CN101178432A - Electrical energy meter fault automatic measurement technology - Google Patents
Electrical energy meter fault automatic measurement technology Download PDFInfo
- Publication number
- CN101178432A CN101178432A CNA2007100768571A CN200710076857A CN101178432A CN 101178432 A CN101178432 A CN 101178432A CN A2007100768571 A CNA2007100768571 A CN A2007100768571A CN 200710076857 A CN200710076857 A CN 200710076857A CN 101178432 A CN101178432 A CN 101178432A
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- China
- Prior art keywords
- energy meter
- electrical energy
- output
- automatic measurement
- measurement technology
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Measurement Of Current Or Voltage (AREA)
Abstract
The invention relates to an automatic testing technology of an electric energy meter failure. The output of a current sensor of the electric energy meter is amplified by a line amplifier to shaping output a direct current voltage and compares with the measurement output of a measuring circuit. The measuring circuit is judged whether having a failure according to the comparison result.
Description
Affiliated technical field
The invention belongs to the electric energy metrical technical field, relate to the electrical energy meter fault detection technique.
Background technology
The electric energy metrical technical field, electrical energy meter fault is actually rare, in case take place generally all can just can be found after two, three months, causes losing of power consumption therebetween; Only saw at present the report that Source of Gateway Meter has fault to detect automatically, the report of common electric energy meter fault self-checking was not also seen with relevant document.
Summary of the invention
The present invention is by detecting the output of electrical energy meter electricity flow sensor, and the metering output of comparison metering circuit reaches the purpose that detects the metering circuit fault;
Technical scheme provided by the present invention is: with the output of electrical energy meter electricity flow sensor through amplifier amplify, shaping, export a DC voltage; Metering circuit just often, can be therewith the be directly proportional metrical pulse of a respective frequencies of output of DC voltage; So as long as the frequency relation of comparison this DC voltage and metrical pulse, just can judge whether fault of metering circuit.
Beneficial effect of the present invention: common electric energy meter consumption is very big, though the ammeter that breaks down is rare, owing in a single day take place and can not in time find, causes the metering blank of a period of time, produces imbalance between supply and demand.The present invention makes indication in the time of will taking into account bug list, cooperates automatic meter reading system especially, and the very first time is found the bug list meter.
Embodiment
Select low-power consumption, linear amplifier, the output of amplified current sensor uses synchronous detection to become DC voltage; Metering circuit just often, can be therewith the be directly proportional metrical pulse of a respective frequencies of output of DC voltage; Use single-chip microcomputer to detect the pulsed frequency of this DC voltage and metering circuit output, when finding that both are not proportional, get final product decision table meter fault.
Claims (2)
1. an electrical energy meter fault automatic measurement technology is characterized in that: detect the metering output of electrical energy meter electricity flow sensor and metering circuit;
2. electrical energy meter fault automatic measurement technology according to claim 1, its further feature is: the output of current sensor and the metering output of metering circuit are compared;
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100768571A CN101178432A (en) | 2007-09-03 | 2007-09-03 | Electrical energy meter fault automatic measurement technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100768571A CN101178432A (en) | 2007-09-03 | 2007-09-03 | Electrical energy meter fault automatic measurement technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101178432A true CN101178432A (en) | 2008-05-14 |
Family
ID=39404760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100768571A Pending CN101178432A (en) | 2007-09-03 | 2007-09-03 | Electrical energy meter fault automatic measurement technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101178432A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104076316A (en) * | 2013-03-27 | 2014-10-01 | 中航物联技术（北京）有限公司 | Ammeter fault patrol method and system |
| CN113208637A (en) * | 2021-05-10 | 2021-08-06 | 重庆大学 | Working state identification system for exercise rehabilitation physiological parameter sensing detection device |
-
2007
- 2007-09-03 CN CNA2007100768571A patent/CN101178432A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104076316A (en) * | 2013-03-27 | 2014-10-01 | 中航物联技术（北京）有限公司 | Ammeter fault patrol method and system |
| CN113208637A (en) * | 2021-05-10 | 2021-08-06 | 重庆大学 | Working state identification system for exercise rehabilitation physiological parameter sensing detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| DD01 | Delivery of document by public notice |
Addressee: Liu Aimin Document name: the First Notification of an Office Action |
|
| DD01 | Delivery of document by public notice |
Addressee: Liu Aimin Document name: Notification that Application Deemed to be Withdrawn |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20080514 |