CN204086389U - A kind of three-phase electricity monitoring device - Google Patents
A kind of three-phase electricity monitoring device Download PDFInfo
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- CN204086389U CN204086389U CN201420487850.4U CN201420487850U CN204086389U CN 204086389 U CN204086389 U CN 204086389U CN 201420487850 U CN201420487850 U CN 201420487850U CN 204086389 U CN204086389 U CN 204086389U
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- 230000005611 electricity Effects 0.000 title claims abstract description 56
- 238000012806 monitoring device Methods 0.000 title claims abstract description 33
- 238000012545 processing Methods 0.000 claims abstract description 35
- 230000005540 biological transmission Effects 0.000 claims abstract description 19
- 238000006243 chemical reaction Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 6
- 238000004377 microelectronic Methods 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 2
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- 230000009286 beneficial effect Effects 0.000 description 1
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- 239000012467 final product Substances 0.000 description 1
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- 238000012423 maintenance Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
Abstract
A kind of three-phase electricity monitoring device, comprises signal gathering unit, controlled processing unit, wireless transmission unit and power supply unit; Described signal gathering unit gathers electric current and the voltage analog signal value of three-phase electricity; The electric current of collection and voltage analog signal value are converted into digital signal value by described controlled processing unit, performance number and the active energy value of three-phase is calculated according to the electric current after conversion and voltage digital signal value, when the unbalance factor that described performance number is less than default performance number or three phase power value exceedes default unbalance factor value, by generation warning indication information; Described wireless transmission unit by gather electric current and voltage digital signal value, the three phase power value calculated and active energy value, and produce warning indication information be transferred to power supply management control center, for back-stage management and control; Described power supply unit provides working power for described controlled processing unit.Whether this device effectively can monitor user's electric energy meter has electricity consumption, reduces power stealing situation and occurs.
Description
Technical field
The utility model belongs to power supply detection field, is specifically related to a kind of three-phase electricity monitoring device based on power status maintenance.
Background technology
Some are large-scale with electrician factory now, and in order to save the electricity charge, when main equipment electricity consumption works, there is the situation of short time power stealing, this situation can show out on electric energy meter, but really exists, and is again not timing; And the situation of reality is, the staff of power supply administration can not go to monitor its electricity consumption situation constantly, and its result causes causing infringement to the economic interests of power supply administration.Therefore, need badly at present a kind of can the equipment of the electric energy of monitor user ' electricity consumption constantly, for monitoring user power utilization electric energy, occur to prevent power stealing situation.
Summary of the invention
The user existed for prior art sneaks current the technical matters that power supply administration cannot monitor, the utility model provides a kind of three-phase electricity monitoring device, this device can the electric energy of monitor user ' electricity consumption constantly, and can by real-time for electricity consumption energy information active upload, providing indication information when meeting pre-conditioned to powered operation personnel, user can be greatly reduced thus and to sneak current the generation of situation.
To achieve these goals, the utility model adopts following technical scheme: a kind of three-phase electricity monitoring device, comprises signal gathering unit, controlled processing unit, wireless transmission unit and power supply unit; Wherein, described signal gathering unit gathers electric current and the voltage analog signal value of three-phase electricity; The electric current of collection and voltage analog signal value are converted into digital signal value by described controlled processing unit, performance number and the active energy value of three-phase is calculated according to the electric current after conversion and voltage digital signal value, when the unbalance factor that described performance number is less than default performance number or three phase power value exceedes default unbalance factor value, by generation warning indication information; Described wireless transmission unit by gather electric current and voltage digital signal value, the three phase power value calculated and active energy value, and produce warning indication information be transferred to power supply management control center, for back-stage management and control; Described power supply unit provides working power for described controlled processing unit.
Compared to prior art, in the three-phase electricity monitoring device that the utility model provides, described signal gathering unit can gather three-phase current and the three-phase voltage analog signal values of user power utilization constantly, described controlled processing unit by gather electric current and voltage signal values after analog to digital conversion, calculate performance number and the active energy value of three-phase, a warning indication information is produced when the unbalance factor that described performance number is less than predetermined power value or three phase power value exceedes default unbalance factor value, and by wireless transmission unit, the data messages such as active energy value and warning indication information are transferred to power supply management control center, achieve the real-time active upload of electricity consumption energy information, be convenient to back-stage management and control, facilitate the staff of power supply administration to carry out scene according to actual alarm indication information to check, user can be greatly reduced like this to sneak current the generation of situation.
Further, described signal gathering unit comprises three-phase current sensor and three-phase voltage sensor, and described three-phase current sensor gathers the current value of three-phase electricity, and described three-phase voltage sensor gathers the magnitude of voltage of three-phase electricity.
Further, the three-phase voltage value of described three-phase voltage sensor collection is the magnitude of voltage of three-phase voltage after dividing potential drop and process.
Further, the model that described controlled processing unit selects ST Microelectronics to produce is the chip of STM32F103X.
Further, the power acquisition three-phase supply that described power supply unit provides is powered.
Further, described three-phase electricity monitoring device also comprises the clock unit for setting-up time interval, and the energy value of measuring in this setting-up time interval is transferred to power supply management control center by controlled processing unit described in timing controlled.
Further, described three-phase electricity monitoring device also comprises the storage unit for storaging state information, event information and data message.
Further, described three-phase electricity monitoring device also comprises the alarm unit that the warning indication information produced according to described controlled processing unit carries out warning instruction.
Adopt the three-phase electricity monitoring device that the utility model provides, there is following beneficial effect: this device does not need direct access user electric energy meter, but effectively can monitor user's electric energy meter and whether have electricity consumption, and analyze according to daily electricity consumption situation and power the situation that whether there is power stealing, thus can greatly reduce user and to sneak current the generation of situation.
Accompanying drawing explanation
Fig. 1 is the three-phase electricity monitoring device theory structure schematic diagram that the utility model embodiment provides.
In figure, 1, signal gathering unit; 11, three-phase current sensor; 12, three-phase voltage sensor; 2, controlled processing unit; 3, wireless transmission unit; 4, power supply unit; 5, clock unit; 6, storage unit; 7, alarm unit.
Embodiment
The technological means realized to make the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the utility model further.
Please refer to shown in Fig. 1, a kind of three-phase electricity monitoring device, comprise signal gathering unit 1, controlled processing unit 2, wireless transmission unit 3 and power supply unit 4; Wherein, described signal gathering unit 1 gathers electric current and the voltage analog signal value of three-phase electricity; The electric current of collection and voltage analog signal value are converted into digital signal value by described controlled processing unit 2, performance number and the active energy value of three-phase is calculated according to the electric current after conversion and voltage digital signal value, when the unbalance factor that described performance number is less than default performance number or three phase power value exceedes default unbalance factor value, by generation warning indication information; Described wireless transmission unit 3 by gather electric current and voltage digital signal value, the three phase power value calculated and active energy value, and produce warning indication information be transferred to power supply management control center, for back-stage management and control; Described power supply unit 4 provides working power for described controlled processing unit.
Compared to prior art, in the three-phase electricity monitoring device that the utility model provides, described signal gathering unit can gather three-phase current and the three-phase voltage analog signal values of user power utilization constantly, described controlled processing unit by gather electric current and voltage signal values after analog to digital conversion, calculate performance number and the active energy value of three-phase, when the unbalance factor that described performance number is less than predetermined power value or three phase power value exceedes default unbalance factor value, (situation that may there is stealing is described) produces a warning indication information, and by wireless transmission unit, the data messages such as active energy value and warning indication information are transferred to power supply management control center, achieve the real-time active upload of electricity consumption energy information, be convenient to back-stage management and control, facilitate the staff of power supply administration to carry out scene according to actual alarm indication information to check, user can be greatly reduced like this to sneak current the generation of situation.
As specific embodiment, please refer to shown in Fig. 1, described signal gathering unit 1 comprises three-phase current sensor 11 and three-phase voltage sensor 12, and described three-phase current sensor 11 gathers the current value of three-phase electricity, and described three-phase voltage sensor 12 gathers the magnitude of voltage of three-phase electricity.Particularly, the three-phase electricity flow valuve that described three-phase current sensor 11 will gather, after being converted into the analog signal values that described controlled processing unit 2 can identify, then is transferred to described controlled processing unit 2 by amplifying circuit and true rms circuit; Process and the three-phase electricity flow valuve of described three-phase voltage sensor 12 acquisition and processing three-phase voltage value are similar.Wherein, described amplifying circuit and true rms circuit can adopt this area custom circuit to realize, and physical circuit is known for those skilled in the art, does not repeat them here.
As specific embodiment, the three-phase voltage value that described three-phase voltage sensor 12 gathers is the magnitude of voltage of three-phase voltage after dividing potential drop and process.Particularly, the three-phase electricity monitoring device that the utility model provides is mainly for detection of whether there is power stealing situation, less demanding in measuring accuracy, therefore the direct dividing potential drop of three-phase voltage can be adopted, allow obtain after dividing potential drop there is certain proportionate relationship between voltage and described three-phase voltage, voltage after dividing potential drop is inputted described controlled processing unit 2 after amplifying circuit and true rms circuit process, has not only saved cost thus, can also meet the demands.
As specific embodiment, the model that described controlled processing unit 2 selects ST Microelectronics to produce is the chip of STM32F103X.Particularly, described controlled processing unit 2 is control and the process core of whole three-phase electricity monitoring device, be mainly used to carry out analog to digital conversion to the three-phase current inputted and voltage analog signal, calculate performance number and the active energy value of three-phase simultaneously, and realize self-inspection and the output of warning indication information of performance number and active energy value, thus the operation irregularity of described controlled processing unit 2 is frequent, therefore requires that the arithmetic speed of controlled processing unit 2 wants fast; Meanwhile, the application scenario electromagnetic interference (EMI) based on this monitoring device is large, so select the chip that antijamming capability is stronger as far as possible, on the basis that this analyzes, advises that the model selecting ST Microelectronics to produce is the chip of STM32F103X.
As specific embodiment, described wireless transmission unit 3, for the background system that will the data of transmission needed to be transferred to power supply management control center, realizes exchanges data, also can check this locality simultaneously; Mode of its transmission can select in the public mobile networks such as CDMA, GPRS, 3G any one.Wherein, the Mobile Transmission technology of described cdma wireless network has lot of advantages: good confidentiality, antijamming capability are strong, the flexible configuration of anti-multipath fading, power system capacity, networking cost are low; The topmost advantage of described GPRS is always online and charges by flow, and need not dial and get final product accessing Internet at any time, keep in touch with network at any time, resource utilization is high; 3G technology replaces GPRS and CDMA at present gradually, and the effective speed that can realize at present reaches 384 kbit/s, substantially can realize real-time Transmission.Certainly, described wireless transmission unit 3 is not limited to aforesaid kind, can also select forth generation mobile communication technology 4G the fastest at present.
As specific embodiment, the power acquisition three-phase supply that described power supply unit 4 provides is powered, as long as the arbitrary phase power supply thus in the middle of three-phase is normal, this device will work on, when can solve single phase power supply like this, just cut-off electricity phase time, the situation that device cannot normally work.
As specific embodiment, described three-phase electricity monitoring device also comprises the clock unit 5 for setting-up time interval, and the energy value of measuring in this setting-up time interval is transferred to power supply management control center by controlled processing unit described in timing controlled.Particularly, described three-phase electricity monitoring device also comprises clock unit 5, described clock unit 5 is for setting-up time interval, with statistics in this setting-up time interval, the energy value that described controlled processing unit 2 measures, and when this setting-up time interval is terminated, the energy value that described controlled processing unit 2 measures is transferred to power supply management control center, the difference of described power supply management control center contrast user electric energy, the electric energy of table metering and the electric energy of this monitoring device metering, can determine whether user exists the situation of power stealing thus further.As a kind of embodiment, the time interval that described clock unit 5 sets is one month, and calibrate with Beijing time, after the time of one month terminates, the energy value of metering in this month is transferred to power supply management control center by described controlled processing unit 2, namely realizes monthly timing transmission energy value.
As specific embodiment, described three-phase electricity monitoring device also comprises the storage unit 6 for storaging state information, event information and data message.Particularly, described storage unit 6 is for storing some status informations, event information and numerical information etc., so that user's inquiry.
As specific embodiment, described three-phase electricity monitoring device also comprises the warning indication information produced according to described controlled processing unit and carries out the alarm unit 7 indicated of reporting to the police.Particularly, described controlled processing unit 2 by gather electric current and voltage signal values after analog to digital conversion, calculate performance number and the active energy value of three-phase, when the unbalance factor that described performance number is less than predetermined power value or three phase power value exceedes default unbalance factor value, generation one to be reported to the police indication information, described alarm unit 7 carries out warning instruction, with call user's attention according to this warning indication information; Simultaneously, the data messages such as active energy value and warning indication information also can be transferred to power supply management control center by wireless transmission unit 3 by described warning indication information, realize in the real-time active upload of electricity consumption energy information, be convenient to back-stage management and control, facilitate the staff of power supply administration to carry out scene according to actual alarm indication information and check.
What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.
Claims (8)
1. a three-phase electricity monitoring device, is characterized in that, comprises signal gathering unit, controlled processing unit, wireless transmission unit and power supply unit; Wherein, described signal gathering unit gathers electric current and the voltage analog signal value of three-phase electricity; The electric current of collection and voltage analog signal value are converted into digital signal value by described controlled processing unit, performance number and the active energy value of three-phase is calculated according to the electric current after conversion and voltage digital signal value, when the unbalance factor that described performance number is less than default performance number or three phase power value exceedes default unbalance factor value, by generation warning indication information; Described wireless transmission unit by gather electric current and voltage digital signal value, the three phase power value calculated and active energy value, and produce warning indication information be transferred to power supply management control center, for back-stage management and control; Described power supply unit provides working power for described controlled processing unit.
2. three-phase electricity monitoring device as claimed in claim 1, it is characterized in that, described signal gathering unit comprises three-phase current sensor and three-phase voltage sensor, and described three-phase current sensor gathers the current value of three-phase electricity, and described three-phase voltage sensor gathers the magnitude of voltage of three-phase electricity.
3. three-phase electricity monitoring device as claimed in claim 2, is characterized in that, the three-phase voltage value of described three-phase voltage sensor collection is the magnitude of voltage of three-phase voltage after dividing potential drop and process.
4. three-phase electricity monitoring device as claimed in claim 1, it is characterized in that, the model that described controlled processing unit selects ST Microelectronics to produce is the chip of STM32F103X.
5. three-phase electricity monitoring device as claimed in claim 1, it is characterized in that, the power acquisition three-phase supply that described power supply unit provides is powered.
6. the three-phase electricity monitoring device according to any one of claim 1-5, it is characterized in that, described three-phase electricity monitoring device also comprises the clock unit for setting-up time interval, and the energy value of measuring in this setting-up time interval is transferred to power supply management control center by controlled processing unit described in timing controlled.
7. three-phase electricity monitoring device as claimed in claim 6, it is characterized in that, described three-phase electricity monitoring device also comprises the storage unit for storaging state information, event information and data message.
8. three-phase electricity monitoring device as claimed in claim 7, is characterized in that, described three-phase electricity monitoring device also comprises the warning indication information produced according to described controlled processing unit and carries out the alarm unit indicated of reporting to the police.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420487850.4U CN204086389U (en) | 2014-08-28 | 2014-08-28 | A kind of three-phase electricity monitoring device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420487850.4U CN204086389U (en) | 2014-08-28 | 2014-08-28 | A kind of three-phase electricity monitoring device |
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| CN204086389U true CN204086389U (en) | 2015-01-07 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105203156A (en) * | 2015-09-18 | 2015-12-30 | 成都比善科技开发有限公司 | Electricity monitoring method for three-phase power source |
| CN110794203A (en) * | 2019-11-08 | 2020-02-14 | 国网电子商务有限公司 | Method and equipment for measuring power consumption information of single production equipment in factory |
| CN112362978A (en) * | 2020-09-25 | 2021-02-12 | 国网辽宁省电力有限公司大连供电公司 | Three-phase power unbalance rapid detection method and device |
| CN113009405A (en) * | 2021-01-28 | 2021-06-22 | 国网河北省电力有限公司沧州供电分公司 | Three-phase power detection system and electronic equipment |
| CN113138316A (en) * | 2020-05-19 | 2021-07-20 | 吴沁莹 | User side electric energy data monitoring device and method |
| CN115456097A (en) * | 2022-09-22 | 2022-12-09 | 国网四川省电力公司自贡供电公司 | Power utilization detection method and detection terminal suitable for high-power-supply low-count special transformer users |
-
2014
- 2014-08-28 CN CN201420487850.4U patent/CN204086389U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105203156A (en) * | 2015-09-18 | 2015-12-30 | 成都比善科技开发有限公司 | Electricity monitoring method for three-phase power source |
| CN110794203A (en) * | 2019-11-08 | 2020-02-14 | 国网电子商务有限公司 | Method and equipment for measuring power consumption information of single production equipment in factory |
| CN113138316A (en) * | 2020-05-19 | 2021-07-20 | 吴沁莹 | User side electric energy data monitoring device and method |
| CN112362978A (en) * | 2020-09-25 | 2021-02-12 | 国网辽宁省电力有限公司大连供电公司 | Three-phase power unbalance rapid detection method and device |
| CN113009405A (en) * | 2021-01-28 | 2021-06-22 | 国网河北省电力有限公司沧州供电分公司 | Three-phase power detection system and electronic equipment |
| CN115456097A (en) * | 2022-09-22 | 2022-12-09 | 国网四川省电力公司自贡供电公司 | Power utilization detection method and detection terminal suitable for high-power-supply low-count special transformer users |
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Granted publication date: 20150107 Termination date: 20160828 |