Intelligent meter upgrading method and device, equipment and medium

Abstract

The invention discloses an intelligent meter upgrading method and device, equipment and a medium. The method comprises the steps of obtaining an upgrading file sent by an intelligent meter managementsystem; periodically sending the upgrading file to a target intelligent meter by taking a data packet as a sending unit based on a broadcasting mode; after each period is finished, judging whether thetotal data packet missing rate of the target intelligent meter is smaller than a preset missing rate threshold value or not, and screening out the intelligent meter which does not completely obtain the upgrading file to serve as a screened meter; and if so, sending the upgrading file to the screened meter by taking a data packet as a sending unit based on a unicast mode, so that the target intelligent meter can be upgraded based on the upgrading file. According to the application, by judging the total data packet missing rate of the target intelligent meter, the sending mode of the upgradingfile is switched from the broadcasting mode to the unicast mode, and then the upgrading file is sent to the screened meter based on the unicast mode, so that the upgrading efficiency of the intelligent meter is improved.

Description

technical field [0001] The invention relates to the field of smart grids, in particular to a smart meter upgrade method, device, equipment and medium. Background technique [0002] With the continuous development of the smart grid, the smart meter communication network (Advanced Metering Infrastructure, AMI) system is becoming more and more perfect. The entire AMI system includes the meter information management system, the concentrator, the smart meter and the communication module connecting the concentrator and the smart meter. . However, after the smart meter is installed, if the upgrade program is required, the implementer needs to go to the site to perform the local upgrade, which will waste a lot of manpower and material resources. In order to solve the above problems, a remote upgrade method is adopted. The meter information management system sends the meter upgrade file to the concentrator through remote communication, and then the concentrator transmits it to the s...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the concentrator sends the upgrade file to the smart meter through unicast, that is, only one smart meter is upgraded at the same time, and the next frame of data is transmitted after the smart meter sends a response signal. If the response signal is not received within the long unicast timeout period, it will be resent, but if all smart meters need to be upgraded, the unicast method will have the problem of long time consumption and low efficiency

In the prior art, the upgrade file is also sent to the smart meters through broadcasting. Compared with the unicast method, the broadcasting method sends the upgrade file to multiple smart meters at the same time, and the smart meters do not respond to the received data. After sending data, the meter waits for the longest broadcast timeout before sending the next frame of data. However, as the upgrade progresses, the number of remaining meters that have not received the upgrade file gradually decreases. At this time, the broadcast method will reduce the upgrade efficiency.

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