CN108233538A - Transmission line wire real-time monitoring system for state - Google Patents
Transmission line wire real-time monitoring system for state Download PDFInfo
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- CN108233538A CN108233538A CN201810023678.XA CN201810023678A CN108233538A CN 108233538 A CN108233538 A CN 108233538A CN 201810023678 A CN201810023678 A CN 201810023678A CN 108233538 A CN108233538 A CN 108233538A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 65
- 238000012544 monitoring process Methods 0.000 title claims abstract description 40
- 238000012806 monitoring device Methods 0.000 claims abstract description 10
- 241000854291 Dianthus carthusianorum Species 0.000 claims description 57
- 230000001133 acceleration Effects 0.000 claims description 7
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 239000004020 conductor Substances 0.000 claims description 3
- 230000014509 gene expression Effects 0.000 claims description 2
- 238000012216 screening Methods 0.000 claims description 2
- 210000003516 pericardium Anatomy 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000008447 perception Effects 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 description 5
- 238000004364 calculation method Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
-
- H02J13/0079—
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- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The present invention provides transmission line wire real-time monitoring system for state, including conducting wire monitoring device, base station equipment and conducting wire monitoring center；The conducting wire monitoring device includes multiple sensor nodes, and sensor node is monitored transmission line wire perception, and the transmission line wire state sensing data of acquisition is sent to base station equipment；The base station equipment converges the transmission line wire state sensing data that each sensor node is sent, and conducting wire monitoring center is forwarded to after being handled；Conducting wire monitoring center is used to that the transmission line wire state sensing data that base station equipment is sent to be analyzed and processed and shown, and is alarmed in transmission line wire state sensing data exception.The present invention realizes the wireless real-time monitoring of transmission line wire state using wireless sensor network technology.
Description
Technical field
The present invention relates to power transmission and transformation equipment state on-line monitoring technique fields, and in particular to transmission line wire state is real-time
Monitoring system.
Background technology
As industrialization, Development of China's Urbanization are constantly accelerated, electricity needs sustainable growth, a strong, reliable modernization
Bulk power grid optimizes energy source configuration, has irreplaceable role in a wider context for ensureing national energy security.Build tool
Information-based, digitlization, automation, interactive feature strong intelligent grid be the guarantee of safe, reliable, efficient transmission of electricity, be
The direction of power science development, is also even more important to the monitoring of power grid.Transmission line of electricity as power Transmission tie has dispersion
Property big, distance, the features such as being difficult to make an inspection tour and safeguarding, therefore a urgent cut is become to the long-range monitoring of transmission line wire
Make.
Invention content
In view of the above-mentioned problems, the present invention provides transmission line wire real-time monitoring system for state.
The purpose of the present invention is realized using following technical scheme：
Transmission line wire real-time monitoring system for state is provided, is supervised including conducting wire monitoring device, base station equipment and conducting wire
Measured center；The conducting wire monitoring device includes multiple sensor nodes, and sensor node is monitored transmission line wire sense
Know, and the transmission line wire state sensing data of acquisition is sent to base station equipment；The base station equipment converges each sensor
The transmission line wire state sensing data that node is sent, is forwarded to conducting wire monitoring center after being handled；Conducting wire monitoring center
Transmission line wire state sensing data for being sent to base station equipment is analyzed and processed and is shown, and in power line conductive
It alarms during linear state sensing data exception.
Preferably, the transmission line wire state sensing data include conducting wire monitoring point at temperature, displacement acceleration
And/or angle information.
Preferably, the conducting wire monitoring center includes data processor and display, and the data processor is defeated by what is received
Electric line Lead status sensing data is compared with the secure threshold of corresponding setting, export comparison result, and by display into
Row comparison result is shown.
Beneficial effects of the present invention are：Using wireless sensor network in transmission line wire status monitoring, realize
To the comprehensive of transmission line wire state, many reference amounts monitoring, the precision of monitoring is substantially increased.
Description of the drawings
Using attached drawing, the invention will be further described, but the embodiment in attached drawing does not form any limit to the present invention
System, for those of ordinary skill in the art, without creative efforts, can also obtain according to the following drawings
Other attached drawings.
The structural schematic block diagram of Fig. 1 one embodiment of the invention transmission line wire real-time monitoring system for state；
Fig. 2 is the block diagram representation of the conducting wire monitoring center of one embodiment of the invention.
Reference numeral：
Conducting wire monitoring device 1, base station equipment 2, conducting wire monitoring center 3, alarm 4, data processor 10, display 20.
Specific embodiment
The invention will be further described with the following Examples.
Referring to Fig. 1, transmission line wire real-time monitoring system for state provided in this embodiment, including conducting wire monitoring device 1,
Base station equipment 2 and conducting wire monitoring center 3.
Conducting wire monitoring device 1 includes multiple sensor nodes, and sensor node is monitored transmission line wire perception,
And the transmission line wire state sensing data of acquisition is sent to base station equipment 2.
Base station equipment 2 converges the transmission line wire state sensing data that each sensor node is sent, and turns after being handled
It is sent to conducting wire monitoring center 3.
Conducting wire monitoring center 3 is used to carry out at analysis the transmission line wire state sensing data that base station equipment 2 is sent
Reason and display, and alarm in transmission line wire state sensing data exception.
Wherein, the transmission line wire state sensing data include conducting wire monitoring point at temperature, displacement acceleration and/
Or angle information.
Wherein, at least one following sensors built in sensor node：
3-axis acceleration sensor, for acquiring the displacement acceleration at conducting wire monitoring point；
Angular transducer, for acquiring the conducting wire angle at conducting wire monitoring point；
Temperature sensor, for acquiring the temperature at conducting wire monitoring point.
In one embodiment, as shown in Fig. 2, conducting wire monitoring center 3 includes data processor 10 and display 20, the number
The transmission line wire state sensing data received with the secure threshold of corresponding setting is compared according to processor 10, exports ratio
Compared with as a result, and being compared result by display 20 and showing.Display 20 is additionally operable to real-time display transmission line wire state biography
Data are felt, so as to the status information for monitoring personnel's real time inspection transmission line wire.
Optionally, system further includes the alarm 4 being connect with data processor 10, when transmission line wire state senses number
During according to beyond the secure threshold for corresponding to setting, the data processor 10 drives alarm 4 to alarm.
Wherein, the alarm 30 includes buzzer siren or audible-visual annunciator, and the present embodiment is not construed as limiting this.
The above embodiment of the present invention, using conducting wire monitoring device, is realized to transmission of electricity in transmission line wire status monitoring
The comprehensive of line conductor state, many reference amounts monitoring substantially increase the precision of monitoring.
In one embodiment, multiple sensor nodes are randomly dispersed in monitoring area, are made up of Ad hoc mode
Wireless sensor network.In wireless sensor network Startup time, base station equipment 2 carries out cluster division to sensor node, determines
As the sensor node of cluster head, and remaining sensor node is as bunch member node；Bunch member node is transmitted electricity for acquiring
Line conductor state sensing data and the cluster head that transmission line wire state sensing data is sent to affiliated cluster；Cluster head is used to receive
Collect the transmission line wire state sensing data that bunch member node is sent, be additionally operable to sense the transmission line wire state of collection
Data are forwarded to base station equipment 2 by way of multihop routing communication between cluster.
In one embodiment, base station equipment 2 carries out cluster division to sensor node, specifically includes：
(1) base station equipment 2 determines N number of alternative cluster head from multiple sensor nodes；
(2) alternative cluster head screening is carried out, specifically, for alternative cluster head α, β of any two, if meeting lower column distance item
The wherein smaller alternative cluster head of dump energy is then reverted to ordinary node by part：
In formula, d (α, β) is the distance between alternative cluster head α and β, and d (α, sink) is alternative cluster head α to base station equipment 2
Distance, d (β, sink) are alternative cluster head β to the distance of base station equipment 2, dmaxFor the sensor node farthest apart from base station equipment 2
To the distance of base station equipment 2, dminFor the distance of the sensor node nearest apart from base station equipment 2 to base station equipment 2, b is setting
Regulation and control coefficient, RmaxFor the cluster radius maximum occurrences of setting, min [] expressions are minimized function；
(3) using be still alternative cluster head sensor node as cluster head, and according to existing cluster head be finally completed cluster draw
Point, remaining sensor node k is belonged to it apart from shortest cluster head, becomes bunch member node.
Sub-clustering is carried out based on particle region optimization algorithm on multiple populations, it is likely that the intensive situation of cluster head, this implementation can be generated
Example screens alternative cluster head by distance condition, effectively prevents the occurrence of cluster head is overstocked so that wireless sensor
The sub-clustering topology of network is more reasonable, and the more alternative cluster head of selection dump energy serves as final cluster head always, this is more
Be conducive to the equilibrium of network energy, so as to effectively extend the work of the acquisition of transmission line wire state sensing data and transmission
Period improves the stability of system operation.
In one embodiment, base station equipment 2 determines N number of alternative cluster head from multiple sensor nodes, specifically includes：
(1) monitoring area is randomly divided into N number of subregion；
(2) to each sensor node, calculating it becomes the preferred value of cluster head：
In formula, PiRepresent that sensor node i becomes the preferred value of cluster head, RiFor the communication distance of sensor node i, d (i,
J) distance between sensor node i and its j-th neighbor node being located in same subregion, niFor sensor node i's
Neighbor node number in same subregion, the wherein neighbor node of sensor node i are positioned at the logical of sensor node i
Sensor node in the range of letter；
D (i, sink) is sensor node i to the distance of base station equipment 2, EiCurrent residual energy for sensor node i
Amount, EjFor j-th of neighbor node current remaining of sensor node i, a1For distance weighting coefficient, a2For energy weight system
Number；
(3) for every sub-regions, by the sensor node of preferred value maximum alternately cluster head.
Monitoring area is randomly divided into multiple subregions by the present embodiment, and alternative cluster head is selected from all subregion, from
And the number of cluster head can be controlled, the corresponding scale for controlling cluster.When designing preferred value calculation formula, it is contemplated that node spacing,
To the distance and capacity factor of base station equipment 2, be conducive to improve the compactedness of sub-clustering, make the region nearer apart from base station equipment 2
More cluster heads are generated, and the probability that the sensor node for causing dump energy larger has bigger becomes cluster head, equalizing section
Point energy consumption extends the work period of acquisition transmission line wire state sensing data.
In one embodiment, after base station equipment 2 carries out cluster division to sensor node, sub-clustering is no longer carried out.It is periodically right
Cluster head is detected, if the current remaining of cluster head is less than bunch member node average energy value in its cluster, selects maximum weight
Bunch member node as new cluster head.
Wherein, the calculation formula of weights is：
In formula, QxRepresent the weights of bunch member node x, ExFor the current remaining of bunch member node x,For cluster member
The bunch member node average energy value of cluster, R where node xxFor the communication distance of bunch member node x, d (x, y) is bunch member node x
To the distance of its cluster head y；λ1、λ2For weight coefficient.
The present embodiment continuously serves as mechanism using cluster head, it is possible to reduce chooses the energy that cluster head is consumed in turn.
Usually just cluster head is replaced when the current remaining of cluster head is less than minimum energy value in the relevant technologies, so
And there is no the energy variation situations for considering its cluster inner sensor node for this substitute mode.The present embodiment is in the current of cluster head
Dump energy carries out cluster head replacement when being less than bunch member node average energy value in its cluster so that the replacement of cluster head has more flexibility.
In addition, according to the calculation formula of weights it is found that energy is higher, nearer apart from cluster head bunch member node has bigger
Weights, the present embodiment carries out cluster head more when the current remaining of cluster head is less than bunch member node average energy value in its cluster
It changes, selects the bunch member node of maximum weight to replace former cluster head, be conducive to equalising network energy, it is ensured that newly appointed cluster head can be complete
Being collected into transmission line wire state sensing data for task, it is ensured that transmission line wire state sensing data can be by fast in real time
It is transferred to conducting wire monitoring center 3 fastly to be handled, so as to which monitoring personnel can in time take accordingly in advance according to handling result
Anti- measure ensures transmission line safety work.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention rather than the present invention is protected
The limitation of range is protected, although being explained in detail with reference to preferred embodiment to the present invention, those of ordinary skill in the art should
Work as understanding, technical scheme of the present invention can be modified or replaced equivalently, without departing from the reality of technical solution of the present invention
Matter and range.
Claims (7)
1. transmission line wire real-time monitoring system for state, it is characterized in that, it is supervised including conducting wire monitoring device, base station equipment and conducting wire
Measured center；The conducting wire monitoring device includes multiple sensor nodes, and sensor node is monitored transmission line wire sense
Know, and the transmission line wire state sensing data of acquisition is sent to base station equipment；The base station equipment converges each sensor
The transmission line wire state sensing data that node is sent, is forwarded to conducting wire monitoring center after being handled；Conducting wire monitoring center
Transmission line wire state sensing data for being sent to base station equipment is analyzed and processed and is shown, and in power line conductive
It alarms during linear state sensing data exception.
2. transmission line wire real-time monitoring system for state according to claim 1, it is characterized in that, the power line conductive
Linear state sensing data includes temperature, displacement acceleration and/or the angle information at conducting wire monitoring point.
3. transmission line wire real-time monitoring system for state according to claim 1, it is characterized in that, in the conducting wire monitoring
Pericardium includes data processor and display, which sets the transmission line wire state sensing data received with corresponding
Fixed secure threshold is compared, and exports comparison result, and be compared result by display and show.
4. transmission line wire real-time monitoring system for state according to claim 3, it is characterized in that, further include at data
The alarm of device connection is managed, when secure threshold of the transmission line wire state sensing data beyond corresponding setting, the data
Processor driving alarm is alarmed.
5. according to claim 1-4 any one of them transmission line wire real-time monitoring system for state, it is characterized in that, sensor
At least one following sensors built in node：
3-axis acceleration sensor, for acquiring the displacement acceleration at conducting wire monitoring point；
Angular transducer, for acquiring the conducting wire angle at conducting wire monitoring point；
Temperature sensor, for acquiring the temperature at conducting wire monitoring point.
6. according to claim 1-4 any one of them transmission line wire real-time monitoring system for state, it is characterized in that, wireless
Sensor network Startup time, base station equipment carry out cluster division to sensor node, are determined as the sensor node of cluster head, and
Remaining sensor node is as bunch member node；Bunch member node is used to acquire transmission line wire state sensing data and incite somebody to action
Transmission line wire state sensing data is sent to the cluster head of affiliated cluster；Cluster head is used to collect the power transmission line of bunch member node transmission
Line conductor state sensing data is additionally operable to communicate the transmission line wire state sensing data of collection by multihop routing between cluster
Mode be forwarded to base station equipment.
7. transmission line wire real-time monitoring system for state according to claim 6, it is characterized in that, base station equipment is to sensing
Device node carries out cluster division, specifically includes：
(1) base station equipment determines N number of alternative cluster head from multiple sensor nodes；
(2) alternative cluster head screening is carried out, specifically, for alternative cluster head α, β of any two, if meeting following distance condition,
The wherein smaller alternative cluster head of dump energy is reverted into ordinary node：
In formula, β (α, β) is the distance between alternative cluster head α and β, and d (α, sink) is distances of the alternative cluster head α to base station equipment,
D (β, sink) is alternative cluster head β to the distance of base station equipment, dmaxFor the sensor node farthest apart from base station equipment to base station
The distance of equipment, dminFor the distance of the sensor node nearest apart from base station equipment to base station equipment, b is the regulation and control system of setting
Number, RmaxFor the cluster radius maximum occurrences of setting, min [] expressions are minimized function；
(3) using be still alternative cluster head sensor node as cluster head, and be finally completed according to existing cluster head the division of cluster,
Remaining sensor node k is belonged to it apart from shortest cluster head, becomes bunch member node.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810023678.XA CN108233538A (en) | 2018-01-10 | 2018-01-10 | Transmission line wire real-time monitoring system for state |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810023678.XA CN108233538A (en) | 2018-01-10 | 2018-01-10 | Transmission line wire real-time monitoring system for state |
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| CN108233538A true CN108233538A (en) | 2018-06-29 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108769946A (en) * | 2018-07-03 | 2018-11-06 | 深圳众厉电力科技有限公司 | Substation equipment based on technology of Internet of things monitors system |
| CN108900995A (en) * | 2018-07-03 | 2018-11-27 | 深圳明创自控技术有限公司 | Power equipment based on technology of Internet of things monitors system |
| CN109212153A (en) * | 2018-10-16 | 2019-01-15 | 深圳美特优科技有限公司 | A kind of water quality monitoring system based on wireless sensor network |
| CN109406940A (en) * | 2018-10-16 | 2019-03-01 | 江苏佳源科技有限公司 | A kind of distributed feed line automatization system for power distribution network monitoring |
| CN109488377A (en) * | 2018-10-16 | 2019-03-19 | 深圳众宝城贸易有限公司 | A kind of coal mine down-hole fire monitoring |
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| CN201654168U (en) * | 2010-03-26 | 2010-11-24 | 西安工程大学 | Transmission line wire state online monitoring device applying wireless sensor network |
| CN107317706A (en) * | 2017-06-24 | 2017-11-03 | 深圳市创艺工业技术有限公司 | A kind of power transmission line intelligent monitoring system |
| CN107316450A (en) * | 2017-06-24 | 2017-11-03 | 深圳森阳环保材料科技有限公司 | A kind of transmission line of electricity monitoring system based on wireless sensor network |
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2018
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201654168U (en) * | 2010-03-26 | 2010-11-24 | 西安工程大学 | Transmission line wire state online monitoring device applying wireless sensor network |
| CN107317706A (en) * | 2017-06-24 | 2017-11-03 | 深圳市创艺工业技术有限公司 | A kind of power transmission line intelligent monitoring system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108769946A (en) * | 2018-07-03 | 2018-11-06 | 深圳众厉电力科技有限公司 | Substation equipment based on technology of Internet of things monitors system |
| CN108900995A (en) * | 2018-07-03 | 2018-11-27 | 深圳明创自控技术有限公司 | Power equipment based on technology of Internet of things monitors system |
| CN109212153A (en) * | 2018-10-16 | 2019-01-15 | 深圳美特优科技有限公司 | A kind of water quality monitoring system based on wireless sensor network |
| CN109406940A (en) * | 2018-10-16 | 2019-03-01 | 江苏佳源科技有限公司 | A kind of distributed feed line automatization system for power distribution network monitoring |
| CN109488377A (en) * | 2018-10-16 | 2019-03-19 | 深圳众宝城贸易有限公司 | A kind of coal mine down-hole fire monitoring |
| CN109406940B (en) * | 2018-10-16 | 2019-06-28 | 深圳供电局有限公司 | A kind of distributed feed line automatization system for power distribution network monitoring |
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