CN103043085A - Master control device and data transmission method - Google Patents
Master control device and data transmission method Download PDFInfo
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- CN103043085A CN103043085A CN2011103087840A CN201110308784A CN103043085A CN 103043085 A CN103043085 A CN 103043085A CN 2011103087840 A CN2011103087840 A CN 2011103087840A CN 201110308784 A CN201110308784 A CN 201110308784A CN 103043085 A CN103043085 A CN 103043085A
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Abstract
The invention provides a master control device and a data transmission method. The master control device comprises a Multifunction Vehicle Bus (MVB) printed circuit board, a central processing unit printed circuit board and an Ethernet printed circuit board, wherein the MVB printed circuit board is used for receiving first MVB data which are transmitted by a train communication network device, the central processing unit printed circuit board is connected to the MVB printed circuit board and is used for transmitting first MVB data to the Ethernet printed circuit board through an external device bus which is arranged between the central processing unit printed circuit board and the Ethernet printed circuit board, and the Ethernet printed circuit board is connected to the central processing unit printed circuit board and is used for converting first MVB data to isolated differential level signals and transmitting the isolated differential level signals to an Ethernet device. The master control device can process MVB data and Ethernet data and can meet the requirement of the simultaneous communication mode of the MVB and the Ethernet in a train communication network control system.
Description
Technical field
The present invention relates to the track traffic technical field, relate in particular to a kind of main control equipment and data transmission method.
Background technology
In recent years, fast development along with railway systems, fieldbus since high, the advantages such as cost is low, failure rate is low of its reliability so that its application is more and more extensive, as the network communication standard of Chinese Railway guideway vehicle, MVB (Multifunction Vehicle Bus; Hereinafter to be referred as: MVB) in the field of track traffic such as locomotive, motor-car and subway, be widely used.
The advantage of the aspects such as ethernet has that speed of transmission is high, energy consumption is low, high and support equipment easy for installation, compatible good, open is many.In recent years, along with the raising to performance index requirements of the development of network technology and industrial control field, ethernet just progressively enters industrial control field, has formed novel ethernet control technology, therefore existing TCN (Train Communication Network; Hereinafter to be referred as: the signalling methods that TCN) has occurred MVB and ethernet in the control system and deposited, this just requires the main control equipment of train can process the MVB data, can process Ethernet data again, but the main control equipment in the existing train can't accomplish both to have processed the MVB data, process again Ethernet data, can't satisfy MVB and ethernet in the TCN control system and the requirement of the signalling methods deposited.
Summary of the invention
The invention provides a kind of main control equipment and data transmission method, both can process the MVB data to realize main control equipment, Ethernet data be can process again, MVB and ethernet in the TCN control system satisfied and the requirement of the signalling methods deposited.
The invention provides a kind of main control equipment, comprising: MVB integrated circuit board, central processing unit integrated circuit board and ethernet integrated circuit board;
Described MVB integrated circuit board, be used for receiving the first MVB data that TCN equipment sends, and the external device bus that described the first MVB data communication device is crossed between described MVB integrated circuit board and the described central processing unit integrated circuit board sends to described central processing unit integrated circuit board, and sends to described TCN equipment after the described Ethernet data that described central processing unit integrated circuit board sends is converted to the second MVB data;
Described central processing unit integrated circuit board, be connected with described MVB integrated circuit board, the external device bus that is used for described the first MVB data communication device is crossed between described central processing unit integrated circuit board and the described ethernet integrated circuit board sends to described ethernet integrated circuit board, and the described Ethernet data that described ethernet integrated circuit board is sent sends to described MVB integrated circuit board by the external device bus between described MVB integrated circuit board and the described central processing unit integrated circuit board;
Described ethernet integrated circuit board, be connected with described central processing unit integrated circuit board, for sending to ethernet device after the differential level signal that described the first MVB data is converted to isolation, and receive the Ethernet data that described ethernet device sends, described Ethernet data is sent to described central processing unit integrated circuit board by the external device bus between described central processing unit integrated circuit board and the described ethernet integrated circuit board.
The present invention also provides a kind of data transmission method that aforesaid main control equipment is realized of using.
By the present invention, main control equipment receives after the first MVB data of TCN equipment transmission, and the differential level signal that above-mentioned the first MVB data can be converted to isolation sends to ethernet device afterwards; Receive after the Ethernet data of ethernet device transmission, above-mentioned Ethernet data can be converted to the second MVB data and send to TCN equipment; Thereby can realize that main control equipment can process the MVB data, can process Ethernet data again, and then can satisfy MVB and ethernet in the TCN control system and the requirement of the signalling methods deposited.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do one to the accompanying drawing of required use in embodiment or the description of the Prior Art and introduce simply, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of an embodiment of main control equipment of the present invention;
Fig. 2 is the structural representation of another embodiment of main control equipment of the present invention;
Fig. 3 is the diagram of circuit of an embodiment of data transmission method of the present invention.
The specific embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer, below in conjunction with the accompanying drawing in the embodiment of the invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
Fig. 1 is the structural representation of an embodiment of main control equipment of the present invention, and as shown in Figure 1, this main control equipment can comprise: MVB integrated circuit board 11, central processing unit integrated circuit board 12 and ethernet integrated circuit board 13;
Wherein, MVB integrated circuit board 11 be used for to receive the MVB data that TCN equipment sends, and an above-mentioned MVB data communication device is crossed external device (Peripheral Component between MVB integrated circuit board 11 and the central processing unit integrated circuit board 12; Hereinafter to be referred as: PC) bus sends to central processing unit integrated circuit board 12, and sends to TCN equipment after the Ethernet data that central processing unit integrated circuit board 12 sends is converted to the 2nd MVB data;
Central processing unit integrated circuit board 12, be connected with MVB integrated circuit board 11, the PC bus that is used for an above-mentioned MVB data communication device is crossed between central processing unit integrated circuit board 12 and the ethernet integrated circuit board 13 sends to ethernet integrated circuit board 13, and the Ethernet data that ethernet integrated circuit board 13 is sent sends to MVB integrated circuit board 11 by the PC bus between MVB integrated circuit board 11 and the central processing unit integrated circuit board 12;
Ethernet integrated circuit board 13, be connected with central processing unit integrated circuit board 12, for sending to ethernet device after the differential level signal that above-mentioned MVB data is converted to isolation, and receive the Ethernet data that ethernet device sends, above-mentioned Ethernet data is sent to central processing unit integrated circuit board 12 by the PC bus between central processing unit integrated circuit board 12 and the ethernet integrated circuit board 13.
In the present embodiment, the PC bus can be the PC104 bus, but the embodiment of the invention is not limited in this, and the embodiment of the invention is not construed as limiting this.
In the above-mentioned main control equipment, MVB integrated circuit board 11 receives after the MVB data of TCN equipment transmission, and the differential level signal that central processing unit integrated circuit board 12 can be converted to above-mentioned MVB data isolation sends to ethernet device afterwards; Ethernet integrated circuit board 13 receives after the Ethernet data of ethernet device transmission, above-mentioned Ethernet data can be converted to the 2nd MVB data and send to central processing unit integrated circuit board 12, send to MVB integrated circuit board 11 by central processing unit integrated circuit board 12, send to TCN equipment by MVB integrated circuit board 11 again; Thereby can realize that main control equipment can process the MVB data, can process Ethernet data again, and then can satisfy MVB bus and ethernet in the TCN control system and the requirement of the signalling methods deposited.
Fig. 2 is the structural representation of another embodiment of main control equipment of the present invention, compares with main control equipment shown in Figure 1, and difference is, in the main control equipment shown in Figure 2, MVB integrated circuit board 11 can comprise:
Above-mentioned MVB integrated circuit board 11 can also comprise: MVB protocol controller 112, be used for the MVB data that MVB interface 111 receives are carried out protocol conversion, so that above-mentioned MVB data are converted to the first data that are adapted at the PC bus transfer, and the PC bus that the first data communication device of the above-mentioned PC of being adapted at bus transfer is crossed between MVB integrated circuit board 11 and the central processing unit integrated circuit board 12 sends to central processing unit integrated circuit board 12; At this moment, central processing unit integrated circuit board 12, the concrete PC bus that is used for the first data communication device of the above-mentioned PC of being adapted at bus transfer is crossed between central processing unit integrated circuit board 12 and the ethernet integrated circuit board 13 sends to ethernet integrated circuit board 13.
In the present embodiment, ethernet integrated circuit board 13 can comprise: Ethernet protocol controller 131, isolating transformer 132 and ethernet physical layer interface 133;
Ethernet protocol controller 131 is used for the first data of the above-mentioned PC of being adapted at bus transfer are carried out protocol conversion, is converted to the first link layer message with the first data with the above-mentioned PC of being adapted at bus transfer;
Isolating transformer 132 is used for the first link layer message of Ethernet protocol controller 131 conversions is converted to the differential level signal of isolation;
Ethernet physical layer interface 133 is used for the differential level signal of the above-mentioned isolation of isolating transformer 132 conversions is sent to ethernet device.
Further, ethernet physical layer interface 133 can also receive the Ethernet data that ethernet device sends; Isolating transformer 132 can also be converted to the second link layer message with the Ethernet data that ethernet physical layer interface 133 receives; Ethernet protocol controller 131 can also carry out protocol conversion to the second link layer message, above-mentioned the second link layer message being converted to the second data that are adapted at the PC bus transfer, and the PC bus that the second data communication device of the above-mentioned PC of being adapted at bus transfer is crossed between central processing unit integrated circuit board 12 and the ethernet integrated circuit board 13 sends to central processing unit integrated circuit board 12; Central processing unit integrated circuit board 12 can also send to the MVB integrated circuit board with the PC bus that the second data communication device of the above-mentioned PC of being adapted at bus transfer is crossed between MVB integrated circuit board 11 and the central processing unit integrated circuit board 12.
Further, MVB protocol controller 112 can also carry out protocol conversion to the second data of the above-mentioned PC of being adapted at bus transfer, is converted to the second MVB data with the second data with the above-mentioned PC of being adapted at bus transfer; MVB interface 111 can also send to TCN equipment with the 2nd MVB data of above-mentioned MVB protocol controller 112 conversions.
The below is take the PC bus between MVB integrated circuit board 11 and the central processing unit integrated circuit board 12 as PC104 bus 14, and the PC bus between central processing unit integrated circuit board 12 and the ethernet integrated circuit board 13 is that PC104 bus 15 is example, and main control equipment shown in Figure 3 is further described.
In the present embodiment, MVB integrated circuit board 11 is connected by PC104 bus 14 with central processing unit integrated circuit board 12; MVB protocol controller 112 in the MVB integrated circuit board 11 is connected with MVB interface 111 by the two way communication mode.MVB integrated circuit board 11 is hardware platforms of operation MVB link software, and MVB integrated circuit board 11 is the MVB equipment network interface card of PC104 structure, and core adopts field programmable gate array (Field Programmable Gate Array; Hereinafter to be referred as: FPGA) chip.MVB protocol controller 112 is special chips of rolling stock level Design of Network Communication.MVB interface 111 forms (not shown among Fig. 3) by MVB transceiver and MVB adaptor union, and the MVB transceiver sends to the MVB network for the data that the MVB data sent to MVB protocol controller 112 and/or MVB protocol controller 112 is exported; The MVB adaptor union is used for the physical connection with the MVB network.
In the present embodiment, the central authorities that central processing unit integrated circuit board 12 is responsible for MVB data and Ethernet data process.Central processing unit integrated circuit board 12 in the present embodiment adopts AMD LX700/800CPU, has following features:
1, at plate AMD Geode LX CPU, dominant frequency 433/500/600MHz, acquiescence 500MHz;
2, support a 10/100Mbps RJ-45 interface;
3, C-R-tube (Cathode Ray Tube on the plate; Hereinafter to be referred as: CRT)/Liquid Crystal Display (Liquid Crystal Display; Hereinafter to be referred as: LCD) display interface, and can support Low Voltage Differential Signal (Low-Voltage Differential Signaling; Hereinafter to be referred as: LVDS) read-out;
4, the plate of standard carries 32M/64M/128M byte (Bytes) Double Data Rate synchronous DRAM (Double Data Rate Synchronous Dynamic Random Access Memory; Hereinafter to be referred as: DDR SDRAM);
5, low-power consumption central processing unit (Central Processing Unit; Hereinafter to be referred as: CPU), need not fan in 0～60 ℃ of operating range;
6, on the plate integrated 5 strings 1 also, the 4 tunnel support RS485/RS232 and external RS485 module for power supply+5V, configurable according to the actual requirements;
7, plate carries DOC and CF card electric board interface, 4 USB 2.0 (Universal Serial Bus 2.0; Hereinafter to be referred as: USB2.0) interface, a keyboard/mouse interface.
In the present embodiment, ethernet integrated circuit board 13 is connected by PC104 bus 15 with central processing unit integrated circuit board 12.
Particularly, in the present embodiment, MVB integrated circuit board 11 receives the MVB data that TCN equipment sends by MVB interface 111,112 pairs of above-mentioned MVB data of MVB protocol controller are carried out protocol conversion, be adapted at the first data that PC104 bus 14 is transmitted so that above-mentioned MVB data are converted to, and by PC104 bus 14 above-mentioned the first data sent to central processing unit integrated circuit board 12; Ethernet integrated circuit board 13 can receive above-mentioned the first data by PC104 bus 15, Ethernet protocol controller 131 in the ethernet integrated circuit board 13 can be converted to the first link layer message with above-mentioned the first data, be converted to the differential level signal of isolation by isolating transformer 132, send to ethernet device through ethernet physical layer interface 133.
Further, ethernet integrated circuit board 13 can also receive the Ethernet data that ethernet device sends by ethernet physical layer interface 133, after isolating transformer 132 and 131 processing of Ethernet protocol controller, be converted to the second data that are adapted at the PC bus transfer, and above-mentioned the second data transmission is sent to central processing unit integrated circuit board 12 by PC104 bus 15.Like this, MVB integrated circuit board 11 can also receive above-mentioned the second data that central processing unit integrated circuit board 12 sends, and after MVB protocol controller 112 is converted to the second MVB data with above-mentioned the second data, sends to TCN equipment by MVB interface 111.
Above-mentioned main control equipment can be processed the MVB data, can process Ethernet data again, and then can satisfy MVB bus and ethernet in the TCN control system and the requirement of the signalling methods deposited.
The embodiment of the invention also provides a kind of data transmission method that Fig. 1 of the present invention or main control equipment shown in Figure 2 are realized of using.
Fig. 3 is the diagram of circuit of an embodiment of data transmission method of the present invention, and as shown in Figure 3, this data transmission method can comprise:
Step 301, main control equipment receives the MVB data that TCN equipment sends, and the differential level signal that MVB data is converted to isolation sends to ethernet device afterwards.
Particularly, main control equipment can receive the MVB data that TCN equipment sends by the MVB interface.Then, main control equipment can carry out protocol conversion to above-mentioned MVB data, so that above-mentioned MVB data are converted to the first data that are adapted at the PC bus transfer; Next, main control equipment carries out protocol conversion to the first data of the above-mentioned PC of being adapted at bus transfer, be converted to the first link layer message with the first data with the above-mentioned PC of being adapted at bus transfer, at last above-mentioned the first link layer message be converted to the differential level signal of isolation.
Step 302, main control equipment receive the Ethernet data that above-mentioned ethernet device sends, and above-mentioned Ethernet data is converted to the 2nd MVB data sends to TCN equipment afterwards.
Particularly, main control equipment can be converted to the second link layer message with above-mentioned Ethernet data, and above-mentioned the second link layer message is carried out protocol conversion, above-mentioned the second link layer message is converted to the second data that are adapted at the PC bus transfer; Then, main control equipment can carry out protocol conversion to the second data of the above-mentioned PC of being adapted at bus transfer, is converted to the second MVB data with the second data with the above-mentioned PC of being adapted at bus transfer.
Above-mentioned steps 301 can successively be carried out with step 302, also can executed in parallel, and the embodiment of the invention is not construed as limiting the execution sequence of step 301 with step 302, but Fig. 3 is with first execution in step 301, and rear execution in step 302 illustrates for example.
In the present embodiment, the PC bus can be the PC104 bus, but the embodiment of the invention is not limited in this, and the embodiment of the invention is not construed as limiting this.
In above-described embodiment, main control equipment receives after the MVB data of TCN equipment transmission, and the differential level signal that above-mentioned MVB data can be converted to isolation sends to ethernet device afterwards; Receive after the Ethernet data of ethernet device transmission, above-mentioned Ethernet data can be converted to the 2nd MVB data and send to TCN equipment; Thereby can realize that main control equipment can process the MVB data, can process Ethernet data again, and then can satisfy MVB bus and ethernet in the TCN control system and the requirement of the signalling methods deposited.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be finished by the relevant hardware of programmed instruction, aforesaid program can be stored in the computer read/write memory medium, this program is carried out the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: the various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
When the equipment interface on the train is Ethernet interface and MVB interface and when depositing, the data transmission method that the embodiment of the invention provides and main control equipment can be finished data transfer and processing, saved the cost of network switch, and the requirement of the signalling methods that can satisfy MVB bus and ethernet in the TCN control system and deposit, and then can satisfy the requirement of networking flexibility.Service personnel increased Ethernet on standard TCN/MVB communication network basis, so that can by a data terminal or the Ethernet interface that portable personal carries, be accessed the data on the TCN easily.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, the module in the accompanying drawing or flow process might not be that enforcement the present invention is necessary.
It will be appreciated by those skilled in the art that the module in the device among the embodiment can be distributed in the device of embodiment according to the embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from the present embodiment.The module of above-described embodiment can be merged into a module, also can further split into a plurality of submodules.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the scope of various embodiments of the present invention technical scheme.
Claims (7)
1. a main control equipment is characterized in that, comprising: MVB integrated circuit board, central processing unit integrated circuit board and ethernet integrated circuit board;
Described MVB integrated circuit board, be used for receiving the first MVB data that TCN equipment sends, and the external device bus that described the first MVB data communication device is crossed between described MVB integrated circuit board and the described central processing unit integrated circuit board sends to described central processing unit integrated circuit board, and sends to described TCN equipment after the described Ethernet data that described central processing unit integrated circuit board sends is converted to the second MVB data;
Described central processing unit integrated circuit board, be connected with described MVB integrated circuit board, the external device bus that is used for described the first MVB data communication device is crossed between described central processing unit integrated circuit board and the described ethernet integrated circuit board sends to described ethernet integrated circuit board, and the described Ethernet data that described ethernet integrated circuit board is sent sends to described MVB integrated circuit board by the external device bus between described MVB integrated circuit board and the described central processing unit integrated circuit board;
Described ethernet integrated circuit board, be connected with described central processing unit integrated circuit board, for sending to ethernet device after the differential level signal that described the first MVB data is converted to isolation, and receive the Ethernet data that described ethernet device sends, described Ethernet data is sent to described central processing unit integrated circuit board by the external device bus between described central processing unit integrated circuit board and the described ethernet integrated circuit board.
2. main control equipment according to claim 1 is characterized in that, described MVB integrated circuit board comprises:
The MVB interface is used for receiving the first MVB data that TCN equipment sends.
3. main control equipment according to claim 2 is characterized in that, described MVB integrated circuit board also comprises: the MVB protocol controller;
Described MVB protocol controller, be used for described the first MVB data that described MVB interface receives are carried out protocol conversion, so that described the first MVB data are converted to the first data that are adapted at the external device bus transfer, and the external device bus that described the first data communication device that is adapted at the external device bus transfer is crossed between described MVB integrated circuit board and the described central processing unit integrated circuit board sends to described central processing unit integrated circuit board;
Described central processing unit integrated circuit board, the concrete external device bus that is used for described the first data communication device that is adapted at the external device bus transfer is crossed between described central processing unit integrated circuit board and the described ethernet integrated circuit board sends to described ethernet integrated circuit board.
4. main control equipment according to claim 3 is characterized in that, described ethernet integrated circuit board comprises:
The Ethernet protocol controller is used for described the first data that are adapted at the external device bus transfer are carried out protocol conversion, so that described the first data that are adapted at the external device bus transfer are converted to the first link layer message;
Isolating transformer is used for the first link layer message of described Ethernet protocol controller conversion is converted to the differential level signal of isolation;
The ethernet physical layer interface is used for the differential level signal of the described isolation of described isolating transformer conversion is sent to ethernet device.
5. main control equipment according to claim 4 is characterized in that,
Described ethernet physical layer interface also is used for receiving the Ethernet data that described ethernet device sends;
Described isolating transformer also is used for the Ethernet data that described ethernet physical layer interface receives is converted to the second link layer message;
Described Ethernet protocol controller, also be used for described the second link layer message is carried out protocol conversion, described the second link layer message being converted to the second data that are adapted at the external device bus transfer, and the external device bus that described the second data communication device that is adapted at the external device bus transfer is crossed between described central processing unit integrated circuit board and the described ethernet integrated circuit board sends to described central processing unit integrated circuit board;
Described central processing unit integrated circuit board, the external device bus that also is used for described the second data communication device that is adapted at the external device bus transfer is crossed between described MVB integrated circuit board and the described central processing unit integrated circuit board sends to described MVB integrated circuit board.
6. main control equipment according to claim 5 is characterized in that,
Described MVB protocol controller, also be used for described the second data that are adapted at the external device bus transfer are carried out protocol conversion, so that described the second data that are adapted at the external device bus transfer are converted to described the second MVB data;
Described MVB interface also is used for the described second MVB data of described MVB protocol controller conversion are sent to described TCN equipment.
7. an application rights requires the data transmission method that the described main control equipment of 1-6 any one is realized.
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| CN104890703A (en) * | 2015-06-29 | 2015-09-09 | 青岛四方车辆研究所有限公司 | Motor train unit central control unit multithread processing method |
| CN107241250A (en) * | 2017-05-22 | 2017-10-10 | 中车大连电力牵引研发中心有限公司 | The processing method of rail vehicle and data transfer |
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| CN112822079A (en) * | 2019-11-15 | 2021-05-18 | 中车株洲电力机车研究所有限公司 | Train communication network and communication method |
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| CN109428838A (en) * | 2017-08-22 | 2019-03-05 | 中车株洲电力机车研究所有限公司 | A kind of method and system of train CCU central control unit load sharing |
| CN109428838B (en) * | 2017-08-22 | 2022-08-30 | 中车株洲电力机车研究所有限公司 | Method and system for load sharing of train CCU central control unit |
| RU2684348C1 (en) * | 2017-12-13 | 2019-04-08 | СиАрАрСи ЧАНЧУНЬ РЭЙЛВЭЙ ВИИКЛЗ КО., ЛТД. | Method, system and apparatus for treating two control unit trains |
| CN112822079A (en) * | 2019-11-15 | 2021-05-18 | 中车株洲电力机车研究所有限公司 | Train communication network and communication method |
| WO2021169010A1 (en) * | 2020-02-24 | 2021-09-02 | 中车唐山机车车辆有限公司 | Safety monitoring system and high-speed multiple-unit train |
| CN113002591A (en) * | 2021-04-13 | 2021-06-22 | 株洲中车时代电气股份有限公司 | Hybrid train network and train comprising same |
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