CN105182022A - Electric quantity depositing device and method during meter installation, power connection and exchange - Google Patents
Electric quantity depositing device and method during meter installation, power connection and exchange Download PDFInfo
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- CN105182022A CN105182022A CN201510703174.9A CN201510703174A CN105182022A CN 105182022 A CN105182022 A CN 105182022A CN 201510703174 A CN201510703174 A CN 201510703174A CN 105182022 A CN105182022 A CN 105182022A
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Abstract
The invention relates to electric quantity depositing equipment, in particular to an electric quantity depositing device and method during meter installation, power connection and exchange. According to the technical scheme, the electric quantity depositing device during meter installation, power connection and exchange comprises an electric energy measurement unit, a single chip microcomputer and a frequency division counter; the electric energy measurement unit is respectively connected with the single chip and the frequency division counter through the electric energy measurement unit; the electric energy measurement unit comprises a voltage current sampler, a digital multiplier and a D/F converter; the voltage current sampler is used for converting a collected current voltage signal into a digital signal through an AD/converter; the A/D converter is used for conveying the digital signal to the D/F converter through the digital multiplier; and the D/F converter is connected with the single chip microcomputer and the frequency division counter. The electric quantity depositing device and method during meter installation, power connection and exchange have the beneficial effects that the electricity consumption of customers during a meter exchange period can be recorded; electricity information of the customers is integrally reflected; and the electric quantity losses of power supply enterprises are reduced.
Description
Technical field
The present invention relates to a kind of electricity depositing equipment, particularly one dress table connects charged renewal electricity LD device and method.
Background technology
In order to provide better service to client, dress table connects the necessary hot line job of charged renewal table meter operation, when measuring apparatus is normally run, electric current enters electric energy meter through metering junction box, then consumer is got back to again, during this, electric energy meter just have recorded the power consumption of client, in order to the safety of subscriber equipment and staff, at this moment need electric current short circuit in flakes, voltage is opened in flakes, so the power consumption of client is not recorded between operational period, causes power supply enterprise's line loss per unit and raise, affect the metering of the electricity charge and the loss of equipment.
Summary of the invention
Object of the present invention is exactly in view of the foregoing defects the prior art has, provides a kind of dress table to connect charged renewal electricity LD device and method.
Its technical scheme is: the one dress table that the present invention mentions connects charged renewal electricity LD device and comprises electric energy measurement unit, single-chip microcomputer, frequency counter, electric energy measurement unit is measured by power test and connects single-chip microcomputer and frequency counter respectively, described electric energy measurement unit comprises electric current and voltage sampling thief, digital multiplier, D/F converter, electric current and voltage sampling thief changes the current and voltage signals of collection into digital signal by A/D converter, digital signal is sent to D/F converter by digital multiplier by A/D converter, D/F converter connects single-chip microcomputer, frequency counter,
Described electric current and voltage sampling thief: the two ends of electric energy meter connect input end and output terminal, the two ends of electric energy meter are provided with input/output terminal, the input end of electric energy meter connects the output terminal of sampling A/D chip HLW8012, the input end of sampling A/D chip HLW8012 carries out voltage sample by resistance R21, R22, R23, R24, R26, described current signal is sampled to load current by resistance R25, parallel resistance R25 between the input end of described electric energy meter and the defeated place end of sampling A/D chip HLW8012.
Two ends shunt capacitance C1 and C2 of described resistance R25.
The two ends shunt capacitance C3 of described resistance R26.
Described frequency counter adopts AD7754 as computation chip.
A kind of table that fills that the present invention mentions connects the method for work of charged renewal electricity LD device, comprises the following steps:
Dress table connects electricity, by the two ends of electric current and voltage sampling thief access electric energy meter, electric current and voltage sampling thief works, three-phase voltage, electric current are sampled, the voltage and current signal of collection is changed into digital signal again by A/D converter, digital signal is sent to D/F converter by digital multiplier, D/F converter connects single-chip microcomputer, frequency counter, it is the pulse signal of a certain proportion of relation with power that voltage and current is transformed into a kind of by electric energy measurement unit, and the digital quantity that digital multiplier exports is converted to the frequency pulse signal representing power signal by D/F converter.
The invention has the beneficial effects as follows: the power consumption of client during can recording replacing table meter, the power information of complete reaction client, decreases the electric quantity loss of power supply enterprise.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present invention;
Accompanying drawing 2 is structural representations of electric current and voltage sampling thief.
Embodiment
1-2 by reference to the accompanying drawings, the invention will be further described:
The one dress table that the present invention mentions connects charged renewal electricity LD device, comprise electric energy measurement unit, single-chip microcomputer, frequency counter, electric energy measurement unit is measured by power test and connects single-chip microcomputer and frequency counter respectively, described electric energy measurement unit comprises electric current and voltage sampling thief, digital multiplier, D/F converter, electric current and voltage sampling thief changes the current and voltage signals of collection into digital signal by A/D converter, digital signal is sent to D/F converter by digital multiplier by A/D converter, and D/F converter connects single-chip microcomputer, frequency counter;
Described electric current and voltage sampling thief: the two ends of electric energy meter 1 connect input end and output terminal, the two ends of electric energy meter are provided with input/output terminal, the input end of electric energy meter connects the output terminal of sampling A/D chip HLW8012, the input end of sampling A/D chip HLW8012 carries out voltage sample by resistance R21, R22, R23, R24, R26, described current signal is sampled to load current by resistance R25, parallel resistance R25 between the input end of described electric energy meter and the defeated place end of sampling A/D chip HLW8012.
Two ends shunt capacitance C1 and C2 of described resistance R25.
The two ends shunt capacitance C3 of described resistance R26.
Described frequency counter adopts AD7754 as computation chip.
A kind of table that fills that the present invention mentions connects the method for work of charged renewal electricity LD device, comprises the following steps:
Dress table connects electricity, by the two ends of electric current and voltage sampling thief access electric energy meter, electric current and voltage sampling thief works, three-phase voltage, electric current are sampled, the voltage and current signal of collection is changed into digital signal again by A/D converter, digital signal is sent to D/F converter by digital multiplier, D/F converter connects single-chip microcomputer, frequency counter, it is the pulse signal of a certain proportion of relation with power that voltage and current is transformed into a kind of by electric energy measurement unit, and the digital quantity that digital multiplier exports is converted to the frequency pulse signal representing power signal by D/F converter.
The above, be only part preferred embodiment of the present invention, any those of ordinary skill in the art all may utilize the technical scheme correct of above-mentioned elaboration or are revised as equivalent technical scheme.Therefore, any simple modification of carrying out according to technical scheme of the present invention or substitute equivalents, belong to the scope of protection of present invention to the greatest extent.
Claims (5)
1. a dress table connects charged renewal electricity LD device, it is characterized in that: comprise electric energy measurement unit, single-chip microcomputer, frequency counter, electric energy measurement unit is measured by power test and connects single-chip microcomputer and frequency counter respectively, described electric energy measurement unit comprises electric current and voltage sampling thief, digital multiplier, D/F converter, electric current and voltage sampling thief changes the current and voltage signals of collection into digital signal by A/D converter, digital signal is sent to D/F converter by digital multiplier by A/D converter, and D/F converter connects single-chip microcomputer, frequency counter;
Described electric current and voltage sampling thief: the two ends of electric energy meter connect input end and output terminal, the two ends of electric energy meter are provided with input/output terminal, the input end of electric energy meter connects the output terminal of sampling A/D chip HLW8012, the input end of sampling A/D chip HLW8012 carries out voltage sample by resistance R21, R22, R23, R24, R26, described current signal is sampled to load current by resistance R25, parallel resistance R25 between the input end of described electric energy meter and the defeated place end of sampling A/D chip HLW8012.
2. a kind of dress table according to claim 1 connects charged renewal electricity LD device, it is characterized in that: two ends shunt capacitance C1 and C2 of described resistance R25.
3. a kind of dress table according to claim 1 connects charged renewal electricity LD device, it is characterized in that: the two ends shunt capacitance C3 of described resistance R26.
4. a kind of dress table according to claim 1 connects charged renewal electricity LD device, it is characterized in that: described frequency counter adopts AD7754 as computation chip.
5. a kind of according to any one of claim 1-4 fills the method for work that table connects charged renewal electricity LD device, it is characterized in that: comprise the following steps:
Dress table connects electricity, by the two ends of electric current and voltage sampling thief access electric energy meter, electric current and voltage sampling thief works, three-phase voltage, electric current are sampled, the voltage and current signal of collection is changed into digital signal again by A/D converter, digital signal is sent to D/F converter by digital multiplier, D/F converter connects single-chip microcomputer, frequency counter, it is the pulse signal of a certain proportion of relation with power that voltage and current is transformed into a kind of by electric energy measurement unit, and the digital quantity that digital multiplier exports is converted to the frequency pulse signal representing power signal by D/F converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510703174.9A CN105182022A (en) | 2015-10-27 | 2015-10-27 | Electric quantity depositing device and method during meter installation, power connection and exchange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510703174.9A CN105182022A (en) | 2015-10-27 | 2015-10-27 | Electric quantity depositing device and method during meter installation, power connection and exchange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105182022A true CN105182022A (en) | 2015-12-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510703174.9A Pending CN105182022A (en) | 2015-10-27 | 2015-10-27 | Electric quantity depositing device and method during meter installation, power connection and exchange |
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| CN (1) | CN105182022A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105974195A (en) * | 2016-06-29 | 2016-09-28 | 杭州华春科技有限公司 | Bypass electric quantity metering device and metering method thereof |
| CN106441265A (en) * | 2016-10-31 | 2017-02-22 | 北京控制工程研究所 | D/F conversion method based on double scale outputting |
| CN107765149A (en) * | 2017-10-13 | 2018-03-06 | 上海钛昕电气科技有限公司 | The insulation detection device of integrated multifunction |
| CN109470899A (en) * | 2018-10-08 | 2019-03-15 | 国网辽宁省电力有限公司抚顺供电公司 | Hand-held electric power detection terminal |
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| EP1070967B1 (en) * | 1992-02-21 | 2005-01-26 | Elster Electricity, LLC | Method and apparatus for electronic meter testing |
| CN1354368A (en) * | 2000-11-18 | 2002-06-19 | 广东科龙电器股份有限公司 | Electric energy metering equipment based on electric load |
| CN1419131A (en) * | 2002-12-18 | 2003-05-21 | 王荣安 | Intelligent fraudulent use prevention electric energy measuring method and device thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105974195A (en) * | 2016-06-29 | 2016-09-28 | 杭州华春科技有限公司 | Bypass electric quantity metering device and metering method thereof |
| CN105974195B (en) * | 2016-06-29 | 2019-02-26 | 杭州华春科技有限公司 | Bypass electric quantity metering device and its metering method |
| CN106441265A (en) * | 2016-10-31 | 2017-02-22 | 北京控制工程研究所 | D/F conversion method based on double scale outputting |
| CN106441265B (en) * | 2016-10-31 | 2019-04-09 | 北京控制工程研究所 | D/F conversion method based on two-scale output |
| CN107765149A (en) * | 2017-10-13 | 2018-03-06 | 上海钛昕电气科技有限公司 | The insulation detection device of integrated multifunction |
| CN109470899A (en) * | 2018-10-08 | 2019-03-15 | 国网辽宁省电力有限公司抚顺供电公司 | Hand-held electric power detection terminal |
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