A dual-core electric energy meter and its display method

A display method and a technology for an electric energy meter, applied in the field of electric energy meters, can solve the problems that the IR46 metering core program cannot be upgraded, and the management module cannot be installed to meet the requirements of the verification regulations, etc., so as to achieve the effect of reducing bandwidth occupation.

Active Publication Date: 2021-03-30
STATE GRID CHONGQING ELECTRIC POWER CO ELECTRIC POWER RES INST +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solve the problem that the requirements of the verification regulations cannot be met without installing the management module
At the same time, it solves the problem that when the management core program upgrade needs to change the display, the metering core program needs to be upgraded at the same time, which does not meet the IR46 metering core program upgrade requirement.

Method used

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  • A dual-core electric energy meter and its display method
  • A dual-core electric energy meter and its display method
  • A dual-core electric energy meter and its display method

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0039] The present invention will be further described below in conjunction with drawings and embodiments.

[0040] Such as figure 1 Said, a dual-core electric energy meter of the present invention, the electric energy meter includes a metering module and a management module, and the metering module is connected to the management module through an SPI communication interface;

[0041] The metering module includes a metering core, a display and display buttons, and the management module includes a management core;

[0042] The inside of the metering core is provided with a video memory for buffering all video memory frames output to the display;

[0043] The metering core is connected to the display through the video memory;

[0044] The video memory is composed of a plurality of metering video memory frames and a plurality of management video memory frames;

[0045] The metering video memory frame is used to cache each frame bitmap of the internal data of the metering core;...

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Abstract

The invention discloses a double-core electric energy meter, and belongs to the technical field of electric energy meters. The electric energy meter comprises a metering module and a management module, wherein the management module is connected to the metering module through an SPI communication interface; the metering module comprises a metering core, a display and a display key; the management module comprises a management core; a display memory is arranged inside the metering core, and is used for caching all the display frames output to the display; the metering core is connected to the display through the display memory; the display memory is composed of a plurality of metering display frames and a plurality of management display frames; and the display key is connected to a display pin of the metering core and is used for switching the current display frame of the display memory. According to the electric energy meter and the display method, a server-client communication model ofthe double-core electric energy meter is not changed, flexible display of the management module data in the metering module is realized, and the problem that the requirements of verification regulations cannot be met without installing the management module can be solved.

Description

technical field [0001] The invention relates to the technical field of electric energy meters, in particular to a double-core electric energy meter and a display method. Background technique [0002] JJG596 is the procedure for the National Bureau of Quality Supervision to verify electric energy meters according to national standards. Including the following 7 verification items: visual inspection, AC voltage test, creep test, starting test, basic error, instrument constant test, clock day time error. Existing schemes cannot meet the requirements of verification regulations without a management module. details as follows: [0003] The "appearance inspection" item in the regulations needs to check the power display, and there is no display after removing the management module, which does not meet the requirements of the regulations; [0004] The "instrument constant test" in the regulations also needs to read the display data, which is used to record the electric energy va...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): G01R11/00G01R11/16G01R35/04
CPCG01R11/00G01R11/16G01R35/04
Inventor刘型志周全郑可田娟侯兴哲谢永明吴彬宫林籍勇亮陈文礼杨芾藜彭鹏刘畅黄可
OwnerSTATE GRID CHONGQING ELECTRIC POWER CO ELECTRIC POWER RES INST