CN103634046B - The rail vehicle fiber optic network diagnostic equipment and method and with the rail vehicle of this device - Google Patents
The rail vehicle fiber optic network diagnostic equipment and method and with the rail vehicle of this device Download PDFInfo
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Abstract
The present invention relates to a kind of rail vehicle fiber optic network diagnostic equipment and method and with the rail vehicle of this device, fiber optic network is by central control unit, terminal control mechanism and optical fiber composition, the diagnostic equipment includes optical signal detecting instrument, described optical signal detecting instrument includes OTDR module, close wave filter, the optic fibre input end that two inside of conjunction wave filter communicate connects two described optical fiber respectively, article two, described optical fiber connects described central control unit and terminal control mechanism respectively or connects two described terminal control mechanisms respectively, the test port that the OTDR module described conjunction wave filter of connection and two described optic fibre input ends communicate.OTDR module is accessed in existing train fiber optic network by closing wave filter by the present invention, optical fiber is detected, it is possible to the status information of Real-time Collection optical fiber, obtain the fault message of rail vehicle fiber optic network, support technician's maintenance to fiber optic network, reduces the cost of overhaul.<!--1-->
Description
Technical field
The present invention relates to a kind of diagnostic equipment and method, particularly to a kind of rail vehicle fiber optic network diagnostic equipment and method and with the rail vehicle of this device.
Background technology
Because fiber optic network has, anti-electromagnetic interference capability is strong, effectiveness high, and many rail vehicles have employed the train control network based on optical fiber.But optical fiber is as a kind of secret device, and extraneous physical impacts, less bending radius, optical connector, by dirt etc., are all likely to affect the quality of signal transmission through fiber.Monitoring reliability to fiber optic network path, is not put into train operating safety monitoring range always.Domestic also always failing forms a set of effective train fiber optic network monitoring method and equipment, brings very big difficulty to train operation circuit malfunction elimination and after-sales service.
Due to the hidden cabling of optical fiber, and partial fault only operationally occurs, this brings very big difficulty to light path malfunction elimination.Current treatment measures are that the fibre circuit that will appear from problem is all changed, and this operation takes time and effort, and can increase the cost of repair and maintenance, but fail to find the root of problem.
Particular/special requirement for rail vehicle, it is necessary to control network for rail vehicle optical fiber and carry out optical fibre channel monitoring, monitor the duty of fiber-optic signal in real time.
Summary of the invention
Present invention is primarily aimed at solution the problems referred to above and deficiency, a kind of simple in construction is provided, easy to operate, it is possible to monitoring fiber optic network duty in real time, and real time record position of failure point, fault occur and the rail vehicle fiber optic network diagnostic equipment in geographical position residing for extinction time, train.
Another main purpose of the present invention is in that to provide a kind of rail vehicle fiber optic network diagnostic method.
Another main purpose of the present invention is in that to provide a kind of rail vehicle applying said apparatus.
For achieving the above object, the technical scheme is that
A kind of rail vehicle fiber optic network diagnostic equipment, described fiber optic network is made up of central control unit, terminal control mechanism and optical fiber, the described diagnostic equipment includes optical signal detecting instrument, described optical signal detecting instrument includes OTDR module, for sending detection signal, receive reflected signal, process reflected signal；Close wave filter, for described detection signal is accessed described optical fiber, described reflected signal is separated to described OTDR module, the optic fibre input end that two inside of described conjunction wave filter communicate connects two described optical fiber respectively, article two, described optical fiber connects described central control unit and terminal control mechanism respectively or connects two described terminal control mechanisms respectively, the test port that the described OTDR module described conjunction wave filter of connection and two described optic fibre input ends communicate.
Further, optical signal detecting instrument also includes the GPS module of rail vehicle position and speed during for determining that fault occurs, and described GPS module is connected with described OTDR module.
Further, optical signal detecting instrument also includes the gsm module for being sent out testing result, and described gsm module is connected with described OTDR module.
Another technical scheme of the present invention is:
A kind of rail vehicle fiber optic network diagnostic method utilizing the above-mentioned rail vehicle fiber optic network diagnostic equipment, comprises the following steps:
Step 1, central control unit and terminal control mechanism will be connected and/or the optical fiber that is connected between two terminal control mechanisms is divided into two optical fiber, article two, described optical fiber connects the optic fibre input end that two inside of described conjunction wave filter communicates respectively, article two, the other end of described optical fiber connects described central control unit and terminal control mechanism respectively or is connected said two terminal control mechanism respectively, will close the test port described OTDR module of connection that wave filter communicates with two described optic fibre input ends；
Step 2, optical fiber is detected by OTDR module.
Further, in described step 2, the transmitter module of described OTDR module sends detection signal, detection signal enters optical fiber by closing wave filter, the receiver module of described OTDR module receives the reflected signal that optical fiber returns, and by the processing module of described OTDR module, described reflected signal is processed, obtain the fault information data such as the position of described fiber failure point, time of fault inception, end time, fault information data is outwards transmitted with note form by gsm module.
Further, a step is increased after described step 2, when fault is occurred by the GPS module in described optical signal detecting instrument, the geographical position of rail vehicle and speed information are transferred in OTDR module, the processing module of OTDR module is outwards transmitted with note form by gsm module after being processed in geographical position and speed information.
Another technical scheme of the present invention is:
A kind of rail vehicle applying the above-mentioned rail vehicle fiber optic network diagnostic equipment, head car including two ends respectively saves compartment with middle, described head car is provided with central control unit, it is provided with terminal control mechanism in the described compartment of each joint, it is connected by two optical fiber in opposite direction between described central control unit with described terminal control mechanism and between said two terminal control mechanism, forming the fiber optic network in loop wire loop, every described optical fiber all arranges at least one described rail vehicle fiber optic network diagnostic equipment for its detection.
To sum up content, a kind of rail vehicle fiber optic network diagnostic equipment of the present invention and method and with the rail vehicle of this device, by closing wave filter, OTDR module is accessed in existing train fiber optic network, optical fiber is detected, it is possible to the status information of Real-time Collection optical fiber.By OTDR module, the position of fiber failure point, time of failure, end time are detected, and be sent out by gsm module.By the position of GPS module detection train when breaking down and velocity information.The fault message of rail vehicle fiber optic network can be obtained by the present invention, support technician's maintenance to fiber optic network, reduce the cost of overhaul.
Accompanying drawing explanation
Fig. 1 is the structural representation that the present invention applies on the rail vehicle；
Fig. 2 is that the present invention is at two structural representations saving compartment application；
Fig. 3 is the present invention structural representation at head car with compartment application.
As depicted in figs. 1 and 2, compartment 1, terminal control mechanism 2, optical signal detecting instrument 3, closes wave filter 4, OTDR module 5, GPS module 6, gsm module 7, optical fiber 8, head car 9, central control unit 10.
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, the present invention is described in further detail:
As it is shown in figure 1, rail vehicle such as all kinds of EMUs, including head car 9 and middle each joint compartment 1 at two ends, central control unit 10 is set in head car 9, terminal control mechanism 2 is set in each joint compartment 1.Central control unit 10 on head car 9 is connected with two terminal control mechanisms 2 in two joint compartments 1 of proximity heads car 9 respectively, is connected with each other every a compartment 1 between middle each terminal control mechanism 2 saving compartment 1.It is connected by two optical fiber 8 in opposite direction between central control unit 10 with terminal control mechanism 2, connect again by two optical fiber 8 in opposite direction between two terminal control mechanisms 2, rail vehicle entirety, mutual optical fiber 8 between two central control unit 10 and multiple terminal control mechanism 2 connects, define the loop wire loop of two different directions, namely define the fiber optic network in two loop wire loops in opposite direction.If when the loop wire in a direction is not detected by response, just deliver letters to another direction of loop wire, therefore, it is possible to avoid trouble location.
As shown in Figure 1, every optical fiber 8 is both provided with the diagnostic equipment to its detection, the diagnostic equipment is optical signal detecting instrument 3, every optical fiber 8 mentioned here refers to the segment optical fiber 8 connecting two terminal control mechanisms 2, and the segment optical fiber 8 of connection central control unit 10 and terminal control mechanism 2, it is not necessarily referring to the loop wire loop of a whole piece length.If every optical fiber 8 being interpreted as a unidirectional whole piece loop wire loop, then technical characteristic here is construed as, the each section of optical fiber 8 in this loop wire loop all arranges the diagnostic equipment for this section of optical fiber 8 detection, to every optical fiber 8 also by this definition below this specification.The centrally disposed control device 10 of optical signal detecting instrument 3 or terminal control mechanism 2 are other, and every optical fiber 8 is detected.Optical signal detecting instrument 3 is used for diagnosing optical fiber 8 whether fault, if the position of failure point of the diagnosis optical fiber 8 that breaks down.
As shown in Figures 2 and 3, optical signal detecting instrument 3 two ends are connected with central control unit 10 and terminal control mechanism 2 by optical fiber 8 or are connected with two terminal control mechanisms 2.Optical signal detecting instrument 3 includes closing wave filter 4, OTDR(OpticalTimeDomainReflectometer, optical time domain reflectometer) module 5, GPS(GlobalPositioningSystem, global positioning system) module 6 and GSM(GlobalSystemofMobilecommunication, global system for mobile communications) module 7.
Close wave filter 4 and be mainly used in OTDR module 5 incoming fiber optic 8, close wave filter 4 and include beam splitter, filtration module, compensating module (not shown), communicating inside two optic fibre input end, test port and two optic fibre input ends communicate, and are similar to three-way valve structure.Two optic fibre input ends connect two optical fiber 8 respectively, and the other end of two optical fiber 8 connects central control unit 10 and terminal control mechanism 2 respectively or connects two terminal control mechanisms 2.Test port is connected with OTDR module, makes the detection signal incoming fiber optic 8 that OTDR module sends, and makes the reflected signal returned in optical fiber 8 be separated to OTDR module by closing wave filter 4, is received by OTDR module.Filtration module is filtered for the light in involutory wave filter 4, and the detection signal of input is compensated by compensating module, and the light intensity making input is unattenuated.
OTDR module 5 is mainly used in sending detection signal, receive reflected signal, process reflected signal, OTDR module 5 includes the (not shown)s such as transmitter module, receiver module, processing module, and processing module includes optical time domain reflection and processes chip, GPS process chip, gsm wireless transmitting process chip etc..OTDR module 5 is connected with closing wave filter 4, OTDR module 5 sends order to transmitter module, start OTDR detection, transmitter module sends detection signal, detection signal enters optical fiber 8 by closing wave filter 4, the reflected signal that optical fiber 8 returns is received by the receiver module of OTDR module 5 by closing wave filter 4, the reflected signal received is transferred to processing module, the reflected signal received is processed by processing module, OTDR data are obtained with optical fiber 8 apart from change according to detection signal, analyze OTDR data, convert it to the position of failure point in optical fiber 8, so that it is determined that the position of optical fiber 8 internal fault point, the fault information data such as time of origin and end time.
GPS module 6 is arranged in optical signal detecting instrument 3, is connected with OTDR module 5, when occurring for record and detection fiber 8 fault, and the position of train and velocity information.
Gsm module 7 is arranged in optical signal detecting instrument 3, is connected with OTDR module 5.
The fault information data that the processing module of OTDR module 5 obtains after processing, it is sent out to ground with the form of note by gsm module 7, after ground staff receives fault information data, store, so that after train Hui Ku, by fault information data, fiber optic network is overhauled, provide reference frame for maintenance.Train position during optical fiber 8 fault that GPS module 6 collects and velocity information, after processing module processes, are sent out to ground again by gsm module 7 with the form of note.The diagnostic message being sent out, provides first-hand data for technical staff, when train returns storehouse maintenance, with reference to diagnostic message, can quickly discharge fault.
Passengers inside the car by the form of external computer, can observe the detection case of fiber optic network, accesses notebook computer, install corresponding program on computers on optical signal detecting instrument 3, and the checkout and diagnosis situation of optical signal detecting instrument 3 can show on computers.
A kind of rail vehicle fiber optic network diagnostic method utilizing the above-mentioned rail vehicle fiber optic network diagnostic equipment to realize, has following steps:
Step 1, optical fiber 8 between central control unit 10 and terminal control mechanism 2 and between two terminal control mechanisms 2 is divided into two optical fiber 8, article two, connected by optical signal detecting instrument 3 in the middle of optical fiber 8, concretely, article two, optical fiber 8 is respectively connected to two optic fibre input ends closing wave filter 4 of optical signal detecting instrument 3, is connected with OTDR module 5 by the test port closing wave filter 4.
Step 2, optical fiber 8 is detected by optical signal detecting instrument 3, the transmitter module of OTDR module 5 sends detection signal, detection signal enters optical fiber 8 by closing wave filter 4, OTDR module 5 receiver module receives the reflected signal returned from optical fiber 8, reflected signal is carried out data process by processing module, it is determined that the fault information data such as the position of optical fiber 8 trouble point, time started, end time, optical fiber 8 fault information data is sent earthward with note form by gsm module 7.
Step 3, when optical fiber 8 fault is occurred by the GPS module 6 within optical signal detecting instrument 3, the geographical position of rail vehicle and speed information are transferred in OTDR module 5, the processing module of OTDR module 5 is sent with note form earthward by gsm module 7 after processing the information that GPS module 6 is transmitted through.
By the above-mentioned diagnostic equipment for rail vehicle fiber optic network and diagnostic method, effectively the fiber optic network of rail vehicle can be carried out monitoring in real time and diagnosis, when optical fiber 8 breaks down, can by diagnostic result, during such as the position of optical fiber 8 trouble point, time of fault inception, end time, fault, the fault message such as train speed per hour, position is being sent out with note form, or passengers inside the car are by accessing computer to optical signal detecting instrument 3, carry out inspections and examinations situation.Maintenance for fiber optic network in the future provides reference data, and support technician solves to discharge fault, it is not necessary to optical fiber 8 circuit whole piece is changed, has saved the cost of overhaul.
The present embodiment also discloses a kind of rail vehicle applying the above-mentioned rail vehicle fiber optic network diagnostic equipment, and this rail vehicle includes the above-mentioned rail vehicle fiber optic network diagnostic equipment, and applies above-mentioned rail vehicle fiber optic network diagnostic method.
As it has been described above, in conjunction with the plan content given by accompanying drawing, it is possible to derive similar technical scheme.In every case it is the content without departing from technical solution of the present invention, according to any simple modification, equivalent variations and modification that above example is made by the technical spirit of the present invention, all still falls within the scope of technical solution of the present invention.
Claims (6)
1. a rail vehicle with the fiber optic network diagnostic equipment, head car including two ends respectively saves compartment with middle, it is characterized in that: on described head car, be provided with central control unit, it is provided with terminal control mechanism in the described compartment of each joint, it is connected by two optical fiber in opposite direction between described central control unit with described terminal control mechanism and between two described terminal control mechanisms, forming the fiber optic network in loop wire loop, every described optical fiber all arranges at least one described fiber optic network diagnostic equipment for the described rail vehicle of its detection；
The described diagnostic equipment includes optical signal detecting instrument, and described optical signal detecting instrument includes OTDR module, is used for sending detection signal, receives reflected signal, processes reflected signal；
Close wave filter, for described detection signal is accessed described optical fiber, described reflected signal is separated to described OTDR module；
The optic fibre input end that two inside of described conjunction wave filter communicate connects two described optical fiber respectively, article two, described optical fiber connects described central control unit and terminal control mechanism respectively or connects two described terminal control mechanisms respectively, the test port that the described OTDR module described conjunction wave filter of connection and two described optic fibre input ends communicate.
2. a kind of rail vehicle with the fiber optic network diagnostic equipment according to claim 1, it is characterized in that: described optical signal detecting instrument also includes the GPS module of rail vehicle position and speed during for determining that fault occurs, and described GPS module is connected with described OTDR module.
3. a kind of rail vehicle with the fiber optic network diagnostic equipment according to claim 1, it is characterised in that: described optical signal detecting instrument also includes the gsm module for being sent out testing result, and described gsm module is connected with described OTDR module.
4. the fiber optic network diagnostic method of the rail vehicle with the fiber optic network diagnostic equipment utilized as described in any one of claims 1 to 3, it is characterized in that: on described head car, be provided with central control unit, it is provided with terminal control mechanism in the described compartment of each joint, it is connected by two optical fiber in opposite direction between described central control unit with described terminal control mechanism and between two described terminal control mechanisms, form the fiber optic network in loop wire loop, every described optical fiber all arranges the described fiber optic network diagnostic equipment of at least one described rail vehicle being its detection；
Central control unit and terminal control mechanism will be connected and/or the optical fiber that is connected between two terminal control mechanisms is divided into two optical fiber, article two, described optical fiber connects the optic fibre input end that two inside of described conjunction wave filter communicates respectively, article two, the other end of described optical fiber connects described central control unit and terminal control mechanism respectively or is connected said two terminal control mechanism respectively, will close the test port described OTDR module of connection that wave filter communicates with two described optic fibre input ends；
Optical fiber is detected by OTDR module.
5. fiber optic network diagnostic method according to claim 4, it is characterized in that: the transmitter module of described OTDR module sends detection signal, detection signal enters optical fiber by closing wave filter, the receiver module of described OTDR module receives the reflected signal that optical fiber returns, and by the processing module of described OTDR module, described reflected signal is processed, obtain the position of described fiber failure point, time of fault inception, end time fault information data, fault information data is outwards transmitted with note form by gsm module.
6. fiber optic network diagnostic method according to claim 4, it is characterized in that: when fault is occurred by the GPS module in described optical signal detecting instrument, the geographical position of rail vehicle and speed information are transferred in OTDR module, the processing module of OTDR module is outwards transmitted with note form by gsm module after being processed in geographical position and speed information.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP2945318A1 (en) * | 2014-05-16 | 2015-11-18 | Televic Rail NV | Communication system for use in a railway vehicle |
| US10075232B1 (en) | 2017-04-18 | 2018-09-11 | Cisco Technology, Inc. | Detecting fiber optic breaks using autonomous vehicles |
| CN112751720B (en) * | 2019-10-31 | 2022-05-20 | 中车株洲电力机车研究所有限公司 | Train backbone network system, fault detection method and storage medium |
| CN111147133B (en) * | 2019-12-24 | 2021-09-14 | 武汉理工光科股份有限公司 | Real-time monitoring system and method for traffic flow based on phi-OTDR |
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| CN1536790A (en) * | 2003-04-10 | 2004-10-13 | 上海国欣科技发展公司 | Optical cable line real-time monitoring system and its method |
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| US20090263122A1 (en) * | 2008-04-22 | 2009-10-22 | Roger Jonathan Helkey | Method and apparatus for network diagnostics in a passive optical network |
| KR101536375B1 (en) * | 2008-06-02 | 2015-07-13 | 스미토모 덴키 고교 가부시키가이샤 | Beam path monitoring device, and beam path monitoring system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1536790A (en) * | 2003-04-10 | 2004-10-13 | 上海国欣科技发展公司 | Optical cable line real-time monitoring system and its method |
| CN101924962A (en) * | 2010-08-25 | 2010-12-22 | 中兴通讯股份有限公司 | System and method thereof for detecting fiber faults |
| CN203377882U (en) * | 2013-06-26 | 2014-01-01 | 南车青岛四方机车车辆股份有限公司 | Diagnostic device used for rail vehicle fiber network and rail vehicle employing diagnostic device |
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