CN109301934A - A kind of power load monitoring system realized by wireless telecommunications - Google Patents
A kind of power load monitoring system realized by wireless telecommunications Download PDFInfo
- Publication number
- CN109301934A CN109301934A CN201811087013.1A CN201811087013A CN109301934A CN 109301934 A CN109301934 A CN 109301934A CN 201811087013 A CN201811087013 A CN 201811087013A CN 109301934 A CN109301934 A CN 109301934A
- Authority
- CN
- China
- Prior art keywords
- power
- terminal
- load monitoring
- control room
- load
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000012544 monitoring process Methods 0.000 title claims abstract description 44
- 238000004891 communication Methods 0.000 claims abstract description 26
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 6
- 230000006870 function Effects 0.000 claims description 16
- 230000005611 electricity Effects 0.000 claims description 8
- 238000012545 processing Methods 0.000 claims description 4
- 239000008358 core component Substances 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 230000009131 signaling function Effects 0.000 claims description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims 2
- 238000007726 management method Methods 0.000 abstract description 8
- 239000006185 dispersion Substances 0.000 abstract description 3
- 238000010248 power generation Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- 208000018672 Dilatation Diseases 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- H02J13/0075—
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
Abstract
The present invention has the characteristics of " user is more; range is wide, dispersion, information content are little " for the communication of current electric power load monitoring and control, a kind of power load monitoring system realized by wireless telecommunications is provided, it is lower and the technical issues of have a single function to solve existing load monitoring system communication efficiency.System, including central control room, central control room pass through the radio repeater station electric power load monitoring and control terminal both-way communication with the electric power load monitoring and control terminal of bidirectional terminal and secondary bidirectional terminal respectively.This system realizes electric load remotely intelligently monitoring using wireless ad hoc network, while having the function of higher management, anti-electricity-theft and remote meter reading.The foundation of science decision is provided for the load prediction of electric system, planning and designing and power generation plan, is conducive to power grid security economical operation.
Description
Technical field
The present invention relates to electric power load monitoring and control technology, specially a kind of electric power load monitoring and control system realized by wireless telecommunications
System.
Background technique
Most of existing power load monitoring system is built in the 80's of 20th century, and major function is balance and control
Power load, but this system having a single function has been unable to meet the requirement of modern electric management.Existing electric power load monitoring and control
System is broadly divided into the realization of RS -485 bus mode, low-voltage power carrier mode, public telephone from the angle of communication modes
Net and wireless data radio communication etc., they respectively have advantage and disadvantage.RS -485 bus mode strong antijamming capability, but transmit
It is closer, the limited amount system of terminal；Low-voltage power carrier mode does not need additionally to be laid with communication line, but electromagnetism interference
Ability is poor；Public telephone network reliable communications, but need to hand over certain service charge to telecommunication department, also may be used when communicating peak
It can blocking；Wireless data radio communication has many advantages, such as communication loop independence, long transmission distance.It is communicated for electric power load monitoring and control
The characteristics of with " user is more, and range is wide, dispersion, information content are little ", as can applying the mode of wireless telecommunications in electric load
In monitoring system, it will sufficiently meet the requirement of modern electric management.Existing traditional electric system simultaneously has a single function (only
Can balance and control power load) the problem of be also required to overcome.
Summary of the invention
The present invention has " user be'ss more, and range is wide, dispersion, information content are little " for the communication of current electric power load monitoring and control
Feature provides a kind of power load monitoring system realized by wireless telecommunications, solves existing load monitoring system communication effect
Rate is lower and the technical issues of having a single function.
Realization that the present invention adopts the following technical solutions: a kind of electric power load monitoring and control system realized by wireless telecommunications
System, including central control room, central control room pass through the wireless communication mode electric power load monitoring and control with a bidirectional terminal respectively
The electric power load monitoring and control terminal both-way communication of terminal and secondary bidirectional terminal.
Further, monitor terminal can be divided into according to monitor terminal grade or area by different works in central control room
Make group, in order to groups operation；System has distant control function, can group control, can also individually be remotely controlled, central control room is by distant
The scheme of rationing the power supply to user is realized in control；System has telemetry function, is broadly divided into and patrols survey and choosing survey, i.e. timing automatic telemetering is respectively used
The information or automatic telemetering particular group at family, telemetering amount are as follows: electric current, voltage, active power, power factor, active energy,
Capacity of idle power, excess load tripping times etc.；System has remote signaling function, and central control room receives that user is controlled to open in prescribed way
Off status information, the status information of exit relay and local state information；Central control room buys day part electricity according to user
Amount input host computer realizes local closed-loop control by being wirelessly transmitted to controlling terminal；
Further, the hardware of central control room includes two industrial personal computer 1, industrial personal computer 2(industrial personal computers as host computer), database
Server, GPS device, multimedia, two data radio stations, printer and uninterruptible power supply as radio repeater station；Center control
Room processed uses two industrial personal computers, and under normal circumstances, industrial personal computer 1 runs well, and realizes monitor terminal instruction and control parameter data
Information sends and receives, and carries out human-computer dialogue, type information document；Industrial personal computer 2 is in warm standby state, and monitors master control
The operating status of machine 1, once industrial personal computer 1 is faulty to be immediately switched to industrial personal computer 2；Database server is used to store operation letter
Breath and through main controller treated data information；Two industrial personal computers pass through between D-L IN K switch-to-server
Client/ Server structure is unified into 10/ 100M Ethernet, customer side of the industrial personal computer as system, and other PC machines are authorized
After server can directly be accessed by Internet；Multimedia system is for Dynamically Announce terminal in geographical position and equipment
The working condition and real-time parameter of information and terminal；Satellite clock is received using a GPS device, to entire control system
Unite accurate school when；Uninterruptible power supply guarantees the normal operation of system in central control room power supply system accident power-off.
Electric power load monitoring and control terminal hardware includes wireless communication line, control output circuit, Key and display circuit and prevents
Stealing modular circuit；The module for anti-fraudulent circuit includes electricity processing module and sets idle Sign module；
Wireless communication line is mainly used for terminal and central control room and monitor terminal data exchange, and core component is modulation /demodulation
Chip (MSP430) and data radio station；
Keyboard and display circuit are operated a switch for the setting of setting terminal address and local presetting 1#, 2 #, 3 # on-load switches
The setting of load, the load of operating a switch of switch can also be passed down by host computer (industrial personal computer), and load setting has cryptoguard；Control
Output circuit is operated a switch switch for controlling load, and the active and idle pulse of intelligent electric meter inputs after 74LS367 shaping
MSP430 often receives pulse and calculates an instantaneous power, the mean power of calculating in every 20 minutes, when 1#, 2 #,
When 3 # on-load switch mean powers reach the setting value of power consumption index, control of operating a switch is carried out.
System has long-distance meter-reading system, anti-electricity-theft, powerful management, automatically records historical relevance data, automatically generates
The function of the history archives such as various daily sheet moon sheets；System is safe and reliable, there is multistage operations password, automatic cipher protection；It adopts
With electronics map denotation, it can be achieved that map scaling and smooth browsing, reach that both pictures and texts are excellent and effect easy to use；With in dialing
Net can enter monitoring system and browse monitoring data；System communication capacity and monitor terminal can unlimited dilatations.
This system realizes electric load remotely intelligently monitoring using wireless ad hoc network, while having higher management, anti-electricity-theft
With the function of remote meter reading.For the load prediction of electric system, planning and designing and power generation plan provide science decision according to
According to being conducive to power grid security economical operation.The system can implement effective monitoring to user, at low cost, reliable and stable, can obtain
Good economic results in society.
Detailed description of the invention
The structural schematic diagram of Fig. 1 system of the present invention.
Fig. 2 electric power load monitoring and control terminal structure schematic diagram.
Specific embodiment
The present invention is a set of to integrate management, load monitoring, remote meter reading and anti-electricity-theft using special wireless network
Power load monitoring system.
1, the major function that system is realized: user (can be monitored eventually according to user gradation or area in central control room
End) it is divided into different working groups, in order to groups operation；System have distant control function, can group control, can also individually it is distant
Control, central control room realize the scheme of rationing the power supply to user by remote control；System has telemetry function, is broadly divided into and patrols survey and choosing
It surveys, i.e. the information or automatic telemetering particular group of each user of timing automatic telemetering, telemetering amount are as follows: electric current, voltage, wattful power
Rate, power factor, active energy, capacity of idle power, excess load tripping times etc.；System has remote signaling function, and central control room is pressed
Prescribed manner receives user's controlled switch status information, the status information of exit relay and local state information；Center control
Room buys day part electricity according to user and inputs host computer, by being wirelessly transmitted to controlling terminal, realizes local closed-loop control；System
System has long-distance meter-reading system, anti-electricity-theft, powerful management, automatically records historical relevance data, automatically generates various daily sheets
The function of the history archives such as moon sheet；System is safe and reliable, there is multistage operations password, automatic cipher protection；Using electronic map
Display reaches that both pictures and texts are excellent and effect easy to use, it can be achieved that map scaling and smooth browsing；It can be entered with dialling up on the telephone
Monitoring system browses monitoring data；System communication capacity and monitor terminal can unlimited dilatations.
2, the chief component of system: system is mainly by central control room, wireless communication, electric power load monitoring and control terminal three
Part forms.Its system structure is as shown below, and wherein dotted arrow indicates wireless telecommunications, and solid line double-head arrow indicates cable modem
News.
(1), central control room: central control room is mainly responsible for monitoring and manages the operation of whole system and record its operation
Situation.Hardware mainly by main controller 1, main controller 2, server, GPS, multimedia, two data radio stations, printer and not between
The part such as power-off source (UPS) forms.System uses two industrial personal computers, and under normal circumstances, main controller 1 runs well, and realizes monitoring
The data informations such as end command and control parameter send and receive, and carry out human-computer dialogue, type information document etc., main controller
2 are in warm standby state, and monitor the operating status of main controller 1, once main controller 1 is faulty to be immediately switched to main controller 2.
The database server of system is primarily used to deposit operation information and through main controller treated data information.Two industrial personal computers
10/ 100M Ethernet, master control are unified by Client/ Server structure between D-L IN K switch-to-server
Customer side of the machine as system can directly access server by Internet after other PC machines are authorized, so both can be with
It realizes data sharing, and cross-region may be implemented and remotely monitor.Multimedia system is for Dynamically Announce terminal in geographical position
With the working condition and real-time parameter of facility information and terminal.(such as excess load, stealing when a certain terminal abnormal of inspection
Deng), the automatic enlarged drawing of system simultaneously shows device location, mark, information etc..Satellite clock is received using a GPS device,
When to the accurate school of entire control system.Uninterruptible power supply guarantees system just in central control room power supply system accident power-off
Often operation.
(2), electric power load monitoring and control terminal: power monitoring terminal is both the remote measurement and control unit and self fortune of system
Row ability realizes local closed-loop control.Hardware mainly includes wireless communication line, control output circuit, Key and display circuit
With module for anti-fraudulent circuit etc., structure is as shown in Figure 2.
Wireless communication line is mainly used for terminal and central control room and monitor terminal data exchange, and core component is
Modem chip and data radio station.
Keyboard and display circuit are for the setting of setting terminal address and local presetting 1#, 2 #, 3 # on-load switches
It operates a switch load, the setting of the load of operating a switch of switch can also be passed down by host computer (industrial personal computer), and load setting has cryptoguard.Control
Output circuit processed is operated a switch switch for controlling load, and the active and idle pulse of intelligent electric meter inputs after 74LS367 shaping
MSP430 often receives a pulse and calculates an instantaneous power, the mean power of calculating in every 20 minutes, when mean power reaches
To power consumption index setting value (such as 1 #, 2 #, 3 # on-load switches are set to 90 %, 95 %, 100 %) when, carry out draw
Lock control.
3, monitor system software designs: software systems are developed under Win2000 environment, and server uses
Win2000 Server, Chinese service database management software are MSSQL Server2000.Software tool uses Mapinfo
The exploitation software such as GIS (Geography Information System), VB610 and MapX of company's exploitation.System knot
Structure uses C/ S mode.Main control software is run on industrial personal computer, built in ADO pass through the SQL on network access server
Data in Server database.By the organic integration of Win2000, VB, MapX, main control software is made to have perfect reality
When monitoring function and information management function.
4, electric power load monitoring and control terminal software designs: the software development environment of monitor terminal is using IAR company
WIN2DOWS WORKBENCH software, that match therewith is the exploitation software MSP-FET430P140 that TI company provides,
The achievable design coding of user, simulated operation, using test etc. work, by under PC environment J IAG control realize FLASH
Programming.
Monitor terminal includes communication module, real-time display and keyboard process module, control output module, electricity processing mould
Block sets idle Sign module etc..Communication uses interrupt mode.Electricity processing module calculates active power, active energy, accumulative electricity
Amount, day coincidence rate, reactive power and power factor etc., if maximum power consumption index and planned supply and use of electric power index exceeding standard, set corresponding mark
Will position.It controls output module and controls the corresponding actuating of relay according to exceeded actual conditions.
Claims (4)
1. a kind of power load monitoring system realized by wireless telecommunications, which is characterized in that including central control room, center control
Room processed passes through the wireless communication mode electric power with the electric power load monitoring and control terminal of bidirectional terminal and secondary bidirectional terminal respectively
Load monitoring terminal both-way communication.
2. a kind of power load monitoring system realized by wireless telecommunications as described in claim 1, which is characterized in that in
Monitor terminal can be divided into different working groups according to monitor terminal grade or area by centre control room, in order to groups operation；
System has distant control function, can group control, can also individually be remotely controlled, central control room is realized by remote control to the side of rationing the power supply of user
Case；System has telemetry function, is broadly divided into and patrols survey and choosing survey, i.e. the information of each user of timing automatic telemetering or automatic telemetering is special
Determine user group, telemetering amount are as follows: electric current, voltage, active power, power factor, active energy, capacity of idle power, excess load tripping time
Number；System has remote signaling function, and central control room receives user's controlled switch status information, exit relay in prescribed way
Status information and local state information；Central control room buys day part electricity according to user and inputs host computer, by wirelessly sending out
It is sent to monitor terminal, realizes local closed-loop control.
3. a kind of power load monitoring system realized by wireless telecommunications as claimed in claim 1 or 2, which is characterized in that
The hardware of central control room include industrial personal computer 1, industrial personal computer 2, database server, GPS device, multimedia, as in wireless
After two data radio stations, printer and the uninterruptible power supply at station；Central control room uses two industrial personal computers, under normal circumstances, work
Control machine 1 runs well, and the instruction of realization monitor terminal sends and receives with control parameter data information, carries out human-computer dialogue, beats
Print information document；Industrial personal computer 2 is in warm standby state, and monitors the operating status of main controller 1, once industrial personal computer 1 is faulty
It is immediately switched to industrial personal computer 2；Database server is used to store operation information and through main controller treated data information；Two
Industrial personal computer is unified into 10/ 100M ether by Client/ Server structure between D-L IN K switch-to-server
Net, customer side of the industrial personal computer as system can directly access server by Internet after other PC machines are authorized；It is more
Working condition and real-time parameter of the media system for Dynamically Announce terminal in geographical position and facility information and terminal；
Satellite clock is received using a GPS device, when to the accurate school of entire control system；Uninterruptible power supply is supplied in central control room
When electric system accident power-off, guarantee the normal operation of system.
4. a kind of power load monitoring system realized by wireless telecommunications as claimed in claim 1 or 2, which is characterized in that
Electric power load monitoring and control terminal hardware includes wireless communication line, control output circuit, Key and display circuit, intelligent electric meter and prevents
Stealing modular circuit；The module for anti-fraudulent circuit includes electricity processing module and sets idle Sign module；
Wireless communication line is mainly used for monitor terminal and central control room data exchange, and core component is modem chip
MSP430 and data radio station；
Keyboard and display circuit are operated a switch for the setting of setting terminal address and local presetting 1#, 2 #, 3 # on-load switches
The setting of load, the load of operating a switch of switch can also be by passing under the host computer of central control room, and load setting has cryptoguard；Control
Output circuit processed is operated a switch switch for controlling load, and the active and idle pulse of intelligent electric meter inputs after 74LS367 shaping
MSP430 often receives a pulse and calculates an instantaneous power, the mean power of calculating in every 20 minutes, as 1#, 2 #, 3
When # on-load switch mean power reaches the setting value of power consumption index, control of operating a switch is carried out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811087013.1A CN109301934A (en) | 2018-09-18 | 2018-09-18 | A kind of power load monitoring system realized by wireless telecommunications |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811087013.1A CN109301934A (en) | 2018-09-18 | 2018-09-18 | A kind of power load monitoring system realized by wireless telecommunications |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109301934A true CN109301934A (en) | 2019-02-01 |
Family
ID=65163451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811087013.1A Pending CN109301934A (en) | 2018-09-18 | 2018-09-18 | A kind of power load monitoring system realized by wireless telecommunications |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109301934A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110866745A (en) * | 2019-11-14 | 2020-03-06 | 国网山西省电力公司忻州供电公司 | Household electricity payment management system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6675071B1 (en) * | 1999-01-08 | 2004-01-06 | Siemens Transmission & Distribution. Llc | Power quality utility metering system having waveform capture |
| CN102981441A (en) * | 2012-11-13 | 2013-03-20 | 国网电力科学研究院 | Monitoring and protecting device and system and method of electrical load |
-
2018
- 2018-09-18 CN CN201811087013.1A patent/CN109301934A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6675071B1 (en) * | 1999-01-08 | 2004-01-06 | Siemens Transmission & Distribution. Llc | Power quality utility metering system having waveform capture |
| CN102981441A (en) * | 2012-11-13 | 2013-03-20 | 国网电力科学研究院 | Monitoring and protecting device and system and method of electrical load |
Non-Patent Citations (1)
| Title |
|---|
| 唐桂忠: "基于无线通信的电力负荷监控系统的设计", 《计算机测量与控制》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110866745A (en) * | 2019-11-14 | 2020-03-06 | 国网山西省电力公司忻州供电公司 | Household electricity payment management system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102063102B (en) | A kind of intelligent home appliance remote control system and control method | |
| CN201910648U (en) | Electric vehicle charging spot | |
| CN101826755B (en) | Intelligent power distribution network and power-consumption real-time monitoring and managing system | |
| CN102638102A (en) | Power supply system key information acquisition system and communication method based on Beidou satellite transmission and communication method thereof | |
| CN103944265B (en) | A kind of interactive intelligent adapted electric energy monitoring device and method | |
| CN107835252A (en) | A kind of intelligent interactive system based on intelligent electric meter data acquisition | |
| CN206921173U (en) | Off-line type intelligent access control system based on bluetooth | |
| CN101237156B (en) | Realization method for wall-hang energy-saving high-frequency switch DC power system | |
| CN201163437Y (en) | Automatization remote real-time monitoring system for client distribution network | |
| CN104505937A (en) | Interval power distribution monitoring management system | |
| CN105046791A (en) | Intelligent entrance guard system for controlling unlocking through mobile terminal | |
| CN109301934A (en) | A kind of power load monitoring system realized by wireless telecommunications | |
| CN202514073U (en) | Sensor network node device, aggregation node device thereof and electricity stealing prevention system | |
| CN103117598A (en) | Constant value remote setting maintenance-free system for transformer substation | |
| CN204089191U (en) | Power distribution network multiple target is collaborative from the major clique system that becomes | |
| CN109683571B (en) | Modeling method and device for hydropower station monitoring system | |
| CN101661058A (en) | IEC 61850 digital distance electric power data collecting method and apparatus thereof | |
| CN106647582A (en) | Energy control and management device, method and system | |
| CN206650503U (en) | Electric remote redundant monitoring system | |
| CN216927414U (en) | Power supply remote control system | |
| CN112332532A (en) | Power distribution room remote control system | |
| CN112383147A (en) | Intelligent air switch system based on Internet of things technology | |
| CN218416426U (en) | Network switch and power station monitoring facilities | |
| CN2745141Y (en) | Apparatus for implementing wireless three-remote of transformer tower by using mobile communication network | |
| CN209247929U (en) | A kind of master supervisory system of power distribution network line selection apparatus united analysis management |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190201 |
|
| RJ01 | Rejection of invention patent application after publication |