CN116566800A - Network diagnosis method and device for central computing and regional cooperative control architecture - Google Patents
Network diagnosis method and device for central computing and regional cooperative control architecture Download PDFInfo
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Abstract
The invention discloses a network diagnosis method and device for a central computing and regional cooperative control architecture, and relates to the technical field of communication network fault diagnosis. The method comprises the following steps: after a target message transmitted by a communication link is lost, acquiring fault information reported by a current network node on the communication link; determining a last network node for sending a target message to a current network node according to the network node name in the fault information; taking the last network node as the current network node and judging whether fault information reported by the current network node is received or not; if the fault information reported by the current network node is not received, determining that the current network node is abnormal. According to the invention, after the target message transmitted by the communication link is lost, the network nodes without reporting fault information on the communication link can be traced forward step by step, so that the fault diagnosis of the communication network is realized.
Description
Technical Field
The invention relates to the technical field of communication network fault diagnosis, in particular to a network diagnosis method and device for a central computing and regional cooperative control architecture.
Background
The electric, intelligent and networking driving automobile electronic and electric appliance architecture of the automobile is changed from a distributed architecture to a central computing and regional cooperative control architecture, a plurality of network data communication switching centers exist in a communication network of the central computing and regional cooperative control architecture, the communication network is quite complex, messages are lost when nodes in the communication network are abnormal, and vehicle communication is abnormal, so that abnormal nodes need to be positioned timely and accurately when network nodes are abnormal, faults are cleared timely, and normal communication of the vehicle is guaranteed. Based on this, how to accurately locate an abnormal node of a communication network is a problem to be solved in the art.
Disclosure of Invention
The invention solves the technical problem of how to accurately position the abnormal nodes of the communication network by providing the network diagnosis method and the device facing the central computing and regional cooperative control architecture.
In one aspect, the present invention provides the following technical solutions:
a network diagnosis method facing to a central computing and regional cooperative control architecture comprises the following steps:
after a target message transmitted by a communication link is lost, acquiring fault information reported by a current network node on the communication link, wherein the fault information comprises a target message ID and a network node name for transmitting the target message to the current network node; the fault information is reported by a network node on the communication link when the target message is lost;
determining a last network node for transmitting the target message to the current network node according to the network node name in the fault information;
taking the last network node as a current network node and judging whether the fault information reported by the current network node is received or not;
if the fault information reported by the current network node is received, the step of jumping to the last network node which determines to send the target message to the current network node according to the network node name in the fault information is carried out;
and if the fault information reported by the current network node is not received, determining that the current network node is abnormal.
Preferably, the fault information further includes a target message loss time.
Preferably, the target message includes any one, two or three of an information security and functional security related attribute message, an ID priority highest message and a period minimum message.
Preferably, the information security and functional security related attribute message includes a message triggered by the remote control device and generated in the vehicle-mounted terminal MCU, a message periodically sent to the vehicle by the vehicle-mounted terminal, a message sent to the vehicle-mounted terminal by the target component, a periodic communication message between the target components, or a message forwarded to the vehicle-mounted terminal by the gateway group packet.
On the other hand, the invention also provides the following technical scheme:
a network diagnostic device for a central computing and regional cooperative control architecture, comprising:
the acquisition module is used for acquiring fault information reported by a current network node on a communication link after a target message transmitted by the communication link is lost, wherein the fault information comprises a target message ID and a network node name for transmitting the target message to the current network node; the fault information is reported by a network node on the communication link when the target message is lost;
a determining module, configured to determine, according to a network node name in the fault information, a last network node that sends the target packet to the current network node;
the judging module is used for taking the last network node as a current network node and judging whether the fault information reported by the current network node is received or not; if the fault information reported by the current network node is received, the step of jumping to the last network node which determines to send the target message to the current network node according to the network node name in the fault information is carried out; and if the fault information reported by the current network node is not received, determining that the current network node is abnormal.
Preferably, the fault information further includes a target message loss time.
Preferably, the target message includes any one, two or three of an information security and functional security related attribute message, an ID priority highest message and a period minimum message.
Preferably, the information security and functional security related attribute message includes a message triggered by the remote control device and generated in the vehicle-mounted terminal MCU, a message periodically sent to the vehicle by the vehicle-mounted terminal, a message sent to the vehicle-mounted terminal by the target component, a periodic communication message between the target components, or a message forwarded to the vehicle-mounted terminal by the gateway group packet.
On the other hand, the invention also provides the following technical scheme:
an electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing any of the above-described network diagnostic methods facing a central computing and regional co-control architecture when executing the program.
On the other hand, the invention also provides the following technical scheme:
a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements any of the above-described network diagnostic methods facing a central computing and regional cooperative control architecture.
The one or more technical schemes provided by the invention have at least the following technical effects or advantages:
after the target message transmitted by the communication link is lost, the invention judges whether the fault information reported by the network node of the communication link is received, and if the fault information reported by a certain network node is received, the network nodes without the fault information reported on the communication link are traced back step by step, so that the abnormal network nodes are determined, and the fault diagnosis of the communication network is realized.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a network diagnosis method facing to a central computing and regional cooperative control architecture in an embodiment of the present invention;
FIG. 2 is a schematic diagram of a communication network of a central computing and regional cooperative control architecture in an embodiment of the present invention;
FIG. 3 is a schematic diagram of a communication link in an embodiment of the present invention;
fig. 4 is a schematic diagram of a network diagnosis device facing to a central computing and regional cooperative control architecture in an embodiment of the invention.
Detailed Description
The embodiment of the invention solves the technical problem of how to accurately position the abnormal node of the communication network by providing the network diagnosis method and the device for the central computing and regional cooperative control architecture.
In order to better understand the technical scheme of the present invention, the following detailed description will refer to the accompanying drawings and specific embodiments.
As shown in fig. 1, the network diagnosis method for the central computing and regional cooperative control architecture of the present embodiment includes:
step S1, after a target message transmitted by a communication link is lost, acquiring fault information reported by a current network node on the communication link, wherein the fault information comprises a target message ID and a network node name for transmitting the target message to the current network node; the fault information is reported by a network node on a communication link when a target message transmitted by the communication link is lost;
step S2, determining the last network node for sending the target message to the current network node according to the network node name in the fault information;
step S3, the last network node is used as the current network node and whether fault information reported by the current network node is received or not is judged; if the fault information reported by the current network node is received, jumping to the step S2; if the fault information reported by the current network node is not received, determining that the current network node is abnormal.
The present embodiment is described taking a network diagnosis method for a central computing and regional cooperative control architecture as an example, which is applied to the communication network of the central computing and regional cooperative control architecture shown in fig. 2. The communication network of fig. 2 includes a central computing platform and a plurality of regional controllers, where the central computing platform is respectively connected to the plurality of regional controllers in a communication manner, each regional controller is also respectively connected to a plurality of ECUs (Electronic Control Unit, electronic control units) in a communication manner, each regional controller and each ECU are network nodes, the central computing platform and each regional controller also serve as a gateway to route messages, each receiving network node reports fault information when a target message sent by a sending network node is lost, the fault information includes a target message ID and a name of the sending network node that sends the target message to the receiving network node, and the loss of the target message in the communication network represents that an abnormality occurs in a certain network node on a communication link that transmits the target message.
The longest communication link in fig. 2 is shown in fig. 3, and the message transmitted by the communication link in fig. 3 is routed through the gateway, so that the target message is a routing message. Assuming that the target message is transmitted to the ECU B-1 by the ECU A-1 and the target message is lost at the network node area controller A, the network node central computing platform, the area controller B and the ECU B-1 report fault information, the fault information reported by the central computing platform comprises a target message ID and the name of the area controller A, the fault information reported by the area controller B comprises a target message ID and the name of the central computing platform, and the fault information reported by the ECU B-1 comprises a target message ID and the name of the area controller B. The current network node in step S1 is one of all the network nodes that reported the failure information. Assuming that the current network node in the step S1 is the area controller B, the step S1 may acquire the name of the central computing platform, and then the step S2 may determine, according to the name of the central computing platform in the fault information, that the last network node that sends the target message to the area controller B is the central computing platform; because the central computing platform also reports the fault information, the step S3 judges that the fault information reported by the central computing platform is received, and represents that the target message is not lost at the node of the central computing platform, and jumps to the step S2, wherein the fault information reported by the central computing platform comprises the name of the regional controller A, and then the step S2 can determine that the last network node which sends the target message to the central computing platform is the regional controller A according to the name of the regional controller A in the fault information; because the area controller a does not report the fault information, step S3 determines that the fault information reported by the area controller a is not received, which represents that the target message is lost at the node of the area controller a, and determines that the area controller a is abnormal.
In this embodiment, if the message is transmitted from the ECU a-1 to the ECU a-2 in fig. 2, the message is a non-routing message, the ECU a-1 is a transmitting network node, and the ECU a-2 is a receiving network node. After the message transmitted by the communication link is lost, the embodiment can acquire the fault information reported by the ECU A-2, and the fault information of the non-routing message only comprises the name of the ECU A-1, so that the message can be directly determined to be lost at the node of the ECU A-1, and the abnormality of the ECU A-1 is determined. The fault diagnosis mode after the non-routing message is lost is simpler, and the network diagnosis method of the central computing and region cooperative control architecture oriented to the figure 1 is only aimed at the non-routing message.
As can be seen from the above, in this embodiment, after the target message transmitted by the communication link is lost, the network node on the communication link that does not report the fault information is traced back step by step, so that the abnormal network node is determined, and the abnormal node of the communication network can be accurately located.
The target message in this embodiment may be any message, but the loss of the non-critical message only can indicate that a problem occurs when a certain network node transmits the message, and it is highly probable that the network node can normally transmit other messages, so that it is unnecessary to locate an abnormal network node when the non-critical message is lost. When the key message is lost, the network node which is lost with the key message can be basically determined to be in a dropped state, other messages can not be transmitted, and the network node which is lost with the key message is necessary to be positioned. Therefore, in this embodiment, the target message is preferably a key message, and the abnormal network node will be located only after the key message is lost, so as to avoid nonsensical fault diagnosis. The key message comprises an information security and function security related attribute message, an ID priority highest message and a period minimum message, and the target message can comprise any one, two or three of the information security and function security related attribute message, the ID priority highest message and the period minimum message. The information safety and functional safety related attribute messages comprise messages triggered by the remote control equipment and generated and issued in the vehicle-mounted terminal MCU, messages periodically sent into the vehicle by the vehicle-mounted terminal, messages sent to the vehicle-mounted terminal by the target parts (ECU (electronic control Unit) which performs end-to-end communication with the vehicle-mounted terminal), periodic communication messages among the target parts or messages forwarded to the vehicle-mounted terminal by the gateway group package. The message with the highest ID priority belongs to the message which can be processed preferentially by the network node, and the condition that the message is difficult to lose is difficult to occur, so that the loss of a certain network node can be determined with high probability when the message is lost. The message with the minimum period belongs to the message with the highest sending frequency, and the message is difficult to lose because of being continuously transmitted, so that the network node can be determined to be disconnected when the message is lost. When the target message comprises 3 messages, namely an information security and functional security related attribute message, an ID priority highest message and a period minimum message, the 3 key messages can be determined to be dropped to the greatest extent when all the key messages are lost, and nonsensical fault diagnosis can be avoided to the greatest extent. However, if the information security and functional security attribute ECU does not exist in the communication network, the target message may include any one or both of the highest ID priority message and the minimum period message.
In addition, the fault information of the embodiment may further include a target message loss time, so that the abnormal time of the abnormal network node can be determined.
As shown in fig. 4, the present embodiment further provides a network diagnosis device facing to a central computing and regional cooperative control architecture, including:
the acquisition module is used for acquiring fault information reported by a current network node on a communication link after a target message transmitted by the communication link is lost, wherein the fault information comprises a target message ID and a network node name for transmitting the target message to the current network node;
the determining module is used for determining the last network node which sends the target message to the current network node according to the network node name in the fault information;
the judging module is used for taking the last network node as the current network node and judging whether fault information reported by the current network node is received or not; if the fault information reported by the current network node is received, the step of jumping to the last network node for determining to send the target message to the current network node according to the network node name in the fault information is carried out; if the fault information reported by the current network node is not received, determining that the current network node is abnormal.
The present embodiment is described taking a communication network in which the network diagnosis device for the central computing and regional cooperative control architecture is applied to the central computing and regional cooperative control architecture shown in fig. 2 as an example. The communication network of fig. 2 includes a central computing platform and a plurality of regional controllers, where the central computing platform is respectively connected to the plurality of regional controllers in a communication manner, each regional controller is also respectively connected to a plurality of ECUs (Electronic Control Unit, electronic control units) in a communication manner, each regional controller and each ECU are network nodes, the central computing platform and each regional controller also serve as a gateway to route messages, each receiving network node reports fault information when a target message sent by a sending network node is lost, the fault information includes a target message ID and a name of the sending network node that sends the target message to the receiving network node, and the loss of the target message in the communication network represents that an abnormality occurs in a certain network node on a communication link that transmits the target message.
The longest communication link in fig. 2 is shown in fig. 3, and the message transmitted by the communication link in fig. 3 is routed through the gateway, so that the target message is a routing message. Assuming that the target message is transmitted to the ECU B-1 by the ECU A-1 and the target message is lost at the network node area controller A, the network node central computing platform, the area controller B and the ECU B-1 report fault information, the fault information reported by the central computing platform comprises a target message ID and the name of the area controller A, the fault information reported by the area controller B comprises a target message ID and the name of the central computing platform, and the fault information reported by the ECU B-1 comprises a target message ID and the name of the area controller B. The current network node for which the acquired module acquires the fault information is one of all network nodes for which the fault information is reported. Assuming that the current network node of which the acquired module acquires fault information is the regional controller B, the acquisition module can acquire the name of the central computing platform, and then the determination module can determine that the last network node for transmitting the target message to the regional controller B is the central computing platform according to the name of the central computing platform in the fault information; because the central computing platform also reports fault information, which represents that the target message is not lost at the node of the central computing platform, the judging module judges that the fault information reported by the central computing platform is received, the fault information reported by the central computing platform comprises the name of the regional controller A, and the determining module can determine that the last network node for sending the target message to the central computing platform is the regional controller A according to the name of the regional controller A in the fault information; because the area controller A does not report the fault information, the judging module can judge that the fault information reported by the area controller A is not received, and the target message is lost at the node of the area controller A, so that the abnormality of the area controller A is determined.
In this embodiment, if the message is transmitted from the ECU a-1 to the ECU a-2 in fig. 2, the message is a non-routing message, the ECU a-1 is a transmitting network node, and the ECU a-2 is a receiving network node. After the message transmitted by the communication link is lost, the embodiment can acquire the fault information reported by the ECU A-2, and the fault information of the non-routing message only comprises the name of the ECU A-1, so that the message can be directly determined to be lost at the node of the ECU A-1, and the abnormality of the ECU A-1 is determined. The fault diagnosis mode after the non-routing message is lost is simpler, and the network diagnosis device facing the central computing and regional cooperative control architecture in fig. 4 is only aimed at the non-routing message.
As can be seen from the above, in this embodiment, after the target message transmitted by the communication link is lost, the network node on the communication link that does not report the fault information is traced back step by step, so that the abnormal network node is determined, and the abnormal node of the communication network can be accurately located.
The target message in this embodiment may be any message, but the loss of the non-critical message only can indicate that a problem occurs when a certain network node transmits the message, and it is highly probable that the network node can normally transmit other messages, so that it is unnecessary to locate an abnormal network node when the non-critical message is lost. When the key message is lost, the network node which is lost with the key message can be basically determined to be in a dropped state, other messages can not be transmitted, and the network node which is lost with the key message is necessary to be positioned. Therefore, in this embodiment, the target message is preferably a key message, and the abnormal network node will be located only after the key message is lost, so as to avoid nonsensical fault diagnosis. The key message comprises an information security and function security related attribute message, an ID priority highest message and a period minimum message, and the target message can comprise any one, two or three of the information security and function security related attribute message, the ID priority highest message and the period minimum message. The information safety and functional safety related attribute messages comprise messages triggered by the remote control equipment and generated and issued in the vehicle-mounted terminal MCU, messages periodically sent into the vehicle by the vehicle-mounted terminal, messages sent to the vehicle-mounted terminal by the target parts (ECU (electronic control Unit) which performs end-to-end communication with the vehicle-mounted terminal), periodic communication messages among the target parts or messages forwarded to the vehicle-mounted terminal by the gateway group package. The message with the highest ID priority belongs to the message which can be processed preferentially by the network node, and the condition that the message is difficult to lose is difficult to occur, so that the loss of a certain network node can be determined with high probability when the message is lost. The message with the minimum period belongs to the message with the highest sending frequency, and the message is difficult to lose because of being continuously transmitted, so that the network node can be determined to be disconnected when the message is lost. When the target message comprises 3 messages, namely an information security and functional security related attribute message, an ID priority highest message and a period minimum message, the 3 key messages can be determined to be dropped to the greatest extent when all the key messages are lost, and nonsensical fault diagnosis can be avoided to the greatest extent. However, if the information security and functional security attribute ECU does not exist in the communication network, the target message may include any one or both of the highest ID priority message and the minimum period message.
In addition, the fault information of the embodiment may further include a target message loss time, so that the abnormal time of the abnormal network node can be determined.
Based on the same inventive concept as the network diagnosis method for the central computing and regional cooperative control architecture, the present embodiment further provides an electronic device, including a memory, a processor, and a computer program stored on the memory and capable of running on the processor, where the processor executes the program to implement any one of the steps of the network diagnosis method for the central computing and regional cooperative control architecture.
Where a bus architecture (represented by a bus), a bus may comprise any number of interconnected buses and bridges, linking together various circuits, including one or more processors, as represented by a processor, and a memory, as represented by a memory. The bus may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., as are well known in the art and, therefore, will not be further described herein. The bus interface provides an interface between the bus and the receiver and transmitter. The receiver and the transmitter may be the same element, i.e. a transceiver, providing a unit for communicating with various other apparatus over a transmission medium. The processor is responsible for managing the bus and general processing, while the memory may be used to store data used by the processor in performing operations.
Since the electronic device described in this embodiment is an electronic device used for implementing the network diagnosis method for the central computing and regional cooperative control architecture in this embodiment of the present invention, based on the network diagnosis method for the central computing and regional cooperative control architecture described in this embodiment of the present invention, those skilled in the art can understand the specific implementation manner of the electronic device and various modifications thereof, so how to implement the method in this embodiment of the present invention for this electronic device will not be described in detail herein. As long as those skilled in the art implement the electronic device adopted by the network diagnosis method facing the central computing and regional cooperative control architecture in the embodiment of the present invention, the electronic device belongs to the scope of protection intended by the present invention.
Based on the same inventive concept as the network diagnosis method facing the central computing and region cooperative control architecture, the invention also provides a computer readable storage medium, wherein a computer program is stored on the computer readable storage medium, and the computer program realizes any network diagnosis method facing the central computing and region cooperative control architecture when being executed by a processor.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (10)
1. A network diagnosis method for a central computing and regional cooperative control architecture is characterized by comprising the following steps:
after a target message transmitted by a communication link is lost, acquiring fault information reported by a current network node on the communication link, wherein the fault information comprises a target message ID and a network node name for transmitting the target message to the current network node; the fault information is reported by a network node on the communication link when the target message is lost;
determining a last network node for transmitting the target message to the current network node according to the network node name in the fault information;
taking the last network node as a current network node and judging whether the fault information reported by the current network node is received or not;
if the fault information reported by the current network node is received, the step of jumping to the last network node which determines to send the target message to the current network node according to the network node name in the fault information is carried out;
and if the fault information reported by the current network node is not received, determining that the current network node is abnormal.
2. The network diagnosis method for central computing and regional cooperative control architecture according to claim 1, wherein the fault information further comprises a target message loss time.
3. The network diagnosis method for central computing and regional cooperative control architecture according to claim 1, wherein the target message comprises any one, two or three of an information security and functional security related attribute message, an ID priority highest message and a period minimum message.
4. The network diagnosis method for the central computing and regional cooperative control architecture according to claim 3, wherein the information security and functional security related attribute message comprises a message triggered by a remote control device and generated in a vehicle-mounted terminal MCU, a message periodically sent into a vehicle by a vehicle-mounted terminal, a message sent to the vehicle-mounted terminal by a target component, a periodic communication message between target components, or a message retransmitted to the vehicle-mounted terminal by a gateway group packet.
5. A network diagnostic device for a central computing and regional cooperative control architecture, comprising:
the acquisition module is used for acquiring fault information reported by a current network node on a communication link after a target message transmitted by the communication link is lost, wherein the fault information comprises a target message ID and a network node name for transmitting the target message to the current network node; the fault information is reported by a network node on the communication link when the target message is lost;
a determining module, configured to determine, according to a network node name in the fault information, a last network node that sends the target packet to the current network node;
the judging module is used for taking the last network node as a current network node and judging whether the fault information reported by the current network node is received or not; if the fault information reported by the current network node is received, the step of jumping to the last network node which determines to send the target message to the current network node according to the network node name in the fault information is carried out; and if the fault information reported by the current network node is not received, determining that the current network node is abnormal.
6. The network diagnostic device for a central computing and regional cooperative control architecture of claim 5, wherein the failure information further comprises a target message loss time.
7. The network diagnostic device of claim 5, wherein the target message comprises any one, two or three of an information security and functional security related attribute message, an ID priority highest message and a period minimum message.
8. The network diagnostic device for a central computing and regional cooperative control architecture according to claim 7, wherein the information security and functional security related attribute message includes a message triggered by a remote control device and generated in an MCU of the vehicle terminal, a message periodically sent to the vehicle by the vehicle terminal, a message sent to the vehicle terminal by a target component, a periodic communication message between target components, or a message retransmitted to the vehicle terminal by a gateway group packet.
9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the network diagnostic method for a central computing and regional cooperative control architecture of any of claims 1-4 when the program is executed.
10. A computer readable storage medium, characterized in that it has stored thereon a computer program which, when executed by a processor, implements the network diagnostic method for a central computing and regional cooperative control architecture according to any of claims 1 to 4.
Priority Applications (1)
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