CN103580971B - MVB countermeasure set - Google Patents
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- CN103580971B CN103580971B CN201210264425.4A CN201210264425A CN103580971B CN 103580971 B CN103580971 B CN 103580971B CN 201210264425 A CN201210264425 A CN 201210264425A CN 103580971 B CN103580971 B CN 103580971B
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Abstract
The present invention provides a kind of MVB countermeasure set, and this countermeasure set includes bus monitoring unit, parameter setting unit, control unit and signal condition unit, and wherein, parameter setting unit is connected with control unit；Control unit is connected with bus monitoring unit；Signal condition unit is connected with control unit.This countermeasure set can produce the signal that MVB produces interference for the transmission line simulating other electric/electronic devices on train when transmitting signal, and export to MVB, with test MVB when there is interference signal, reliability of operation and stability.
Description
Technical field
The present invention relates to communication technology, particularly relate to a kind of MVB countermeasure set.
Background technology
TCN (Train Communication Network, be called for short TCN), is on train between each compartment
And between each various mobile unit of interior, transmit control signal, the communication network of the detection various data such as information, diagnostic message
Network.
Many countries the most successfully develop the TCN system differed from one another in the world, for realizing the world of vehicle-mounted data communication
Standard, International Electrotechnical Commission has passed through a TCN application specific standard, i.e. IEC61375-1 TCN standard.Should
TCN is divided into each joint of connection by standard and can dynamically organize into groups the wired train bus (Wire Train Bus is called for short WTB) in compartment
In system and connection compartment, (Multifunction Vehicle Bus is called for short the MVB of various mobile units
MVB) system.
The exploitation of MVB system is under the framework meeting IEC61375-1 protocol definition, to the multiple joints related in system
Data exchange process between point device is controlled, and relates to demand and response that data are exchanged by each node device itself,
System structure is complicated, and when completing to be installed on train by MVB system constructing, each node device needs to be transmitted by MVB
Various data, and, owing to being provided with the transmission line of other electric/electronic device on train, other electric/electronic devices lead to
When crossing transmission line transmission signal, MVB can be produced interference, accordingly, it would be desirable to a kind of countermeasure set, be used for simulating MVB total
Line interference signal under actual application environment, to test under MVB existence interference RST, reliability of operation is with steady
Qualitative.
Summary of the invention
The invention provides a kind of MVB countermeasure set, to simulate MVB under actual application environment
Interference signal, test MVB exist interference RST under, reliability of operation and stability.
This MVB countermeasure set, including:
Bus monitoring unit, obtains the transmission data in MVB, and resolves described transmission data in real time
To obtain the data terminal slogan that in residing transmission data, each frame data are corresponding, when the data that the frame data judging to know transmission are corresponding
When port numbers is identical with preset data port numbers, generate interference commencing signal；
Parameter setting unit, is connected with control unit, is used for arranging interference parameter；
Control unit, is connected with described bus monitoring unit, for when receiving described interference commencing signal, according to institute
State interference parameter and generate interference signal；
Signal condition unit, is connected with described control unit, exports to MVB after nursing one's health described interference signal
Bus.
The MVB countermeasure set that the present invention provides, can produce other electric and electronics for simulating on train
The transmission line of equipment produces the signal of interference when transmitting signal to MVB, and exports to MVB, to test MVB
Bus exist interference signal time, reliability of operation and stability, in order to developer and tester understand MVB
System ruuning situation under actual application environment, contributes to developer and is optimized for existing MVB system, enter
And improve MVB system reliability of operation and stability.
Accompanying drawing explanation
The structural representation of the MVB countermeasure set that Fig. 1 is provided by inventive embodiments；
The structural representation of the MVB countermeasure set that Fig. 2 is provided by inventing another embodiment；
The structural representation of the MVB countermeasure set that Fig. 3 is provided by the another embodiment of invention.
Detailed description of the invention
TCN is a kind of communication network being applied on train, the train communication passed through according to International Electrotechnical Commission
Network-specific standard, i.e. IEC61375-1 TCN standard, TCN is divided into connect each joint can dynamically organize into groups compartment WTB system and
The MVB system of various mobile units in connection compartment.
MVB is the important component part of TCN system, various mobile units in being used for connecting compartment, when by TCN system
When structure completes to be installed on train, each node device needs to transmit various data by MVB, and, due on train
It is provided with the transmission line of other electric/electronic device, when other electric/electronic devices are by transmission line transmission signal, meeting
MVB is produced interference, and the countermeasure set that the present embodiment provides can be used for simulating MVB doing under actual application environment
Disturb signal, to test under MVB existence interference RST, reliability of operation and stability.
The structural representation of the MVB countermeasure set that Fig. 1 is provided by inventive embodiments, as it is shown in figure 1,
This countermeasure set includes bus monitoring unit 10, parameter setting unit 11, control unit 12 and signal condition unit 13.
Bus monitoring unit 10, obtains the transmission data in MVB, and solves described transmission data in real time
Analyse to obtain the data terminal slogan that in residing transmission data, each frame data are corresponding, when the number that the frame data judging to know transmission are corresponding
According to port numbers identical with preset data port numbers time, generate interference commencing signal.
Being provided with multiple port in MVB, be connected with node device by each port, each node device is by correspondence
Port is to MVB transmitting data, and MVB is a kind of serial data communications busses, and when transmitting data, data are frames
One frame in bus transmission, these data are binary-coded data, and every frame data include multiple data bit, every frame data
In data bit include identifying the address bit of each equipment, verification sequence position and logic port address bit etc., when data communication, connect
By logic port address bit, the equipment receiving data can judge these frame data come from which port in MVB.
Data terminal slogan in the present embodiment can be the code clerk corresponding with the logical address bit in data, preset data end
Slogan is data terminal slogan set in advance, and this preset data port numbers is corresponding, namely with the port arranged in MVB
Can determine whether that the frame data of transmission are from which port concrete in MVB, this preset data end by preset data port numbers
Slogan can set one, it is also possible to sets multiple, a port in each preset data port numbers correspondence MVB.
Bus monitoring unit is used for being connected with MVB, the transmission in acquisition MVB that bus monitoring unit can be real-time
Data, when a certain moment is through the parsing to MVB transmitting data, it is judged that the FPDP that now these frame data are corresponding
Time number identical with default port data number, then generate interference commencing signal, and this interference commencing signal be sent to control unit,
The most now start in MVB, apply interference signal.
Owing to preset data port numbers is corresponding with the port in MVB, i.e. data terminal slogan can represent transmission data
From in which kind of port, therefore, when the data terminal slogan that the frame data of transmission are corresponding is identical with default port numbers, it is, work as
Transmit a certain of these frame data in MVB or time certain port the most transmits data, start to apply in MVB dry
Disturb signal, i.e. when being provided with this port in MVB, in the case of there is interference signal, to MVB reliability of operation
Test with stability, if apply interference signal after, find MVB transmit data time occur loss of data or other
Faults etc., illustrate that concrete condition can be taked to arrange accordingly by MVB fluctuation of service, related development personnel or tester's pin
Execute.
Parameter setting unit 11, is connected with control unit 12, is used for arranging interference parameter.
Control unit 12, is connected with described bus monitoring unit 10, is used for when receiving described interference commencing signal, root
Interference signal is generated according to described interference parameter.
Control unit can be to be the processor etc. of computer or other forms, and parameter setting unit can be and control unit
The data input device interacted, such as, by data input devices such as keyboard, mouse or touch-control tablets to computer
Operation interface arranges interference parameter.
This interference parameter mainly includes interference type, interference voltage, interfering frequency, damping parameter, interference application time, does
Disturbing port numbers, interference signal source end resistance etc., control unit generates interference signal according to this interference parameter, and interference signal is simulation
The transmission line of other electric/electronic devices on train produces the signal of interference, this signal when transmitting signal to MVB
Usually certain amplitude, width and the pulse signal of frequency.Control unit generates interference signal according to the interference parameter arranged, dry
Disturbing parameter difference, the interference amplitude of signal, width and the frequency of generation are the most different, and this interference signal can be one individually to be done
Disturb pulse, it is also possible to for a series of disturbing pulse, in MVB, namely apply interference signal continuously.
Signal condition unit 13, is connected with described control unit 12, exports after nursing one's health described interference signal
To MVB.
Signal condition unit can be realized by relevant hardware circuit, is used for being serially connected with MVB, and effect is to control
The interference signal that unit produces exports to MVB after further nursing one's health again, and such as, is amplified interference signal,
And the further conditioning such as the noise in filtering interference signals, preferably disturb signal obtaining quality.
As shown from the above technical solution, the MVB countermeasure set that the present embodiment provides, can produce for mould
The transmission line intending other electric/electronic devices on train produces the signal of interference when transmitting signal to MVB, and defeated
Go out to MVB, with test MVB exist interference signal time, reliability of operation and stability, in order to exploit person
Member and tester understand MVB system ruuning situation under actual application environment, contribute to developer for existing
MVB system be optimized, and then improve MVB system reliability of operation and stability.
On the basis of above-described embodiment, further, this countermeasure set also can further include two to extrapolation
Part, each described to being provided with external communication interface on outer plugin, each described to outer plugin respectively with described signal condition unit
It is connected, and each described to being additionally provided with on outer plugin for the interference signal exported through described signal condition unit is exported respectively
External communication interface to MVB.
The present embodiment arranges the effect to outer plugin, is on the one hand conveniently to be serially connected with on MVB by signal condition unit, another
Aspect is, generally uses the transmission means of featuring diplonema redundancy due to MVB, and namely MVB generally includes two groups of transmission lines
Road, two groups of outlet lines transmit identical data simultaneously, when one group of transmission line transmits data failure, another transmission lines
Can ensure that continuous print data communication, it is to avoid the situation of single wire transmission corrupt data, therefore, in the present embodiment, arrange two right
Outer plugin, the external communication interface of two external grafting is connected for corresponding with two groups of outlet lines in MVB, disturbs signal
By can be exported to MVB by each pair of outer plugin after signal condition unit simultaneously, with to two groups of transmission in MVB
Circuit applies to disturb signal simultaneously.
The structural representation of the MVB countermeasure set that Fig. 2 is provided by inventing another embodiment, such as Fig. 2 institute
Show, this countermeasure set also including, impedance matching control unit 14, described signal condition unit include operational amplifier U1With every
From transformator T1。
Described operational amplifier U1Inverting input be connected with described control unit 12, the homophase of described operational amplifier
Input end grounding, exports after the power amplification of described interference signal is set multiple；
Described isolating transformer T1Including first input end D1, the second input D2, the first outfan D3With the second outfan
D4, it is used for described control unit 12 and MVB electrical isolation, wherein,
Described operational amplifier U1Outfan and described first input end D1It is connected, described second input D2Ground connection；
Described first outfan D3By the first transmission line for being connected with MVB, described second outfan D4Pass through
Second transmission line is for being connected with MVB, and is in series with the first adjustable resistance R in described first transmission line1, described
Two transmission lines are in series with the second adjustable resistance R2；And it is parallel with between described first transmission line and the second transmission line
Three adjustable resistance R3With tunable capacitor C1；
Impedance matching control unit 14, respectively with described parameter setting unit 11, described first adjustable resistance R1, described
Two adjustable resistance R2, described 3rd adjustable resistance R3With described tunable capacitor C1It is connected, for generating resistance according to described interference parameter
Anti-regulation signal, to control to adjust described first adjustable resistance R1, the second adjustable resistance R2, the 3rd adjustable resistance R3The electricity of output
Resistance and tunable capacitor C1The capacitance of output.
The interference signal that control unit generates is usually lower-powered signal, and disturbs signal usual in transmitting procedure
There is decay, can make interference signal weakening after decay, therefore impact exports the interference signal quality to MVB, Jin Erying
Ring the test effect to MVB, to this end, in the present embodiment, the power of interference signal is amplified by operational amplifier,
The multiple that sets of this amplification namely runs the amplification of amplifier, can arrange according to actual needs, put by arranging computing
Relevant parameter in big device circuit can arrange this amplification.
The effect of isolating transformer be the equipment making to be positioned at transformer inputs be positioned at the equipment of its outfan electrically every
From, namely by control unit and MVB electrical isolation, the interference signal that control unit produces is coupled by isolating transformer
In MVB, it is to avoid there is electromagnetic interference between interference signal and the data signal transmitted in MVB, improve MVB total
The reliability of line transmission data, and, the iron core of isolating transformer has bigger high-frequency loss, it is also possible to suppression MVB
On the incoming control unit of high frequency spurs signal, it is ensured that control unit reliability service.
The first above-mentioned adjustable resistance and the effect of the second adjustable resistance are to limit signal condition element circuit output electric current
Size, the effect of the 3rd adjustable resistance and tunable capacitor be change this signal condition element circuit impedance, make this circuit
Impedance and the matches impedances in MVB.
Impedance matching control unit can generate impedance regulation signal according to interference parameter, can control to adjust by this regulation signal
Save above-mentioned first adjustable resistance, the second adjustable resistance, the resistance value of the 3rd adjustable resistance output and the electric capacity of tunable capacitor output
Value.
First adjustable resistance, the second adjustable resistance and the 3rd adjustable resistance can be digital regulation resistance, are a kind of utilization numerals
The device of its resistance value of signal change, digital regulation resistance can be adjustable according to the resistance value of impedance regulation its output of signal change
Electric capacity can be digital programmable electric capacity, is also a kind of device utilizing digital signal to change its resistance value, can adjust according to impedance
The capacitance of joint its output of signal change.
In the present embodiment, by the signal condition unit of said structure, interference signal is carried out power amplification and adjust with isolation
Reason, and, by arranging the first adjustable resistance and the size of the second adjustable resistance whole circuit output current of restriction, by the 3rd
Adjustable resistance and tunable capacitor make impedance and the matches impedances in MVB of whole circuit, the most satisfactory dry
Disturb signal to export to MVB.
The structural representation of the MVB countermeasure set that Fig. 3 is provided by the another embodiment of invention, such as Fig. 3 institute
Showing, based on above-described embodiment, this countermeasure set also includes timer 15, switching signal generating unit 16 and relay 17.
Timer 15, is connected with described bus monitoring unit 10, for starting timing when receiving interference commencing signal,
And after arriving default timing time, generate interference stopping signal；
Switching signal generating unit 16, is connected with described timer 15 and described bus monitoring unit 10 respectively, is used for
Generate the first switch controlling signal when receiving described interference commencing signal, and generate when receiving described interference and stopping signal
Second switch control signal；
Relay 17, the input 171 of described relay 17 is connected with described switching signal generating unit 16, described relay
The outfan normally opened contact 172 of device 17 is serially connected with described operational amplifier U1Outfan and described isolating transformer T1 first
Input D1Between, wherein,
The input 171 of described relay 17 is its outfan normally opened contact when receiving described first switch controlling signal
172 Guan Bis, to connect described operational amplifier U1With described isolating transformer T1Between connection line；
The input 171 of described relay 17 is its outfan normally opened contact when receiving described second switch control signal
172 disconnect, to disconnect described operational amplifier U1With described isolating transformer T1Between connection line.
In the present embodiment, relay is further set between operational amplifier and isolating transformer as controlling to open
Closing, relay is a kind of electric control device, has interactive relationship between its input circuit and output loop.
Switching signal generating unit is the control device of relay, can use Programmable Logic Controller, single-chip microcomputer or other
Hardware circuit realizes, and generates the first switch controlling signal when switching signal generating unit receives interference commencing signal, and this is the years old
One switch controlling signal can be a certain size voltage or current signal, after the outfan of relay receives this signal, its line
Circle can obtain electric, so that its outfan normally opened contact Guan Bi, connects the connecting line between operational amplifier and isolating transformer
Road, and then, the interference signal that control unit generates is through operational amplifier, isolating transformer, three adjustable resistances and adjustable electric
Export after appearance to MVB, MVB is applied interference signal.
Further, timing can be carried out by timer, this default timing time be to MVB apply interference signal time
Between, when being no longer necessary to MVB is applied interference signal, generation interference is stopped signal by timer, and now, switching signal is produced
Raw unit generates second switch control signal when receiving interference stopping signal, and this second switch control signal can be a low electricity
Flat voltage or current signal, after the outfan of relay receives this signal, its coil losing electricity, so that its outfan is normally opened
Contact disconnects, and disconnects the connection line between operational amplifier and isolating transformer, and then, the interference signal that control unit generates
Export after being no longer pass through operational amplifier, isolating transformer, three adjustable resistances and tunable capacitor to MVB, stop MVB
Bus applies interference signal.
Whether the present embodiment is arranged by above-mentioned structure, can be automatically obtained the control to interference break-make, will automatically control
Interference signal is applied in MVB, it is of course also possible to be not provided with above-mentioned timer, switching signal generating unit and relay
Device, controls whether to be applied in MVB interference signal by way of manual operation, however it is not limited to side described in the present embodiment
Formula, such as, can arrange hand switch between control unit and signal condition unit, controls the connection of switch manually
Or disconnect, to control whether to be applied in MVB interference signal.
As it is shown on figure 3, in another embodiment, this countermeasure set can also include the first two-way switch S1, second two-way
Switch S2With capacitance C2。
Described first two-way switch S1Not moved end K11Through the 4th resistance R4It is connected to described first outlet line, and described
First two-way switch S1Moved end K12It is connected to direct voltage source VCC or ground connection to switching；
Described second two-way switch S2Not moved end K21Through the 5th resistance R5It is connected to described second outlet line, and described
Second two-way switch S2Moved end K22It is connected to direct voltage source VCC or ground connection to switching；
Described capacitance C2It is serially connected with in described first transmission line or the second transmission line.
In the present embodiment, being further provided with the first two-way switch, the second two-way switch and capacitance, its work is former
Reason is:
Direct voltage source is for providing the voltage signal of certain amplitude；The effect of capacitance is in this countermeasure set
DC current is isolated, and prevents the DC current produced because there is direct voltage source in countermeasure set from flowing in MVB；The
The effect of four resistance and the 5th resistance is to limit the electric current flowed in MVB, and the 4th resistance and the 5th resistance can be solid
The resistance determining resistance can also be for adjustable resistance.
First two-way switch and the second two-way switch can be single-pole double-throw switch (SPDT), it is also possible to for relay or other have
It is bi-directionally connected the switch of function.
The voltage swing assuming direct voltage source is X1V, when the moved end of the first two-way switch is connected to direct voltage source,
And during by the moved end ground connection of the second two-way switch, the voltage having X1V is exported extremely by the first outlet line after the 4th resistance
In MVB, now, will force to be pulled upward to X1V to the voltage in MVB, or, when the moved end by the first two-way switch
Ground connection, the and when moved end of the second two-way switch is connected to direct voltage source, will have the voltage of X1V by the after the 5th resistance
Two outlet lines export to MVB, now, will force be pulled upward to X1V to the voltage in MVB.
When by the moved end ground connection of the first two-way switch, time simultaneously by the moved end also ground connection of the second two-way switch, now, first
Voltage difference between outlet line and the second outlet line is zero, and the voltage in MVB will be forced to pull down to ground.
By foregoing description, the present embodiment further can apply another type of interference to MVB, will
Voltage in MVB forces pullup or pulldown to ground, further tests the runnability of MVB.
Last it is noted that various embodiments above is only in order to illustrate technical scheme, it is not intended to limit；To the greatest extent
The present invention has been described in detail by pipe with reference to foregoing embodiments, it will be understood by those within the art that: it depends on
So the technical scheme described in foregoing embodiments can be modified, or the most some or all of technical characteristic is entered
Row equivalent；And these amendments or replacement, do not make the essence of appropriate technical solution depart from various embodiments of the present invention technology
The scope of scheme.
Claims (5)
1. a MVB countermeasure set, it is characterised in that including:
Bus monitoring unit, obtains the transmission data in MVB, and resolves to obtain to described transmission data in real time
Take the data terminal slogan that in residing transmission data, each frame data are corresponding, when the FPDP that the frame data judging to know transmission are corresponding
Time number identical with preset data port numbers, generate interference commencing signal；
Parameter setting unit, is connected with control unit, is used for arranging interference parameter；
Control unit, is connected with described bus monitoring unit, for when receiving described interference commencing signal, according to described dry
Disturb parameter and generate interference signal；
Signal condition unit, is connected with described control unit, exports to MVB total after nursing one's health described interference signal
Line.
MVB countermeasure set the most according to claim 1, it is characterised in that also include:
Two to outer plugin, each described to being provided with external communication interface on outer plugin, each described to outer plugin respectively with institute
State signal condition unit to be connected, and each described to being additionally provided with on outer plugin for doing through described signal condition unit output
Disturb signal and export the external communication interface to MVB respectively.
MVB countermeasure set the most according to claim 1 and 2, it is characterised in that described signal condition list
Unit includes:
Operational amplifier, the inverting input of described operational amplifier is connected with described control unit, described operational amplifier
In-phase input end ground connection, exports after the power amplification of described interference signal is set multiple；
Isolating transformer, described isolating transformer includes first input end, the second input, the first outfan and the second output
End, is used for described control unit and MVB electrical isolation, wherein,
The outfan of described operational amplifier is connected with described first input end, described second input end grounding；
Described first outfan is by the first transmission line for being connected with MVB, and described second outfan is by the second biography
Lines is for being connected with MVB, and is in series with the first adjustable resistance in described first transmission line, described second transmission line
Road is in series with the second adjustable resistance；And it is parallel with the 3rd adjustable resistance between described first transmission line and the second transmission line
And tunable capacitor；
This countermeasure set also includes:
Impedance matching control unit, is connected with described parameter setting unit, described parameter setting unit, described control unit, institute
State operational amplifier, described isolating transformer, described first adjustable resistance, described second adjustable resistance, described 3rd adjustable electric
Resistance and described tunable capacitor are sequentially connected, and described impedance matching control unit is for generating impedance regulation according to described interference parameter
Signal, to control to adjust described first adjustable resistance, the second adjustable resistance, the resistance value of the 3rd adjustable resistance output and adjustable electric
Hold the capacitance of output.
MVB countermeasure set the most according to claim 3, it is characterised in that also include:
Timer, is connected with described bus monitoring unit, for starting timing when receiving interference commencing signal, and arrives
Generate interference after presetting timing time and stop signal；
Switching signal generating unit, is connected with described timer and described bus monitoring unit respectively, for receive described
Generate the first switch controlling signal during interference commencing signal, and generate second switch control when receiving described interference and stopping signal
Signal processed；
Relay, the input of described relay is connected with described switching signal generating unit, and the outfan of described relay is normal
Open contact to be serially connected with between the outfan of described operational amplifier and the first input end of described isolating transformer, wherein,
The input of described relay is its outfan normally opened contact Guan Bi when receiving described first switch controlling signal, to connect
Logical connection line between described operational amplifier and described isolating transformer；
The input of described relay its outfan normally opened contact when receiving described second switch control signal disconnects, with disconnected
Open the connection line between described operational amplifier and described isolating transformer.
MVB countermeasure set the most according to claim 3, it is characterised in that also include:
First two-way switch, not moved end the 4th resistance of described first two-way switch is connected to described first outlet line, and
It is connected to direct voltage source or ground connection to the moved end switching of described first two-way switch；
Second two-way switch, not moved end the 5th resistance of described second two-way switch is connected to described second outlet line, and
It is connected to direct voltage source or ground connection to the moved end switching of described second two-way switch；
Capacitance, is serially connected with in described first transmission line or the second transmission line.
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105790750B (en) * | 2014-12-26 | 2018-11-20 | 中车大连电力牵引研发中心有限公司 | The contact WTB deoxidation circuit |
| CN104683441B (en) * | 2015-01-09 | 2018-06-22 | 中国铁路总公司 | A kind of communication means of rail vehicle network system |
| US9374174B1 (en) * | 2015-01-22 | 2016-06-21 | Infineon Technologies Ag | Pulse width modulated (PWM) sensor interface using a terminated symmetrical physical layer |
| CN107024921B (en) * | 2017-04-24 | 2024-02-20 | 中车大连电力牵引研发中心有限公司 | Multifunctional vehicle bus fault simulator |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200956200Y (en) * | 2006-09-13 | 2007-10-03 | 谢步明 | MVB based distributed digital collecting module |
| CN101841393A (en) * | 2010-05-17 | 2010-09-22 | 中国北车股份有限公司大连电力牵引研发中心 | PWM (Pulse Width Modulation) input module and MVB (Multifunction Vehicle Bus) equipment based on MVB interface |
| CN101848062A (en) * | 2010-05-17 | 2010-09-29 | 中国北车股份有限公司大连电力牵引研发中心 | Analogue quantity output module based on MVB (Multifunction Vehicle Bus) interface and MVB device |
| CN201754588U (en) * | 2010-08-13 | 2011-03-02 | 中国北车股份有限公司大连电力牵引研发中心 | Repeater based on MVB bus network |
| CN202713346U (en) * | 2012-07-27 | 2013-01-30 | 中国北车股份有限公司大连电力牵引研发中心 | Multifunctional vehicle bus interference device |
-
2012
- 2012-07-27 CN CN201210264425.4A patent/CN103580971B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200956200Y (en) * | 2006-09-13 | 2007-10-03 | 谢步明 | MVB based distributed digital collecting module |
| CN101841393A (en) * | 2010-05-17 | 2010-09-22 | 中国北车股份有限公司大连电力牵引研发中心 | PWM (Pulse Width Modulation) input module and MVB (Multifunction Vehicle Bus) equipment based on MVB interface |
| CN101848062A (en) * | 2010-05-17 | 2010-09-29 | 中国北车股份有限公司大连电力牵引研发中心 | Analogue quantity output module based on MVB (Multifunction Vehicle Bus) interface and MVB device |
| CN201754588U (en) * | 2010-08-13 | 2011-03-02 | 中国北车股份有限公司大连电力牵引研发中心 | Repeater based on MVB bus network |
| CN202713346U (en) * | 2012-07-27 | 2013-01-30 | 中国北车股份有限公司大连电力牵引研发中心 | Multifunctional vehicle bus interference device |
Non-Patent Citations (2)
| Title |
|---|
| "MVB网络接口单元的研究与FPGA实现";陈艳子,;《中国优秀硕士学位论文全文数据库-工程科技Ⅱ辑 》;20090115;全文 * |
| "The Multifunction Vehicle Bus(MVB)";zur Bonsen,G.A,;《1995 IEEE International Workshop on Factory Communication Systems》;19951006;27-34 * |
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