CN101574975B - Vehicle monitoring system based on CTCS-3 level train control system and terminal thereof - Google Patents
Vehicle monitoring system based on CTCS-3 level train control system and terminal thereof Download PDFInfo
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- CN101574975B CN101574975B CN200910085851XA CN200910085851A CN101574975B CN 101574975 B CN101574975 B CN 101574975B CN 200910085851X A CN200910085851X A CN 200910085851XA CN 200910085851 A CN200910085851 A CN 200910085851A CN 101574975 B CN101574975 B CN 101574975B
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Abstract
The invention provides a vehicle monitoring system based on a CTCS-3 level train control system and a terminal thereof; the system comprises a vehicle monitoring terminal, a ground access server and an operation and maintenance terminal; the vehicle monitoring terminal is arranged on a locomotive and is used for collecting the data of vehicle I<GSM-R> interface, thus obtaining monitoring data anddownloading the monitoring data to the ground access server by a GPRS and/or WLAN network; the ground access server is used for analyzing, counting and memorizing the monitoring data so as to be queried and analyzed by a user and transferring the analyzed and counted monitoring data to the operation and maintenance terminal; and the operation and maintenance terminal is used for carrying out real-time display on the monitoring data. The system and the terminal can position the communication signal equipment failure points, and realize the real-time monitoring and early-warning on the working state of the vehicle communication and signal equipment.
Description
Technical field
The present invention relates to the monitoring field, relate in particular to a kind of vehicle-mounted monitoring system and terminal based on CTCS-3 level train control system.
Background technology
CTCS-3 level train control system is the important technology equipment of Chinese Railway speed per hour 300～350km high speed passenger dedicated railway, is to have independent intellectual property right, guarantee the high speed train safe in operation, reliably, one of core technology efficiently.CTCS-3 level train control system adopts the GSM-R cordless communication network to provide the bidirectional transfer of information escape way for mobile unit and wayside equipment.
At present, existing signal of communication record, monitoring means all are in compass of competency separately separately equipment operation information to be write down or monitors, as being responsible for the judicial logger of record train operation necessary information, only the running condition of cab signal system equipment is carried out record; GSM-R network base station controller webmaster, mobile switching centre's webmaster etc., only the operation information to GSM-R network communicating system equipment carries out record.The record of communication and signal equipment, monitoring are inconsistent or asynchronous, cause under many circumstances accurately fault location problem, and fault can not get analyzing timely and actv. is handled, and the safe and stable operation to train has brought certain hidden danger to a certain extent.
Operation situation from existing operation GSM-R circuit Qinghai-Tibet Railway, Qun Dynasty's railway, lack supervision analysis to car ground data transmission and communication signaling, the partial fault of train-ground communication can not get accurate location, can't failure judgement be mobile unit problem or GSM-R communication system problem promptly, agnogenio causing be handled stagnation to faults analysis.This problem exists equally at the high speed passenger dedicated railway based on CTCS-3 level train control system.Though the communications industry was ripe already at the network monitor technology of GSM, at the hardware and software platform of CTCS-3 level train control system GSM-R dedicated network characteristics, but the monitoring system product of not using at the railway mobile unit does not occur various monitoring equipment both domestic and external yet.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of vehicle-mounted monitoring system and terminal based on CTCS-3 level train control system, can positioning and communicating signalling set trouble point, realize the mode of operation of vehicle-carrying communication, signalling set is carried out real-time monitoring and warning.
In order to address the above problem, the invention provides a kind of monitoring system of CTCS-3 level train control system, comprising:
Vehicle-mounted monitoring terminal, ground access server and operation and maintenance terminal
Described vehicle-mounted monitoring terminal is installed on the locomotive, is used for vehicle-mounted I
GSM-RThe data of interface are gathered, and obtain monitoring data; And described monitoring data downloaded to described ground access server by GPRS and/or wlan network;
Described ground access server is used for described monitoring data is resolved, added up and stores, for user's query analysis; And the monitoring data after will resolving and add up is transmitted to described operation and maintenance terminal;
Described operation and maintenance terminal is used for described monitoring data is shown in real time.
Further, described vehicle-mounted monitoring terminal comprises first, second two monitoring serial ports, and described first, second two monitoring serial ports are the RS422 joint; The 12nd, 13 pins of the described first monitoring serial ports are respectively by a photoisolator and described I
GSM-RThe 11st, 12 pins are connected on the RS422 joint of interface, are used to obtain the RS422 serial signal of making a start; The 12nd, 13 pins of the described second monitoring serial ports are respectively by a photoisolator and described I
GSM-RThe 13rd, 14 pins are connected on the RS422 joint of interface, are used to obtain the RS422 serial signal of receiving end.
Further, described vehicle-mounted monitoring terminal comprises GPRS module, WLAN module and selects module; Described selection module is used to control GPRS module and WLAN module timed sending probe data packet, in the time receiving the back-signalling of GPRS/WLAN network within a certain period of time, judges that the GPRS/WLAN network exists; During in only having GPRS and wlan network one, the cooresponding module of selecting to exist of network sends described monitoring data to described ground access server; When GPRS and wlan network exist simultaneously, judge that can GPRS network satisfy the transmission demand, if could not would select WLAN module and GPRS module to send described monitoring data simultaneously to described ground access server; Otherwise select the GPRS module to send described monitoring data to described ground access server;
Described selection module judge GPRS network can not satisfy the transmission demand be meant occur in following three kinds of situations any or appoint several:
Monitoring data speed surpasses predetermined rate-valve value;
The GRPS signal strength is less than the predetermined strength threshold value;
The packet loss of GRPS network is greater than predetermined packet loss threshold value.
Further, described vehicle-mounted monitoring terminal also is used for after collecting described monitoring data, for each frame monitoring data is distributed unique digital number and preservation; And earthward behind the some frame data of the every transmission of access server, send a frame data acknowledges requests message, the issued data sequence number of notice ground access server, require the ground access server that data that received and the data that do not receive are replied affirmation, meanwhile begin wait time is carried out timing, and continue to send Frame; If before described wait time surpasses a time threshold of presetting, receive the acknowledge message of replying of ground access server, then from the described monitoring data of preserving, extract and describedly reply the unreceived Frame of ground access server of indicating in the acknowledge message, and retransmit; Otherwise then enter halted state, no longer send data, continue to send a last acknowledges requests message, reply affirmation until receiving;
After described ground access server also is used to receive the described monitoring data of vehicle-mounted monitoring terminal transmission, write down the cooresponding data sequence number of paid-in Frame, after receiving described vehicle-mounted monitoring terminal acknowledges requests message, reply acknowledge message according to the Frame situation answer that has received and give described vehicle-mounted monitoring terminal, indication is not received but the issued data sequence number of described vehicle-mounted monitoring terminal.
Further, described vehicle-mounted monitoring terminal is to I
GSM-RInterface is monitored specifically and is meant:
Described vehicle-mounted monitoring terminal mutual AT between continuous acquisition cab signal subsystem during the train operation and GSM-R portable terminal orders and data;
Described operation and maintenance terminal also is used for judging according to monitoring data when the train-ground communication fault, if I before and after the fault
GSM-RThe interface monitoring data is normal, and then failure judgement occurs on the communication facilities; If do not have monitoring data before and after the fault, and employed wireless network is working properly, then failure judgement occurs on the signalling set; If mobile unit sends to the kilometer of ground signal system and indicates unusually, then judge vehicle-mounted responser information receiving module existing problems; If the ERROR instruction that the monitoring data of receiving is the GSM-R portable terminal to be sent to the cab signal subsystem judges that then communicating to connect between cab signal subsystem and the GSM-R portable terminal break down; If do not comprise the ATH instruction that the cab signal subsystem sends to the GSM-R portable terminal in the monitoring data of receiving, but comprise NO CARRIER instruction, then judge the GSM-R off-line of mobile station or be interfered, cause mobile unit Modem and train control system wayside equipment Modem to communicate to connect mistake.
The present invention also provides a kind of vehicle-mounted monitoring terminal of CTCS-3 level train control system, comprising:
Data acquisition unit is used for I
GSM-RThe data of interface are gathered, and obtain monitoring data;
Data storage cell is used to preserve described monitoring data;
Data transmission unit is used for described monitoring data is sent to the ground access server.
Further, described data acquisition unit comprises first, second two monitoring serial ports, and described first, second two monitoring serial ports are the RS422 joint; The 12nd, 13 pins of the described first monitoring serial ports are respectively by a photoisolator and described I
GSM-RThe 11st, 12 pins are connected on the RS422 joint of interface, are used to obtain the RS422 serial signal of making a start; The 12nd, 13 pins of the described second monitoring serial ports are respectively by a photoisolator and described I
GSM-RThe 13rd, 14 pins are connected on the RS422 joint of interface, are used to obtain the RS422 serial signal of receiving end.
Further, described data transmission unit comprises GPRS module, WLAN module and selects module; Described selection module is used to control GPRS module and WLAN module timed sending probe data packet, in the time receiving the back-signalling of GPRS/WLAN network within a certain period of time, judges that the GPRS/WLAN network exists; During in only having GPRS and wlan network one, the cooresponding module of selecting to exist of network sends described monitoring data to described ground access server; When GPRS and wlan network exist simultaneously, judge that can GPRS network satisfy the transmission demand, if could not would select WLAN module and GPRS module to send described monitoring data simultaneously to described ground access server; Otherwise select the GPRS module to send described monitoring data to described ground access server;
Described selection module judge GPRS network can not satisfy the transmission demand be meant occur in following three kinds of situations any or appoint several:
Monitoring data speed surpasses predetermined rate-valve value;
The GRPS signal strength is less than the predetermined strength threshold value;
The packet loss of GRPS network is greater than predetermined packet loss threshold value.
Further, described terminal also comprises: the wait acknowledge timer;
After described data acquisition unit collects described monitoring data,, and be kept in the described data storage cell for each frame monitoring data is distributed unique digital number;
Data transmission unit also is used for behind some frame data of the every transmission of access server earthward, send a frame data acknowledges requests message, the issued data sequence number of notice ground access server, require the ground access server that data that received and the data that do not receive are replied affirmation, meanwhile start described wait acknowledge timer, and continue to send Frame; If before the wait acknowledge timer expiry, receive the acknowledge message of replying of ground access server, then from data storage cell, extract and reply in the acknowledge message the unreceived Frame of ground access server and retransmit or continue to send new Frame, otherwise then enter halted state, no longer send data, continue to send a last acknowledges requests message, reply affirmation until receiving.
Further, described data acquisition unit is to I
GSM-RInterface is monitored specifically and is meant:
Described data acquisition unit mutual AT between continuous acquisition cab signal subsystem during the train operation and GSM-R portable terminal orders and data.
Technical scheme of the present invention is at the vehicle-mounted I of CTCS-3 level train control system
GSM-RThe monitoring of interface belongs to domestic initiation, and its beneficial effect mainly contains and is embodied in following two aspects: the one, can positioning and communicating the signalling set trouble point, promptly fault occurs on the communication facilities still on the signalling set; The 2nd, can realize the mode of operation of vehicle-carrying communication, signalling set is carried out real-time monitoring and warning, the surface work personnel can grasp the data transmission situation of each mobile unit in real time.Prioritization scheme of the present invention adopts GPRS/WLAN wireless access way adaptive technique, can both guarantee to guarantee the real-time transmitted the reliability of transmission again, and improved transmission efficiency.Another prioritization scheme of the present invention adopts serial signal cross-over connection to isolate monitoring technology, guaranteed that monitoring equipment has no effect to the work of existing installation.Another prioritization scheme of the present invention adopts the real-time automation reliable transmission of monitoring data technology, has improved the promptness and the reliability of data transmission.But another prioritization scheme automated intelligent of the present invention ground is analyzed common train-ground communication fault, can save the failure analysis judgement time, improves the failure analysis judging efficiency.
Description of drawings
Fig. 1 is CTCS-3 level train control system I
GSM-RMonitoring interface position scheme drawing;
Fig. 2 is the vehicle-mounted monitoring system scheme drawing based on CTCS-3 level train control system among the embodiment one;
Fig. 3 is that the vehicle-mounted monitoring terminal of the CTCS-3 level train control system among the embodiment one connects I
GSM-RPhotoelectricity during interface is isolated and monitoring line preface scheme drawing.
Fig. 4 is I under the normal circumstances
GSM-RThe interface communication schematic flow sheet.
The specific embodiment
Below in conjunction with drawings and Examples technical scheme of the present invention is described in detail.
Railway high speed, safe and reliable traffic requirements are had higher requirement to land mobile communication system equipment technology level.Among the present invention is demand customization at railway systems based on the vehicle-mounted monitoring system of CTCS-3 level train control system and terminal; For fast and effeciently to the supervision analysis of car ground data transmission and communication signaling, and the position of fault of accurately locating train-ground communication, the present invention takes the lead in having proposed I
GSM-RInterface carries out the design concept of data acquisition and analysis.
As shown in Figure 1, I
GSM-RInterface is the interface between cab signal subsystem and the GSM-R portable terminal in the CTCS-3 level train control system, and V.24 interface protocol observes standard ITU-T, and physically optionally interface has RS-422 and RS-232.The AT order of all mutual data and vehicle-mounted signal device control wireless communication module all will be passed through I between the inaccessible center RBC of cab signal subsystem and terrestrial wireless
GSM-RInterface.The cab signal subsystem obtains the data of train intrinsic property data and driver's input, passes through I
GSM-RSend to ground G SM-R fixed network by the GSM-R portable terminal with the form of wireless signal behind the interface, be transmitted to RBC (radio block center) and CTC trackside signal facilities such as (centralized traffic controls).RBC generates control informations such as driving permission, temporary speed limitation according to these information, be transmitted to the cab signal subsystem through the GSM-R portable terminal, realizes the safety control to train.
The present invention selects vehicle-mounted I
GSM-RThe interface of the such communication and signal equipment interconnection of interface carries out data acquisition, with positioning and communicating signalling set trouble point, and realizes the mode of operation of vehicle-carrying communication, signalling set is carried out real-time monitoring and warning.
Embodiment one, and the monitoring system of CTCS-3 level train control system as shown in Figure 2, comprising: vehicle-mounted monitoring terminal, ground access server and operation and maintenance terminal.
Described vehicle-mounted monitoring terminal is installed on the locomotive, is used for vehicle-mounted I
GSM-RThe data of interface are gathered, and obtain monitoring data; And described monitoring data downloaded to described ground access server by GPRS and/or wlan network;
Described ground access server is used for described monitoring data is resolved, added up and stores, for user's query analysis; Monitoring data after will resolving and add up simultaneously is transmitted to described operation and maintenance terminal;
Described operation and maintenance terminal is used for described monitoring data is shown in real time, and functions such as data query, data analysis, form derivation can also further be provided for the user.The user can grasp the working condition of mobile unit in real time by the operation and maintenance terminal, and car ground interaction data is inquired about, and the train-ground communication malfunction equipment is carried out intellectual analysis.
In the present embodiment, described vehicle-mounted monitoring terminal physically adopts the RS422 interface to vehicle-mounted I
GSM-RInterface is monitored; According to the physical property of RS422 interface support point-to-multipoint delivery mode, described vehicle-mounted monitoring terminal adopts parallel cross-over connection mode to obtain serial data signal, and data are gathered.
As shown in Figure 3, described vehicle-mounted monitoring terminal comprises first, second two monitoring serial ports, is two RS422 joints in the present embodiment, and the 12nd, 13 pins of the first monitoring serial ports are respectively by a photoisolator and described I
GSM-RThe 11st, 12 pins are connected on the RS422 joint of interface, are used to obtain the RS422 serial signal of making a start; The 12nd, 13 pins of the second monitoring serial ports are respectively by a photoisolator and described I
GSM-RThe 13rd, 14 pins are connected on the RS422 joint of interface, are used to obtain the RS422 serial signal of receiving end.In the physical cabling, two-way monitoring serial ports and described I
GSM-RThe connection of interface can be exchanged, the direction that monitoring system can the intelligent decision monitoring data.
The Monitoring Line of described vehicle-mounted monitoring terminal and former I
GSM-RAdopting the light xegregating unit to carry out photoelectricity between interface circuit isolates, Monitoring Line can only receive the serial signal that former circuit sends over, and can not can avoid monitor signal that original signal is brought interference to former line signaling, guarantee that monitoring equipment has no effect to the work of existing installation.
In the present embodiment, described vehicle-mounted monitoring terminal comprises GPRS module, WLAN module and selects module; Described selection module is used to select GPRS module and/or WLAN module to send described monitoring data to described ground access server.
In an embodiment of the present embodiment, described selection module controls GPRS module and WLAN module timed sending probe data packet in the time receiving the back-signalling of GPRS/WLAN network within a certain period of time, judge that the GPRS/WLAN network exists; During in only having GPRS and wlan network one, the cooresponding module of selecting to exist of network sends described monitoring data to described ground access server, when GPRS and wlan network exist simultaneously, select the cooresponding module of one of them network to send described monitoring data, or select GPRS module and WLAN module to send described monitoring data simultaneously to described ground access server to described ground access server.
In the another kind of embodiment of present embodiment, preestablish the priority of GPRS and WLAN, described selection module selects the high cooresponding module of network of priority to send described monitoring data to described ground access server when GPRS and wlan network exist simultaneously.
At the railway systems applicable cases, adopt GPRS and the adaptive data transfer mode of wlan network in the present embodiment, with the priority level initializing of GPRS network for being higher than wlan network.The GPRS signal cover is bigger, real-time is good, can carry out the transmission of described monitoring data at any time, described monitoring data is sent to described ground access server by GPRS network in real time, be transmitted to described operation and maintenance terminal by described ground access server again, to realize the real-time demonstration to monitoring data, real-time is better, but data transmission capacity is limited.When monitoring data speed surpasses predetermined rate-valve value, or when train when too far away or GPRS signal is caused GPRS signal weak excessively (GRPS signal strength less than the packet loss of a predetermined strength threshold value or GRPS network greater than a packet loss threshold value of being scheduled to) by mountain valley, shielding of building apart from the base station, the GPRS transmission can not be satisfied monitoring data transmission demand, at this moment adopt WLAN to transmit as supplementary means with regard to needs, promptly described in the case selection module selects GPRS module and WLAN module to send described monitoring data to described ground access server simultaneously.Just set up the WLAN WAP along the railway at a certain distance, after train enters the wlan network overlay area, detect the wlan network signal, just when sending described monitoring data by GPRS network, by wlan network earthward the WLAN access server continue to send described monitoring data.Like this, guarantee the monitoring data transmission accurately and reliably by the double shield mechanism of GPRS and wlan network.
After adopting the scheme of present embodiment, described selection module is when GPRS network can satisfy the transmission demand, select described GPRS module to send described monitoring data to described ground access server, when monitoring data speed surpass described rate-valve value or when the GPRS signal excessively a little less than, and select the WLAN transmission to send described monitoring data to described ground access server when having wlan network to cover as auxiliary transmission media, so both guaranteed the reliability of transmission, guarantee the real-time of transmission again, improved transmission efficiency.
Described vehicle-mounted monitoring terminal is preserved described monitoring data, can automatically the monitoring data that is sent be left out after transmission finishes, and need not user intervention; In addition, when train arrival, can also manually download the data of preserving in the vehicle-mounted monitoring terminal, at this moment, also can manually delete data downloaded.System provides multiple flexible way to meet consumers' demand, and guarantees operating factor of memory space simultaneously again.
Described GPRS module provides two kinds of mode of operations, can be operated in also can be operated under the public GSM network under railway dedicated GSM-R network, and the user only needs when changing SIM system to be carried out simple configuration and can realize.Under the situation of railway GSM-R network G PRS abundant resource, directly adopt the GPRS channel of railway GSM-R network to transmit, the ground access server directly is connected with GGSN, the IP address that can insert GPRS network of using GGSN to distribute as monitoring system ground G PRS access server, described GPRS module in the vehicle-mounted monitoring terminal is packaged into the IP bag with monitoring data, is sent to ground G PRS access server.Under GSM-R network G PRS resource scarcity situation, described vehicle-mounted monitoring terminal adopts China Mobile's GPRS network to insert Internet, the IP address that described GPRS module is obtained the GPRS access server according to the Internet domain name of ground GPRS access server application is sent to ground G PRS access server.
No matter adopt which kind of data transfer mode, described vehicle-mounted monitoring terminal can both download to the ground access server automatically with monitoring data, and data transmission procedure need not user intervention.Wlan network and GPRS network data transfer mode be flexible configuration as required, and system supports both adaptive patterns that coexists.
In the present embodiment, at the Data Transmission Feature of wlan network and GPRS, system adopts the selection retransmission mode that car ground is transmitted and receive data and replys affirmation, has guaranteed the accurate, reliable of transmission.
After described vehicle-mounted monitoring terminal also is used to collect described monitoring data, encapsulate framing, for each frame data distributes unique digital number according to serial signal characteristics and monitoring data start bit, stop bit; In this locality storage, on the one hand data are sent to the ground access server on the one hand, adopt and select retransmission mode to reply affirmation sending data.Vehicle-mounted monitoring terminal is earthward behind the some frame data of the every transmission of access server, send a frame data acknowledges requests message, the issued data sequence number of notice ground access server, require the ground access server that data that received and the data that do not receive are replied affirmation, meanwhile begin wait time is carried out timing, the limit waits for that the acknowledge message limit continuation of replying of ground access server sends Frame then.If before described wait time surpasses this default time threshold, receive the acknowledge message of replying of ground access server, then from local storage file, extract and reply in the acknowledge message the unreceived Frame of ground access server and retransmit or continue to send new Frame, otherwise then enter halted state, no longer send data, continue to send a last acknowledges requests message, reply affirmation until receiving.
After described ground access server receives the described monitoring data of vehicle-mounted monitoring terminal transmission, also write down the cooresponding data sequence number of paid-in Frame, after receiving described vehicle-mounted monitoring terminal acknowledges requests message, reply acknowledge message according to the Frame situation answer that has received and give described vehicle-mounted monitoring terminal, to not receive but the issued data sequence number of described vehicle-mounted monitoring terminal is added up, and notify described vehicle-mounted monitoring terminal to retransmit.
In the present embodiment, described vehicle-mounted monitoring terminal in the monitoring system of CTCS-3 level train control system mutual AT between continuous acquisition cab signal subsystem during the train operation and GSM-R portable terminal orders and data, thereby realizes the transmission situation is monitored incessantly.
Can make the ground staff grasp car ground data transmission situation in real time by monitoring data, described operation and maintenance terminal can be judged according to monitoring data when the train-ground communication fault, if I before and after the fault
GSM-RThe interface monitoring data is normal, and promptly the cab signal subsystem successfully passes through I with the train operation control information
GSM-RInterface is transmitted to the GSM-R portable terminal, and CTCS-3 level train control system wayside equipment (such as control center and radio block center) fails accurately to receive these information, and then failure judgement occurs on the communication facilities; If do not monitor any data before and after the fault, promptly the cab signal subsystem fails accurately I to be passed through in the train operation control information
GSM-RInterface sends to the GSM-R portable terminal, the ground signal system does not have data to send to mobile unit yet, and GSM-R network (or employed other cordless communication network) is working properly, then failure judgement occurs in signalling set and (comprises vehicle-borne signalling set, such as OBC, vehicle-mounted center or ground-surface signalling set are such as the RBC radio block center) on.If the fault front and back are vehicle-mounted and the unidirectional phenomenon of monitoring data appears in ground, then need to obtain GSM-R network PRI interface monitoring data and do Conjoint Analysis.In addition, can positioning car ground communication failure point according to the data content of car ground transmission, the kilometer that sends to wayside equipment as mobile unit indicates unusually, illustrates that then vehicle-mounted responser information receiving module may exist fault maybe to need to calibrate.
In the present embodiment, the described train-ground communication failure analysis technology that provides based on operation and maintenance terminal described in the vehicle-mounted monitoring system of CTCS-3 level train control system comprises AT order process analysis and CTCS-3 level train control system business data transmission analysis two big classes.
The content of AT order process analysis mainly comprises: mobile unit main backup module Working state analysis and vehicle-mounted GSM-R portable terminal main backup module are switched the situation statistical analysis.
The content of CTCS-3 level train control system business data transmission analysis comprises: the CTCS-3 business data transmission is analyzed, the decoding of CTCS-3 business datum is analyzed, car ground data transmission channel is set up the failure failure analysis, car ground data sheet is analyzed to failure analysis and train-ground communication outage.
Under the normal circumstances, the AT command communication flow process of cab signal subsystem and GSM-R portable terminal as shown in Figure 4.
If the ERROR instruction that the monitoring data that described operation and maintenance terminal is received is the GSM-R portable terminal to be sent to the cab signal subsystem judges that then communicating to connect between cab signal subsystem and the GSM-R portable terminal break down;
If do not comprise the ATH instruction that the cab signal subsystem sends to the GSM-R portable terminal in the monitoring data that described operation and maintenance terminal is received, but comprise NO CARRIER instruction, then judge the GSM-R off-line of mobile station or be interfered, cause mobile unit Modem and train control system wayside equipment Modem to communicate to connect mistake.
Certainly, in actual applications, the monitoring data that terrestrial user also can directly show according to described operation and maintenance terminal is carried out failure analysis and is judged that for common faults, the operation and maintenance terminal can be carried out the automated intelligent analysis, assisting users fault location point.Carry out failure analysis by described operation and maintenance terminal and judge, can save the failure analysis judgement time, improve the failure analysis judging efficiency.
Embodiment two, and a kind of vehicle-mounted monitoring terminal of CTCS-3 level train control system comprises:
Data acquisition unit is used for I
GSM-RThe data of interface are gathered, and obtain monitoring data;
Data storage cell is used to preserve described monitoring data;
Data transmission unit is used for described monitoring data is sent to the ground access server.
In the present embodiment, described data acquisition unit physically adopts the RS422 interface to I
GSM-RInterface is monitored, and adopts parallel cross-over connection mode to obtain serial data signal, and data are gathered; The Monitoring Line of described data acquisition unit and former I
GSM-RAdopt the light xegregating unit to carry out photoelectricity between interface circuit and isolate, Monitoring Line can only receive the serial signal that former circuit sends over, and can not be to former line signaling.
In the present embodiment, described data acquisition unit comprises first, second two monitoring serial ports, is two RS422 joints in the present embodiment, and the 12nd, 13 pins of the first monitoring serial ports are respectively by a photoisolator and described I
GSM-RThe 11st, 12 pins are connected on the RS422 joint of interface, are used to obtain the RS422 serial signal of making a start; The 12nd, 13 pins of the second monitoring serial ports are respectively by a photoisolator and described I
GSM-RThe 13rd, 14 pins are connected on the RS422 joint of interface, are used to obtain the RS422 serial signal of receiving end.In the physical cabling, two-way monitoring serial ports and I
GSM-RThe connection of interface can be exchanged, the direction that monitoring system can the intelligent decision monitoring data.
In the present embodiment, described data transmission unit comprises GPRS module, WLAN module and selects module; Described selection module is used to select GPRS module and/or WLAN module to send described monitoring data to described ground access server.
In an embodiment of the present embodiment, described selection module controls GPRS module and WLAN module timed sending probe data packet in the time receiving the back-signalling of GPRS/WLAN network within a certain period of time, judge that the GPRS/WLAN network exists; During in only having GPRS and wlan network one, the cooresponding module of selecting to exist of network sends described monitoring data to described ground access server, when GPRS and wlan network exist simultaneously, select the cooresponding module of one of them network to send described monitoring data, or select GPRS module and WLAN module to send described monitoring data simultaneously to the access service of described ground to described ground access server.
In the another kind of embodiment of present embodiment, preestablish the priority of GPRS and WLAN, described selection module selects the high cooresponding module of network of priority to send described monitoring data to described ground access server when GPRS and wlan network exist simultaneously.
At the railway systems applicable cases, in the present embodiment with the priority level initializing of GPRS network for being higher than wlan network, so both guaranteed the reliability of transmission, guaranteed the real-time of transmission again, improved transmission efficiency.
Described vehicle-mounted data memory cell is preserved described monitoring data, can with the monitoring data deletion that is sent, need not user intervention automatically after transmission finishes; In addition, when train arrival, can also manually download the data of preserving in the vehicle-mounted monitoring terminal, at this moment, also can manually delete data downloaded.Guarantee operating factor of memory space.
In the present embodiment, described vehicle-mounted monitoring terminal comprises that also one waits for and to reply timer;
Described data acquisition unit also is used for after collecting described monitoring data, for each frame monitoring data is distributed unique digital number, and is kept in the described data storage cell;
Data transmission unit also is used for after the described monitoring data of the some frames of the every transmission of access server earthward, send a frame data acknowledges requests message, the issued data sequence number of notice ground access server, require the ground access server that data that received and the data that do not receive are replied affirmation, meanwhile start described wait acknowledge timer, the limit waits for that the acknowledge message limit continuation of replying of ground access server sends Frame then; If before the wait acknowledge timer expiry, receive the acknowledge message of replying of ground access server, then from data storage cell, extract and reply in the acknowledge message the unreceived Frame of ground access server and retransmit or continue to send new Frame, otherwise then enter halted state, no longer send data, continue to send a last acknowledges requests message, reply affirmation until receiving.
In the present embodiment, described data acquisition unit is to I
GSM-RInterface is monitored specifically and is meant:
Described data acquisition unit mutual AT between continuous acquisition cab signal subsystem during the train operation and GSM-R portable terminal orders and data.
Identical among other implementation detail and the last embodiment repeats no more here.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection domain of claim of the present invention.
Claims (10)
1. the monitoring system of a CTCS-3 level train control system is characterized in that, comprising:
Vehicle-mounted monitoring terminal, ground access server and operation and maintenance terminal
Described vehicle-mounted monitoring terminal is installed on the locomotive, is used for vehicle-mounted I
GSM-RThe data of interface are gathered, and obtain monitoring data; And described monitoring data downloaded to described ground access server by GPRS and/or wlan network;
Described ground access server is used for described monitoring data is resolved, added up and stores, for user's query analysis; And the monitoring data after will resolving and add up is transmitted to described operation and maintenance terminal;
Described operation and maintenance terminal is used for described monitoring data is shown in real time.
2. monitoring system as claimed in claim 1 is characterized in that:
Described vehicle-mounted monitoring terminal comprises first, second two monitoring serial ports, and described first, second two monitoring serial ports are the RS422 joint; The 12nd, 13 pins of the described first monitoring serial ports are respectively by a photoisolator and described I
GSM-RThe 11st, 12 pins are connected on the RS422 joint of interface, are used to obtain the RS422 serial signal of making a start; The 12nd, 13 pins of the described second monitoring serial ports are respectively by a photoisolator and described I
GSM-RThe 13rd, 14 pins are connected on the RS422 joint of interface, are used to obtain the RS422 serial signal of receiving end.
3. monitoring system as claimed in claim 1 is characterized in that:
Described vehicle-mounted monitoring terminal comprises GPRS module, WLAN module and selects module; Described selection module is used to control GPRS module and WLAN module timed sending probe data packet, in the time receiving the back-signalling of GPRS/WLAN network within a certain period of time, judges that the GPRS/WLAN network exists; During in only having GPRS and wlan network one, the cooresponding module of selecting to exist of network sends described monitoring data to described ground access server; When GPRS and wlan network exist simultaneously, judge that can GPRS network satisfy the transmission demand, if could not would select WLAN module and GPRS module to send described monitoring data simultaneously to described ground access server; Otherwise select the GPRS module to send described monitoring data to described ground access server;
Described selection module judge GPRS network can not satisfy the transmission demand be meant occur in following three kinds of situations any or appoint several:
Monitoring data speed surpasses predetermined rate-valve value;
The GRPS signal strength is less than the predetermined strength threshold value;
The packet loss of GRPS network is greater than predetermined packet loss threshold value.
4. monitoring system as claimed in claim 1 is characterized in that:
Described vehicle-mounted monitoring terminal also is used for after collecting described monitoring data, for each frame monitoring data is distributed unique digital number and preservation; And earthward behind the some frame data of the every transmission of access server, send a frame data acknowledges requests message, the issued data sequence number of notice ground access server, require the ground access server that data that received and the data that do not receive are replied affirmation, meanwhile begin wait time is carried out timing, and continue to send Frame; If before described wait time surpasses a time threshold of presetting, receive the acknowledge message of replying of ground access server, then from the described monitoring data of preserving, extract and describedly reply the unreceived Frame of ground access server of indicating in the acknowledge message, and retransmit; Otherwise then enter halted state, no longer send data, continue to send a last acknowledges requests message, reply affirmation until receiving;
After described ground access server also is used to receive the described monitoring data of vehicle-mounted monitoring terminal transmission, write down the cooresponding data sequence number of paid-in Frame, after receiving described vehicle-mounted monitoring terminal acknowledges requests message, reply acknowledge message according to the Frame situation answer that has received and give described vehicle-mounted monitoring terminal, indication is not received but the issued data sequence number of described vehicle-mounted monitoring terminal.
5. monitoring system as claimed in claim 1 is characterized in that, described vehicle-mounted monitoring terminal is to I
GSM-RInterface is monitored specifically and is meant:
Described vehicle-mounted monitoring terminal mutual AT between continuous acquisition cab signal subsystem during the train operation and GSM-R portable terminal orders and data;
Described operation and maintenance terminal also is used for judging according to monitoring data when the train-ground communication fault, if I before and after the fault
GSM-RThe interface monitoring data is normal, and then failure judgement occurs on the communication facilities; If do not have monitoring data before and after the fault, and employed wireless network is working properly, then failure judgement occurs on the signalling set; If mobile unit sends to the kilometer of ground signal system and indicates unusually, then judge vehicle-mounted responser information receiving module existing problems; If the ERROR instruction that the monitoring data of receiving is the GSM-R portable terminal to be sent to the cab signal subsystem judges that then communicating to connect between cab signal subsystem and the GSM-R portable terminal break down; If do not comprise the ATH instruction that the cab signal subsystem sends to the GSM-R portable terminal in the monitoring data of receiving, but comprise NO CARRIER instruction, then judge the GSM-R off-line of mobile station or be interfered, cause mobile unit Modem and train control system wayside equipment Modem to communicate to connect mistake.
6. the vehicle-mounted monitoring terminal of a CTCS-3 level train control system is characterized in that, comprising:
Data acquisition unit is used for I
GSM-RThe data of interface are gathered, and obtain monitoring data;
Data storage cell is used to preserve described monitoring data;
Data transmission unit is used for described monitoring data is sent to the ground access server.
7. terminal as claimed in claim 6 is characterized in that:
Described data acquisition unit comprises first, second two monitoring serial ports, and described first, second two monitoring serial ports are the RS422 joint; The 12nd, 13 pins of the described first monitoring serial ports are respectively by a photoisolator and described I
GSM-RThe 11st, 12 pins are connected on the RS422 joint of interface, are used to obtain the RS422 serial signal of making a start; The 12nd, 13 pins of the described second monitoring serial ports are respectively by a photoisolator and described I
GSM-RThe 13rd, 14 pins are connected on the RS422 joint of interface, are used to obtain the RS422 serial signal of receiving end.
8. terminal as claimed in claim 6 is characterized in that:
Described data transmission unit comprises GPRS module, WLAN module and selects module; Described selection module is used to control GPRS module and WLAN module timed sending probe data packet, in the time receiving the back-signalling of GPRS/WLAN network within a certain period of time, judges that the GPRS/WLAN network exists; During in only having GPRS and wlan network one, the cooresponding module of selecting to exist of network sends described monitoring data to described ground access server; When GPRS and wlan network exist simultaneously, judge that can GPRS network satisfy the transmission demand, if could not would select WLAN module and GPRS module to send described monitoring data simultaneously to described ground access server; Otherwise select the GPRS module to send described monitoring data to described ground access server;
Described selection module judge GPRS network can not satisfy the transmission demand be meant occur in following three kinds of situations any or appoint several:
Monitoring data speed surpasses predetermined rate-valve value;
The GRPS signal strength is less than the predetermined strength threshold value;
The packet loss of GRPS network is greater than predetermined packet loss threshold value.
9. terminal as claimed in claim 6 is characterized in that, also comprises:
The wait acknowledge timer;
After described data acquisition unit collects described monitoring data,, and be kept in the described data storage cell for each frame monitoring data is distributed unique digital number;
Data transmission unit also is used for behind some frame data of the every transmission of access server earthward, send a frame data acknowledges requests message, the issued data sequence number of notice ground access server, require the ground access server that data that received and the data that do not receive are replied affirmation, meanwhile start described wait acknowledge timer, and continue to send Frame; If before the wait acknowledge timer expiry, receive the acknowledge message of replying of ground access server, then from data storage cell, extract and reply in the acknowledge message the unreceived Frame of ground access server and retransmit or continue to send new Frame, otherwise then enter halted state, no longer send data, continue to send a last acknowledges requests message, reply affirmation until receiving.
10. terminal as claimed in claim 6 is characterized in that described data acquisition unit is to I
GSM-RInterface is monitored specifically and is meant:
Described data acquisition unit mutual AT between continuous acquisition cab signal subsystem during the train operation and GSM-R portable terminal orders and data.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910085851XA CN101574975B (en) | 2009-06-03 | 2009-06-03 | Vehicle monitoring system based on CTCS-3 level train control system and terminal thereof |
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| CN200910085851XA CN101574975B (en) | 2009-06-03 | 2009-06-03 | Vehicle monitoring system based on CTCS-3 level train control system and terminal thereof |
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| CN101574975B true CN101574975B (en) | 2011-03-16 |
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Families Citing this family (54)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN102740449B (en) * | 2011-04-13 | 2015-06-03 | 北京锦鸿希电信息技术股份有限公司 | Vehicle-mounted wireless transmission system of CTCS-3 level train control system using GSM-R network |
| CN102238600B (en) * | 2011-04-26 | 2014-01-29 | 北京锦鸿希电信息技术股份有限公司 | Depot examination system for global system for mobile communication for railway (GSM-R) on-vehicle wireless transmission module of China train control system (CTCS)-3 |
| CN102238577B (en) * | 2011-04-26 | 2013-12-04 | 北京锦鸿希电信息技术股份有限公司 | System for monitoring network transmission environment of global system for mobile communication for railway (GSM-R) on-vehicle wireless transmission module of China train control system (CTCS)-3 |
| CN102238576B (en) * | 2011-04-26 | 2014-04-16 | 北京锦鸿希电信息技术股份有限公司 | Online monitoring system for GSM-R (Global System for Mobile communication-Railway) train-mounted wireless transmission module of CTCS-3 (Chinese Train Control System) |
| CN102267481B (en) * | 2011-05-16 | 2014-08-13 | 北京全路通信信号研究设计院有限公司 | Automatic operation train-mounted device for CTCS (Chinese Train Control System)-3 level train and rail transit vehicle |
| CN102354164B (en) * | 2011-05-26 | 2013-11-13 | 鲁俊群 | Vehicle-mounted networking apparatus and system thereof for safety guarantee |
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| CN102355496B (en) * | 2011-09-27 | 2014-08-20 | 中国铁道科学研究院电子计算技术研究所 | Train-ground data communication method |
| CN102556125B (en) * | 2011-12-26 | 2015-07-29 | 北京交控科技有限公司 | The maintenance support system of train automatic controlling system |
| CN102438270A (en) * | 2012-01-06 | 2012-05-02 | 上海交通大学 | On-line testing and early warning system for air interface of GSM-R (Global System for Mobile Communications-Railway) network |
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| CN105635211B (en) * | 2014-11-03 | 2018-10-30 | 南京中车浦镇城轨车辆有限责任公司 | Vehicle-mounted real time information communication means based on multifunctional vehicle bus |
| CN104386099B (en) * | 2014-11-25 | 2017-01-18 | 马子彦 | Train auxiliary monitoring system for rail transit signal system in failure state |
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- 2009-06-03 CN CN200910085851XA patent/CN101574975B/en active Active
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