CN106970564A - A kind of cable shaft ditch on-line monitoring system and method - Google Patents
A kind of cable shaft ditch on-line monitoring system and method Download PDFInfo
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- CN106970564A CN106970564A CN201710267559.4A CN201710267559A CN106970564A CN 106970564 A CN106970564 A CN 106970564A CN 201710267559 A CN201710267559 A CN 201710267559A CN 106970564 A CN106970564 A CN 106970564A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0428—Safety, monitoring
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24024—Safety, surveillance
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
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Abstract
The invention discloses a kind of cable shaft ditch on-line monitoring system and method, including central processing unit, optic fiber thermometer, signal processing of partial discharge device, temperature measurement data collector, RS485 intelligence instruments, data acquisition unit, A/D converting units, warning device, for the blower fan taken a breath to cable shaft ditch, water pump, local discharge sensor, temperature sensing optical fiber, thermometric transmitter, gas detector, water level detector and ambient temperature and humidity detector, the system and method monitors the temperature of cable in cable shaft ditch automatically, the layout discharge signal and temperature of cable interface, and the temperature in cable shaft ditch, combustable gas concentration and environment temperature, automatically controlling for temperature and water in cable shaft ditch is realized simultaneously.
Description
Technical field
The invention belongs to cable shaft ditch monitoring technical field, it is related to a kind of cable shaft ditch on-line monitoring system and method.
Background technology
Accelerate as scale of urbanization expands construction speed, corresponding city affiliated facility construction is equally quickly grown, electricity
Power cable power supply network is also able to fast development, and underground supply network in large scale, cable distribution is numerous, how to develop simultaneously
To power department cable running safety, accident prevention also proposes requirements at the higher level.Current national most of Utilities Electric Co.s are the same, to electricity
The management of main cable is also in the scheduled overhaul stage in power tunnel, raceway groove, and the general method using periodical inspection is to cable
Operation conditions is checked.Economically with for technical standpoint, scheduled overhaul has significant limitation, for example periodically examination
Test and overhaul and cause very big directly or indirectly economic waste, many insulation defects and potential failure can not be found in time.
In the park of the Chongqing Jiangbei great favor temple on the 22nd of August in 2016, from descending 300 meters or so of north gate, a cable shaft ditch catches fire, and causes
Power breakdown, electricity consumption to people more than 30,000 causes serious influence.With the increasing year by year of State Grid's infrastructure input
Greatly, the length of electric power tunnel is also increasing sharply, because the growth rate of operation maintenance personnel does not catch up with electric power basis much
The growth rate of facility, causes electric power tunnel operation work to be faced with immense pressure, furthermore with the accelerated development in city, electric power
Raceway groove and high pressure line increased rapidly, and electric load is sharply increased, and operation maintenance work of the Utilities Electric Co. to tunnel faces
Immense pressure.Operation security incident situations such as how ensureing tunnel inner cable not because of overload, overheat happens suddenly big, tunnel inner product
Water, combustable gas concentration etc. do not interfere with the new requirements such as the safety of electric power system, want the variety of problems for solving currently to face, only
It is unrealistic with government pressure to tackle increasing rapidly for electric power tunnel by substantial increase operations staff's quantity, using modernization
Technological means come to improve electric power tunnel operation and maintenance level be the task of top priority.
The content of the invention
It is an object of the invention to the shortcoming for overcoming above-mentioned prior art, there is provided a kind of cable shaft ditch on-line monitoring system
And method, the system and method monitor automatically the temperature of cable in cable shaft ditch, the partial discharge electric signal of cable interface and temperature, with
And temperature, combustable gas concentration and environment temperature in cable shaft ditch, while realizing the automatic control of temperature and water in cable shaft ditch
System.
To reach above-mentioned purpose, cable shaft ditch on-line monitoring system of the present invention includes central processing unit, optical fiber and surveyed
Wen Yi, signal processing of partial discharge device, temperature measurement data collector, RS485 intelligence instruments, data acquisition unit, A/D conversions are single
Member, warning device, for the blower fan taken a breath to cable shaft ditch, the water pump of water for extracting cable shaft ditch bottom, be used for
Detect the local discharge sensor of the local discharge signal of cable interface in cable shaft ditch, for detecting cable temperature in cable shaft ditch
The temperature sensing optical fiber of degree, the thermometric transmitter for detecting cable shaft ditch middle cable connector temperature, for detect can in cable shaft ditch
The gas detector of combustion gas bulk concentration, the water level detector for detecting cable shaft ditch bottom water level and for detecting cable shaft ditch
The ambient temperature and humidity detector of middle temperature；
Temperature sensing optical fiber is connected by optic fiber thermometer with central processing unit, and the output end of local discharge sensor is through part
Discharge signal processor is connected with central processing unit, the output end of thermometric transmitter successively through temperature measurement data collector and
RS485 intelligence instruments and central processing unit are connected, the input of data acquisition unit and the output end of gas detector, water level
The output end of detector and the output end of ambient temperature and humidity detector are connected, data acquisition unit by A/D converting units with
Central processing unit is connected, and the output end of central processing unit passes through the control end of driver element and warning device, the control of blower fan
The control end of end and water pump is connected, and work station is connected with central processing unit.
Signal processing of partial discharge device is connected through optical transmitter and receiver and interchanger with central processing unit successively.
Also include remote terminal, central processing unit is connected by radio communication unit with remote terminal.
Central processing unit is connected with print unit.
It is connected between optic fiber thermometer and central processing unit by LAN.
The water level detector is dry-reed duckbilled or floating ball sensor.
Cable shaft ditch on-line monitoring method of the present invention comprises the following steps：
The local discharge signal of cable interface in local discharge sensor monitoring cable shaft ditch, and by the cable interface
Local discharge signal is filtered, amplified and peakvalue's checking successively by signal processing of partial discharge device, is retransmited to centre
Manage in device, central processing unit sends the local discharge signal of cable interface into work station, and work station shows that the cable connects
The partial discharge electric signal of mouth；
Temperature measurement data collector monitors the temperature information of cable shaft ditch middle cable connector by thermometric transmitter in real time, and will
The temperature information of cable shaft ditch middle cable connector is sent into central processing unit through RS485 intelligence instruments, and central processing unit is by institute
The temperature information for stating cable shaft ditch middle cable connector is sent into work station, and work station shows cable shaft ditch middle cable connector in real time
Temperature information；
Optic fiber thermometer monitors the temperature information of cable in cable shaft ditch by temperature sensing optical fiber in real time, and by cable shaft ditch
The temperature information of cable is sent into central processing unit, and central processing unit sends the temperature information of cable in the cable shaft ditch
Into work station, work station shows the temperature information of cable in cable shaft ditch；
Data acquisition unit gathers the concentration information of fuel gas in cable shaft ditch by gas detector in real time, and by electricity
The concentration information of fuel gas is sent into central processing unit in cable well ditch, and central processing unit is by combustible gas in the cable shaft ditch
The concentration information of body is sent into work station, and work station is stored to the concentration information of fuel gas in cable shaft ditch, and is worked as
When the concentration of fuel gas is more than or equal to the default density in cable shaft ditch, then the first drive signal is produced, and by described first
Drive signal is sent into central processing unit, and central processing unit drives blower fan according to first drive signal by driver element
Work, the ventilation of cable shaft ditch is realized by blower fan；
Data acquisition unit gathers the water level information of cable shaft ditch bottom water by water level detector in real time, and by cable shaft
The water level information of ditch bottom water is sent into central processing unit, and central processing unit is by the water level information of the cable shaft ditch bottom water
Send into work station, work station is stored to the water level information of cable shaft ditch bottom water, and when cable shaft ditch bottom water
When water level is more than or equal to preset water level value, then the second drive signal is produced, and second drive signal is sent to centre
Manage in device, central processing unit drives pump working according to second drive signal by driver element, and water pump extracts cable shaft
Water in ditch；
The temperature information and humidity that data acquisition unit is gathered in cable shaft ditch in real time by ambient temperature and humidity detector are believed
Breath, and the temperature information and humidity information in cable shaft ditch is sent into central processing unit, and central processing unit is by the cable
Temperature information and humidity information in well ditch are sent into work station, and work station is believed the temperature information in cable shaft ditch and humidity
Breath is stored, and the temperature in the cable shaft ditch is more than or equal to preset temperature value or when the humidity in cable shaft ditch is more than etc.
When default humidity value, then the 3rd drive signal is produced, and the 3rd drive signal is sent into central processing unit, center
Processor drives warning device to work according to the 3rd drive signal by driver element, is realized and alarmed by warning device.
The invention has the advantages that：
Cable shaft ditch on-line monitoring system of the present invention and method pass through local discharge sensor in concrete operations
The local discharge signal of cable interface in cable shaft ditch is detected, passes through the temperature of thermometric transmitters sense cable shaft ditch middle cable connector
Information is spent, the temperature information of cable in cable shaft ditch is detected by temperature sensing optical fiber, is detected by gas detector in cable shaft ditch
The concentration information of fuel gas, the temperature information and humidity information in cable shaft ditch is gathered by ambient temperature and humidity detector, so
The obtained each information of detection is shown by work station afterwards, the temperature of cable in automatic monitoring cable shaft ditch, cable interface is realized
The purpose of partial discharge electric signal and temperature and humidity in cable shaft ditch, combustable gas concentration and environment temperature.In addition, work
The combustable gas concentration in cable shaft ditch of standing automatically controls blower fan, realizes the automatic tune to fuel gas in cable shaft ditch
Section, work station realizes the automatic extraction to cable shaft ditch reclaimed water, operation according to the water level automatically controlled water pump of cable shaft ditch reclaimed water
Simply, conveniently, comprehensively cable shaft ditch can be monitored, automaticity is higher, convenient for installation and maintenance, and cost is low, can
It is higher by property, it can effectively improve electric power tunnel running environment, it is ensured that the safety of power cable is steady in electric power tunnel and tunnel
Fixed operation.
Brief description of the drawings
Fig. 1 is schematic diagram of the invention.
Wherein, 1 it is cable interface, 2 be local discharge sensor, 3 be signal processing of partial discharge device, 4 is optical transmitter and receiver, 5
It is central processing unit for interchanger, 6,7 be RS485 intelligence instruments, 8 be temperature measurement data collector, 9 be thermometric transmitter, 10 is
LAN, 11 be optic fiber thermometer, 12 be temperature sensing optical fiber, 13 be A/D converting units, 14 be data acquisition unit, 15 be gas
Detector, 16 be water level detector, 17 be ambient temperature and humidity detector, 18 be work station, 19 be radio communication unit, 20 be remote
Journey terminal, 21 be print unit, 22 be driver element, 23 be warning device, 24 be blower fan, 25 be water pump.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings：
With reference to Fig. 1, cable shaft ditch on-line monitoring system of the present invention include central processing unit 6, optic fiber thermometer 11,
Signal processing of partial discharge device 3, temperature measurement data collector 8, RS485 intelligence instruments 7, data acquisition unit 14, A/D converting units
13rd, warning device 23, blower fan 24, the water pump of water for extracting cable shaft ditch bottom for being taken a breath to cable shaft ditch
25th, for detecting the local discharge sensor 2 of the local discharge signal of cable interface 1 in cable shaft ditch, for detecting cable shaft
The temperature sensing optical fiber 12 of the temperature of cable 1, the thermometric transmitter 9 for detecting cable shaft ditch middle cable connector temperature in ditch, for examining
Survey gas detector 15, the water level detector 16 for detecting cable shaft ditch bottom water level of combustable gas concentration in cable shaft ditch
And for detecting the ambient temperature and humidity detector 17 of temperature in cable shaft ditch；Temperature sensing optical fiber 12 passes through optic fiber thermometer 11 and center
Processor 6 is connected, and the output end of local discharge sensor 2 is connected through signal processing of partial discharge device 3 with central processing unit 6
Connect, the output end of thermometric transmitter 9 is connected through temperature measurement data collector 8 and RS485 intelligence instruments 7 and central processing unit 6 successively
Connect, the input of data acquisition unit 14 and the output end of gas detector 15, the output end of water level detector 16 and environment temperature
The output end of moisture detector 17 is connected, and data acquisition unit 14 is connected by A/D converting units 13 with central processing unit 6
Connect, the output end of central processing unit 6 passes through driver element 22 and control end, the control end of blower fan 24 and the water pump of warning device 23
25 control end is connected, and work station 18 is connected with central processing unit 6.
Signal processing of partial discharge device 3 is connected through optical transmitter and receiver 4 and interchanger 5 with central processing unit 6 successively；The present invention is also
Including remote terminal 20, central processing unit 6 is connected by radio communication unit 19 with remote terminal 20；Central processing unit 6 connects
It is connected to print unit 21；It is connected between optic fiber thermometer 11 and central processing unit 6 by LAN 10；The water level detector
16 be dry-reed duckbilled or floating ball sensor.
Cable shaft ditch on-line monitoring method of the present invention comprises the following steps：
The local discharge signal of cable interface 1 in the monitoring cable shaft ditch of local discharge sensor 2, and by the cable interface
1 local discharge signal is filtered, amplified and peakvalue's checking successively by signal processing of partial discharge device 3, is retransmited into
In central processor 6, central processing unit 6 sends the local discharge signal of cable interface 1 into work station 18, and work station 18 is shown
The layout discharge signal of the cable interface 1；
Temperature measurement data collector 8 is by the temperature information of cable in thermometric transmitter 9 in real time monitoring cable shaft ditch, and by electricity
The temperature information of cable well ditch middle cable connector is sent into central processing unit 6 through RS485 intelligence instruments 7, and central processing unit 6 is by institute
The temperature information for stating cable shaft ditch middle cable connector is sent into work station 18, and work station 18 shows cable in cable shaft ditch in real time
The temperature information of joint；
Optic fiber thermometer 11 is by the temperature information of cable 1 in temperature sensing optical fiber 12 in real time monitoring cable shaft ditch, and by cable
The temperature information of cable 1 is sent into central processing unit 6 in well ditch, and central processing unit 6 is by the temperature of cable 1 in the cable shaft ditch
Degree information is sent into work station 18, and work station 18 shows the temperature information of cable 1 in cable shaft ditch；
Data acquisition unit 14 gathers the concentration information of fuel gas in cable shaft ditch by gas detector 15 in real time, and
The concentration information of fuel gas in cable shaft ditch is sent into central processing unit 6, central processing unit 6 is by the cable shaft ditch
The concentration information of fuel gas is sent into work station 18, and work station 18 is carried out to the concentration information of fuel gas in cable shaft ditch
Storage, and when the concentration of fuel gas in cable shaft ditch is more than or equal to the default density, then the first drive signal is produced, and will
First drive signal is sent into central processing unit 6, and central processing unit 6 is single by driving according to first drive signal
Member 22 drives blower fan 24 to work, and the ventilation of cable shaft ditch is realized by blower fan 24；
Data acquisition unit 14 is by the water level information of the collection cable shaft ditch bottom water in real time of water level detector 16, and by electricity
The water level information of cable well ditch bottom water is sent into central processing unit 6, and central processing unit 6 is by the water of the cable shaft ditch bottom water
Position information is sent into work station 18, and work station 18 is stored to the water level information of cable shaft ditch bottom water, and works as cable shaft
When the water level of ditch bottom water is more than or equal to preset water level value, then the second drive signal is produced, and second drive signal is sent out
Deliver in central processing unit 6, central processing unit 6 drives the work of water pump 25 according to second drive signal by driver element 22
Make, water pump 25 extracts the water in cable shaft ditch；
Data acquisition unit 14 passes through the temperature information and wet in ambient temperature and humidity detector 17 in real time collection cable shaft ditch
Information is spent, and the temperature information and humidity information in cable shaft ditch are sent into central processing unit 6, central processing unit 6 is by institute
The temperature information and humidity information stated in cable shaft ditch are sent into work station 18, and work station 18 is believed the temperature in cable shaft ditch
Breath and humidity information are stored, and when the temperature in cable shaft ditch is more than or equal to preset temperature value or when in cable shaft ditch
When temperature is more than or equal to default humidity value, then the 3rd drive signal is produced, and the 3rd drive signal is sent to centre
Manage in device 6, central processing unit 6 drives warning device 23 to work according to the 3rd drive signal by driver element 22, passes through
Warning device 23 realizes alarm.
Wherein, the water level detector 16 is dry-reed duckbilled or floating ball sensor, and dry-reed duckbilled or ball float are passed
Sensor can adapt to various complex water level environment, and the ambient temperature and humidity detector 17 is AM series sensors, AM series of sensor
Device can be monitored effectively in real time to the environment temperature and humidity that equipment is run, and upload valid data.
The control print unit 21 of work station 18 is monitored the printing of data, while work station 18 passes through central processing unit 6
And radio communication unit 19 sends the data that monitoring is obtained to remote terminal 20.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (7)
1. a kind of cable shaft ditch on-line monitoring system, it is characterised in that including central processing unit (6), optic fiber thermometer (11), office
Portion's discharge signal processor (3), temperature measurement data collector (8), RS485 intelligence instruments (7), data acquisition unit (14), A/D turn
Change unit (13), warning device (23), for cable shaft ditch is taken a breath blower fan (24), for extracting cable shaft ditch bottom
Water water pump (25), the local discharge sensor for detecting the local discharge signal of cable interface (1) in cable shaft ditch
(2), for detecting the temperature sensing optical fiber (12) of cable (1) temperature in cable shaft ditch, for detecting cable shaft ditch middle cable connector temperature
The thermometric transmitter (9) of degree, the gas detector (15) for detecting combustable gas concentration in cable shaft ditch, for detecting cable
The water level detector (16) of well ditch bottom water level and the ambient temperature and humidity detector (17) for detecting temperature in cable shaft ditch；
Temperature sensing optical fiber (12) is connected by optic fiber thermometer (11) with central processing unit (6), local discharge sensor (2) it is defeated
Go out end through signal processing of partial discharge device (3) with central processing unit (6) to be connected, the output end of thermometric transmitter (9) is passed through successively
Temperature measurement data collector (8) and RS485 intelligence instruments (7) and central processing unit (6) are connected, data acquisition unit (14) it is defeated
Enter and hold defeated with the output end, the output end of water level detector (16) and ambient temperature and humidity detector (17) of gas detector (15)
Go out end to be connected, data acquisition unit (14) is connected by A/D converting units (13) with central processing unit (6), center processing
The output end of device (6) passes through driver element (22) and control end, the control end of blower fan (24) and the water pump of warning device (23)
(25) control end is connected, and work station (18) is connected with central processing unit (6).
2. cable shaft ditch on-line monitoring system according to claim 1, it is characterised in that signal processing of partial discharge device
(3) it is connected successively through optical transmitter and receiver (4) and interchanger (5) with central processing unit (6).
3. cable shaft ditch on-line monitoring system according to claim 1, it is characterised in that also including remote terminal (20),
Central processing unit (6) is connected by radio communication unit (19) with remote terminal (20).
4. cable shaft ditch on-line monitoring system according to claim 1, it is characterised in that central processing unit (6) is connected with
Print unit (21).
5. cable shaft ditch on-line monitoring system according to claim 1, it is characterised in that optic fiber thermometer (11) and center
It is connected between processor (6) by LAN (10).
6. cable shaft ditch on-line monitoring system according to claim 1, it is characterised in that the water level detector (16) is
Dry-reed duckbilled or floating ball sensor.
7. a kind of cable shaft ditch on-line monitoring method, it is characterised in that based on the cable shaft ditch on-line monitoring described in claim 1
System, comprises the following steps：
The local discharge signal of cable interface (1) in local discharge sensor (2) monitoring cable shaft ditch, and by the cable interface
(1) local discharge signal is filtered, amplified and peakvalue's checking successively by signal processing of partial discharge device (3), is retransmited
Into central processing unit (6), central processing unit (6) sends the local discharge signal of cable interface (1) into work station (18),
Work station (18) shows the layout discharge signal of the cable interface (1)；
Temperature measurement data collector (8) monitors the temperature information of cable shaft ditch middle cable connector by thermometric transmitter (9) in real time, and
The temperature information of cable shaft ditch middle cable connector is sent into central processing unit (6) through RS485 intelligence instruments (7), centre
Reason device (6) sends the temperature information of the cable shaft ditch middle cable connector into work station (18), and work station (18) is aobvious in real time
Show the temperature information of cable shaft ditch middle cable connector；
Optic fiber thermometer (11) is by the temperature information of cable (1) in temperature sensing optical fiber (12) in real time monitoring cable shaft ditch, and by electricity
The temperature information of cable (1) is sent into central processing unit (6) in cable well ditch, and central processing unit (6) is by the cable shaft ditch
The temperature information of cable (1) is sent into work station (18), and work station (18) shows the temperature letter of cable (1) in cable shaft ditch
Breath；
Data acquisition unit (14) gathers the concentration information of fuel gas in cable shaft ditch by gas detector (15) in real time, and
The concentration information of fuel gas in cable shaft ditch is sent into central processing unit (6), central processing unit (6) is by the cable shaft
The concentration information of fuel gas is sent into work station (18) in ditch, concentration of the work station (18) to fuel gas in cable shaft ditch
Information is stored, and when the concentration of fuel gas in cable shaft ditch is more than or equal to the default density, is then produced first and driven
Signal, and first drive signal is sent into central processing unit (6), central processing unit (6) is according to the described first driving
Signal drives blower fan (24) to work by driver element (22), and the ventilation of cable shaft ditch is realized by blower fan (24)；
Data acquisition unit (14) is by the water level information of water level detector (16) collection cable shaft ditch bottom water in real time, and by electricity
The water level information of cable well ditch bottom water is sent into central processing unit (6), and central processing unit (6) is by the cable shaft ditch bottom water
Water level information send into work station (18), work station (18) is stored to the water level information of cable shaft ditch bottom water, and
When the water level of cable shaft ditch bottom water is more than or equal to preset water level value, then the second drive signal is produced, and described second is driven
Dynamic signal is sent into central processing unit (6), and central processing unit (6) passes through driver element (22) according to second drive signal
Water pump (25) work is driven, water pump (25) extracts the water in cable shaft ditch；
Data acquisition unit (14) passes through the temperature information and wet in ambient temperature and humidity detector (17) in real time collection cable shaft ditch
Information is spent, and the temperature information and humidity information in cable shaft ditch are sent into central processing unit (6), central processing unit (6)
Temperature information and humidity information in the cable shaft ditch is sent into work station (18), work station (18) is in cable shaft ditch
Temperature information and humidity information stored, and the temperature in the cable shaft ditch is more than or equal to preset temperature value or works as cable
When temperature in well ditch is more than or equal to default humidity value, then the 3rd drive signal is produced, and the 3rd drive signal is sent
Into central processing unit (6), central processing unit (6) passes through driver element (22) driving alarm dress according to the 3rd drive signal
(23) work is put, is realized and alarmed by warning device (23).
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| CN201710267559.4A CN106970564B (en) | 2017-04-21 | 2017-04-21 | A kind of cable shaft ditch on-line monitoring system and method |
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| CN201710267559.4A CN106970564B (en) | 2017-04-21 | 2017-04-21 | A kind of cable shaft ditch on-line monitoring system and method |
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| CN108680827A (en) * | 2018-05-17 | 2018-10-19 | 西安交通大学 | Cable overheats monitoring device and its monitoring method |
| CN109038421A (en) * | 2018-09-13 | 2018-12-18 | 国家电网有限公司 | A kind of comprehensive wiring slot box and its working method for monitoring function on-line |
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|---|---|---|---|---|
| CN107588863A (en) * | 2017-08-08 | 2018-01-16 | 安徽博诺思信息科技有限公司 | A kind of cable shaft system for detecting temperature and method |
| CN108680827A (en) * | 2018-05-17 | 2018-10-19 | 西安交通大学 | Cable overheats monitoring device and its monitoring method |
| CN109038421A (en) * | 2018-09-13 | 2018-12-18 | 国家电网有限公司 | A kind of comprehensive wiring slot box and its working method for monitoring function on-line |
| CN109884486A (en) * | 2019-03-29 | 2019-06-14 | 山东呈祥电气有限公司 | A kind of cable channel on-line measuring device |
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| Publication number | Publication date |
|---|---|
| CN106970564B (en) | 2018-08-31 |
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