Freezing and event recording data storage method for electric energy meter

Abstract

The invention discloses a freezing and event record data storage method for an energy meter. The method includes the steps of configuring associated objects for freezing and event records of an energy meter; generating mask serial numbers for indicating the associated objects of the freezing and event records, the mask serial numbers determining the length of bytes occupied by masks; storing the associated object and the mask serial number of each freezing and event record, and generating a corresponding mask; and when a freezing or event record occurs, an energy meter performing data storage of the mask and the associated object of the freezing or event record. The method of the invention enables the arbitrary configuration of the associated objects of the freezing record or event records of the energy meter by setting the static / dynamic associated objects, the static / dynamic mask serial numbers and the corresponding masks, also greatly reduces the data storage space by means of the mask serial numbers and the masks, quickly stores the freezing or event record data, and does not affect the data traceability function of the energy meter.

Description

technical field [0001] In particular, the invention relates to a freezing and event recording data storage method for electric energy meters. Background technique [0002] With the development of national economy and technology and the improvement of people's living standards, electric energy has become an indispensable secondary energy source in people's production and life, bringing endless convenience to people's production and life. [0003] As the only component for measuring electric energy in the power system, the energy meter is self-evident in its importance and reliability. When the energy meter is working, when there is a freezing event or a recording event, the meter will record the freezing data and event recording data, and the specific data to be recorded depends on which association objects the user configures for the freezing or event recording. Objects: Configure which objects are associated objects, and store the specific values ​​of these associated obje...

AI Technical Summary

Problems solved by technology

[0015] This scheme seems to use one bit to represent an associated object descriptor through encoding, and the space is compressed to 1 / 32 of the original (the original is a 4-byte associated object descriptor, 4 bytes is 32 bits, now it is 1 bit, so it is compressed to the original 1 / 32); but the problem is that the user may configure the associated object arbitrarily. For a system with thousands of objects, the encoding length of the bit code sequence of the associated object descriptor is thousands of bits , that is, hundreds of bytes, the increase in the amount of stored data is also unacceptable

An example is as follows, assuming that the number of system objects is 1024, in order to encode these 1024 objects, 1024 bits are needed, and 1024 bits are 128 bytes. If the user configures the 1024th object as an associated object, he has to When storing frozen data for the first time, the 128-byte bit code sequence is also stored; therefore, the defect of this solution is that any object in the system cannot be configured as an associated object of freezing or event recording, which has great limitations for users. It is only suitable for systems with a relatively small number of objects. For example, if the number of objects in the system is only 64 or less (64 is 8 bytes, which is still acceptable), this solution is feasible

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