CN101083590A - TCN railway engine network control experiment platform - Google Patents
TCN railway engine network control experiment platform Download PDFInfo
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- CN101083590A CN101083590A CN 200710011426 CN200710011426A CN101083590A CN 101083590 A CN101083590 A CN 101083590A CN 200710011426 CN200710011426 CN 200710011426 CN 200710011426 A CN200710011426 A CN 200710011426A CN 101083590 A CN101083590 A CN 101083590A
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Abstract
The invention discloses locomotive network control test platform based on TCN. It includes WTB bus board card, MVB bus board card, CPU board card, power board card, back board. The WTB, MVB, CPU board cards are connected with back board bus. The power board card is used to supply working voltage for them. The first one is used to collect and transmit data for train bus device. The second one is used to collect and control the data. And the third one is used to do center processing the data and create ETHERNET, RS232, and RS485 monitoring controlling data flow. The platform satisfies international standard TCN network technique, has the advantages of new design, high reliability, suiting for applying in our country rolling stock and electrical plant industry fields etc.
Description
Technical field
The present invention relates to the electric locomotive network control based on the TCN standard of railway systems, relate in particular to a kind of TCN locomotive network control test platform that is used for the field network equipment test.
Background technology
In China, electric locomotive adopts centralized control mode always, the i.e. collection of on-the-spot all signals all needs to be connected on the centralized control computer by rigid line with control, because number of conductors is extremely many, the probability that the contact place breaks down is very big, therefore the reliability of system is very low, the failure rate height, and maintenance difficulty is very big.Along with external advanced person's TCN network control technology high-speed development, the electric locomotive of China also begins to adopt successively the TCN technology.
IEC61375-1 " TCN " (being called for short the TCN standard) is an international standard, also is the China railways industry standard.The TCN standard is the standard for Fieldbus for the design of this special application field of rail vehicles, thus make various rolling stocks can mutually interconnected extension, the equipment of different vendor can be interconnected.The TCN standard definition MVB (multifunctional train bus) and two kinds of bus forms of WTB (wired train bus).The TCN standard has just been stipulated the network data transmission mode, how to make up the test platform of whole TCN network control system, has important innovative significance for the modernization of railway locomotive industry.Compare with traditional control mode, adopt the TCN network control that following characteristics are arranged:
The main feature of table 1 TCN
| Characteristic | Wired train bus WTB | Multifunction vehicle bus MVB |
| Bus structures | The type variable structure can be organized into groups automatically when forming when changing | Fixed structure and device address |
| The bus medium | The multiple twin shielding conductor, |
Twisted-pair feeder (20m based on RS-485,32 equipment) transformer-coupled multiple twin shielding conductor (200m, 32 equipment) optical fiber (2000m, 2 equipment) of band star coupling device |
| Physically-redundant | The double physical medium | The double physical medium |
| Signal form | The Manchester code that 16～32 frame heads are arranged | The Manchester code that delimiter is arranged |
| Signal data speed | 1.0Mbit/s | 1.5Mbit/s |
| Address section | Process data (1 of every node) and message data all are 8 bit address | Process data (logical address) and message data (physical address) all are 12 bit address |
| Physical address | Point-to-point and broadcasting | Point-to-point and broadcasting |
| |
4～132 variable eight hytes | With being decided to be 16,32,64,128 or 256 |
| Integrality | Every frame FCS-16, frame length inspection and Manchester's code | IEC60870 verification sequence and frame length inspection |
| Medium distributes | Distribute by a bus master | Distribute by a bus master |
| Sovereignty shift | Each node all can become strong bus master (according to order) or weak bus master (according to acquiescence) | Transmit bus manager by token and become the bus master |
| Bus master's redundancy | Just after the operation, the bus sovereignty are transferred to another node | Sovereignty shift automatically, carry out redundancy check by the token transmission |
| The link layer service | The data that the process data periodic data is point-to-point by the sporadic data of data set message data of source addressable broadcast or broadcasting data messages monitoring data periodic data/sporadic data/address bus is managed | |
The TCN product of China's locomotive industry employing at present all is external standard component, key equipment is dependence on import always, though the Related product of independent research is arranged, all be simple substitution and substituting, there not be formation to be applied to the TCN network control test platform of locomotive industry.So succeeding in developing of TCN locomotive network control test platform indicates that whole TCN test platform technology capture, and filled up the blank in domestic this field, make the TCN locomotive network control test platform of China technical a new step.
Summary of the invention
The purpose of this invention is to provide a kind of novel TCN locomotive network control test platform, whether the underproof locomotive network control system of main test finishes the function of following two aspects: be both to have realized MVB process data, message data, monitoring data and Network Management Function on the one hand, also realize functions such as WTB just moves, link layer management, process data, message data; Be to finish locomotive Central Control Function, demonstration fault diagnosis functions, failure protection function and two joint car weight joint control system functions on the other hand.
Technical solution of the present invention is achieved in that a kind of locomotive network control test platform based on TCN, it is characterized in that comprising WTB integrated circuit board, MVB integrated circuit board, CPU board card, power supply integrated circuit board and backboard, described WTB integrated circuit board, MVB integrated circuit board and CPU board card all are to be connected by the core bus on the backboard, and the power supply integrated circuit board provides operating voltage for WTB integrated circuit board, MVB integrated circuit board and CPU board card; Described WTB integrated circuit board is responsible for the data acquisition and the transmission of train bus-line equipment; Described MVB integrated circuit board is responsible for the data acquisition and the control of vehicle bus equipment; The central authorities that described CPU board card is responsible for train bus-line and vehicle bus device data handle and generate ETHERNET, RS232 and RS485 monitor data stream.
Described WTB bus integrated circuit board comprises WTB RAM Shared, MCU microcontroller, hdlc controller, fpga logic processor, WTB bus driver and WTB isolating transformer, described device data stream is from core bus process WTB RAM Shared, be sent in the MCU microcontroller, by the signal encoding modulation of hdlc controller and fpga logic processing apparatus, process WTB bus driver and WTB isolating transformer are sent to train bus-line and get on again; Described WTB bus integrated circuit board can also receive the transmission data on the train bus-line, passes back to after treatment on the core bus of backboard.
Described MVB bus integrated circuit board comprises MVB RAM Shared, MVB protocol controller, MVB bus driver and MVB isolating transformer, described device data stream allows through the MVB protocol controller from core bus, import the MVB RAM Shared into, read in then in the MVB protocol controller, by the Signal Spacing adjustment of MVB bus driver and MVB isolating transformer, be sent to vehicle bus and get on again; Described MVB bus integrated circuit board can also receive the transmission data on the vehicle bus, passes back to after treatment on the core bus of backboard.
Described cpu bus integrated circuit board comprises central processing unit, Ethernet protocol controller, RS232 protocol controller and RS485 protocol controller, described central processing unit transmits train bus-line and vehicle bus data flow respectively, core bus through backboard imports WTB bus integrated circuit board and MVB bus integrated circuit board into, central processing unit generates the data flow that is used for the rail vehicle diagnostic analysis with the data message of gathering simultaneously, from Ethernet, RS232 and the output of RS485 interface.
Described MCU microcontroller will read WTB process data, message data or the monitoring data of RAM Shared with inquiry mode, be sent to and form HDLC frame format data flow in the hdlc controller, to be normal data perhaps, write RAM Shared from the parsing of the data stream of hdlc controller.
The signal that described hdlc controller transmits the MCU microcontroller is converted into the HDLC data flow and sends into fpga logic processor formation manchester encoded signals, perhaps will be converted into the HDLC data flow from the manchester encoded signals of fpga logic processor.
Described fpga logic processor is the codec of WTB bus signals, to be converted into Manchester coded signal from the signal flow of hdlc controller, send into the WTB bus driver, perhaps will be converted into the HDLC data flow and be sent to hdlc controller from Manchester coded signal of WTB bus driver.
Described WTB bus driver and WTB isolating transformer are that the isolation of WTB external circuit signal process magnetic is sent into the WTB bus driver or the signal of WTB bus driver is sent into the WTB network through high frequency transformer.
Described MVB protocol controller reads MVB process data, message data or the monitoring data of RAM Shared with inquiry mode, be converted into Manchester coded signal, import into and form the standard electrical signal in the MVB bus driver, perhaps will be from Manchester coded signal of MVB bus driver, resolve to the standard signal data, write RAM Shared.
Described MVB bus driver will be converted into the differential signal of standard from Manchester signal of MVB protocol controller, pass to the MVB network, perhaps will be converted into the discernible Manchester of MVB protocol controller signal from the differential signal of MVB network.
Described core bus structure is combined into an integral device with various integrated circuit boards, and the power supply integrated circuit board adopts modularized design that the power supply of whole test platform is provided.
Native system is that a kind of TCN network test technology based on IEC61375-1 and EN50155 standard is applied to railway locomotive control field, have modern design, high reliability, high flexibility and characteristics with low cost, have wide practical use in the rolling stock field.
Description of drawings
Fig. 1 is a structured flowchart of the present invention;
Fig. 2 is a CPU board card structure block diagram of the present invention;
Fig. 3 is a WTB bus board card structure block diagram of the present invention;
Fig. 4 is the structured flowchart of MVB bus integrated circuit board of the present invention;
Fig. 5 is ARM and peripheral circuit interface circuit figure thereof in the CPU board card of the present invention;
Fig. 6 is the circuit connection diagram of MCU microcontroller and hdlc controller in the WTB bus integrated circuit board of the present invention;
Fig. 7 is the circuit connection diagram of fpga logic processor in the WTB bus integrated circuit board of the present invention;
Fig. 8 is the circuit connection diagram of MVB protocol controller in the MVB bus integrated circuit board of the present invention;
Fig. 9 is TCN locomotive network control test platform topology diagram;
Fig. 1 is a specification digest accompanying drawing of the present invention.
Among the figure: 1, WTB bus integrated circuit board, 2, MVB bus integrated circuit board, 3, CPU board card, 4, the power supply integrated circuit board, 5, backboard, 6, central processing unit, 7, Ethernet protocol controller, 8, the RS232 protocol controller, 9, the RS485 protocol controller, 10, WTB RAM Shared, 11, MCU microcontroller, 12, hdlc controller, 13, the fpga logic processor, 14, WTB bus driver, 15, WTB isolating transformer, 16, the MVB RAM Shared, 17, the MVB protocol controller, 18, MVB bus driver, 19, the MVB isolating transformer.
Embodiment
Shown in Fig. 1～9, a kind of locomotive network control test platform based on TCN, it is characterized in that comprising WTB bus integrated circuit board 1, MVB bus integrated circuit board 2, CPU board card 3, power supply integrated circuit board 4 and backboard 5, described WTB bus integrated circuit board 1, MVB bus integrated circuit board 2 are connected by the core bus on the backboard 5 with CPU board card 3; Described power supply integrated circuit board 4 is installed on the backboard 5 unifies power supply to WTB bus integrated circuit board 1, MVB bus integrated circuit board 2 and CPU board card 3; Described WTB bus integrated circuit board 1 is responsible for gathering and controlling the data flow of equipment on the WTB bus; Described MVB bus integrated circuit board 2 is responsible for gathering and controlling the data flow of equipment on the MVB bus; The central authorities that described CPU board card 1 is responsible for WTB bus and MVB bus apparatus data handle and generate ETHERNET, RS232 and RS485 monitor data stream.
WTB bus integrated circuit board 1 comprises WTB RAM Shared 10, MCU microcontroller 11, hdlc controller 12, fpga logic processor 13, WTB bus driver 14 and WTB isolating transformer 15.Described device data imports in the MCU microcontroller 11 by the core bus and the WTB RAM Shared 10 of backboard 5, by the signal encoding modulation of hdlc controller 12 and fpga logic processing apparatus 13, process WTB bus driver 14 and WTB isolating transformer 15 are sent to train bus-line and get on again; Described WTB bus integrated circuit board can also receive the transmission data on the train bus-line, passes back to after treatment on the core bus of backboard 5.WTB isolating transformer 11 is a high-frequency isolation transformer, and its isolation voltage reaches 1500Vrms, and EMC satisfies the IEC61000-4 standard.
MVB bus integrated circuit board 2 comprises MVB RAM Shared 16, MVB protocol controller 17, MVB bus driver 18 and MVB isolating transformer 19.Described device data stream allows through MVB protocol controller 17 from the core bus of backboard 5, import MVB RAM Shared 16 into, read in then in the MVB protocol controller 17, by the Signal Spacing adjustment of MVB bus driver 18 and MVB isolating transformer 19, be sent to vehicle bus and get on again; Described MVB bus integrated circuit board can also receive the transmission data on the vehicle bus, passes back to after treatment on the core bus of backboard 5.MVB isolating transformer 19 is a high-frequency isolation transformer, and its isolation voltage reaches 1500Vrms, and EMC satisfies the IEC61000-4 standard.
Cpu bus integrated circuit board 1 comprises central processing unit 6, Ethernet protocol controller 7, RS232 protocol controller 8 and RS485 protocol controller 9.Described central processing unit 6 transmits train bus-line and vehicle bus data flow respectively, core bus through backboard 5 imports WTB bus integrated circuit board 1 and MVB bus integrated circuit board 2 into, central processing unit 6 generates the data flow that is used for the rail vehicle diagnostic analysis with the data message of gathering simultaneously, externally exports through ethernet controller 7, RS232 controller 8 and RS485 controller 9 respectively.In addition, central processing unit 6 also is responsible for providing working power and real-time clock.
Wherein WTB bus integrated circuit board 2 is the train bus-line integrated circuit board, and MVB bus integrated circuit board 3 is the vehicle bus integrated circuit board; MCU microcontroller 11 is that Z85230, WTB isolating transformer 15 are VAC-X123 for MVBC01, MVB bus driver 18 for LCT1485, MVB isolating transformer 19 for VAC-X123, MVB protocol controller 17 for Z8S180, hdlc controller; Central processing unit 6 is the core of whole system for ARM (NET-ARM) master controller, and it is made up of two parts: i.e. hardware and software.The effect of hardware mainly is the exchanges of being responsible for the processing of the central authorities of train bus-line and vehicle bus data and two kinds of bus data streams, and the generation of Ethernet, RS485 and RS232 data flow, also will be responsible for simultaneously working power and real-time clock etc. are provided, software is then finished network protocol stack function and locomotive control function.MCU microcontroller 11 is WTB server devices, process data, message data and the monitoring data that it is responsible for will transmitting among the common prosperous RAM 10 of WTB changes into the data flow of WTB procotol defined and delivers to hdlc controller 12, perhaps the serial signal that hdlc controller 12 is sent here resolves to normal data and deposits it in WTB RAM Shared 10, cause interrupt request singal thereupon, read for central processing unit 6.Be connected to core bus between each integrated circuit board and the integrated circuit board, this core bus has been followed the VME bus of standard, the core bus socket is the physical structure that above-mentioned integrated circuit board is coupled together, it carries out cabling and level match with the peace of the signal between integrated circuit board according to special requirement, and the external power power supply interface of the 110V of whole TCN network control test platform is provided simultaneously.Described back plate design is that the core bus signal is the 5V system, has high reliability, good flexibility energy and Scalable Performance according to the characteristics design of the on-the-spot electric circumstance of locomotive; What power supply integrated circuit board 4 adopted is the method for modularized design, and the core power module of use is produced the power module chip for Japanese COSEL company, and purpose is that+110V voltage transitions is+5V power supply, supplies with that integrated circuit board uses in the cabinet, is a very stable power.
As shown in Figure 9, be by above-mentioned three platforms that integrated circuit board is constructed, corresponding with locomotive, it is the heavily locomotives of connection of two joints, two joint locomotives link together by the WTB bus, and every joint locomotive comprises three integrated circuit boards, and MVB bus integrated circuit board is gathered the information of locomotive separately, WTB bus integrated circuit board sends to other locomotives with the information of this locomotive, receives the information of other locomotives simultaneously.More if desired locomotive double heading just needs the such equipment of a cover so in each locomotive.System architecture figure as shown in the figure, TCN locomotive network control test platform is high-visible: forms the central control unit of TCN network, the collection performance element of integrated circuit boards such as DX, the AX composition TCN network of MVB one class integrated circuit board and bottom by WTB bus integrated circuit board, MVB bus integrated circuit board and CPU board card.In addition, the TCN network also comprises intelligent display unit (IDU) etc.Each MVB bus integrated circuit board and MVB one class integrated circuit board, an IDU couple together, and all WTB bus integrated circuit boards all are connected together.The topological structure of two joint locomotives, bottom integrated circuit board is digital quantity and analog quantity integrated circuit board, it gives MVB one class integrated circuit board with data, generates MVB data format message, is sent to other locomotives on the WTB bus by MVB bus integrated circuit board, CPU board card and WTB bus integrated circuit board then.Also be the integrated circuit board that the data of other locomotives is sent to the bottom conversely simultaneously.The data flow of whole system as mentioned above.Certainly, can also be with a lot of other equipment according to the requirement of locomotive, such as brake unit, compressor unit etc.
Claims (9)
1, a kind of TCN locomotive network control test platform, it is characterized in that comprising WTB integrated circuit board (1), MVB integrated circuit board (2), CPU board card (3), power supply integrated circuit board (4) and backboard (5), described WTB integrated circuit board (1), MVB integrated circuit board (2) and CPU board card (3) all are to be connected by the core bus on the backboard (5), provide T to make voltage and power supply integrated circuit board (4) is WTB integrated circuit board (1), MVB integrated circuit board (2) and CPU board card (3); Described WTB integrated circuit board (1) is responsible for the data acquisition and the transmission of train bus-line equipment; Described MVB integrated circuit board (2) is responsible for the data acquisition and the control of vehicle bus equipment; The central authorities that described CPU board card (3) is responsible for train bus-line and vehicle bus device data handle and generate ETHERNET, RS232 and RS485 monitor data stream.
2, TCN locomotive network control test platform according to claim 1, it is characterized in that described WTB bus integrated circuit board comprises WTB RAM Shared (10), MCU microcontroller (11), hdlc controller (12), fpga logic processor (13), WTB bus driver (14) and WTB isolating transformer (15), described device data stream is from core bus process WTB RAM Shared (10), be sent in the MCU microcontroller (11), by the signal encoding modulation of hdlc controller (12) and fpga logic processor (13), process WTB bus driver (14) and WTB isolating transformer (15) are sent to train bus-line and get on again; Described WTB bus integrated circuit board can also receive the transmission data on the train bus-line, passes back to after treatment on the core bus of backboard (5).
3, TCN locomotive network control test platform according to claim 1, it is characterized in that described MVB bus integrated circuit board comprises MVB RAM Shared (16), MVB protocol controller (17), MVB bus driver (18) and MVB isolating transformer (19), described device data stream allows through MVB protocol controller (17) from core bus, import MVB RAM Shared (16) into, read in then in the MVB protocol controller (17), by the Signal Spacing adjustment of MVB bus driver (18) and MVB isolating transformer (19), be sent to vehicle bus and get on again; Described MVB bus integrated circuit board can also receive the transmission data on the vehicle bus, passes back to after treatment on the core bus of backboard (5).
4, TCN locomotive network control test platform according to claim 1, it is characterized in that described cpu bus integrated circuit board comprises central processing unit (6), Ethernet protocol controller (7), RS232 protocol controller (8) and RS485 protocol controller (9), described central processing unit (6) transmits train bus-line and vehicle bus data flow respectively, core bus through backboard (5) imports WTB bus integrated circuit board (1) and MVB bus integrated circuit board (2) into, central processing unit (6) generates the data flow that is used for the rail vehicle diagnostic analysis with the data message of gathering simultaneously, from Ethernet, RS232 and the output of RS485 interface.
5, according to claim 1,2 described TCN locomotive network control test platforms, it is characterized in that described MCU microcontroller (11) will read WTB process data, message data or the monitoring data of RAM Shared (10) with inquiry mode, be sent to and form HDLC frame format data flow in the hdlc controller (12), to be normal data perhaps, write RAM Shared (10) from the parsing of the data stream of hdlc controller (12).
6, according to claim 1,2 described TCN locomotive network control test platforms, it is characterized in that signal that described hdlc controller (12) transmits MCU microcontroller (11) is converted into the HDLC data flow and send fpga logic processor (13) to form manchester encoded signals, perhaps will be converted into the HDLC data flow from the manchester encoded signals of fpga logic processor (13).
7, according to claim 1,2 described TCN locomotive network control test platforms, it is characterized in that described fpga logic processor (13) is the codec of WTB bus signals, to be converted into Manchester coded signal from the signal flow of hdlc controller (12), send into the WTB bus driver, perhaps will be converted into the HDLC data flow and be sent to hdlc controller (12) from Manchester coded signal of WTB bus driver.
8, according to claim 1,3 described TCN locomotive network control test platforms, it is characterized in that described MVB protocol controller (17) reads MVB process data, message data or the monitoring data of RAM Shared (16) with inquiry mode, be converted into Manchester coded signal, import into and form the standard electrical signal in the MVB bus driver (18), perhaps will be from Manchester coded signal of MVB bus driver (18), resolve to the standard signal data, write RAM Shared (16).
9, according to claim 1 described TCN locomotive network control test platform, the core bus structure that it is characterized in that described backboard (5) organically is combined into an integral body with various integrated circuit boards, and the power supply integrated circuit board adopts modularized design to be responsible for the power supply power supply of whole platform.
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| CN2007100114267A CN101083590B (en) | 2007-05-24 | 2007-05-24 | TCN railway engine network control experiment platform |
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| CN2007100114267A CN101083590B (en) | 2007-05-24 | 2007-05-24 | TCN railway engine network control experiment platform |
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