CN205721286U - Anti-electricity-theft electric-power metering collecting terminal system - Google Patents
Anti-electricity-theft electric-power metering collecting terminal system Download PDFInfo
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- CN205721286U CN205721286U CN201620630149.2U CN201620630149U CN205721286U CN 205721286 U CN205721286 U CN 205721286U CN 201620630149 U CN201620630149 U CN 201620630149U CN 205721286 U CN205721286 U CN 205721286U
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- 238000004891 communication Methods 0.000 claims abstract description 40
- 238000012544 monitoring process Methods 0.000 claims abstract description 27
- 230000005611 electricity Effects 0.000 claims abstract description 19
- 238000002955 isolation Methods 0.000 claims abstract description 10
- 238000012545 processing Methods 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 14
- 230000008569 process Effects 0.000 claims description 9
- 238000009826 distribution Methods 0.000 abstract description 11
- 230000006855 networking Effects 0.000 abstract description 4
- 238000005457 optimization Methods 0.000 abstract description 4
- 238000004458 analytical method Methods 0.000 description 8
- 230000006870 function Effects 0.000 description 6
- 238000003860 storage Methods 0.000 description 6
- 238000004364 calculation method Methods 0.000 description 3
- 238000010205 computational analysis Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 238000007619 statistical method Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
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- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
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- 239000013589 supplement Substances 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
Abstract
The utility model discloses a kind of anti-electricity-theft electric-power metering collecting terminal system, including low-voltage acquisition terminal, load control terminal and high-voltage acquisition terminal, low-voltage acquisition terminal, load control terminal and high-voltage acquisition terminal are connected to remote monitoring module and electricity consumption supervisory terminal by wireless communication networks signal respectively, electric-power metering acquisition terminal includes current-voltage transformer group and power transformer, the power output end of current-voltage transformer group is electrically connected with input circuit, electric energy collection module, photoelectric isolation module and calculating and control module, the outfan of power transformer connects efficiently tolerance power supply supplying module；Power distribution network and transformator are monitored in real time, realize long-distance metering supervision and anti-stealing electricity function, and customer charge is monitored, the interface of the systems such as Power marketing system, SCADA system and MIS is realized by computer networking and software interface, realize data sharing, provide true service data for power distribution network optimization and study and judge foundation accurately.
Description
Technical field
This utility model relates to a kind of Application of Power Metering Instruments technical field, particularly relates to a kind of anti-electricity-theft electric-power metering intelligence
Can acquisition terminal system.
Background technology
In electric energy conveying and assigning process, greatly line loss (in electrical network active power and electricity loss of energy) be by
Lose what electricity caused in stealing and metering fault etc..Current remote automation is checked meter as improving modernization electrical network for electricity consumption
Management level play an important role, although power department have employed the methods such as enclosed metering box and carried out strengthening pipe
Control, but electric quantity loss is the most extremely serious.It addition, stealing also induces multiple factors leading to social instability, destroy economic order, danger
The safe operation of evil electrical network.The various power automatic system line loss analyzing schemes of current each power department exploitation, are not purely
The line loss on-line monitoring caused for stealing factor in meaning, the comprehensive line loss that therefore cannot complete alone whole system is divided
Analysis, particularly cannot effectively prevent the generation of leaky.Traditional anti-electricity-theft inspection mainly relies on generaI investigation of manually doing business,
This method poor in timeliness, generally investigate not in place, it is difficult to grasp in real time the operation conditions of power distribution network, it is impossible to accurately provide electricity filching behavior
Time, place and the related data occurred, especially when electrical network exists distorted waveform, is more difficult to ensure that electric-power metering
Accuracy.
Therefore, it is necessary to take measures of anti-stealing electricity from source, i.e. from mains side management anti-electricity-theft, from systematic analysis anti-electricity-theft and
Investigate and prosecute stealing, power distribution network and transformator outlet summary table are carried out omnibearing real-time monitoring, from proposing to solve the safety of data
With the problem of internetworking, novel high-pressure intelligent acquisition, the most anti-electricity-theft and power system communication mode are studied, as
What effectively carry out anti-electricity-theft, for power distribution network optimization provide true service data, become main research contents.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of anti-electricity-theft electric-power metering collecting terminal system
System, is monitored transformer station, feeder line, branch road, transformator and metering device and is controlled load, thus formed more than one
Level, gridding, anti-electricity-theft monitoring system that high voltage and low voltage parameters assisted mutually, independent acquisition and remote meter reading combine and load
Management control system.
For solving above-mentioned technical problem, the technical solution of the utility model is: anti-electricity-theft electric-power metering intelligent acquisition is eventually
End system, including low-voltage acquisition terminal, load control terminal and high-voltage acquisition terminal, described low-voltage acquisition terminal, described load
Control terminal and described high-voltage acquisition terminal and be connected to remote monitoring module by wireless communication networks signal respectively, described remotely
Monitoring module connects has electricity consumption supervisory terminal, described wireless communication networks to be also associated with electric-power metering acquisition terminal, described electric power
Metering acquisition terminal includes current-voltage transformer group and the power transformer being connected on high voltage bus, and described current/voltage is mutual
The power output end of sensor group is electrically connected with input circuit, and described input circuit connects has electric energy collection module, described electric energy to adopt
The outfan of collection module is provided with photoelectric isolation module, and described photoelectric isolation module connects calculating and control module, described power supply
The outfan of transformer connects efficiently tolerance power supply supplying module.
As preferred technical scheme, described calculating and control module include controlling computer, and described control computer is even
It is connected to memory module, electrification reset and watchdog module, communication interface module, information display module and control pulse output mould
Block.
As preferred technical scheme, described efficient tolerance power supply supplying module includes being connected to described power transformer electricity
The rectification circuit of power outfan, described rectification circuit is connected in parallel to overvoltage control circuit, and the outfan of described rectification circuit depends on
Secondary connection has filter circuit and DC-DC converter and power inverter.
As preferred technical scheme, described high-voltage acquisition terminal includes high-voltage mutual inductor, described high-voltage mutual inductor defeated
Going out to hold connection to have high-pressure data acquisition module, the outfan of described high-pressure data acquisition module connects has high-pressure data to process mould
Block, the outfan of described high-pressure data processing module connects has the first communication module, the outfan of described high-voltage mutual inductor also to connect
Being connected to the first power module, described first power module is respectively electrically connected at described first communication module, described high-pressure data
Reason module, described high-pressure data acquisition module.
As preferred technical scheme, described low-voltage acquisition terminal includes low pressure data acquisition module, described low pressure data
The outfan of acquisition module connects to be had low pressure data processing module, described low pressure data processing module to be provided with agreement to check meter and connect
Mouthful, the outfan of described low pressure data processing module connects the second communication module, the output of described low pressure data acquisition module
End is also associated with second source module, and described second source module is respectively electrically connected to described second communication module, described low pressure
Data processing module, described low pressure data acquisition module.
As preferred technical scheme, described in state the input of low pressure data acquisition module and connect and have low voltage mutual inductor.
It is set to GPRS wireless network as preferred technical scheme, described first communication module and described second communication module
Network, cdma wireless network, gsm wireless network or wire communication interface.
As preferred technical scheme, described load control terminal includes the embedded ARM processor of 32, described embedding
Formula arm processor connects digital signal processor DSP.
As the improvement to technique scheme, described remote monitoring module includes monitoring computer, and described monitoring calculates
Machine connects database server.
Owing to have employed technique scheme, the beneficial effects of the utility model are: from mains side management, to distribution
Net and transformator summary table carry out comprehensive real-time monitoring, it is achieved long-distance metering supervision and anti-stealing electricity function, and to customer charge
It is monitored, is realized the interface of the systems such as Power marketing system, SCADA system and MIS by computer networking and software interface,
Realize data sharing, provide true service data for power distribution network optimization and study and judge foundation accurately.
Accompanying drawing explanation
The following drawings is only intended to, in schematically illustrating this utility model and explaining, not limit model of the present utility model
Enclose.Wherein:
Fig. 1 is the structured flowchart of this utility model embodiment；
Fig. 2 is the structured flowchart of this utility model embodiment electric-power metering acquisition terminal；
Fig. 3 is the circuit theory diagrams that this utility model embodiment efficiently extends the deadline power supply supplying module；
Fig. 4 is the structured flowchart of this utility model embodiment high-voltage acquisition terminal；
Fig. 5 is the structured flowchart of this utility model embodiment low-voltage acquisition terminal；
Fig. 6 is the low-voltage acquisition terminal structured flowchart of this utility model embodiment band low voltage mutual inductor；
Fig. 7 is the main program flow chart of the low-voltage acquisition terminal of this utility model embodiment band low voltage mutual inductor；
Fig. 8 is this utility model embodiment main program flow chart without the low-voltage acquisition terminal of low voltage mutual inductor；
Fig. 9 is the Communication processing program flow diagram of the low-voltage acquisition terminal of this utility model embodiment band low voltage mutual inductor；
Figure 10 is this utility model embodiment Communication processing program circuit without the low-voltage acquisition terminal of low voltage mutual inductor
Figure；
Figure 11 is the relation schematic diagram between structure and internal each thread of this utility model embodiment remote monitoring module.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment, this utility model is expanded on further.In the following detailed description, only by saying
Bright mode describes some one exemplary embodiment of the present utility model.Undoubtedly, those of ordinary skill in the art is permissible
Recognize, in the case of without departing from spirit and scope of the present utility model, can be by various different modes to described
Embodiment is modified.Therefore, accompanying drawing and description are inherently protection that is the most illustrative rather than that be used for limiting claim
Scope.
As depicted in figs. 1 and 2, anti-electricity-theft electric-power metering collecting terminal system, including low-voltage acquisition terminal, load
Controlling terminal and high-voltage acquisition terminal, described low-voltage acquisition terminal is provided with agreement meter reading interface, described low-voltage acquisition terminal, institute
State load control terminal and described high-voltage acquisition terminal is connected to remote monitoring module by wireless communication networks signal respectively, institute
Stating remote monitoring module connection has electricity consumption supervisory terminal, described wireless communication networks to be also associated with electric-power metering acquisition terminal, institute
State current-voltage transformer group and power transformer that electric-power metering acquisition terminal includes being connected on high voltage bus, described electric current
The power output end of voltage transformer group is electrically connected with input circuit, and described input circuit connects electric energy collection module, described
The outfan of electric energy collection module is provided with photoelectric isolation module, and described photoelectric isolation module connects calculating and control module, institute
The outfan connection stating power transformer has efficiently tolerance power supply supplying module.Described load control terminal includes the embedding of 32
Formula arm processor, described embedded ARM processor connects digital signal processor DSP.Described remote monitoring module includes prison
Control computer, described monitoring computer connects database server.
As it is shown in figure 1, described calculating and control module include controlling computer, described control computer connects storage mould
Block, electrification reset and watchdog module, communication interface module, information display module and control pulse output module.Such as Fig. 3 institute
Showing, described efficient tolerance power supply supplying module includes the rectification circuit being connected to described power transformer power output end, described
Rectification circuit is connected in parallel to overvoltage control circuit, and the outfan of described rectification circuit is connected with filter circuit and DC-DC in turn
Changer and power inverter.
The power supply energy that described efficient tolerance power supply supplying module is formed comes from the sensing of high voltage bus electric current completely and produces electricity
Can, use electromagnetic induction principle, by the most described power transformer of ferrum magnetic type transformer, the electric current from bus senses
To an alternating voltage, be then converted to galvanic current pressure by Full wave shape rectification, utilize described DC-DC further according to needs
Changer and described power inverter provide each step voltage, it addition, in order to supplement the changer sending-end impedance causing instability,
A jumbo electrochemical capacitor can be added at the input of described DC-DC converter.
The present embodiment have employed modular method for designing, and for realizing omnibearing anti-stealing electricity function, system devises institute
State high-voltage acquisition terminal to carry out high-pressure side voltage acquisition, described electric-power metering acquisition terminal and described current-voltage transformer group and enter
Row data acquisition control, and utilize described electric-power metering acquisition terminal carry out signal conversion and through described input circuit adjust and
Be acquired after joining, obtain electric energy relevant parameter, can by fieldbus or wireless communication networks etc. be delivered to described calculating and
Control module preserves and processes.Each acquisition module can complete the preliminary analysis of data, it is thus achieved that the duty of device.This
Outward, the single-chip microcomputer on each acquisition module can also complete the preliminary analysis of data, it is thus achieved that the duty of device, such as mutual induction of voltage
Device decompression or phase shortage, current transformer is short-circuit, uneven etc. mutually.After continuous data is analyzed by calculating and control module, can
It is divided into four tunnels: one is to deliver to described memory module i.e. E2PROM；Two is to deliver to described information display module show, described letter
Breath display module is set to Multifunctional liquid crystal display module；Three is to be exported by described control pulse output interface；Can also lead to
Cross the extension of described communication interface module remotely control, data upload function.Wherein memory module also includes non-volatile memory module,
It is used for preserving the parameter of various definite value and setting.Described electrification reset and watchdog module are for the electric power system to whole system
Power supply be continuously monitored, when power supply occurs abnormal, will notify that described calculating and control module preserve data and state also
Resetting, described photoelectric isolation module can complete the transmitted in both directions of the control signal of data, and ensure described electric energy collection module
With the high_voltage isolation of subsequent treatment module, described efficient tolerance power supply supplying module provides each step voltage, containing modular circuit electricity consumption
Source, controller digital circuit power supply and the digital circuit power source etc. of full isolation.
By said structure, the present embodiment can realize remote meter reading, metering supervision, anti-electricity-theft, it is also possible to electric power use
The load at family is monitored.Concrete is: by having the described low-voltage acquisition terminal of agreement meter reading interface, to gather monitoring point former
The measuring parameter of some metering devices, uses described high-voltage acquisition terminal and carries described low voltage mutual inductor or without described low pressure
The described low-voltage acquisition terminal of transformer is Real-time Collection power distribution network transformer station critical point, circuit, the high-pressure side of power load end, low
The data such as the pressure secondary current of side, working voltage, power factor, active power, reactive power, and through without described radio communication network
Network uploads to described remote monitoring module.
As shown in Figure 4, described high-voltage acquisition terminal includes high-voltage mutual inductor, and the outfan of described high-voltage mutual inductor connects to be had
High-pressure data acquisition module, the outfan of described high-pressure data acquisition module connects high-pressure data processing module, described high pressure
The outfan of data processing module connects has the first communication module, the outfan of described high-voltage mutual inductor to be also associated with the first power supply
Module, described first power module is respectively electrically connected to described first communication module, described high-pressure data processing module, described height
Pressure data acquisition module, described high-pressure data acquisition module and described high-pressure data processing module could be arranged to single-chip microcomputer.
As shown in Fig. 5, Fig. 8 and Figure 10, described low-voltage acquisition terminal includes low pressure data acquisition module, described low pressure data
The outfan of acquisition module connects to be had low pressure data processing module, described low pressure data processing module to be provided with agreement to check meter and connect
Mouthful, the outfan of described low pressure data processing module connects the second communication module, the output of described low pressure data acquisition module
End is also associated with second source module, and described second source module is respectively electrically connected to described second communication module, described low pressure
Data processing module, described low pressure data acquisition module, described low pressure data acquisition module and described low pressure data processing module
It can also be provided that single-chip microcomputer.During use, it is contained in the secondary outlet side of metering transformer, i.e. transformer and metering device (intelligence
Energy ammeter) between, the agreement completing each parameter to telex is checked meter.
As shown in Fig. 6, Fig. 7 and Fig. 9, described in state the input of low pressure data acquisition module and connect and have low voltage mutual inductor, suitable
Metering device for monitoring point is mechanical type or other is without the situation of data-interface, uses the collection of band combination transformer
Terminal, independently completes the collection of each parameter.This type of described low-voltage acquisition terminal is provided with three single phase low voltage current transformers, permissible
The operational factor of transformator is acquired or the table meter information of integrated multiple user, completes what table various to user counted
Collect.Described first communication module in the present embodiment and described second communication module be set to GPRS wireless network, CDMA without
Gauze network, gsm wireless network or wire communication interface.
As shown in Figure 9 and Figure 10, the Communication processing program of described low-voltage acquisition terminal is adapted to carry out described low pressure data
Data communication between acquisition module and described low pressure data processing module, serial terminal service routine accepts serial data to slow
Rushing in district, Communication processing program is monitored serial ports in real time and is received relief area, then processes if the effective data of frame.Communication processing
Program achieves each phase voltage, the demarcation of active power, sends each electrical parameter data, module configuration to system data processing module
Read-write the function such as copy back.
As shown in figure 11, the monitoring programme of described remote monitoring module uses foreground man machine interface, and back-end data receives, meter
The mode of calculation and Analysis and historical statistics thread is carried out.Need a local data base, by accept real time data and point
Analysis result is stored in local data.In order to improve computational efficiency and the distribution of average calculation consumption, by the reception of data and storage,
Anti-electricity-theft computational analysis and electric energy realize as three independent threads.Main interface is used for showing and inquiring about, data receiver
Storage thread is and the interface thread of ground field reception retransmission process, receives the real-time data collection of retransmission process, sends setting
Order to accepting retransmission process, storage new data and warning message to local data base.Computational analysis thread is former to receive
Beginning data carry out computational analysis, analysis result are given reception storage thread to be stored in data base.Electric energy statistics thread is to data
Historical data in storehouse carries out statistical analysis, in order to completes the statistical computation of historical data at one's leisure and result of calculation is sent
It is stored in local data base to data receiver storage thread.
This utility model have employed modular design pattern, further increases anti-by the system integration and actual application
Stealing function, solves the input instability problem of DC-DC converter during power supply supplies, it is possible to achieve multistage, networking
The acquisition terminal high and low pressure side power information data to real-time monitoring and original metering device data carry out multidirectional comparison,
Data are stored in data base by described monitoring computer, the statistical analysis classifying data, automatically calculate and draw out each prison
Measuring point load curve, electric quantity curve, high-low pressure electricity relative analysis and multiplexing electric abnormality etc., vivid analyzes actual moving process
In load condition.
This utility model, from mains side management, carries out comprehensive real-time monitoring to power distribution network and transformator summary table, real
Existing long-distance metering supervision and anti-stealing electricity function, and customer charge is monitored, real by computer networking and software interface
The interface of the systems such as existing Power marketing system, SCADA system and MIS, it is achieved data sharing, provides true fortune for power distribution network optimization
Row data and study and judge foundation accurately.
Of the present utility model ultimate principle, principal character and of the present utility model advantage have more than been shown and described.One's own profession
Skilled person will appreciate that of industry, this utility model is not restricted to the described embodiments, described in above-described embodiment and description
Principle of the present utility model is simply described, on the premise of without departing from this utility model spirit and scope, this utility model is also
Have various changes and modifications, in the range of these changes and improvements both fall within claimed this utility model.This utility model
Claimed scope is defined by appending claims and equivalent thereof.
Claims (9)
- The most anti-electricity-theft electric-power metering collecting terminal system, adopts including low-voltage acquisition terminal, load control terminal and high pressure Collection terminal, described low-voltage acquisition terminal, described load control terminal and described high-voltage acquisition terminal pass through radio communication network respectively Network signal is connected to remote monitoring module, and described remote monitoring module connects electricity consumption supervisory terminal, it is characterised in that: described nothing Line communication network is also associated with electric-power metering acquisition terminal, and described electric-power metering acquisition terminal includes being connected on high voltage bus Current-voltage transformer group and power transformer, the power output end of described current-voltage transformer group is electrically connected with input electricity Road, described input circuit connects has electric energy collection module, the outfan of described electric energy collection module to be provided with photoelectric isolation module, institute Stating photoelectric isolation module connection and have calculating and control module, the outfan of described power transformer connects efficiently tolerance power supply confession To module.
- Anti-electricity-theft electric-power metering collecting terminal system the most as claimed in claim 1, it is characterised in that: described calculating and Control module includes controlling computer, and described control computer connects memory module, electrification reset and watchdog module, communication Interface module, information display module and control pulse output module.
- Anti-electricity-theft electric-power metering collecting terminal system the most as claimed in claim 1, it is characterised in that: described efficient width The source supplying module of rationing the power supply includes the rectification circuit being connected to described power transformer power output end, and described rectification circuit parallel connection is even Being connected to overvoltage control circuit, the outfan of described rectification circuit is connected with filter circuit and DC-DC converter in turn and power supply is inverse Become device.
- Anti-electricity-theft electric-power metering collecting terminal system the most as claimed in claim 1, it is characterised in that: described high pressure is adopted Collection terminal includes high-voltage mutual inductor, and the outfan of described high-voltage mutual inductor connects high-pressure data acquisition module, described high pressure number Connecting according to the outfan of acquisition module and have high-pressure data processing module, the outfan of described high-pressure data processing module connects the One communication module, the outfan of described high-voltage mutual inductor is also associated with the first power module, described first power module electricity respectively It is connected to described first communication module, described high-pressure data processing module, described high-pressure data acquisition module.
- Anti-electricity-theft electric-power metering collecting terminal system the most as claimed in claim 4, it is characterised in that: described low pressure is adopted Collection terminal includes low pressure data acquisition module, and the outfan of described low pressure data acquisition module connects has low pressure data to process mould Block, described low pressure data processing module is provided with agreement meter reading interface, and the outfan of described low pressure data processing module connects to be had Second communication module, the outfan of described low pressure data acquisition module is also associated with second source module, described second source mould Block is respectively electrically connected to described second communication module, described low pressure data processing module, described low pressure data acquisition module.
- Anti-electricity-theft electric-power metering collecting terminal system the most as claimed in claim 5, it is characterised in that state low pressure described in: The input of data acquisition module connects low voltage mutual inductor.
- Anti-electricity-theft electric-power metering collecting terminal system the most as claimed in claim 6, it is characterised in that: described first leads to News module and described second communication module are set to GPRS wireless network, cdma wireless network, gsm wireless network or wire communication Interface.
- 8. the anti-electricity-theft electric-power metering collecting terminal system as described in claim 1 to 7 any claim, its feature Being: described load control terminal includes the embedded ARM processor of 32, described embedded ARM processor connects numeral Signal processor DSP.
- Anti-electricity-theft electric-power metering collecting terminal system the most as claimed in claim 8, it is characterised in that: described long-range prison Control module includes monitoring computer, and described monitoring computer connects database server.
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| CN201620630149.2U CN205721286U (en) | 2016-06-23 | 2016-06-23 | Anti-electricity-theft electric-power metering collecting terminal system |
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| CN201620630149.2U CN205721286U (en) | 2016-06-23 | 2016-06-23 | Anti-electricity-theft electric-power metering collecting terminal system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105938346A (en) * | 2016-06-23 | 2016-09-14 | 国网山东省电力公司安丘市供电公司 | Electricity larceny prevention power metering intelligent acquisition terminal system |
| CN111176160A (en) * | 2019-12-26 | 2020-05-19 | 国网山东省电力公司莱芜供电公司 | Remote low-voltage load intelligent control system |
-
2016
- 2016-06-23 CN CN201620630149.2U patent/CN205721286U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105938346A (en) * | 2016-06-23 | 2016-09-14 | 国网山东省电力公司安丘市供电公司 | Electricity larceny prevention power metering intelligent acquisition terminal system |
| CN111176160A (en) * | 2019-12-26 | 2020-05-19 | 国网山东省电力公司莱芜供电公司 | Remote low-voltage load intelligent control system |
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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: 20161123 Termination date: 20190623 |