CN109855778A - cable state evaluation system - Google Patents
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- CN109855778A CN109855778A CN201910251844.6A CN201910251844A CN109855778A CN 109855778 A CN109855778 A CN 109855778A CN 201910251844 A CN201910251844 A CN 201910251844A CN 109855778 A CN109855778 A CN 109855778A
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- 238000011156 evaluation Methods 0.000 title abstract 3
- 239000013307 optical fiber Substances 0.000 claims abstract description 42
- 238000007405 data analysis Methods 0.000 claims abstract description 22
- 230000003287 optical effect Effects 0.000 claims description 29
- 238000004458 analytical method Methods 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 abstract description 7
- 238000012545 processing Methods 0.000 abstract description 4
- 238000011157 data evaluation Methods 0.000 abstract 1
- 230000005611 electricity Effects 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000005622 photoelectricity Effects 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
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Abstract
The application relates to a cable state evaluation system, which comprises an optical fiber pressure measuring device, a signal processing device and a signal processing device, wherein the optical fiber pressure measuring device is used for acquiring inner layer stress information of a cable; the information conversion device is in signal connection with the optical fiber pressure measuring device and is used for converting an electric signal into a digital signal; the power supply device is electrically connected with the optical fiber pressure measuring device and the information conversion device and is used for providing electric energy for the optical fiber pressure measuring device and the information conversion device; and the data analysis and evaluation device is in signal connection with the information conversion device and is used for analyzing and evaluating the digital signals. The cable state evaluation system provided by the application can effectively evaluate the stress change condition of the cable in the running state.
Description
Technical field
This application involves cable running state real-time monitoring technical fields, more particularly to cable status assessment system.
Background technique
With the development of bank electricity technology, cable is more and more widely used in bank electricity transmission of electricity.Cable is a kind of
It in the special cable that ship and harbour use, needs to adapt to the special use environment in harbour, should have moisture-proof, high temperature resistant, resist
The characteristics such as bending, suppleness height, excellent electrical property, and require to assess its insulation performance and mechanical performance in real time.
The country is limited only to common cable to the monitoring of cable operating status at present, and both at home and abroad to cable operating status
Monitoring is also weaker, can not carry out real-time monitoring and assessment to cable operating status.Especially under cable operating status, pass
The monitoring method of system scheme can not can only obtain the surface stress under cable operating status, and can not comment the stress of cable internal layer
Estimate.
Therefore, traditional scheme can not effectively assess the stress variation situation under cable operating status.
Summary of the invention
Based on this, it is necessary to can not effectively assess the stress variation situation under cable operating status for traditional scheme, mention
For a kind of cable status assessment system.
A kind of cable status assessment system is used for cable, comprising:
Optical fiber pressure measuring unit, for obtaining the internal layer stress information of cable；
Transcriber is connect, for converting electrical signals to digital signal with the optical fiber pressure measuring unit signal；
Power supply device is electrically connected with the optical fiber pressure measuring unit and the transcriber；
Data analysis assessment device, connect, for dividing the digital signal with the transcriber signal
Analysis assessment.
The cable status assessment system provided by the present application, including optical fiber pressure measuring unit, transcriber, power supply dress
It sets and analyzes assessment device with data.The optical fiber pressure measuring unit is used to acquire the internal layer stress information of cable.The information conversion
Device is connect with the optical fiber pressure measuring unit signal, for the stress information to be converted to digital signal.The power supply device
Electric energy is provided for the optical fiber pressure measuring unit and the transcriber.The data analysis assessment device and the information turn
Changing device signal connection, for carrying out analysis assessment to the digital signal.Cable status assessment system provided by the present application
System can use the stress information that the method that optical fiber surveys pressure obtains cable internal layer.In turn, the optical fiber pressure measuring unit transports cable
Internal layer stress information under row state is transmitted to the data analysis assessment device by the transcriber.Then, work people
Member can analyze in real time from the data and obtain analysis assessment result on assessment device, and the analysis assessment result includes in cable
Ply stress changing condition.Therefore, staff can effectively assess the stress variation situation under cable operating status.
In one of them embodiment, the optical fiber pressure measuring unit includes:
Laser emitter；
Optical splitter, the light input end of the optical splitter is electrically connected with the laser emitter and signal is connect；
First coupler is connect with the electrical connection of the light output end of the optical splitter and signal；
Outer difference detector is connect with first coupler electrical connection and signal；
Photodetector is connect with the outer difference detector electrical connection and signal；
First amplifier is connect with the photodetector and transcriber electrical connection and signal.
In one of them embodiment, the optical fiber pressure measuring unit further include:
Pulse-modulator is connect with optical splitter electrical connection and signal；
Second coupler is connect with pulse-modulator electrical connection and signal.
In one of them embodiment, the pulse-modulator includes:
Light intensity modulator is connect with second coupler electrical connection and signal；
Phase-modulator is connect with light intensity modulator electrical connection and signal.
In one of them embodiment, the optical fiber pressure measuring unit further include:
Optical filter is connect with the phase-modulator and first coupler electrical connection and signal.
In one of them embodiment, the optical fiber pressure measuring unit further include:
First driver is connect with pulse-modulator electrical connection and signal；
Second driver is connect with light intensity modulator electrical connection and signal；
Third driver is connect with phase-modulator electrical connection and signal.
In one of them embodiment, further includes:
Temperature collecting device is connect with transcriber electrical connection and signal, and the temperature collecting device is used for
Acquire the running temperature of cable.
In one of them embodiment, the temperature collecting device includes:
Laser pulse emission device；
Photo-coupler is connect with laser pulse emission device electrical connection and signal；
It is divided filter, is connect with photo-coupler electrical connection and signal；
Photoelectric converter is connect with light splitting filter electrical connection and signal；
Second amplifier, while being connect with the photoelectric converter and transcriber electrical connection and signal.
In one of them embodiment, which is characterized in that further include:
Display device is analyzed assessment device signal with the data and is connect.
In one of them embodiment, further includes:
Storage device is analyzed assessment device signal with the data and is connect.
In one of them embodiment, the storage device is memory.
Detailed description of the invention
Fig. 1 is the schematic illustration for the cable status assessment system that one embodiment of the application provides.
Fig. 2 is the schematic diagram for the temperature measuring device that one embodiment of the application provides.
Description of symbols:
Cable status assessment system 10
Optical fiber pressure measuring unit 100
Laser emitter 110
Optical splitter 120
First coupler 130
Outer difference detector 140
Photodetector 150
First amplifier 160
Signal processor 170
Pulse-modulator 180
Second coupler 181
Light intensity modulator 182
Phase-modulator 183
Optical filter 184
First driver 190
Second driver 191
Third driver 192
Transcriber 200
Power supply device 300
Data analysis assessment device 400
Temperature collecting device 500
Laser pulse emission device 510
Photo-coupler 520
It is divided filter 530
Photoelectric converter 540
Second amplifier 550
Display device 700
Storage device 800
Specific embodiment
Traditional scheme can not effectively assess the stress variation situation under cable operating status, be based on this, and the application provides one
Kind cable status assessment system.
In order to which the objects, technical solutions and advantages of the application are more clearly understood, by the following examples, and combine attached
Figure, is further elaborated the cable status assessment system of the application.It should be appreciated that specific implementation described herein
Example only to explain the application, is not used to limit the application.
It is herein component institute serialization number itself, such as " first ", " second " etc., is only used for distinguishing described object,
Without any sequence or art-recognized meanings.And " connection ", " connection " described in the application, unless otherwise instructed, include directly and
It is indirectly connected with (connection).In the description of the present application, it is to be understood that term " on ", "lower", "front", "rear", " left side ",
The orientation of the instructions such as " right side ", "vertical", "horizontal", "top", "bottom", "inner", "outside", " clockwise ", " counterclockwise " or position are closed
System indicates to be based on the orientation or positional relationship shown in the drawings, being merely for convenience of description the application and simplifying description
Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand
For the limitation to the application.
In this application unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
Referring to Figure 1, the present embodiment provides a kind of cable status assessment systems 10, for assessing the operating status of cable.
The cable status assessment system 10 summons device 200, power supply device 300 and data point to court including optical fiber pressure measuring unit 100, information
Analysis assessment device 400.
The optical fiber pressure measuring unit 100 is used to obtain the internal layer stress information of cable.In one embodiment, the optical fiber
Pressure measuring unit 100 includes laser emitter 110, optical splitter 120, the first coupler 130, outer difference detector 140, photodetector
150 and first amplifier 160.Further, the optical fiber pressure measuring unit 100 further includes pulse-modulator 180, the second coupler
181, light intensity modulator 182, phase-modulator 183 and optical filter 184.The optical fiber pressure measuring unit 100 further includes the first drive
Dynamic device 190, the second driver 191 and third driver 192.
The laser emitter 110 is a laser diode, emits light beam.Further, the light of the optical splitter 120
Input terminal is electrically connected with the laser pulse emission device 110 and signal is connect.Therefore, light beam is propagated forward along optical cable, passes through institute
Optical splitter 120 is stated, light beam is divided into two by the optical splitter 120.In one embodiment, the optical splitter 120 is 1/2 point
Light device.Further, first coupler 130 is connect with the electrical connection of the light output end of the optical splitter 120 and signal, and institute
State that pulse-modulator 180 is electrically connected with the optical splitter 120 and signal is connect.Therefore, after light beam is divided into two, wherein a branch of be
Local oscillator light enters first coupler 130, and first coupler 130 may be implemented local oscillator light and scatter the combining of light.Separately
It is a branch of that modulation light is become into second coupler 181 by the pulse-modulator 180.The pulse-modulator is used for will
Beam modulation is pulsed light.
Further, the variation of ply stress leads to the scattering of light in cable, and scattering light enters back into second coupler
181.Second coupler 180 is connect with the pulse-modulator 180, second coupler 180 be used for as modulation light and
Reflected light provides optical channel, does not interfere with each other two-way light.Further, the optical modulator 182 and second coupler 181
Electrical connection is connected with signal.And the phase-modulator 183 is electrically connected with the light intensity modulator 182 and signal is connect.It is described
The intensity of the adjustable reflected light of optical modulator 182, prevents from being distorted.Further, the optical filter 184 and the phase tune
Device 183 processed is electrically connected with first coupler 130 and connects with signal, and the optical filter 184 can filter stray light, makes anti-
Pulsed light after penetrating passes through.Enter described the by the optical filter 184 by the modulated light of the phase-modulator 183
One coupler 130.
Further, the outer difference detector 140 is electrically connected with first coupler 130 and signal is connect, therefore, this
Vibration light and scattering light enter the outer difference detector 140.It is poor that the outer difference detector 140 can be such that local oscillator light and reflected light makees,
Obtain detection light.Further, the photodetector 150 is connect with the outer electrical connection of difference detector 140 and signal, described
Photodetector 150 can convert optical signals to electric signal.Further, first amplifier 160 is visited with the photoelectricity
Device 150 is surveyed to connect with the transcriber 200 electrical connection with signal.First amplifier 160 can be by the photoelectricity
The electric signal that detector 150 transmits amplifies processing, and then is transferred to the transcriber 200.
First driver 190 is electrically connected with the pulse-modulator 180 and signal is connect, for controlling pulsed light
Pulsewidth.Second driver 191 is electrically connected with the light intensity modulator 182 and signal is connect, for controlling the strong of pulsed light
Degree.The third driver 192 is electrically connected with the light intensity modulator 183 and signal is connect, for controlling the phase of pulsed light.
The transcriber 200 is connect with 100 signal of optical fiber pressure measuring unit, for converting electrical signals to number
Word signal.Specifically, the transcriber 200 can for analog-digital converter or analog to digital conversion circuit or other
The device of digital signal can be converted electrical signals to, can specifically be selected according to actual needs, the application is without limitation.It is described
Transcriber 200 is connect with 100 signal of optical fiber pressure measuring unit, for converting electrical signals to digital signal.Specifically
, the transcriber 200 is electrically connected with first amplifier 160 and signal is connect, for receiving by described the
The amplified electric signal of one amplifier 160.
The power supply device 300 is electrically connected with the optical fiber pressure measuring unit 100 and the transcriber 200, is used for
Electric energy is provided for the optical fiber pressure measuring unit 100 and the transcriber 200.The power supply device 300 can be electric power storage
Pond, lithium battery or other kinds of battery, can specifically select according to actual needs, and the application is without limitation.
The data analysis assessment device 400 is connect with 200 signal of transcriber, for believing the number
Number carry out analysis assessment.The data analysis assessment device 400 can be central processing unit or other can carry out data point
The processor of analysis can specifically select according to actual needs, and the application is without limitation.In one embodiment, the data point
Analysis assessment device 400 can also include prewarning unit.The data analysis assessment device 400 can calculate answering for cable internal layer
Power and stress gradient mould.The data analysis assessment device 400 can analyze judge whether the stress of cable internal layer is more than perhaps
With stress, and judge whether stress gradient mould is more than stress gradient limit value, if being more than, carries out early warning.The data analysis
Assessment device 400 can also analyze stress gradient, if stress gradient is greater than preset value, early warning.
The cable status assessment system 10 provided in this embodiment, including the conversion of the optical fiber pressure measuring unit 100, information
Device 200, power supply device 300 and data analysis assessment device 400.The optical fiber pressure measuring unit 100 is for acquiring the interior of cable
Ply stress information.The transcriber 200 is connect with 100 signal of optical fiber pressure measuring unit, for believing the stress
Breath is converted to digital signal.The power supply device 300 is that the optical fiber pressure measuring unit 100 and the transcriber 200 mention
For electric energy.The data analysis assessment device 400 is connect with 200 signal of transcriber, for believing the number
Number carry out analysis assessment.The cable status assessment system 10 provided by the present application can use the method that optical fiber surveys pressure and obtain electricity
The stress information of cable internal layer.In turn, internal layer stress information under cable operating status is passed through institute by the optical fiber pressure measuring unit 100
It states transcriber 200 and is transmitted to the data analysis assessment device 400.Then, staff can be in real time from the data
Analysis assessment result is obtained on analysis assessment device 400, the analysis assessment result includes cable internal layer stress variation situation.Cause
This, staff can effectively assess the stress variation situation under cable operating status.
Fig. 2 is referred to, in one embodiment of the application, the cable status assessment system 10 further includes temperature acquisition
Device 500, the temperature collecting device 500 are used to acquire the running temperature of cable.The temperature collecting device 500 can be to set
The temperature sensor in cable surface is set, or the optical fiber temperature measuring sensor of cable internal layer is set, it specifically can be according to reality
It needs to select, the application is without limitation.The temperature collecting device 500 is electrically connected with the transcriber 200 and signal
The running temperature of cable is converted to electric signal transmission to the transcriber by connection, the temperature collecting device 500
200.The transcriber 200 is transmitted to the data analysis assessment device 400 after converting electrical signals to analog signal,
Assessment device 400 is analyzed by the data to be analyzed and processed.The data analysis assessment device 400 can be to the operation of cable
Temperature carries out early warning, if cable operating temperature is more than preset temperature, early warning.If the current-carrying capacity of cable is more than default current-carrying capacity,
Then early warning.
In addition to this, the data analysis assessment device 400 can also analyze cable overload limit time t1If t1Greatly
In preset time, then early warning, if t1No more than preset time, then the current-carrying capacity of cable is recalculated.The data analysis assessment
Device 400 can also analyze the excessive limit time t of stress gradient of cable2.If t2Greater than preset time, then early warning.If t2No
Greater than preset time, then stress gradient is recalculated.If the data analysis assessment device 400 sentences cable operating status
It has no progeny, no early warning then judges cable operating status to be excellent.If there is an early warning, judge cable operating status to be good.If same
When there are two early warning, then judge that cable operating status is.If occurring three or more early warning simultaneously, judge that cable runs shape
State is poor.
In one embodiment of the application, the temperature collecting device 500 includes laser pulse emission device 510, optocoupler
Clutch 520, light splitting filter 530, photoelectric converter 530 and the second amplifier 550.
The laser pulse emission device 510 is electrically connected with the power supply device 300.The laser pulse emission device 510 is used
In sending light pulse.The photo-coupler 520 is electrically connected with the laser pulse emission device 510 and signal is connect, the laser
The light pulse that impulse sender 510 issues is transmitted by the photo-coupler 520, and then along spread fiber.Pulsed light is in cable
Every bit when middle propagation can all generate reflected light, if the temperature of cable internal layer certain point is bigger, the reflected light of this point
Intensity is bigger.Further, the light splitting filter 530 is electrically connected with the photo-coupler 520 and signal is connect, reflected light warp
The photo-coupler 520 is transmitted to the light splitting filter 530, by it is described light splitting filter 530 carry out wavelength select and mistake
Filter.The photoelectric converter 540 is electrically connected with the light splitting filter 530 and signal is connect, and the photoelectric converter 540 is used for
Convert optical signals to electric signal.Second amplifier 550 simultaneously with the photoelectric converter 540 and the information converting means
It sets 200 electrical connections to connect with signal, second amplifier 550 is for amplifying electric signal.Second amplifier 550 will be electric
Signal is transmitted to the transcriber 200, and the transcriber 200 converts electrical signals to digital signal, in turn
Assessment device 400 is analyzed by the data to be analyzed and processed.
The temperature collecting device 500 can detect the running temperature of cable internal layer, therefore the result detected is more
To be accurate, precisely.And when cable is in moist or hot weather, weather acquires shadow to the data of temperature collecting device 500
Sound is smaller, influences on the accuracy of the temperature collecting device 500 measurement small.
Referring to Figure 1, in one embodiment of the application, the cable status assessment system further includes display device
700.The display device 700 is analyzed assessment 400 signal of device with the data and is connect, for showing the operating status of cable.
The operating status of the cable includes temperature when interior ply stress and cable of the cable in operating status are run.At one
In embodiment, the display device 700 is liquid crystal display.It is understood that the display device 700 can also be other
The display of type can specifically select according to actual needs, and the application is without limitation.The display device 700 can help
Staff more intuitively observes the operating status of cable, and the staff that is more convenient for grasps cable operation conditions.
In one embodiment of the application, the cable status assessment system 10 further includes storage device 800, described to deposit
Storage device 800 is analyzed assessment 400 signal of device with the data and is connect.In one embodiment, the storage device 800 is to deposit
Reservoir.The storage device 800 can be external memory, or be arranged in the data analysis assessment device 400
Memory can specifically select according to actual needs, and the application is without limitation.The storage device 800 can store cable
Ply stress, stress gradient mould in running temperature, cable.Staff can be by the data on the storage device 800 to electricity
The operation data of cable is arranged, therefore the storage device 800 can help staff to carry out better data analysis.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The several embodiments of the application above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
The limitation to claim therefore cannot be interpreted as.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the concept of this application, various modifications and improvements can be made, these belong to the protection of the application
Range.Therefore, the scope of protection shall be subject to the appended claims for the application patent.
Claims (11)
1. a kind of cable status assessment system, for assessing the operating status of cable characterized by comprising
Optical fiber pressure measuring unit (100), for obtaining the internal layer stress information of cable；
Transcriber (200) is connect, for converting electrical signals to number with optical fiber pressure measuring unit (100) signal
Signal；
Power supply device (300) is electrically connected with the optical fiber pressure measuring unit (100) and the transcriber (200)；
Data analysis assessment device (400), connect with the transcriber (200) signal, for the digital signal
Carry out analysis assessment.
2. cable status assessment system as described in claim 1, which is characterized in that the optical fiber pressure measuring unit (100) includes:
Laser emitter (110)；
The light input end of optical splitter (120), the optical splitter (120) is electrically connected with the laser emitter (110) and signal connects
It connects；
First coupler (130) is connect with the electrical connection of the light output end of the optical splitter (120) and signal；
Outer difference detector (140) connect with first coupler (130) electrical connection and signal；
Photodetector (150) is connect with outer difference detector (140) electrical connection and signal；
First amplifier (160), with the photodetector (150) and the transcriber (200) is electrically connected and signal
Connection.
3. cable status assessment system as claimed in claim 2, which is characterized in that the optical fiber pressure measuring unit (100) is also wrapped
It includes:
Pulse-modulator (180) is connect with the optical splitter (120) electrical connection and signal；
Second coupler (181) is connect with the pulse-modulator (180) electrical connection and signal.
4. cable status assessment system as claimed in claim 3, which is characterized in that the pulse-modulator (180) includes:
Light intensity modulator (182) is connect with second coupler (181) electrical connection and signal；
Phase-modulator (183) is connect with the light intensity modulator (182) electrical connection and signal.
5. cable status assessment system as claimed in claim 4, which is characterized in that the optical fiber pressure measuring unit (100) is also wrapped
It includes:
Optical filter (184) is connect with the phase-modulator (183) and first coupler (130) electrical connection and signal.
6. cable status assessment system as claimed in claim 4, which is characterized in that the optical fiber pressure measuring unit (100) is also wrapped
It includes:
First driver (190) is connect with the pulse-modulator (180) electrical connection and signal；
Second driver (191) is connect with the light intensity modulator (182) electrical connection and signal；
Third driver (192) is connect with the phase-modulator (183) electrical connection and signal.
7. cable status assessment system as described in claim 1, which is characterized in that further include:
Temperature collecting device (500) is connect with the transcriber (200) electrical connection and signal, the temperature acquisition dress
(500) are set for acquiring the running temperature of cable.
8. cable status assessment system as claimed in claim 7, which is characterized in that the temperature collecting device (500) includes:
Laser pulse emission device (510)；
Photo-coupler (520) is connect with the laser pulse emission device (510) electrical connection and signal；
It is divided filter (530), is connect with the photo-coupler (520) electrical connection and signal；
Photoelectric converter (540) is connect with the light splitting filter (530) electrical connection and signal；
Second amplifier (550), at the same be electrically connected with the photoelectric converter (540) and the transcriber (200) and
Signal connection.
9. cable status assessment system as claimed in any one of claims 1 to 8, which is characterized in that further include:
Display device (700) is analyzed assessment device (400) signal with the data and is connect.
10. cable status assessment system as claimed in claim 9, which is characterized in that further include:
Storage device (800) is analyzed assessment device (400) signal with the data and is connect.
11. cable status assessment system as claimed in claim 10, which is characterized in that the storage device (800) is storage
Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910251844.6A CN109855778A (en) | 2019-03-29 | 2019-03-29 | cable state evaluation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910251844.6A CN109855778A (en) | 2019-03-29 | 2019-03-29 | cable state evaluation system |
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| Publication Number | Publication Date |
|---|---|
| CN109855778A true CN109855778A (en) | 2019-06-07 |
Family
ID=66902607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910251844.6A Pending CN109855778A (en) | 2019-03-29 | 2019-03-29 | cable state evaluation system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112833952A (en) * | 2021-01-07 | 2021-05-25 | 国网浙江省电力有限公司舟山供电公司 | Method and system for monitoring and evaluating real-time running state of shore power cable |
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| JPH06102140A (en) * | 1992-09-17 | 1994-04-15 | Nippon Telegr & Teleph Corp <Ntt> | Measurement of strain distribution of optical cable due to laying |
| US20090304322A1 (en) * | 2008-06-06 | 2009-12-10 | Schlumberger Technology Corporation | Distributed vibration sensing system using multimode fiber |
| CN102384799A (en) * | 2011-09-29 | 2012-03-21 | 国电南京自动化股份有限公司 | Frequency sweeping and data processing method based on Brillouin distributed fiber sensing system correlation detection scheme |
| CN103499768A (en) * | 2013-07-03 | 2014-01-08 | 甘肃省电力公司兰州供电公司 | Power cable real-time state monitoring and operation management system and measuring method of temperature of cable |
| CN204535884U (en) * | 2015-03-17 | 2015-08-05 | 广西电网有限责任公司来宾供电局 | A kind of cable temperature monitoring system based on Raman distributing optical fiber sensing |
| CN209745445U (en) * | 2019-03-29 | 2019-12-06 | 深圳供电局有限公司 | Cable state evaluation system |
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2019
- 2019-03-29 CN CN201910251844.6A patent/CN109855778A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06102140A (en) * | 1992-09-17 | 1994-04-15 | Nippon Telegr & Teleph Corp <Ntt> | Measurement of strain distribution of optical cable due to laying |
| US20090304322A1 (en) * | 2008-06-06 | 2009-12-10 | Schlumberger Technology Corporation | Distributed vibration sensing system using multimode fiber |
| CN102384799A (en) * | 2011-09-29 | 2012-03-21 | 国电南京自动化股份有限公司 | Frequency sweeping and data processing method based on Brillouin distributed fiber sensing system correlation detection scheme |
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| CN112833952A (en) * | 2021-01-07 | 2021-05-25 | 国网浙江省电力有限公司舟山供电公司 | Method and system for monitoring and evaluating real-time running state of shore power cable |
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