CN108683481A - A kind of MVB network connection architectures and a kind of levitation train network system - Google Patents

A kind of MVB network connection architectures and a kind of levitation train network system Download PDF

Info

Publication number
CN108683481A
CN108683481A CN201810500427.6A CN201810500427A CN108683481A CN 108683481 A CN108683481 A CN 108683481A CN 201810500427 A CN201810500427 A CN 201810500427A CN 108683481 A CN108683481 A CN 108683481A
Authority
CN
China
Prior art keywords
mvb
port
communications cable
liang
connectors
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201810500427.6A
Other languages
Chinese (zh)
Inventor
王庭
胡波洋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Railway Construction Heavy Industry Group Co Ltd
Original Assignee
China Railway Construction Heavy Industry Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Railway Construction Heavy Industry Group Co Ltd filed Critical China Railway Construction Heavy Industry Group Co Ltd
Priority to CN201810500427.6A priority Critical patent/CN108683481A/en
Publication of CN108683481A publication Critical patent/CN108683481A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/22Arrangements for detecting or preventing errors in the information received using redundant apparatus to increase reliability
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61LGUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L15/00Indicators provided on the vehicle or vehicle train for signalling purposes ; On-board control or communication systems
    • B61L15/0018Communication with or on the vehicle or vehicle train
    • B61L15/0036Conductor-based, e.g. using CAN-Bus, train-line or optical fibres
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/06Management of faults, events, alarms or notifications
    • H04L41/0654Management of faults, events, alarms or notifications using network fault recovery
    • H04L41/0663Performing the actions predefined by failover planning, e.g. switching to standby network elements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/01Protocols
    • H04L67/12Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks

Abstract

The invention discloses a kind of MVB network connection architectures and a kind of levitation train network system, which includes the first MVB connectors and the 2nd MVB connectors;Wherein, first via input signal is connected by the first MVB connectors with first via output signal;Second tunnel input signal is connected by the 2nd MVB connectors with the second tunnel output signal.MVB network connection architectures provided by the invention, a MVB connector include the input signal and output signal of same circuit-switched data signal, and are linked together by circuit board inside connector, while two MVB connectors are mutually redundant.When wherein some equipment is loosened or fallen off there are one MVB connector plug, another MVB connector plug internal wiring of this equipment still links together, it can guarantee that communication is normal, do not influence miscellaneous equipment normal work, improve the reliability and stability of train network communication.

Description

A kind of MVB network connection architectures and a kind of levitation train network system
Technical field
The present invention relates to technical field of rail traffic, more specifically to a kind of MVB network connection architectures and a kind of magnetic Suspension vehicle network system.
Background technology
TCMS (Chinese names:Train Control and management system, full name in English:Train Control and Management System) communication reliability very crucial effect is played to vehicle normal operation.Train network communication is equal For two-way redundant signals, magnetic suspension train in the prior art uses the network connection sides MVB of 61375 communication standard of standard IEC Formula, MVB network connections are as shown in Figure 1,1,2 be respectively two MVB connectors, and the inside of two MVB connectors is connected, i.e., one MVB connector plugs include the input signal of two paths of signals (Data-A and Data-B), another MVB connector plug includes two The output signal of road signal, the network system of entire magnetic suspension train is as shown in Fig. 2, 1-n indicates n system unit, each system It is connected by 4 core cables between system unit.This connection type is once the plug of MVB connector loosens or falls off, meeting It causes all subsystem communications of this connector rear end to interrupt, the normal operation of permutation vehicle can be even influenced when serious.
Therefore, how to improve the reliability and stability of train network communication is that those skilled in the art need what is solved to ask Topic.
Invention content
The purpose of the present invention is to provide a kind of MVB network connection architectures and a kind of levitation train network systems, improve The reliability and stability of train network communication.
To achieve the above object, the present invention provides a kind of MVB network connection architectures, including the first MVB connectors and Two MVB connectors;
Wherein, first via input signal is connected by the first MVB connectors with first via output signal;
Second tunnel input signal is connected by the 2nd MVB connectors with the second tunnel output signal.
Wherein, the first MVB connectors and the 2nd MVB connectors are Harting special connectors.
Wherein, the first via input signal passes through first liang of core communications cable in the first MVB connectors and institute First via output signal is stated to be connected;
Second tunnel input signal passes through second liang of core communications cable and described second in the 2nd MVB connectors Road output signal is connected.
Wherein, the first MVB connectors include that first liang of core communications cable terminals and second liang of core communications cable connect Line end, the 2nd MVB connectors include two core communications cable terminals of third and the 4th liang of core communications cable terminals;
The positive signal of the first via input signal connects the first port of first liang of core communications cable terminals, institute The first port for stating first liang of core communications cable terminals connects the 4th port of second liang of core communications cable terminals, institute The 4th port for stating second liang of core communications cable terminals is the output port of the positive signal of the first via output signal;
The negative signal of the first via input signal connects the third port of first liang of core communications cable terminals, institute The third port for stating first liang of core communications cable terminals connects the second port of second liang of core communications cable terminals, institute The second port for stating second liang of core communications cable terminals is the output port of the negative signal of the first via output signal;
The positive signal of second tunnel input signal connects the second port of two core communications cable terminals of the third, institute The second port for stating two core communications cable terminals of third connects the third port of the 4th liang of core communications cable terminals, institute The third port for stating the 4th liang of core communications cable terminals is the output port of the positive signal of second tunnel output signal;
The negative signal of second tunnel input signal connects the 4th port of two core communications cable terminals of the third, institute The 4th port for stating two core communications cable terminals of third connects the first port of the 4th liang of core communications cable terminals, institute The first port for stating the 4th liang of core communications cable terminals is the output port of the negative signal of second tunnel output signal.
Wherein, the first MVB connectors further include the first connector plug;
Wherein, the first port of first connector plug connects the positive signal of the first via input signal, and second Port connects the negative signal of the first via input signal, and the 4th port connects the of first liang of core communications cable terminals The third port of Two-port netwerk and second liang of core communications cable terminals, fifth port connect first liang of core communications cable The first port of 4th port of terminals and second liang of core communications cable terminals;
The 2nd MVB connectors further include the second connector plug;
Wherein, the 4th port of second connector plug connects the positive signal of second tunnel input signal, and the 5th Port connects the negative signal of second tunnel input signal, and first port connects the of two core communications cable terminals of the third 4th port of Single port and the 4th liang of core communications cable terminals, second port connect the two core communications cable of third The second port of the third port of terminals and the 4th liang of core communications cable terminals.
To achieve the above object, the present invention provides a kind of levitation train network systems, including multiple system units, often A system unit includes such as above-mentioned MVB network connection architectures;
Wherein, in the first via output signal of the first MVB connectors in previous system unit and latter system unit The first via input signal of first MVB connectors is connected;
In second tunnel output signal of the 2nd MVB connectors in the previous system unit and the latter system unit The 2nd MVB connectors the second tunnel input signal be connected.
By above scheme it is found that a kind of MVB network connection architectures provided by the invention, including the first MVB connectors and 2nd MVB connectors;Wherein, first via input signal is connected by the first MVB connectors with first via output signal;The Two tunnel input signals are connected by the 2nd MVB connectors with the second tunnel output signal.
MVB network connection architectures provided by the invention, a MVB connector include the input signal of same circuit-switched data signal And output signal, and linked together by circuit board inside connector, while two MVB connectors are mutually redundant.When Wherein some equipment is loosened or is fallen off there are one MVB connector plug, another MVB connector plug inner wire of this equipment Road still links together, and can guarantee that communication is normal, does not influence miscellaneous equipment normal work.It can be seen that provided by the invention MVB network connection architectures improve the reliability and stability of train network communication.The invention also discloses a kind of magnetic levitation vehicles Network system, equally can realize above-mentioned technique effect.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with Obtain other attached drawings according to these attached drawings.
Fig. 1 is a kind of structure chart of MVB network connection architectures in the prior art;
Fig. 2 is a kind of structure chart of levitation train network system in the prior art;
Fig. 3 is a kind of structure chart of MVB network connection architectures disclosed by the embodiments of the present invention;
Fig. 4 is a kind of structure chart of levitation train network system disclosed by the embodiments of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, those of ordinary skill in the art are obtained every other without creative efforts Embodiment shall fall within the protection scope of the present invention.
The embodiment of the invention discloses a kind of MVB network connection architectures, the reliability of train network communication and steady is improved It is qualitative.
Referring to Fig. 3, a kind of structure chart of MVB network connection architectures disclosed by the embodiments of the present invention, as shown in figure 3, including First MVB connectors and the 2nd MVB connectors;
Wherein, first via input signal is connected by the first MVB connectors with first via output signal;
Second tunnel input signal is connected by the 2nd MVB connectors with the second tunnel output signal.
In specific implementation, as shown in figure 3,1,2 be respectively the first MVB connectors and the 2nd MVB connectors, Data-A is First via signal, Data-B are second road signal, the input signal and output signal of Data-A with the first MVB connector phases Even, similarly, the input signal and output signal of Data-B are connected with the 2nd MVB connectors.
MVB network connection architectures provided in an embodiment of the present invention, a MVB connector include the defeated of same circuit-switched data signal Enter signal and output signal, and linked together by circuit board inside connector, while two MVB connectors are superfluous each other It is remaining.When wherein some equipment is loosened or is fallen off there are one MVB connector plug, another MVB connector plug of this equipment Internal wiring still links together, and can guarantee that communication is normal, does not influence miscellaneous equipment normal work.It can be seen that of the invention The MVB network connection architectures that embodiment provides improve the reliability and stability of train network communication.
On the basis of the above embodiments, preferably, the first MVB connectors and the 2nd MVB Connector is Harting special connectors.
Preferably, the first MVB connectors and the 2nd MVB connectors are all made of the special connector of 8 terminal types of Harting.
On the basis of the above embodiments, preferably, the first via input signal passes through described first First liang of core communications cable in MVB connectors is connected with the first via output signal;
Second tunnel input signal passes through second liang of core communications cable and described second in the 2nd MVB connectors Road output signal is connected.
On the basis of the above embodiments, preferably, the first MVB connectors include that first liang of core is logical Believe that cable end and second liang of core communications cable terminals, the 2nd MVB connectors include that the two core communications cable of third connects Line end and the 4th liang of core communications cable terminals;
The positive signal of the first via input signal connects the first port of first liang of core communications cable terminals, institute The first port for stating first liang of core communications cable terminals connects the 4th port of second liang of core communications cable terminals, institute The 4th port for stating second liang of core communications cable terminals is the output port of the positive signal of the first via output signal;
The negative signal of the first via input signal connects the third port of first liang of core communications cable terminals, institute The third port for stating first liang of core communications cable terminals connects the second port of second liang of core communications cable terminals, institute The second port for stating second liang of core communications cable terminals is the output port of the negative signal of the first via output signal;
The positive signal of second tunnel input signal connects the second port of two core communications cable terminals of the third, institute The second port for stating two core communications cable terminals of third connects the third port of the 4th liang of core communications cable terminals, institute The third port for stating the 4th liang of core communications cable terminals is the output port of the positive signal of second tunnel output signal;
The negative signal of second tunnel input signal connects the 4th port of two core communications cable terminals of the third, institute The 4th port for stating two core communications cable terminals of third connects the first port of the 4th liang of core communications cable terminals, institute The first port for stating the 4th liang of core communications cable terminals is the output port of the negative signal of second tunnel output signal.
On the basis of the above embodiments, preferably, the first MVB connectors further include the first connection Device plug;
Wherein, the first port of first connector plug connects the positive signal of the first via input signal, and second Port connects the negative signal of the first via input signal, and the 4th port connects the of first liang of core communications cable terminals The third port of Two-port netwerk and second liang of core communications cable terminals, fifth port connect first liang of core communications cable The first port of 4th port of terminals and second liang of core communications cable terminals;
The 2nd MVB connectors further include the second connector plug;
Wherein, the 4th port of second connector plug connects the positive signal of second tunnel input signal, and the 5th Port connects the negative signal of second tunnel input signal, and first port connects the of two core communications cable terminals of the third 4th port of Single port and the 4th liang of core communications cable terminals, second port connect the two core communications cable of third The second port of the third port of terminals and the 4th liang of core communications cable terminals.
As shown in figure 3,3,4 be respectively the terminals of the two core communications cables, 5 be the connection plug of MVB connectors, and connection is inserted 1 in head is first port, and port serial number is laterally incremented by.It can include the terminal electricity of 120 Ω inside each MVB connectors Resistance, does not limit the specific resistance value of the terminal resistance specifically herein, and those skilled in the art can be according to actual conditions spirit Selection living, each MVB connectors use the connection type of the communications cable one-in-and-one-out of two two cores.In the present embodiment, communication Data-A and Data-B two paths of data is respectively connected to the first MVB connectors by the transmission of data by the way of two-way redundancy With the 2nd MVB connectors, Data-A is inputted from terminals 3, is exported from terminals 4, and the communication connection of Data-B data is identical, passes through The plug 5 of two MVB connectors makes each system unit of levitation train form train network.
Present invention also provides a kind of levitation train network systems, referring to Fig. 4, a kind of magnetic disclosed by the embodiments of the present invention The structure chart of suspension vehicle network system, as shown in figure 4, including multiple system units, each system unit includes such as Above-mentioned MVB network connection architectures;
Wherein, in the first via output signal of the first MVB connectors in previous system unit and latter system unit The first via input signal of first MVB connectors is connected;
In second tunnel output signal of the 2nd MVB connectors in the previous system unit and the latter system unit The 2nd MVB connectors the second tunnel input signal be connected.
As shown in figure 4,1,2 ... n are each system unit of magnetic suspension train, such as door control unit, suspension monitoring Unit, the control unit that tests the speed etc., two-way communication data are connected to latter system after the output of the MVB connectors of previous system unit The corresponding MVB connectors of unit, when in wherein certain system unit there are one MVB connector plugs loosen or fall off, this system Another MVB connector plug internal wiring of unit still links together, and can guarantee that communication is normal, is not influencing miscellaneous equipment just Often work.It can be seen that levitation train network system provided in an embodiment of the present invention, improves the reliable of train network communication Property and stability.
Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with other The difference of embodiment, just to refer each other for identical similar portion between each embodiment.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, as defined herein General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one The widest range caused.
Each embodiment is described by the way of progressive in specification, the highlights of each of the examples are with other realities Apply the difference of example, just to refer each other for identical similar portion between each embodiment.For system disclosed in embodiment Speech, since it is corresponded to the methods disclosed in the examples, so description is fairly simple, related place is referring to method part illustration .It should be pointed out that for those skilled in the art, under the premise of not departing from the application principle, also Can to the application, some improvement and modification can also be carried out, these improvement and modification also fall into the application scope of the claims It is interior.
It should also be noted that, in the present specification, relational terms such as first and second and the like be used merely to by One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning Covering non-exclusive inclusion, so that the process, method, article or equipment including a series of elements includes not only that A little elements, but also include other elements that are not explicitly listed, or further include for this process, method, article or The intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence "including a ...", is not arranged Except there is also other identical elements in the process, method, article or apparatus that includes the element.

Claims (6)

1. a kind of MVB network connection architectures, which is characterized in that including the first MVB connectors and the 2nd MVB connectors;
Wherein, first via input signal is connected by the first MVB connectors with first via output signal;
Second tunnel input signal is connected by the 2nd MVB connectors with the second tunnel output signal.
2. MVB network connection architectures according to claim 1, which is characterized in that the first MVB connectors and described second MVB connectors are Harting special connectors.
3. MVB network connection architectures according to claim 2, which is characterized in that the first via input signal passes through described First liang of core communications cable in first MVB connectors is connected with the first via output signal;
Second tunnel input signal is defeated by second liang of core communications cable in the 2nd MVB connectors and second road Go out signal to be connected.
4. MVB network connection architectures according to claim 3, which is characterized in that the first MVB connectors include first liang Core communications cable terminals and second liang of core communications cable terminals, the 2nd MVB connectors include two core communication line of third Cable terminals and the 4th liang of core communications cable terminals;
The positive signal of the first via input signal connects the first port of first liang of core communications cable terminals, and described The first port of one or two core communications cable terminals connects the 4th port of second liang of core communications cable terminals, and described 4th port of two liang of core communications cable terminals is the output port of the positive signal of the first via output signal;
The negative signal of the first via input signal connects the third port of first liang of core communications cable terminals, and described The third port of one or two core communications cable terminals connects the second port of second liang of core communications cable terminals, and described The second port of two liang of core communications cable terminals is the output port of the negative signal of the first via output signal;
The positive signal of second tunnel input signal connects the second port of two core communications cable terminals of the third, and described The second port of three liang of core communications cable terminals connects the third port of the 4th liang of core communications cable terminals, and described The third port of four liang of core communications cable terminals is the output port of the positive signal of second tunnel output signal;
The negative signal of second tunnel input signal connects the 4th port of two core communications cable terminals of the third, and described 4th port of three liang of core communications cable terminals connects the first port of the 4th liang of core communications cable terminals, and described The first port of four liang of core communications cable terminals is the output port of the negative signal of second tunnel output signal.
5. MVB network connection architectures according to claim 4, which is characterized in that the first MVB connectors further include first Connector plug;
Wherein, the first port of first connector plug connects the positive signal of the first via input signal, second port The negative signal of the first via input signal is connected, the 4th port connects the second end of first liang of core communications cable terminals The third port of mouth and second liang of core communications cable terminals, fifth port connect first liang of core communications cable wiring The first port of 4th port and second liang of core communications cable terminals at end;
The 2nd MVB connectors further include the second connector plug;
Wherein, the 4th port of second connector plug connects the positive signal of second tunnel input signal, fifth port The negative signal of second tunnel input signal is connected, first port connects the first end of two core communications cable terminals of the third 4th port of mouth and the 4th liang of core communications cable terminals, second port connect the two core communications cable wiring of third The second port of the third port at end and the 4th liang of core communications cable terminals.
6. a kind of levitation train network system, which is characterized in that including multiple system units, each system unit wraps Include MVB network connection architectures as described in any one in claim 1-5;
Wherein, the first via output signal of the first MVB connectors in previous system unit and first in latter system unit The first via input signal of MVB connectors is connected;
Second tunnel output signal of the 2nd MVB connectors in the previous system unit and the in the latter system unit Second tunnel input signal of two MVB connectors is connected.
CN201810500427.6A 2018-05-23 2018-05-23 A kind of MVB network connection architectures and a kind of levitation train network system Pending CN108683481A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810500427.6A CN108683481A (en) 2018-05-23 2018-05-23 A kind of MVB network connection architectures and a kind of levitation train network system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810500427.6A CN108683481A (en) 2018-05-23 2018-05-23 A kind of MVB network connection architectures and a kind of levitation train network system

Publications (1)

Publication Number Publication Date
CN108683481A true CN108683481A (en) 2018-10-19

Family

ID=63808056

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810500427.6A Pending CN108683481A (en) 2018-05-23 2018-05-23 A kind of MVB network connection architectures and a kind of levitation train network system

Country Status (1)

Country Link
CN (1) CN108683481A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110979395A (en) * 2020-01-02 2020-04-10 中车青岛四方车辆研究所有限公司 MVB bus termination device and train network control system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105429837A (en) * 2015-12-25 2016-03-23 中国铁道科学研究院 MVB repeater
CN105742920A (en) * 2014-12-12 2016-07-06 中车大连电力牵引研发中心有限公司 Branching apparatus and system of multifunctional vehicle bus (MVB)

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105742920A (en) * 2014-12-12 2016-07-06 中车大连电力牵引研发中心有限公司 Branching apparatus and system of multifunctional vehicle bus (MVB)
CN105429837A (en) * 2015-12-25 2016-03-23 中国铁道科学研究院 MVB repeater

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
康玲霞: "关于轨道车辆空调系统 MVB 通信连接方式的研究", 《技术研发》 *
彭冬良: "深圳地铁1号线续建工程多功能车辆总线网络系统的可靠性分析", 《城市轨道交通研究》 *
王志伟: "马来西亚吉隆坡机场快线原列车与增购车列车网络控制系统的比较", 《国外铁道车辆》 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110979395A (en) * 2020-01-02 2020-04-10 中车青岛四方车辆研究所有限公司 MVB bus termination device and train network control system
CN110979395B (en) * 2020-01-02 2021-08-10 中车青岛四方车辆研究所有限公司 MVB bus termination device and train network control system

Similar Documents

Publication Publication Date Title
US7855573B1 (en) Controller area network active bus terminator
JPS62114021A (en) Back plane having back plane bus
CN108683481A (en) A kind of MVB network connection architectures and a kind of levitation train network system
CN214851275U (en) Node for automatically connecting CAN terminal resistor
CN106850069A (en) Data optical fiber cascade unit and system
CN204967812U (en) A relay
CN208971542U (en) A kind of network structure based on rail traffic
CN101453093A (en) Jumper wire apparatus and jumper wire apparatus assembly
CN208110593U (en) A kind of vehicle device communication link of car networking
CN112373420B (en) Bus branching device with open circuit detection function
CN205123739U (en) Emergent wireless private network communication system
Park et al. Signal integrity analysis of automotive CAN-FD networks with series damping resistor-equipped joint connectors
CN209526292U (en) A kind of high-speed transfer wiring connector
CN212332669U (en) Four-channel double-line reconnection connecting device for locomotive
CN110311262B (en) Special connecting wire device for train mutual backup power supply test and manufacturing method
CN212182714U (en) Vehicle engine connecting wire
CN114361884A (en) CAN bus terminal resistor automatic matching design method for boxed missile
CN110504600A (en) A kind of generalization attachment device and connection method based on bus architecture
CN1165198C (en) IEEE 1394 cable connector with short circuit switch
CN209764425U (en) Engine test pencil
CN202076534U (en) Lead support for network plug
CN213649586U (en) Rail vehicle
US7388452B2 (en) Integrated branching network system and joint connector
CN206489863U (en) LED display and display device
CN210007077U (en) Connecting device for vacuum detection signal transmission

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
CB02 Change of applicant information
CB02 Change of applicant information

Address after: 410100 No. 88 East 7 Line, Changsha Economic and Technological Development Zone, Changsha City, Hunan Province

Applicant after: China Railway Construction Heavy Industry Group Co.,Ltd.

Address before: 410100 No. 88 Dongqi Road, Changsha Economic and Technological Development Zone, Changsha City, Hunan Province

Applicant before: China Railway Construction Heavy Industry Co.,Ltd.

RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20181019