CN107316450A - A kind of transmission line of electricity monitoring system based on wireless sensor network - Google Patents
A kind of transmission line of electricity monitoring system based on wireless sensor network Download PDFInfo
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- CN107316450A CN107316450A CN201710489342.8A CN201710489342A CN107316450A CN 107316450 A CN107316450 A CN 107316450A CN 201710489342 A CN201710489342 A CN 201710489342A CN 107316450 A CN107316450 A CN 107316450A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 140
- 230000005611 electricity Effects 0.000 title claims abstract description 59
- 238000004891 communication Methods 0.000 claims abstract description 9
- 241000854291 Dianthus carthusianorum Species 0.000 claims description 25
- 235000009808 lpulo Nutrition 0.000 claims description 4
- 238000005070 sampling Methods 0.000 claims description 4
- 238000011156 evaluation Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 description 3
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- 235000003140 Panax quinquefolius Nutrition 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 235000005035 ginseng Nutrition 0.000 description 2
- 235000008434 ginseng Nutrition 0.000 description 2
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Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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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
- H02J13/0006—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 for single frequency AC networks
- H02J13/0013—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 for single frequency AC networks characterised by transmission structure between the control or monitoring unit and the controlled or monitored unit
- H02J13/0017—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 for single frequency AC networks characterised by transmission structure between the control or monitoring unit and the controlled or monitored unit with direct transmission between the control or monitoring unit and the controlled or monitored unit
- H02J13/0075—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 for single frequency AC networks characterised by transmission structure between the control or monitoring unit and the controlled or monitored unit with direct transmission between the control or monitoring unit and the controlled or monitored unit using radio means
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
- H04L67/025—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
-
- 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 invention provides a kind of transmission line of electricity monitoring system based on wireless sensor network, including transmission line parameter signal dispatcher module, transmission line of electricity Surveillance center and intelligent terminal, the transmission line parameter signal dispatcher module is based on wireless sensor network and gathers transmission line parameter information, and the transmission line parameter information collected is sent to the transmission line of electricity Surveillance center, the transmission line of electricity Surveillance center is used to receive, storage, show transmission line parameter information, and be compared transmission line parameter information and normality threshold, if more than normality threshold, then output alarm signal；Described intelligent terminal is connected by communication network with transmission line of electricity Surveillance center, for the transmission line parameter information in real time access transmission line of electricity Surveillance center.The present invention realizes transmission line of electricity monitoring using wireless sensor network technology, and is alarmed in transmission line parameter Information abnormity, is easy to related personnel to carry out remote monitoring.
Description
Technical field
The present invention relates to transmission line of electricity monitoring technical field, and in particular to a kind of power transmission line based on wireless sensor network
Road 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, with irreplaceable effect in a wider context for ensureing national energy security.Build tool
The guarantee for thering is information-based, digitlization, automation, the strong intelligent grid of interactive feature to be safe, reliable, efficient transmission of electricity, be
The direction of power science development, the monitoring to power network is also even more important.Have as the transmission line of electricity of power Transmission tie scattered
Property big, distance, the features such as be difficult to make an inspection tour and safeguard, therefore transmission line of electricity body and surrounding enviroment and meteorologic parameter are carried out
Long-range monitoring turns into a urgent job.
The content of the invention
In view of the above-mentioned problems, the present invention provides a kind of transmission line of electricity monitoring system based on wireless sensor network.
The purpose of the present invention gathers following technical scheme to realize：
Received there is provided a kind of transmission line of electricity monitoring system based on wireless sensor network, including transmission line parameter information
Module, transmission line of electricity Surveillance center and intelligent terminal are sent out, the transmission line parameter signal dispatcher module is based on wireless senser
Network gathers transmission line parameter information, and the transmission line parameter information collected is sent in the transmission line of electricity monitoring
The heart, the transmission line of electricity Surveillance center is used to receive, store, show transmission line parameter information, and transmission line parameter is believed
Breath is compared with normality threshold, if more than normality threshold, output alarm signal；Described intelligent terminal passes through communication network
Surveillance center is connected with transmission line of electricity, for the transmission line parameter information in real time access transmission line of electricity Surveillance center.
Beneficial effects of the present invention are：Transmission line of electricity monitoring is realized using wireless sensor network technology, and in transmission of electricity
Alarmed during line parameter circuit value Information abnormity, be easy to related personnel to carry out remote monitoring.
Brief description of the drawings
Using accompanying drawing, the invention will be further described, but the embodiment in accompanying drawing does not constitute any limit to the present invention
System, for one of ordinary skill in the art, on the premise of not paying creative work, can also be obtained according to the following drawings
Other accompanying drawings.
The structured flowchart of Fig. 1 present invention；
Fig. 2 is the connection block diagram of transmission line of electricity Surveillance center of the present invention.
Reference：
Transmission line parameter signal dispatcher module 1, transmission line of electricity Surveillance center 2, intelligent terminal 3, information receiving module 10,
Message processing module 20, alarm module 30.
Embodiment
The invention will be further described with the following Examples.
A kind of transmission line of electricity monitoring system based on wireless sensor network provided referring to Fig. 1, Fig. 2, the present embodiment, bag
Include transmission line parameter signal dispatcher module 1, transmission line of electricity Surveillance center 2 and intelligent terminal 3, the transmission line parameter information
Transceiver module 1 is based on wireless sensor network and gathers transmission line parameter information, and by the transmission line parameter information collected
The transmission line of electricity Surveillance center 2 is sent to, the transmission line of electricity Surveillance center 2 is used to receive, store, shows that transmission line of electricity is joined
Number information, and transmission line parameter information and normality threshold are compared, if more than normality threshold, output alarm signal；
Described intelligent terminal 3 is connected by communication network with transmission line of electricity Surveillance center 2, in the monitoring of real time access transmission line of electricity
Transmission line parameter information in the heart 2.
Preferably, the transmission line of electricity Surveillance center 2 includes information receiving module 10, message processing module 20, alarm mould
Block 30, described information receiving module 10 is connected with described information processing module 20, described information processing module 20 and the alarm
Module 30 is connected.
Preferably, described transmission line parameter signal dispatcher module 1 includes multiple transmission line of electricity monitoring nodes and one
Base station, wherein transmission line of electricity monitoring node include processor unit, wireless communication unit, information acquisition unit, energy supply list
Member and intelligent switch, wireless communication unit, information acquisition unit and intelligent switch are all connected with processor unit.
Preferably, described transmission line parameter information includes tension force, temperature, the voltage and current of transmission line of electricity.
The above embodiment of the present invention realizes transmission line of electricity monitoring using wireless sensor network technology, and in transmission line of electricity
Parameter information is alarmed when abnormal, is easy to related personnel to carry out remote monitoring.
Preferably, the transmission line parameter signal dispatcher module 1 includes sensor node and base station, sensor node root
The collection and transmission for carrying out the sensor node in sub-clustering, each cluster according to improved Clustering protocol are managed by cluster head, in cluster
Sensor node transmission line parameter information is sent to cluster head, the transmission line of electricity that cluster head convergence cluster inner sensor node is sent
After parameter information, base station is forwarded to, then by base station is uploaded to transmission line parameter information by mobile network communication mode defeated
Electric line Surveillance center 2.
Preferably, the improved Clustering protocol, is specifically included：
(1) multiple sensor nodes are selected in wireless sensor network region as initial cluster head；
(2) sub-clustering is carried out to the sensor node in wireless sensor network region, specifically included：To calculating each sensing
Device node is to the distance of initial cluster head, and each sensor node is added in the cluster where closest initial cluster head, so as to be formed
Multiple clusters；
(3) weights of each cluster inner sensor node are calculated according to the following formula：
In formula,I-th of sensor node in g-th of cluster is represented,Represent sensor nodeWeights,Represent sensor nodeDump energy,Represent sensor nodeA hop neighbor node number,Represent
Sensor nodeJ-th of hop neighbor nodes dump energy, KgRepresent the sensing node number that g-th of cluster has；
(4) weights are more than to the sensor node of setting weight threshold as candidate's cluster head, candidate's cluster head collection is formed, it is each
Take turns in the transmission line parameter information gathering cycle, each cluster selects the maximum sensor section of residual energy value in candidate's cluster head collection
Point serves as the cluster head of the cluster epicycle transmission line parameter information gathering.
This preferred embodiment selects remaining in each round transmission line parameter information gathering cycle in candidate's cluster head collection
The maximum sensor node of energy value serves as the cluster head of the cluster epicycle transmission line parameter information gathering, can allow excellent performance
Sensor node takes on cluster head, the network energy consumption of balanced transmission line road parameter information transceiver module 1, extension transmission line of electricity ginseng in turn
The network lifecycle of number signal dispatcher module 1.
Preferably, when carrying out transmission line parameter information gathering, the sensor node of selection optimum number enters in each cluster
Row transmission line parameter information gathering, the sensor node that transmission line parameter information is not gathered enters sleep state, specific bag
Include：
(1) optimum number ρ is set, each sensor node is arranged according to the descending order of residual energy value,
ρ sensor node carries out transmission line parameter information gathering before selection, and remaining sensor node enters sleep state；
(2) after the completion of the information gathering of each round transmission line parameter, the transmission line parameter of evaluation and test sensor node collection
Whether information meets following optimum number update condition：
In formula,Represent i-th of sensor node in g-th of cluster, MgThe sensor node number having for g-th of cluster
Mesh,Front-wheel is worked as in expressionThe transmission line parameter information of collection,Represent last round ofThe transmission line of electricity of collection
Parameter information, CON [] represents counting function, is met for countingThe sensor node of condition
Number, μmFor the data difference threshold value of setting, NmFor the quantity threshold of setting；
(3) if being unsatisfactory for optimum number update condition, chosen in next cycle according to former optimum number and carry out power transmission line
The sensor node of road parameter information collection；If meeting optimum number update condition, renewal optimum number is ρ=ρ+1, and under
A cycle chooses the sensor node for carrying out transmission line parameter information gathering according to the optimum number of renewal.
This preferred embodiment enables to the sensor node belonged in same cluster to carry out transmission line of electricity ginseng in turn
Number information gathering, other sensors node can then enter resting state to preserve energy, and in transmission line parameter information
The adjustment of optimum number is carried out when differing greatly, the precision of transmission line parameter information gathering, and balanced power transmission line can be ensured
The network energy consumption of road parameter information transceiver module 1.
Preferably, the sensor node for carrying out transmission line parameter information gathering carries out the first run according to the sample frequency of setting
Transmission line parameter information gathering, and according to transmission line parameter information during follow-up transmission line parameter information gathering
Situation of change carry out sample frequency regular adjustment, be specially：
(1) sensor node where cluster head setting in cluster carries out the initial samples frequency of transmission line parameter information gathering
Rate, maximum sample frequency
(2) sensor node according to original sampling frequency carry out first run transmission line parameter information gathering, often gather when
Between reach one setting cycle T when, evaluation and test sensor node collection transmission line parameter information whether meet following sampling
Frequency regularization condition：
In formula,Represent i-th of sensor node in g-th of cluster, i=1,2 ..., Ng, NgRepresent have in g-th of cluster
The number of some sensor nodes for carrying out transmission line parameter information gathering,Sensor is represented respectively
NodeThe transmission line parameter information gathered in t+1, t, t0For the initial samples time, θ is the data variation degree of setting
Threshold value；
(3) when any one sensor node meets above-mentioned sample frequency regularization condition, sample frequency is adjusted to：
If be all unsatisfactory for above-mentioned sample frequency regularization condition, sample frequency is adjusted to：
1)When,
2) whenWhen,
In formula,For the sample frequency after adjustment,For the sample frequency before adjustment,
This preferred embodiment carries out determining for sensor node sample frequency according to the intensity of variation of transmission line parameter information
Phase is adjusted, and is further provided with the adjustable strategies of sample frequency, and higher adopt can be kept when sensor signal is unstable
Sample frequency, it is to avoid the loss of effective transmission line parameter information, reduces sample frequency in good time when sensor signal is stable, reduces
The waste of energy consumption, so as to reduce the transmission line parameter information content for needing to transmit as far as possible, keeps transmission line parameter information to adopt
Extend the network lifecycle of transmission line parameter signal dispatcher module 1 on the premise of the precision of collection, ensure transmission line of electricity monitoring
The normal operation of system.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than to present invention guarantor
The limitation of scope is protected, although being explained with reference to preferred embodiment to the present invention, one of ordinary skill in the art should
Work as understanding, technical scheme can be modified or equivalent substitution, without departing from the reality of technical solution of the present invention
Matter and scope.
Claims (6)
1. a kind of transmission line of electricity monitoring system based on wireless sensor network, it is characterized in that, including transmission line parameter information
Transceiver module, transmission line of electricity Surveillance center and intelligent terminal, the transmission line parameter signal dispatcher module are based on wireless sensing
Device network gathers transmission line parameter information, and the transmission line parameter information collected is sent into the transmission line of electricity monitoring
Center, the transmission line of electricity Surveillance center is used to receive, store, shows transmission line parameter information, and by transmission line parameter
Information is compared with normality threshold, if more than normality threshold, output alarm signal；Described intelligent terminal passes through communication network
Network is connected with transmission line of electricity Surveillance center, for the transmission line parameter information in real time access transmission line of electricity Surveillance center.
2. a kind of transmission line of electricity monitoring system based on wireless sensor network according to claim 1, it is characterized in that, institute
Stating transmission line of electricity Surveillance center includes information receiving module, message processing module, alarm module, described information receiving module and institute
Message processing module connection is stated, described information processing module is connected with the alarm module.
3. a kind of transmission line of electricity monitoring system based on wireless sensor network according to claim 1, it is characterized in that, institute
The transmission line parameter signal dispatcher module stated includes multiple transmission line of electricity monitoring nodes and a base station, and wherein transmission line of electricity is supervised
Surveying node includes processor unit, wireless communication unit, information acquisition unit, energy supply unit and intelligent switch, channel radio
Letter unit, information acquisition unit and intelligent switch are all connected with processor unit.
4. a kind of transmission line of electricity monitoring system based on wireless sensor network according to claim 3, it is characterized in that, institute
Stating transmission line parameter signal dispatcher module includes sensor node and base station, and sensor node enters according to improved Clustering protocol
The collection and transmission of sensor node in row sub-clustering, each cluster are managed by cluster head, and the sensor node in cluster will transmit electricity
Line parameter circuit value information is sent after the transmission line parameter information sent to cluster head, cluster head convergence cluster inner sensor node, is forwarded to
Base station, then transmission line parameter information is uploaded to transmission line of electricity Surveillance center by mobile network communication mode by base station.
5. a kind of transmission line of electricity monitoring system based on wireless sensor network according to claim 4, it is characterized in that, institute
Improved Clustering protocol is stated, is specifically included：
(1) multiple sensor nodes are selected in wireless sensor network region as initial cluster head；
(2) sub-clustering is carried out to the sensor node in wireless sensor network region, specifically included：To calculating each sensor section
Point is arrived in the distance of initial cluster head, the cluster where the closest initial cluster head of each sensor node addition, so as to form multiple
Cluster；
(3) weights of each cluster inner sensor node are calculated according to the following formula：
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In formula,I-th of sensor node in g-th of cluster is represented,Represent sensor nodeWeights,Represent
Sensor nodeDump energy,Represent sensor nodeA hop neighbor node number,Represent sensor section
PointJ-th of hop neighbor nodes dump energy, KgRepresent the sensing node number that g-th of cluster has；
(4) weights are more than to the sensor node of setting weight threshold as candidate's cluster head, candidate's cluster head collection are formed, each round is defeated
In electric line parameter information collection period, each cluster selects the maximum sensor node load of residual energy value in candidate's cluster head collection
Appoint the cluster head of the cluster epicycle transmission line parameter information gathering.
6. a kind of transmission line of electricity monitoring system based on wireless sensor network according to claim 5, it is characterized in that, enter
The sensor node of row transmission line parameter information gathering carries out first run transmission line parameter information according to the sample frequency of setting
Collection, and adopted during follow-up transmission line parameter information gathering according to the situation of change of transmission line parameter information
The regular adjustment of sample frequency, be specially：
(1) sensor node where cluster head setting in cluster carries out the original sampling frequency, most of transmission line parameter information gathering
Big sample frequency
(2) sensor node carries out first run transmission line parameter information gathering according to original sampling frequency, and the time often gathered arrives
During up to a cycle T set, whether the transmission line parameter information of evaluation and test sensor node collection meets following sample frequency
Regularization condition：
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In formula,Represent i-th of sensor node in g-th of cluster, i=1,2 ..., Ng, NgRepresent that what is had in g-th of cluster enters
The number of the sensor node of row transmission line parameter information gathering,Sensor node is represented respectively
The transmission line parameter information gathered in t+1, t, t0For the initial samples time, θ is the data variation degree threshold value of setting；
(3) when any one sensor node meets above-mentioned sample frequency regularization condition, sample frequency is adjusted to：
If be all unsatisfactory for above-mentioned sample frequency regularization condition, sample frequency is adjusted to：
1)When,
2) whenWhen,
In formula,For the sample frequency after adjustment,For the sample frequency before adjustment,
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107340017A (en) * | 2017-06-28 | 2017-11-10 | 深圳源广安智能科技有限公司 | Aerial power transmission line on-line monitoring system |
| CN107770817A (en) * | 2017-12-11 | 2018-03-06 | 何旭连 | The power transmission line monitoring device of employing wireless sensor network |
| CN107801171A (en) * | 2017-11-06 | 2018-03-13 | 龚土婷 | monitoring device for overhead transmission line |
| CN107995602A (en) * | 2017-12-11 | 2018-05-04 | 梁金凤 | Mine wireless sensing network fire remote monitoring system based on cloud computing |
| CN108092694A (en) * | 2018-01-03 | 2018-05-29 | 韦德永 | A kind of aerial power transmission line monitors system |
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| CN108282755A (en) * | 2017-12-25 | 2018-07-13 | 陈剑桃 | A kind of ward environment monitoring system |
| CN108200662A (en) * | 2017-12-25 | 2018-06-22 | 程丹秋 | Urban track traffic civil engineering facility intelligent monitor system |
| CN108092694A (en) * | 2018-01-03 | 2018-05-29 | 韦德永 | A kind of aerial power transmission line monitors system |
| CN108233538A (en) * | 2018-01-10 | 2018-06-29 | 深圳森阳环保材料科技有限公司 | Transmission line wire real-time monitoring system for state |
| CN108335471A (en) * | 2018-01-19 | 2018-07-27 | 深圳市鑫汇达机械设计有限公司 | Wind power plant remote real time monitoring system |
| CN108336822A (en) * | 2018-01-30 | 2018-07-27 | 深圳众厉电力科技有限公司 | Transmission line of electricity monitoring and warning system applied to intelligent grid |
| CN108512904A (en) * | 2018-03-01 | 2018-09-07 | 深圳智达机械技术有限公司 | A kind of power transmission line monitoring system based on big data and WSN technology |
| CN109040996A (en) * | 2018-08-02 | 2018-12-18 | 深圳智达机械技术有限公司 | Gas station's intelligent monitoring administration system |
| CN109120456A (en) * | 2018-09-06 | 2019-01-01 | 江苏佳源科技有限公司 | Controller switching equipment state intelligent monitoring system |
| CN112822652A (en) * | 2020-12-29 | 2021-05-18 | 国家电网有限公司 | Power transmission line multi-state perception early warning system |
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