on-site protection method for an electric energy meter program
The invention relates to an on-site protection method for an electric energy meter program. The method comprises the following steps: 1, respectively embedding an algorithm for calculating License into upper computer software and the electric energy meter program; 2, calculating through an algorithm...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The invention relates to an on-site protection method for an electric energy meter program. The method comprises the following steps: 1, respectively embedding an algorithm for calculating License into upper computer software and the electric energy meter program; 2, calculating through an algorithm to obtain a CodeID; 3, enabling the upper computer software to calculate to obtain a fixed-length byte License through an algorithm according to the CodeID; 4, downloading the obtained License into a License structural body in the electric energy meter, and recompiling an electric energy meter program; 5, downloading the successfully compiled program into a table for running; And 6, after the electric energy meter runs, calling a verification module in the library function to judge the legalityof the electric energy meter, if the electric energy meter is legal, normally running, and if the electric energy meter is illegal, stopping running after valid time. The program running legality ofthe electric energy meter |
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