CN112737859A - Vehicle-mounted flow auditing and alarming linkage system and flow abnormity judging method - Google Patents
Vehicle-mounted flow auditing and alarming linkage system and flow abnormity judging method Download PDFInfo
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- CN112737859A CN112737859A CN202110001854.1A CN202110001854A CN112737859A CN 112737859 A CN112737859 A CN 112737859A CN 202110001854 A CN202110001854 A CN 202110001854A CN 112737859 A CN112737859 A CN 112737859A
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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
- 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
- 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
- H04L41/069—Management of faults, events, alarms or notifications using logs of notifications; Post-processing of notifications
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Abstract
The invention relates to a vehicle-mounted flow auditing and alarming linkage system, which comprises a vehicle-mounted Ethernet switch, a driver station display screen, an Ethernet concentrator and Ethernet repeaters, wherein the driver station display screen and the Ethernet concentrator are simultaneously deployed in a driver cab of a head car and a tail car; the vehicle-mounted Ethernet switch is connected to the Ethernet concentrator of the marshalling through an out-of-band management port, the Ethernet switch of the carriage far away from the cab of the head-tail vehicle in the marshalling is connected to the Ethernet concentrator of the marshalling after being relayed by the Ethernet repeater deployed in the marshalling, and the display screen of the driver station is connected to the Ethernet concentrator of the same cab through an Ethernet interface, so that the display screen of the driver station displays vehicle current-carrying capacity audit information. Meanwhile, the invention also provides a corresponding flow abnormity judgment method to monitor the flow abnormity condition of each device in the vehicle network in real time and provide flow audit information.
Description
Technical Field
The invention belongs to the technical field of vehicle-mounted networks, and particularly relates to a vehicle-mounted flow auditing and alarming linkage system and a flow abnormity judgment method.
Background
With the popularization and application of industrial ethernet in the field of rail vehicles, technologies such as large bandwidth, high speed, intelligent transmission and the like are promoted for a rail vehicle-mounted network, and meanwhile, due to the openness and universality of the industrial ethernet technology, the safety problem of the industrial ethernet technology in the application of the vehicle-mounted network increasingly draws attention in the industry, particularly in the aspect of flow audit.
However, in the current vehicle-mounted network, the flow of the vehicle-mounted equipment is not monitored, and when abnormal flow faults occur, the fault point cannot be accurately positioned; flow control is generally carried out through the speed limit of the port of the switch, but the mode is passive defense and cannot feed back the working state of the speed limit of the port of the switch; and the port speed limit can only limit the flow of the equipment below a threshold value, and the port speed limit does not work for abnormal conditions of the flow smaller than the flow threshold value. Meanwhile, due to the difference of functions and performances of products of various subsystem manufacturers, system logs of most of equipment cannot be subjected to accurate flow statistics and feedback, and therefore a vehicle operator cannot obtain flow audit information.
Therefore, in order to solve the above problems, the present invention provides a vehicle-mounted network traffic auditing and alarm linkage system and a method for determining traffic abnormality, so as to monitor the traffic state of each network device in real time.
Disclosure of Invention
The invention provides a vehicle-mounted flow auditing and alarming linkage system and a flow abnormity judging method aiming at the problem that the existing vehicle-mounted network is insufficient in equipment flow monitoring, so that the flow condition of each network equipment can be monitored in real time and effective flow abnormity judgment can be carried out.
In order to achieve the above object, the present invention provides a vehicle-mounted traffic auditing and warning linkage system, which comprises: the system comprises a vehicle-mounted Ethernet switch, a driver platform display screen, an Ethernet concentrator and an Ethernet repeater;
the driver platform display screen and the Ethernet concentrator are simultaneously deployed in a driver cab of a head-tail vehicle, the vehicle-mounted Ethernet switch is deployed in each carriage, and at least one Ethernet repeater is deployed in each group;
the vehicle-mounted switch is provided with an out-of-band management port, and the driver platform display screen, the Ethernet concentrator and the Ethernet repeater are all provided with a plurality of Ethernet interfaces;
the vehicle-mounted Ethernet switch is connected to the Ethernet hub of the marshalling through an out-of-band management port, the Ethernet switch of the carriage far away from the cab of the head-tail vehicle in the marshalling is connected to the Ethernet hub of the marshalling after being relayed through the Ethernet repeater deployed in the marshalling, and the display screen of the driver station is connected to the Ethernet hub of the same cab through an Ethernet interface.
Preferably, one ethernet repeater is deployed in each consist at an intermediate car location in each consist.
Preferably, the real-time port rate statistics of the switching chip are obtained on the vehicle-mounted ethernet switch in a software manner and are sent to the driver station display screen of the group.
Preferably, the ethernet repeater is an ethernet repeater device, and by performing physical layer repeating and forwarding on ethernet signals, an ethernet switch of a car far away from the cab in the present group can send signals to a display screen of the cab in the present group.
Preferably, the ethernet hub is an ethernet relay and forwarding device, and the display screen of the driver station in the group receives the ethernet physical layer signal by performing physical layer relay and forwarding on the ethernet signal.
Preferably, the driver station display screen arranges and displays the port flow statistic messages sent by all the ethernet switches in the group and stores the port flow statistic messages as an audit log, and performs screen popup alarm on abnormal flow.
The invention also provides a method for judging the abnormal flow of the vehicle-mounted network equipment, which adopts the vehicle-mounted flow auditing and warning linkage system and comprises the following steps:
a driver station display screen receives port flow statistic messages sent by all Ethernet switches in the group, and compares a real-time port flow statistic value Vr in the messages with a preset port flow threshold value Vt of each vehicle-mounted network device;
if the real-time port flow statistic value Vr in the message is 0 or Vr is more than or equal to Vt and lasts for a certain time, displaying flow abnormity information on a driver platform display screen, and storing the flow abnormity information and the port flow statistic message as an audit log; otherwise, only the port flow statistic content is stored as an audit log.
Preferably, the method for setting the port flow threshold Vt of the vehicle-mounted network device is as follows:
according to the communication requirement of the train, calculating a theoretical value Rxt of the normal communication speed of the vehicle-mounted network equipment;
according to port rate statistics of the vehicle-mounted Ethernet switch, a communication rate actual value Rxr of each subsystem vehicle-mounted network device in a normal operation stage is obtained;
and under the condition that the deviation of the theoretical value and the actual value does not exceed a preset value m, wherein the value of | Rxt-Rxr | is less than or equal to m × Rxt, m is less than 1, the larger value max { Rxt, Rxr } of the theoretical value and the actual value is taken as a flow reference value of the vehicle-mounted network equipment, and a port flow threshold value Vt of the vehicle-mounted network equipment is set to be n × max { Rxt, Rxr }, n is greater than 1, wherein the port flow is the port sending rate and the port receiving rate.
Preferably, if the real-time port traffic statistic Vr > Vt in the message continues for the given alarm time T1 or longer, or the real-time traffic statistic Vr ═ 0 ═ Vr ═ Vt in the message continues for the given alarm time T2 or longer and T2 > T1, the driver platform display screen displays the traffic anomaly information and stores the traffic anomaly information and the port traffic statistic message as an audit log.
Compared with the prior art, the invention has the advantages and positive effects that:
the invention sets a vehicle-mounted flow auditing and alarming linkage system, connects a vehicle-mounted Ethernet switch to an Ethernet hub of the marshalling through an out-of-band management port, connects a driver station display screen to the Ethernet hub of the same driver cab through an Ethernet interface, relays the Ethernet switch of a carriage far away from the driver cab of a head car and a tail car in the marshalling through an Ethernet repeater deployed in the marshalling and then connects the Ethernet switch to the Ethernet hub of the marshalling, so as to ensure that the Ethernet switch of the carriage far away from the driver cab in the marshalling can send signals to the display screen of the driver station in the marshalling, so that the out-of-band management port of the Ethernet switch is connected with the display screen of the driver station, the service bandwidth is not occupied, the real-time flow audit condition of each network device of the vehicle can be objectively reflected, the driver station display screen is used for displaying vehicle current-carrying capacity audit information, and fault warning and fault positioning means can be provided for drivers and conductors.
Meanwhile, according to the set vehicle-mounted flow auditing and warning linkage system, the invention also provides a corresponding flow abnormity judgment method, and a vehicle-mounted network equipment port flow threshold value is preset according to a theoretical value of the normal communication rate of the vehicle-mounted network equipment and the actual value of the communication rate of the vehicle-mounted network equipment counted by the port rate of the vehicle-mounted Ethernet switch; and comparing the real-time port flow statistic value in the port flow statistic message sent by the Ethernet switch with the preset port flow threshold value of each vehicle-mounted network device, further judging whether the flow of each network device is abnormal or not, and displaying the flow abnormal information through a driver board display screen to remind drivers and passengers to pay attention to and handle the abnormal condition. The flow abnormity determination method can detect the abnormal condition of the equipment port flow under the flow threshold value, solves the problem that the equipment cannot be discriminated when the abnormal flow fault occurs under the speed limit of the exchanger port, and can provide flow audit information of each equipment in a vehicle network for a vehicle operator.
Drawings
FIG. 1 is a diagram of a vehicle-mounted traffic auditing and alarm linkage system equipment deployment of the present invention;
FIG. 2 is a flowchart of the overall method for determining abnormal traffic of the vehicle-mounted network device;
FIG. 3 is a flow chart of determining a port traffic threshold for an in-vehicle network device;
fig. 4 is a flow chart of auditing and alarming of a driver station display screen.
Detailed Description
The following further describes embodiments of the present invention with reference to the accompanying drawings.
As shown in fig. 1, an embodiment of the present invention provides a vehicle-mounted traffic auditing and warning linkage system, including: the system comprises a vehicle-mounted Ethernet switch, a driver platform display screen, an Ethernet concentrator and an Ethernet repeater; the driver platform display screen and the ethernet concentrator are simultaneously deployed in the driver cab of the head-tail vehicle, the vehicle-mounted ethernet switch is deployed in each carriage, at least one ethernet repeater is deployed in each group, and in this embodiment, one ethernet repeater may be deployed at the middle carriage position of each group. The vehicle-mounted switch is provided with an out-of-band management port, the driver station display screen, the Ethernet concentrator and the Ethernet repeater are all provided with a plurality of Ethernet interfaces, the vehicle-mounted Ethernet switch is connected to the Ethernet concentrator of the marshalling through the out-of-band management port, the Ethernet switch of the carriage far away from the driver cab of the head and tail cars in the marshalling is connected to the Ethernet concentrator of the marshalling after being relayed through the Ethernet repeater deployed in the marshalling, and the driver station display screen is connected to the Ethernet concentrator of the same driver cab through the Ethernet interfaces.
The method comprises the steps that real-time port rate statistics of a switching chip are obtained on a vehicle-mounted Ethernet switch in a software mode, and the statistics are sorted according to the corresponding relation between ports and various vehicle-mounted network devices and then sent to a driver platform display screen of a local group; the Ethernet repeater is Ethernet repeater equipment, and through carrying out physical layer relay and forwarding on Ethernet signals, the Ethernet switch of the carriage far away from the driver cab in the marshalling can send the signals to the display screen of the driver station in the marshalling; the Ethernet concentrator is Ethernet relay and forwarding equipment, and a driver platform display screen can receive stable and reliable Ethernet physical layer signals by carrying out physical layer relay and forwarding on the Ethernet signals; and the driver station display screen arranges and displays the port flow statistical messages sent by all the Ethernet switches in the group and stores the port flow statistical messages as an audit log, and performs screen popping alarm on abnormal flow so as to remind drivers and passengers to pay attention and handle the abnormal condition.
The invention sets a vehicle-mounted flow audit and alarm linkage system, connects a vehicle-mounted Ethernet switch to an Ethernet concentrator of the marshalling through an out-of-band management port, and connects a driver station display screen to the Ethernet concentrator of the same driver cab through an Ethernet interface, so that the out-of-band management port of the Ethernet switch is connected with the driver station display screen, thereby occupying no service bandwidth, objectively reflecting the real-time flow audit condition of each network device of a vehicle, displaying the current-carrying capacity audit information of the vehicle through the driver station display screen, and providing fault alarm and fault positioning means for drivers and passengers. Meanwhile, the Ethernet switch of the carriage far away from the cab of the head-tail vehicle in the marshalling is connected to the Ethernet hub of the marshalling after being relayed by the Ethernet repeater deployed in the marshalling, so that the Ethernet switch of the carriage far away from the cab in the marshalling can send signals to the display screen of the driver station in the marshalling.
According to the vehicle-mounted traffic auditing and warning linkage system, the invention also provides a corresponding method for judging abnormal traffic of the vehicle-mounted network equipment, which is specifically as follows as shown in fig. 2-4:
(1) determining a preset port traffic threshold of the vehicle-mounted network device, as shown in fig. 3:
according to the communication requirement of the train, calculating a theoretical value Rxt of the normal communication speed of the vehicle-mounted network equipment;
according to port rate statistics of the vehicle-mounted Ethernet switch, a communication rate actual value Rxr of each subsystem vehicle-mounted network device in a normal operation stage is obtained;
under the condition that the deviation between the theoretical value and the actual value does not exceed a preset value m, the value of | Rxt-Rxr | is not less than m × Rxt, m is less than 1, and the value of m is 20% in the embodiment;
taking the larger value max { Rxt, Rxr } of the theoretical value and the actual value as the traffic reference value of the vehicle-mounted network device, and setting the port traffic threshold Vt of the vehicle-mounted network device to be n × max { Rxt, Rxr }, where n > 1, where n is 130% in this embodiment.
The communication rates are respectively counted according to the port sending rate and the port receiving rate, the port flow is the port sending rate and the port receiving rate, and the port sending rate threshold and the port receiving rate threshold can be respectively determined according to the method.
(2) A driver station display screen receives port flow statistic messages sent by all Ethernet switches in the group, and compares a real-time port flow statistic value Vr in the messages with a preset port flow threshold value Vt of each vehicle-mounted network device; and if the real-time port flow statistic value Vr in the message is 0 or Vr is more than or equal to Vt and lasts for a certain time, displaying flow abnormity information by a driver platform display screen, and storing the flow abnormity information and the port flow statistic message as an audit log. As shown in fig. 4, the present embodiment is specifically configured as follows: if the real-time port traffic statistic Vr in the message is larger than Vt and lasts for more than given alarm time T1, or the real-time traffic statistic Vr ═ 0 ═ Vr ═ Vt and lasts for more than given alarm time T2 and T2 is larger than T1, the driver platform display screen displays traffic abnormal information, and stores the traffic abnormal information and the port traffic statistic message as an audit log; otherwise, only the port flow statistic content is stored as an audit log.
In conclusion, the invention sets a vehicle-mounted flow auditing and alarming linkage system, connects a vehicle-mounted Ethernet switch to the Ethernet hub of the marshalling through an out-of-band management port, connects a driver station display screen to the Ethernet hub of the same driver cab through an Ethernet interface, relays the Ethernet switch of the carriage far away from the driver cab of the head and tail cars in the marshalling through the Ethernet repeater deployed in the marshalling and then connects the Ethernet switch to the Ethernet hub of the marshalling, so as to ensure that the Ethernet switch of the carriage far away from the driver cab in the marshalling can send signals to the display screen of the driver station in the marshalling, so that the out-of-band management port of the Ethernet switch is connected with the display screen of the driver station, the service bandwidth is not occupied, the real-time flow audit condition of each network device of the vehicle can be objectively reflected, the driver station display screen is used for displaying vehicle current-carrying capacity audit information, and fault warning and fault positioning means can be provided for drivers and conductors. Meanwhile, according to the set vehicle-mounted flow auditing and warning linkage system, a corresponding flow abnormity judgment method is also provided, and a vehicle-mounted network equipment port flow threshold value is preset according to a theoretical value of the normal communication rate of the vehicle-mounted network equipment and an actual value of the communication rate of the vehicle-mounted network equipment counted by the port rate of the vehicle-mounted Ethernet switch; and comparing the real-time port flow statistic value in the port flow statistic message sent by the Ethernet switch with the preset port flow threshold value of each vehicle-mounted network device, further judging whether the flow of each network device is abnormal or not, and displaying the flow abnormal information through a driver board display screen to remind drivers and passengers to pay attention to and handle the abnormal condition. The flow abnormity determination method can detect the abnormal condition of the equipment port flow under the flow threshold value, solves the problem that the equipment cannot be discriminated when the abnormal flow fault occurs under the speed limit of the exchanger port, and can provide flow audit information of each equipment in a vehicle network for a vehicle operator.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.
Claims (9)
1. The utility model provides a vehicle-mounted flow audit and warning linked system which characterized in that includes: the system comprises a vehicle-mounted Ethernet switch, a driver platform display screen, an Ethernet concentrator and an Ethernet repeater;
the driver platform display screen and the Ethernet concentrator are simultaneously deployed in a driver cab of a head-tail vehicle, the vehicle-mounted Ethernet switch is deployed in each carriage, and at least one Ethernet repeater is deployed in each group;
the vehicle-mounted switch is provided with an out-of-band management port, and the driver platform display screen, the Ethernet concentrator and the Ethernet repeater are all provided with a plurality of Ethernet interfaces;
the vehicle-mounted Ethernet switch is connected to the Ethernet hub of the marshalling through an out-of-band management port, the Ethernet switch of the carriage far away from the cab of the head-tail vehicle in the marshalling is connected to the Ethernet hub of the marshalling after being relayed through the Ethernet repeater deployed in the marshalling, and the display screen of the driver station is connected to the Ethernet hub of the same cab through an Ethernet interface.
2. The vehicle traffic audit and alarm linkage system according to claim 1 wherein one ethernet repeater is deployed in each consist at an intermediate car location in each consist.
3. The system of claim 1, wherein the real-time port rate statistics of the switch chip are obtained by software on the ethernet switch and sent to the display screen of the driver's station in the group.
4. The vehicle-mounted flow audit and alarm linkage system according to claim 1, wherein the ethernet repeaters are ethernet repeaters, and by relaying and forwarding ethernet signals in a physical layer, the ethernet switch of a car farther from the cab in the group can transmit signals to the display screen of the cab in the group.
5. The vehicle-mounted flow auditing and alarm linkage system according to claim 1, characterized in that the ethernet hub is an ethernet relay and forwarding device, and the ethernet signal is relayed and forwarded by the physical layer, so that the display screen of the driver station in the group receives the ethernet physical layer signal.
6. The vehicle-mounted flow auditing and alarm linkage system according to claim 1, characterized in that the driver station display screen arranges and displays and stores port flow statistics messages sent by all ethernet switches of the group as an audit log, and performs screen popup alarm on abnormal flow information.
7. A method for judging abnormal traffic of vehicle-mounted network equipment, which is characterized in that the vehicle-mounted traffic auditing and warning linkage system of any one of claims 1 to 6 is adopted, and comprises the following steps:
a driver station display screen receives port flow statistic messages sent by all Ethernet switches in the group, and compares a real-time port flow statistic value Vr in the messages with a preset port flow threshold value Vt of each vehicle-mounted network device;
if the real-time port flow statistic value Vr in the message is 0 or Vr is more than or equal to Vt and lasts for a certain time, displaying flow abnormity information on a driver platform display screen, and storing the flow abnormity information and the port flow statistic message as an audit log; otherwise, only the port flow statistic content is stored as an audit log.
8. The method for determining traffic anomaly of vehicle-mounted network equipment according to claim 7, wherein a method for setting a port traffic threshold value Vt of the vehicle-mounted network equipment is as follows:
according to the communication requirement of the train, calculating a theoretical value Rxt of the normal communication speed of the vehicle-mounted network equipment;
according to port rate statistics of the vehicle-mounted Ethernet switch, a communication rate actual value Rxr of each subsystem vehicle-mounted network device in a normal operation stage is obtained;
and under the condition that the deviation of the theoretical value and the actual value does not exceed a preset value m, wherein the value of | Rxt-Rxr | is less than or equal to m × Rxt, m is less than 1, the larger value max { Rxt, Rxr } of the theoretical value and the actual value is taken as a flow reference value of the vehicle-mounted network equipment, and a port flow threshold value Vt of the vehicle-mounted network equipment is set to be n × max { Rxt, Rxr }, n is greater than 1, wherein the port flow is the port sending rate and the port receiving rate.
9. The method as claimed in claim 7 or 8, wherein if the real-time port traffic statistic Vr > Vt in the message continues for the given alarm time T1 or longer, or the real-time traffic statistic Vr ═ 0 ═ Vr ═ Vt continues for the given alarm time T2 or longer and T2 > T1, the driver platform display screen displays the traffic anomaly information and stores the traffic anomaly information and the port traffic statistic message as an audit log.
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