CN207408826U - Mining electric power monitoring system - Google Patents
Mining electric power monitoring system Download PDFInfo
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- CN207408826U CN207408826U CN201721647205.4U CN201721647205U CN207408826U CN 207408826 U CN207408826 U CN 207408826U CN 201721647205 U CN201721647205 U CN 201721647205U CN 207408826 U CN207408826 U CN 207408826U
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- interchanger
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Abstract
The utility model is related to a kind of mining electric power monitoring systems, belong to colliery power supply technique field.The utility model includes monitor supervision platform, interchanger I, monitoring communication sub-station, protector unit, interchanger II and built-in industrial control machine; interchanger II is the tie that interchanger I communicates with monitor supervision platform, and built-in industrial control machine is the tie that protector unit communicates with monitoring communication sub-station；The protector unit connect under built-in industrial control machine standalone poll monitoring communication sub-station enters Ethernet to obtained data storage, packing forwarding；The instruction of monitor supervision platform descends into built-in industrial control machine storage in the form of IP datagram, and be converted into RS485 serial data transmissions by built-in industrial control machine performs to protector unit.The utility model efficiently solves the bottleneck that low speed RS485 serial communications transmission occupies high speed Ethernet transmission bandwidth, and making to communicate between monitoring host computer and protector unit is almost not take up Ethernet bandwidth.
Description
Technical field
The utility model is related to a kind of mining electric power monitoring systems, belong to colliery power supply technique field.
Background technology
Mine, especially colliery, since accident is occurred frequently and forced outage rate is high, automated production and information system management
In need increase electric power monitoring system.Electric power monitoring system is not only the equipment that must be equipped, and can promote colliery electric power
Security, the reliability of system.In the prior art, the electric power monitoring system in mine mainly includes monitoring host computer, interchanger, prison
Control four part of communication sub-station and protector unit.But in existing communication sub-station, only set and turn Ethernet there are one serial ports
Interface does not possess storage, is packaged forwarding capability, and serial data is directly entered Ethernet transmission, a large amount of to occupy Ethernet bandwidth,
Make other monitoring systems and video signal transmission not smooth, electric power monitoring system in itself also can be because of contention Ethernet bandwidth for transmission not
Freely, cause power monitoring data transmission and other monitoring systems transmission influence each other cause transmission off and on, loss of data,
Phenomena such as blocking.
Utility model content
In view of the foregoing defects the prior art has, the utility model proposes a kind of new mining electric power monitoring system,
It efficiently solves low speed RS485 serial communications transmission and occupies high speed Ethernet conveyor by increasing built-in industrial control machine
Wide bottleneck, making to communicate between monitoring host computer and protector unit is almost not take up Ethernet bandwidth.
The utility model is realized using following technical solution：Mining electric power monitoring system described in the utility model,
Interchanger I, monitoring communication sub-station and protector unit including the monitor supervision platform resting on the ground and under mine,
In, monitor supervision platform and monitoring communication sub-station form Ethernet by intelligent acess interchanger I, and protector unit is total by RS485
Line access monitoring communication sub-station, further includes the interchanger II resting on the ground and the embedded industry control in monitoring communication sub-station
Machine, interchanger II are the tie that communicate with monitor supervision platform of interchanger I, and built-in industrial control machine is protector unit to communicate point with monitoring
Stand communication tie；The protector unit connect under built-in industrial control machine standalone poll monitoring communication sub-station, deposits obtained data
Storage is packaged forwarding into Ethernet；The instruction of monitor supervision platform descends into built-in industrial control machine storage in the form of IP datagram, by embedding
Enter formula industrial personal computer and be converted into RS485 serial data transmissions to protector unit execution.
Amount of communication data between protector unit and monitoring communication sub-station is small, and reliability and interference free performance requirement are high,
It is communicated using RS485 bus serials；It monitors and ethernet communication is used between communication sub-station and monitoring host computer.It is only to monitor communication sub-station
The protector unit that vertical wheel connects under asking enters Ethernet to obtained data storage, packing forwarding；The instruction of monitoring host computer is with IP
Form of datagrams descends into monitoring communication sub-station storage, and RS485 serial data transmissions are converted into protection by monitoring communication sub-station
Device unit performs.It is converted by the packing for monitoring communication sub-station, avoids low speed RS485 serial communication datas directly in Ethernet
Upper transmission efficiently solves the bottleneck that low speed RS485 serial communications transmission occupies high speed Ethernet transmission bandwidth, leads monitoring
It communicates between machine and protector unit and is almost not take up Ethernet bandwidth, avoid power monitoring data transmission and other monitoring systems
System transmission influence each other cause transmission off and on, loss of data, block phenomena such as.Built-in industrial control machine is through intrinsic safety translation interface
Poll is attempted by the protector unit on interface, and the data that each protector unit is uploaded are stored, are locally displayed, are packaged
(TCP/IP datagrams) uploads to monitoring host computer, guest machine through fiber optic Ethernet；The instruction (TCP/IP datagrams) of monitoring host computer
Monitoring communication sub-station built-in industrial control machine is transferred to through fiber optic Ethernet, RS485 serial datas is converted into and is transmitted through intrinsic safety interface
It is performed to protector unit.Power monitoring data is made to only take up seldom Ethernet bandwidth.
Further, the monitor supervision platform includes monitoring host computer and backup host, and monitoring host computer and backup host pass through light
Fibre forms mining LAN.
Under normal conditions, a monitoring host computer, a guest machine, a set of power control electric power version specialty are installed in ground monitoring room
Configuration software forms monitor supervision platform；Monitoring host computer, guest machine connect monitoring room core gigabit ethernet switch net by cable
Mouthful, it is communicated by Ethernet with ground, underground changed into switchhouse equipment.
Further, using Windows XP operating platforms, monitoring host computer uses for the monitoring host computer and backup host
Power control FCPower6.0 electric power version specialty configuration softwares；It monitors communication sub-station and uses Windows CE.net operating systems.
Monitor supervision platform, monitoring communication sub-station, protector unit can the easily local operation in equipment, looked into
It askes, control, adjust.Three-stage apparatus works independently, and the damage of higher level equipment and communication line does not influence the operation of infrastructure devices.It is main
Machine uses Windows XP operating platforms, and communication sub-station uses Windows CE.net operating systems, the operation system of different kernels
The computer virus for preventing to carry out automatic network unite from intrusion monitoring communication sub-station and its infrastructure devices, is effectively guaranteed underground power supply used
The safety of system.
Further, the interchanger I forms Ethernet topological structure at least two interchangers II, and interchanger I is distinguished
It is connected with monitoring host computer and backup host, interchanger II is connected at least two monitoring communication sub-stations.
Further, the information that the interchanger II stores is stored in an at least interchanger I by backup, works as interchanger
During II failure, monitor supervision platform is communicated by the interchanger I being connected with interchanger II.
Interchanger II is mainly responsible for carries out data exchange by other interchangers I and monitoring host computer, once break down by
Cause to accept and go wrong, therefore the data of interchanger II are backed up in realtime, avoid surprisingly causing prolonged failure.It is logical
An at least interchanger I is crossed to be backed up, it is complete from an at least interchanger I from reading corresponding data when recovering data
Into the function of interchanger II.
Further, the monitoring communication sub-station is the small-sized monitoring station of an autonomous working, by flameproof enclosure, is exchanged
Machine, built-in industrial control machine, intrinsic safety translation interface and uninterruptible power supply composition.It is by the monitoring communication sub-station of other companies, explosion-proof
The function of the multiple equipments such as interchanger, explosion-proof electrical source combines together, and small, function is strong, reduces external cabling, enhances peace
Full property and stability.
Further, on the one hand the monitoring communication sub-station connects underlying device by RS485 buses, on the other hand passes through
Fiberoptic delay connects top-level computer, as being monitored on well between computer and the various protector units in underground in information
Turn, store, treating stations；Complete data packings, communication Protocol Conversion, information are locally displayed, system local monitor, operate and adjust
Work.
It on monitoring communication sub-station, can easily operate, every protector unit of its lower mounting be carried out real-time
Data, setting valve, communication state, the inquiry for switching operating status and event；Protect fixed value adjusting and modification；Clock is edited, transported
Row debugging and protection test；It is remotely controlled switching on and off；The various operations such as communication protocol setting can also be monitored communication sub-station certainly
The IP address and network settings of body.
Further, the protector unit includes high quick-fried protector unit, feed protector unit, magnetic starter guarantor
Shield device unit, illumination sign protector unit, shifting become higher low-head protector unit and combination protector unit, pass through RS485
Bus is connected to monitoring communication sub-station, completes the protection to power equipment and circuit and circuit measuring, data acquisition, data transmission
And control performs work.
Further, the Ethernet is fiber optic communication looped network, between more monitoring communication sub-stations, monitoring communication point
It stands between communication interface, composition fiberoptic delay is connected with each other by optical cable, as downhole communication transmission platform, transmission is each
Kind parameter, data and control signal.
The beneficial effects of the utility model are：Using mining electric power monitoring system described in the utility model, pass through increasing
Add built-in industrial control machine, efficiently solve the bottleneck that low speed RS485 serial communications transmission occupies high speed Ethernet transmission bandwidth,
Make to communicate between monitoring host computer and protector unit and be almost not take up Ethernet bandwidth；It will be exchanged by increasing interchanger II
The data of machine II are backed up in realtime, and are avoided surprisingly causing prolonged failure, are improved system stability.
Description of the drawings
Fig. 1 is the structural principle block diagram of the utility model.
Specific embodiment
In order to which the utility model aim, technical solution is more clearly understood, with reference to embodiment, to the utility model
It is described in further detail.
Embodiment one：
As shown in Figure 1, mining electric power monitoring system described in the utility model, including the monitor supervision platform resting on the ground, with
And interchanger I, monitoring communication sub-station and protector unit under mine, wherein, monitor supervision platform and monitoring communication sub-station lead to
It crosses intelligent acess interchanger I and forms Ethernet, protector unit accesses monitoring communication sub-station by RS485 buses, further includes position
In the interchanger II on ground and the built-in industrial control machine in monitoring communication sub-station, interchanger II is interchanger I and monitoring
The tie of Platform communication, the tie that built-in industrial control machine communicates for protector unit with monitoring communication sub-station；Built-in industrial control machine
The protector unit connect under standalone poll monitoring communication sub-station enters Ethernet to obtained data storage, packing forwarding；Monitoring
The instruction of platform descends into built-in industrial control machine storage in the form of IP datagram, and it is serial to be converted into RS485 by built-in industrial control machine
Data transmission is performed to protector unit.
Amount of communication data between protector unit and monitoring communication sub-station is small, and reliability and interference free performance requirement are high,
It is communicated using RS485 bus serials；It monitors and ethernet communication is used between communication sub-station and monitoring host computer.It is only to monitor communication sub-station
The protector unit that vertical wheel connects under asking enters Ethernet to obtained data storage, packing forwarding；The instruction of monitoring host computer is with IP
Form of datagrams descends into monitoring communication sub-station storage, and RS485 serial data transmissions are converted into protection by monitoring communication sub-station
Device unit performs.It is converted by the packing for monitoring communication sub-station, avoids low speed RS485 serial communication datas directly in Ethernet
Upper transmission efficiently solves the bottleneck that low speed RS485 serial communications transmission occupies high speed Ethernet transmission bandwidth, leads monitoring
It communicates between machine and protector unit and is almost not take up Ethernet bandwidth, avoid power monitoring data transmission and other monitoring systems
System transmission influence each other cause transmission off and on, loss of data, block phenomena such as.Built-in industrial control machine is through intrinsic safety translation interface
Poll is attempted by the protector unit on interface, and the data that each protector unit is uploaded are stored, are locally displayed, are packaged
(TCP/IP datagrams) uploads to monitoring host computer, guest machine through fiber optic Ethernet；The instruction (TCP/IP datagrams) of monitoring host computer
Monitoring communication sub-station built-in industrial control machine is transferred to through fiber optic Ethernet, RS485 serial datas is converted into and is transmitted through intrinsic safety interface
It is performed to protector unit.Power monitoring data is made to only take up seldom Ethernet bandwidth.
The monitor supervision platform includes monitoring host computer and backup host, and monitoring host computer and backup host are made up of mining optical fiber
LAN.Under normal conditions, a monitoring host computer, a guest machine, a set of power control electric power version specialty are installed in ground monitoring room
Configuration software forms monitor supervision platform；Monitoring host computer, guest machine connect monitoring room core gigabit ethernet switch net by cable
Mouthful, it is communicated by Ethernet with ground, underground changed into switchhouse equipment.
Using Windows XP operating platforms, monitoring host computer uses power control for the monitoring host computer and backup host
FCPower6.0 electric power version specialty configuration softwares；It monitors communication sub-station and uses Windows CE.net operating systems.Monitor supervision platform,
Monitor communication sub-station, protector unit can the easily local operation in equipment, inquired about, controlled, adjusted.Three-level is set
Standby to work independently, the damage of higher level equipment and communication line does not influence the operation of infrastructure devices.Host is grasped using Windows XP
Make platform, communication sub-station uses Windows CE.net operating systems, and the operating system of different kernels makes the calculating for carrying out automatic network
Machine virus is unable to intrusion monitoring communication sub-station and its infrastructure devices, is effectively guaranteed the safety of underground power supply system.
The interchanger I and at least two interchangers II form Ethernet topological structures, interchanger I respectively with monitoring host computer
It is connected with backup host, interchanger II is connected at least two monitoring communication sub-stations.The information that the interchanger II stores passes through
Backup is stored in an at least interchanger I, and when interchanger II breaks down, monitor supervision platform passes through the friendship that is connected with interchanger II
It changes planes and I communicates.Interchanger II is mainly responsible for carries out data exchange by other interchangers I and monitoring host computer, once occur
Failure, which will cause to accept, to go wrong, therefore the data of interchanger II are backed up in realtime, and avoids unexpected cause for a long time
Failure.It is backed up by an at least interchanger I, it is corresponding from an at least interchanger I from reading when recovering data
Data complete the function of interchanger II.
The monitoring communication sub-station is the small-sized monitoring station of an autonomous working, by flameproof enclosure, interchanger, embedded work
Control machine, intrinsic safety translation interface and uninterruptible power supply composition.It is by the monitoring communication sub-station of other companies, explosion-proof interchanger, explosion-proof
The function of the multiple equipments such as power supply combines together, and small, function is strong, reduces external cabling, enhances security and stabilization
Property.
On the one hand the monitoring communication sub-station connects underlying device by RS485 buses, on the other hand pass through optical fiber ether
Looped network connects top-level computer, as monitored on well the transfer of information between computer and the various protector units in underground, storage,
Treating stations；Complete data packings, communication Protocol Conversion, information are locally displayed, system local monitor, operate and adjust work.
It monitors on communication sub-station, can easily operate, real time data is carried out to every protector unit of its lower mounting, is adjusted
Value, communication state, the inquiry for switching operating status and event；Protect fixed value adjusting and modification；Clock edits, runs debugging and protect
Shield experiment；It is remotely controlled switching on and off；The various operations such as communication protocol setting can also be monitored the IP address of communication sub-station itself
And network settings.
The protector unit include high quick-fried protector unit, feed protector unit, magnetic starter protector unit,
Illumination sign protector unit, shifting become higher low-head protector unit and combination protector unit, are connected to by RS485 buses
Communication sub-station is monitored, the protection to power equipment and circuit is completed and circuit measuring, data acquisition, data transmission and control performs
Work.
The Ethernet is fiber optic communication looped network, between more monitoring communication sub-stations, monitoring communication sub-station and communication
Between interface, composition fiberoptic delay is connected with each other by optical cable, as downhole communication transmission platform, transmission various parameters,
Data and control signal.
Mining electric power monitoring system described in the utility model, by increasing built-in industrial control machine, efficiently solves
Low speed RS485 serial communications transmission occupies the bottleneck of high speed Ethernet transmission bandwidth, makes between monitoring host computer and protector unit
Communication is almost not take up Ethernet bandwidth；The data of interchanger II are backed up in realtime, avoided by increasing interchanger II by it
Prolonged failure is surprisingly caused, improves system stability.
Embodiment two：
Below by taking certain specific coal industry electric power system as an example, the utility model is further expalined.
Certain coal industry electric power system includes ground 35KV substations, underground central substation, northern wing concentration electric substation, the northern wing one
The compositions such as change, the northern change of the wing two.
Ground 35KV substations are completed monitoring system, can pass through monitoring host computer backstage access electric power monitoring system.Well
Lower central substation has the mining general high voltage inlet-outlet line cabinet in 23 faces；The northern wing concentrates all 13 high-explosive switchs of power transformation；The northern wing one becomes
There are 13 high-explosive switchs；The northern change of the wing two has 12 high-explosive switchs；Nan Yi concentrates all 17 high-explosive switchs of power transformation, 19 low pressure feedbacks
Electric switch, concentrated in Nan Yi has 4 low-voltage feeder switches for needing to measure power consumption respectively in the range of electric substation periphery 1000m；
East four or three, which becomes, 13 high-explosive switchs, 17 low-voltage feeder switches, and become in east four or three in the range of the 1000m of periphery has 4 need respectively
Measure the low-voltage feeder switch of power consumption；East 41, which becomes, 15 high-explosive switchs, 11 low-voltage feeder switches, becomes in east 41
There are 7 low-voltage feeder switches for needing to measure power consumption in the range of peripheral 1000m respectively；Totally 1 ground transformer substation, 6 undergrounds
Electric substation, 29 6KV are mining general high voltage switchgear, 71 high-explosive switchs, 103 low-voltage feeder switches, mining general low pressure
12 low-voltage circuits of switchgear.
The underground humidity of certain coal industry is larger, and tunnel situation is complicated, and power cable connector is more, and short trouble easily occurs.Certain
Coal industry is completed ground, underground ethernet ring network, and on ground, 35KV substations, underground central substation, Nan Yi concentrate electric substation, north
The wing concentrates electric substation, the northern wing one to become, four or three change installation interchanger II of east, built-in industrial control machine is installed in underground, to ground 35KV
601#, 602# are always opened in substation 6KV sides 2 and separated 6105#, 6210#, 6101#, 6204# of 4 circuits of going into the well are changed
It makes, replaces protector unit, and carry out anti-overstep tripping locking.Protector unit mainly includes high quick-fried protector unit, feed
Protector unit, magnetic starter protector unit, illumination sign protector unit, shifting become higher low-head protector unit and group
Close protector unit.Electric power monitoring system data transmission is carried out by ground, underground ethernet ring network, passes through light between each changed into switchhouse
Cable transfers anti-overstep tripping block signal.
Mining electric power monitoring system described in the utility model can also realize following advantageous effect：(1) security：Colliery
Every line voltage distribution of electric system, electric current, residual voltage, zero-sequence current real time data, historical data, operation curve are shown in prison
It controls on host screen, power scheduling on duty is made to understand by the comparison of real-time parameter, curve and safe operation history parameters, curve
The safe condition of circuit operation, assesses potential faults, and mining electric power monitoring system becomes artificial failure on duty and post processing thing occurs
Therefore remove a hidden danger and automatic protection before occurring for failure, improve the security of colliery electric system.(2) reliability:Monitoring master
In machine display system when every device current, the real-time parameter of voltage, history parameters, switch history run curve, fault trip
Between, fault trip reason, fault trip when current value and fault trip before and after electric current, voltage, zero-sequence current, residual voltage
Waveform can be easy to analyze specific faulty equipment and failure cause, once solve, make failure according to these data and curve
No longer repeatedly, the reliability of electric system is promoted.(3) use is more reasonable：Mining electric power monitoring system shows, records colliery electric power
System loading situation, operating condition, line fault conditions can be preferably according to production needs and line convenient for routine dispatching personnel
Road load instruction carries out sharing of load, power scheduling, production commander and urgent emergency case processing.(4) maintain easily：According to electricity
The record of power monitoring system, display carry out the electrical equipment and circuit that show hidden danger (reduced performance) in the gap of production
Test is safeguarded, can be removed a hidden danger, be fixed a breakdown.If monitoring the magnetic starter of control motor, can ensure substantially
Do not burn motor.(5) management is facilitated：It has been shown that, the working time (start/stop time of switch) of the record circuit of underground every, load are big
Small, power consumption, and report is generated, facilitate and examine, manage in ore deposit.(6) it is energy-saving：Mining electric power monitoring system shows, records
The electric current of circuit, voltage, active power, reactive power, power factor are electric circuit in well sharing of load, track remodelling, idle benefit
It repays, energy-saving offer data foundation.(7) cut payroll to improve efficiency：Mining electric power monitoring system straighforward operation carry out circuit stop/power transmission,
Remote regulating is concentrated to adjust electrical equipment definite value number, makes operation, adjust more in time, more accurately, avoid maloperation and adjust mistake.
The above is only the preferred embodiment of the present invention and oneself, not using the utility model as limitation, it is all this
Impartial modifications, equivalent substitutions and improvements made within the spirit and principle of utility model etc., should be included in the utility model
Patent covering scope in.
Claims (9)
1. a kind of mining electric power monitoring system, interchanger I including the monitor supervision platform resting on the ground and under mine,
Monitor communication sub-station and protector unit, wherein, monitor supervision platform and monitoring communication sub-station by intelligent acess interchanger I form with
Too net, protector unit access monitoring communication sub-station by RS485 buses, which is characterized in that further include the friendship resting on the ground
It changes planes II and the built-in industrial control machine in monitoring communication sub-station, interchanger II is the knob that communicates with monitor supervision platform of interchanger I
Band, the tie that built-in industrial control machine communicates for protector unit with monitoring communication sub-station；Built-in industrial control machine standalone poll monitors
The protector unit connect under communication sub-station enters Ethernet to obtained data storage, packing forwarding；The instruction of monitor supervision platform with
IP datagram form descends into built-in industrial control machine storage, and RS485 serial data transmissions are converted into guarantor by built-in industrial control machine
Device unit is protected to perform.
2. mining electric power monitoring system according to claim 1, which is characterized in that the monitor supervision platform includes monitoring host computer
And backup host, monitoring host computer and backup host form mining LAN by optical fiber.
3. mining electric power monitoring system according to claim 2, which is characterized in that the monitoring host computer and backup host are equal
Using Windows XP operating platforms, monitoring host computer uses power control FCPower6.0 electric power version specialty configuration softwares；Monitoring communication
Substation uses Windows CE.net operating systems.
4. mining electric power monitoring system according to claim 2, which is characterized in that the interchanger I and at least two friendships
It changes planes II composition Ethernet topological structure, interchanger I is connected respectively with monitoring host computer and backup host, interchanger II and at least two
Platform monitoring communication sub-station is connected.
5. the mining electric power monitoring system according to claim 1 or 4, which is characterized in that the letter that the interchanger II stores
Breath by backup is stored in an at least interchanger I, when interchanger II breaks down, monitor supervision platform by with II phase of interchanger
Interchanger I even communicates.
6. mining electric power monitoring system according to claim 1, which is characterized in that the monitoring communication sub-station is an independence for Taiwan
The small-sized monitoring station of vertical work, by flameproof enclosure, interchanger, built-in industrial control machine, intrinsic safety translation interface and uninterruptible power supply group
Into.
7. the mining electric power monitoring system according to claim 1 or 6, which is characterized in that monitoring one side of communication sub-station
Face connects underlying device by RS485 buses, on the other hand top-level computer is connected by fiberoptic delay, as being supervised on well
Control the transfer, storage, treating stations of information between computer and the various protector units in underground；Complete data packing, communication protocol
Conversion, information are locally displayed, system local monitor, operate and adjust work.
8. mining electric power monitoring system according to claim 1, which is characterized in that the protector unit includes high quick-fried guarantor
Shield device unit, feed protector unit, magnetic starter protector unit, illumination sign protector unit, shifting become higher low-head
Protector unit and combination protector unit, are connected to monitoring communication sub-station by RS485 buses, complete to power equipment and line
The protection on road and circuit measuring, data acquisition, data transmission and control perform work.
9. mining electric power monitoring system according to claim 1, which is characterized in that the Ethernet is fiber optic communication ring
Net between more monitoring communication sub-stations, is monitored between communication sub-station and communication interface, and composition light is connected with each other by optical cable
Fine ethernet ring network, as downhole communication transmission platform, transmission various parameters, data and control signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721647205.4U CN207408826U (en) | 2017-11-30 | 2017-11-30 | Mining electric power monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721647205.4U CN207408826U (en) | 2017-11-30 | 2017-11-30 | Mining electric power monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207408826U true CN207408826U (en) | 2018-05-25 |
Family
ID=62317265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721647205.4U Expired - Fee Related CN207408826U (en) | 2017-11-30 | 2017-11-30 | Mining electric power monitoring system |
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| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109120066A (en) * | 2018-08-24 | 2019-01-01 | 淮北矿业股份有限公司 | A kind of coal mine electric power monitoring system transmission device |
| CN111464348A (en) * | 2020-03-30 | 2020-07-28 | 中国电子科技集团公司第五十四研究所 | Hierarchical multidimensional system monitoring method |
| CN111540178A (en) * | 2020-04-22 | 2020-08-14 | 南京积能电力科技有限公司 | Ubiquitous power-based Internet of things communication method |
-
2017
- 2017-11-30 CN CN201721647205.4U patent/CN207408826U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109120066A (en) * | 2018-08-24 | 2019-01-01 | 淮北矿业股份有限公司 | A kind of coal mine electric power monitoring system transmission device |
| CN111464348A (en) * | 2020-03-30 | 2020-07-28 | 中国电子科技集团公司第五十四研究所 | Hierarchical multidimensional system monitoring method |
| CN111540178A (en) * | 2020-04-22 | 2020-08-14 | 南京积能电力科技有限公司 | Ubiquitous power-based Internet of things communication method |
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