CN206818830U - A kind of extra-high video sensor drawn game portion discharge on-line monitoring system - Google Patents
A kind of extra-high video sensor drawn game portion discharge on-line monitoring system Download PDFInfo
- Publication number
- CN206818830U CN206818830U CN201720168226.1U CN201720168226U CN206818830U CN 206818830 U CN206818830 U CN 206818830U CN 201720168226 U CN201720168226 U CN 201720168226U CN 206818830 U CN206818830 U CN 206818830U
- Authority
- CN
- China
- Prior art keywords
- circuit
- signal
- partial discharge
- extra
- video sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000012544 monitoring process Methods 0.000 title claims abstract description 40
- 230000006854 communication Effects 0.000 claims abstract description 27
- 230000005540 biological transmission Effects 0.000 claims abstract description 26
- 238000004891 communication Methods 0.000 claims abstract description 26
- 238000012360 testing method Methods 0.000 claims abstract description 22
- 238000012545 processing Methods 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 9
- 230000008569 process Effects 0.000 claims abstract description 6
- 238000003745 diagnosis Methods 0.000 claims description 20
- 230000005611 electricity Effects 0.000 claims description 6
- 238000004146 energy storage Methods 0.000 claims description 4
- 210000003516 pericardium Anatomy 0.000 claims 1
- 230000003993 interaction Effects 0.000 abstract description 4
- 230000008859 change Effects 0.000 description 6
- 238000000605 extraction Methods 0.000 description 5
- 238000013478 data encryption standard Methods 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012806 monitoring device Methods 0.000 description 2
- 230000006855 networking Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
Landscapes
- Testing Relating To Insulation (AREA)
Abstract
The utility model provides a kind of extra-high video sensor drawn game portion discharge on-line monitoring system, and extra-high video sensor includes：Signal processing circuit is used to carry out signal transacting to the local discharge signal collected；Characteristic extracting circuit is used to extract the partial discharge characteristic parameter of Devices to test from local discharge signal as partial discharge information；Transmission circuit includes antenna subsystem, radio-frequency front-end subsystem and baseband subsystems, for carrying out data interaction with the external world；Processor is connected with signal processing circuit, characteristic extracting circuit and transmission circuit respectively, and for handling partial discharge information, and control signal process circuit, characteristic extracting circuit and transmission circuit are in asynchronous working state.The program wirelessly gathers local discharge signal, and characteristic parameter is extracted as partial discharge information, the data volume for needing to transmit is reduced, by the way that the collection of signal and radio communication are carried out into asynchronous process, avoids interference of the signal of radio communication for collection signal.
Description
Technical field
It the utility model is related to monitoring technical field, and in particular to a kind of extra-high video sensor drawn game portion On-line Discharge monitoring
System.
Background technology
Shelf depreciation refers to work as applied voltage caused field strength in the electrical apparatus, it is sufficient to puts insulated part region
Electricity, but this electric discharge phenomena of fixed discharge channel are not formed in region of discharge.This electric discharge is exhausted between conductor only to cause
Edge locally short (road and bridge) connects to be limited without forming conductive channel.Shelf depreciation can all have some influences to dielectric each time,
Influence of the slight shelf depreciation to Electric Power Equipment Insulation is smaller, and the decline of dielectric strength is slower；And strong shelf depreciation, then
Dielectric strength can be made to decline quickly.This is a key factor for making the apparatus insulated damage of high-tension electricity.Therefore, high-tension electricity is designed
When power is apparatus insulated, to consider in the presence of long-term work voltage, not allow the part that generation is stronger in insulation system to put
Electricity.Operating equipment will be strengthened monitoring, should be out of service by equipment when being locally discharged beyond to a certain degree, examined
Repair or change.
At present, two kinds of live monitoring and on-line monitoring are mainly included for the partial discharge monitoring means of substation equipment, wherein,
Based on live monitoring.Partial discharge live monitoring monitoring of equipment overlay area is limited, and operator monitoring amount is big, efficiency is low.It is and right at present
Carried out in the partial discharge on-line monitoring of substation equipment mainly for single equipments such as GIS, transformers, construction cost is high, monitoring system
The utilization rate of system is low, and maintenance workload is big, and large-scale use is less economical.It is main at present in terms of transformer station's whole station partial discharge monitoring
To be realized by placement sensor array, mode has two kinds of fixing device monitoring and mobile monitoring, and wherein fixing device monitoring exists
It is mainly complicated using wired transmission means such as coaxial cable and optical fiber, network arrangement in the transmission of data, it is difficult to flexibly change
Monitoring device is laid out, poor expandability, and positioning precision is poor；Mobile monitoring mode belongs to planned monitoring, poor real, can not realize
On-line monitoring.All in all, the partial discharge monitoring technology of transformer station's whole station monitoring does not have suitable solution party also at present
Case.
Therefore, the layout convenience and scalability of transformer station's local discharge on-line monitoring device how are improved, turns into one
Individual technical problem urgently to be resolved hurrily.
Utility model content
Therefore, the technical problems to be solved in the utility model is the partial discharge monitoring scheme of substation equipment in the prior art
Flexibility is poor, is unfavorable for extending.
In view of this, the first aspect of the utility model embodiment provides a kind of spy for being used to monitor local discharge signal
High frequency sensors, including：Signal processing circuit, for carrying out signal transacting to the local discharge signal collected；Feature extraction
Circuit, for extracting the partial discharge characteristic parameter conduct of the Devices to test from the local discharge signal by signal transacting
The partial discharge information；Transmission circuit, including antenna subsystem, radio-frequency front-end subsystem and baseband subsystems, for entering with the external world
Row data interaction；Processor, connect respectively with the signal processing circuit, the characteristic extracting circuit and the transmission circuit
Connect, for handling the partial discharge information, and control the signal processing circuit, the characteristic extracting circuit and the transmission circuit
In asynchronous working state.
Preferably, the signal processing circuit includes filter circuit, amplifying circuit and detecting circuit.
Preferably, in addition to：Power supply, for being powered for the extra-high video sensor.
Preferably, the power supply includes：Energy acceptance circuit, energy storage circuit and energy management circuit.
Preferably, the superfrequency covers disposed on sensor is equipped with GPS interface.
The second aspect of the utility model embodiment provides a kind of transformer station's partial discharge monitoring system, including：
Extra-high video sensor described in the first aspect of the utility model embodiment, is arranged in the monitored area of transformer station, for adopting
Collect the partial discharge information of Devices to test in the monitored area；Diagnosis server, passed for receiving the superfrequency sensor wireless
The defeated partial discharge information, and go out according to the partial discharge information diagnosis shelf depreciation feelings of Devices to test in the monitored area
Condition.
Preferably, in addition to：Data relay center, for receiving the partial discharge of the superfrequency sensor wireless transmission
Information is simultaneously transferred to the diagnosis server.
Preferably, the data relay center includes：Radio communication circuit, data exchange circuit and wire communication circuit.
Preferably, in the Devices to test that the extra-high video sensor is built in the monitored area or it is arranged on institute
State Devices to test outer surface or set independently of the Devices to test.
Preferably, the quantity of the extra-high video sensor is at least four, is arranged on the monitoring in a distributed fashion
In region.
The technical solution of the utility model has advantages below：
1st, the extra-high video sensor that the utility model embodiment provides, wirelessly gathers local discharge signal, and
By to local discharge signal carry out characteristic parameter extraction, using the characteristic parameter extracted as partial discharge information wirelessly
Carry out data interaction with the external world, greatly reducing needs the data volume transmitted, by by the collection of superfrequency sensor signal with
Radio communication carries out asynchronous process, avoids interference of the signal of radio communication for collection signal, improves collection part and puts
The accuracy of electric signal.
2nd, transformer station's partial discharge monitoring system that the utility model embodiment provides, is existed by extra-high video sensor
Partial discharge information is gathered in monitored area and is wirelessly transmitted to diagnosis server, diagnosis server the partial discharge received is believed
Breath is diagnosed, and so as to draw the shelf depreciation situation of Devices to test in monitored area, extra-high video sensor uses radio communication
Networking mode, add flexibility and the scalability of partial discharge monitoring system layout.
Brief description of the drawings
, below will be right in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, describe below
In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram for being used to monitor the extra-high video sensor of local discharge signal of the utility model embodiment 1；
Fig. 2 is the schematic diagram of transformer station's partial discharge monitoring system of the utility model embodiment 2.
Embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described
Embodiment is the utility model part of the embodiment, rather than whole embodiments.Based on the embodiment in the utility model, sheet
The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality
Novel protected scope.
, it is necessary to illustrate in description of the present utility model, unless otherwise clearly defined and limited, term " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, can be with
It is the connection of two element internals, can is wireless connection or wired connection.For one of ordinary skill in the art
For, concrete meaning of the above-mentioned term in the utility model can be understood with concrete condition.
In addition, as long as technical characteristic involved in the utility model different embodiments disclosed below is each other
Conflict can is not formed to be combined with each other.
Embodiment 1
The present embodiment provides a kind of extra-high video sensor for being used to monitor local discharge signal, as shown in figure 1, the superfrequency
Sensor includes：Signal processing circuit 1, characteristic extracting circuit 2, transmission circuit 3 and processor 4, wherein,
Signal processing circuit 1, for carrying out signal transacting, specifically, the superfrequency to the local discharge signal collected
Sensor can also include signal coupling circuit 5, such as omnidirectional's electromagnetism that microstrip antenna can be utilized to receive 50MHz-800MHz
Signal, local discharge signal is wirelessly gathered to realize；
Characteristic extracting circuit 2, the partial discharge for extracting Devices to test from the local discharge signal by signal transacting are special
Parameter is levied as partial discharge information, specifically, the envelope detection waveform of partial discharge pulse is input to feature extraction after treatment
The digital analog converter 21 of circuit 2, such as high-speed ADC converter, the analog signal collected is changed using high-speed ADC converter
For data signal, its continuous number signal exported flows through FPGA, and (Field-Programmable Gate Array, scene can
Programming gate array) circuit 22 carries out real-time characteristic parameter extraction, so as to obtain the waveform feature parameter of discharge pulse, herein will
The characteristic parameter of local discharge signal can substantially reduce volume of transmitted data as partial discharge information.
Transmission circuit 3 is wireless transceiver circuit 3, be responsible for data wireless transmission and reception, and support wireless self-networking and
Wireless time service is synchronous, mainly includes antenna subsystem 31, radio-frequency front-end subsystem 32 and baseband subsystems 33.
Processor 4 is connected with signal processing circuit 1, characteristic extracting circuit 2 and transmission circuit 3 respectively, for partial discharge
Information carries out relevant treatment, such as using MD5 () Message-Digest Algorithm5, md5-challenge) or DES
A kind of (Data Encryption Standard, i.e. data encryption standards, being block algorithm encrypted using key) algorithm is played a game
Information is put to be encrypted and decrypted, and according to periodic duty or pop-up mission control signal process circuit 1, characteristic extracting circuit 2
Asynchronous working state is in transmission circuit 3, to ensure that transmission circuit 3 is closed when gathering local discharge signal,
The asynchronous process of signal acquisition and radio communication can be realized, interference of the radio communication to signal acquisition is avoided, so as to improve
The accuracy of data.
As a kind of preferred scheme, signal processing circuit 1 includes filter circuit 11, amplifying circuit 12 and detecting circuit
13, specifically, the amplifying circuit 12 of multi-stage cascade, such as maximum amplification can be used to can be designed as 50dB, it is right successively
The local discharge signal collected of signal coupling circuit 5 carries out bandpass filtering, low noise amplification and envelope detection, in order to believe
Number later stage transmission and calculate.
As a kind of preferred scheme, in addition to：Power supply 6, for being powered for extra-high video sensor.Power supply 6 includes：Energy connects
Receive circuit 61, energy storage circuit 62 and energy management circuit 63.Wherein, energy acceptance circuit 61 can receive remote transmission
Wireless energy, wireless charging or power supply can be both realized, the power storage that then will be received by energy storage circuit 62,
When needing power supply, the output of electric energy is managed according to actual conditions by energy management circuit 63, extra-high video sensor is strengthened and supplies
The rationalization of electric system.
As a kind of preferred scheme, superfrequency covers disposed on sensor is equipped with GPS interface (not shown), high-precision for realizing
Time synchronized.
Above-mentioned extra-high video sensor, local discharge signal is wirelessly gathered, and by entering to local discharge signal
Row characteristic parameter extraction, data interaction wirelessly is carried out with the external world using the characteristic parameter extracted as partial discharge information,
The data volume for needing to transmit is greatly reduced, by the way that the collection of superfrequency sensor signal and radio communication are entered at line asynchronous
Reason, interference of the signal of radio communication for collection signal is avoided, improve the accuracy of collection local discharge signal.
Embodiment 2
The present embodiment has supplied a kind of transformer station's partial discharge monitoring system, as shown in Fig. 2 including：In embodiment 1
Extra-high video sensor 201, data relay center 202 and diagnosis server 203, extra-high video sensor 201 and data relay center
202 wirelessly connect, between data relay center 202 and diagnosis server 203 can by wired connection, wherein,
Extra-high video sensor 201, is arranged in the monitored area of transformer station, for gathering Devices to test in monitored area
Partial discharge information, the concrete composition and function of extra-high video sensor 201 are referring to the detailed description in embodiment 1.
As a kind of preferred scheme, extra-high video sensor 201 is built in the Devices to test in monitored area or set
Set in Devices to test outer surface or independently of Devices to test.Extra-high video sensor 201 can group wirelessly herein
Net, when avoiding layout at the scene the problem of consideration connecting line, layout type is flexible, can be appointed according to the concrete condition of transformer station
Meaning changes, and can also utilize inside transforming plant primary equipment and pacify for the extra-high video sensor 201 being arranged in Devices to test
The built-in signal coupler of dress, is extended application, to save monitoring cost.
Data relay center 202, for receiving partial discharge information that extra-high video sensor 201 is wirelessly transferred and being transferred to diagnosis
Server 203.Specifically, data relay center 202 can collect the partial discharge that extra-high video sensor 201 is sent by radio communication
Information, and by wire communication by the data transfer of reception to diagnosis server 203, meanwhile, data relay center 202 can also
The order that diagnosis server 203 issues is transferred to extra-high video sensor 201, i.e., it with diagnosis server 203 and extra-high keeps pouring in
It is two-way communication between sensor 201.
As a kind of preferred scheme, data relay center 202 includes：Radio communication circuit, data exchange circuit (for example are handed over
Change planes) and wire communication circuit (such as Ethernet interface), and data processing module can also be included, for receiving
Data carry out relevant treatment；Power module and clock module, for providing electric energy and time clock feature.Specifically, radio communication electricity
Road be used for extra-high video sensor 201 carry out radio communication, data processing module to radio communication circuit carry out data processing and
Control on Communication, realize the transmitted in both directions of wireless data and the sychronous wireless communication control between extra-high video sensor 201；It is logical
Cross data processing module to be controlled data exchange circuit, to realize between radio communication circuit and wire communication circuit
Data exchange.
Diagnosis server 203, the partial discharge information being wirelessly transferred for receiving extra-high video sensor 201, and believed according to partial discharge
Breath is diagnosed to be the shelf depreciation situation of Devices to test in monitored area, i.e., is carried out according to the gathered data of extra-high video sensor 201
The diagnosis and positioning of transformer station's whole station shelf depreciation.
As a kind of preferred scheme, the quantity of extra-high video sensor 201 is at least four, is arranged in a distributed fashion
In monitored area.The partial discharge information that the extra-high video sensor 201 of at least four collects is being transmitted to diagnosis server 203, can be with
Treated using based on distributed, multi-source ultrahigh frequency partial discharge signal intensity distribution partial discharge location algorithm to realize in monitored area
The diagnosis of the shelf depreciation situation of measurement equipment, concrete mode are as follows：
In spatial, radio signal energy can be lossy in communication process, and this loss and propagation path
It is related.It is exactly to utilize this correlation based on distributed, multi-source ultrahigh frequency partial discharge signal intensity distribution partial discharge location algorithm
Draw transmitting node the distance between to receiving node.Such a loss is referred to as path loss in radio transmission theory, Ci Zhongxiang
The model that closing property is established is path loss model.
Signal intensity is inversely proportional with transmission range, it is assumed that Partial discharge signal (partial discharge information) produces end and sensor (superfrequency
Sensor 201) end distance be dn, the average energy that sensor receives is Pn, then P1/P2=(d2/d1)β, wherein β is decay system
Number.Due to the average energy that sensor receives and signal amplitude UnSquare directly proportional, i.e. U1 2/U2 2=P1/P2=(d2/d1
)β, it is assumed that d1For 1 meter, then U1For apart from partial discharge occur point one meter when signal amplitude (characteristic parameter), be set to U0, then dn=
(U0 2/Un 2)1/β.
Due to U0It is unknown, so the distance of direct solution partial discharge source to sensor is unrealistic, can be non-by solving
System of linear equations is in the hope of the optimal unknown solution under least square meaning.
For example target area (monitored area) places n sensor, it is assumed that the position of i-th of sensor is (xi,yi,zi),
Partial discharge source coordinate is (x, y, z), and according to above formula, it is as follows that we can list Nonlinear System of Equations (n=9)：
Wherein U1, U2…U9The signal amplitude measured by sensor.
This is one on unknown number x, y, z and U0Nonlinear System of Equations, in the case of optimal, equation group has one
Individual solution.Yet with the presence of measurement error and systematic error, this equation group does not solve generally, order
The optimal solution under least square meaning is sought, one group is exactly found and makes e values minimum x, y, z and U0.It can now use
Newton iteration method and grid data service scheduling algorithm are calculated.By the amplitude that sensor is measured is bigger, sensor is represented
Nearer apart from partial discharge source, so either the initial value of Newton iteration is chosen, or the scope of grid search determines, all can be according to institute
The qualitative relationships for surveying amplitude determine an approximate range, so as to realize based on RSSI (Received Signal Strength
Indicator be reception signal intensity instruction) location algorithm partial discharge electric discharge be accurately positioned.
Attenuation coefficient β changes with different radio transmission environment, and this can directly influence the positioning precision of calculating.Becoming
Under the wireless transmission environments of power station, the essential step of RSSI positioning is attenuation coefficient estimation.The method of estimation of most simple, intuitive is to adopt
Use calibration technique.When n is more than or equal to 4 in aforesaid way (when the quantity of extra-high video sensor 201 is at least four), Cai Nengshi
Now it is accurately positioned, n is bigger, and monitoring result is more accurate.
Above-mentioned transformer station's partial discharge monitoring system, pass through the extra-high collection office in monitored area of video sensor 201
Put information and wirelessly transmit to diagnosis server 203, diagnosis server 203 and the partial discharge information received is examined
Disconnected, so as to draw the shelf depreciation situation of Devices to test in monitored area, extra-high video sensor 201 uses the networking of radio communication
Mode, add flexibility and the scalability of partial discharge monitoring system layout.
Obviously, above-described embodiment is only intended to clearly illustrate example, and is not the restriction to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or
Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or
Among the protection domain that variation is created still in the utility model.
Claims (10)
- A kind of 1. extra-high video sensor for being used to monitor local discharge signal, it is characterised in that including：Signal processing circuit, for carrying out signal transacting to the local discharge signal collected；Characteristic extracting circuit, for extracting the partial discharge feature of Devices to test from the local discharge signal by signal transacting Parameter is as partial discharge information；Transmission circuit, including antenna subsystem, radio-frequency front-end subsystem and baseband subsystems, for carrying out data friendship with the external world Mutually；Processor, it is connected respectively with the signal processing circuit, the characteristic extracting circuit and the transmission circuit, for locating The partial discharge information is managed, and controls the signal processing circuit, the characteristic extracting circuit and the transmission circuit to be in asynchronous Working condition.
- 2. the extra-high video sensor according to claim 1 for being used to monitor local discharge signal, it is characterised in that the letter Number process circuit includes filter circuit, amplifying circuit and detecting circuit.
- 3. the extra-high video sensor according to claim 1 or 2 for being used to monitor local discharge signal, it is characterised in that also Including：Power supply, for being powered for the extra-high video sensor.
- 4. the extra-high video sensor according to claim 3 for being used to monitor local discharge signal, it is characterised in that the electricity Source includes：Energy acceptance circuit, energy storage circuit and energy management circuit.
- 5. the extra-high video sensor according to claim 1 for being used to monitor local discharge signal, it is characterised in that the spy GPS interface is provided with high frequency sensors.
- A kind of 6. transformer station's partial discharge monitoring system, it is characterised in that including：Such as the extra-high video sensor any one of claim power 1-5, it is arranged in the monitored area of transformer station, for adopting Collect the partial discharge information of Devices to test in the monitored area；Diagnosis server, for receiving the partial discharge information of the superfrequency sensor wireless transmission, and according to the partial discharge Information diagnosis goes out the shelf depreciation situation of Devices to test in the monitored area.
- 7. transformer station's partial discharge monitoring system according to claim 6, it is characterised in that also include：In data Turn center, for receiving the partial discharge information of the superfrequency sensor wireless transmission and being transferred to the diagnosis server.
- 8. transformer station's partial discharge monitoring system according to claim 7, it is characterised in that in the data relay Pericardium includes：Radio communication circuit, data exchange circuit and wire communication circuit.
- 9. transformer station's partial discharge monitoring system according to claim 6, it is characterised in that the superfrequency sensing In the Devices to test that device is built in the monitored area or it is arranged on the Devices to test outer surface or independently of institute State Devices to test setting.
- 10. transformer station's partial discharge monitoring system according to any one of claim 6 to 9, it is characterised in that institute The quantity for stating extra-high video sensor is at least four, is arranged in a distributed fashion in the monitored area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720168226.1U CN206818830U (en) | 2017-02-23 | 2017-02-23 | A kind of extra-high video sensor drawn game portion discharge on-line monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720168226.1U CN206818830U (en) | 2017-02-23 | 2017-02-23 | A kind of extra-high video sensor drawn game portion discharge on-line monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206818830U true CN206818830U (en) | 2017-12-29 |
Family
ID=60751512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720168226.1U Active CN206818830U (en) | 2017-02-23 | 2017-02-23 | A kind of extra-high video sensor drawn game portion discharge on-line monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206818830U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106771935A (en) * | 2017-02-23 | 2017-05-31 | 全球能源互联网研究院 | A kind of extra-high video sensor drawn game portion discharge on-line monitoring system |
| CN108344930A (en) * | 2018-01-31 | 2018-07-31 | 国家电网公司 | A kind of monitoring device and method of ring main unit temperature and shelf depreciation |
-
2017
- 2017-02-23 CN CN201720168226.1U patent/CN206818830U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106771935A (en) * | 2017-02-23 | 2017-05-31 | 全球能源互联网研究院 | A kind of extra-high video sensor drawn game portion discharge on-line monitoring system |
| CN108344930A (en) * | 2018-01-31 | 2018-07-31 | 国家电网公司 | A kind of monitoring device and method of ring main unit temperature and shelf depreciation |
| CN108344930B (en) * | 2018-01-31 | 2020-03-17 | 国家电网公司 | Device and method for monitoring temperature and partial discharge of ring main unit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106771935A (en) | A kind of extra-high video sensor drawn game portion discharge on-line monitoring system | |
| CN206818830U (en) | A kind of extra-high video sensor drawn game portion discharge on-line monitoring system | |
| CN103823105A (en) | Wireless measurement system for debugging power transmission lines | |
| CN105004943A (en) | Electric energy quality monitoring and electric energy metering device that can be mounted and dismounted in an electrified manner at a high-tension side | |
| CN203479892U (en) | Bus distributed on-line monitoring system for metal oxide arrester leakage current | |
| CN105182074A (en) | Smart power grid network unified phasing system | |
| CN113300461A (en) | Intelligent distribution box and intelligent distribution system | |
| CN104090173B (en) | The distributed field strength measurement system and method for a kind of multinode based on Bluetooth communication | |
| CN111024160A (en) | Acquisition method and system suitable for temperature and humidity online monitoring signals of cable core of power distribution cable connector | |
| CN103166235A (en) | System for controlling power station reactive power automatic compensation based on third generation (3G) technology | |
| CN206339613U (en) | Cable partial discharge monitoring system and high frequency sensors | |
| CN205940803U (en) | Transformer winding temperature remote monitoring device based on thing networking | |
| CN207282000U (en) | A kind of antenna data automated collection systems | |
| CN209927942U (en) | Intelligent online monitoring instrument for lightning arrester of power transmission line based on wireless communication | |
| CN211578036U (en) | Ultrahigh frequency and ultrasonic wave combined online monitoring system based on wireless transmission mode | |
| CN213274626U (en) | Wireless temperature measurement system for transformer substation switch cabinet | |
| CN204882734U (en) | Can be at electrified electric energy quality monitoring and electric energy metering device who installs and removes of high -pressure side | |
| CN209373090U (en) | The on-line monitoring system of voltage transformer secondary voltage drop | |
| CN106526440A (en) | Cable partial discharge monitoring system and method | |
| CN206773134U (en) | Overhead line partial discharge on-line monitoring system | |
| CN207588862U (en) | A kind of fault points of optical cables detecting system based on internet | |
| Deng et al. | Distributed wireless sensor network system for electric field measurement | |
| CN207318606U (en) | A kind of strong electromagnetic transient signal measuring system based on wireless communication | |
| CN111220287A (en) | Temperature monitoring equipment and method for switch cabinet passive wireless switch equipment | |
| CN211626718U (en) | Passive wireless switchgear temperature monitoring equipment of cubical switchboard |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181019 Address after: 102209 18 Riverside Avenue, Changping District science and Technology City, Beijing Co-patentee after: State Grid Corporation of China Patentee after: Global energy Internet Institute, Inc. Co-patentee after: State Grid Shandong Electric Power Company Weifang Power Supply Company Address before: 102209 18 Riverside Avenue, Changping District science and Technology City, Beijing Patentee before: Global energy Internet Institute, Inc. |
|
| TR01 | Transfer of patent right |