CN114705959A - Power cable and channel on-line monitoring system - Google Patents
Power cable and channel on-line monitoring system Download PDFInfo
- Publication number
- CN114705959A CN114705959A CN202210359163.3A CN202210359163A CN114705959A CN 114705959 A CN114705959 A CN 114705959A CN 202210359163 A CN202210359163 A CN 202210359163A CN 114705959 A CN114705959 A CN 114705959A
- Authority
- CN
- China
- Prior art keywords
- monitoring
- cable
- channel
- fire
- signal
- 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.)
- Pending
Links
- 238000012544 monitoring process Methods 0.000 title claims abstract description 225
- 238000004891 communication Methods 0.000 claims abstract description 49
- 239000013307 optical fiber Substances 0.000 claims abstract description 31
- 230000005540 biological transmission Effects 0.000 claims abstract description 28
- 238000007689 inspection Methods 0.000 claims abstract description 24
- 238000012423 maintenance Methods 0.000 claims abstract description 16
- 230000007613 environmental effect Effects 0.000 claims abstract description 6
- 230000002452 interceptive effect Effects 0.000 claims abstract description 5
- 238000012806 monitoring device Methods 0.000 claims description 83
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 43
- 239000007789 gas Substances 0.000 claims description 27
- 239000000843 powder Substances 0.000 claims description 19
- 230000001133 acceleration Effects 0.000 claims description 15
- 238000010276 construction Methods 0.000 claims description 12
- 230000003287 optical effect Effects 0.000 claims description 12
- 238000003860 storage Methods 0.000 claims description 11
- 230000002265 prevention Effects 0.000 claims description 10
- 238000009423 ventilation Methods 0.000 claims description 10
- 230000006399 behavior Effects 0.000 claims description 9
- 238000009529 body temperature measurement Methods 0.000 claims description 8
- 230000002159 abnormal effect Effects 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 claims description 6
- 239000000835 fiber Substances 0.000 claims description 6
- 230000007774 longterm Effects 0.000 claims description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 6
- 230000007480 spreading Effects 0.000 claims description 5
- 231100000331 toxic Toxicity 0.000 claims description 4
- 230000002588 toxic effect Effects 0.000 claims description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 3
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 229910000037 hydrogen sulfide Inorganic materials 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 230000007257 malfunction Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 claims description 3
- 230000004297 night vision Effects 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 238000001931 thermography Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000009825 accumulation Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 210000001367 artery Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
- G01R31/1263—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation
- G01R31/1272—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation of cable, line or wire insulation, e.g. using partial discharge measurements
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/36—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device
- A62C37/38—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone
- A62C37/40—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone with electric connection between sensor and actuator
-
- 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
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/12—Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions
- G08B17/125—Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions by using a video camera to detect fire or smoke
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B19/00—Alarms responsive to two or more different undesired or abnormal conditions, e.g. burglary and fire, abnormal temperature and abnormal rate of flow
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
Landscapes
- Business, Economics & Management (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Computer Networks & Wireless Communication (AREA)
- Medical Informatics (AREA)
- General Health & Medical Sciences (AREA)
- Computing Systems (AREA)
- Alarm Systems (AREA)
Abstract
The invention discloses an on-line monitoring system for a power cable and a channel, which consists of a monitoring master station, monitoring substations and monitoring function modules, wherein the monitoring master station is arranged in a cable transportation and inspection room of a transportation and inspection part of a power supply company, the monitoring substations are arranged in a transformer substation communication machine room or a relay protection room close to the power cable and the channel, the monitoring function modules are distributed on the power cable and the channel, the monitoring master station and the monitoring substations adopt the conventional 100/1000M power Ethernt network which meets the DL/T860 standard of the power supply company for data interactive transmission, the monitoring function modules and the monitoring substations perform signal data transmission through one of a field industrial control bus, an optical fiber bus or a wireless network, and the monitoring function modules comprise an environment monitoring system in a cable channel and a power cable body monitoring system; the monitoring system has the characteristics of monitoring the running of the high-voltage power cable body and the environmental conditions in the cable channel in real time and providing technical support for the maintenance, scheduling and management of the high-voltage power cable and the cable channel.
Description
Technical Field
The invention belongs to the technical field of power cable operation and maintenance, and particularly relates to an on-line monitoring system for a power cable and a channel.
Background
The high-voltage cable and the power tunnel are main arteries for power transmission in the urban center area, and once problems occur, the power supply safety of the core area of the whole city can be seriously affected. At present, the professional management of the operation of power cables in the whole country mostly belongs to a extensive management mode, the operation inspection and maintenance work of power cable lines is only carried out mechanically according to a period, state monitoring and state maintenance work are basically not carried out, and the condition which possibly occurs in an inspection interval period is unknown. The information of the power cable line and the tunnel is dispersed, a platform capable of realizing data sharing is not established, historical data of the power cable line is not collected, analyzed and sorted, and accurate equipment running conditions are difficult to obtain. The monitoring of the power cable system and the tunnel network is not carried out, and the management and control of the power cable network and the path resources cannot be realized.
Various defects of the conventional power cable in operation management cause that in recent years, a power tunnel in China is in fire for many times, and collapse near the pavement of the power tunnel, high-voltage cable failure and power facility theft events cause disastrous loss.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide the power cable and channel online monitoring system which can monitor the running condition of the high-voltage power cable body and the environmental condition in the cable channel in real time so as to provide technical support for the maintenance, scheduling and management of the high-voltage power cable and the cable channel.
In order to achieve the purpose, the invention adopts the following technical scheme:
a power cable and channel on-line monitoring system comprises a monitoring main station deployed in a cable transportation and inspection room of a power supply company transportation and inspection part, monitoring substations arranged in a substation communication machine room or a relay protection room near the power cable and channel, and monitoring function modules distributed on the power cable and the channel, wherein the monitoring main station and the monitoring substations adopt an 100/1000M power Ethernt network meeting the DL/T860 standard of the power supply company for data interactive transmission, and the monitoring function modules and the monitoring substations perform signal data transmission through one of a field industrial control bus, an optical fiber bus or a wireless network;
the monitoring function module comprises a cable channel internal environment monitoring system and a power cable body monitoring system, wherein the cable channel internal environment monitoring system comprises an in-channel environment optical fiber temperature measuring device for monitoring and early warning the temperature of the in-channel environment in real time, an automatic fire alarm device for detecting the early characteristics of a power cable and a channel fire and sending out a fire alarm signal, an automatic area fire extinguishing device capable of starting a fire extinguishing signal or extinguishing a fire source point in the cable channel according to the fire alarm, a channel environment monitoring device for monitoring the water level and the air quality in the channel, a well lid monitoring device for monitoring and controlling a cable well lid, a video monitoring device for comprehensively grasping equipment field pictures in the cable channel, a wireless communication system for ensuring the communication of operation and maintenance personnel in the cable channel, an intelligent inspection robot device for dynamically inspecting the whole cable channel in real time, a monitoring system for monitoring the equipment field pictures in the cable channel, a monitoring system for monitoring the environment in real time, a monitoring system for monitoring the environment in the cable channel in real time, and a monitoring system for monitoring the environment in the cable channel in real time, The system comprises an external force damage prevention vibration monitoring device for monitoring and early warning the mechanical construction behaviors around a cable channel in real time, a tunnel settlement monitoring device for monitoring key parts of crossing and passing through of the cable channel and a rail transit tunnel or an underground structure in real time, an in-channel environment optical fiber temperature measuring device, an automatic fire alarm device, an automatic regional fire extinguishing device, a channel environment monitoring device, a well lid monitoring device, a video monitoring device, a wireless communication system, an intelligent inspection robot device, an external force damage prevention vibration monitoring device and a tunnel settlement monitoring device are respectively in signal data transmission with a monitoring substation through one of a field industrial control bus, an optical fiber bus or a wireless network;
the power cable body monitoring system comprises a local discharge on-line monitoring device for continuously or periodically automatically monitoring the local discharge state quantity of the high-voltage alternating-current cable in the operating state, a power cable optical fiber temperature measuring device for monitoring the operating temperature of the power cable body in real time, a sheath grounding current monitoring device for continuously or periodically automatically monitoring the grounding current state quantity of the high-voltage cable in the operating state and a grounding wire anti-theft monitoring device for performing anti-theft alarm protection on the power cable, wherein the local discharge on-line monitoring device, the power cable optical fiber temperature measuring device, the sheath grounding current monitoring device and the grounding wire anti-theft monitoring device respectively perform signal data transmission with a monitoring substation through one of a data transmission mode of a field industrial control bus, an optical fiber bus or a wireless network.
Furthermore, the in-channel environment optical fiber temperature measuring device and the power cable optical fiber temperature measuring device are composed of temperature measuring optical cables, a temperature measuring host and monitoring calculation software, the temperature measuring optical cables arranged along power cable lines or cable channels are used as sensors, the operating temperatures of the power cable body and the channel environment are monitored in real time and early warned by utilizing an optical time domain reflection technology or an optical frequency domain reflection technology, the intelligent linkage video monitoring device confirms the truth of fire, and then the fire door is closed in a linkage mode to block fire spreading.
Furthermore, the automatic fire alarm device consists of a fire detector, a manual fire alarm button, a fire sound and light alarm, an area fire alarm controller, a centralized fire alarm controller, a graphic display device, a remote client and system software, the fire detector detects the early characteristics of the fire of a power cable and a channel, and the fire sound and light alarm sends out a fire alarm signal to evacuate people, prevent the fire from spreading and start the area automatic fire extinguishing device to provide control and indication.
Furthermore, the regional automatic fire extinguishing device comprises a fixed superfine dry powder fire extinguishing device which is arranged in a cable joint area and a joint concentration area and can extinguish a fire when receiving a fire extinguishing signal, and a movable intelligent inspection fire extinguishing device which can search a fire source point according to an alarm and aim at the fire source to extinguish the fire in a cable channel, wherein the fixed superfine dry powder fire extinguishing device consists of the superfine dry powder fire extinguishing device, an electric starting assembly, a thermosensitive cable, a signal module and a display panel, the fire extinguishing signal is transmitted to the signal module by the thermosensitive cable, and then the electric starting assembly is controlled by the signal module to start the superfine dry powder fire extinguishing device to spray dry powder fire extinguishing agent to a protection area to extinguish the fire; carry on industrial level environment temperature and humidity sensor, industrial level non-contact infrared temperature sensor, industrial level flame detector, ultrasonic detector, superfine dry powder extinguishing device and the actuating mechanism that puts out a fire on the extinguishing device is patrolled and examined to portable intelligence to environmental temperature and humidity, the source environmental parameter that generates heat in the cable channel carry out continuous monitoring.
Furthermore, the channel environment monitoring device comprises a water level monitoring and automatic drainage device which is arranged at a water collecting pit and a low-lying part of the cable channel and can monitor the water accumulation condition in the cable channel in real time and drain water, and a gas monitoring and automatic ventilation device which is arranged at an entrance and an exit along the cable channel and can monitor the condition of combustible gas and toxic and harmful gas in the cable channel in real time and ventilate the condition of combustible gas and toxic and harmful gas in linkage with a fan, wherein the water level monitoring and automatic drainage device comprises a water level detector, a data acquisition unit, a region control unit, a communication management unit, an application monitoring host and system software, the water level detector is arranged at the water collecting pit and the low-lying part of the cable channel, a drainage pump is arranged at the water collecting pit and is used for monitoring the water accumulation condition in the cable channel in real time, and when the water level exceeds a set value, the data acquisition unit sends a control signal to the region control unit to trigger an alarm, the water pump is linked for draining, and meanwhile, the drainage condition is transmitted to the application monitoring host through the communication management unit; the gas monitoring and automatic ventilation device consists of a gas sensor, a data acquisition unit, a communication management unit, an application monitoring host and system software, wherein the gas sensor monitors at least four gases including oxygen, carbon monoxide, hydrogen sulfide and methane in a cable channel in real time, and when the concentration of the gas in the channel exceeds a set value, the data acquisition unit sends a control signal to the communication management unit to trigger an alarm and starts a fan in a linkage manner, so that automatic ventilation is realized.
Furthermore, the well lid monitoring device consists of a well lid, a well lid electric control lock, a well lid lock controller, a well lid monitoring host and system software, wherein the well lid lock controller remotely opens and centrally controls the well lid electric control lock; the video monitoring device comprises a front-end camera, a communication management unit, a video storage device, a video coding and decoding device, an image display device and system software, wherein the front-end camera is additionally arranged at an entrance and an exit along the cable channel and at an important device; the wireless communication system is based on a communication operator signal base station and comprises a wireless repeater, a signal feeder line and an outdoor special receiving antenna, wherein the wireless repeater and the signal feeder line are laid along a cable channel, and a mobile phone mobile signal is introduced into the cable channel from the outside through the outdoor special receiving antenna, so that normal communication between operation and maintenance personnel in the cable channel and a monitoring master station and the outside is realized, and mutual talkback of the operation and maintenance personnel in the cable channel is realized.
Further, robot device is patrolled and examined to intelligence is by patrolling and examining robot, the robot guide rail, automatically controlled fire door, the robot charging station, robot communication network and robot control backstage are constituteed, it installs on the robot guide rail to patrol and examine the robot, it possesses regularly to patrol and examine the robot, the visible light/night vision video real time monitoring, infrared thermal imaging and malfunction alerting, the humiture transfinites the warning, fire detection and emergent fire control function, it is connected with automatically controlled fire door, the robot charging station, robot control backstage signal respectively with robot communication network to patrol and examine the robot.
Furthermore, the external force damage prevention vibration monitoring device is composed of a three-dimensional acceleration sensor, a three-dimensional acceleration collector, an application monitoring host and system software, whether mechanical construction behaviors exist on the periphery or not is deduced through measurement and analysis of parameters such as vibration times, time intervals, frequency, direction and acceleration by the three-dimensional acceleration sensor and the three-dimensional acceleration collector, the general direction of mechanical construction is measured, and the application monitoring host monitors and warns the mechanical construction behaviors on the periphery of the cable tunnel in real time; the tunnel settlement monitoring device is composed of a settlement monitoring sensor, a transmission cable, a fiber grating temperature measurement host and system software, the settlement monitoring sensor monitors the displacement, settlement, strain and slippage of key parts where a cable channel and a rail transit tunnel or an underground structure are crossed and pass through in real time, and monitoring data are transmitted to the fiber grating temperature measurement host through the transmission cable to trigger early warning.
Furthermore, the partial discharge online monitoring device consists of a partial discharge sensor, a signal acquisition unit, an application monitoring host and system application software, wherein the partial discharge sensor is used for continuously or periodically and automatically monitoring the partial discharge state quantity of the high-voltage alternating-current cable in the running state, the signal acquisition unit is used for carrying out long-term storage, management and comprehensive analysis on monitoring data, displaying and describing the monitoring data in the forms of numerical values, graphs, tables, curves, characters and the like, reflecting the change trend of the partial discharge state quantity and triggering alarm through the application monitoring host when the partial discharge state quantity is abnormal; the grounding current monitoring device of the sheath consists of a grounding current sensor, a signal acquisition unit, an application monitoring host and system application software, wherein the grounding current sensor is used for continuously or periodically and automatically monitoring the grounding current state quantity of the high-voltage cable in the operating state, the signal acquisition unit is used for carrying out long-term storage, management and comprehensive analysis on monitoring data, displaying and describing the monitoring data in the forms of numerical values, graphs, tables, curves, characters and the like, reflecting the change trend of the grounding current state quantity and triggering alarm through the application monitoring host when the grounding current state quantity is abnormal.
Furthermore, the grounding wire anti-theft cutting monitoring device consists of an anti-theft cutting sensor, a high-temperature pressure-resistant shielding wire and a comprehensive acquisition unit, wherein the anti-theft cutting sensor is fixed on a grounding cable, the installation angle is adjusted to be vertical to or form a certain angle with the gravity, the angle of the anti-theft cutting sensor can be changed when a person moves or steals the cable, and the comprehensive acquisition unit alarms after acquiring; the anti-theft sensor and the comprehensive acquisition unit are connected by a high-temperature voltage-resistant shielding wire, if the anti-theft sensor is not moved but the cable is cut, the high-temperature voltage-resistant shielding wire connected with the anti-theft sensor is wound on the sheath grounding cable, the high-temperature voltage-resistant shielding wire can be cut off, and the comprehensive acquisition unit detects that the open circuit triggers the alarm.
The invention has the following beneficial effects:
the invention relates to an on-line monitoring system for a power cable and a channel, which consists of a monitoring master station deployed in a cable transportation and inspection room of a transportation and inspection part of a power supply company, monitoring substations arranged in a substation communication machine room or a relay protection room near the power cable and the channel and monitoring function modules distributed on the power cable and the channel, wherein the monitoring master station and the monitoring substations adopt an 100/1000M power Ethernt network meeting the DL/T860 standard of the power supply company for data interactive transmission; the monitoring system has the characteristics that the operation condition of the high-voltage power cable body and the environment condition in the cable channel can be monitored in real time, so that technical support is provided for the maintenance, scheduling and management of the high-voltage power cable and the cable channel.
Drawings
FIG. 1 is a schematic diagram of the structure of an on-line monitoring system for power cables and channels according to the present invention;
fig. 2 is a schematic structural diagram of a monitoring function module of the power cable and channel online monitoring system according to the present invention.
In the figure: 1. a monitoring master station; 2. a monitoring substation; 3. a monitoring function module; 4. a power Ethernt network; 31. an environment monitoring system in the cable channel; 32. a power cable body monitoring system; 310. an optical fiber temperature measuring device for the environment in the channel; 311. an automatic fire alarm device; 312. a regional automatic fire extinguishing device; 313. a channel environment monitoring device; 314. a well lid monitoring device; 315. a video monitoring device; 316. a wireless communication system; 317. an intelligent inspection robot device; 318. the vibration monitoring device is prevented from being damaged by external force; 319. a tunnel settlement monitoring device; 312a, fixed superfine dry powder extinguishing device; 312b, a mobile intelligent inspection fire extinguishing device; 313a, a water level monitoring and automatic drainage device; 313b, gas monitoring and automatic ventilation devices; 321. a partial discharge on-line monitoring device; 322. a power cable optical fiber temperature measuring device; 323. a sheath grounding current monitoring device; 324. ground wire anti-theft cutting monitoring devices.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific embodiments so as to more clearly understand the technical idea of the invention claimed.
As shown in fig. 1-2, the power cable and channel online monitoring system of the present invention includes a monitoring master station 1 disposed in a cable transportation room of a transportation and inspection portion of a power supply company, monitoring substations 2 disposed in a substation communication room or a relay protection room near the power cable and channel, and monitoring function modules 3 distributed on the power cable and channel, where the monitoring master station 1 and the monitoring substations 2 perform data interaction transmission by using an 100/1000M power ethernet network 4 meeting the DL/T860 standard in the existing power supply company, and the monitoring function modules 3 and the monitoring substations 2 perform signal data transmission by using one of a data transmission mode of a field industrial control bus, an optical fiber bus or a wireless network;
the monitoring function module 3 comprises a cable channel internal environment monitoring system 31 and a power cable body monitoring system 32, wherein the cable channel internal environment monitoring system 31 comprises a channel internal environment optical fiber temperature measuring device 310 for monitoring and early warning the temperature of the channel internal environment in real time, an automatic fire alarm device 311 for detecting the early fire characteristics of the power cable and the channel and sending out a fire alarm signal, an automatic area fire extinguishing device 312 capable of starting a fire extinguishing signal or extinguishing a fire source point in the cable channel according to the fire alarm, a channel environment monitoring device 313 for monitoring the water level and the air quality in the channel, a well lid monitoring device 314 for monitoring and controlling the cable well lid, a video monitoring device 315 for comprehensively grasping the field pictures of the equipment in the cable channel, a wireless communication system 316 for ensuring the communication of operation and maintenance personnel in the cable channel, an intelligent robot device 317 for dynamically inspecting the whole cable channel in real time, a computer program for monitoring, The system comprises an external damage prevention vibration monitoring device 318 for monitoring and early warning the mechanical construction behavior around a cable channel in real time, a tunnel settlement monitoring device 319 for monitoring the key parts of crossing and passing through of the cable tunnel and a rail transit tunnel or an underground structure in real time, an in-channel environment optical fiber temperature measuring device 310, an automatic fire alarm device 311, an area automatic fire extinguishing device 312, a channel environment monitoring device 313, a well lid monitoring device 314, a video monitoring device 315, a wireless communication system 316, an intelligent inspection robot device 317, an external damage prevention vibration monitoring device 318 and a tunnel settlement monitoring device 319, wherein the in-situ industrial control bus, an optical fiber bus or a wireless network are used for transmitting signal data with a monitoring substation 2 respectively through one data transmission mode;
the power cable body monitoring system 32 comprises a partial discharge on-line monitoring device 321 for continuously or periodically automatically monitoring the partial discharge state quantity of the high-voltage alternating-current cable in the operating state, a power cable optical fiber temperature measuring device 322 for real-time monitoring the operating temperature of the power cable body, a sheath grounding current monitoring device 323 for continuously or periodically automatically monitoring the grounding current state quantity of the high-voltage cable in the operating state and a grounding wire anti-theft monitoring device 324 for anti-theft alarm protection of the power cable, the partial discharge on-line monitoring device 321, the power cable optical fiber temperature measuring device 322, the sheath grounding current monitoring device 323 and the grounding wire anti-theft monitoring device 324 respectively perform signal data transmission with the monitoring substation 2 through one of the data transmission modes of a field industrial control bus, an optical fiber bus or a wireless network.
The in-channel environment optical fiber temperature measuring device 310 and the power cable optical fiber temperature measuring device 322 are composed of temperature measuring optical cables, a temperature measuring host and monitoring calculation software, the temperature measuring optical cables arranged along power cable lines or cable channels are used as sensors, the operating temperatures of the power cable body and the channel environment are monitored in real time and early warned by utilizing an optical time domain reflection technology or an optical frequency domain reflection technology, the truth and falsity of fire are confirmed by the intelligent linkage video monitoring device 315, and then the fire door is closed in a linkage mode to block fire spreading.
The automatic fire alarm device 311 is composed of a fire detector, a manual fire alarm button, a fire sound and light alarm, an area fire alarm controller, a centralized fire alarm controller, a graphic display device, a remote client and system software, detects early characteristics of a power cable and a channel fire by the fire detector, sends out a fire alarm signal through the fire sound and light alarm, and provides control and indication for evacuation of people, prevention of fire spreading and starting of the area automatic fire extinguishing device 312.
The regional automatic fire extinguishing device 312 comprises a fixed superfine dry powder fire extinguishing device 312a which is arranged in a cable joint region and a joint concentration region and can extinguish a fire when receiving a fire extinguishing signal and a movable intelligent inspection fire extinguishing device 312b which can search a fire source point according to an alarm and aim at the fire source to extinguish the fire in a cable channel, wherein the fixed superfine dry powder fire extinguishing device 312a consists of a superfine dry powder fire extinguishing device, an electric starting assembly, a thermosensitive cable, a signal module and a display panel, the fire extinguishing signal is transmitted to the signal module by the thermosensitive cable, and then the electric starting assembly is controlled by the signal module to start the superfine dry powder fire extinguishing device to spray dry powder fire extinguishing agent to a protection region to extinguish the fire; carry on industrial level environment temperature and humidity sensor, industrial level non-contact infrared temperature measurement sensor, industrial level flame detector, ultrasonic detector, superfine dry powder extinguishing device and the actuating mechanism that puts out a fire on portable intelligence patrols and examines extinguishing device 312b to carry out continuous monitoring to cable channel internal environment humiture, heating source environmental parameter.
The channel environment monitoring device 313 comprises a water level monitoring and automatic drainage device 313a which is arranged at a cable channel sump and a low-lying part of the easily accumulated water and can monitor the accumulated water condition in the cable channel in real time and drain water, and a gas monitoring and automatic ventilation device 313b which is arranged at an entrance and an exit along the cable channel and can monitor the combustible gas and the toxic and harmful gas condition in the cable channel in real time and ventilate in linkage with a fan, wherein the water level monitoring and automatic drainage device 313a comprises a water level detector, a data acquisition unit, a region control unit, a communication management unit, an application monitoring host and system software, the water level detector is arranged at the cable channel sump and the low-lying part of the easily accumulated water, a drainage pump is arranged at the sump, the water level detector monitors the accumulated water condition in the cable channel in real time, and when the water level exceeds a set value, the data acquisition unit sends a control signal to the region control unit to trigger an alarm, the water pump is linked for draining, and meanwhile, the drainage condition is transmitted to the application monitoring host through the communication management unit; the gas monitoring and automatic ventilation device 313b is composed of a gas sensor, a data acquisition unit, a communication management unit, an application monitoring host and system software, the gas sensor is used for monitoring at least four gases including oxygen, carbon monoxide, hydrogen sulfide and methane in a cable channel in real time, when the concentration of the gas in the channel exceeds a set value, the data acquisition unit sends a control signal to the communication management unit to trigger an alarm, and a fan is started in a linkage mode, so that automatic ventilation is achieved.
The well lid monitoring device 314 consists of a well lid, a well lid electric control lock, a well lid lock controller, a well lid monitoring host and system software, wherein the well lid lock controller remotely opens and centrally controls the well lid electric control lock; the video monitoring device 315 comprises a front-end camera, a communication management unit, a video storage device, a video encoding and decoding device, an image display device and system software, wherein the front-end camera is additionally arranged at an entrance and an exit along a cable channel and at an important device, the video storage device stores a video camera, encodes and decodes the video camera through the video encoding and decoding device and then transmits the video camera to the image display device through the communication management unit, and finally, the monitoring master station 1 comprehensively grasps real-time field picture conditions of operation, security protection and fire protection of devices in the cable channel; the wireless communication system 316 is based on a communication operator signal base station and comprises a wireless repeater, a signal feeder line and an outdoor special receiving antenna, wherein the wireless repeater and the signal feeder line are laid along a cable channel, and a mobile phone mobile signal is introduced into the cable channel from the outside through the outdoor special receiving antenna, so that normal communication between operation and maintenance personnel in the cable channel and the monitoring master station 1 and the outside is realized, and mutual talkback between the operation and maintenance personnel in the cable channel is realized.
The external force damage prevention vibration monitoring device 318 is composed of a three-dimensional acceleration sensor, a three-dimensional acceleration collector, an application monitoring host and system software, whether mechanical construction behaviors exist on the periphery or not is deduced through measurement and analysis of parameters such as vibration times, time intervals, frequency, direction and acceleration of the three-dimensional acceleration sensor and the three-dimensional acceleration collector, the general direction of mechanical construction is measured, and the application monitoring host monitors and warns the mechanical construction behaviors on the periphery of the cable tunnel in real time; the tunnel settlement monitoring device 319 comprises a settlement monitoring sensor, a transmission cable, a fiber grating temperature measurement host and system software, wherein the settlement monitoring sensor monitors the displacement, settlement, strain and slippage of key parts where the cable channel and the rail transit tunnel or the underground structure are crossed and pass through in real time, and transmits monitoring data to the fiber grating temperature measurement host through the transmission cable to trigger early warning.
The partial discharge online monitoring device 321 is composed of a partial discharge sensor, a signal acquisition unit, an application monitoring host and system application software, the partial discharge sensor continuously or periodically and automatically monitors the partial discharge state quantity of the high-voltage alternating-current cable in the operating state, the signal acquisition unit carries out long-term storage, management and comprehensive analysis on monitoring data, displays and describes the monitoring data in the forms of numerical values, graphs, tables, curves, characters and the like, reflects the change trend of the partial discharge state quantity, and triggers an alarm through the application monitoring host when the partial discharge state quantity is abnormal; the sheath grounding current monitoring device 323 comprises a grounding current sensor, a signal acquisition unit, an application monitoring host and system application software, wherein the grounding current sensor is used for continuously or periodically and automatically monitoring the grounding current state quantity of the high-voltage cable in the operating state, the signal acquisition unit is used for carrying out long-term storage, management and comprehensive analysis on monitoring data, displaying and describing the monitoring data in the forms of numerical values, graphs, tables, curves, characters and the like, reflecting the change trend of the grounding current state quantity and triggering alarm through the application monitoring host when the grounding current state quantity is abnormal.
The grounding wire anti-theft cutting monitoring device 324 comprises an anti-theft cutting sensor, a high-temperature pressure-resistant shielding wire and a comprehensive acquisition unit, wherein the anti-theft cutting sensor is fixed on a grounding cable, the installation angle is adjusted to be vertical to or form a certain angle with the gravity, the angle of the anti-theft cutting sensor can be changed when a person moves or steals away the cable, and the comprehensive acquisition unit alarms after acquiring; the anti-theft sensor and the comprehensive acquisition unit are connected by a high-temperature voltage-resistant shielding wire, if the anti-theft sensor is not moved but the cable is cut, the high-temperature voltage-resistant shielding wire connected with the anti-theft sensor is wound on the sheath grounding cable, the high-temperature voltage-resistant shielding wire can be cut off, and the comprehensive acquisition unit detects that the open circuit triggers the alarm.
The invention discloses an on-line monitoring system for a power cable and a channel, which consists of a monitoring master station 1 deployed in a cable transportation and inspection room of a transportation and inspection part of a power supply company, monitoring substations 2 arranged in a substation communication machine room or a relay protection room near the power cable and the channel and monitoring function modules 3 distributed on the power cable and the channel, wherein the monitoring master station 1 and the monitoring substations 2 adopt an 100/1000M power Ethernt network 4 meeting the DL/T860 standard of the power supply company for data interactive transmission, the monitoring function modules 3 and the monitoring substations 2 carry out signal data transmission by one of a field industrial control bus, an optical fiber bus or a wireless network, and the monitoring function modules 3 comprise an environment monitoring system 31 in a cable channel and a power cable body monitoring system 32; the monitoring system has the characteristics that the operation condition of the high-voltage power cable body and the environment condition in the cable channel can be monitored in real time, so that technical support is provided for the maintenance, scheduling and management of the high-voltage power cable and the cable channel.
Various other changes and modifications to the above-described embodiments and concepts will become apparent to those skilled in the art from the above description, and all such changes and modifications are intended to be included within the scope of the present invention as defined in the appended claims.
Claims (10)
1. The utility model provides a power cable and passageway on-line monitoring system which characterized in that: the monitoring system comprises a monitoring main station (1) deployed in a cable operation and inspection room of an operation and inspection part of a power supply company, monitoring substations (2) arranged in a substation communication machine room or a relay protection room near a power cable and a channel, and monitoring function modules (3) distributed on the power cable and the channel, wherein the monitoring main station (1) and the monitoring substations (2) adopt an 100/1000M power Ethernt network (4) which meets the DL/T860 standard of the power supply company for data interactive transmission, and the monitoring function modules (3) and the monitoring substations (2) are used for signal data transmission in one of a field industrial control bus, an optical fiber bus or a wireless network;
the monitoring function module (3) comprises a cable channel internal environment monitoring system (31) and a power cable body monitoring system (32), wherein the cable channel internal environment monitoring system (31) comprises a channel internal environment optical fiber temperature measuring device (310) for monitoring and early warning the temperature of the channel internal environment in real time, a fire automatic alarm device (311) for detecting the early characteristics of the power cable and the channel fire and sending out a fire alarm signal, an area automatic fire extinguishing device (312) capable of starting a fire extinguishing signal or extinguishing a fire according to the fire alarm in the cable channel aiming at a fire source point, a channel environment monitoring device (313) for monitoring the water level and the air quality in the channel, a well lid monitoring device (314) for monitoring and controlling the cable well lid, a video monitoring device (315) for comprehensively mastering the field pictures of the equipment in the cable channel, a wireless communication system (316) for ensuring the communication of operation and maintenance personnel in the cable channel, and a wireless communication system (316) for monitoring the cable channel internal environment, The intelligent inspection robot device (317) is used for carrying out real-time dynamic inspection on the whole cable channel, the vibration monitoring device (318) for preventing external force damage and carrying out real-time monitoring and early warning on mechanical construction behaviors around the cable channel, the tunnel settlement monitoring device (319) is used for carrying out real-time monitoring on key positions where the cable channel and a rail transit tunnel or an underground structure intersect and pass through, the optical fiber temperature measuring device (310) of the environment in the channel, the automatic fire alarm device (311), the automatic area fire extinguishing device (312), the channel environment monitoring device (313), the well lid monitoring device (314), the video monitoring device (315), the wireless communication system (316), the intelligent inspection robot device (317), the vibration monitoring device (318) for preventing external force damage and the tunnel settlement monitoring device (319) carry out signal data transmission with the monitoring substation (2) through one of a field industrial control bus, an optical fiber bus or a wireless network Transmitting;
the power cable body monitoring system (32) comprises a partial discharge on-line monitoring device (321) for continuously or periodically automatically monitoring the partial discharge state quantity of the high-voltage alternating-current cable in the running state, a power cable optical fiber temperature measuring device (322) for real-time monitoring the running temperature of the power cable body, a sheath grounding current monitoring device (323) for continuously or periodically automatically monitoring the grounding current state quantity of the high-voltage cable in the running state and a grounding wire anti-theft monitoring device (324) for performing anti-theft alarm protection on the power cable, the partial discharge online monitoring device (321), the power cable optical fiber temperature measuring device (322), the sheath grounding current monitoring device (323) and the grounding wire anti-theft cutting monitoring device (324) respectively carry out signal data transmission with the monitoring substation (2) through one of a data transmission mode of a field industrial control bus, an optical fiber bus or a wireless network.
2. The on-line monitoring system for power cables and channels of claim 1, wherein: the in-channel environment optical fiber temperature measuring device (310) and the power cable optical fiber temperature measuring device (322) are composed of temperature measuring optical cables, a temperature measuring host and monitoring calculation software, the temperature measuring optical cables arranged along a power cable line or a cable channel are used as sensors, the operating temperature of a power cable body and the channel environment is monitored in real time and early warned by utilizing an optical time domain reflection technology or an optical frequency domain reflection technology, the truth and falsity of a fire disaster are confirmed by the intelligent linkage video monitoring device (315), and then the fire door is closed in a linkage mode to block the spread of the fire disaster.
3. The on-line monitoring system for power cables and channels of claim 1, wherein: the automatic fire alarm device (311) consists of a fire detector, a manual fire alarm button, a fire sound and light alarm, an area fire alarm controller, a centralized fire alarm controller, a graphic display device, a remote client and system software, the fire detector detects early fire characteristics of a power cable and a channel, and the fire sound and light alarm sends out a fire alarm signal to evacuate people, prevent fire from spreading and start the area automatic fire extinguishing device (312) so as to provide control and indication.
4. A power cable and channel on-line monitoring system as claimed in claim 1 or 3, wherein: the regional automatic fire extinguishing device (312) comprises a fixed superfine dry powder fire extinguishing device (312 a) which is arranged in a cable joint area and a joint concentration area and can extinguish a fire when receiving a fire extinguishing signal and a movable intelligent inspection fire extinguishing device (312 b) which can search a fire source point according to an alarm and aim at the fire source to extinguish the fire in a cable channel, wherein the fixed superfine dry powder fire extinguishing device (312 a) consists of a superfine dry powder fire extinguishing device, an electric starting assembly, a thermosensitive cable, a signal module and a display panel, the thermosensitive cable transmits the fire extinguishing signal to the signal module, and the signal module controls the electric starting assembly to start the superfine dry powder fire extinguishing device to spray dry powder fire extinguishing agent to a protection area to extinguish the fire; carry on industrial grade environment temperature and humidity sensor, industrial grade non-contact infrared temperature measurement sensor, industrial grade flame detector, ultrasonic detector, superfine dry powder extinguishing device and the actuating mechanism that puts out a fire on portable intelligence patrols and examines extinguishing device (312 b) to carry out continuous monitoring to cable channel internal environment humiture, heating source environmental parameter.
5. The on-line monitoring system for power cables and channels of claim 1, wherein: the channel environment monitoring device (313) comprises a water level monitoring and automatic drainage device (313 a) which is arranged at a cable channel water collecting pit and a low-lying position easy to accumulate water and can monitor the accumulated water condition in the cable channel in real time and perform drainage operation, and a gas monitoring and automatic ventilation device (313 b) which is arranged at an outlet and an inlet along the cable channel and can monitor the combustible gas and the toxic and harmful gas condition in the cable channel in real time and ventilate in linkage with a fan, wherein the water level monitoring and automatic drainage device (313 a) comprises a water level detector, a data acquisition unit, a region control unit, a communication management unit, an application monitoring host and system software, the water level detector is arranged at the cable channel water collecting pit and the low-lying position easy to accumulate water, a drainage pump is arranged at the water collecting pit and monitors the accumulated water condition in the cable channel in real time by the water level detector, when the water level exceeds a set value, the data acquisition unit sends a control signal to the area control unit to trigger alarm, and is linked with the water pump to drain water, and meanwhile, the drainage condition is transmitted to the application monitoring host through the communication management unit; the gas monitoring and automatic ventilation device (313 b) is composed of a gas sensor, a data acquisition unit, a communication management unit, an application monitoring host and system software, the gas sensor is used for monitoring at least four gases including oxygen, carbon monoxide, hydrogen sulfide and methane in a cable channel in real time, when the concentration of the gas in the channel exceeds a set value, the data acquisition unit sends a control signal to the communication management unit to trigger alarm, and the fan is started in a linkage mode, so that automatic ventilation is achieved.
6. The on-line monitoring system for power cables and channels of claim 1, wherein: the well lid monitoring device (314) consists of a well lid, a well lid electric control lock, a well lid lock controller, a well lid monitoring host and system software, wherein the well lid lock controller remotely opens and centrally controls the well lid electric control lock; the video monitoring device (315) comprises a front-end camera, a communication management unit, a video storage device, a video coding and decoding device, an image display device and system software, wherein the front-end camera is additionally arranged at an entrance and an exit along a cable channel and an important device, the video storage device stores a camera video, codes and decodes the camera video through the video coding and decoding device and then transmits the camera video to the image display device through the communication management unit, and finally, the monitoring master station (1) comprehensively grasps the real-time field picture conditions of operation, security protection and fire protection of the devices in the cable channel; the wireless communication system (316) is based on a communication operator signal base station and comprises a wireless repeater, a signal feeder line and an outdoor special receiving antenna, wherein the wireless repeater and the signal feeder line are laid along a cable channel, and a mobile phone mobile signal is introduced into the cable channel from the outside through the outdoor special receiving antenna, so that normal communication between operation and maintenance personnel in the cable channel, the monitoring master station (1) and the outside is realized, and mutual talkback of the operation and maintenance personnel in the cable channel is realized.
7. The on-line monitoring system for power cables and channels of claim 1, wherein: robot device (317) is patrolled and examined by the intelligence is by patrolling and examining the robot, the robot guide rail, automatically controlled fire prevention door, the robot charging station, robot communication network and robot control backstage are constituteed, it installs on the robot guide rail to patrol and examine the robot, it possesses regularly to patrol and examine the robot, visible light/night vision video real time monitoring, infrared thermal imaging and malfunction alerting, the humiture transfinites the warning, fire detection and emergent fire control function, it respectively with automatically controlled fire prevention door, the robot charging station to patrol and examine the robot through robot communication network, robot control backstage signal connection.
8. The on-line monitoring system for power cables and channels of claim 1, wherein: the external force damage prevention vibration monitoring device (318) is composed of a three-dimensional acceleration sensor, a three-dimensional acceleration collector, an application monitoring host and system software, whether mechanical construction behaviors exist on the periphery or not is deduced through measurement and analysis of parameters such as vibration times, time intervals, frequency, direction and acceleration by the three-dimensional acceleration sensor and the three-dimensional acceleration collector, the general direction of mechanical construction is measured, and the application monitoring host monitors and warns the mechanical construction behaviors on the periphery of the cable tunnel in real time; the tunnel settlement monitoring device (319) is composed of a settlement monitoring sensor, a transmission cable, a fiber bragg grating temperature measurement host and system software, the settlement monitoring sensor monitors the displacement, settlement, strain and slippage of key parts where a cable channel and a rail transit tunnel or an underground structure are crossed and pass through in real time, and monitoring data are transmitted to the fiber bragg grating temperature measurement host through the transmission cable to trigger early warning.
9. The on-line monitoring system for power cables and channels of claim 1, wherein: the partial discharge online monitoring device (321) consists of a partial discharge sensor, a signal acquisition unit, an application monitoring host and system application software, wherein the partial discharge sensor is used for continuously or periodically and automatically monitoring the partial discharge state quantity of the high-voltage alternating-current cable in the running state, the signal acquisition unit is used for carrying out long-term storage, management and comprehensive analysis on monitoring data, displaying and describing the monitoring data in the forms of numerical values, graphs, tables, curves, characters and the like, reflecting the change trend of the partial discharge state quantity and triggering alarm through the application monitoring host when the partial discharge state quantity is abnormal; the sheath grounding current monitoring device (323) consists of a grounding current sensor, a signal acquisition unit, an application monitoring host and system application software, wherein the grounding current sensor is used for continuously or periodically and automatically monitoring the grounding current state quantity of the high-voltage cable in the operating state, the signal acquisition unit is used for carrying out long-term storage, management and comprehensive analysis on monitoring data, displaying and describing the monitoring data in the forms of numerical values, graphs, tables, curves, characters and the like, reflecting the change trend of the grounding current state quantity and triggering alarm through the application monitoring host when the grounding current state quantity is abnormal.
10. The on-line monitoring system for power cables and channels of claim 1, wherein: the ground wire anti-theft cutting monitoring device (324) consists of an anti-theft cutting sensor, a high-temperature pressure-resistant shielding wire and a comprehensive acquisition unit, wherein the anti-theft cutting sensor is fixed on a ground cable, the installation angle is adjusted to be perpendicular to or form a certain angle with the gravity, the angle of the anti-theft cutting sensor can be changed when a person moves or steals the cable, and the comprehensive acquisition unit alarms after acquiring; the anti-theft sensor and the comprehensive acquisition unit are connected by a high-temperature voltage-resistant shielding wire, if the anti-theft sensor is not moved but the cable is cut, the high-temperature voltage-resistant shielding wire connected with the anti-theft sensor is wound on the sheath grounding cable, the high-temperature voltage-resistant shielding wire can be cut off, and the comprehensive acquisition unit detects that the open circuit triggers the alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210359163.3A CN114705959A (en) | 2022-04-07 | 2022-04-07 | Power cable and channel on-line monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210359163.3A CN114705959A (en) | 2022-04-07 | 2022-04-07 | Power cable and channel on-line monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114705959A true CN114705959A (en) | 2022-07-05 |
Family
ID=82171874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210359163.3A Pending CN114705959A (en) | 2022-04-07 | 2022-04-07 | Power cable and channel on-line monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114705959A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115346356A (en) * | 2022-08-05 | 2022-11-15 | 广西电网有限责任公司电力科学研究院 | Early warning method and system for power distribution network cable damage caused by external force event |
| CN116106687A (en) * | 2023-04-06 | 2023-05-12 | 广东电网有限责任公司佛山供电局 | Outdoor cable defect investigation method and system |
| CN116148594A (en) * | 2022-12-30 | 2023-05-23 | 国网上海市电力公司 | Cable tunnel running state monitoring system based on vein type network communication |
| CN117690252A (en) * | 2024-01-31 | 2024-03-12 | 国网四川省电力公司成都供电公司 | Multispectral image type fire alarm system |
-
2022
- 2022-04-07 CN CN202210359163.3A patent/CN114705959A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115346356A (en) * | 2022-08-05 | 2022-11-15 | 广西电网有限责任公司电力科学研究院 | Early warning method and system for power distribution network cable damage caused by external force event |
| CN116148594A (en) * | 2022-12-30 | 2023-05-23 | 国网上海市电力公司 | Cable tunnel running state monitoring system based on vein type network communication |
| CN116148594B (en) * | 2022-12-30 | 2024-05-31 | 国网上海市电力公司 | Cable tunnel running state monitoring system based on vein type network communication |
| CN116106687A (en) * | 2023-04-06 | 2023-05-12 | 广东电网有限责任公司佛山供电局 | Outdoor cable defect investigation method and system |
| CN116106687B (en) * | 2023-04-06 | 2023-06-09 | 广东电网有限责任公司佛山供电局 | Outdoor cable defect investigation method and system |
| CN117690252A (en) * | 2024-01-31 | 2024-03-12 | 国网四川省电力公司成都供电公司 | Multispectral image type fire alarm system |
| CN117690252B (en) * | 2024-01-31 | 2024-04-09 | 国网四川省电力公司成都供电公司 | Multispectral image type fire alarm system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111107675B (en) | Cable channel edge Internet of things terminal and method based on ubiquitous power Internet of things | |
| CN114705959A (en) | Power cable and channel on-line monitoring system | |
| CN110707823B (en) | Multi-dimensional intelligent remote inspection system for transformer substation | |
| CN104052151B (en) | Intelligent substation aided synthesis is monitored and D5000 cooler interlock platforms | |
| CN106097642B (en) | A kind of city integrated piping lane intelligent monitoring and warning device | |
| CN205910570U (en) | Need not people intelligent monitoring system of transformer substation that always falls on duty | |
| CN112072798A (en) | Fire-fighting auxiliary control integrated monitoring system and monitoring method for intelligent substation | |
| CN107991999A (en) | Power cable tunnel comprehensive monitoring system and method | |
| CN112684310B (en) | Comprehensive online intelligent monitoring system for high-voltage cable | |
| CN110798344A (en) | Intelligent power distribution operation and maintenance system | |
| CN213518557U (en) | Urban fire control thing networking monitoring management system | |
| CN209755191U (en) | Intelligent inspection robot for transformer substation monitoring | |
| CN207397051U (en) | A kind of intelligent distribution network integrates auxiliary system | |
| CN104699057A (en) | Intelligent control system for substation facilities | |
| CN213690892U (en) | An integrated pipe gallery intelligent monitoring and operation and maintenance system | |
| CN112327729A (en) | Underground cable monitoring system | |
| CN112634579A (en) | Transformer substation security early warning linkage system | |
| CN211878460U (en) | Intelligent comprehensive monitoring system for distribution transformer environment | |
| CN210324484U (en) | Inspection well cover monitoring system | |
| CN115766776A (en) | Method for realizing real-time state monitoring of power channel and edge internet of things terminal | |
| CN118587831A (en) | A cluster-type tunnel fire detection method | |
| CN110197567A (en) | A kind of inspection well cover monitoring system | |
| CN209055141U (en) | Tunnel Integrated Monitoring System | |
| CN110763279A (en) | Comprehensive pipe gallery intelligent monitoring system | |
| CN113765218B (en) | GIS+BIM-based power distribution overhead line and power facility inspection system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: No. 6 Kunzhai, Shiping Village, Liucheng Street, Nan'an City, Quanzhou City, Fujian Province, 362300 Applicant after: FUJIAN SHUGUANG CABLE Co.,Ltd. Address before: 362200 No. 75, Qing'an Road, Shedian community, Luoshan street, Jinjiang City, Quanzhou City, Fujian Province Applicant before: FUJIAN SHUGUANG CABLE Co.,Ltd. |