CN106603119A - Railway leaky cable monitoring dual-port equipment having fault locating function and monitoring method - Google Patents
Railway leaky cable monitoring dual-port equipment having fault locating function and monitoring method Download PDFInfo
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- CN106603119A CN106603119A CN201611183959.9A CN201611183959A CN106603119A CN 106603119 A CN106603119 A CN 106603119A CN 201611183959 A CN201611183959 A CN 201611183959A CN 106603119 A CN106603119 A CN 106603119A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000012806 monitoring device Methods 0.000 claims description 22
- 230000005540 biological transmission Effects 0.000 claims description 20
- 238000005259 measurement Methods 0.000 claims description 10
- 239000013307 optical fiber Substances 0.000 claims description 9
- 230000007246 mechanism Effects 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 5
- 230000032683 aging Effects 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 238000012360 testing method Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/46—Monitoring; Testing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L3/00—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal
- B61L3/16—Continuous control along the route
- B61L3/22—Continuous control along the route using magnetic or electrostatic induction; using electromagnetic radiation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/04—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant in circuits having distributed constants, e.g. having very long conductors or involving high frequencies
- G01R27/06—Measuring reflection coefficients; Measuring standing-wave ratio
-
- 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
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/083—Locating faults in cables, transmission lines, or networks according to type of conductors in cables, e.g. underground
-
- 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
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/088—Aspects of digital computing
-
- 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
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/58—Testing of lines, cables or conductors
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0677—Localisation of faults
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/069—Management of faults, events, alarms or notifications using logs of notifications; Post-processing of notifications
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Abstract
The invention provides a railway leaky cable monitoring dual-port equipment having a fault locating function and a monitoring method. A received echo reflection value is transmitted through leaky cable monitoring equipment to a network management center; states of a leaky coaxial cable and monitoring equipment can be monitored by the network management center according to a standing-wave ratio, including on/off, connector loosening and water inlet states; the leaky cable and echo loss and a standing wave value of each position of the whole leaky link including connected connectors, jump wires, feed cables and antennas are monitored online to find out the specific online fault position, and the information including monitoring equipment states, alarm types, the alarm time and operation logs is recorded and monitored.
Description
Technical field
The present invention relates to leak cable monitoring device field, the specifically a kind of leakage of the railway with fault location function cable monitoring is double
Port device and monitoring method.
Background technology
Leak the important component part that cable is Railway Mobile Radio system, safety of its performance to railway mobile communication network
Reliable operation has critically important impact.Leakage cable and feeder line failure（Joint looseness, water inlet, damaged crust, destruction, pilferage）
Cause wireless communication signals Quality Down and the event of interruption to occur repeatedly, have a strong impact on the operation safety of train.
Traditional leakage cable detection mainly has a two ways, and a kind of is to carry out patrolling for Lou cable by the hand-held testing equipment of personnel
Depending on this method is time-consuming big, and manual work's amount is high, has been not suitable for large-scale railway leakage cable detection work；Another kind is solid
Regular inspection measurement equipment is monitored in real time on railway communication equipment.But fixing equipment monitoring before is used according to signal
The characteristic of attenuation is produced during leakage cable with transmission range, main method is in monitoring host side signal source transmitting certain frequency
Signal, then be compared and analysis in the intensity for receiving end point detection signal, to determine that certain whether promising failure of section leakage cable leaks cable
Provide alarm.This method requires that there is principal and subordinate's monitoring device at leakage cable two ends, brings equipment multiplexing high and installs complicated problem；And
And can only to certain section leakage cable it is whether problematic be given alarm and be unable to the particular location of orientation problem, bring to later stage repair
Difficulty.
The content of the invention
The present invention is in order to solve problem of the prior art, there is provided a kind of leakage of the railway with fault location function cable monitoring
Both-end jaws equipment and monitoring method, being capable of remote real time monitoring leakage coaxial cable（Break-make, joint looseness, water inlet etc.）And monitoring
The state of equipment, the echo of each position of cable link is entirely leaked to leaky cable and the joint for being connect, wire jumper, feeder, antenna etc.
Loss and standing wave value are monitored on-line, the particular location that tuning on-line failure occurs, and record monitor equipment status, alarm
The information such as type, alarm time, Operation Log.
Railway with the fault location function leakage cable monitoring both-end jaws equipment of present invention offer is including proximal device and far
End equipment, described proximal device includes repeater near-end machine, and repeater near-end machine is connected respectively with base station and network management center；Institute
The remote equipment stated includes repeater remote termination, and described repeater remote termination is connected to leakage cable, institute by leaking cable monitoring device
The leakage cable monitoring device stated includes echo reflection value measurement mechanism and two conjunctions being connected on echo reflection value measurement mechanism
Road device, repeater remote termination is connected respectively by power splitter with two combiners, and each combiner is connected to one section of independent leakage
Cable.
Further improve, described leakage cable monitoring device is connected to repeater remote termination by netting twine, monitors return signal
Pass sequentially through repeater remote termination and repeater near-end machine is delivered to network management center.
Further improve, between described repeater remote termination and network management center Monitoring Data transmission equipment is had additional, supervise
Survey data transmission set to be connected with leakage cable monitoring device by optical fiber, monitoring signals are delivered to Monitoring Data transmission and set by optical fiber
It is standby to return again to network management center.
Present invention also offers a kind of leakage of the railway with fault location function cable monitors the monitoring method of both-end jaws equipment,
Comprise the following steps：
1）Between proximal device, remote equipment and leakage cable during normal work, the echo reflection value measurement dress in cable monitoring device is leaked
Put the echo reflection value received by combiner in leakage cable；
2）The echo reflection value for receiving is passed through network cable transmission to repeater remote termination by leakage cable monitoring device, then by repeater
Near-end machine is delivered to network management center or directly by optical fiber is delivered to Monitoring Data transmission equipment, then is transmitted by Monitoring Data
Device transmission is to network management center；
3）Network management center calculates standing-wave ratio according to echo reflection value, and is proceeded as follows according to standing-wave ratio,
3.1）Standing-wave ratio is less than 1.5, leaks cable normal work, does not alert；
3.2）Standing-wave ratio is more than or equal to 1.5, less than 2.0, because the change of weather humiture or leakage cable corrosion and ageing are caused, to GSM-
R signal covers and requires to affect less, and basic speech quality can guarantee that, active reporting minor alarm；
3.3）Standing-wave ratio is more than 2.0, less than 3.0, is gentlier caused by the leakage cable more serious or Initial fracture of breakage or joint looseness, shadow
Ring GSM-R signals to cover, speech quality declines, active reporting significant alarm, notify that attendant reaches the standard grade maintenance.
3.4）Standing-wave ratio is more than 3.0：Seriously caused by leakage cable badly broken or the serious or joint looseness that ruptures, be unsatisfactory for
GSM-R is covered and required, is likely to result in communication or dropped calls, active reporting high severity alarm.
Beneficial effect of the present invention is：Being capable of remote real time monitoring leakage coaxial cable（Break-make, joint looseness, water inlet etc.）
With the state of monitoring device, each position of cable link is entirely leaked to leaky cable and the joint for being connect, wire jumper, feeder, antenna etc.
Return loss and standing wave value monitored on-line, the particular location that tuning on-line failure occurs, and record monitoring device shape
The information such as state, alarm type, alarm time, Operation Log.
Description of the drawings
Fig. 1 adopts ether backward channel schematic diagram for the present invention.
Fig. 2 adopts optical fiber backward channel schematic diagram for the present invention.
Fig. 3 is operation principle schematic diagram of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings the invention will be further described.
Railway with the fault location function leakage cable monitoring both-end jaws equipment of present invention offer is including proximal device and far
End equipment, described proximal device includes repeater near-end machine, and repeater near-end machine is connected respectively with base station and network management center；Institute
The remote equipment stated includes repeater remote termination, and described repeater remote termination is connected to leakage cable, institute by leaking cable monitoring device
The leakage cable monitoring device stated includes echo reflection value measurement mechanism and two conjunctions being connected on echo reflection value measurement mechanism
Road device, repeater remote termination is connected respectively by power splitter with two combiners, and each combiner is connected to one section of independent leakage
Cable.
Further improve, described leakage cable monitoring device is connected to repeater remote termination by netting twine, monitors return signal
Pass sequentially through repeater remote termination and repeater near-end machine is delivered to network management center, as shown in Figure 1.
Further improve, between described repeater remote termination and network management center Monitoring Data transmission equipment is had additional, supervise
Survey data transmission set to be connected with leakage cable monitoring device by optical fiber, monitoring signals are delivered to Monitoring Data transmission and set by optical fiber
It is standby to return again to network management center, as shown in Figure 2.
Present invention also offers a kind of leakage of the railway with fault location function cable monitors the monitoring method of both-end jaws equipment,
Comprise the following steps：
1）Between proximal device, remote equipment and leakage cable during normal work, the echo reflection value measurement dress in cable monitoring device is leaked
Put the echo reflection value received by combiner in leakage cable；
2）The echo reflection value for receiving is passed through network cable transmission to repeater remote termination by leakage cable monitoring device, then by repeater
Near-end machine is delivered to network management center or directly by optical fiber is delivered to Monitoring Data transmission equipment, then is transmitted by Monitoring Data
Device transmission is to network management center；
3）Network management center calculates standing-wave ratio according to echo reflection value, and is proceeded as follows according to standing-wave ratio,
3.1）Standing-wave ratio is less than 1.5, leaks cable normal work, does not alert；
3.2）Standing-wave ratio is more than or equal to 1.5, less than 2.0, because the change of weather humiture or leakage cable corrosion and ageing are caused, to GSM-
R signal covers and requires to affect less, and basic speech quality can guarantee that, active reporting minor alarm；
3.3）Standing-wave ratio is more than 2.0, less than 3.0, is gentlier caused by the leakage cable more serious or Initial fracture of breakage or joint looseness, shadow
Ring GSM-R signals to cover, speech quality declines, active reporting significant alarm, notify that attendant reaches the standard grade maintenance.
3.4）Standing-wave ratio is more than 3.0：Seriously caused by leakage cable badly broken or the serious or joint looseness that ruptures, be unsatisfactory for
GSM-R is covered and required, is likely to result in communication or dropped calls, active reporting high severity alarm.
Operation principle of the present invention is as shown in figure 3, when test signal is input to measured piece, a part of signal is reflected, separately
It is a part of then be transmitted, illustrate response of the measured piece to pumping signal.By the ratio for measuring measured piece incidence wave and transmitted wave
Value, obtains measured piece port emission parameter, so as to fault point.
Operating technology index of the present invention is as follows：
Unidirectional monitoring distance：Not less than 1500m（Leakage cable loss is not more than 2.7dB/100m, and limit test condition is end
Standing-wave ratio 1.5）；
Fault location precision：No more than 5m；
Test frequency：780MHz ~ 820MHz；
The transmission power of test signal：≤10dBm；
Standing-wave ratio accuracy of detection：±0.1；
Spurious emissions：Monitoring signals leak into base station, the power of repeater working frequency range is less than -100dBm；
Minimum measure the cycle：5min；
Leakage cable quantity is monitored simultaneously is no less than 2；
Meet outdoor application, meet IP55 degree of protection.
Working power：Supply voltage is AC220V ± 30%；
Power consumption：＜ 20W；
Equipment mounting means：Wall built-up is installed；
Reliability:MTBF（MTBF）>=5 ten thousand hours；
- 25 DEG C ~+55 DEG C of operating temperature.
Concrete application approach of the present invention is a lot, and the above is only the preferred embodiment of the present invention, it is noted that for
For those skilled in the art, under the premise without departing from the principles of the invention, some improvement can also be made, this
A little improvement also should be regarded as protection scope of the present invention.
Claims (4)
1. a kind of leakage of the railway with fault location function cable monitors both-end jaws equipment, including proximal device and remote equipment, institute
The proximal device stated includes repeater near-end machine, and repeater near-end machine is connected respectively with base station and network management center；Described distal end
Equipment includes repeater remote termination, it is characterised in that：Described repeater remote termination is connected to leakage cable by leaking cable monitoring device,
Described leaks two that cable monitoring device includes echo reflection value measurement mechanism and is connected on echo reflection value measurement mechanism
Combiner, repeater remote termination is connected respectively by power splitter with two combiners, each combiner be connected to one section it is independent
Leakage cable.
2. the leakage of the railway with fault location function cable according to claim 1 monitors both-end jaws equipment, it is characterised in that：
Described leakage cable monitoring device is connected to repeater remote termination by netting twine, and monitoring return signal passes sequentially through repeater remote termination
Network management center is delivered to repeater near-end machine.
3. the leakage of the railway with fault location function cable according to claim 1 monitors both-end jaws equipment, it is characterised in that：
Monitoring Data transmission equipment is had additional between described repeater remote termination and network management center, Monitoring Data transmission equipment passes through light
Fine to be connected with leakage cable monitoring device, monitoring signals are delivered to Monitoring Data transmission equipment and return again to network management center by optical fiber.
4. it is a kind of with fault location function railway leakage cable monitor both-end jaws equipment monitoring method, it is characterised in that include with
Lower step：
1）Between proximal device, remote equipment and leakage cable during normal work, the echo reflection value measurement dress in cable monitoring device is leaked
Put the echo reflection value received by combiner in leakage cable；
2）The echo reflection value for receiving is passed through network cable transmission to repeater remote termination by leakage cable monitoring device, then by repeater
Near-end machine is delivered to network management center or directly by optical fiber is delivered to Monitoring Data transmission equipment, then is transmitted by Monitoring Data
Device transmission is to network management center；
3）Network management center calculates standing-wave ratio according to echo reflection value, and is proceeded as follows according to standing-wave ratio,
3.1）Standing-wave ratio is less than 1.5, leaks cable normal work, does not alert；
3.2）Standing-wave ratio is more than or equal to 1.5, less than 2.0, because the change of weather humiture or leakage cable corrosion and ageing are caused, to GSM-
R signal covers and requires to affect less, and basic speech quality can guarantee that, active reporting minor alarm；
3.3）Standing-wave ratio is more than 2.0, less than 3.0, is gentlier caused by the leakage cable more serious or Initial fracture of breakage or joint looseness, shadow
Ring GSM-R signals to cover, speech quality declines, active reporting significant alarm, notify that attendant reaches the standard grade maintenance；
3.4）Standing-wave ratio is more than 3.0：Seriously caused by leakage cable badly broken or the serious or joint looseness that ruptures, be unsatisfactory for GSM-R
Cover and require, be likely to result in communication or dropped calls, active reporting high severity alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611183959.9A CN106603119A (en) | 2016-12-20 | 2016-12-20 | Railway leaky cable monitoring dual-port equipment having fault locating function and monitoring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611183959.9A CN106603119A (en) | 2016-12-20 | 2016-12-20 | Railway leaky cable monitoring dual-port equipment having fault locating function and monitoring method |
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| Publication Number | Publication Date |
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| CN106603119A true CN106603119A (en) | 2017-04-26 |
Family
ID=58599776
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611183959.9A Pending CN106603119A (en) | 2016-12-20 | 2016-12-20 | Railway leaky cable monitoring dual-port equipment having fault locating function and monitoring method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108768458A (en) * | 2018-04-27 | 2018-11-06 | 广州杰赛科技股份有限公司 | Multi-system access platform leaks detection method, device and the leakage cable detecting system of cable |
| CN109150327A (en) * | 2018-08-28 | 2019-01-04 | 维沃移动通信有限公司 | A kind of antenna detection method, antenna detection device and mobile terminal |
| CN110275092A (en) * | 2019-07-18 | 2019-09-24 | 上海创远仪器技术股份有限公司 | Based on the method for overcoming cable properties overcompensation technology to realize fault location processing |
| CN110855322A (en) * | 2019-12-04 | 2020-02-28 | 天津七一二通信广播股份有限公司 | Railway leaky coaxial cable fault positioning and monitoring system and implementation method thereof |
| CN113239757A (en) * | 2021-04-28 | 2021-08-10 | 宁波思高信通科技有限公司 | Leaky cable detection method and system, storage medium and intelligent terminal |
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| CN103344880A (en) * | 2013-05-24 | 2013-10-09 | 南京泰通科技有限公司 | Leaky cable/antenna feeder real-time monitoring apparatus and working method thereof |
| CN103716098A (en) * | 2013-11-15 | 2014-04-09 | 上海新干通通信设备有限公司 | Leaky cable detection device and system |
| CN205453713U (en) * | 2015-12-28 | 2016-08-10 | 上海睿中实业股份公司 | Leak cable monitoring system |
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2016
- 2016-12-20 CN CN201611183959.9A patent/CN106603119A/en active Pending
Patent Citations (3)
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| CN103344880A (en) * | 2013-05-24 | 2013-10-09 | 南京泰通科技有限公司 | Leaky cable/antenna feeder real-time monitoring apparatus and working method thereof |
| CN103716098A (en) * | 2013-11-15 | 2014-04-09 | 上海新干通通信设备有限公司 | Leaky cable detection device and system |
| CN205453713U (en) * | 2015-12-28 | 2016-08-10 | 上海睿中实业股份公司 | Leak cable monitoring system |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108768458A (en) * | 2018-04-27 | 2018-11-06 | 广州杰赛科技股份有限公司 | Multi-system access platform leaks detection method, device and the leakage cable detecting system of cable |
| CN109150327A (en) * | 2018-08-28 | 2019-01-04 | 维沃移动通信有限公司 | A kind of antenna detection method, antenna detection device and mobile terminal |
| CN109150327B (en) * | 2018-08-28 | 2021-04-02 | 维沃移动通信有限公司 | Antenna detection method, antenna detection device and mobile terminal |
| CN110275092A (en) * | 2019-07-18 | 2019-09-24 | 上海创远仪器技术股份有限公司 | Based on the method for overcoming cable properties overcompensation technology to realize fault location processing |
| CN110275092B (en) * | 2019-07-18 | 2021-05-11 | 上海创远仪器技术股份有限公司 | Method for realizing fault positioning processing based on technology for overcoming cable characteristic overcompensation |
| CN110855322A (en) * | 2019-12-04 | 2020-02-28 | 天津七一二通信广播股份有限公司 | Railway leaky coaxial cable fault positioning and monitoring system and implementation method thereof |
| CN113239757A (en) * | 2021-04-28 | 2021-08-10 | 宁波思高信通科技有限公司 | Leaky cable detection method and system, storage medium and intelligent terminal |
| CN113239757B (en) * | 2021-04-28 | 2022-05-13 | 宁波思高信通科技有限公司 | Leaky cable detection method and system, storage medium and intelligent terminal |
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Application publication date: 20170426 |