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Upgrading method of electric energy meter program

A program upgrade and energy meter technology, applied in program control devices, program loading/starting, etc., can solve the problems of program developer loss, easy to be cracked, and verified, so as to protect rights and interests, save waiting time, improve safety effect

Inactive Publication Date: 2013-12-18
HEXING ELECTRICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to make the energy meter continuously meet the needs of customers and power company management without increasing user costs, it is the best choice to upgrade the program of the energy meter. However, the existing program upgrade process is too simple, that is, the source of the upgrade is directly The code is burned into the energy meter chip, and its disadvantages are: 1. The source code of the upgrade is easily copied, resulting in losses to the program developer; 2. The verification of the detailed information of the upgraded meter cannot be completed, resulting in the illegal upgrade program being downloaded to the target 3. The upgrade program does not have multiple secrets and is easy to be cracked
4. It is necessary to mail the programmer, which is especially inconvenient for export product upgrades

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] The upgrading method of the present invention is applicable to the situation that the application program and the Bootloader code are burnt in the MCU chip of the electric energy meter itself, and the Bootloader code will not be released, that is to say, other parties cannot obtain this part of the Bootloader code, and the company will only release the Bootloader code. The code is burned into the MCU chip of the energy meter. Among them, the application program is a daily running task, and the Bootloader code is only run during the upgrade, and will not change in future upgrades.

[0016] The concrete steps of this embodiment are as follows:

[0017] a. On the computer, edit the HEX file (upgrade package) that needs to be upgraded to generate an executable Bootloader upgrader, which contains the upgrade code. The application program in the MCU chip) and the Bootloader code. In this example, the method for generating the Bootloader upgrader is as follows: the Bootloade...

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PUM

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Abstract

The invention aims to an upgrading method of electric energy meter program, aiming to reduce possibility of upgraded programs being copied and prevent illegal program from being downloaded to a target meter. The technical scheme includes a, editing and generating an HEX document to be upgraded into executable upgrading device, deleting Bootloader code during editing to make upgrading codes into incomplete upgrading codes and encrypting the incomplete upgrading codes; b, running the upgrading device on computers to enable the upgrading device to log in the target meter and to verify effectiveness of the target meter, if pass, then go to Step C, if not, then stop upgrading; c, utilizing the upgrading device to download the incomplete upgrading codes into the target meter; d, utilizing the target meter to run the received incomplete upgrading codes to check whether Bootloader codes exist in the meter or not and verify the Bootloader codes. If the result is yes, then the upgradation is succeeded, if the result is no, then the upgradation is failed.

Description

technical field [0001] The invention relates to a program upgrading method of an electric energy meter, which is mainly suitable for users or administrators to upgrade the program of the electric energy meter with Bootloader function. Background technique [0002] With the improvement of people's living standards, the use of electric energy is increasing year by year, and the electric energy meter is constantly being transformed and its functions are constantly being improved. In order to make the energy meter continuously meet the needs of customers and power company management without increasing user costs, it is the best choice to upgrade the program of the energy meter. However, the existing program upgrade process is too simple, that is, the source of the upgrade is directly The code is burned into the energy meter chip, and its disadvantages are: 1. The source code of the upgrade is easily copied, resulting in losses to the program developer; 2. The verification of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/445
Inventor 周良璋王军
Owner HEXING ELECTRICAL
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