CN103824422B - Along Railway rockfall monitoring and alarming system - Google Patents
Along Railway rockfall monitoring and alarming system Download PDFInfo
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- CN103824422B CN103824422B CN201210467220.6A CN201210467220A CN103824422B CN 103824422 B CN103824422 B CN 103824422B CN 201210467220 A CN201210467220 A CN 201210467220A CN 103824422 B CN103824422 B CN 103824422B
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Abstract
It is disclosed field monitoring equipment, signal processing system and monitoring and alarming system.Described field monitoring equipment includes：Fiber-optic grating sensor individuality or the distributive array being made up of it；And fiber Bragg grating (FBG) demodulator, wherein, with described fiber-optic grating sensor or the array that is made up of it is connected described fiber Bragg grating (FBG) demodulator by signal transmission fiber, described fiber-optic grating sensor is arranged on the precalculated position of rail, fall to having the signal being associated during falling rocks with rail for monitoring in real time, and this signal is returned to described fiber Bragg grating (FBG) demodulator.
Description
Technical field
The present invention relates to field monitoring equipment, signal processing system and monitoring and alarming system, more particularly, to for ferrum
The field monitoring equipment of curb line rockfall, signal processing system and monitoring and alarming system.
Background technology
Rockfall as a kind of superficial portion failure mode of side slope especially high gradient slope, be serious geological disaster it
One.It is sudden strong, and randomness is big, and speed is fast, occurs fierce, always the emphasis in slope project prospecting.Collapse due to being formed
It is distributed in high gradient slope on the Dangerous Rock Body of slump stone disaster more, administer will expend huge manpower and materials completely from source, at present
It is more the rock-fall protection measures taken before causing calamity.Falling rocks is a kind of multiple geological disaster in China mountain area, to highway, railway
Build and operation brings huge harm with mountain area people's lives.My mountain road both sides massif is affected by many factors, rock
Phenomenon of falling happens occasionally, and so that railway and vehicle is slightly damaged, heavy then make road interrupt, to railway transportation bring weight
Big loss;What is more, and the enormous impact energy of falling rocks seriously threatens people's life's safety, and its extent of injury is not sub-
In geological disasters such as mud-rock flow, landslides.Geological disaster seriously threatens the traffic safeties such as railway, highway and passenger's life peace
Entirely.Particularly mountain railway, once there is disconnected road, thousands of passenger is detained other places it is impossible to arrive on time, normally
Production, orders of life be also broken, bring enormous pressure to social stability, bring also to traffic operation department and passenger simultaneously
It is difficult to the indirect economic loss estimated, for this reason, actively taking measures, being monitored early warning as far as possible to various geological disasters has
Great profound significance and impact.
Railway rockfall monitoring and alarming system technology, be mainly concerned with rockfall geological disaster disaster prevention safety monitoring with
The foreign bodies such as warning system, rockfall invade automatic monitoring technical, disaster prevention and alarm system data monitoring transmission technology research and danger
Rock falling rocks disaster prevention safety monitoring systems technology detailed rules for the implementation use management method etc. with safeguarding, according to substantial amounts of truthful data to ferrum
Road rockfall disaster is monitored technical research.Conventional guard technology passes through to install active protecting net system and passive protection
Net is realized.Active control technique is applied to Dangerous Rock Body that prospecting determines, large-scale and administers；Passive Prevention Technique is applied to crag
Band, or wire engineering is by protecting under rockfall disaster threat.Its advantage is can effective protection falling rocks disaster threat comprehensively
Object, but it is limited to the interdiction capability of passive protection system, it is commonly used to intercept small-sized falling rocks.Effectively the setting of passive protection system
Put the degree of reliability depending on the prediction of falling rocks motor behavior, such as motion path, jumping height, movement velocity, kinetic energy is isoparametric
Obtain.At present, actively and passively Prevention Technique all Shortcomings, once falling rocks is skipped or is broken through passive protection net enters railway circle
Great harm will be produced to circuit normal operation in limit.
Rockfall monitoring technology aspect along the railway, has carried out research and the application of part both at home and abroad, has generally deposited
In problems with：One is part monitoring device somewhat expensive it is impossible to widely apply；Two is to draw because testing element installation method is improper
Inaccurate phenomenon often occurs with data for the breakage rising, and three is that forecasting model is relatively difficult with the determination of warning trigger condition；Four
It is that endurance issues ratio is more prominent, particularly testing element is affected easily to lose efficacy by harsh weather.
Optical fiber sensing technology is that 20 century 70s develop rapidly with the development of Fibre Optical Communication Technology, with light
Ripple is carrier, and optical fiber is medium, the New Sensing Technology of perception and the extraneous measured signal of transmission.As measured signal carrier
Light wave and the optical fiber as light wave propagation medium, have the advantages that a series of uniquenesses, other carriers are difficult to compare with medium.
Light wave is not afraid of electromagnetic interference, is easily that various light-detecting devices receive, easily can carry out photoelectricity or electro-optic conversion, easily sends out with height
The modern electronics of exhibition and computer match.Fiber work bandwidth, dynamic range is big, is suitable for remote measuring and controlling, is one
Plant excellent low loss line；Under certain condition, optical fiber is particularly easy to accept measured or field loading, is a kind of excellent
Sensing element；Optical fiber itself is not charged, small volume, and light weight is flexible, electromagnetism interference, and radiation resistance is good, especially suitable
Together in inflammable, explosive, space be strictly limited and the adverse circumstances such as strong electromagnetic under use.Therefore, optical fiber sensing technology one
Come out and just greatly paid attention to, almost obtain research and application in every field, become the guide of sensing technology, promote and sense
Technology flourishes.Optical fiber sensing technology is also progressively applied to railway anti-disaster safety monitoring field, also treats perfect further.Mesh
Front in addition to actively monitoring system and passive monitoring system, in other technical research, common problem is summarized as follows：
（1）Electric measuring method:Using strain resistor, its precision is low, poor anti jamming capability, short life, and scene needs to use
Power supply, signal is difficult to long-distance transmissions, is not suitable for long term monitoring；
（2）GPS method:Using global position system, its field apparatus needs to safeguard, scene needs power supply, distinguishingly
Domain cannot obtain signal, particularly cannot record the STRESS VARIATION within geology, so cannot forecast to landslide, such as
Carry out multiple spot monitoring, then this system cost is expensive；
（3）Image method:Using outdoor pick-up method, relatively more directly perceived.But rain, mist and snowy day are difficult to, can not forecast,
And scene needs power supply, equipment is more easily damaged；
（4）Fiber grating method:Fiber-optic grating sensor has small volume, high precision, life-span length, high reliability, with
The advantages of optical fiber is compatible, is easily embedded to inside object under test, realizes the high accuracy to object, glitch-free real-time monitoring.
Achievable digitized sensor, especially can long-term stable operation under railway depopulated zone, non-Electric region and rugged environment.
In view of southwestern railway mainly in mountain area, it is foggy rainy few people area, plant maintenance is difficult, typically outer again
Install the standby hidden danger existing and damaging and steal, therefore engineering adopts domestic state-of-the-art fiber grating sensing technology.
Content of the invention
Expect to provide and a kind of overcome prior art not enough and meet supervising safely for railway anti-disaster of economical and efficient demand
Field monitoring equipment, signal processing system and the monitoring and alarming system surveyed.
According to embodiments of the invention, there is provided a kind of field monitoring equipment for monitoring Along Railway rockfall,
Including：Fiber-optic grating sensor individuality or the distributive array being made up of it；And fiber Bragg grating (FBG) demodulator, wherein, described light
With described fiber-optic grating sensor or the array that is made up of it is connected fine grating demodulation instrument by signal transmission fiber, described light
Fiber grating sensor is arranged on the precalculated position of rail, falls to having the letter being associated during falling rocks with rail for monitoring in real time
Number, and this signal is returned to described fiber Bragg grating (FBG) demodulator.
Preferably, field monitoring equipment according to embodiments of the present invention, wherein, described fiber-optic grating sensor is optical fiber light
Grid vibrating sensor, for monitoring when falling in railway boundary to having falling rocks, the wavelength of fiber grating is with respect to the spy of fiber grating
Levy the vibratory output signal of wavelength, and be returned to described fiber Bragg grating (FBG) demodulator.
Preferably, field monitoring equipment according to embodiments of the present invention, wherein, the wavelength signals of described fiber grating are real-time
Pass to described fiber Bragg grating (FBG) demodulator.
Preferably, field monitoring equipment according to embodiments of the present invention, described fiber Bragg grating (FBG) demodulator includes：Laser emission
Device, for generating laser；And input/output port, for exporting in signal transmission fiber laser, wherein, described letter
Number Transmission Fibers are connected with fiber-optic grating sensor, and laser returns to described fiber grating after fiber-optic grating sensor reflection
(FBG) demodulator, and wherein, in fiber-optic grating sensor internal reflection, in the case of by outside effect, reflection swashs laser
The wavelength of light changes, and has predetermined dependency between described change and external action.
Preferably, field monitoring equipment according to embodiments of the present invention, described fiber-optic grating sensor can be arranged on ferrum
The downside of rail.
Preferably, field monitoring equipment according to embodiments of the present invention, described fiber Bragg grating (FBG) demodulator can be to from described
The signal that fiber-optic grating sensor reflects is demodulated processing, and draws corresponding wavelength signals.
According to another embodiment of the present invention, there is provided a kind of signal processing system, including：Signal receiving device, is used for
Receive the signal from field monitoring equipment according to claim 1；Processor unit, is arranged through analysis and comes really
Fixed：1）Which fiber-optic grating sensor is each wavelength signals be related to；2）The change of involved wavelength and corresponding representative shaking
Momentum；3）Whether described vibratory output reaches degree of danger.
Preferably, signal processing system according to embodiments of the present invention, described signal processing system also includes storage device,
Wherein prestore：Corresponding relation between fiber-optic grating sensor and characteristic wavelength；Wavelength change and fiber-optic grating sensor
Relation between the vibratory output surveyed；Corresponding relation between vibratory output and the danger that rockfall occurs.
Preferably, signal processing system according to embodiments of the present invention, described processor unit can be also configured to for：
Determine whether to disappear corresponding to the wavelength signals of one or several fiber bragg grating sensors；And according to predetermined logic rule
Then, thus judge it is that where position there occurs rockfall and/or the damage of which bar optical fiber cable.
Preferably, signal processing system according to embodiments of the present invention, described processor unit can be also configured to for
Determine：With respect to the time, whether the speed that described vibratory output increases is more than predetermined threshold value.
According to still another embodiment of the invention, there is provided a kind of monitoring alarm system for Along Railway rockfall
System, including：Above-mentioned field monitoring equipment；Above-mentioned signal processing system；Warning system, determines vibration in described signal processing system
In the case that amount occurs and/or reaches degree of danger, send alarm signal and/or information in one or more ways.
Preferably, monitoring and alarming system according to embodiments of the present invention, described field monitoring equipment and described signal processing
System is remotely connected by wired or wireless mode.
Preferably, monitoring and alarming system according to embodiments of the present invention, described monitoring and alarming system includes one or more
Described field monitoring equipment, and one or more of field monitoring equipment carries to one or more described signal processing systems
The information for collecting.
Field monitoring equipment according to embodiments of the present invention, signal processing system and monitoring and alarming system have access to other
In road, system and road external information system, to improve the outside IWF of this system, also bring guarantor to accurate and effective warning
Barrier, more safety of railway operation increased and escorts.
Field monitoring equipment according to embodiments of the present invention, signal processing system and monitoring and alarming system, it is possible to achieve knot
Structure is simple, the monitoring system of strong adaptability, good stability, is particularly suitable in railway depopulated zone, non-Electric region and severe ring
Long-term stable operation under border.In addition, overall system structure is clear, unified is overall, and independent subsystem each other, and adopts
Two-node cluster hot backup form, can stable in the case of difficulties and hardships run without interruption.Furthermore, the information transfer of the system and process
All employ new technology realization, be that railway disaster preventive system intercommunication is laid a good foundation.By the present invention, not only overcome existing monitoring system
System shortcomings, more railway operation safety and calamity reducing monitoring technology provides a brand-new thinking and direction.
Brief description
Fig. 1 is the general frame figure of Along Railway rockfall monitoring and alarming system according to embodiments of the present invention；
Fig. 2A and 2B is the track installation figure of fiber-optic grating sensor according to embodiments of the present invention；With
Fig. 3 is the flow chart of the process of processor unit execution in signal processing system according to embodiments of the present invention.
Specific embodiment
For making the purpose of the present invention, structure and advantage clearer, below in conjunction with the accompanying drawings to the preferred embodiments of the present invention
Further it is described in detail.
Fig. 1 is the general frame figure of Along Railway rockfall monitoring and alarming system according to embodiments of the present invention.In Fig. 1
Shown Along Railway rockfall monitoring and alarming system is capable of field monitoring monitoring of equipment data, optical fiber transport channel passes
The number of delivering letters, demodulated equipment conversion signal, processing center complete computing, the function of the final other system of simultaneously intercommunication of reporting to the police.Below with
The mode of example is respectively described Each part.
Field monitoring equipment
According to one embodiment of the invention, field monitoring equipment includes：Fiber-optic grating sensor is individual or is made up of it
Distributive array；And fiber Bragg grating (FBG) demodulator.Wherein, described fiber Bragg grating (FBG) demodulator and described fiber-optic grating sensor or by
The array that it is constituted is connected by signal transmission fiber, and described fiber-optic grating sensor is arranged on the precalculated position of rail, uses
Monitor, in real time, the signal being associated with when falling and have falling rocks in railway boundary, and this signal is returned to described fiber grating solution
Adjust instrument.
Preferably, described fiber-optic grating sensor is installed on the downside of rail with embracing dress form, is consolidated with stainless steel screw
Fixed.Fiber-optic grating sensor can be by way of the 25 meters of layings of sensor single track spacing, using dual sensor with alarm strategy
To realize monitoring function.
Specifically, as shown in Figure 2A and 2B, fiber-optic grating sensor can by with parallel track in the way of install in-orbit
The downside in road.However, fiber-optic grating sensor can also otherwise install the precalculated position of in rail as needed.
As an example, fiber-optic grating sensor can be optical fiber raster vibration sensor, work as railway circle for monitoring
When falling in limit to having falling rocks, the wavelength of fiber grating is with respect to the vibratory output signal of the characteristic wavelength of fiber grating, and returns it into
To described fiber Bragg grating (FBG) demodulator.It is also possible, however, to use other kinds of fiber-optic grating sensor is monitoring other physics
Amount is to monitor Along Railway rockfall.In addition, in actual application, can be only when the wavelength of fiber grating is with respect to optical fiber
When the vibratory output signal of the characteristic wavelength of grating is more than predetermined threshold, just this vibratory output signal is returned to described fiber grating solution
Adjust instrument, so that the unnecessary interference signal of exclusion, or only notify adventurous larger falling rocks is passed through for train
Signal.
In one embodiment of the invention, described fiber Bragg grating (FBG) demodulator can include：Laser beam emitting device, for giving birth to
Become laser；And input/output port, for laser is exported in signal transmission fiber.Described signal transmission fiber and optical fiber
Grating sensor is connected, and laser returns to described fiber Bragg grating (FBG) demodulator after fiber-optic grating sensor reflection.Additionally, laser
In fiber-optic grating sensor internal reflection, in the case of by outside effect, the wavelength of reflection laser changes, and institute
State, between change and external action, there is predetermined dependency.Described fiber Bragg grating (FBG) demodulator is to from described fiber-optic grating sensor
The laser reflecting is demodulated processing, and draws the wavelength signals of reflection laser.The wavelength signals obtaining are special through railway
Transmission channel is sent to central processing system.
Central processing system
According to one embodiment of present invention, central processing system（That is, signal processing system）Signal can be included receive
Device and processor unit.Signal receiving device is used for receiving the signal from field monitoring equipment.Processor unit can be arranged
Become to determine that by analysis each wavelength signals is related to which fiber-optic grating sensor, the change of involved wavelength and corresponding
Whether representative vibratory output, described vibratory output reach degree of danger（As shown in Figure 3）.
Additionally, described signal processing system can also include storage device, wherein prestore：Fiber-optic grating sensor with
Corresponding relation between characteristic wavelength；Relation between the vibratory output that wavelength change and fiber-optic grating sensor are surveyed；Vibratory output
And there is the corresponding relation between the danger of rockfall.
Furthermore, processor unit can be also configured to for：Determine whether to pass corresponding to one or several grating fibers
The wavelength signals of sensor disappear；And according to predetermined logic rule, thus judge be where position there occurs rockfall and/
Or which bar optical fiber cable damage.
In addition, processor unit can be also configured to for determining：With respect to the time, the speed that described vibratory output increases is
No more than predetermined threshold value.
In another embodiment of the present invention, central processing system can include：Application server, database service
Device, UPS, the network switching equipment.All devices are two-node cluster hot backup, and dual network passage is it is ensured that system centre is stable.
Wherein, application server is calculated according to real time data, reports to the police to lay down a regulation to be sentenced according to dual sensor
Disconnected warning message, and store information in database server, it is uploaded to terminal use simultaneously.Between application server intentionally
Wire jumper connects, and such as running into fault can switch at short notice, the MTBF（MTBF）Not less than 2 × 105h.
The data such as database server storage historical basis information, warning message, device fault information, and it is furnished with disk battle array
Arrange and to lift the safety of data.Equally, the MTBF（MTBF）Not less than 2 × 105h.
Ups power is introduced by electric supply distribution board using a road AC220v/50Hz power supply, online through two-node cluster hot backup
After UPS, provide the stand-by power supply not less than 0.5 hour, MTBF（MTBF）Not less than 1 × 105H, for central authorities
Processing center equipment provides reliably working power supply.
The network interface that the network switching equipment is provided using communication MSTP Transmission system, network is not less than 2Mbps for bandwidth
Business private network, to realize the data transfer between each monitoring unit, central processing center and end user device.Transmission network is adopted
With Dual-Ethernet, ICP/IP protocol, dual network passage is respectively connected to different business boards, and arbitrary network failure does not affect
System operation.The distribution of IP address should include system-wide unified planning, meet the Ministry of Railways and system-wide disaster monitoring system IP address is divided
Join the related request of management method, standard, and network interface isolation is carried out using fire wall.
Additionally, information needed can be sent to flood-control management information system by central processing system, it is easy to opening of flood control
Exhibition；Information needed can be sent to comprehensive video monitoring subsystem by central processing system, be easy to comprehensive descision rockfall dangerous situation, do
Good timely, accurate measure；The synchronous railway time system of central processing system meeting, is conducive to the standard of data query and warning message
Really property；Information needed can be sent to comprehensive operation dispatching management information system by central processing system, be easy to the overall planning of higher level department
Fortune adjusts work, brings prompting to ensure.In the case of conditions permit, accessible signaling system and traction transformer substation system, directly ginseng
With train operation control, for burst dangerous situation process more timely.
It is directed to meteorological department and the seismological department of road external information system, equally so can be able to be shifted to an earlier date with information sharing
The generation of prediction dangerous situation, thus play the effect of Along Railway rockfall monitoring and early warning.
Device end area
Terminal use is railway department, by industrial computer（Containing display）, monochrome laser printer, alarm box, calculating
Machine tables and chairs etc. form.Work business terminal unit presses stand-alone configuration, using double netcard structure it is ensured that the normal operation of system.Terminal with
Figure, text sound accompaniment ring type of alarm, put forward the warnings such as falling rocks and equipment fault, early warning information and safeguard prediction scheme accordingly.Send out
During raw disaster, eject alert interface, provide and safeguard prediction scheme, remind maintainer to take counter-measure in time.
Systems soft ware and application software composition, wherein systems soft ware mainly includes operating system, database management language, collection
Group's management software, communication middleware etc., application software mainly includes disaster monitoring system application software, anti-virus software and maintenance
Management software etc..Disaster monitoring system application software has tele-experimentation function, is easy to engineering early stage debugging efforts and equipment in the future
Safeguard, but can be limited according to the difference of user class in routine use.Terminal interface checks that real time data, inquiry are gone through
History data, check alarm logging, confirm report to the police etc. function.Accomplish unified graphical interfaces, operation interface is simple, be easy to dimension
Shield.After obtaining the information of disaster generation or the extent of injury by analysis, this information is sent in the form of certain medium
Relevant personnel, such as region are responsible for the personnel of railway security, maintainer, and higher level policymaker.Wherein, supervised by responsible safety
The personnel of control, according to the situation of monitoring, can by wired or wirelessly, such as phone, note, broadcast, warning lamp,
Warned to the relevant personnel or noticed.
According to another embodiment of the present invention, there is provided a kind of monitoring and alarming system for Along Railway rockfall,
It includes：Aforementioned field monitoring equipment；Aforementioned signal processing system；And warning system, it is true in described signal processing system
In the case of determining vibratory output generation and/or reaching degree of danger, send alarm signal and/or information letter in one or more ways
Breath.In this monitoring and alarming system, described field monitoring equipment passes through wired or wireless mode with described signal processing system
Remotely connected.In addition, monitoring and alarming system can include one or more described field monitoring equipment and one or
Multiple field monitoring equipment provide, to one or more described signal processing systems, the information collected.Additionally, monitoring alarm system
System can access system and road external information system in other roads, to improve the outside IWF of this system, also gives accurate and effective
Warning bring guarantee, more safety of railway operation increased and escorts.
To sum up, the system has formulated the communications protocol that a set of opening is good, can extend, and is easy between three subsystems
Data transfer, and be conducive to setting up unified disaster prevention system.
According to the monitoring and alarming system of the present invention, following advantages can be obtained：
1st, reliability：Disaster monitoring system should have high reliability it is ensured that system runs without interruption for 7 × 24 hours.Data
Storehouse server, application server, interface server, the MTBF of storage device（MTBF）Not less than 2 × 105h；
Router, switch, fire wall, the MTBF of ups power（MTBF）Not less than 1 × 105h.Central processing system
System database server, application server, storage device, core network device and monitoring unit main frame should adopt redundant configuration.
Monitoring unit should adopt commercial scale plant.
2nd, maintainable：System hardware equipment should preferably adopt same type using general equipment, function identical plate
Product, be easy to mutually replace, reduce standby redundancy species.
3rd, safety：System should have operating right setting and password authentication function；System should have stronger fault-tolerant and
Resist the ability of disabled user and virus attack.
4th, extensibility：System hardware possesses extensibility；Systems soft ware is using open operating system, application software
Modularized design should be adopted, and possess good autgmentability, support the upgrading of Configuration Online and software.
The functional character of the present invention is not limited to those examples above providing, and is so contemplated that appointing in present invention spirit
The function of meaning species.Although the present invention has been described in connection with preferred embodiments thereof, but be not intended to by this
Invention is limited to specific example set forth herein.On the contrary, the scope of the present invention is limited solely by described claim.
Claims (11)
1. a kind of monitoring and alarming system for Along Railway rockfall, including for monitoring showing of Along Railway rockfall
Field monitoring device and signal processing system, wherein said field monitoring equipment includes：
Fiber-optic grating sensor individuality or the distributive array being made up of it；With
Fiber Bragg grating (FBG) demodulator,
Wherein, with described fiber-optic grating sensor or the array that is made up of it passes through signal light transmission to described fiber Bragg grating (FBG) demodulator
Fibre is connected, and described fiber-optic grating sensor is arranged on the precalculated position of rail, falls to having on monitoring and rail in real time
Associated signal during stone, and this signal is returned to described fiber Bragg grating (FBG) demodulator, wherein, described fiber-optic grating sensor is
Optical fiber raster vibration sensor, for monitoring when falling in railway boundary to having falling rocks, the wavelength of fiber grating is with respect to optical fiber light
The vibratory output signal of the characteristic wavelength of grid, and it is returned to described fiber Bragg grating (FBG) demodulator；
Described signal processing system includes：
Signal receiving device, for receiving the signal from described field monitoring equipment；
Processor unit, is arranged through analysis to determine：
1）Which fiber-optic grating sensor is each wavelength signals be related to；
2）The change of described wavelength and corresponding representative vibratory output；
3）Whether described vibratory output reaches degree of danger,
And storage device, wherein prestore：
Corresponding relation between fiber-optic grating sensor and characteristic wavelength；
Relation between the vibratory output that wavelength change and fiber-optic grating sensor are surveyed；
Corresponding relation between vibratory output and the danger that rockfall occurs.
2. monitoring and alarming system as claimed in claim 1, wherein, the wavelength of described fiber grating passes to described optical fiber in real time
Grating demodulation instrument.
3. monitoring and alarming system as claimed in claim 1, wherein, described fiber Bragg grating (FBG) demodulator includes：
Laser beam emitting device, for generating laser；And
Input/output port, for laser is exported in signal transmission fiber,
Wherein, described signal transmission fiber is connected with described fiber-optic grating sensor, and laser reflects through fiber-optic grating sensor
After return to described fiber Bragg grating (FBG) demodulator.
4. the monitoring and alarming system as any one of Claim 1-3, wherein, described fiber-optic grating sensor is arranged on
The downside of rail.
5. monitoring and alarming system as claimed in claim 4, wherein, described fiber Bragg grating (FBG) demodulator passes to from described fiber grating
The signal that sensor conduction is returned is demodulated processing, and draws the wavelength signals of conducted signal.
6. monitoring and alarming system according to claim 1, wherein, processor unit be also configured to for：
Determine whether to disappear corresponding to the wavelength signals of one or several fiber bragg grating sensors；And
According to predetermined logic rule, thus judge it is that where position there occurs rockfall and/or the damage of which bar optical fiber cable.
7. monitoring and alarming system according to claim 1, wherein, processor unit is also configured to for determining：With respect to
Time, whether the speed that described vibratory output increases is more than predetermined threshold value.
8. monitoring and alarming system according to claim 1, also includes：
Warning system, in the case that described signal processing system determines that vibratory output occurs and/or reaches degree of danger, with one kind
Or various ways send alarm signal and/or information.
9. monitoring and alarming system according to claim 8 is it is characterised in that at described field monitoring equipment and described signal
Reason system is remotely connected by wired or wireless mode.
10. monitoring and alarming system according to claim 8 or claim 9 is it is characterised in that include one or more described scenes prison
Measurement equipment, and one or more of field monitoring equipment provides to one or more described signal processing systems and to collect
Information.
11. monitoring and alarming systems as claimed in claim 8, wherein, described signal processing system access in other roads system or
Road external information system, in described other roads, system includes flood-control management information system, comprehensive video monitoring subsystem, railway time together
One of step net system, running scheduling management system, and described road external information system includes signaling system, traction transformer substation system, gas
As one of system and seismic system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210467220.6A CN103824422B (en) | 2012-11-19 | 2012-11-19 | Along Railway rockfall monitoring and alarming system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210467220.6A CN103824422B (en) | 2012-11-19 | 2012-11-19 | Along Railway rockfall monitoring and alarming system |
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| CN103824422A CN103824422A (en) | 2014-05-28 |
| CN103824422B true CN103824422B (en) | 2017-03-08 |
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| CN104332025B (en) * | 2014-11-19 | 2017-08-18 | 江西西菱轨道交通技术发展有限公司 | One kind is by the accurate monitoring and alarming system of protection face |
| CN105093271B (en) * | 2015-07-29 | 2017-04-26 | 中国矿业大学 | Mine earthquake monitoring method based on fiber gratings |
| CN105788179B (en) * | 2016-03-23 | 2018-01-09 | 重庆交通大学 | A kind of intelligent crag collapse rock-fall disaster monitoring system and method |
| CN105905133A (en) * | 2016-05-11 | 2016-08-31 | 中铁武汉勘察设计研究院有限公司 | Automatic monitoring alarm method and system for railway line obstacle |
| CN106525215A (en) * | 2016-11-03 | 2017-03-22 | 南京派光信息技术有限公司 | Cut slope rockfall monitoring method based on distributed fiber vibration sensing |
| CN107010087A (en) * | 2017-04-10 | 2017-08-04 | 同方威视技术股份有限公司 | High ferro system for monitoring intrusion of foreign bodies and method |
| CN108051126B (en) * | 2017-12-11 | 2019-05-21 | 南通大学 | A kind of Varying-thickness Composite Laminated Plate under Low-Velocity Impact Thin interbed system and its working method |
| CN109895806A (en) * | 2019-03-21 | 2019-06-18 | 北京交通大学 | The detection method of the vibration signal of railroad track |
| CN113306601A (en) * | 2021-05-31 | 2021-08-27 | 湖北铁安检测技术有限公司 | Automatic monitoring system for railway track deformation and application thereof |
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