CN203396938U - Intelligent electric energy meter with remote calibration device - Google Patents
Intelligent electric energy meter with remote calibration device Download PDFInfo
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- CN203396938U CN203396938U CN201320273016.0U CN201320273016U CN203396938U CN 203396938 U CN203396938 U CN 203396938U CN 201320273016 U CN201320273016 U CN 201320273016U CN 203396938 U CN203396938 U CN 203396938U
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- 238000012795 verification Methods 0.000 claims description 38
- 238000012545 processing Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 11
- 230000008054 signal transmission Effects 0.000 claims description 8
- 230000011664 signaling Effects 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 7
- 238000012360 testing method Methods 0.000 description 8
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000005314 correlation function Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000001208 nuclear magnetic resonance pulse sequence Methods 0.000 description 1
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- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model discloses an intelligent electric energy meter with a remote calibration device. The intelligent electric energy meter with the remote calibration device comprises a standard calibration load automatic switching unit and a calibration timing signal pulse generation unit, the standard calibration load automatic switching unit comprises an automatic switching circuit and a standard calibration load circuit, and the standard calibration load automatic switching unit and the calibration timing signal pulse generation unit are electrically connected in parallel with each other and synchronously operate. The intelligent electric energy meter with the remote calibration device combines with related functions of an original intelligent electric energy meter, and can be linked with a computer conveniently, automatic tracking management of the accuracy of the metering device is achieved, fair dealing of electric energy is further achieved, and the problem that users doubt about the accuracy of the intelligent electric energy meter can be eliminated.
Description
Technical field
The utility model relates to a kind of intelligent electric meter of indicating power consumption, especially a kind of intelligent electric meter with remote test device.
Background technology
At present, intelligent electric meter, as a kind of Novel measuring device, has been widely used in modern electric energy metrical.But affected by various factors, yet can there are some defects in intelligent electric meter itself, cause certain deviation of metering result, need regular censorship.In daily management, if when user has doubt to electric energy meter metering, after need filing an application to power department, deliver to the place verification of appointment after need being pulled down by power department professional, or needing professional to adopt instrumentation to detect to scene, checking process is more complicated.But general user cannot make preliminary judgement to correct electric energy meter accuracy, and always subjectivity thinks that intelligent electric meter always runs a good foot than old-fashioned mechanical electricity meter, and electric energy meter is accurately delivered to the calibrating of metering verification department again after pulling down, and verification result is normal, user also needs to pay certain metage and uses.Like this, can cause user's short supply interruption and certain economic loss, waste again user and testing person's time, even also may cause certain electric power dispute, affect the good service level of power department simultaneously.And current intelligent electric meter cannot be realized remote control automatic check function, also cannot carry out Intellectualized monitoring management to the normal operation of intelligent electric meter.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art part, and provide a kind of remote auto calibration equipment with communication function, and in conjunction with original intelligent electric meter correlation function, can be easily and computer link, realization is carried out automatic tracing management to the accuracy of measuring apparatus, further accomplish the utmost fair dealing of electric energy, eliminate the intelligent electric meter with remote test device of user to the doubt of intelligent electric meter accuracy.
The long-range calibration equipment of a kind of intelligent electric meter, include signal transmission unit, signaling control unit, intelligent electric meter metering and signal acquisition process unit, signal control data processing terminal, described signal control data processing terminal is connected with signal acquisition process unit with intelligent electric meter metering by signal transmission unit, intelligent electric meter metering is also exported to signaling control unit with signal acquisition process unit, it is characterized in that, signal pulse generating unit when the long-range calibration equipment of described intelligent electric meter also includes standard verification load automatic switch unit and master gage, described standard verification load automatic switch unit includes automatic switch-over circuit, and verification standard termination circuit, described verification standard termination automatic switch unit during with master gage signal pulse generating unit be electric in parallel and synchronization action, described verification standard termination circuit and normal power supply user load circuit are electrical interlocks, described automatic switch-over circuit and intelligent electric meter trip signal output terminal are to be connected in series, verification standard termination circuit is electric in parallel with intelligent electric meter output terminal, during master gage, the output terminal of signal pulse generating unit and intelligent electric meter internal communication signal output terminal are signal series relationship.
The long-range calibration equipment of intelligent electric meter of the present utility model, signal pulse generating unit when setting up standard verification load automatic switch unit and master gage on former intelligent electric meter, when needs verification, user load is automatically switched to standard termination, utilize the communication function advantage of former intelligent electric meter to realize and computer link, the pulse number of receiving in time limit by computational rules, calculating with theory the pulse number that standard verification load should produce makes comparisons, tentatively draw the fast or slow of intelligent electric meter, reach the general order of accuarcy of automatic decision electric energy meter, as more in deviation, can further carry out again field test.Thereby can reduce in a large number because user's subjective reason thinks that ammeter may be fast and to ammeter censorship accurately, also can realize the accuracy of measuring of intelligent electric meter is carried out to the automatic tracing management in a distant place.
Described automatic switch-over circuit mainly consists of electric-controlled switch.
Described verification standard termination main circuit will consist of resistor.
During described master gage, signal pulse circuit for generating, mainly consists of 555 integrated sequence pulse-generating circuits.
In sum, the utility model following advantage compared to existing technology:
Intelligent electric meter of the present utility model is long-range and in conjunction with original intelligent electric meter correlation function, can be easily and computer link, realization is carried out automatic tracing management to the accuracy of measuring apparatus, further accomplishes the utmost fair dealing of electric energy, eliminates the doubt of user to intelligent electric meter accuracy.
Accompanying drawing explanation
Fig. 1 is the intelligent electric meter schematic diagram with remote test device of an embodiment of the utility model.
The intelligent electric meter circuit theory diagrams with remote test device that Fig. 2 is this practical embodiment.
The intelligent electric meter principle of work block diagram with remote test device that Fig. 3 is this practical embodiment.
The standard time sequence pulse generating circuit schematic diagram of the intelligent electric meter with remote test device that Fig. 4 is this practical embodiment.
Embodiment
Below in conjunction with embodiment, the utility model is described in more detail.
The long-range calibration equipment of a kind of intelligent electric meter as Figure 1-4, include signal transmission unit, signaling control unit, intelligent electric meter metering and signal acquisition process unit, signal control data processing terminal, described signal control data processing terminal is connected with signal acquisition process unit with intelligent electric meter metering by signal transmission unit, intelligent electric meter metering is also exported to signaling control unit with signal acquisition process unit, it is characterized in that, signal pulse generating unit when the long-range calibration equipment of described intelligent electric meter also includes standard verification load automatic switch unit and master gage, described standard verification load automatic switch unit includes automatic switch-over circuit, and verification standard termination circuit, described verification standard termination automatic switch unit during with master gage signal pulse generating unit be electric in parallel and synchronization action, described verification standard termination circuit and normal power supply user load circuit are electrical interlocks, described automatic switch-over circuit and intelligent electric meter trip signal output terminal are to be connected in series, verification standard termination circuit is electric in parallel with intelligent electric meter output terminal, during master gage, the output terminal of signal pulse generating unit and intelligent electric meter internal communication signal output terminal are signal series relationship.
In Fig. 1 and Fig. 2, mainly by electric-controlled switch 4b， contact 5a, 5c, standard termination 5d forms.When having need to propose verification to certain user's intelligent electric meter 3 time, by verification personnel, on checking signal control terminal 1 computing machine, sent a trip signal, by signal, transfer unit 2 signal is sent to the single machine unit in intelligent electric meter 3, send a tripping operation exit relay action of operating a switch in instruction enabling signal control module 4a, after tripping operation exit relay action in signaling control unit 4a, start electric-controlled switch coil 4b, after electric-controlled switch 4b action, electric-controlled switch 5a normally closed contact in standard termination automatic switching control equipment 5 disconnects, allow the user load 5b loop of normal power supply temporarily disconnect.Simultaneously, electric-controlled switch 5c normally opened contact is closed, allow verification standard termination 5d automatically access, the processing of signal collection in worksite is carried out in metering in intelligent electric meter 3 and the accurate load of signal processing unit automatic benchmarking, signal processing results is sent back to checking signal processing terminal 1 by signal transmission unit 2 and calculate.After verification standard time sequence times 6 b signal ended, by checking signal, control processing terminal 1 again and send a switching signal to intelligent electric meter 3, allow electric-controlled switch 4b move, automatic cutout standard termination 5d power supply, the pulse of automatic cutout simultaneously self-clocking signal 6b, recovers normal users load 5b power supply automatically.
(2) the automatic generation module of verification time sequential pulse newly increasing: in Fig. 1 and Fig. 2, be mainly comprised of electric-controlled switch contact 6a, sprocket pulse signal generating circuit 6b, 6b is mainly comprised of 555 integrated circuit timing pulse producers.In electric-controlled switch coil 4b action, another is to normally opened contact 6a also action simultaneously, start sprocket pulse and produce circuit 6b, the output terminal of 6b is by the communication interface in intelligent switch 3b, sending it back checking signal processing terminal 1 with the standard metering impulsive synchronization collecting compares, isolate the umber of pulse that standard termination produces, then the umber of pulse umber of pulse receiving and theory being calculated is (as 60W is selected in verification standard termination, it is 10 minutes that the timing of verification pulse sequence is adjusted, Standard clectrical quantity is the pulse number that 0.01 degree electricity produces) compare analysis.As the umber of pulse receiving in the time at standard verification time sequential pulse 6b is greater than the umber of pulse that theory calculates, illustrate that this intelligent electric meter 3 is likely fast, as the umber of pulse receiving in the time at standard verification time sequential pulse 6b is less than the umber of pulse that theory calculates, illustrate that this intelligent electric meter 3 is likely partially slow, to reach the object of automatically preliminary verification electric energy meter.
It is same as the prior art that the present embodiment is not stated part.
Claims (4)
1. an intelligent electric meter with long-range calibration equipment, include signal transmission unit, signaling control unit, intelligent electric meter metering and signal acquisition process unit, signal control data processing terminal, described signal control data processing terminal is connected with signal acquisition process unit with intelligent electric meter metering by signal transmission unit, intelligent electric meter metering is also exported to signaling control unit with signal acquisition process unit, it is characterized in that, signal pulse generating unit when the long-range calibration equipment of described intelligent electric meter also includes standard verification load automatic switch unit and master gage, described standard verification load automatic switch unit includes automatic switch-over circuit and verification standard termination circuit, described verification standard termination automatic switch unit during with master gage signal pulse generating unit be electric in parallel and synchronization action, described verification standard termination circuit and normal power supply user load circuit are electrical interlocks, described automatic switch-over circuit and intelligent electric meter trip signal output terminal are to be connected in series, verification standard termination circuit is electric in parallel with intelligent electric meter output terminal, during master gage, the output terminal of signal pulse generating unit and intelligent electric meter internal communication signal output terminal are signal series relationship.
2. the intelligent electric meter with long-range calibration equipment according to claim 1, is characterized in that: described automatic switch-over circuit mainly consists of electric-controlled switch.
3. the intelligent electric meter with long-range calibration equipment according to claim 2, is characterized in that: described verification standard termination main circuit will consist of resistor.
4. the intelligent electric meter with long-range calibration equipment according to claim 1, is characterized in that: signal pulse circuit for generating during described master gage, mainly consists of 555 integrated sequence pulse-generating circuits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320273016.0U CN203396938U (en) | 2013-05-20 | 2013-05-20 | Intelligent electric energy meter with remote calibration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320273016.0U CN203396938U (en) | 2013-05-20 | 2013-05-20 | Intelligent electric energy meter with remote calibration device |
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| Publication Number | Publication Date |
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| CN203396938U true CN203396938U (en) | 2014-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320273016.0U Expired - Fee Related CN203396938U (en) | 2013-05-20 | 2013-05-20 | Intelligent electric energy meter with remote calibration device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105068040A (en) * | 2015-09-11 | 2015-11-18 | 珠海格力电器股份有限公司 | Electric energy metering device and household electrical appliance using same |
| CN107957570A (en) * | 2017-11-15 | 2018-04-24 | 国网辽宁省电力有限公司朝阳供电公司 | A kind of intelligent electric energy meter check system based on PLC distributed I/Os |
| CN112147567A (en) * | 2020-09-28 | 2020-12-29 | 宁夏隆基宁光仪表股份有限公司 | Intelligent ammeter with self-checking function and ammeter checking method |
-
2013
- 2013-05-20 CN CN201320273016.0U patent/CN203396938U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105068040A (en) * | 2015-09-11 | 2015-11-18 | 珠海格力电器股份有限公司 | Electric energy metering device and household electrical appliance using same |
| CN105068040B (en) * | 2015-09-11 | 2018-11-13 | 珠海格力电器股份有限公司 | Electric energy metering device and apply its household electrical appliance |
| CN107957570A (en) * | 2017-11-15 | 2018-04-24 | 国网辽宁省电力有限公司朝阳供电公司 | A kind of intelligent electric energy meter check system based on PLC distributed I/Os |
| CN112147567A (en) * | 2020-09-28 | 2020-12-29 | 宁夏隆基宁光仪表股份有限公司 | Intelligent ammeter with self-checking function and ammeter checking method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140115 Termination date: 20200520 |