CN104960549A - Protective unattended system capable of sensing railway field operation on the basis of thin-core optical fiber - Google Patents
Protective unattended system capable of sensing railway field operation on the basis of thin-core optical fiber Download PDFInfo
- Publication number
- CN104960549A CN104960549A CN201510357480.1A CN201510357480A CN104960549A CN 104960549 A CN104960549 A CN 104960549A CN 201510357480 A CN201510357480 A CN 201510357480A CN 104960549 A CN104960549 A CN 104960549A
- Authority
- CN
- China
- Prior art keywords
- module
- thin
- input end
- optical fiber
- signal processing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Train Traffic Observation, Control, And Security (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention provides a protective unattended system capable of sensing railway field operation on the basis of a thin-core optical fiber, which is applicable to the field of railway construction, optical fiber sensing and the like. The system comprises a measuring module and a receiving module, wherein an output end of a laser source (1) of the measuring module is connected with an input end of a phase modulator (2); an output end of the phase modulator (2) is connected with an input end of the thin-core optical fiber (3); a vibration signal is applied to the thin-core optical fiber; an output end of the thin-core optical fiber (3) is connected with an input end of a photoelectric detector (4); an output end of the photoelectric detector (4) is connected with an input end of a signal processing module (5); an output end of the signal processing module (5) is connected with an input end of a wireless transmitting module (6). An output end of a wireless receiving module (7) of the receiving module is connected with an input end of a signal processing module (8); and an output end of the signal processing module (8) is connected with a displaying module (9) and a loudspeaker (10). The protective unattended system capable of sensing the railway field operation on the basis of the thin-core optical fiber, provided by the invention, has the advantages of low energy dependence, anti-electromagnetic interference property, corrosion resistance and the like because the position of a vehicle can be accurately positioned through the adoption of a thin-core optical fiber sensing technology. A phenomenon that protection workers cannot inform construction personnel on the site to avoid accidents in time on lines in mountain areas and curve sections with poor observation conditions can be avoided.
Description
Technical field
The present invention relates to thin-core fibers perception Railway Site operation protection unattended system, be applicable to the field such as construction of railways, Fibre Optical Sensor.
Background technology
Construction of railways is the essential condition ensureing that railway normally runs, and work progress normally carries out with railway transportation simultaneously, therefore ensures that construction of railways has important practical significance safely.
At present, Railway Site operation protection forewarn system mainly contains following method: job scheduling, Ren Gong lookout and satellite positioning tech.Railway transportation can be divided into transport current phase and job execution phase from the time.For construction that is simple, that concentrate, can be arranged in skylight and carry out; For loaded down with trivial details maintenance activity, the skylight point time is difficult to meet the demands, and train interval will be utilized to carry out operation, and the security requirement of at this moment constructing is higher, usually adopts the mode of Ren Gong lookout to solve.But along with the development of high speed railway, train running speed improves constantly, this means that the pre-warning time of train shortens greatly, construction early warning difficulty improves greatly, very easily causes the generation of on-the-spot unexpected dangerous situation.Satellite positioning tech realizes the real-time monitoring to overall All Jobs point, effectively supervises, guarantee job safety to site safety handling situations.Set up mutual monitoring mechanism between operation safe monitoring main frame and protection extension set at the scene simultaneously, break down in system any point, all forbid upper track construction operation, and will protect and handling situations in real time, comprise operating location, workmen's situation, road state and protection situation etc. are uploaded to monitoring and control centre up and down.But the on-the-spot protective device of employing satellite technology there is volume and quality is large, is not easy to carry, poor availability, cannot realizes the shortcomings such as commercialization.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of thin-core fibers perception Railway Site operation protection unattended system.
Technical scheme of the present invention:
A kind of thin-core fibers perception Railway Site operation protection unattended system, this system is made up of measurement module and receiver module two parts.Measurement module is divided into up survey module and down-run survey module, and up survey module is identical with the structure of down-run survey module.The lasing light emitter of measurement module exports the input end of termination phase modulator, the input end of the output termination thin-core fibers of phase modulator, vibration signal is applied on thin-core fibers, thin-core fibers exports termination photodetector input end, the input end of the output termination signal processing module of photodetector, the input end of the output termination wireless transmitter module of signal processing module.The wireless receiving module of receiver module exports the input end of termination signal processing module, the output termination display module of signal processing module and loud speaker.
First up survey module and down-run survey module are arranged in up direction and the down direction 5-6 km of railway track, detect the vibration of Steel rail vehicle in real time.The light that light source sends incides on thin-core fibers after phase modulator modulation, and when not having train through out-of-date, the wavelength of multiple-mode interfence can not change.When track having train through out-of-date, photodetector will detect that the wavelength of multiple-mode interfence changes.Optical signal becomes electric signal after photodetector, and electric signal sends into wireless transmitter module through signal processing module process, and wireless transmitter module launches alerting signal.Wireless receiving module receives the alerting signal of being come by transmission of wireless signals, output to signal processing module, the signal that signal processing module exports is shown by display module, and by sound signal by loud speaker transmission, thus the information that notice camp site has train to pass through.Receiver module is placed on camp site, is usually carried by workmen.In a set of equipment, multiple receiver module can be configured.
Beneficial effect of the present invention: what the present invention proposed can locate the position of sending a car based on thin-core fibers perception Railway Site operation protection unattended system, based on thin-core fibers cognition technology, there is long distance detection, low energy dependence, high environmental resistance, electromagnetism interference, the advantage such as anticorrosive, adopt the mode of high-frequency wireless signals transmission data to realize the early warning arrived to field operation personnel train, whole prealarming process only needs 0.3 second simultaneously.Bi Mian looks at mountain route, the 3 in Curve Segment of condition difference, occurs protection personnel notice site operation personnel generation of dodging accident not prompt enough.
Accompanying drawing explanation
Fig. 1 is based on thin-core fibers perception Railway Site operation protection unattended system structural representation.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
Embodiment one, see Fig. 1, a kind of thin-core fibers perception Railway Site operation protection unattended system, this system is made up of measurement module and receiver module two parts, the input end of the output termination phase modulator 2 of the lasing light emitter 1 of measurement module, the input end of the output termination thin-core fibers 3 of phase modulator 2, vibration signal is applied to thin-core fibers, thin-core fibers 3 exports termination photodetector 4 input end, the input end of the output termination signal processing module 5 of photodetector 4, the input end of the output termination wireless transmitter module 6 of signal processing module 5.The input end of the output termination signal processing module 8 of the wireless receiving module 7 of receiver module, the output termination display module 9 of signal processing module 8 and loud speaker 10.
First up survey module and down-run survey module are arranged in up direction and the down direction 5-6 km of railway track, detect the vibration of Steel rail vehicle in real time.The light that light source sends incides on thin-core fibers after phase modulator modulation, and when not having train through out-of-date, the wavelength of multiple-mode interfence can not change.When track having train through out-of-date, photodetector will detect that the wavelength of multiple-mode interfence changes.The wavelength that photodetector detects changes, and optical signal becomes electric signal after photodetector, then sends into wireless transmitter module after signal processing module process, and wireless transmitter module launches alerting signal.Wireless receiving module receives the alerting signal of being come by transmission of wireless signals, output to signal processing module, the signal that signal processing module exports is shown by display module, and by sound signal by loud speaker transmission, thus the information that notice camp site has train to pass through.
Light source described in the present embodiment is LED light source, and thin-core fibers length is 1cm, and thin-core fibers core diameter is 3 μm, cladding diameter 125 μm, and the modulating frequency of phase modulator is 100Hz.Transmission over radio adopts Wifi network.
Embodiment two, see Fig. 1, a kind of thin-core fibers perception Railway Site operation protection unattended system, this system is made up of measurement module and receiver module two parts, the input end of the output termination phase modulator 2 of the lasing light emitter 1 of measurement module, the input end of the output termination thin-core fibers 3 of phase modulator 2, vibration signal is applied to thin-core fibers, thin-core fibers 3 exports termination photodetector 4 input end, the input end of the output termination signal processing module 5 of photodetector 4, the input end of the output termination wireless transmitter module 6 of signal processing module 5.The input end of the output termination signal processing module 8 of the wireless receiving module 7 of receiver module, the output termination display module 9 of signal processing module 8 and loud speaker 10.
First up survey module and down-run survey module are arranged in up direction and the down direction 5-6 km of railway track, detect the vibration of Steel rail vehicle in real time.The light that light source sends incides on thin-core fibers after phase modulator modulation, and when not having train through out-of-date, the wavelength of multiple-mode interfence can not change.When track having train through out-of-date, photodetector will detect that the wavelength of multiple-mode interfence changes.The wavelength that photodetector detects changes, and optical signal becomes electric signal after photodetector, then sends into wireless transmitter module after signal processing module process, and wireless transmitter module launches alerting signal.Wireless receiving module receives the alerting signal of being come by transmission of wireless signals, output to signal processing module, the signal that signal processing module exports is shown by display module, and by sound signal by loud speaker transmission, thus the information that notice camp site has train to pass through.
Light source described in the present embodiment is ASE wideband light source, and thin-core fibers length is 3cm, and thin-core fibers core diameter is 4 μm, cladding diameter 125 μm, and the modulating frequency of phase modulator is 2000Hz.Transmission over radio adopts Zigbee network.
Embodiment three, see Fig. 1, a kind of thin-core fibers perception Railway Site operation protection unattended system, this system is made up of measurement module and receiver module two parts, the input end of the output termination phase modulator 2 of the lasing light emitter 1 of measurement module, the input end of the output termination thin-core fibers 3 of phase modulator 2, vibration signal is applied to thin-core fibers, thin-core fibers 3 exports termination photodetector 4 input end, the input end of the output termination signal processing module 5 of photodetector 4, the input end of the output termination wireless transmitter module 6 of signal processing module 5.The input end of the output termination signal processing module 8 of the wireless receiving module 7 of receiver module, the output termination display module 9 of signal processing module 8 and loud speaker 10.
First up survey module and down-run survey module are arranged in up direction and the down direction 5-6 km of railway track, detect the vibration of Steel rail vehicle in real time.The light that light source sends incides on thin-core fibers after phase modulator modulation, and when not having train through out-of-date, the wavelength of multiple-mode interfence can not change.When track having train through out-of-date, photodetector will detect that the wavelength of multiple-mode interfence changes.The wavelength that photodetector detects changes, and optical signal becomes electric signal after photodetector, then sends into wireless transmitter module after signal processing module process, and wireless transmitter module launches alerting signal.Wireless receiving module receives the alerting signal of being come by transmission of wireless signals, output to signal processing module, the signal that signal processing module exports is shown by display module, and by sound signal by loud speaker transmission, thus the information that notice camp site has train to pass through.
Light source described in the present embodiment is LD light source, and thin-core fibers length is 5cm, and thin-core fibers core diameter is 5 μm, cladding diameter 125 μm, and the modulating frequency of phase modulator is 1000Hz.Transmission over radio adopts 433Mhz network
Light source of the present invention can use the multi wave length illuminating source of C, L, O, E wave band, and thin-core fibers length can be suitable for situation according to reality and choose, and the device used is commercial devices.Foregoing is only the detailed description to present pre-ferred embodiments; and protection scope of the present invention is not limited to foregoing; those skilled in the art can according to the bright thought of we, and carry out various distortion and modification to the present invention, these should belong to protection scope of the present invention.
Claims (1)
1. one kind is protected unattended system based on the operation of thin-core fibers perception Railway Site, it is characterized in that: this system is made up of measurement module and receiver module two parts, the input end of the output termination phase modulator (2) of the lasing light emitter (1) of measurement module, the input end of the output termination thin-core fibers (3) of phase modulator (2), vibration signal is applied on thin-core fibers, thin-core fibers (3) exports termination photodetector (4) input end, the input end of the output termination signal processing module (5) of photodetector (4), the input end of the output termination wireless transmitter module (6) of signal processing module (5), the input end of the output termination signal processing module (8) of the wireless receiving module (7) of receiver module, the output termination display module (9) of signal processing module (8) and loud speaker (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510357480.1A CN104960549A (en) | 2015-06-25 | 2015-06-25 | Protective unattended system capable of sensing railway field operation on the basis of thin-core optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510357480.1A CN104960549A (en) | 2015-06-25 | 2015-06-25 | Protective unattended system capable of sensing railway field operation on the basis of thin-core optical fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104960549A true CN104960549A (en) | 2015-10-07 |
Family
ID=54214699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510357480.1A Pending CN104960549A (en) | 2015-06-25 | 2015-06-25 | Protective unattended system capable of sensing railway field operation on the basis of thin-core optical fiber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104960549A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106428120A (en) * | 2016-10-24 | 2017-02-22 | 南京派光信息技术有限公司 | Distributed type optical fiber-based real-time monitoring system and method for early warning of arriving of train for operating personnel |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004053163A1 (en) * | 2003-11-26 | 2005-06-30 | Ee-Signals Gmbh & Co. Kg | Radio communication system for wireless transmission of information e.g. for railway construction work, includes transmission device for sending information via mutually spaced frequency bands |
| CN201095371Y (en) * | 2007-11-01 | 2008-08-06 | 中铁八局集团电务工程有限公司 | Railway construction safety prewarning device |
| CN102358335A (en) * | 2011-09-09 | 2012-02-22 | 北京交通大学 | M-Z (Mach-Zehnder) interferometer based real-time positioning system for rapid train |
| CN202904787U (en) * | 2012-07-19 | 2013-04-24 | 中国石油天然气股份有限公司 | Optical fiber perimeter security system based on intermodal interference principle |
| CN103940355A (en) * | 2014-02-26 | 2014-07-23 | 深圳大学 | Intensity-modulating-type optical-fiber Michelson strain sensor and manufacturing method thereof |
-
2015
- 2015-06-25 CN CN201510357480.1A patent/CN104960549A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004053163A1 (en) * | 2003-11-26 | 2005-06-30 | Ee-Signals Gmbh & Co. Kg | Radio communication system for wireless transmission of information e.g. for railway construction work, includes transmission device for sending information via mutually spaced frequency bands |
| CN201095371Y (en) * | 2007-11-01 | 2008-08-06 | 中铁八局集团电务工程有限公司 | Railway construction safety prewarning device |
| CN102358335A (en) * | 2011-09-09 | 2012-02-22 | 北京交通大学 | M-Z (Mach-Zehnder) interferometer based real-time positioning system for rapid train |
| CN202904787U (en) * | 2012-07-19 | 2013-04-24 | 中国石油天然气股份有限公司 | Optical fiber perimeter security system based on intermodal interference principle |
| CN103940355A (en) * | 2014-02-26 | 2014-07-23 | 深圳大学 | Intensity-modulating-type optical-fiber Michelson strain sensor and manufacturing method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 刘云等: ""基于光纤光栅传感的新型磁悬浮列车定位方法的研究"", 《铁道学报》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106428120A (en) * | 2016-10-24 | 2017-02-22 | 南京派光信息技术有限公司 | Distributed type optical fiber-based real-time monitoring system and method for early warning of arriving of train for operating personnel |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104960552A (en) | Unmanned watching system for railway on-site operation protection based on coreless optical fiber sensing | |
| CN205177077U (en) | Crane operation real -time monitoring system | |
| KR20100044339A (en) | Danger detection system for safety of repairman working on railway line and method of detecting danger | |
| US20190236477A1 (en) | Fiber sensing on roadside applications | |
| CN101626496B (en) | Inclined lane track condition wireless mobile video monitoring system | |
| CN105303777A (en) | Tunnel lining structure spalling and collapsing real-time monitoring and alarming system | |
| CN105405248A (en) | Alarm system for safe distance of large mechanical equipment and alarm method thereof | |
| CN204845962U (en) | Based on fiber grating perception railway site operations protection unattended system | |
| CN103743462B (en) | Based on the optical fiber vibration sensing system of double modulation Mach-Zehnder interferometer | |
| JP2010206942A (en) | Automatic train control system | |
| CN104960549A (en) | Protective unattended system capable of sensing railway field operation on the basis of thin-core optical fiber | |
| CN104216365A (en) | Cloud-based remote tunnel surrounding rock displacement monitoring and warning system | |
| CN104960551A (en) | Unattended system for sensing railway field operation and protection based on photonic crystal fiber | |
| CN104960550A (en) | Unmanned watching system for railway on-site operation protection based on double-core optical fiber interferometer | |
| CN204845961U (en) | Based on optic fibre sa genaike interferometer railway site operations protection unattended system | |
| CN204845960U (en) | Based on optic fibre mach interferometer railway site operations protection unattended system morally once | |
| CN106428120A (en) | Distributed type optical fiber-based real-time monitoring system and method for early warning of arriving of train for operating personnel | |
| KR102041949B1 (en) | System for monitoring temperature of railway through distributed temperature optical sensor | |
| CN205417611U (en) | Tyre pressure monitoring system and cableway equipment | |
| CN103847765A (en) | Laser-communication-based anti-collision system for train and utilization method thereof | |
| CN102944219A (en) | Subgrade settlement monitoring system | |
| CN212060605U (en) | Giant falling object monitoring system at tunnel portal based on optical fiber woven mesh | |
| CN204325937U (en) | A kind of Bridge Erector overhead traveling crane distance measurement and simultaneous monitoring system | |
| CN204740079U (en) | Special type vehicle automobile body temperature monitoring device based on fiber grating | |
| CN109131445A (en) | Railcar anticollision monitors safety device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151007 |