CN103777578B - Power tunnel cable monitoring method with self-inspection with warm connection function - Google Patents
Power tunnel cable monitoring method with self-inspection with warm connection function Download PDFInfo
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- CN103777578B CN103777578B CN201210398163.0A CN201210398163A CN103777578B CN 103777578 B CN103777578 B CN 103777578B CN 201210398163 A CN201210398163 A CN 201210398163A CN 103777578 B CN103777578 B CN 103777578B
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Abstract
The present invention is the power tunnel cable monitoring method of band self-inspection and warm connection function, including cable sheath current monitoring unit, tunnel environment Monitoring and Controlling unit, well lid Monitoring and Controlling unit, tunnel portal Monitoring and Controlling unit, fire resistant doorsets Monitoring and Controlling unit.Each status monitoring and device control cell independently assign on the mainboard in vasculum, support hot plug；Data are transmitted as GMS/CDMA transmission or CAN BUSS bus transfer.It is additionally provided with humidity detector on mainboard simultaneously, at any time the environment in vasculum is detected, and send relevant detection data to substation Surveillance center.System is provided with state self-checking unit, and each unit duty carries out self-inspection at any time, and once system malfunctions or independent unit break down, or individually detector breaks down, and trouble location can clearly and rapidly be positioned by staff.
Description
Technical field
The present invention relates to a kind of energizing power indiscriminate examining system of system subterranean tunnel, for monitoring the power supply electricity in Urban underground Tunnel
Running State.
Background technology
Along with the rapid expansion worked under the propelling of intelligent grid construction and urban distribution network, tunnel internal safe operation of electric network is more
Get over and paid attention to by line upkeep department, need to ensure that trench or shallow ridges power cable are properly functioning, such as from multiple links:
Electric power tunnel manhole cover anti-theft and the monitoring of illegal unlatching, electric power tunnel integrated environment monitor, power cable earth current is monitored,
Electric power tunnel entrance gate inhibition and fire resistant doorsets monitoring etc..
In order to reach above required, create some electric power tunnel condition monitoring systems, but analyzed and after test through applicant,
Draw following some shortcomings:
1, electric power tunnel condition monitoring system way is to use the mode designed by each function system All-in-One, this system tray
The advantage of structure is, system design realization be easier, the manufacturing cost of equipment has been saved, it is done so that inferior position also
It is apparent from, such as: fault location difficulty, once entirety is paralysed by system malfunctions, the operation between subsystem
Can influence each other, maintenance technology requires more professional, is unfamiliar with whole system and will have no idea to safeguard, maintenance time is longer,
Maintenance cost is higher.
2, because wireless device signal covering problem below tunnel and long-time (reaching more than 1.5 years) equipment cannot be solved
Power itself problem, so can only wired mode networking, it is impossible to take into account trench, shallow ridges, the situation in remote tunnel.
3, not can solve remote equipment to power and communication issue, so substantially using newly-built supply network and transmission network
The mode of network carries out system group network, so at the most newly-increased 2 set of fault points of tunnel rugged environment, to follow-up maintenance
Work brings a lot of uncertain hidden danger.
Summary of the invention
In order to protect supply of electric power, it is ensured that the safety of tunnel inner cable, it is ensured that power cable normally works, the present invention proposes
A kind of band self-inspection and the power tunnel cable monitoring system of warm connection function.
It mainly includes status monitoring and device control cell, data transmission unit, data monitor center.
Described status monitoring and device control cell include cable sheath current monitoring unit, tunnel environment Monitoring and Controlling unit,
Well lid Monitoring and Controlling unit, tunnel portal Monitoring and Controlling unit, fire resistant doorsets Monitoring and Controlling unit；Each status monitoring and equipment control
Unit processed assigns on the mainboard in vasculum respectively；Humidity detector, state self-checking unit, electricity it is additionally provided with on mainboard
Source apparatus.
Current monitoring unit installs to the current transformer on cable grounding line and the temperature sensor being arranged on cable connector with set
Connect, in order to monitor cable grounding line by electric current and temperature of cable junction.
Tunnel environment Monitoring and Controlling unit is connected with hygrosensor, gas detector, water level detector；Open with blower fan simultaneously
Opening device, water pump opening device connect.
Well lid Monitoring and Controlling unit opens monitoring device with well lid and well cover opening device is connected.
Fire resistant doorsets Monitoring and Controlling unit is connected with fireproof monitoring device and fire resistant doorsets starter.
Tunnel portal Monitoring and Controlling unit is connected with tunnel portal monitoring device and tunnel portal opening device.
Described data transmission unit is radio transmission apparatus or bus transfer；Wireless device is transmitted as GMS/CDMA transmission, always
Line is transmitted as CAN-BUSS bus transfer.
Data monitor center is substation Surveillance center；And at least one substation Surveillance center is connected with comprehensively monitoring center.
The power tunnel cable monitoring system of band self-inspection as above and warm connection function, illustrate further into, status monitoring with
Device control cell is connected with data transmission unit by data processing unit.
Band self-inspection of the present invention and the power tunnel cable monitoring system of warm connection function, set in tunnel environment Monitoring and Controlling unit
Determine the normal value of temperature in tunnel, harmful gas normal value, tunnel water accumulation level line value, the harmful gas in detecting tunnel
When body burden exceedes normal value, tunnel environment Monitoring and Controlling unit transmits to blower fan opening device and starts order, starts tunnel wind
Machine, discharges gas, is transmitted by GMS/CDMA simultaneously or CAN-BUSS bus transmits harmful gas to substation Surveillance center and contains
Value and fan condition data.
When the temperature value detected in tunnel exceedes normal value, tunnel environment Monitoring and Controlling unit is to blower fan opening device transmission
Start order, start tunnel blower, reduce temperature in tunnel, transmitted by GMS/CDMA simultaneously or CAN-BUSS bus to
Substation Surveillance center transmits temperature value and fan condition data.
When the water accumulation level value detected in tunnel exceedes normal value, tunnel environment Monitoring and Controlling unit is to water pump opening device
Transmission starts order, starts tunnel water pump, extracts hydrops out, is transmitted by GMS/CDMA simultaneously or CAN-BUSS bus is to dividing
Surveillance center of standing transmits water accumulation level value and water pump status data.
Substation Surveillance center is transmitted by GMS/CDMA or CAN-BUSS bus transfer unit is to well cover opening device or fire prevention
Door operating gear or tunnel portal opening device send well lid open command or fire resistant doorsets start order or tunnel portal is opened
Open order, well cover opening device or fire resistant doorsets starter or tunnel portal opening device is opened well lid or starts fire prevention
Door or open tunnel portal.
When substation Surveillance center and well cover opening device or tunnel portal opening device communication broke down, and quick-acting prescription is answered in employing
When formula open manhole cover or tunnel portal, well lid monitoring device, tunnel portal monitoring device are by the operating state data of well lid or tunnel
The operational data of road entrance preserves, and after communication recovery, sends substation Surveillance center to.
Current transformer detects cable grounding line current situation, and situation is write data signal, signal quilt by current monitoring unit
It is sent to substation Surveillance center in real time, earth current data will be detected and carry out contrast and comprehensive analysis with cable load data,
When data exception, send, by comprehensively monitoring center, the abnormal data analyzed to cable management person liable.
Sheath grounding current and temperature of cable junction monitoring are the signals by sensor coupling cable earth lead, are collected
Sheath grounding current parameter be sent to monitoring center, temperature of cable junction is acquired simultaneously, temperature of cable junction is made
For auxiliary parameter, it is achieved the running status of cable is effectively assessed.
The current signal inputted from current transformer is converted into voltage signal by current monitoring unit, and is responsible for the data obtained
Carry out preliminary treatment, and transmit treated data to data transmission unit.
Each Condition Monitoring Unit according to being set for the normal of instantaneous value and maximum and out-of-limit can report, and to the number reported
According to temporary.
Beneficial effect:
Native system product uses modular design, by the cable sheath current monitoring unit in Condition Monitoring Unit, tunnel
The each unit such as road Environment Monitor Unit, well lid monitoring unit, tunnel portal monitoring unit, fire resistant doorsets monitoring unit are the most independent
Design, can carry out flexible combination between each unit, do so maximum is advantageous in that, once whole system break down or
The independent unit of person breaks down, or individually detector breaks down, and staff can clearly and quickly position, permissible
Quickly a certain trouble unit being carried out quick replacement, do not affect whole system and run, normal cell can continue to run with, and
And system uses open architecture design, it is allowed to third party's unit seamless accesses, and so can simplify maintenance work, be greatly shortened
Maintenance time.
The present invention uses mixed networking mode, uses the wired networking of each unit and the hybrid mode of wireless networking, due to the present invention
Equipment is power autonomous, so can not arrive or wired place being difficult to arrive wired, as the state of trench or shallow ridges is supervised
Surveying, we use wireless networking mode, and so advantage of maximum is to provide to tunnel, trench, and shallow ridges etc. is multiple multiple
The needs of system monitoring under heterocycle border.
The detector of product of the present invention accesses and all uses CAN-BUSS bus mode, and the communication of this mode shares a pair with power supply
0.5 square millimeter of thick armouring electric power multiple twin communication cable, it is not necessary to setting up optical network communication, communication distance can reach 10
Kilometer, a pair armouring electric power multiple twin communication cable at most can connect 127 equipment with bussing technique, without optical network fault with
Low-tension current interface fault, 1 equipment fault does not affect other equipment and uses, and a pair twisted-pair feeder had both solved equipment and powered and ask
Topic, the communication issue of the equipment solved again, do not introduce other low-voltage supply line and transmission network simultaneously, ensure system
The safety that water environment uses is coagulated in tunnel.
It is additionally provided with humidity detector on mainboard, at any time the environment in vasculum is detected, and give substation Surveillance center
Send relevant detection data.
System is provided with state self-checking unit, and each unit duty carries out self-inspection at any time, once system malfunctions or
Individually unit breaks down, or individually detector breaks down, and trouble location can clearly and rapidly be entered by staff
Row location.
Accompanying drawing explanation
Fig. 1 is present configuration schematic diagram
Detailed description of the invention
Present invention networking as above: status monitoring and device control cell, data transmission unit, data monitor center string
Connection attachment structure.
The monitoring of cable grounding line is mainly used in power system 110KV and the supervision of above cable metal sheath grounding circulation, wired
The tunnel lay mode that system design uses based on cable lay.
Each detecting devices of the present invention shares a pair 0.5 square millimeter of thick armours with the power supply of the communication of system and each detecting devices
Dress electric power multiple twin communication cable, it is not necessary to set up optical network communication, communication distance is more than 5 kilometers, a pair armouring electric power multiple twin
Communication cable at most can connect 127 equipment with bussing technique, without optical network fault and low-tension current interface fault, and 1
Equipment fault does not affect other equipment and uses.
Each detector of the present invention and controller function card can be installed concentratedly in vasculum, can be according to on-the-spot needs, peace in case
Fill different each detectors and controller function card, such as earth current capture card, 4-20mA standard transmitter card, switch
Amount controls card etc..Vasculum uses hermetically sealed waterproofing design, it is to avoid because the equipment of introducing increases the potential safety hazard in tunnel.
The present invention is general in special environment uses low pressure far-end direct current supply.Present invention design uses based on current state inner cable lay
Trench and built on stilts lay mode, each unit is self-powered, and each function card uses super low-power consumption chip, it is ensured that be changed without electricity
In the case of source, can run continuously more than 2 years, effectively prevent the equipment operation that non-transformer in tunnel and trench provides lower,
Solve the difficult problem that monitoring device is run in tunnel.For environment special in tunnel and raceway groove, system have employed the most waterproof,
Acid-proof, Anti-corrosion design, can guarantee that equipment in particular cases runs steadily in the long term.
Vasculum should possess following design: cast aluminium can, antiseptic and rustproof；Thorough seal, cable incoming-outgoing uses waterproof
Joint, classification of waterproof reaches IP67.
Having cable tandem function, convenient construction connects up；Inside there are 7 plate positions, 7 function cards can be installed；Possesses humidity certainly
Checking functions.Bus antisurge designs.
Tunnel portal opening device can realize the centralized management to monitoring door, uses real-time communication mode, can be with the RFID authorized
Radio-frequency card carries out mandate and starts, it is also possible to use central authority remote opening, loses can open with emergency key scene when communication,
Tunnel portal monitoring device can switch access information with real time record and communication loss record simultaneously, and recovery to be communicated is unified uploads
To substation Surveillance center, specification tunnel's entrance and exit management system, the illegal of effective management tunnel enters and enters authentication
Problem, significant to tunnel device safe operation.
Claims (1)
1. band self-inspection monitors method with the power tunnel cable of warm connection function, it is characterised in that
The normal value of temperature, harmful gas normal value, tunnel water accumulation level line in tunnel is set in tunnel environment Monitoring and Controlling unit
Value, when the harmful gas content detected in tunnel exceedes normal value, tunnel environment Monitoring and Controlling unit passes to blower fan opening device
Send startup order, start tunnel blower, discharge gas, transmitted by GMS/CDMA simultaneously or CAN-BUSS bus is to dividing
Surveillance center of standing transmits harmful gas content value and fan condition data；
When the temperature value detected in tunnel exceedes normal value, tunnel environment Monitoring and Controlling unit transmits to blower fan opening device and starts
Order, starts tunnel blower, reduces temperature in tunnel, is transmitted by GMS/CDMA simultaneously or CAN-BUSS bus is to dividing
Surveillance center of standing transmits temperature value and fan condition data；
When the water accumulation level value detected in tunnel exceedes normal value, tunnel environment Monitoring and Controlling unit is to water pump opening device transmission
Start order, start tunnel water pump, extract hydrops out, transmitted by GMS/CDMA simultaneously or CAN-BUSS bus is to substation
Surveillance center transmits water accumulation level value and water pump status data；
Substation Surveillance center is transmitted by GMS/CDMA or CAN-BUSS bus transfer unit is to well cover opening device or fire prevention
Door operating gear or tunnel portal opening device send well lid open command or fire resistant doorsets start order or tunnel portal opens life
Order, well cover opening device or fire resistant doorsets starter or tunnel portal opening device are opened well lid or start fire resistant doorsets or beat
Open tunnel entrance；
When substation Surveillance center and well cover opening device or tunnel portal opening device communication broke down, and emergency mode is used to open
When opening well lid or tunnel portal, well lid monitoring device, tunnel portal monitoring device are by the operating state data of well lid or tunnel portal
Operational data preserves, and after communication recovery, sends substation Surveillance center to；
Current transformer detects cable grounding line current situation, and situation is write data signal by current monitoring unit, and signal is by real time
It is sent to substation Surveillance center, earth current data will be detected and carry out contrast and comprehensive analysis with cable load data, when data are different
Chang Shi, sends, by comprehensively monitoring center, the abnormal number analyzed to cable management person liable；
Sheath grounding current and temperature of cable junction monitoring are the signals by sensor coupling cable earth lead, and collected protects
Layer earth current parameter is sent to monitoring center, is acquired temperature of cable junction simultaneously, using temperature of cable junction as auxiliary ginseng
Number, it is achieved the running status of cable is effectively assessed；
The current signal inputted from current transformer is converted into voltage signal by current monitoring unit, and is responsible for carrying out the data of acquisition
Preliminary treatment, and transmit treated data to data transmission unit；
Each Condition Monitoring Unit according to being set for the normal of instantaneous value and maximum and out-of-limit can report, and temporary to the data reported
Deposit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210398163.0A CN103777578B (en) | 2012-10-19 | 2012-10-19 | Power tunnel cable monitoring method with self-inspection with warm connection function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210398163.0A CN103777578B (en) | 2012-10-19 | 2012-10-19 | Power tunnel cable monitoring method with self-inspection with warm connection function |
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| CN103777578A CN103777578A (en) | 2014-05-07 |
| CN103777578B true CN103777578B (en) | 2016-08-31 |
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| CN201210398163.0A Active CN103777578B (en) | 2012-10-19 | 2012-10-19 | Power tunnel cable monitoring method with self-inspection with warm connection function |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104914840A (en) * | 2015-06-17 | 2015-09-16 | 铁道第三勘察设计院集团有限公司 | Railway tunnel emergency monitoring system based on mobile platform |
| CN106593181B (en) * | 2017-01-04 | 2018-12-25 | 广州穗能通综合能源有限责任公司 | Fire resistant doorsets on-off control system open in usual and electric power tunnel fire resistant doorsets open in usual |
| CN111412950A (en) * | 2020-04-14 | 2020-07-14 | 广东电网有限责任公司 | Typical scene comprehensive monitoring device for distribution network |
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Denomination of invention: Electric power tunnel cable monitoring method with self-check and hot swap functions Effective date of registration: 20190906 Granted publication date: 20160831 Pledgee: The Great Wall West Bank Bank of China Deyang hi tech branch Pledgor: Li Cheng Registration number: Y2019510000018 |
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