CN201813386U

CN201813386U - MVB (multifunction vehicle bus) data recording unit for locomotive

Info

Publication number: CN201813386U
Application number: CN2010205409587U
Authority: CN
Inventors: 李砾工; 吴涛
Original assignee: CNR Dalian Electric Traction R& D Center Co Ltd
Current assignee: CRRC Dalian R&D Co Ltd
Priority date: 2010-09-21
Filing date: 2010-09-21
Publication date: 2011-04-27
Anticipated expiration: 2020-09-21

Abstract

The utility model discloses an MVB (multifunction vehicle bus) data recording unit for a locomotive, which comprises an MVB protocol controller, an MVB bus transceiver and an MVB photoelectric isolator. The MVB protocol controller is in two-way connection with a high-speed single-chip microcomputer and a PC104 bus interface in sequence through an internal bus, the PC104 bus interface is in two-way connection with a PC104 bus of a PC104X86 interface card through an internal bus, and a PC104 output end of the PC104X86 interface card is connected with an input end of a data storage unit. The high-speed single-chip microcomputer controls the working time sequence of the MVB protocol controller and the generation of PC104 data flow, and the C104X86 interface card processes the data and transmits the data to the data storage unit for storage and recording. The MVB data recording unit for the locomotive has the advantages of high reliability, high flexibility, high versatility, low cost and the like.

Description

A kind of MVB data record unit that is used for locomotive

Technical field

The utility model relates to a kind of network control unit of the rolling stock based on the MVB network technology, relates in particular to a kind of MVB data record unit that is used for locomotive.

Background technology

The MVB network is a kind of network of rolling stock bus design that is specially, become at present a kind of abroad with the high reliability fieldbus networks of domestic a large amount of uses, be an important component part of IEC61375-3 standard, but because strongly professional, external interface also not convenient especially.

Data logger is extensive use data memory device gradually on the present rolling stock, generally is placed in the drivers' cab, and the personnel that maintain easily download and analyze data.Behind vehicle Hui Ku, the attendant can the fault of downloaded stored on data logger and the file of vehicle operating, and is undertaken the ruuning situation of car load is done relevant judgement and analysis by relevant upper computer analyzing software.

Though the data record unit structure of each manufacturer production is different, all follows the principle that makes things convenient for installation and maintenance, makes things convenient for data download to analyze.But, because the particular utility of rolling stock, a lot of core technologies is abroad monopolized, and causes external data logger price very expensive.And, all can not meet consumers' demand fully on the external data logger 26S Proteasome Structure and Function, a lot of users' demand is a lot, needs the Scalable Performance of record cell, need change data record cell interface, abroad producer never satisfies user's demand.Therefore, it is low, practical to invent a kind of price, and the used for rolling stock data record unit of perfect in shape and function is very necessary.

Summary of the invention

For solving the problems referred to above that prior art exists, the utility model will design low, the practical MVB data record unit that is used for locomotive of a kind of price.

To achieve these goals, the technical solution of the utility model is as follows:

A kind of MVB data record unit that is used for locomotive, comprise MVB protocol controller, MVB bus transceiver and MVB photoisolator, described MVB protocol controller by internal bus successively with MVB bus transceiver, MVB photoisolator with the MVB bus is two-way is connected; Described MVB protocol controller also by internal bus successively with high-speed microprocessor, the PC104 bus interface is two-way is connected, described PC104 bus interface is connected by internal bus is two-way with the PC104 bus of PC104X86 interface card, and the PC104 output of described PC104X86 interface card is connected with the input of data storage cell; Described high-speed microprocessor is the C8051F040 processor, the PC104CPU integrated circuit board that described PC104X86 interface card is x86.

Compared with prior art, the utlity model has following beneficial effect:

1, because the PC104 communication modes that the utility model adopts is one of present widely used communication modes, have that interface is simple, cheap, debugging is convenient, dependable performance and on traffic rate fully and advantage such as MVB network coupling.Particularly in fields such as rolling stock, power plant, have characteristics such as real-time height, response time of data record be fast, PC104 bus and MVB bussing technique are combined, the MVB data flow of special use is transformed to general PC104 bus data.The PC104X86 interface card is widely used at industrial control field, and its scalability is strong, and is very convenient to the expansion of data memory cell, and supports the access of interfaces such as keyboard, display screen and mouse, made things convenient for the debugging of system.The utility model combines the MVB bus mechanism of rolling stock domain-specific with the PC104X86 interface card on extensive application basis and relevant data storage cell, createed a kind of novel data record unit based on the MVB interface, popularization for the data record unit of realizing rolling stock has crucial meaning, has reliability, flexibility, versatility, low cost and other advantages.

2, because the PC104X86 interface card that the utility model adopts has very strong scalability, can carry out the function expansion of data record unit according to different requirements of customers, specifically the function that can realize comprises: the first, can carry out the capacity extension of data storage cell according to the data volume characteristics of user's data communication; The second, can carry out reinforcing according to the security performance class requirement that the user stores data to storage area; The 3rd, can require carry out the expansion of data collecting card to the collection of some special data according to the user, need gather 2 way word input variables such as the client, data record unit can be according to the acquisition interface card of client's requirements extend digital quantity input.If the client needs 2 tunnel rate signal collection and record, data record unit can be according to the acquisition interface card of client's requirements extend analog quantity.The function of the required realization of the utility model becomes a part of locomotive system, makes the manufacturer that does not possess MVB bus research and development ability is unfamiliar with in the locomotive field, can push the product of oneself to Railway Market fast.So the utility model is very suitable for extensively promoting in the application of rolling stock.

Description of drawings

The utility model is 1 of drawings attached only, wherein:

Fig. 1 is the structure principle chart that is used for the MVB data record unit of locomotive.

Among the figure: 1, high-speed microprocessor, 2, the MVB protocol controller, 3, the MVB bus transceiver, 4, the MVB photoisolator, 5, the PC104 bus interface, 6, the PC104X86 interface card, 7, data storage cell.

Embodiment

Below in conjunction with accompanying drawing the utility model is described further.As shown in Figure 1, a kind of MVB data record unit that is used for locomotive, comprise MVB protocol controller 2, MVB bus transceiver 3 and MVB photoisolator 4, described MVB protocol controller 2 by internal bus successively with MVB bus transceiver 3, MVB photoisolator 4 with the MVB bus is two-way is connected; Described MVB protocol controller 2 also by internal bus successively with high-speed microprocessor 1,5 two-way connections of PC104 bus interface, described PC104 bus interface 5 is connected by internal bus is two-way with the PC104 bus of PC104X86 interface card, and the PC104 output of described PC104X86 interface card is connected with the input of data storage cell 7; Described high-speed microprocessor 1 is the C8051F040 processor, the PC104CPU integrated circuit board that described PC104X86 interface card 6 is x86.

Method of work of the present utility model may further comprise the steps:

The digital signal that A, MVB bus transceiver 3 are sent MVB protocol controller 2 here converts Manchester signal to, send through MVB photoisolator 4, perhaps Manchester network signal that MVB photoisolator 4 is sent here is decoded as digital signal, sends into MVB protocol controller 2;

The data flow that variable MPC that B, MVB protocol controller 2 will transmit high-speed microprocessor 1 or message MSG are packaged into the MVB network protocol specifies is delivered to MVB bus transceiver 3 or the signal resolution that MVB bus transceiver 3 is sent here become normal data and is stored;

C, high-speed microprocessor 1 are responsible for the work schedule of control MVB protocol controller 2 and the generation of PC104 data flow, and the control of responsible monitoring voltage, dongle and/or working power;

D, PC104 bus interface 5 are external interface circuit of PC104 bus, it is demodulated to the external bus signal data flow of PC104 bus, send data to high-speed microprocessor 1 and carry out data processing, and the PC104 signal of its generation is delivered to PC104 bus interface 5 generate the signal that meets the PC104 bus communication and communicate by letter with PC104X86 interface card 6, PC104X86 interface card 6 is stored and record transferring to data storage cell 7 after the data processing.

Below method of work of the present utility model is further described:

PC104 bus interface 5 is connected on the high-speed microprocessor 1 by internal bus, finish the communication of high-speed microprocessor 1 with each equipment on the PC104 bus, the structure of MVB bus transceiver 3 is made up of unit of function circuit, the digital signal that it sends MVB protocol controller 2 here converts Manchester signal to, send through MVB photoisolator 4, perhaps Manchester network signal that MVB photoisolator 4 is sent here is decoded as digital signal, sends in the MVB protocol controller 2.MVB protocol controller 2 is responsible for that data flow that variable MPC that high-speed microprocessor 1 will be transmitted or message MSG be packaged into the MVB network protocol specifies is delivered to MVB bus transceiver 3 or the signal resolution that MVB bus transceiver 3 is sent here is become normal data and deposit self buffer area in, cause interrupt request singal thereupon, read for high-speed microprocessor 1.High-speed microprocessor 1 is responsible for the work schedule of control MVB protocol controller 2 and the generation of PC104 data flow, and the control of monitoring voltage, dongle and/or working power.PC104 bus interface 5 is interface circuits of PC104 bus and PC104X86 interface card, and it is demodulated to the data flow of PC104 controller with outer MVB bus signals, handles the data record of the line correlation of going forward side by side for PC104X86 interface card 6 and data storage cell 7.MVB bus transceiver 3 and MVB photoisolator 4 are two groups, and wherein one group is connected on the MVB redundant bus as redundant interface.Described each intermodule is by the internal bus two-way communication.

At present, all subway light rails and rolling stock all have data record unit, but, because the specificity of MVB bus, a lot of producers can not provide the data record unit with MVB interface, and this technology abroad monopolized always, and the utility model is based on the technology of independent development, the bussing technique of rolling stock special use and the special technology of industrial control field are mutually combined, and the MVB data record unit of the rolling stock special use of developing has application value widely.

The above; it only is the preferable embodiment of the utility model; but protection range of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; be equal to replacement or change according to the technical solution of the utility model and inventive concept thereof, all should be encompassed within the protection range of the present utility model.

Claims

1. MVB data record unit that is used for locomotive, comprise MVB protocol controller (2), MVB bus transceiver (3) and MVB photoisolator (4), described MVB protocol controller (2) is connected with the MVB bus is two-way with MVB bus transceiver (3), MVB photoisolator (4) successively by internal bus; It is characterized in that: described MVB protocol controller (2) also by internal bus successively with high-speed microprocessor (1), the two-way connection of PC104 bus interface (5), described PC104 bus interface (5) is connected by internal bus is two-way with the PC104 bus of PC104X86 interface card, and the PC104 output of described PC104X86 interface card is connected with the input of data storage cell (7); Described high-speed microprocessor (1) is the C8051F040 processor, and described PC104X86 interface card (6) is the PC104CPU integrated circuit board of x86.