CN112751720A - Train backbone network system, fault detection method and storage medium - Google Patents
Train backbone network system, fault detection method and storage medium Download PDFInfo
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Abstract
The invention discloses a train backbone network system, a fault detection method and a storage medium, wherein the system comprises train backbone network equipment, a repeater and a communication server, the repeater is connected between the two train backbone network equipment, so as to form at least two transmission links, the communication server is respectively connected with the train backbone network equipment and the repeater, the train backbone network equipment arranged at one end of the train respectively sends detection signals to the train backbone network equipment arranged at the other end of the train through each transmission link, so that the train backbone network equipment at the other end can confirm whether the transmission link is abnormal or not through the condition that each transmission link receives the detection signal, the repeater sends a diagnosis data message to the communication server, and when the transmission link is abnormal, the communication server determines whether the repeater is abnormal or not according to the diagnosis data message so as to quickly determine the abnormal equipment when the transmission link is abnormal.
Description
Technical Field
The invention relates to the field of train signal detection, in particular to a train backbone network system, a fault detection method and a storage medium.
Background
The train is composed of a plurality of carriages, generally 8 carriages of a single train, each carriage is about 25 meters, two or more single trains are usually connected in series, and the distance between two ends of the connected trains is usually far. Currently, the reliable communication distance of the ethernet is about 100 meters at most, so that a repeater is required to be connected in series on a train backbone network link between head and tail trains to forward data through the repeater. However, when the link of the train backbone network is abnormal, data cannot be transmitted.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: a train backbone network system, a fault detection method and a storage medium are provided, which include a plurality of transmission links and detect the plurality of transmission links to transmit communication data for the normal transmission links according to the detection result.
In order to solve the above technical problems, the embodiments of the present invention provide the following technical solutions:
in a first aspect, the present invention provides a train backbone system associated with a communication server, the train backbone system including a repeater and two train backbone devices:
the two train backbone network devices are respectively arranged at two ends of a train, the repeater is connected between the two train backbone network devices to form at least two transmission links, and the communication server is respectively connected with the train backbone network devices and the repeater;
the train backbone network equipment arranged at one end of the train is configured to respectively send detection signals to the train backbone network equipment arranged at the other end of the train through each transmission link, so that the condition that the train backbone network equipment at the other end receives the detection signals through each transmission link confirms whether the transmission link is abnormal or not;
the repeater is configured to send a diagnostic data packet to the communication server, and the communication server is further configured to determine whether the repeater is abnormal according to the diagnostic data packet when a transmission link is abnormal.
Optionally, in the train backbone system, the train backbone equipment disposed at one end of the train is configured to send a detection signal to the train backbone equipment disposed at the other end of the train through each transmission link every first period by using a train topology discovery protocol, so that the train backbone equipment at the other end confirms whether the transmission link is abnormal through a condition that each transmission link receives the detection signal, wherein the transmission link is confirmed to be normal if the detection signal is received through the transmission link, and the transmission link is confirmed to be abnormal if the detection signal is not received through the transmission link.
Optionally, in the train backbone network system, a plurality of repeaters are connected in series through at least two groups of interfaces and then connected between at least two groups of signal transmission ports of the two train backbone network devices to form at least two corresponding transmission links, and each group of transmission interfaces of the repeaters correspond to one group of signal transmission ports of the train backbone network devices respectively.
Optionally, in the train backbone network system, the diagnostic data packet includes a first diagnostic data packet and a second diagnostic data packet;
the repeater is further configured to periodically send a status detection message to an adjacent repeater through each set of interfaces, send the first diagnostic data message to the communication server before sending the status detection message, and send the second diagnostic data message to the communication server after sending the status detection message, wherein the first and second diagnostic data messages respectively include a CPU heartbeat, an interface status, and an interface error packet count of the repeater;
the communication server is further configured to determine whether an interface group corresponding to a transmission link in the repeater is faulty according to the first diagnostic data packet and the second diagnostic data packet when the transmission link is abnormal.
Optionally, in the train backbone network system, the diagnostic data packet includes a third diagnostic data packet;
the relay, when further configured to transmit the third diagnostic data message to the communication server upon receiving a status detection message transmitted by an adjacent relay;
the communication server is further configured to determine whether an interface group corresponding to a transmission link in the relay is faulty according to the first diagnostic data packet, the second diagnostic data packet, and the third diagnostic data packet when the transmission link is abnormal.
Optionally, in the train backbone network system, the train backbone network device includes a first backbone network node and a second backbone network node, and the first backbone network node and the second backbone network node respectively include at least two sets of signal transmission ports;
each group of signal transmission ports of the first backbone network node are correspondingly connected with one group of interfaces of the repeater through one group of signal transmission ports of the second backbone network node.
Optionally, in the train backbone network system, the first backbone network node is further configured to send a fourth diagnostic data packet and a fifth diagnostic data packet to the communication server before and after sending the second status data packet to the second backbone network node periodically through the packet network;
when the transmission link is abnormal, the communication server is further configured to determine whether the first backbone network node is abnormal according to the fourth diagnostic data and the fifth diagnostic data, and send node configuration information to the first backbone network node and the second backbone network node respectively when the first backbone network node is not abnormal, so that the first backbone network node takes the first backbone network node as a backbone network node according to the node configuration information, and the second backbone network node takes the second backbone network node as a hot backup backbone network node according to the node configuration information.
Optionally, in the train backbone system, when the first backbone network node is abnormal, the communication server is further configured to send node abnormality warning information to the first backbone network node and the second backbone network node, so that the second backbone network node uses the node abnormality warning information as a backbone network node according to the node abnormality warning information, and the first backbone network makes a hot backup of the backbone network node according to the node abnormality warning information.
Optionally, in the train backbone network system, the train backbone network system further includes a display device, the display device is electrically connected to the communication server, and the display device is configured to display a working state of the transmission link and display whether the relay is faulty, where the working state includes a normal state or an abnormal state.
In a second aspect, the present invention further provides a fault detection method, applied to the communication server in the above-mentioned train backbone network system, where the method includes:
acquiring a diagnostic data message sent by a repeater;
and when the transmission link between the two train backbone network devices is abnormal, determining whether the repeater is abnormal according to the diagnosis data message.
In a third aspect, the present invention also provides a storage medium storing a computer program which, when executed by one or more processors, implements a fault detection method as described above.
Compared with the prior art, one or more embodiments in the above scheme can have the following advantages or beneficial effects:
the embodiment of the invention provides a train backbone network system, a fault detection method and a storage medium, wherein the backbone network system comprises train backbone network equipment respectively arranged at two ends of a train, a repeater connected between the two train backbone network equipment to form at least two transmission links, and a communication server respectively connected with the two train backbone network equipment and the repeater, the train backbone network equipment arranged at one end of the train is configured to respectively send a detection signal to the train backbone network equipment arranged at the other end of the train through each transmission link so that the train backbone network equipment at the other end confirms whether the transmission link is abnormal or not through the condition that the detection signal is received by each transmission link, the communication server is further configured to determine whether the repeater is abnormal or not according to a diagnosis data message when the transmission link is abnormal, the two pieces of train backbone network equipment transmit communication data through the normal transmission link so as to realize the detection of the plurality of transmission links, and transmit the communication data for the normal transmission link through the detection result, thereby ensuring the reliability of communication data transmission.
Drawings
The scope of the present disclosure may be better understood by reading the following detailed description of exemplary embodiments in conjunction with the accompanying drawings. Wherein the included drawings are:
fig. 1 shows an application block diagram of a train backbone network system provided in an embodiment one;
fig. 2 shows a schematic flow chart of a fault detection method according to the second embodiment.
Icon: 100-train backbone network system; 110-train backbone equipment; 112-a first backbone network node; 114-a second backbone network node; 120-a repeater; 200-a communication server; 300-display device.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the following will describe in detail an implementation method of the present invention with reference to the accompanying drawings and embodiments, so that how to apply technical means to solve the technical problems and achieve the technical effects can be fully understood and implemented.
Example one
Referring to fig. 1, fig. 1 is a block diagram of an application of a train backbone system 100 according to an embodiment, where the train backbone system 100 is associated with a communication server, and the train backbone system 100 includes two train backbone devices 110 and a repeater 120.
The two train backbone network devices 110 are respectively disposed at two ends of a train, the repeater 120 is connected between the two train backbone networks to form at least two transmission links, and the communication server 200 is respectively connected to the two train backbone network devices 110 and the repeater 120.
The train backbone network equipment 110 disposed at one end of the train is configured to send a detection signal to the train backbone network equipment 110 disposed at the other end of the train through each transmission link, respectively, so that the train backbone network equipment 110 at the other end confirms whether the transmission link is abnormal or not through the condition that each transmission link receives the detection signal.
The repeater 120 is configured to send a diagnostic datagram to the communication server 200, and the communication server 200 is further configured to determine whether an abnormality occurs in the repeater 120 based on the diagnostic datagram when there is a transmission link abnormality.
It should be noted that, in this embodiment, in order to enable the repeater 120 to be connected between two train backbone network devices 110 to form at least two links, in this embodiment, each train backbone network device 110 includes at least two signal transmission ports, the repeater 120 includes at least two groups of interfaces, each group of interfaces of the repeater 120 corresponds to one signal transmission port of each train backbone network device 110, and the repeater 120 is connected between two train backbone network devices 110 in series through the at least two groups of interfaces to form at least two transmission links.
In this embodiment, in order to further ensure the reliability of the link detection, the train backbone network device 110 disposed at each end of the train sends a detection signal to the train backbone network device 110 at the opposite end through the interface group of the repeater 120 corresponding to each link, so that the train backbone network device 110 at the opposite end determines the abnormal condition of each link according to the receiving condition of the detection signal transmitted by each link.
The train backbone network equipment 110 arranged at each end of the train respectively sends the detection signals to the train backbone network equipment 110 at the opposite end, so that when the train backbone network equipment 110 at both ends of the same transmission link can receive the detection signals transmitted by the train backbone network transmission equipment at the opposite end, the transmission link is determined to be normal, and the condition that the transmission link can only realize normal unidirectional transmission and possibly has abnormal communication transmission is avoided.
The above-mentioned manner may be that each end of the train backbone network device 110 respectively adopts a train topology discovery protocol (TTDP protocol) to send a detection signal (TTDP hello frame) to the opposite end of the train backbone network device 110 through each transmission link, when the opposite end of the train backbone network device 110 can receive the detection signal transmitted through each transmission link, it may be determined that the transmission link is normal, and if the detection signal transmitted through the transmission link is not received, it may be determined that the transmission link is abnormal.
In order to further implement real-time monitoring on each transmission link to ensure reliability of transmission communication data during train operation, in this embodiment, the mode in which the train backbone network device 110 disposed at one end sends the detection signal to the train backbone network device 110 disposed at the other end may be sending according to a first preset period, where the first preset period may be, but is not limited to, one second, two seconds, or five seconds, and is not specifically limited herein, and the mode may be set according to actual requirements.
Through the above arrangement, the train backbone network equipment 110 at the two ends of the train can transmit the communication data through the at least two transmission links, and can detect whether the transmission links in the at least two transmission links are abnormal, so as to transmit the communication data through the transmission links with the detection result being normal, thereby ensuring the reliability of the communication data transmission, and in addition, the communication server 200 detects the diagnostic data message sent by the repeater 120 when the transmission links are abnormal, so as to confirm whether the repeater 120 is abnormal.
The diagnostic data packet is encapsulated with the CPU heartbeat, the interface state, and the interface error packet number of the repeater 120 during data transmission.
The number of the repeaters 120 arranged in the train backbone network system 100 may be one or multiple, and since the length of the train exceeds 200 meters in a normal case, in this embodiment, the number of the repeaters 120 is multiple, the multiple repeaters 120 are respectively connected in series through at least two groups of interfaces and then connected between at least two groups of signal transmission ports of the two train backbone network devices 110 to form at least two corresponding transmission links, and each group of transmission interfaces of the repeaters 120 respectively corresponds to one group of signal transmission ports of the train backbone network devices 110.
In order to improve the reliability of the detection result of the abnormal state detection performed on the repeater 120, in this embodiment, the diagnostic data packet includes a first diagnostic data packet and a second diagnostic data packet.
The repeater 120 is further configured to periodically send a status detection message to an adjacent repeater 120 through each group of interfaces, send the first diagnostic data message to the communication server 200 before sending the status detection message, and send the second diagnostic data message to the communication server 200 after sending the status detection message, wherein the first and second diagnostic data messages respectively include a CPU heartbeat, an interface status, and an interface packet error count of the repeater 120.
The communication server 200 is further configured to determine whether an interface group corresponding to a transmission link in the relay 120 is faulty according to the first diagnostic datagram and the second diagnostic datagram when the transmission link is abnormal.
The method for determining whether the interface group corresponding to the transmission link in the repeater 120 is faulty may be that whether the CPU heartbeats, the interface states, and the interface packet error number respectively included in the first diagnostic data packet and the second diagnostic data packet corresponding to the transmission link in the repeater 120 are consistent, and if so, it may be determined that the interface group corresponding to the transmission link in the repeater 120 is capable of sending diagnostic packets to other devices, and a signal sending function of the interface group of the repeater 120 is normal, otherwise, it is abnormal.
To further confirm whether the interface set of the repeater 120 is abnormal, in this embodiment, the diagnostic data packet includes a third diagnostic data packet.
The relay 120, when further configured to send the third diagnostic data packet to the communication server 200 upon receiving a status detection packet sent by an adjacent relay 120.
The communication server 200 is further configured to determine whether an interface group corresponding to a transmission link in the relay 120 is faulty according to the first diagnostic data packet, the second diagnostic data packet, and the third diagnostic data packet when the transmission link is abnormal.
It should be noted that, when the relay 120 can receive the message sent by the adjacent relay 120, it may be confirmed that the receiving function of the interface group of the relay 120 is normal, and if the message cannot be received, it may be abnormal.
Since the communication server 200 can also confirm the receiving function and the transmitting function of the interface group of another repeater 120, it is possible to determine whether or not the interface group of the repeater 120 has a failure, based on the case of the interface group transmitting/receiving function of one repeater 120 and the transmitting/receiving function of the interface group of another repeater 120 adjacent to the repeater 120.
It can be understood that when a transmission link is abnormal, it may be that an abnormality occurs in the repeater 120, and it may also be that an abnormality occurs in the train backbone equipment 110, and therefore, to ensure the accuracy of the train backbone system 100 in transmitting communication data and to ensure the reliability of the train backbone equipment 110, in this embodiment, the train backbone equipment 110 includes a first backbone node 112 and a second backbone node 114, the first backbone node 112 and the second backbone node 114 respectively include at least two sets of signal transmission ports, and each set of signal transmission ports of the first backbone node 112 is correspondingly connected to one set of interfaces of the repeater 120 through one set of signal transmission ports of the second backbone node 114 respectively.
The mode of the train backbone equipment 110 sending the communication data may be that the first backbone node 112 and the second backbone node 114 in the train backbone equipment 110 send the communication data respectively, or that any one of the first backbone node 112 and the second backbone node 114 sends the communication data, which is not limited specifically herein.
In order to ensure that the communication data sent by the train backbone equipment 110 at one end can be received by the train backbone equipment 110 at the other end, in this embodiment, the first backbone node 112 is further configured to periodically send a fourth diagnostic data message and a fifth diagnostic data message to the communication server 200 before and after sending the second status data message to the second backbone node 114 through the networking.
When the transmission link is abnormal, the communication server 200 is further configured to determine whether the first backbone network node 112 is abnormal according to the fourth diagnostic data and the fifth diagnostic data, and send node configuration information to the first backbone network node 112 and the second backbone network node 114 respectively when the first backbone network node 112 is not abnormal, so that the first backbone network node 112 is used as a backbone network node according to the node configuration information, and the second backbone network node 114 is used as a hot backup backbone network node according to the node configuration information, and transmits communication data through the backbone network node.
Further, in order to ensure the accuracy of data transmission of the train backbone equipment 110 when the first backbone network node 112 in the train backbone equipment 110 is abnormal, in this embodiment, when the first backbone network node 112 is abnormal, the communication server 200 is further configured to respectively send node abnormality alarm information to the first backbone network node 112 and the second backbone network node 114, so that the second backbone network node 114 uses the node abnormality alarm information as a backbone network node according to the node abnormality alarm information, and the second backbone network node 114 uses the node abnormality alarm information as a hot backup backbone network node according to the node abnormality alarm information, and transmits communication data through the backbone network node.
In order to facilitate a user to check an abnormal transmission link and cause an abnormal device to occur in the transmission link when the transmission link is abnormal, in this embodiment, the train backbone network system 100 further includes a display device 300, the display device 300 is electrically connected to the communication server 200, and the display device 300 is configured to display a working state of the transmission link, where the working state includes a normal state or an abnormal state. It is understood that the display device 300 is also used to display the train backbone device 110 and/or the repeater 120 where an abnormality occurs.
In this embodiment, the train backbone system 100 includes two train backbone devices 110 and a plurality of repeaters 120, and the repeaters 120 are connected between the two train backbone devices 110 by trunk dual-line redundancy to form two transmission links of an ethernet train backbone network, and the two train backbone devices 110 construct, update, and maintain a network topology through a TTDP protocol (train topology discovery protocol). The train backbone network device 110 detects whether the link is normal by periodically transmitting a TTDP hello frame (detection signal) using a TTDP protocol (train topology discovery protocol). If the link is detected to be abnormal, the transmission link with the fault is abandoned, and all communication data are transmitted from the normal transmission link, so that the normal communication of the train backbone network equipment 110 at the two ends of the train is ensured.
When there is a transmission link problem, if ttdp related protocol frames such as ttdp hello frames on the transmission link of the train backbone equipment 110 at the end with the problem cannot be transmitted to the train backbone equipment 110 at the other end, the train backbone equipment 110 at the other end does not receive the frames after timeout, which considers that the link has the problem, and thus the corresponding port is set to a block state. When the train backbone network device 110 can receive the ttdp related frame of the opposite train backbone network device 110, the port is reopened, and the port status is forward. When the port is in the block state, the train backbone device 110 may send and receive a ttdp hello frame. When one link is abnormal, the communication of the train backbone equipment 110 is normal, and at this time, the train backbone equipment 110 does not need to make state switching.
When the link is abnormal, the communication server 200 determines whether the repeater 120 is abnormal according to the condition of the repeater 120 receiving the status data packet, the content of the status data packet, port loading, CPU heartbeat and other status data, and displays the abnormal status on the display device 300 when the repeater 120 is abnormal.
Example two
Please refer to fig. 2, the present invention further provides a fault detection method applicable to the communication server 200 in the first embodiment, where when the fault detection method is applied to the communication server 200, the communication server 200 is connected to the train backbone equipment 110 and the repeater 120, respectively, the repeater 120 is connected between the two train backbone equipments 110 to form at least two transmission links, and the train backbone equipment 110 disposed at one end of the train is configured to send a detection signal to the train backbone equipment 110 disposed at the other end of the train through each transmission link, respectively, so that the train backbone equipment 110 at the other end confirms, through the condition that each transmission link receives the detection signal, whether the transmission link is abnormal. When receiving the acknowledgement information, the communication server 200 executes a failure detection method, and the failure detection method includes the steps of:
step S10: the diagnostic data message sent by the repeater 120 is obtained.
Step S20: and when the transmission link between the two train backbone network devices 110 is abnormal, determining whether the repeater 120 is abnormal according to the diagnostic data message.
By adopting the steps, whether the repeater 120 is abnormal or not can be determined when the transmission link is abnormal, and further, when the repeater 120 is abnormal, the repeater can be replaced or overhauled in time, so that the reliability of data transmission of the train backbone network system 100 can be guaranteed.
Wherein the diagnostic data packet may include a first diagnostic data packet and a second diagnostic data packet, and the step S10 includes:
acquiring a state detection message periodically sent by the repeater 120 to an adjacent repeater 120 through each group of interfaces, a first diagnostic data message sent before the state detection message is sent, and a second diagnostic data message sent after the state detection message is sent, wherein the first diagnostic data message and the second diagnostic data message respectively include the CPU heartbeat, the interface state and the interface error packet number of the repeater 120;
the step S20 includes: determining whether an interface group in the repeater 120 is faulty according to the first diagnostic datagram and the second diagnostic datagram.
Optionally, in this embodiment, to further confirm whether the relay 120 is faulty, the diagnostic data packet further includes a third packet, and the step S10 further includes: obtaining a third diagnostic data message sent when the relay 120 receives the status detection message sent by the adjacent relay 120;
the step S20 further includes: and determining whether an interface group corresponding to the transmission link in the repeater 120 is faulty according to the first diagnostic data packet, the second diagnostic data packet, and the third diagnostic data packet.
For the detailed description of the step S10 and the step S20, reference may be made to the description of the train backbone network system 100 in the first embodiment, and details are not repeated here.
EXAMPLE III
The present invention further provides a computer-readable storage medium, such as a flash memory, a hard disk, a multimedia card, a card-type memory (e.g., SD or DX memory, etc.), a Random Access Memory (RAM), a Static Random Access Memory (SRAM), a read-only memory (ROM), an electrically erasable programmable read-only memory (EEPROM), a programmable read-only memory (PROM), a magnetic memory, a magnetic disk, an optical disk, a server, an App application mall, etc., where a computer program is stored, where the computer program may be executed by one or more processors and may implement the method steps described in the second embodiment.
To sum up, the embodiment of the present invention provides a train backbone system 100, a fault detection method and a storage medium, the system includes train backbone equipment 110, a repeater 120 and a communication server 200, and the repeater 120 is connected between two train backbone equipment 110 to form at least two transmission links, the communication server 200 is connected to the train backbone equipment 110 and the repeater 120 respectively, the train backbone equipment 110 disposed at one end of a train sends a detection signal to the train backbone equipment 110 disposed at the other end of the train through each transmission link respectively, so that the train backbone equipment 110 at the other end confirms whether the transmission link is abnormal through the condition that each transmission link receives the detection signal, the repeater 120 sends a diagnostic data message to the communication server 200, when the transmission link is abnormal, the communication server 200 determines whether the repeater 120 is abnormal according to the diagnostic data message, to quickly determine the device in which the abnormality occurs when the transmission link is abnormal.
Although the embodiments of the present invention have been described above, the above description is only for the convenience of understanding the present invention, and is not intended to limit the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (11)
1. A train backbone system associated with a communication server, the train backbone system comprising a repeater and two train backbone devices:
the two train backbone network devices are respectively arranged at two ends of a train, the repeater is connected between the two train backbone network devices to form at least two transmission links, and the communication server is respectively connected with the train backbone network devices and the repeater;
the train backbone network equipment arranged at one end of the train is configured to respectively send detection signals to the train backbone network equipment arranged at the other end of the train through each transmission link, so that the condition that the train backbone network equipment at the other end receives the detection signals through each transmission link confirms whether the transmission link is abnormal or not;
the repeater is configured to send a diagnostic data packet to the communication server, and the communication server is further configured to determine whether the repeater is abnormal according to the diagnostic data packet when a transmission link is abnormal.
2. The train backbone system according to claim 1, wherein the train backbone equipment at one end of the train is configured to send a detection signal to the train backbone equipment at the other end of the train through each of the transmission links at a first interval using a train topology discovery protocol, so that the train backbone equipment at the other end of the train confirms whether the transmission link is abnormal by receiving the detection signal through each of the transmission links, wherein the transmission link is confirmed to be normal if the detection signal is received through the transmission link, and the transmission link is confirmed to be abnormal if the detection signal is not received through the transmission link.
3. The train backbone system according to claim 1, wherein the number of the repeaters is plural, the plural repeaters are respectively connected between at least two sets of signal transmission ports of the two train backbone equipments in series through at least two sets of interfaces to form at least two corresponding transmission links, and each set of transmission interfaces of the repeaters respectively corresponds to one set of signal transmission ports of the train backbone equipments.
4. The train backbone network system of claim 3, wherein the diagnostic data messages comprise a first diagnostic data message and a second diagnostic data message;
the repeater is further configured to periodically send a status detection message to an adjacent repeater through each set of interfaces, send the first diagnostic data message to the communication server before sending the status detection message, and send the second diagnostic data message to the communication server after sending the status detection message, wherein the first and second diagnostic data messages respectively include a CPU heartbeat, an interface status, and an interface error packet count of the repeater;
the communication server is further configured to determine whether an interface group corresponding to a transmission link in the repeater is faulty according to the first diagnostic data packet and the second diagnostic data packet when the transmission link is abnormal.
5. The train backbone network system of claim 4, wherein the diagnostic data messages comprise a third diagnostic data message;
the relay, when further configured to transmit the third diagnostic data message to the communication server upon receiving a status detection message transmitted by an adjacent relay;
the communication server is further configured to determine whether an interface group corresponding to a transmission link in the relay is faulty according to the first diagnostic data packet, the second diagnostic data packet, and the third diagnostic data packet when the transmission link is abnormal.
6. The train backbone system of claim 1, wherein the train backbone equipment comprises a first backbone node and a second backbone node, the first backbone node and the second backbone node comprising at least two sets of signal transmission ports, respectively;
each group of signal transmission ports of the first backbone network node are correspondingly connected with one group of interfaces of the repeater through one group of signal transmission ports of the second backbone network node.
7. The train backbone system of claim 6, wherein the first backbone node is further configured to periodically send a fourth diagnostic data message and a fifth diagnostic data message to the communication server before and after sending a second status data message to the second backbone node over the marshalling network;
when the transmission link is abnormal, the communication server is further configured to determine whether the first backbone network node is abnormal according to the fourth diagnostic data and the fifth diagnostic data, and send node configuration information to the first backbone network node and the second backbone network node respectively when the first backbone network node is not abnormal, so that the first backbone network node takes the first backbone network node as a backbone network node according to the node configuration information, and the second backbone network node takes the second backbone network node as a hot backup backbone network node according to the node configuration information.
8. The train backbone system according to claim 7, wherein when the first backbone node is abnormal, the communication server is further configured to send node abnormality alarm information to the first backbone node and a second backbone node, respectively, so that the second backbone node takes the node abnormality alarm information as a backbone node according to the node abnormality alarm information, and the first backbone node takes the node abnormality alarm information as a hot backup backbone node according to the node abnormality alarm information.
9. The train backbone system according to claim 1, further comprising a display device electrically connected to the communication server, the display device being configured to display an operating status of the transmission link and to display whether the repeater is faulty, wherein the operating status includes a normal status or an abnormal status.
10. A fault detection method applied to a communication server, wherein the communication server is associated with the train backbone system according to any one of claims 1 to 9, the method comprising:
acquiring a diagnostic data message sent by a repeater;
and when the transmission link between the two train backbone network devices is abnormal, determining whether the repeater is abnormal according to the diagnosis data message.
11. A storage medium storing a computer program, wherein the computer program, when executed by one or more processors, implements a fault detection method as claimed in claim 10.
Priority Applications (1)
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