CN113039756A - Method for determining an operational failure of a communication node of a communication network installed in a land motor vehicle - Google Patents
Method for determining an operational failure of a communication node of a communication network installed in a land motor vehicle Download PDFInfo
- Publication number
- CN113039756A CN113039756A CN201980075205.7A CN201980075205A CN113039756A CN 113039756 A CN113039756 A CN 113039756A CN 201980075205 A CN201980075205 A CN 201980075205A CN 113039756 A CN113039756 A CN 113039756A
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- communication
- communication node
- determining
- computer system
- motor vehicle
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- 238000004891 communication Methods 0.000 title claims abstract description 85
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000013500 data storage Methods 0.000 claims description 9
- 238000004590 computer program Methods 0.000 claims description 4
- 238000007726 management method Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000003745 diagnosis Methods 0.000 description 1
- 238000002405 diagnostic procedure Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4604—LAN interconnection over a backbone network, e.g. Internet, Frame Relay
- H04L12/462—LAN interconnection over a bridge based backbone
- H04L12/4625—Single bridge functionality, e.g. connection of two networks over a single bridge
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0823—Errors, e.g. transmission errors
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Environmental & Geological Engineering (AREA)
- Small-Scale Networks (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention relates to a determination method for determining an operational failure of at least one communication node of a communication network installed in a land motor vehicle, to an associated system and to an associated land motor vehicle.
Description
Technical Field
The present invention relates to the field of communication systems for land motor vehicles. The invention relates in particular to a determination method for determining an operational failure of a communication node of a communication network installed in a land motor vehicle. The invention is particularly applicable to motor vehicles.
Background
Today, some land motor vehicles are equipped with a loaded communication network capable of exchanging information between communication nodes through communication frames established according to the ethernet protocol. However, as is known, the ethernet protocol does not provide any mechanism to determine and indicate that a communication node has suffered an operational failure when it has suffered an operational failure. This is particularly problematic because, for example in the case of after-sales service, it becomes difficult to diagnose an optional operating fault of a communication node of a communication network loaded in a land motor vehicle quickly and efficiently.
Disclosure of Invention
The present invention seeks to provide a method and system to overcome these disadvantages. The present invention aims in particular to provide a method and a system capable of monitoring the operation of a communication node of a communication network loaded in a land motor vehicle, in order to facilitate the diagnosis and management of optional operational faults of the communication node.
To this end, the invention aims to provide a method for determining an operating failure of at least one communication node of a communication network installed in a land motor vehicle, said communication node being configured to transmit communication frames established according to an ethernet protocol, said method comprising the steps of:
-receiving a communication frame transmitted by the communication node,
-determining the number of communication frames previously transmitted by said communication node, and
-recording on a data storage carrier of said system at least one piece of data relating to (false fresh audio) said communication node when the number of previously transmitted frames is smaller than a first threshold value, and erasing from said data storage carrier any data relating to said communication node when the number of previously transmitted frames is larger than a second threshold value.
According to a variant, the step of determining the number of previously transmitted communication frames may be carried out with respect to a pre-established time interval (enregard de).
According to another variant, the step of determining the number of previously transmitted communication frames may comprise the step of extracting the value of a counter related to said communication node.
According to another variant, the step of determining the number of previously transmitted communication frames may comprise the step of incrementing the counter.
The invention is also directed to a computer system for determining an operational failure of a communication node of a communication network installed in a land motor vehicle, the system comprising means for implementing the method as defined above.
According to a variant, the system may comprise at least one processor and memory means, in which at least one program is stored for executing the steps according to the determination method implemented by the system.
The invention is also directed to a computer program comprising instructions for carrying out the steps of the method as defined above.
The invention also aims to provide a carrier usable in a computer on which a program as defined above is recorded.
The invention also aims to provide a land motor vehicle comprising a system as defined above.
Drawings
Other features and advantages of the present invention will become more apparent upon reading the following detailed description and the accompanying drawings, in which:
FIG. 1 is a block diagram of a determination system according to the present invention, and
fig. 2 is a flow chart illustrating some steps of a determination method according to the present invention.
Detailed Description
As shown in fig. 1, a system 100 for determining an operational failure of a communication node of a communication network loaded in a land motor vehicle according to the invention comprises: an information processing unit 101 including one or more processors; a data storage carrier 102; an input and output section 103; and optionally a component 104 that communicates via radio frequency signals.
According to some embodiments, the system 100 is carried in a land-based motor vehicle (e.g., an automobile) and distributed among one or more computers. According to other embodiments of the invention, system 100 includes one or more computers, one or more servers, one or more supercomputers, and/or includes any combination of one of these computer systems. Embodiments are also contemplated in which some elements of system 100 are housed partially on a land motor vehicle and on one or more computers, while other elements are distributed on one or more remote servers. According to a preferred embodiment, the system 100 is part of an electronic control Unit (https:// fr. wikipedia. org/wiki/Unit% C3% A9_ de _ command _% C3% A9 electronic) onboard a land motor vehicle.
All of the elements described above help enable the system 100 to implement a determination method for determining an operational failure of a communication node of a communication network loaded in a land motor vehicle, as described below.
As shown in fig. 2, system 100 receives a communication frame transmitted by a communication node, according to step 201. Indeed, advantageously, any communication node of the communication network according to the present invention regularly (e.g. periodically) transmits communication frames to the system 100. Likewise, the system 100 also regularly transmits communication frames to all communication nodes of the network.
Then, according to another step 202, the system 100 determines the number of communication frames previously transmitted by said communication node. Preferably, the number of previously transmitted communication frames is determined with respect to a pre-established time interval occurring before the reception of a communication frame carried out in the previous step, thereby defining a sliding time window ending at the moment of reception of a communication frame. Alternatively, the communication system determines the number of previously transmitted frames by recycling the digital value stored on the data storage carrier 102 relating to the counter of the communication node. In this case, step 202 further comprises the step of incrementing the value of the counter.
Then, according to a further step 203, the system 100 records at least one data relating to said communication node on a data storage carrier 102 of said system when the number of previously transmitted frames determined in the previous step is smaller than a predetermined first threshold (e.g. 3). For example, the system records the parameter or code against an identification code for unambiguously identifying the communication node. Alternatively, or cumulatively, the system 100 generates a sequence of characters (e.g., "confirmed fault") that is recorded on the data storage carrier 102 relative to the communication node identification code. Conversely, when the number of previously transmitted frames is greater than a second threshold (e.g., 17), the system 100 erases any data related to the communication node from the data storage carrier 102.
Through these steps, the system provides a mechanism to ensure that operational faults can be diagnosed and stored. Furthermore, by judiciously dimensioning the value of the first threshold value, the system also ensures that brief, persistent operating faults are not stored. Moreover, by judiciously parameterizing the value of the second threshold, the system 100 ensures that the operation of the communication node is considered normal only if the number of communication frames that the communication node has transmitted is much greater than the number of frames defined by the first threshold, as for which the system 100 considers that there is an operational failure. Thus, by specifically considering the situation in which the system 100 previously determined that the communication node suffered an operational failure, the system 100 is also able to ensure that the operation of the communication node is only re-assumed to be normal when the number of received communication frames effectively characterizes the operational state determined to be normal.
In the above described method and system according to the invention, therefore, functional blocks are provided for enabling monitoring of a communication network (in particular an ethernet network) of a land motor vehicle and storing, if necessary, operational failures of communication nodes of said network. The invention thus enables an improved diagnostic procedure and management of operational faults in relation to the communication network of a land motor vehicle.
The invention is not limited to the embodiments described above, which are shown by way of example only, but extends to other embodiments, particularly embodiments formed by combining some features described in connection with some embodiments with other features described in connection with other embodiments.
Claims (9)
1. A determination method for determining, by a computer system (100), an operating failure of at least one communication node of a communication network installed in a land motor vehicle, said communication node being configured for transmitting communication frames established according to an ethernet protocol, characterized in that it comprises the steps of:
receiving a communication frame transmitted by the communication node,
determining a number of communication frames previously transmitted by said communication node, an
Recording at least one data relating to the communication node on a data storage carrier (102) of the computer system when the number of previously transmitted communication frames is less than a first threshold value, and erasing any data relating to the communication node from the data storage carrier (102) when the number of previously transmitted communication frames is greater than a second threshold value.
2. The method of claim 1, wherein the step of determining the number of previously transmitted communication frames is performed with respect to a pre-established time interval.
3. The determination method according to claim 1, characterized in that the step of determining the number of previously transmitted communication frames comprises the step of extracting the value of a counter related to the communication node.
4. A method of determination as claimed in claim 3, characterized in that the step of determining the number of previously transmitted communication frames comprises the step of incrementing the counter.
5. A computer system (100) for determining an operational failure of at least one communication node of a communication network installed in a land motor vehicle, said communication node being configured for transmitting communication frames established according to an ethernet protocol, characterized in that the computer system comprises means (101, 102, 103, 104) for implementing the determination method according to any one of the preceding claims.
6. Computer system according to claim 5, characterized in that the computer system comprises at least one processor (101) and a storage means (102), in which at least one program is stored, which at least one program is adapted to carry out the steps according to the determination method implemented by the computer system.
7. Computer program comprising program code instructions for carrying out the steps of the determination method according to any one of claims 1 to 4, when said computer program is executed on a computer.
8. A carrier usable in a computer, on which a computer program according to claim 7 is recorded.
9. A land motor vehicle comprising a computer system according to claim 5 or 6.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1871570A FR3088786B1 (en) | 2018-11-16 | 2018-11-16 | METHOD FOR DETERMINING A MALFUNCTIONING OF A COMMUNICATING NODE OF A COMMUNICATION NETWORK ONBOARD IN A LAND MOTOR VEHICLE |
| FR1871570 | 2018-11-16 | ||
| PCT/FR2019/052553 WO2020099751A1 (en) | 2018-11-16 | 2019-10-25 | Method for determining a malfunction of a communicating node of an on-board communications network in a motor-driven land vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113039756A true CN113039756A (en) | 2021-06-25 |
Family
ID=66166135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201980075205.7A Pending CN113039756A (en) | 2018-11-16 | 2019-10-25 | Method for determining an operational failure of a communication node of a communication network installed in a land motor vehicle |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3881497A1 (en) |
| CN (1) | CN113039756A (en) |
| FR (1) | FR3088786B1 (en) |
| WO (1) | WO2020099751A1 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017141546A1 (en) * | 2016-02-19 | 2017-08-24 | 日立オートモティブシステムズ株式会社 | Redundant communication system and redundant communication system restoration method |
| DE102017113564A1 (en) * | 2016-06-20 | 2017-12-21 | Hyundai Motor Company | Operating method of a communication node for detecting connection errors in a network |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6519453B2 (en) * | 2015-11-18 | 2019-05-29 | 株式会社デンソー | Communications system |
-
2018
- 2018-11-16 FR FR1871570A patent/FR3088786B1/en active Active
-
2019
- 2019-10-25 WO PCT/FR2019/052553 patent/WO2020099751A1/en unknown
- 2019-10-25 CN CN201980075205.7A patent/CN113039756A/en active Pending
- 2019-10-25 EP EP19813630.1A patent/EP3881497A1/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017141546A1 (en) * | 2016-02-19 | 2017-08-24 | 日立オートモティブシステムズ株式会社 | Redundant communication system and redundant communication system restoration method |
| DE102017113564A1 (en) * | 2016-06-20 | 2017-12-21 | Hyundai Motor Company | Operating method of a communication node for detecting connection errors in a network |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020099751A1 (en) | 2020-05-22 |
| FR3088786B1 (en) | 2022-01-21 |
| FR3088786A1 (en) | 2020-05-22 |
| EP3881497A1 (en) | 2021-09-22 |
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