CN206490671U - Railway leakage cable monitoring both-end jaws equipment with fault location function - Google Patents
Railway leakage cable monitoring both-end jaws equipment with fault location function Download PDFInfo
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- CN206490671U CN206490671U CN201621401296.9U CN201621401296U CN206490671U CN 206490671 U CN206490671 U CN 206490671U CN 201621401296 U CN201621401296 U CN 201621401296U CN 206490671 U CN206490671 U CN 206490671U
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- Prior art keywords
- leakage cable
- cable
- monitoring
- repeater
- network management
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Abstract
The utility model provides a kind of railway leakage cable with fault location function and monitors both-end jaws equipment, is sent to network management center by leaking cable monitoring device by the echo reflection value received, network management center being capable of remote real time monitoring leakage coaxial cable according to standing-wave ratio（Break-make, joint looseness, water inlet etc.）With the state of monitoring device, the return loss and standing wave value for entirely leaking each position of cable link to leaky cable and the joint connect, wire jumper, feeder, antenna etc. are monitored on-line, the particular location that tuning on-line failure occurs, and record the information such as monitor equipment status, alarm type, alarm time, Operation Log.
Description
Technical field
The utility model is related to leakage cable monitoring device field, specifically a kind of railway leakage cable prison with fault location function
Survey both-end jaws equipment.
Background technology
Leakage cable is the important component of Railway Mobile Radio system, safety of its performance to railway mobile communication network
Reliable operation has critically important influence.Leak cable and feeder line failure（Joint looseness, water inlet, damaged crust, destruction, pilferage）
Cause the event of wireless communication signals Quality Down and interruption to occur repeatedly, have a strong impact on the operation safety of train.
Traditional leakage cable detection mainly has two ways, and a kind of is to carry out patrolling for leakage cable by the hand-held detection device of personnel
Depending on this method is time-consuming big, and manual workload is high, unsuitable large-scale railway leakage cable detection work；Another is solid
Regular inspection measurement equipment is monitored in real time in 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 analyze in the intensity for receiving end point detection signal, to determine the whether promising failure leakage cable of certain section leakage cable
Provide alarm.This method requires that there is principal and subordinate's monitoring device at leakage cable two ends, the problem of bringing equipment multiplexing high with installing complicated；And
And certain section of whether problematic particular location for providing alarm and being unable to orientation problem of leakage cable can only be brought to later stage repair
Difficulty.
Utility model content
The utility model leaks cable to solve problem of the prior art there is provided a kind of railway with fault location function
Both-end jaws equipment is monitored, being capable of remote real time monitoring leakage coaxial cable（Break-make, joint looseness, water inlet etc.）With monitoring device
State, to leaky cable and the joint connect, wire jumper, feeder, antenna etc. entirely the return loss of leakage cable link each position and
Standing wave value is monitored on-line, the particular location that tuning on-line failure occurs, and record monitor equipment status, alarm type,
The information such as alarm time, Operation Log.
The leakage cable monitoring both-end jaws equipment of the railway with fault location function that the utility model is provided includes proximal device
And remote equipment, described proximal device includes repeater near-end machine, repeater near-end machine respectively with base station and network management center's phase
Even；Described remote equipment includes repeater remote termination, and described repeater remote termination is connected to Lou by leaking cable monitoring device
Cable, described leakage cable monitoring device includes echo reflection value measurement mechanism and be connected on echo reflection value measurement mechanism two
Individual combiner, repeater remote termination is connected with two combiners respectively by power splitter, and each combiner is connected to one section of independence
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, Monitoring Data transmission equipment is had additional between described repeater remote termination and network management center, supervise
Survey data transmission set by optical fiber with leakage cable monitoring device to be connected, monitoring signals are delivered to Monitoring Data transmission by optical fiber and set
It is standby to return again to network management center.
Railway leakage cable with fault location function monitors the monitoring method of both-end jaws equipment, comprises the following steps：
1）Between proximal device, remote equipment and leakage cable during normal work, the echo reflection value in leakage cable monitoring device is surveyed
Measure device and the echo reflection value leaked in cable is received by combiner；
2）Leak cable monitoring device by the echo reflection value received by network cable transmission to repeater remote termination, then by straight
Station near-end machine is put to be delivered to network management center or be directly delivered to Monitoring Data transmission equipment by optical fiber, then pass through Monitoring Data
Transmission equipment is transferred 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, right because the change of weather humiture or leakage cable corrosion and ageing are caused
The influence of GSM-R requirements for signal coverage is smaller, 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 drawn by the damaged more serious or Initial fracture of leakage cable or joint looseness
Rise, influence GSM-R signals covering, 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：It is serious or joint looseness seriously causes by leakage cable badly broken or fracture, it is unsatisfactory for
GSM-R coverings are required, are likely to result in communication or dropped calls, active reporting high severity alarm.
The utility model beneficial effect is：Being capable of remote real time monitoring leakage coaxial cable（Break-make, joint looseness, enter
Water etc.）With the state of monitoring device, to leaky cable and the joint connect, wire jumper, feeder, antenna etc., entirely leakage cable link is each
The return loss and standing wave value of position are monitored on-line, the particular location that tuning on-line failure occurs, and are recorded monitoring and set
The information such as standby state, alarm type, alarm time, Operation Log.
Brief description of the drawings
Fig. 1 is that the utility model uses ether backward channel schematic diagram.
Fig. 2 is that the utility model uses optical fiber backward channel schematic diagram.
Fig. 3 is utility model works principle schematic.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
The leakage cable monitoring both-end jaws equipment of the railway with fault location function that the utility model is provided includes proximal device
And remote equipment, described proximal device includes repeater near-end machine, repeater near-end machine respectively with base station and network management center's phase
Even；Described remote equipment includes repeater remote termination, and described repeater remote termination is connected to Lou by leaking cable monitoring device
Cable, described leakage cable monitoring device includes echo reflection value measurement mechanism and be connected on echo reflection value measurement mechanism two
Individual combiner, repeater remote termination is connected with two combiners respectively by power splitter, and each combiner is connected to one section of independence
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, Monitoring Data transmission equipment is had additional between described repeater remote termination and network management center, supervise
Survey data transmission set by optical fiber with leakage cable monitoring device to be connected, monitoring signals are delivered to Monitoring Data transmission by optical fiber and set
It is standby to return again to network management center, as shown in Figure 2.
Railway leakage cable with fault location function monitors the monitoring method of both-end jaws equipment, comprises the following steps：
1）Between proximal device, remote equipment and leakage cable during normal work, the echo reflection value in leakage cable monitoring device is surveyed
Measure device and the echo reflection value leaked in cable is received by combiner；
2）Leak cable monitoring device by the echo reflection value received by network cable transmission to repeater remote termination, then by straight
Station near-end machine is put to be delivered to network management center or be directly delivered to Monitoring Data transmission equipment by optical fiber, then pass through Monitoring Data
Transmission equipment is transferred 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, right because the change of weather humiture or leakage cable corrosion and ageing are caused
The influence of GSM-R requirements for signal coverage is smaller, 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 drawn by the damaged more serious or Initial fracture of leakage cable or joint looseness
Rise, influence GSM-R signals covering, 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：It is serious or joint looseness seriously causes by leakage cable badly broken or fracture, it is unsatisfactory for
GSM-R coverings are required, are likely to result in communication or dropped calls, active reporting high severity alarm.
Utility model works principle is as shown in figure 3, when test signal is input to measured piece, a part of signal is anti-
Penetrate, another part is then transmitted, illustrate response of the measured piece to pumping signal.By measuring measured piece incidence wave and transmitted wave
Ratio, measured piece port emission parameter is obtained, so that fault point.
Utility model works technical indicator is as follows：
Unidirectional monitoring distance：Not less than 1500m（Leakage cable transmission 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 measurement period：5min；
Leakage cable quantity is monitored simultaneously is no less than 2；
Outdoor application is met, meets 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.
The utility model concrete application approach is a lot, and described above is only preferred embodiment of the present utility model, should
Point out, for those skilled in the art, on the premise of the utility model principle is not departed from, can also make
Go out some improvement, these improvement also should be regarded as protection domain of the present utility model.
Claims (3)
1. a kind of railway leakage cable monitoring both-end jaws equipment with fault location function, including proximal device and remote equipment, institute
The proximal device stated includes repeater near-end machine, and repeater near-end machine is connected with base station and network management center respectively；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 leakage cable monitoring device includes echo reflection value measurement mechanism and two be connected on echo reflection value measurement mechanism
Combiner, repeater remote termination is connected with two combiners respectively by power splitter, each combiner be connected to one section it is independent
Leak cable.
2. the railway leakage cable monitoring both-end jaws equipment according to claim 1 with fault location function, 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 railway leakage cable monitoring both-end jaws equipment according to claim 1 with fault location function, 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 by optical fiber and return again to network management center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621401296.9U CN206490671U (en) | 2016-12-20 | 2016-12-20 | Railway leakage cable monitoring both-end jaws equipment with fault location function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621401296.9U CN206490671U (en) | 2016-12-20 | 2016-12-20 | Railway leakage cable monitoring both-end jaws equipment with fault location function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206490671U true CN206490671U (en) | 2017-09-12 |
Family
ID=59770435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621401296.9U Expired - Fee Related CN206490671U (en) | 2016-12-20 | 2016-12-20 | Railway leakage cable monitoring both-end jaws equipment with fault location function |
Country Status (1)
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| CN (1) | CN206490671U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109298282A (en) * | 2017-12-12 | 2019-02-01 | 上海创远仪器技术股份有限公司 | A kind of method of polymorphic type cable connection system accurate fault location |
| 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 |
-
2016
- 2016-12-20 CN CN201621401296.9U patent/CN206490671U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109298282A (en) * | 2017-12-12 | 2019-02-01 | 上海创远仪器技术股份有限公司 | A kind of method of polymorphic type cable connection system accurate fault location |
| CN109298282B (en) * | 2017-12-12 | 2021-05-07 | 上海创远仪器技术股份有限公司 | Method for accurately positioning faults of multi-type cable connection system |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170912 Termination date: 20211220 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |