CN110650045A - Diagnosis positioning device and method for MVB network port address conflict - Google Patents
Diagnosis positioning device and method for MVB network port address conflict Download PDFInfo
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- CN110650045A CN110650045A CN201910902184.3A CN201910902184A CN110650045A CN 110650045 A CN110650045 A CN 110650045A CN 201910902184 A CN201910902184 A CN 201910902184A CN 110650045 A CN110650045 A CN 110650045A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0677—Localisation of faults
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40006—Architecture of a communication node
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0631—Management of faults, events, alarms or notifications using root cause analysis; using analysis of correlation between notifications, alarms or events based on decision criteria, e.g. hierarchy, tree or time analysis
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/50—Address allocation
- H04L61/5046—Resolving address allocation conflicts; Testing of addresses
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40267—Bus for use in transportation systems
- H04L2012/40293—Bus for use in transportation systems the transportation system being a train
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Abstract
The invention discloses a diagnosis positioning device and a method for MVB network port address conflict, wherein the device comprises: the train control and management system comprises MVB relays connected among all MVB network segments of the train and the train control and management system; wherein: the MVB repeater analyzes signals of MVB network segments at two ends, judges whether to respond from frame data or conflict response, and transmits a response judgment result to the train control and management system; and the train control and management system diagnoses and positions the address conflict of the MVB network ports according to the received response judgment results of all the MVB network segments at the two ends of the MVB repeater and outputs a diagnosis and positioning result. The invention can quickly diagnose and position the address conflict of the MVB network port by analyzing the slave frame response data of each MVB network segment.
Description
Technical Field
The present invention relates to the field of Bus communication network technology, and in particular, to a device and a method for diagnosing and locating address conflicts of a Multifunction Vehicle Bus (MVB) network port.
Background
The train generally has a plurality of carriages, each carriage has a plurality of devices, and all the devices communicate with each other through an MVB bus communication network. In the MVB communication network, each device port address has uniqueness. With the progress of technology, more and more devices are installed in the vehicle cabin, and it is highly likely that the MVB network port address conflicts of the devices are caused by various reasons such as wrong configuration documents, unsmooth communication of personnel, improper operation of personnel, and the like, thereby affecting the normal communication of the whole MVB communication network. At present, when the address of the MVB network port of the equipment conflicts, the timely detection cannot be carried out, and the examination needs to be carried out in a long time.
Therefore, how to quickly diagnose and locate the address conflict of the MVB network port is an urgent problem to be solved.
Disclosure of Invention
In view of this, the present invention provides a diagnosis and positioning device for MVB network port address conflict, which can quickly diagnose and position MVB network port address conflict by analyzing the slave frame response data of each MVB network segment.
The invention provides a diagnosis positioning device for MVB network port address conflict, which comprises: the train control and management system comprises MVB relays connected among all MVB network segments of the train and the train control and management system; wherein:
the MVB repeater analyzes signals of MVB network segments at two ends, judges whether a slave frame data response or a conflict response exists or not, and transmits a response judgment result to the train control and management system;
and the train control and management system diagnoses and positions the equipment with the address conflict of the MVB network ports based on the received response judgment results of all the MVB network segments at the two ends of the MVB repeater and outputs a diagnosis and positioning result.
Preferably, the train control and management system includes:
the first judgment module is used for judging whether a slave frame response fault exists or not based on the response judgment results of the MVB network segments at the two ends of all the MVB repeaters;
the first determining module is used for determining a failure MVB network segment when the slave frame response failure is judged based on the first judging module;
a second judging module, configured to judge whether there is a slave frame transmission path based on the slave frame transmission records of all MVB relays;
a second determining module, configured to determine that the address collision devices are all in the MVB segment with slave frame response failure when it is determined that there is no slave frame transmission path based on the second determining module;
and a third determining module, configured to trace back a slave frame start sending MVB segment based on the slave frame transmission paths recorded by all the MVB repeaters when a slave frame transmission path is determined based on the second determining module, and determine that each address collision device is in the slave frame transmission start MVB segment.
Preferably, the MVB repeater includes: an MVB network transmission module; wherein:
and the MVB network transmission module is used for transmitting the response judgment result of the MVB network segments at the two ends of the MVB repeater to the train control and management system through the MVB network.
Preferably, the MVB repeater includes: an Ethernet communication module; wherein:
and the Ethernet communication module is used for transmitting the response judgment result of the MVB network segments at the two ends of the MVB repeater to the train control and management system through an Ethernet network.
Preferably, the MVB repeater includes: other train communication modules; wherein:
and the other train communication module is used for transmitting the response judgment result of the MVB network segments at the two ends of the MVB repeater to the train control and management system through other train communication networks.
A diagnosis positioning method of MVB network port address conflict is applied to a diagnosis positioning device of MVB network port address conflict, and the diagnosis positioning device of MVB network port address conflict comprises the following steps: the train control and management system comprises MVB relays connected among all MVB network segments of the train and the train control and management system; the method comprises the following steps:
analyzing signals of MVB network segments at two ends through the MVB repeater, judging whether a slave frame data response or a conflict response exists, and transmitting a response judgment result to the train control and management system;
and diagnosing and positioning the address conflict of the MVB network ports by the train control and management system based on the received response judgment results of the MVB network segments at the two ends of the MVB repeater, and outputting a diagnosis and positioning result.
Preferably, the diagnosing and positioning, by the train control and management system, the MVB network port address conflict based on the received response determination results of the MVB network segments at both ends of the MVB repeater, and outputting a diagnosis positioning result includes:
and judging whether a slave frame response fault exists or not based on response judgment results of all MVB network segments at two ends of the MVB repeater, if so, then:
determining a failure MVB network segment;
and judging whether a slave frame transmission path exists or not based on the slave frame transmission records of all the MVB relays, if not, determining that the address conflict devices are all in the MVB network segment with the slave frame response fault, and if so,:
and based on the slave frame transmission paths recorded by all the MVB relays, tracing back a slave frame starting transmission MVB network segment, and determining that each address conflict device is in the slave frame transmission starting MVB network segment.
Preferably, the transmitting the response determination result to the train control and management system includes:
and transmitting the response judgment result of the MVB network segments at the two ends of the MVB repeater to the train control and management system through the MVB network.
Preferably, the transmitting the response determination result to the train control and management system includes:
and transmitting the response judgment result of the MVB network segments at the two ends of the MVB repeater to the train control and management system through an Ethernet network.
Preferably, the transmitting the response determination result to the train control and management system includes:
and transmitting the response judgment result of the MVB network segments at the two ends of the MVB repeater to the train control and management system through other train communication networks.
In summary, the present invention discloses a diagnosis positioning apparatus for MVB network port address conflict, including: the train control and management system comprises MVB relays connected among all MVB network segments of the train and the train control and management system; wherein: the MVB repeater analyzes signals of MVB network segments at two ends, judges whether a slave frame data response or a conflict response exists or not, and transmits a response judgment result to the train control and management system; and the train control and management system diagnoses and positions the address conflict of the MVB network ports according to the received response judgment results of all the MVB network segments at the two ends of the MVB repeater and outputs a diagnosis and positioning result. The invention can quickly diagnose and position the address conflict of the MVB network port by analyzing the slave frame response data of each MVB network segment.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a diagnosis positioning apparatus 1 for MVB network port address conflict according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a diagnosis positioning apparatus for MVB network port address conflict according to an embodiment 2 of the present invention;
FIG. 3 is a schematic diagram of MVB slave frame response and propagation direction during normal communication of the MVB network disclosed in the present invention;
FIG. 4 is a diagram illustrating slave frame response and propagation directions in case of address conflicts between devices in the same MVB segment according to the present disclosure;
FIG. 5 is a diagram illustrating slave frame response and propagation directions when different MVB segment device addresses collide according to the present invention;
fig. 6 is a flowchart of a method of embodiment 1 of a method for diagnosing and positioning address conflicts of MVB network ports according to the present invention;
fig. 7 is a flowchart of a method of embodiment 2 of a method for diagnosing and positioning address conflicts of MVB network ports according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, which is a schematic structural diagram of a location diagnosing apparatus for MVB network port address collision according to an embodiment 1 of the present invention, the apparatus includes: the train control and management system comprises MVB relays connected among all MVB network segments of the train and the train control and management system; wherein:
the MVB repeater analyzes signals of MVB network segments at two ends, judges whether a slave frame data response or a conflict response exists or not, and transmits a response judgment result to the train control and management system;
and the train control and management system diagnoses and positions the equipment with the address conflict of the MVB network ports based on the received response judgment results of all the MVB network segments at the two ends of the MVB repeater and outputs a diagnosis and positioning result.
The working principle of the diagnosis positioning device for MVB network port address conflict disclosed by the above embodiment is as follows: a schematic diagram of normal communication of a train MVB network is shown in fig. 3, and each MVB network segment is connected with a different number of MVB devices. When the MVB communicates normally, only one device responds to the master frame data of any port address and sends out slave frame data (the device 12 responds as an example in the figure). If the port addresses collide, two or more devices may respond by sending out slave frame data, which may cause the MVB signals in the MVB segment to collide and thereby generate a disorder. Therefore, the train control and management system acquires the slave frame response and the conflict result of each MVB network segment through the MVB repeater, and diagnoses and positions the equipment with the conflict of the MVB network port addresses based on the received data.
On the basis of the above device embodiment 1, as shown in fig. 2, a schematic structural diagram of an embodiment 2 of a diagnosis positioning device for MVB network port address conflict disclosed by the present invention is shown, where the device includes: the train control and management system comprises MVB repeaters connected between the MVB network segments and a train control and management system; wherein, train control and management system includes: the device comprises a first judgment module, a first determination module, a second judgment module, a second determination module and a third determination module; wherein:
the first judgment module is used for judging whether a slave frame response fault exists or not based on the response judgment results of MVB network segments at two ends of all MVB relays;
the first determining module is used for determining a failure MVB network segment when the slave frame response failure is judged based on the first judging module;
a second judging module, configured to judge whether there is a slave frame transmission path based on the slave frame transmission records of all MVB repeaters;
the second determining module is used for determining that the address conflict devices are all in the MVB network segment with the slave frame response fault when the second judging module judges that no slave frame transmission path exists;
and the third determining module is used for tracing back the slave frame starting transmission MVB network segment based on the slave frame transmission paths recorded by all the MVB relays and determining that each address conflict device is in the slave frame transmission starting MVB network segment when the slave frame transmission path is judged based on the second judging module.
The location of the device with the MVB network address conflict is divided into two cases:
(1) in the same MVB network segment
As shown in fig. 4, a plurality of devices on the same MVB segment respond and send out slave frames (taking device 12 and device 1N responses of MVB segment 1 as an example). Under the condition, the MVB of the network segment where the equipment is located directly generates collision and disorder from the frame signal, and the MVB repeater I and the MVB repeater II detect that the collision response exists in the MVB network segment 1 and stop transmitting to other MVB network segments at the same time.
(2) In different MVB network segments
As shown in fig. 5, multiple devices on different MVB segments respond and send out slave frames (taking the device 12 of MVB segment 1 and the device 21 of MVB segment 2 as an example for illustration). In this case, the slave frame data of the device 12 that responded first passes through the MVB repeater 2 to the MVB segment 2, and the device 21 in the segment sends out the MVB slave frame signal to generate collision and disturbance. And the MVB repeater detect that the MVB network segment 2 has conflict response, and stop transmitting to other MVB network segments. And the MVB repeater records the record of the transmission from the MVB segment 1 to the MVB segment 2.
According to the phenomenon description of the two situations, the train control and management system can determine the MVB network segment where the equipment with the MVB network address conflict is located according to the MVB slave frame fault network segment recorded by the MVB repeater and the network segment of the slave frame response traced according to the transmission direction of the MVB signal. If there is a slave frame response failure recorded by the adjacent MVB repeater and there is no record of the slave frame transmission direction, it can be determined that the device generating the MVB network port address collision is in the MVB slave frame response failure network segment. If a slave frame response fault is recorded in an adjacent MVB repeater and a slave frame transmission path is recorded, the starting MVB segment propagated from the frame can be judged according to the slave frame transmission path records recorded by all the MVB repeaters in the MVB network, and the device with the MVB network port address conflict can be determined to be in the starting MVB segment propagated from the frame.
Specifically, in the above embodiment, the MVB repeater may include: the information judged from the frame response data and the conflict response in the MVB repeater can be transmitted to a train control and management system through the MVB network, the Ethernet network or other communication networks of the train. Wherein, other communication networks of the train CAN be 485 communication, CAN communication and the like.
In summary, the present invention can realize that when the port address conflicts occur in the MVB network, the train control and management system can diagnose and locate the position of the device with the port address conflicts by responding to the information such as the failure network segment and the like from the frame transmission path and the frame response from the MVB recorded by the MVB repeater, thereby reducing the troubleshooting time and improving the reliability and the availability of the MVB communication network.
As shown in fig. 6, which is a flowchart of a method in embodiment 1 of a method for diagnosing and locating an address conflict of an MVB network port, the method is applied to a device for diagnosing and locating an address conflict of an MVB network port, as shown in fig. 1, the device for diagnosing and locating an address conflict of an MVB network port includes: the train control and management system comprises MVB relays connected among all MVB network segments of the train and the train control and management system; the method may comprise the steps of:
s601, analyzing signals of MVB network segments at two ends through an MVB repeater, judging whether a slave frame data response or a conflict response exists, and transmitting a response judgment result to a train control and management system;
s602, diagnosing and positioning the MVB network port address conflict through the train control and management system based on the received response judgment results of all the MVB network segments at the two ends of the MVB repeater, and outputting a diagnosis and positioning result.
The working principle of the method for diagnosing and positioning address conflicts of the MVB network ports disclosed in this embodiment is the same as that of the apparatus for diagnosing and positioning address conflicts of the MVB network ports shown in fig. 1, and is not described herein again.
As shown in fig. 7, a flowchart of a method in embodiment 2 of a method for diagnosing and locating an address conflict of an MVB network port disclosed in the present invention is shown, where the method is applied to a device for diagnosing and locating an address conflict of an MVB network port, and as shown in fig. 2, the device for diagnosing and locating an address conflict of an MVB network port includes: the train control and management system comprises MVB relays connected among all MVB network segments of the train and the train control and management system; wherein, train control and management system includes: the device comprises a first judgment module, a first determination module, a second judgment module, a second determination module and a third determination module; the method may comprise the steps of:
s701, analyzing signals of MVB network segments at two ends through an MVB repeater, judging whether a slave frame data response or a conflict response exists, and transmitting a response judgment result to a train control and management system;
s702, judging whether a slave frame response fault exists or not based on response judgment results of MVB network segments at two ends of all MVB relays, if so, entering S703:
s703, determining a failure MVB network segment;
s704, determining whether there is a slave frame transmission path based on the slave frame transmission records of all MVB relays, if not, going to S705, if yes, going to S706:
s705, determining that the address conflict devices are all in the MVB network segment with the slave frame response fault;
s706, based on all the slave frame transmission paths recorded by the MVB repeater, the slave frame starting MVB segment is sent, and each address conflict device is determined to be in the slave frame transmission starting MVB segment.
The working principle of the method for diagnosing and positioning address conflicts of the MVB network ports disclosed in this embodiment is the same as that of the apparatus for diagnosing and positioning address conflicts of the MVB network ports shown in fig. 2, and is not described herein again.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A diagnosis positioning device for MVB network port address conflict is characterized by comprising: the train control and management system comprises MVB relays connected among all MVB network segments of the train and the train control and management system; wherein:
the MVB repeater analyzes signals of MVB network segments at two ends, judges whether a slave frame data response or a conflict response exists or not, and transmits a response judgment result to the train control and management system;
and the train control and management system diagnoses and positions the address conflict of the MVB network ports based on the received response judgment results of all the MVB network segments at the two ends of the MVB repeater and outputs a diagnosis and positioning result.
2. The apparatus of claim 1, wherein the train control and management system comprises:
the first judgment module is used for judging whether a slave frame response fault exists or not based on the response judgment results of the MVB network segments at the two ends of all the MVB repeaters;
the first determining module is used for determining a failure MVB network segment when the slave frame response failure is judged based on the first judging module;
a second judging module, configured to judge whether there is a slave frame transmission path based on the slave frame transmission records of all MVB relays;
a second determining module, configured to determine that the address collision devices are all in the MVB segment with slave frame response failure when it is determined that there is no slave frame transmission path based on the second determining module;
and a third determining module, configured to trace back a slave frame start sending MVB segment based on the slave frame transmission paths recorded by all the MVB repeaters when a slave frame transmission path is determined based on the second determining module, and determine that each address collision device is in the slave frame transmission start MVB segment.
3. The apparatus of claim 1, wherein the MVB repeater comprises: an MVB network transmission module; wherein:
and the MVB network transmission module is used for transmitting the response judgment result of the MVB network segments at the two ends of the MVB repeater to the train control and management system through the MVB network.
4. The apparatus of claim 1, wherein the MVB repeater comprises: an Ethernet communication module; wherein:
and the Ethernet communication module is used for transmitting the response judgment result of the MVB network segments at the two ends of the MVB repeater to the train control and management system through an Ethernet network.
5. The apparatus of claim 1, wherein the MVB repeater comprises: other train communication modules; wherein:
and the other train communication module is used for transmitting the response judgment result of the MVB network segments at the two ends of the MVB repeater to the train control and management system through other train communication networks.
6. A diagnosis positioning method for MVB network port address conflict is characterized in that the diagnosis positioning method is applied to a diagnosis positioning device for MVB network port address conflict, and the diagnosis positioning device for MVB network port address conflict comprises the following steps: the train control and management system comprises MVB relays connected among all MVB network segments of the train and the train control and management system; the method comprises the following steps:
analyzing signals of MVB network segments at two ends through the MVB repeater, judging whether a slave frame data response or a conflict response exists, and transmitting a response judgment result to the train control and management system;
and diagnosing and positioning the address conflict of the MVB network ports by the train control and management system based on the received response judgment results of all the MVB network segments at the two ends of the MVB repeater, and outputting a diagnosis and positioning result.
7. The method of claim 6, wherein the diagnosing and positioning the address conflict of the MVB network ports by the train control and management system based on the received response judgment results of all MVB network segments at both ends of the MVB repeater, and outputting the diagnosing and positioning results comprises:
and judging whether a slave frame response fault exists or not based on response judgment results of all MVB network segments at two ends of the MVB repeater, if so, then:
determining a failure MVB network segment;
and judging whether a slave frame transmission path exists or not based on the slave frame transmission records of all the MVB relays, if not, determining that the address conflict devices are all in the MVB network segment with the slave frame response fault, and if so,:
and based on the slave frame transmission paths recorded by all the MVB relays, tracing back a slave frame starting transmission MVB network segment, and determining that each address conflict device is in the slave frame transmission starting MVB network segment.
8. The method of claim 6, wherein said transmitting a response determination to said train control and management system comprises:
and transmitting the response judgment result of the MVB network segments at the two ends of the MVB repeater to the train control and management system through the MVB network.
9. The method of claim 6, wherein said transmitting a response determination to said train control and management system comprises:
and transmitting the response judgment result of the MVB network segments at the two ends of the MVB repeater to the train control and management system through an Ethernet network.
10. The method of claim 6, wherein said transmitting a response determination to said train control and management system comprises:
and transmitting the response judgment result of the MVB network segments at the two ends of the MVB repeater to the train control and management system through other train communication networks.
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