CN103115647B - Monitoring system for rail transit bow net operating condition - Google Patents
Monitoring system for rail transit bow net operating condition Download PDFInfo
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- CN103115647B CN103115647B CN201310041079.8A CN201310041079A CN103115647B CN 103115647 B CN103115647 B CN 103115647B CN 201310041079 A CN201310041079 A CN 201310041079A CN 103115647 B CN103115647 B CN 103115647B
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Abstract
The present invention provides a kind of monitoring system for rail transit bow net operating condition, belongs to the detection technique field of track traffic.This monitoring system includes car-mounted terminal, ground detection center, its data communication network transmitted for the information realizing car-mounted terminal and ground detection center.Car-mounted terminal includes vehicle carried data collecting module, and the bow net operating mode of Pantograph-OCS system is monitored with realization by it for Pantograph-OCS system carries out bow net work information collection, and is simultaneously used for gathering train driving integrated information；Also include vehicle-mounted analysis alarm module, it is used for storing bow net work information and train driving integrated information and carrying out Data Environments based on image and train driving integrated information, with judge bow net operating mode whether abnormal and when bow net operating mode is judged as exception alert.Bow net operating mode is associated analyzing and processing by ground detection center based on described image and the train driving integrated information from one or more car-mounted terminals.
Description
Technical field
The invention belongs to the detection technique field of track traffic, relate to the bow net working-condition monitoring system of the Pantograph-OCS system of track traffic.
Background technology
Current most Rail Transit System uses power-actuated train, generally, form the transport condition of rated voltage/electric current by contact net system, applied by the distribution system flowing to train by train pantograph parts again, thus provide energy for train operation.Therefore, pantograph and the interphase interaction of contact net, define ground and fix the tie between power supply unit and mobile vehicle application, and the two mainly constitutes the most defined " Pantograph-OCS system ".
Pantograph-OCS system is being formed while electric loop, and in operation, contact net and pantograph must keep good Dynamic link library operating mode, train the most just can be made to have good by stream condition.
But, in track traffic circulation, usually because the working condition between pantograph and contact net occurs abnormal, produce the fault of single system, have a strong impact on properly functioning operation, wherein it is no lack of pantograph or the respective reason of contact net system, but more reflect is the operating mode existing problems that there is pantograph with the abutment (namely abutment of Pantograph-OCS system) of contact net.During being flowed, pantograph and contact net are the most closely related in mechanical aspects and electric aspect, when vehicle runs, electric spark easily occurs between relative sliding contact body, it is because the contact of two energisings in slip can disengage in short-term, now, electric current punctures the air-gap between two contacts, thus produces phenomenon of arc discharge.Therefore, the appearance of the phenomenon of arc discharge just explanation situation that likely impact is normally flowed occurs, serious will cause the generation of accident between pantograph, affect the properly functioning of train；Arcing event is also the important behaviour aspect of bow net operating mode.
Thus it is guaranteed that the operating mode of Pantograph-OCS system fault good, minimizing Pantograph-OCS system is one of key factor reducing rail transportation operation fault.Further, along with the speed of train is more and more higher, the probability that pantograph separates with contact net is the biggest, and bow net electric arc the most easily produces, and bad the caused harm of bow net operating mode of Pantograph-OCS system is the most serious.So, the operating condition (namely bow net operating mode) between pantograph and contact net is monitored the ever more important that seems.
Currently used monitoring system for rail transit bow net operating condition, simply simply uses the duty that photographic head coordinates the binding site of DVR, real time record pantograph and contact net；After train completes to run Hui Ku, the video data of record is downloaded to monitor workstation by staff, take manual type to check whether the generation of phenomenon of arc discharge again, and judge to occur the Position Approximate of phenomenon of arc discharge, thus the maintenance etc. for Pantograph-OCS system provides foundation.This track traffic bow net monitoring of working condition mode has the disadvantages that significantly
First, owing to the time of train operation is longer, the video data volume of record is the hugest, the most manually checks judgement phenomenon of arc discharge, and difficulty is big, the cost time is many, complex operation, efficiency are the lowest；
Second, manual reviews judges that phenomenon of arc discharge subjectivity is strong, and be easily caused judge inaccurate；
3rd, the monitoring of all bow net operating modes is to complete after train operation, there is no real time on-line monitoring function, thus it is difficult to find timely and effectively or predict the fault of Pantograph-OCS system, it is out of order before the symptom of a trend carrying out manual reviews, in the case of bow net operating mode is poor, it is likely that the train of follow-up operation process there occurs fault because bow net operating mode is bad.
In view of this, it is necessary to propose a kind of novel track traffic bow network monitoring system.
Summary of the invention
An object of the present invention is, it is achieved the automatic monitoring of bow net operating mode.
A further object of the present invention is, improves the monitoring accuracy of bow net operating mode.
The a further object of the present invention is, it is achieved the on-line monitoring of bow net operating mode and timely warning function.
Another object of the present invention is, it is achieved the fault pre-alarming function of bow net operating mode.
For realizing object above or other purposes, the present invention provides a kind of monitoring system for rail transit bow net operating condition, and for being monitored the bow net operating mode of the Pantograph-OCS system of one or more track circuit, this monitoring system includes:
Car-mounted terminal, comprising:
Vehicle carried data collecting module, it for carrying out bow net work information collection to realize monitoring the bow net operating mode of Pantograph-OCS system to Pantograph-OCS system, and is simultaneously used for gathering train driving integrated information,
Vehicle-mounted analysis alarm module, it for the bow net work information that gathered of storage and train driving integrated information and carries out Data Environments based on described bow net work information and train driving integrated information, with judge bow net operating mode the most abnormal and when bow net operating mode is judged as exception alert；
Ground detection center, bow net operating mode is associated analyzing and processing by it based on described bow net work information and the train driving integrated information from one or more described car-mounted terminals；And
Data communication network, it is for realizing the information transmission between described car-mounted terminal and ground detection center.
According to the monitoring system for rail transit bow net operating condition of one embodiment of the invention, wherein, described bow net work information includes visible light video image and specific frequency spectrum image；Described vehicle carried data collecting module includes:
For gathering the visible light video image harvester of the visible light video image of Pantograph-OCS system；And
For the specific frequency spectrum harvester shooting specific frequency spectrum image when Pantograph-OCS system produces arcing.
Further, it is preferable that described specific frequency spectrum harvester is ultraviolet image sensor and/or infrared image sensor.
In one embodiment, described bow net operating mode situation is reflected by the arcing event class corresponding to the arcing on Pantograph-OCS system.
In the monitoring system for rail transit bow net operating condition of the most described embodiment, in described Data Environments, including step:
Differentiate the arcing event class corresponding to the frame corresponding to each arc phenomenon or multiframe frame specific frequency spectrum image；
If arcing event class is more than or equal to intended level, send described warning message the most online.
Further, described warning message include to should the arcing moment specific frequency spectrum picture frame, to should the arcing moment visible light video image frame and/or to should the train driving integrated information in arcing moment.
Further, it determines during described arcing event class, the tonal gradation at least based on specific frequency spectrum picture frame divides.
Further, it determines during described arcing event class, the Pantograph-OCS system being at least additionally based upon train driving integrated information is carried out grade classification by stream current data.
Preferably, if described Pantograph-OCS system is less than predetermined value by the change of stream current data, it determines described arcing event is to the grade not affecting train operation.
Further, it is characterised in that described arcing event class includes following four grade:
Represent the smooth first order,
Represent and produce little electric arc and do not affect the second level of train operation,
Represent big electric arc but do not affect the third level of train operation,
Represent big electric arc and affect the fourth stage of train operation；
Wherein, arcing event class is more than or equal to the third level, sends described warning message the most online.
According to the monitoring system for rail transit bow net operating condition of further embodiment of this invention, wherein, described train driving integrated information includes at least including that train speed, Pantograph-OCS system are by stream current data and train position information.
In the monitoring system for rail transit bow net operating condition of the most described any embodiment, described vehicle carried data collecting module includes:
For gathering the Pantograph-OCS system faradic current harvester by stream current data；And/or
Train speed harvester；
Wherein said train position information calculates according at least to described train speed.
Further, preferably, described car-mounted terminal also includes Wireless communication interface module, this Wireless communication interface module operationally accesses described data communication network system, with data obtained by least transmitting described bow net work information, train driving integrated information and described Data Environments to described ground detection center.
Further, it is preferable that described warning message carries out real-time Transmission, described bow net work information and train driving integrated information by described data communication network to be completed to carry out off-line transmission after predetermined running enters station or parking lot at described train.
According to the monitoring system for rail transit bow net operating condition of yet another embodiment of the invention, wherein, described vehicle-mounted analysis alarm module includes: master controller, sub module stored and analysis submodule；Wherein, described sub module stored is used for storing described bow net work information and train driving integrated information, and described analysis submodule is used for carrying out described Data Environments, and described master controller is at least used for controlling to send described warning message.
Monitoring system for rail transit bow net operating condition according to yet another embodiment of the present invention, wherein, described ground detection center includes that data storage server, association analysis process and calculates device, operation terminal and application system server, and described data storage server, association analysis process and calculate device, realize connecting by rail line LAN between operation terminal and application system server.
In the monitoring system for rail transit bow net operating condition of the most described any embodiment, preferably, described association analysis processes for the arcing event of multiple reflection bow net operating modes the most in the same time is compared analyzing and processing, with accurate measurements bow net operating mode the fault of early warning bow net operating mode.
In the monitoring system for rail transit bow net operating condition of the most described any embodiment, obtained by described bow net work information, train driving integrated information and described Data Environments that described ground detection center sends over based on multiple car-mounted terminals, data carry out described association analysis process.
In the monitoring system for rail transit bow net operating condition of the most described any embodiment, it is preferable that described ground detection center is additionally operable to confirm described arcing event class.
In the monitoring system for rail transit bow net operating condition of the most described any embodiment, it is preferable that described arcing event class is segmented by described ground detection center further, and determine whether the arcing event class of segmentation corresponding to described arcing.
In the monitoring system for rail transit bow net operating condition of the most described any embodiment, preferably, in described association analysis processes, the stream current data that is subject to of the visible light video image frame in corresponding for arcing event moment, corresponding moment is associated by described ground detection center.
The solution have the advantages that, the Data Environments to bow net operating mode can be realized by car-mounted terminal, and alert essentially in real time, and analyzing and processing can be associated by ground detection center based on many collections data, the scientific analysis to bow net operating mode can be realized process, and obtain affecting the factor of bow net operating mode, while accurate measurements bow net operating mode, moreover it is possible to realize the fault pre-alarming to bow net operating mode；And, the analysis process of above bow net operating mode can be automatically performed substantially, the automaticity of bow net monitoring of working condition is high, while improving the efficiency of bow net monitoring of working condition, can be suitably introduced into artificial judgment to analyze the fault case of accumulation to revise and to improve its accuracy.
Accompanying drawing explanation
From combine accompanying drawing described further below, it will making the above and other purpose of the present invention and advantage be more fully apparent from, wherein, same or analogous key element is adopted and is indicated by the same numeral.
Fig. 1 is the structural representation of the monitoring system for rail transit bow net operating condition according to one embodiment of the invention.
Fig. 2 is the modular structure schematic diagram of car-mounted terminal shown in Fig. 1, the car-mounted terminal of Fig. 3 schematic diagram 2 embodiment scheme of installation ON TRAINS.
Fig. 3 is that the car-mounted terminal of Fig. 2 embodiment installs schematic diagram ON TRAINS.
Fig. 4 is the bow net monitoring of working condition handling process schematic diagram of the car-mounted terminal according to one embodiment of the invention.
Fig. 5 is the schematic diagram that between car-mounted terminal and ground detection center, cordless communication network by an embodiment carries out data communication.
Detailed description of the invention
Be described below is that the multiple of the present invention may a part in embodiments, it is desirable to provide the basic understanding to the present invention, is not intended to confirm the crucial of the present invention or conclusive key element or limits scope of the claimed.Easy to understand, according to technical scheme, under the connotation not changing the present invention, one of ordinary skill in the art can propose other implementations that can mutually replace.Therefore, detailed description below and accompanying drawing are only the exemplary illustrations to technical scheme, and are not to be construed as the whole of the present invention or are considered as defining or limiting technical solution of the present invention.
In explained below, clear and simple and clear for describe, all multiple parts shown in figure are not described.The disclosure being fully able to realize of the present invention is provided for those of ordinary skill in the art shown in the drawings of multiple parts.To those skilled in the art, the most multipart operation is all to be familiar with and obvious.
In this article, " Pantograph-OCS system " is primarily referred to as train pantograph and contact net, and train pantograph is subject to stream to provide electric energy to train from contact net.
Fig. 1 show the structural representation of the monitoring system for rail transit bow net operating condition according to one embodiment of the invention.The monitoring system for rail transit bow net operating condition 10 of this embodiment goes in the track traffic of use Pantograph-OCS system, its object is to good operation for track traffic and provides safeguard.Track traffic can be the most such as subway, light rail, electric railroad traffic etc., it is also possible to for other according to the rules track circuit travel and use Pantograph-OCS system provide drive required electric power track traffic.Monitoring system for rail transit bow net operating condition 10 includes the multiple car-mounted terminals 110 on train, cordless communication network 130 and ground detection center 150 basically.
Multiple car-mounted terminals 110 can be concurrently placed on a train, monitoring system for rail transit bow net operating condition 10 can also include the multiple car-mounted terminals 110 on many trains on same track circuit corresponding to difference, can analogically, monitoring system for rail transit bow net operating condition 10 can also include the multiple car-mounted terminals 110 on many trains on a plurality of track circuit.Specifically, it is relevant that the quantity of car-mounted terminal 110 is defined administration train operation region with the ground detection center 150 of this monitoring system 10, and ground detection center 150 is defined administration train operation region and can realize by arranging cordless communication network 130.Each car-mounted terminal 110 in monitoring system for rail transit bow net operating condition 10 can be realized and ground detection center 150 radio communication in real time or in non real-time by cordless communication network 130.It is to be appreciated that the information transmission form at car-mounted terminal 110 and ground detection center 150 is not limited to the cordless communication network 130 of this embodiment, it can also be other kinds of data communication network.
Fig. 2 show the modular structure schematic diagram of car-mounted terminal shown in Fig. 1, the car-mounted terminal of Fig. 3 schematic diagram 2 embodiment scheme of installation ON TRAINS.Car-mounted terminal 110 has collection, analyzes, stores and the function of data communication as shown in Figure 1, specifically, embodiment as shown in Figure 2, being provided with vehicle carried data collecting module on car-mounted terminal 110, it includes but not limited to visible images harvester 111, specific frequency spectrum harvester 112, faradic current harvester 113 and train speed harvester 114.Wherein, it is seen that light image harvester 111, specific frequency spectrum harvester 112 are vehicle-mounted video recording apparatus, can be used to carry out image acquisition；As shown in Figure 3, visible images harvester 111 and specific frequency spectrum harvester 112 are all directed at (the i.e. abutment between pantograph and contact net, place that arcing easily produces, namely operating mode application point, namely application point) carry out bow net work information (hereinafter referred to as " work information ") collection, so that bow net operating mode to be monitored.
Visible images harvester 111 can gather the bow net image of the Pantograph-OCS system relevant to application point, specifically it can use high-definition camera, abutment between its photographic head alignment pantograph and contact net is installed, in train travelling process, can shoot incessantly, thus Real-time Collection at least includes the visible light video information of Pantograph-OCS system contact point.By visible images harvester 111 gathered visible light video information, can read the relevant information such as state at the situation of contact net, the situation of pantograph, abutment, processing for the association analysis at ground detection center provides the Information base judged.
Specific frequency spectrum harvester 112 specifically can use the high speed imaging sensor of specific frequency spectrum, its arc phenomenon produced when perception contact point arcing.According to the feature of electric arc produced during arcing, select suitable sensor realize to electric arc accurate, clearly catch.It is understood that be is, specific frequency spectrum harvester 112 is only the specific embodiment in arc phenomenon harvester, those skilled in the art are according to the requirement of arc phenomenon shooting, collecting, other kinds of arc phenomenon harvester can be selected, and, can develop according to the technology of arc phenomenon harvester, and select arc phenomenon to capture more accurate, the clearer harvester of perception with updating.In the preferred case, specific frequency spectrum harvester 112 can use ultraviolet image sensor, the characteristic of the ultraviolet that the electric arc that ultraviolet image sensor produces when utilizing arcing is sent, shoots electric arc picture, and the picture shot based on this UV-radiation-sensitive can clearly characterize arc event image.In further preferred embodiment, specific frequency spectrum harvester 112 can be the multiple imageing sensors including multiple different spectral, such as, include ultraviolet image sensor and infrared image sensor simultaneously, ultraviolet image sensor is for catching the ultraviolet picture when application point grabbing Pantograph-OCS system produces arcing, infrared image sensor is for catching the infrared picture when application point grabbing Pantograph-OCS system produces arcing, the connected applications of multiple pictures, can more clearly characterize arcing event, thus obtain monitoring of working condition result more accurately.
Continue as shown in Figures 2 and 3, visible images harvester 111 and specific frequency spectrum harvester 112 specifically can be connected to vehicle-mounted analysis alarm module 117 by USB2.0 interface, its floor data about Pantograph-OCS system gathered respectively (such as view data) can transmit to vehicle-mounted analysis alarm module 117 by this interface, and then or in its sub module stored 1172 store, or its analyze submodule 1173 carried out vehicle-mounted end analyzing and processing in real time.When installing visible images harvester 111 and specific frequency spectrum harvester 112, their installation site, angles etc. all can affect the precision of image monitoring, and then affect the accuracy of bow net monitoring of working condition, therefore, need to be installed the position, detection target area of the alignment lens Pantograph-OCS system of visible images harvester 111 and specific frequency spectrum harvester 112 as much as possible, reduce the adverse effect of background area as far as possible, target area is made to be suitable for mutually with size position in gathering image, and make the image relative target region obtained in running at train substantially keep consistent.Additionally, vehicle carried data collecting module can also be for the offer auxiliary device of visible images harvester 111 and specific frequency spectrum harvester 112, such as, for visible images harvester 111, lighting source is installed, when specific frequency spectrum harvester 112 is infrared image sensor, it is also possible to for it, auxiliary device of suppression interference is installed.
Continuing as shown in Figures 2 and 3, vehicle carried data collecting module also includes faradic current harvester 113 and train speed harvester 114.Normally, in the abnormal arcing event caused of bow net operating mode, the size by stream electric current can be caused to change or fluctuate, in this embodiment, faradic current harvester 113 can be used to gather Pantograph-OCS system during train driving and is subject to stream current data, for discriminatory analysis arcing event.Faradic current harvester 113 specifically can be, but not limited to selection and uses such as single flow current inductor (also referred to as open loop type Hall current sensor, it uses Hall element principle), it has the features such as pinpoint accuracy, high linearity, high integration, volume little, simple in construction, working stability.It is appreciated that by faradic current harvester 113 current parameters of the Pantograph-OCS system when arc event occurs changes, further provides for basic data for accurately analyzing the arcing event of bow net operating mode.
Train speed harvester 114 can gather the velocity information of train operation, such as, the train running speed corresponding to arcing event generation time；It is to be further understood that, those skilled in the art are based on train Positioning Technology, usually can carry out according to the operation time, train section residing for train, and velocity information of based on train, calculate the positional information of train, thus accurately find out the train position corresponding to arcing event generation time, also and then the positional information of contact net of Pantograph-OCS system can be found out.In this embodiment, train speed harvester 114 can use velocity sensor.It should be noted that, the above calculates process (train position calculates and speed calculation) and can complete in master controller 1174, certainly, in other embodiments, it is also possible to calculated in the analysis processing computer at ground detection center 150 as shown in Figure 1.
Specifically, faradic current harvester 113 and train speed harvester 114 can be connected to vehicle-mounted analysis alarm module 117 by serial line interface.Therefore, Pantograph-OCS system all can be stored by stream current data, train speed data, train position information etc. in sub module stored 1172, and processing for the vehicle-mounted end bow net performance analysis process of vehicle-mounted analysis alarm module 117 and the bow net performance analysis at ground detection center 150 provides data basis.
It is to be noted, faradic current harvester 113 in car-mounted terminal 110 and train speed harvester 114 etc. can be to be exclusively used in this bow net working-condition monitoring system to arrange for gathering the equipment of train driving integrated information, can also be for the equipment possessing this function arranged in other any systems in train, such as, if train self can gather Pantograph-OCS system by stream current data, train speed data, the train driving integrated informations such as train position information, vehicle-mounted analysis alarm module 117 directly can obtain these information (such as from train, train speed and train position information can obtain from train detection systems or fortune Ore-controlling Role), can be understood as being integrated in train for gathering the equipment of train driving integrated information.Therefore, to arrange form the most restrictive for the faradic current harvester 113 in car-mounted terminal 110 and train speed harvester 114.
It should be noted that, the Pantograph-OCS system that above example detects or calculates is belonged to train driving integrated information by stream current data, train speed data, train position information etc., and the data calculated are it can be appreciated that indirectly gather or detect the train driving integrated information drawn.The concrete kind of train driving integrated information is not limited to be given above data class, according to accurately carrying out the needs of bow net performance analysis process, can increase the information category included by train driving integrated information, correspondingly, can increase data acquisition equipment.Therefore, the harvester included by vehicle carried data collecting module is not limited to above example.Train driving integrated information is also not necessarily limited to the present embodiment, and any relevant information that can reflect bow net operating mode in addition to image information all can be defined as train driving integrated information.
It will be appreciated that, the data message that each device in vehicle carried data collecting module is gathered can be by the relatedness of time dimension, realize association coupling each other, thus find out the image corresponding to arcing event generation time and train driving integrated information easily.
Continue as in figure 2 it is shown, vehicle-mounted analysis alarm module 117 includes power supply submodule 1171, sub module stored 1172, analyzes submodule 1173, master controller 1174.Power supply submodule 1171 can by each device in each submodule of vehicle-mounted analysis alarm module 117 and the car-mounted terminal 110 being connected with vehicle-mounted analysis alarm module 117 operation provide normal power supply, its specifically the 110 of train volts of DC sources can be converted to each submodule or each device required for work power.Master controller 1174 can carry out data conversion etc. and process the data message that each device in vehicle carried data collecting module is gathered, comply with the data form analyzed required for submodule 1173, master controller 1174 can also control vehicle carried data collecting module (realizing data capture management), Wireless communication interface module (realizing telecommunication management) etc., such as, the beginning of data acquisition, end, the wireless transmission of data, the transmission etc. of warning message.Specifically, master controller 1174 can be CPU.
The image gathered and train driving integrated information can directly or be stored in sub module stored 1172 after format transformation.Analysis submodule 1173, when carrying out vehicle-mounted end analyzing and processing, transfers related data from sub module stored 1172, is analyzed processing.In one embodiment, bow net operating mode is reflected with arcing event, analyze submodule 1173 and first analyze the grade judging arcing event according to electric arc picture (captured by specific collection of illustrative plates harvester), such as, arcing event class can be, but not limited to be defined as level Four: the first order represents smooth (substantially the least without electric arc or electric arc), the second level represents the little electric arc of generation, and the third level represents big electric arc but do not affects train operation, and the fourth stage represents big electric arc and affects train operation；The tonal gradation correspondence of the digital signal according to electric arc picture (namely specific frequency spectrum image) differentiates arc event grade (the corresponding corresponding arcing event class of corresponding tonal range value), if it is determined that arc event grade is more than or equal to the third level, then represent and be likely to affect train operation, analyze submodule 1173 and send instruction to master controller 1174, it is made to control Wireless communication interface module alert (such as alarm log), such that it is able to basic reflection bow net operating mode in real time, train operator or surface personnel can know this alarm log, such that it is able to use corresponding process, avoid because bow net operating mode causes train fault.In other embodiments, analyzing submodule 1173 can also use other image analyzing and processing technology to judge that arc event grade is to characterize bow net operating mode quantitatively.
In a preferred embodiment, warning message therein can include electric arc picture (warning message processes based on this electric arc picture analyzing and draws), the visible light video image that this electric arc picture shooting moment is corresponding, train driving integrated information corresponding to this electric arc picture shooting moment is (such as, Pantograph-OCS system is by stream current data, train speed data, train position information), and/or arcing event class information etc., therefore, relevant staff not only can obtain alarm signal, it is also based on this warning message to be analyzed judging, with this warning of further artificial judgment, and then decide whether to take respective handling.
In further preferred embodiment, analyze submodule 1173 to judge to be not limited to electric arc picture to the grade of arcing event, such as, it is also based on the current data of Pantograph-OCS system (pantograph), when judging whether to belong to the third level or the fourth stage, see that Pantograph-OCS system is subject to whether the change flowing current data occurs more than predetermined value, if the most do not fluctuated, then do not indicate that and do not interfere with train operation, belong to the third level, if change is more than predetermined value, then it represents that can affect train operation, belong to the fourth stage.Certainly, in other instances, it is also possible to the data of the collection introducing other carry out discriminatory analysis judgement.
Continue as shown in Figure 2, the Wireless communication interface module of car-mounted terminal 110 can be by car-mounted terminal 110 communicative couplings access to wireless communication network 130, such that it is able to the data communication realized in car-mounted terminal 110 and ground detection between 150, such as, picture, train driving integrated information etc. can be transmitted with real-time Transmission warning message；Analyzing in judge process it should be noted that above, the arcing event class information that electric arc picture is determined can also the most correspondingly be transferred in ground detection 150.In this embodiment, cordless communication network 130 can use 3G communication and Wifi communication transmission data, correspondingly, Wireless communication interface module is provided with 3G communication module 115, Wifi communication module 116, wherein 3G communication module 115 is used for realizing online transmission in real time, and Wifi communication module 116 sends for the off-line data when suspension of service.
Fig. 4 show the bow net monitoring of working condition handling process schematic diagram of the car-mounted terminal according to one embodiment of the invention.Shown in Fig. 3 and Fig. 4, car-mounted terminal power on preparation proceed by bow net detection process；First, step S310, the system initialization of car-mounted terminal self-inspection.
Further, step S320, after train brings into operation, gather image and train driving integrated information.In this embodiment, image includes visible light video image and specific frequency spectrum video image, and train driving integrated information includes that Pantograph-OCS system is subject to flow current data, train speed data, train position information etc..
Further, step S330, storage image and train driving integrated information.The data gathered are transferred to vehicle-mounted analysis alarm module 117, image and train driving integrated information can complete Data Format Transform in data acquisition unit, can also complete Data Format Transform in master controller 1174, is stored in sub module stored 1172 the most again.
Further, step S340, arc event grade differentiates for the first time.As described above can be based on electric arc picture (particular video frequency image collecting device is gathered) or be also based on Pantograph-OCS system and carried out electric arc grade discrimination by stream other data gathered such as current data；Arc event class information corresponding to each electric arc picture can correspondingly store, in case process sends thereafter.
Further, step S350, it is judged that whether arc event grade is more than or equal to predetermined grade.If it is determined that "Yes", then it represents that bow net operating mode is abnormal, it is likely that causes train operation fault, therefore, enters step S360, send warning message.If it is determined as no, be directly entered step S370.
Further, step S370, control 3G communication module and send data online.In this step, warning message can be sent online, preferred embodiment as previously discussed, if warning message includes that train driving integrated information that visible light video image that electric arc picture (warning message based on this electric arc picture analyzing process draw), this electric arc picture shooting moment are corresponding, this electric arc picture shooting moment are corresponding is (such as, Pantograph-OCS system is by stream current data, train speed data, train position information) and/or arcing event class information etc., the most also include the step obtaining related data information from sub module stored.In the case of step S360 is judged as "No", the collection data that the data that this step sends need real-time online to send according to this bow network monitoring system optionally send, certainly, during optionally sending, usually need to consider the message transmission rate of 3G communication.
Above step S320 cyclically can perform to step S370 in train travelling process.Until entering step S380, it is judged that whether train operation terminates, if train operation terminates (such as terminating the operation of a certain section of circuit), then entering step S390, controlling Wifi communication module and sending total data to ground detection center 150.In this step, after train rests in appointment position (such as station or parking lot), car-mounted terminal can actively search the Wifi network used with ground detection center to center communications, after successful log network, inspection center initiates data download request message earthward, data or any data based on collection that car-mounted terminal is gathered process other data obtained, are downloaded to ground detection center 150 the most in the lump, and ground detection center 150 carries out off-line analysis based on these data.
So far, car-mounted terminal can shut down, and its bow net monitoring of working condition handling process terminates substantially.
Fig. 5 show between car-mounted terminal and ground detection center the cordless communication network by an embodiment and carries out the schematic diagram of data communication.But, it is to be noted, cordless communication network 130 is not limited to the 3G communication of this embodiment and realizes data transmission with Wifi communication mode, it can be to use the wireless network of other forms, development along with radio network technique, emerging transfer rate other cordless communication networks faster, such as, 4G communication network can also be used.Also, it is understood that, in the case of the transfer rate of cordless communication network is sufficiently fast, above step S370 i.e. can increase the data capacity of real-time Transmission, it might even be possible to cancellation step S390.
With continued reference to Fig. 1, ground detection center 150 can receive all data relevant to bow net operating mode that car-mounted terminal corresponding to its train administered 110 sends over, the data storage server at ground detection center 150 can store these data in a large number, in case used in association analysis process.Ground detection center 150 can also include one or more operation terminal, application system server, especially, also include that association analysis processes computer, in one embodiment, association analysis processes computer, operation and can realize connection by rail line LAN between terminal, application system server, data storage server.
Analysis at car-mounted terminal is to be analyzed the bow net operating mode that a certain moment is corresponding processing, and as a example by analyzing arcing event, the factor affecting arcing event is a lot, therefore, arcing event is analyzed the inaccuracy judging to also likely to be present bow net monitoring of working condition.Further, the car-mounted terminal of above-described embodiment is difficult to the early warning judgement of bow net operating mode.The association analysis at ground detection center 150 processes computer can carry out further association analysis process, to improve bow net monitoring of working condition accuracy and to realize the fault function of early warning bow net operating mode based on the data that different car-mounted terminals, different time are sended over.
During being associated analyzing and processing, arcing event for synchronization, electric arc picture (collection of specific frequency spectrum harvester) corresponding to this moment, visible images frame (collection of visible light video image harvester), train position information, train speed, Pantograph-OCS system can be shown in operation terminal in the lump by the number information etc. of stream current data size and car-mounted terminal, process consequently facilitating operator carry out bow net operating mode judgement；" association " feature during association analysis processes is, multiple bow net operating modes the most in the same time can be associated com-parison and analysis, such as, the different train arcing events in same place can be associated comparative analysis, same train arcing event under the conditions of friction speed can be associated comparative analysis (such as, the rule that arcing event class declines after the near a certain particular value of a certain orbital position spot speed can be drawn), same train can be carried out arcing event at different orbital position points and be associated comparative analysis, same train arcing event at same orbital position point under different carrying conditions or weather conditions can be associated comparative analysis, etc..It is to be understood that, those skilled in the art are under above enlightenment, in the case of factor identical in some factor, a certain can be selected change existing, analyses and comparison bow net operating mode situation, to find the impact on bow net operating mode of the factor of this change, for bow net operating mode monitoring accurately, fault pre-alarming judges to provide basis.
Specifically, such as, if all there is the arcing event more than or equal to three grades at same orbital position point in multiple row train, but, pantograph-catenary current collection electric current does not all change, and be may determine that by association analysis the bow net operating mode of this location point is the most normal, it is probably arranging of Pantograph-OCS system self and is caused, therefore, if car-mounted terminal is when this orbital position point sends out warning message, this warning message can be ignored basically and do not carry out respective handling.The most such as, if all there is arcing event for multiple row train at same orbital position point, and the other types data outside electric arc picture the most all reflect that this position occurs arcing, may determine that this orbital position point exists bow net operating mode good and there is hidden trouble, maintenance process should be carried out as early as possible, or may determine that the bow net operating mode of this orbital position point tends to degenerating elapsing in time, thus provide early warning to judge, carry out bow net maintenance in advance, it is to avoid because bow net operating mode causes train operation fault.
In a further preferred embodiment, the association analysis at ground detection center 150 processes computer and can further be confirmed the arcing event class that the analysis submodule 1173 of car-mounted terminal 110 is differentiated, if according to image information etc., staff differentiates that its arcing event class is different from the arcing event class that analysis submodule 1173 is differentiated, can modify and store, thus be conducive to improving the accuracy of association analysis.In further preferred embodiment, the association analysis at ground detection center 150 processes computer can carry out the most careful grade classification and differentiation to the arcing event of reflection bow net operating mode, such as, arcing event is divided 5 grades or more than 5 grades.And in the grade judge process carrying out arcing event, the current data that can introduce electric arc picture, visible light video image frame and/or pantograph carries out the grade classification judgement of arcing event, so that the arcing event class division of reflection bow net operating mode is the most accurate.
Need further exist for explanation be, it is being associated analyzing and processing based on a large amount of history bow net floor datas, data mining technology can be utilized to form various types of analysis and statistical report form, help the latency that manual analysis pantograph and catenary fault is formed, the concentration generation area of location fault.So, for the Pantograph-OCS system of track traffic in the future contingent pantograph and catenary fault event, it is provided that accurately early warning judges, reduces the probability of happening of abnormal the caused train operation fault of bow net operating mode as much as possible.
Continuing as described in Figure 1, ground detection center 150 can arrange one by a corresponding track circuit, it is also possible to the multistage of a corresponding track circuit is respectively provided with multiple, it is also possible to corresponding a plurality of track circuit arranges multiple ground detection center 150.The operation terminal at each ground detection center 150 can be multiple, such that it is able to the management personnel being supplied to multiple station apply bow net monitoring of working condition information or analyze and process bow net operating mode simultaneously simultaneously.
Example above primarily illustrates the track traffic bow network monitoring system of the present invention.Although being only described some of them embodiments of the present invention, but those of ordinary skill in the art are it is to be appreciated that the present invention can be implementing with other forms many with in scope without departing from its spirit.Therefore, the example shown and embodiment are considered illustrative and not restrictive, and in the case of without departing from spirit and scope of the present invention as defined in appended claims, the present invention may contain various amendments and replacement.
Claims (20)
1. a monitoring system for rail transit bow net operating condition, for the bow net operating mode of the Pantograph-OCS system of one or more track circuit is monitored, it is characterised in that including:
Car-mounted terminal, comprising:
Vehicle carried data collecting module, the bow net operating mode of Pantograph-OCS system is monitored with realization for Pantograph-OCS system carries out bow net work information collection, and is simultaneously used for gathering train driving integrated information by it；
Vehicle-mounted analysis alarm module, it is for storing the bow net work information and train driving integrated information gathered and carrying out Data Environments based on described bow net work information and train driving integrated information, with judge bow net operating mode whether abnormal and when bow net operating mode is judged as exception alert, described train driving integrated information at least includes that train speed, Pantograph-OCS system are by stream current data and train position information；
Ground detection center, bow net operating mode is associated analyzing and processing by it based on described bow net work information and the train driving integrated information from one or more described car-mounted terminals；And
Data communication network, it is for realizing the information transmission between described car-mounted terminal and ground detection center.
2. monitoring system for rail transit bow net operating condition as claimed in claim 1, it is characterised in that described bow net work information includes visible light video image and specific frequency spectrum image；Described vehicle carried data collecting module includes:
For gathering the visible light video image harvester of the visible light video image of Pantograph-OCS system；And
For the specific frequency spectrum harvester shooting specific frequency spectrum image when Pantograph-OCS system produces arcing.
3. monitoring system for rail transit bow net operating condition as claimed in claim 2, it is characterised in that described specific frequency spectrum harvester is ultraviolet image sensor and/or infrared image sensor.
4. monitoring system for rail transit bow net operating condition as claimed in claim 2, it is characterised in that described bow net operating mode situation is reflected by the arcing event class corresponding to the arcing on Pantograph-OCS system.
5. monitoring system for rail transit bow net operating condition as claimed in claim 4, it is characterised in that in described Data Environments, including step:
Differentiate the arcing event class corresponding to the frame corresponding to each arc phenomenon or multiframe specific frequency spectrum image；
If arcing event class is more than or equal to intended level, then send described warning message.
6. monitoring system for rail transit bow net operating condition as claimed in claim 5, it is characterized in that, described warning message include to should the arcing moment specific frequency spectrum picture frame, to should the arcing moment visible light video image frame and/or to should the train driving integrated information in arcing moment.
7. monitoring system for rail transit bow net operating condition as claimed in claim 5, it is characterised in that when differentiating described arcing event class, the tonal gradation at least based on specific frequency spectrum picture frame divides.
8. the monitoring system for rail transit bow net operating condition as described in claim 5 or 7, it is characterised in that when differentiating described arcing event class, the Pantograph-OCS system being at least additionally based upon train driving integrated information is carried out grade classification by stream current data.
9. monitoring system for rail transit bow net operating condition as claimed in claim 8, it is characterised in that if described Pantograph-OCS system is less than predetermined value by the change of stream current data, it determines described arcing event is to the grade not affecting train operation.
10. the monitoring system for rail transit bow net operating condition as described in claim 4 or 5, it is characterised in that described arcing event class includes following four grade:
Represent the smooth first order,
Represent and produce little electric arc and do not affect the second level of train operation,
Represent big electric arc but do not affect the third level of train operation,
Represent big electric arc and affect the fourth stage of train operation；
Wherein, arcing event class is more than or equal to the third level, sends described warning message the most online.
11. monitoring system for rail transit bow net operating condition as claimed in claim 1, it is characterised in that described vehicle carried data collecting module includes:
For gathering the Pantograph-OCS system faradic current harvester by stream current data；And/or
Train speed harvester；
Wherein said train position information calculates according at least to described train speed.
12. monitoring system for rail transit bow net operating condition as claimed in claim 1, it is characterized in that, described car-mounted terminal also includes Wireless communication interface module, this Wireless communication interface module operationally accesses described data communication network system, with data obtained by least transmitting described bow net work information, train driving integrated information and described Data Environments to described ground detection center.
13. monitoring system for rail transit bow net operating condition as claimed in claim 12, it is characterized in that, described warning message carries out real-time Transmission, described bow net work information and train driving integrated information by institute's data communication network to be completed to carry out off-line transmission after predetermined running enters station or parking lot at described train.
14. monitoring system for rail transit bow net operating condition as claimed in claim 1, it is characterised in that described vehicle-mounted analysis alarm module includes: master controller, sub module stored and analysis submodule；Wherein, described sub module stored is used for storing described bow net work information and train driving integrated information, and described analysis submodule is used for carrying out described Data Environments, and described master controller is at least used for controlling to send described warning message.
15. monitoring system for rail transit bow net operating condition as claimed in claim 1, it is characterized in that, described ground detection center includes that data storage server, association analysis process and calculates device, operation terminal and application system server, and described data storage server, association analysis process and calculate device, realize connecting by rail line LAN between operation terminal and application system server.
16. monitoring system for rail transit bow net operating condition as claimed in claim 1, it is characterized in that, described association analysis processes for the arcing event of multiple reflection bow net operating modes the most in the same time is compared analyzing and processing, with accurate measurements bow net operating mode the fault of early warning bow net operating mode.
17. monitoring system for rail transit bow net operating condition as described in claim 1 or 15, it is characterized in that, obtained by described bow net work information, train driving integrated information and described Data Environments that described ground detection center sends over based on multiple car-mounted terminals, data carry out described association analysis process.
18. monitoring system for rail transit bow net operating condition as claimed in claim 5, it is characterised in that described ground detection center is additionally operable to confirm described arcing event class.
19. monitoring system for rail transit bow net operating condition as claimed in claim 10, it is characterised in that described arcing event class is segmented by described ground detection center further, and determine whether the arcing event class of segmentation corresponding to described arcing.
20. monitoring system for rail transit bow net operating condition as claimed in claim 1, it is characterized in that, in described association analysis processes, the stream current data that is subject to of the visible light video image frame in corresponding for arcing event moment, corresponding moment is associated by described ground detection center.
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