Method for error detection and correction and trajectory tracking of power meter software

Abstract

The invention relates to a method for error detection and correction and trajectory tracking of power meter software. The method comprises the following steps of (1), adding a CS check byte to a data structure so as to perform a CS check, (2), adding a fore-and-aft tagged word byte of a fixed value to the data structure so as to perform a fore-and-aft tagged word check, (3), determining whether or not a data buffer zone is overflown, (4), determining whether or not data stack space is smaller than a preset warning value, (5), conducting a validity check on important inlet parameters of an operation function, and if execution requirements of the operation function are not satisfied, outputting information of inefficiency, (6), designing an output function of the operation trajectory of the power meter software, and outputting information of the operation trajectory of the power meter software and information of operation status to a computer so as to facilitate checking of a current operation condition of the software. According to the method, various mechanisms of error detection and correction are integrated, the problems which are found out are uniformly output through a trajectory function to the computer, and the problem locations are determined quickly and fed back to a developer for modification, so that the software problem of a power meter is minimized.

Description

technical field [0001] The invention belongs to the technical field of electric energy meters, and in particular relates to an error detection and correction and trajectory tracking method of electric energy meter software. Background technique [0002] With the official implementation of the State Grid Corporation of China's smart energy meter series standards, the functions of the energy meter have increased significantly, and the software code of the energy meter has reached as many as 100,000 lines. The software debugging and troubleshooting work is very difficult. Although there are product system tests conducted internally by the supplier and full-performance tests conducted by the State Grid Metrology Center, many problems are deeply hidden and have a low recurrence frequency, such as variable rewriting by exception, buffer or stack overflow, software exception reset, etc. , it is impossible to confirm all the hidden errors. In addition, the State Grid prohibits the u...

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Problems solved by technology

Although there are product system tests conducted internally by the supplier and full-performance tests conducted by the State Grid Metrology Center, many problems are deeply hidden and have a low recurrence frequency, such as variable rewriting by exception, buffer or stack overflow, software exception reset, etc. , it is impossible to confirm all the hidden errors. In addition, the State Grid prohibits the software upgrade of the electric energy meter running on the site, resulting in some errors that cannot be eliminated before leaving the factory, which affects the use of the site.

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