitate maintenance and timely change program problems, IoT metering instruments use remote firmware upgrade technology. Send the complete code package to the meter and store it in the external storage module, and then burn the complete code package into the microprocessor of the meter after the download is completed. [0003] Due to the above-mentioned firmware upgrade method of the IoT smart meter has certain limitations: due to the rapid development of the IoT smart meter, the number of function points is increasing, and the code volume is increasing, so the upgrade time is getting longer and longer; and due to the measureme...

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Problems solved by technology

[0003] Due to the above-mentioned firmware upgrade method of the IoT smart meter has certain limitations: due to the rapid development of the IoT smart meter, the number of function points is increasing, and the code volume is increasing, so the upgrade time is getting longer and longer; and due to the measurement Most of the instruments are powered by lithium batteries, and the power supply characteristics do not support long-term communication, and can only be uploaded in different periods, resulting in a long time span for the update program and low efficiency

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