CN105738692A - Electric energy meter and debugging method thereof - Google Patents
Electric energy meter and debugging method thereof Download PDFInfo
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- CN105738692A CN105738692A CN201410755777.9A CN201410755777A CN105738692A CN 105738692 A CN105738692 A CN 105738692A CN 201410755777 A CN201410755777 A CN 201410755777A CN 105738692 A CN105738692 A CN 105738692A
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Abstract
The invention provides an electric energy meter and a debugging method thereof. The electric energy meter comprises a program controller module, a display module, a key module, a power supply module, a metering module, a communication module, a storage module, and a meter calibration register, wherein the display module, the key module, a power supply module, the metering module, the communication module, the storage module, and the meter calibration register are connected to the program controller module. The metering module is connected with a sampling module; the sampling module has a sampling circuit; and the precision of the sampling resistor in the sampling circuit is not larger than 0.001. With the debugging method, rapid debugging on electric energy meters in batches can be realized and thus one-by-one debugging on electric energy meters in batches can be avoided, so that the production efficiency of electric energy meters can be improved.
Description
Technical field
The present invention relates to a kind of electric energy meter, particularly relate to a kind of debugging electric energy meter and adjustment method thereof.
Background technology
Along with developing rapidly of China's power industry, electric energy has become indispensable main energy sources in industrial and agricultural production and people's daily life.In the process of the production of electric energy, conveying and use, in order to correctly measure electric energy, it is necessary to use special measuring instrument, as electric energy meter measures.Existing electric energy meter is required for the precision carrying out debugging to ensure when the later stage measures before dispatching from the factory, and the debugging of electric energy meter is a job consuming time, the debugging time of an average electric energy meter is approximately in 30 minutes, extends the production time of electric energy meter so that the production efficiency of electric energy meter is substantially reduced.Especially for milliampere level electric energy meter, the transformer of described electric energy meter is placed on electric energy meter so that the process of debugging is relatively complicated and poor efficiency.
In view of this, it is necessary to provide the electric energy meter of a kind of improvement and adjustment method thereof to solve the problems referred to above.
Summary of the invention
It is an object of the invention to provide the electric energy meter of a kind of fast debugging and adjustment method thereof.
For achieving the above object, the invention provides a kind of electric energy meter, including cyclelog module, it is connected to the display module of cyclelog module, key-press module, power module, metering module and sampling module, described sampling module has sample circuit, and the sampling resistor precision in described sample circuit is not more than 0.001.
As a further improvement on the present invention, the metering module in described electric energy meter is circumscribed with transformer, and the interface mode of described transformer is closed type.
The present invention also provides for the adjustment method of a kind of electric energy meter, has some calibration depositors in some described electric energy meters, and the adjustment method of described electric energy meter comprises the steps:
1) transformer that the sampling resistor of selected described electric energy meter to be measured is corresponding compares difference；
2) standard electric energy meter is provided, it is energized after selecting the ratio difference of the sampling resistor in described electric energy meter to be measured and transformer, consult metering module service manual, select the calibration parameter of described electric energy meter to be measured, the error of calibration parameter Yu standard electric energy meter by contrasting and calibrate selection, until the accuracy of described electric energy meter to be measured and standard electric energy meter is 1 grade standard, after completing the calibration to described electric energy meter to be measured, make a copy of the some calibration register values obtaining described electric energy meter to be measured；
3) write the debugging routine of described electric energy meter to be measured, and described some calibration register values are written in the debugging routine of described electric energy meter to be measured；
4) debugging routine is burnt in the cyclelog module in some described electric energy meters to be measured, it is achieved to high-volume electric energy meter debugging.
The invention has the beneficial effects as follows: electric energy meter of the present invention is by improving the sampling resistor precision of electric energy meter to be measured, select corresponding calibration parameter, and contrast and calibrate the calibration parameter error of electric energy meter to be measured and standard electric energy meter, according to error, the some calibration parameter values in electric energy meter to be measured are modified, and it is stored in described calibration depositor, after completing the calibration to electric energy meter to be measured, make a copy of the some calibration register values obtaining electric energy meter to be measured, by programming in some described calibration register values write to the debugging routine of electric energy meter to be measured, debugging routine is burnt in some electric energy meters to be measured the most at last, realize the accurately and quickly debugging to some described electric energy meters to be measured, to improve the production efficiency of electric energy meter.
Accompanying drawing explanation
Fig. 1 is the internal module figure of electric energy meter of the present invention.
Fig. 2 is the adjustment method flow chart of electric energy meter of the present invention.
Detailed description of the invention
Describe the present invention below with reference to each embodiment shown in the drawings, refer to shown in Fig. 1-2, for a better embodiment of the present invention.
The present invention relates to a kind of electric energy meter 100, including cyclelog module, it is connected to the display module of cyclelog module one end, key-press module, power module, metering module, communication module and memory module, the described metering module other end is connected to sampling module, described sampling module has sample circuit, and the sampling resistor precision in described sample circuit is not more than 0.001.In the present embodiment, the precision of described sampling resistor is 0.001.Being also equipped with some calibration depositors in described electric energy meter 100, conventional calibration depositor includes voltage gain correcting register, current gain correcting register, virtual value offset correcting register.
The metering module of described electric energy meter is circumscribed with transformer, and described transformer includes current transformer and voltage transformer.The interface mode of described transformer is closed type.So arrange, described closed type transformer ensure that the complete laminating of contact end face, it is also possible that contact end face is not by the pollution of extraneous dust, avoid result in the precision of transformer own to be forbidden, and then affect the adjustment accuracy of electric energy meter, by sampling resistor precision will be improved and changes the interface mode of transformer and make the precision affecting some electric energy meters to be measured have higher concordance.
In embodiments of the present invention, the model of the computation chip of described metering module is ATT7022E.The output voltage values of described voltage transformer is 400mV, and the relation between ratio difference and the number of described sampling resistor of described current transformer is:
When transformer is 100A/20mA than difference, described sampling resistor is 10 Ω, and number is 2；When transformer is 200A/40mA than difference, described sampling resistor is 5.1 Ω, and number is 2；When transformer is 300A/60mA than difference, described sampling resistor is 3 Ω, and number is 2；When transformer is 400A/80mA than difference, described sampling resistor is 2 ~ 3 Ω, and number is 2；When transformer is 500A/100mA than difference, described sampling resistor is 2 Ω, and number is 2；
The present invention also provides for a kind of adjustment method to aforementioned electric energy meter, has some calibration depositors inside described electric energy meter.It comprises the steps:
1) transformer that the sampling resistor of selected described electric energy meter to be measured is corresponding compares difference.
2) providing a standard electric energy meter, the sampling resistor precision of described standard electric energy meter is higher than described electric energy meter to be measured.Being energized after selecting the ratio difference of the sampling resistor in electric energy meter to be measured and transformer, consult metering module service manual, select the calibration parameter of electric energy meter to be measured, concrete described calibration parameter detects for those skilled in the art, is not specifically described here.Contrast and calibrate the calibration parameter of selection and the error of standard electric energy meter, until the accuracy of electric energy meter to be measured and standard electric energy meter is 1 grade, to complete the calibration to described electric energy meter to be measured.Now, the computation chip of described electric energy meter to be measured, by being modified and be stored in some described depositors to described calibration parameter value, finally makes a copy of the some described register value obtaining described electric energy meter to be measured.
3) write the debugging routine of electric energy meter to be measured, some calibration register values of described electric energy meter to be measured are written in debugging routine.
4) debugging routine is burnt in the cyclelog module in some described electric energy meters to be measured, it is achieved to high-volume electric energy meter debugging, it is to avoid one by one described electric energy meter to be measured is debugged.
In sum, electric energy meter of the present invention is by improving the sampling resistor precision of electric energy meter to be measured, select corresponding calibration parameter, and contrast and calibrate the calibration parameter error of electric energy meter to be measured and standard electric energy meter, according to error, the some calibration parameter values in electric energy meter to be measured are modified, and it is stored in described calibration depositor, after completing the calibration to electric energy meter to be measured, make a copy of the some calibration register values obtaining electric energy meter to be measured, by programming in some described calibration register values write to the debugging routine of electric energy meter to be measured, debugging routine is burnt in some electric energy meters to be measured the most at last, realize the accurately and quickly debugging to some described electric energy meters to be measured, to improve the production efficiency of electric energy meter.
It is to be understood that, although this specification is been described by according to embodiment, but not each embodiment only comprises an independent technical scheme, this narrating mode of description is only for clarity sake, description should be made as a whole by those skilled in the art, technical scheme in each embodiment through appropriately combined, can also form other embodiments that it will be appreciated by those skilled in the art that.
The a series of detailed description of those listed above is only for illustrating of the feasibility embodiment of the present invention; they also are not used to limit the scope of the invention, and all should be included within protection scope of the present invention without departing from the skill of the present invention equivalent implementations made of spirit or change.
Claims (3)
1. an electric energy meter, including cyclelog module, it is connected to the display module of cyclelog module, key-press module, power module, metering module, communication module, memory module and calibration depositor, described metering module is connected to sampling module, it is characterized in that: described sampling module has sample circuit, the sampling resistor precision in described sample circuit is not more than 0.001.
2. electric energy meter according to claim 1, it is characterised in that: described electric energy meter metering module is circumscribed with transformer, and the interface mode of described transformer is closed type.
3. an adjustment method for electric energy meter, has some electric energy meters as described in claim 2, has some calibration depositors in some described electric energy meters, and the adjustment method of described electric energy meter comprises the steps:
1) transformer that the sampling resistor of selected described electric energy meter to be measured is corresponding compares difference；
2) standard electric energy meter is provided, it is energized after selecting the ratio difference of the sampling resistor in described electric energy meter to be measured and transformer, consult metering module service manual, select the calibration parameter of described electric energy meter to be measured, the error of calibration parameter Yu standard electric energy meter by contrasting and calibrate selection, until the accuracy of described electric energy meter to be measured and standard electric energy meter is 1 grade standard, after completing the calibration to described electric energy meter to be measured, make a copy of the some calibration register values obtaining described electric energy meter to be measured；
3) write the debugging routine of described electric energy meter to be measured, and described some calibration register values are written in the debugging routine of described electric energy meter to be measured；
4) debugging routine is burnt in the cyclelog module in some described electric energy meters to be measured, it is achieved to high-volume electric energy meter debugging.
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| CN201410755777.9A CN105738692A (en) | 2014-12-11 | 2014-12-11 | Electric energy meter and debugging method thereof |
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| CN201410755777.9A CN105738692A (en) | 2014-12-11 | 2014-12-11 | Electric energy meter and debugging method thereof |
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| CN105738692A true CN105738692A (en) | 2016-07-06 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107526054A (en) * | 2017-08-16 | 2017-12-29 | 广东电网有限责任公司揭阳供电局 | Method and device for electric energy meter field detection |
| CN107703356A (en) * | 2017-09-30 | 2018-02-16 | 国网河南省电力公司濮阳供电公司 | A kind of intelligent electric energy meter with voice broadcast function |
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| US5539304A (en) * | 1991-09-19 | 1996-07-23 | Ampy Automation - Digilog Limited | Calibration of power meters |
| CN201724980U (en) * | 2009-04-03 | 2011-01-26 | 深圳市锐能微科技有限公司 | Electric energy metering chip with single-wire two-way serial communication interface |
| CN202196119U (en) * | 2011-09-15 | 2012-04-18 | 无锡华润矽科微电子有限公司 | Single-phase multifunctional electric energy metering circuit |
| CN103091552A (en) * | 2011-10-31 | 2013-05-08 | 无锡华润矽科微电子有限公司 | Pre-calibrated electric energy metering circuit and calibration method |
| CN103424732A (en) * | 2013-08-05 | 2013-12-04 | 广西电网公司电力科学研究院 | Detection device and detection method for direct current electric energy meter |
| CN103513218A (en) * | 2012-06-27 | 2014-01-15 | 苏州工业园区新宏博通讯科技有限公司 | Calibration method for multi-path alternating-current ammeter |
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2014
- 2014-12-11 CN CN201410755777.9A patent/CN105738692A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5539304A (en) * | 1991-09-19 | 1996-07-23 | Ampy Automation - Digilog Limited | Calibration of power meters |
| CN201724980U (en) * | 2009-04-03 | 2011-01-26 | 深圳市锐能微科技有限公司 | Electric energy metering chip with single-wire two-way serial communication interface |
| CN202196119U (en) * | 2011-09-15 | 2012-04-18 | 无锡华润矽科微电子有限公司 | Single-phase multifunctional electric energy metering circuit |
| CN103091552A (en) * | 2011-10-31 | 2013-05-08 | 无锡华润矽科微电子有限公司 | Pre-calibrated electric energy metering circuit and calibration method |
| CN103513218A (en) * | 2012-06-27 | 2014-01-15 | 苏州工业园区新宏博通讯科技有限公司 | Calibration method for multi-path alternating-current ammeter |
| CN103424732A (en) * | 2013-08-05 | 2013-12-04 | 广西电网公司电力科学研究院 | Detection device and detection method for direct current electric energy meter |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107526054A (en) * | 2017-08-16 | 2017-12-29 | 广东电网有限责任公司揭阳供电局 | Method and device for electric energy meter field detection |
| CN107703356A (en) * | 2017-09-30 | 2018-02-16 | 国网河南省电力公司濮阳供电公司 | A kind of intelligent electric energy meter with voice broadcast function |
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