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Data storing method for smart electric meter

A technology for data storage and smart meters, applied in the direction of electrical digital data processing, input/output process of data processing, instruments, etc., can solve the problem of not being able to support smart meters to freeze and store electric power values ​​in minutes, not guaranteeing memory life, and waste Storage space and other issues, to reduce the number of storage page erase and write operations, save data storage space, and prolong life

Inactive Publication Date: 2017-07-11
四川创能海博科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] It can be seen that the data storage method in the prior art not only wastes storage space, but also cannot guarantee the life of the memory, and cannot well support the technical solution of freezing and storing the electric power value of the smart meter every minute.

Method used

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  • Data storing method for smart electric meter
  • Data storing method for smart electric meter
  • Data storing method for smart electric meter

Examples

Experimental program
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Effect test

Embodiment

[0030] The improved smart meter needs to store the current electric power value in the memory every minute, so as to facilitate the data statistics and analysis of the user's electricity consumption. It is required that the memory can store the latest 48 hours of data, once every minute, the outdated data is automatically overwritten, it has the feature of power-off energy saving, and the service life of the memory is guaranteed to be 20 years.

[0031] The memory we selected is EEPROM, the model is M24C512-RMN6TP, the power supply voltage of this chip is 3.3V, and it communicates with MCU (microprocessor) through IIC bus. The reliability declared by the manufacturer is 1,000,000 times (one million times) writable times, and the data can be stored for 40 years without loss. The storage capacity is 512Kbit (512*1024bit), and 8 bits are a byte, which is converted into a word. The number of sections is 65536 Byte (512*1024 / 8=65536). The capacity of 65536 bytes is divided into 51...

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Abstract

The invention provides a data storing method for a smart electric meter. The data storing method comprises the following steps: partitioning data storing time into a plurality of pieces of unit time, and partitioning a storage into a plurality of data blocks which are equal in the unit time, wherein each data block stores data acquired within one piece of unit time; clearing the data blocks before each data block starts to store data, and writing initial storing time; storing the acquired data in the data blocks according to acquisition time. By adopting the method, ordered data storage is ensured, the data storing space is saved, and the service life of the storage is prolonged.

Description

technical field [0001] The invention relates to the technical field of data storage, in particular to a data storage method of an intelligent electric meter. Background technique [0002] As the front-end metering and storage device of the electricity information collection system, the smart meter plays an important role in the measurement and storage of power data. However, the current smart meter can only store the electric power value in units of 1 hour, thus ignoring the load. The change in the span of up to one hour reduces the processing capacity of power companies to deal with load changes, and cannot meet the high requirements of business in the power system for the processing time limit. [0003] The improved smart meter improves the original hardware micro-processing and storage capabilities, and adopts the technical solution of freezing and storing electric power every minute. Compared with the frozen data of 1 hour / time, it is obvious that the frozen data of 1 mi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/06
CPCG06F3/0608G06F3/0614G06F3/0616G06F3/0629G06F3/064G06F3/0679
Inventor 海波
Owner 四川创能海博科技有限公司