CN103763335A - Train-ground wireless communication system applied to running states of HXD1 type locomotives - Google Patents
Train-ground wireless communication system applied to running states of HXD1 type locomotives Download PDFInfo
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Abstract
The invention discloses a train-ground wireless communication system applied to running states of HXD1 type locomotives. The system comprises a vehicle-mounted information subsystem and a ground information subsystem. The vehicle-mounted information subsystem is used for collecting running state information and SIBAS diagnostic data of a locomotive network control system on the basis of the TCN/MVB network, and sending the running state information and the SIBAS diagnostic data to the ground information subsystem in real time for information processing through the GSM-R/GPRS wireless communication technology. In addition, the vehicle-mounted information subsystem is used for receiving information fed back by the ground information subsystem and providing the information as guidance and prompt for drivers and conductors; the ground information subsystem is used for analyzing and extracting in-transit running state information of the locomotives, carrying out data analysis on running recorded information of the locomotives, remote intelligent diagnosis on faults, and the like, and providing strong background support for safe and efficient in-transit running of the locomotives. The train-ground wireless communication system enables in-transit running train-ground wireless communication links of the HXD1 type locomotives to be effectively achieved, can monitor the running states of the locomotives in real time and can improve in-transit running safety and maintenance efficiency of the locomotives.
Description
Technical field
The present invention relates to a kind of vehicle-ground wireless communication system of the HXD1 of being applied to type locomotive running status.
Background technology
GSM-R (GSM for Railway, Railway Mobile Radio system) is a kind of based on digital wireless communications systems ripe, the most general common wireless communication system GSM platform in the current world, that develop for meeting railway applications specially.GPRS adopts packet-switch technology, energy efficient transfer data, the utilization of Optimizing Network Resources and Radio Resource.GPRS network access speed is fast, can and available data net (for example local area network (LAN), internet) carry out seamless link.It can not only provide the variable bit rate of 9.05-171.2kbps on wireless channel, more having realized packet on wireless channel transmits, there is real-time communication is good, data volume is large, the non-maintaining clear superiority of Denging, with wireless mode, realize transfer of data or " always online " Real-Time Monitoring.
The communication technology between more existing widely used car ground, GSM-R technology is one, and towards the platform of railway applications, its specificity is strong, safe, meets the transmission requirement of locomotive when high-speed mobile.Now the GSM-R technology on Datong-Qinhuangdao Railway is ripe, and omnidistance to cover expanding on Dalian-Qinhuangdao Railway along the line, and this meets the demand of the transfer of data at the center, ground of HXD1 type locomotive and locomotive depot on Datong-Qinhuangdao Railway very much.
APN access via telephone line is that enterprise is by access via telephone line GPRS network, make the seamless fusion of GPRS network and corporate intranet, but the interconnected authentication that needs certificate server of both sides, and the connection of network and the transmitting-receiving of data be all without Internet net, so Information Security is high.By authentication mechanism, Internet network host can not arbitrarily be accessed GPRS mobile terminal, and unverified GPRS mobile terminal is these enterprise servers of inaccessible also, improves the fail safe of GPRS mobile terminal and enterprise servers.
Adopt SIBAS32(Siemens Bahn Automatisierungs System, Siemens's railway automation system) be the distributed locomotive control of core, based on GSM-R wireless communication technology, set up the radio data channels between a locomotive and ground, real-time passes terrestrial information processing center in time back locomotive running status in transit (such as operational factor and fault data, locomotive unit number etc.).System adopts SIBAS G language to carry out logical design and processing; adopt SIBAS promptly Comprehensive Control instruction of KLIP equipment and information; and promptly and accurately send CCU to, and provide MMI and LCDM and driver and conductor to carry out alternately, realize the control of HXD1 type locomotive, monitoring and defencive function.
At present, although the communications industry is already ripe for the network monitor technology of GSM, current various monitoring equipments are to the collection of locomotive operation data and storage mostly on locomotive.Therefore, how to utilize the powerful real-time running state data of software and hardware resources Treatment Analysis locomotive in ground, with the real-time interactive information of locomotive, just need to set up a vehicle-ground wireless communication system based on GSM-R.
Summary of the invention
The invention provides a kind of vehicle-ground wireless communication system of the HXD1 of being applied to type locomotive running status, Real-Time Monitoring locomotive running state, and fault is carried out to Precise Diagnosis, improve locomotive security of operation in transit and maintenance efficiency.
In order to realize above-mentioned technical purpose, technical scheme of the present invention is that a kind of vehicle-ground wireless communication system that is applied to HXD1 type locomotive running status, comprising:
On-vehicle information subsystem for collection vehicle running state information;
For analyzing the terrestrial information subsystem of travel condition of vehicle;
Described on-vehicle information subsystem connects terrestrial information subsystem by wireless network,
On-vehicle information subsystem comprises data acquisition module, data preprocessing module, wireless communication module, memory module, LCD MODULE, touch screen module and vehicle-mounted PC104 computer module, data acquisition module communicates to connect vehicle-mounted PC104 computer module by data preprocessing module, vehicle-mounted PC104 computer module also communicates to connect with wireless communication module, memory module, LCD MODULE, touch screen module respectively, described wireless communication module connects terrestrial information subsystem by wireless communication
Terrestrial information subsystem comprises for the wireless communication server group of radio communication with for the treatment of the HXD1 ground communication server of analyzing data, described wireless communication server group is connected with HXD1 ground communication server communication, and wireless communication server group connects on-vehicle information subsystem by wireless communication.
Described a kind of vehicle-ground wireless communication system that is applied to HXD1 type locomotive running status, described on-vehicle information subsystem carries out radio communication with terrestrial information subsystem by GSM-R/GPRS network and is connected, and according to application layer data protocol format, carry out the transmission of data, the wireless communication module of on-vehicle information subsystem is GPRS module, the wireless communication server group of terrestrial information subsystem comprises GPRS server, radius server, dns server, described GPRS server and radius server, dns server communication connection.
Described a kind of vehicle-ground wireless communication system that is applied to HXD1 type locomotive running status, the described included data content of application layer data protocol format has: upload storage sequence number, uploading data time, locomotive unit number, driver's numbering, SIM card number, fault type numbering, failure code, time of failure, fault extinction time, parking maintenance record, MVB data packet length, MVB data content and expansion reserved field.
Described a kind of vehicle-ground wireless communication system that is applied to HXD1 type locomotive running status, the GPRS module of on-vehicle information subsystem comprises GPRS communication module and SIM card module, and described GPRS communication module and SIM card module communicate to connect respectively vehicle-mounted PC104 computer module.
Described a kind of vehicle-ground wireless communication system that is applied to HXD1 type locomotive running status, the EGSM900/GSM1800 two-frequency operation frequency range of the compatible traditional GSM network of GPRS processing unit of described on-vehicle information subsystem is also supported ICP/IP protocol.
Described a kind of vehicle-ground wireless communication system that is applied to HXD1 type locomotive running status, described data acquisition module comprises serial data collection module and MVB acquisition module, described serial data collection module gathers the SIBAS diagnostic data of locomotive by RS232 serial communication port, described MVB acquisition module connects MVB bus and collection connects car service data, and serial data collection module and MVB acquisition module communicate to connect respectively vehicle-mounted PC104 computer module.
Described a kind of vehicle-ground wireless communication system that is applied to HXD1 type locomotive running status, the data preprocessing module of described on-vehicle information subsystem, its course of work is: first locomotive network data are carried out verification, unpacked and information extraction, then according to the priority of the character setting data transmission of data, reject the data of the repetition periodically gathering, then by the transfer of data after processing to vehicle-mounted PC104 computer module.
Described a kind of vehicle-ground wireless communication system that is applied to HXD1 type locomotive running status, the reservoir module of on-vehicle information subsystem comprises controlled area and recording areas, in described recording areas, be provided with the spatial cache that at least can deposit 50 locomotive records, in described controlled area, be provided with a record pointer and a send finger, record pointer points to the address of the new packet gathering in reservoir module, the address of the packet that send finger sensing will send in reservoir module, when overlapping, send finger and record pointer represent to have sent all packets, and empty buffer area.
Technique effect of the present invention is, improved the fail safe of the operation in transit of HXD1 type locomotive, by GSM-R/GPRS network, set up the data transmission channel of a locomotive and terrestrial wireless communication, by the state parameter of locomotive network control system of operation in transit and the fault data of warning real-time send to ground monitoring center, thereby ground monitoring center can real-time tracing and the safe condition in transit of monitoring locomotive, and the data that send of the intelligent diagnostics of setting up by the powerful software and hardware resources in ground and long-distance service system analysis and research locomotive, carry out the reason that intelligent diagnostics analysis finds fault to occur, and provide corresponding solution and measure, pass through wireless data channel, inform that driver and conductor gets rid of potential potential safety hazard.The data message of take between car ground is set up locomotive running state alternately supervisory control system in transit as basis greatly reduces the locomotive entering garage repair and maintenance time, improves the efficiency of locomotive depot's maintenance, increases the density that locomotive overlapping investment is used, and promotes the economic benefit of locomotive depot.
The present invention has following innovation and characteristic:
1. for the research of on-vehicle information subsystem, vehicle-mounted three-layer architecture is proposed.Propose to gather locomotive status data by MVB bus, by serial ports, gather the design of the acquisition module of locomotive diagnostic data.In order to ensure locomotive operation safety and monitoring in real time, the preliminary treatment mechanism such as the priority of setting data and compression repeating data.Large for image data amount, the characteristic such as wireless transmission is unstable, in data memory module design buffer area mechanism, and completes hardware principle design.For the demand of information interaction between car ground, adopt liquid crystal display screen and touch-screen to complete the design of hardware and software of vehicle-mounted human-computer interaction module.
2. the research of transmitting for car-ground radio data.Provide the detailed design of ground access GPRS network.Research GPRS communication protocol stack, and analyze train-ground communication data protocol transfer process.Operation principle and flow process that between research car ground, transmission connects, the data protocol form of design of communications.For vehicle-mounted part, select the hardware principle of EM310 design vehicle-mounted GPRS module, adopt AT order to complete the initialization login of the vehicle-mounted GPRS of linking, the programmed transmission of data of employing Winsock.
3. for the research of terrestrial information subsystem, propose operation principle and the thinking of Intelligent Fault Diagnose Systems, in conjunction with diagnostic model design error failure mark sheet and signal characteristic table, and complete the dynamic design of diagnostic logic.Mutual for car ground information, completes the design of car ground interactive database, and corresponding fault form is provided.According to locomotive security needs in transit, determine the monitor data content of seven equipment such as CCU, TCU, BCU, MVB, PWI, AUX, 4QC.For ensureing security of operation and the data management of supervisory control system, set user right, the design of completing user management database and data base administration design.
Below in conjunction with accompanying drawing, the invention will be further described.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of HXD1 locomotive ground wireless communication subsystem;
Fig. 2 is the theory diagram of HXD1 locomotive vehicle-mounted GPRS module;
Fig. 3 be HXD1 locomotive communicate to connect flow chart;
Fig. 4 is the vehicle-mounted device hardware units structure chart of HXD1;
Fig. 5 is the hardware designs figure of locomotive reservoir module;
Fig. 6 is HXD1 train-ground communication protocol format figure.
Embodiment
Described on-vehicle information subsystem, based on TCN/MVB network, for gathering running state information and the SIBAS diagnostic data of locomotive network control system, sends in real time terrestrial information subsystem by GSM-R/GPRS wireless communication technology and carries out information processing.In addition, on-vehicle information subsystem receives terrestrial information subsystem feedack, offers driver and conductor and instructs and point out;
Described terrestrial information subsystem is realized locomotive running state information in transit is analyzed and refinement, the data analysis of locomotive operation recorded information, the long-distance intelligent diagnosis of fault etc., for locomotive safe, operation efficiently in transit provides powerful back-office support.
Further, described on-vehicle information subsystem is as the information source of whole system, it mainly completes running state data and the fault data of harvester vehicle control, and sends the processing of terrestrial information subsystem analysis to, and the process information that receives ground instructs driver and conductor to launch maintenance work.
Further, described on-vehicle information subsystem mainly contains three-decker and forms, and is respectively vehicle-mounted device hardware units, vehicle-mounted operating system unit and vehicular applications unit: wherein:
Vehicle-mounted device hardware units is basis, together with it is closely connected with HXD1 type locomotive with MVB bus by serial ports;
Vehicle-mounted operating system unit is installed in the car-mounted computer of vehicle-mounted device hardware units, development platform is provided to vehicular applications unit;
Vehicular applications unit completes all functions of on-vehicle information subsystem, is included in the data acquisition of programming in WINCE system, transfer of data, and ground data receives and the function such as man-machine interaction.
Further, described vehicle-mounted device hardware units is mainly comprised of part of data acquisition, data preprocessing part, GPRS module, memory module, LCD MODULE, touch screen module and vehicle-mounted PC104 computer module.Part of data acquisition is comprised of serial data collection module, two parts of MVB acquisition module.
Described vehicle-mounted PC104 computer module, by RS232 serial communication port, can be realized SIBAS diagnostic data is gathered, and its interface adopts DB9 standard.Vehicle-mounted PC104 computer module is connected with the active network interface card of MVB by PC104 bus, thereby realizes the collection to the running state data of each subelement module of SIBAS in MVB bus.
In described vehicle-mounted operating system unit, the present invention selects WINCE6.0 embedded OS.
Described vehicular applications unit is the top of on-vehicle information subsystem, mainly by data acquisition module, and data preprocessing module, communication module, interactive module and initialization module four parts form, wherein:
Described data acquisition module specifically completes the collection of MVB data and controls, the collection control of serial ports RS232 data and the preprocessing function of image data.
Described data preprocessing module complete locomotive network data verification, unpack and information extraction, and according to the priority of the character setting data transmission of data, reject the data that periodically repeat.
Described communication module specifically completes the transmission of image data and controls, the finger daemon that the reception of ground data is controlled and communicated to connect.
Described interactive module specifically completes the information interaction that driver and conductor and system are undertaken by touch-screen input, gathers the storage administration that receives data, the demonstration of car ground interaction data.
Described initialization module completes and after on-vehicle information subsystem powers on, enters behind vehicular applications unit collecting device, Wireless Telecom Equipment, the driver of man-machine interaction touch panel device and the configuration of initiation parameter.
Further, the data preprocessing module of on-vehicle information subsystem is carried out preliminary treatment to the data that collect, comprise network data verification, unpack and information extraction, the setting data priority because transmission bandwidth is limited, reject the data of the repetition periodically gathering, to extract the valid data that can truly reflect diagnosis object state, improve efficiency of transmission in communication line.
According to the degree of the significance level of data and locomotive operation safety and data-bias normal value, native system is the significance level to traffic safety according to data, image data is set to 4 priority levels, temperature such as bearing, the rotating speed of traction electric machine, the pressure of train pipe etc. is exactly the data that rank is very high, again such as the data rank of locomotive contact feedback signal, supplementary reservoir pressure is just corresponding lower, the data that priority is higher, the constraint of its real-time is stronger.In locomotive data gatherer process, a plurality of locomotive equipments can be according to self need to install transducer image data additional as bearing at the key position of locomotive, and the partial data gathering is for pressing the data of time periodic sampling, when normal operation, change little, one of data that duplicate are the data that come from the same checkpoint of a plurality of equipment collections, one is to come from the periodically data of duplicate detection to change not quite when normal, can ignore.Therefore, data acquisition module need to carry out data preliminary treatment to the data that gather---and the data that a plurality of equipment collected to same parts same position are carried out merger fusion, and reject changing not the very much not data of impact diagnosis.Thereby effectively avoid the limited communication resource and data storage resource to be wasted in nonsensical transfer of data and stores processor.
As the most important part of the present invention, described communication module is by HXD1 vehicle-carrying communication part, GSM-R/GPRS network, and ground communication part three parts form.HXD1 type locomotive running state monitoring system in transit is connected to HXD1 ground communication server by locomotive depot's local area network (LAN), thereby is connected to GPRS network.
HXD1 vehicle-carrying communication part is comprised of GPRS module, PC104 module, SIM card module and memory module.It is connected with base station BS S system by air interface (Um), thereby links GSM-R/GPRS network.In GSM-R/GPRS network, each MS is stored in information in SIM card, to distinguish mobile terminal.
GSM-R/GPRS network is comprised of BSS, SGSN, GGSN three parts.In GPRS network, adopt a component layers structure protocol stack complete the transmission of information data.GPRS network is supported ICP/IP protocol system, so vehicle-mounted GPRS module is directly programmed and used TCP/UDP agreement by Socket.
HXD1 ground communication is partly comprised of GPRS server, radius server, dns server, HXD1 ground communication server.Main function is to intercept the request of vehicle-carrying communication module in link, responds its data upload and download.
The invention provides concrete running: the GPRS of locomotive depot center is by the GGSN node of an APN access via telephone line GSM-R, and GPRS interface server is that locomotive depot distributes special-purpose APN.Between both sides' dlsw router, adopt privately owned fixed ip address to carry out wide area connection.When the SIM card of vehicle-mounted GPRS module is logined on GGSN, GGSN delivers to radius server the authentication information of vehicle-mounted GPRS module (SIM card number, APN title etc.) and carries out authentication.To be verified errorless after, radius server just distributes the dynamic private IP address of vehicle-mounted GPRS terminal to GPRS server request.Meanwhile, the GGSN APN that request obtains according to vehicle-mounted GPRS module, sends inquiry request to dns server, and APN is resolved to corresponding IP address, by locomotive depot's local area network (LAN), is connected to the server of supervisory control system.Now, the supervisory control system server on vehicle-mounted GPRS mobile terminal and ground completes the link of data path.
As shown in Figure 1, the GPRS of locomotive depot center is by the GGSN node of an APN access via telephone line GSM-R, and GPRS interface server is that locomotive depot distributes special-purpose APN.Between both sides' dlsw router, adopt privately owned fixed ip address to carry out wide area connection.When the SIM card of vehicle-mounted GPRS module is logined on GGSN, GGSN delivers to radius server the authentication information of vehicle-mounted GPRS module (SIM card number, APN title etc.) and carries out authentication.To be verified errorless after, radius server just distributes the dynamic private IP address of vehicle-mounted GPRS terminal to GPRS server request.Meanwhile, the GGSN APN that request obtains according to vehicle-mounted GPRS module, sends inquiry request to dns server, and APN is resolved to corresponding IP address, by locomotive depot's local area network (LAN), is connected to the server of supervisory control system.Now, the supervisory control system server on vehicle-mounted GPRS mobile terminal and ground completes the link of data path.
As shown in Figure 2, vehicle-mounted GPRS module is comprised of vehicle-mounted PC104, gsm module EM310, external antenna, SIM card and network indicator light.Wherein EM310 module and vehicle-mounted PC104 module communicate by serial port RS232, and traffic rate can reach 115.2kbps the soonest.The communication protocol of PC104 module and EM310 is AT Command Set, but the embedded ICP/IP protocol of EM310, and so in the exploitation of native system, AT order is just used for the control parameter designing to GPRS, transfer of data adopts Transmission Control Protocol.In RS232 serial communication, except conventional serial ports sends (TXD), serial ports receives (RXD), it is in data transfer state or in AT command delivery status that DCD signal can detect GPRS module.DTR signal is used for notifying GPRS module transmission work to finish.RING change list is shown with incoming call incoming call, can link the interrupt pin of PC104 for the state of inquiry GPRS.
As shown in Figure 3, provide vehicle-carrying communication module login GPRS network and set up the link-attached flow chart of train-ground communication, one has 12 steps, specifically as shown in Figure 3.
Step 1: the request of vehicle-carrying communication module application car ground transfer of data, application is set up GPRS and connected.
The application of step 2:BSS response vehicle-carrying communication module, and distribute its GPRS connecting channel.
Step 3:BSS is to SGSN application GPRS connecting channel.
Step 4:SGSN activates the GPRS connecting channel of vehicle-carrying communication module.
Step 5: vehicle-carrying communication module is carried out the attachment flow of SGSN.
Step 6:SGSN activates the vehicle-mounted request of adhering to, and is connected to GGSN.
Step 7:GGSN, according to APN analysis result, is connected to the GPRS of locomotive depot center.
Step 8:GPRS verifies at center vehicle-mounted SIM card number, dynamic IP address allocation, and add GPRS to connect list.
Step 9: the vehicle-mounted GPRS network of setting up connects, and application train-ground communication connects.
Step 10:GPRS center Route Selection, is connected to ground communication server.
Step 11: the connection request of ground communication server response vehicle-carrying communication module.
Step 12: vehicle-carrying communication module and ground communication server carry out data communication.
As shown in Figure 4, vehicle-mounted device hardware units is mainly comprised of part of data acquisition, data preprocessing part, GPRS module, memory module, LCD MODULE, touch screen module and car-mounted computer module, and wherein part of data acquisition is comprised of serial data collection module, two parts of MVB acquisition module.
As shown in Figure 5, vehicle-mounted memory cell is connected with car-mounted computer module with address bus by control bus, data/address bus, and wherein control bus comprises sheet selected control system, reads control and write control, and data wire is a byte, address wire is compatible ISA interface, adopts the address bus form of 20.Buffer area is set in memory module, and points to send finger and record pointer.
As shown in Figure 6, the application layer data that on-vehicle information subsystem is GPRS by the Information encapsulation of collection also sends it to terrestrial information subsystem.
The model that wherein car-mounted computer module adopts Shenzhen Sheng Bo company to produce is the PC104 kernel control module of SCM/SPT2F GX1, be embedded with 486 processor cores at a high speed, support MMX instruction set extension, speed is up to 300MHz, comprise CPU, RAM, BIOS, maximum 6 serial ports, 1 parallel interface, maximum 4 Ethernet interfaces, 2 USB mouths, standard key mouse interface, audio interface, modular system controller (DMA passage, interrupting channel, timer), show and support CRT and TFT LCD, maximum 4M shares video memory, ultimate resolution can reach 1280 * 1024, on plate, DOC socket can be supported up to 1GBDiskOnChip.Have WatchDog Timer and guarantee system reliability service, and a whole set of systemic-function with IBMPC/AT compatibility is provided, the complexity of the design of these much large simplification systems, reduces the cost of developing.PC104 module can be supported the multiple systems such as LINUX, WINCE, MSDOS, selects WINCE6.0 embedded OS herein, and reason has WINCE system that abundant bottom layer driving resource is provided, and facilitates the manipulation of bottom hardware; WINCE system has the powerful developing instrument of Table top type easily, the realization of aspect software and debugging; WINCE system graphical interfaces is good, is convenient to develop visual human-computer interaction interface.
Claims (8)
1. a vehicle-ground wireless communication system that is applied to HXD1 type locomotive running status, is characterized in that, comprising:
On-vehicle information subsystem for collection vehicle running state information;
For analyzing the terrestrial information subsystem of travel condition of vehicle;
Described on-vehicle information subsystem connects terrestrial information subsystem by wireless network,
On-vehicle information subsystem comprises data acquisition module, data preprocessing module, wireless communication module, memory module, LCD MODULE, touch screen module and vehicle-mounted PC104 computer module, data acquisition module communicates to connect vehicle-mounted PC104 computer module by data preprocessing module, vehicle-mounted PC104 computer module also communicates to connect with wireless communication module, memory module, LCD MODULE, touch screen module respectively, described wireless communication module connects terrestrial information subsystem by wireless communication
Terrestrial information subsystem comprises for the wireless communication server group of radio communication with for the treatment of the HXD1 ground communication server of analyzing data, described wireless communication server group is connected with HXD1 ground communication server communication, and wireless communication server group connects on-vehicle information subsystem by wireless communication.
2. a kind of vehicle-ground wireless communication system that is applied to HXD1 type locomotive running status according to claim 1, it is characterized in that, described on-vehicle information subsystem carries out radio communication with terrestrial information subsystem by GSM-R/GPRS network and is connected, and according to application layer data protocol format, carry out the transmission of data, the wireless communication module of on-vehicle information subsystem is GPRS module, the wireless communication server group of terrestrial information subsystem comprises GPRS server, radius server, dns server, described GPRS server and radius server, dns server communication connection.
3. a kind of vehicle-ground wireless communication system that is applied to HXD1 type locomotive running status according to claim 2, it is characterized in that, the described included data content of application layer data protocol format has: upload storage sequence number, uploading data time, locomotive unit number, driver's numbering, SIM card number, fault type numbering, failure code, time of failure, fault extinction time, parking maintenance record, MVB data packet length, MVB data content and expansion reserved field.
4. a kind of vehicle-ground wireless communication system that is applied to HXD1 type locomotive running status according to claim 2, it is characterized in that, the GPRS module of on-vehicle information subsystem comprises GPRS communication module and SIM card module, and described GPRS communication module and SIM card module communicate to connect respectively vehicle-mounted PC104 computer module.
5. a kind of vehicle-ground wireless communication system that is applied to HXD1 type locomotive running status according to claim 2, it is characterized in that, the EGSM900/GSM1800 two-frequency operation frequency range of the compatible traditional GSM network of GPRS processing unit of described on-vehicle information subsystem is also supported ICP/IP protocol.
6. a kind of vehicle-ground wireless communication system that is applied to HXD1 type locomotive running status according to claim 1, it is characterized in that, described data acquisition module comprises serial data collection module and MVB acquisition module, described serial data collection module gathers the SIBAS diagnostic data of locomotive by RS232 serial communication port, described MVB acquisition module connects MVB bus and collection connects car service data, and serial data collection module and MVB acquisition module communicate to connect respectively vehicle-mounted PC104 computer module.
7. a kind of vehicle-ground wireless communication system that is applied to HXD1 type locomotive running status according to claim 1, it is characterized in that, the data preprocessing module of described on-vehicle information subsystem, its course of work is: first locomotive network data are carried out verification, unpacked and information extraction, then according to the priority of the character setting data transmission of data, reject the data of the repetition periodically gathering, then by the transfer of data after processing to vehicle-mounted PC104 computer module.
8. a kind of vehicle-ground wireless communication system that is applied to HXD1 type locomotive running status according to claim 1, it is characterized in that, the reservoir module of on-vehicle information subsystem comprises controlled area and recording areas, in described recording areas, be provided with the spatial cache that at least can deposit 50 locomotive records, in described controlled area, be provided with a record pointer and a send finger, record pointer points to the address of the new packet gathering in reservoir module, the address of the packet that send finger sensing will send in reservoir module, when overlapping, send finger and record pointer represent to have sent all packets, and empty buffer area.
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