WO2021219337A1 - Erkennen von fehlern in einem computernetzwerk - Google Patents
Erkennen von fehlern in einem computernetzwerk Download PDFInfo
- Publication number
- WO2021219337A1 WO2021219337A1 PCT/EP2021/059157 EP2021059157W WO2021219337A1 WO 2021219337 A1 WO2021219337 A1 WO 2021219337A1 EP 2021059157 W EP2021059157 W EP 2021059157W WO 2021219337 A1 WO2021219337 A1 WO 2021219337A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- coupling element
- data packets
- network
- coupling
- control unit
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/28—Flow control; Congestion control in relation to timing considerations
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1867—Arrangements specially adapted for the transmitter end
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/02—Ensuring safety in case of control system failures, e.g. by diagnosing, circumventing or fixing failures
- B60W50/0205—Diagnosing or detecting failures; Failure detection models
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/0098—Details of control systems ensuring comfort, safety or stability not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/04—Monitoring the functioning of the control system
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W60/00—Drive control systems specially adapted for autonomous road vehicles
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0033—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the transmitter
- H04L1/0035—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the transmitter evaluation of received explicit signalling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W2050/0001—Details of the control system
- B60W2050/0002—Automatic control, details of type of controller or control system architecture
- B60W2050/0004—In digital systems, e.g. discrete-time systems involving sampling
- B60W2050/0006—Digital architecture hierarchy
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/02—Ensuring safety in case of control system failures, e.g. by diagnosing, circumventing or fixing failures
- B60W50/0205—Diagnosing or detecting failures; Failure detection models
- B60W2050/021—Means for detecting failure or malfunction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2306/00—Other features of vehicle sub-units
- B60Y2306/15—Failure diagnostics
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L2001/0092—Error control systems characterised by the topology of the transmission link
- H04L2001/0097—Relays
Definitions
- the invention relates to a device and a method for detecting errors and anomalies in a computer network.
- automated driving can be understood to mean driving with automated longitudinal or lateral guidance or autonomous driving with automated longitudinal and lateral guidance.
- automated driving includes automated driving with any degree of automation. Exemplary degrees of automation are assisted, partially automated, highly automated or fully automated driving. These degrees of automation were defined by the Federal Highway Research Institute (BASt) (see BASt publication “Research compact”, edition 11/2012). With assisted driving, the driver continuously performs the longitudinal or lateral guidance while the system executes the other function in each case assumes certain limits.
- BASt Federal Highway Research Institute
- the system takes over the longitudinal and lateral guidance for a certain period of time and / or in specific situations, whereby the driver has to constantly monitor the system as with assisted driving.
- highly automated driving FIAF
- the system takes over the longitudinal and lateral guidance for a certain period of time without the driver having to constantly monitor the system; however, the driver must be able to take control of the vehicle within a certain period of time.
- VAF fully automated driving
- the system can automatically cope with driving in all situations for a specific application; a driver is no longer required for this application.
- the above-mentioned four degrees of automation according to the definition of the BASt correspond to the SAE levels 1 to 4 of the standard SAE J3016 (SAE - Society of Automotive Engineering).
- HAF highly automated driving
- SAE J3016 provides for SAE level 5 as the highest degree of automation, which is not included in the definition of BASt.
- SAE level 5 corresponds to driverless driving, in which the system can automatically cope with all situations like a human driver during the entire journey; a driver is generally no longer required.
- a first aspect of the invention relates to a device for detecting errors or anomalies in a computer network.
- the computer network in particular an Ethernet network, comprises at least one coupling element (connecting element), in particular a switch or hub.
- Connecting element in particular a switch or hub.
- Switch from English for “switch”, “toggle switch” or “switch”, also called network switch or distributor
- switches describes a coupling element in computer networks that connects network segments with one another. Within a segment (broadcast domain), it ensures that data packets reach their destination.
- switch generally refers to a multiport bridge, i.e. an active network device that forwards frames based on information from the data link layer (layer 2) of the OSI model. Sometimes the more precise terms bridging hub or switching hub are used. In the IEEE 802.3 standard, the function is called MAC Bridge.
- Switches that also process data on the network layer (layer 3 and higher) are often referred to as layer 3 switches or multilayer switches and can fulfill the function of a router.
- the coupling task comes in non-Ethernet networks to a so-called gateway, which can connect the heterogeneous network to one another in a similar way to a router or switch.
- the coupling element connects at least two network participants to one another, wherein a network participant can also be a further coupling element.
- the coupling element comprises a memory for an actual configuration of the coupling element and, depending on this actual configuration, decides whether it forwards or discards data packets.
- the device comprises a target configuration for the coupling element and is set up to compare the actual configuration with the target configuration.
- the comparison between the target configuration and the actual configuration can take place once or several times, the comparison in particular being repeated regularly.
- the invention is based on the knowledge that, due to errors such as external disturbances, the actual configuration in the memory of the coupling element can be falsified, which can lead to undesired behavior when forwarding or discarding data packets.
- the coupling element can have a behavior that differs from that specified by the configuration due to external influences, systematic or random errors.
- the actual configuration By comparing the actual configuration with the target configuration, it can be determined at least in a snapshot whether the actual configuration has changed due to an error compared to the target configuration.
- the target configuration can also be changed due to an error, the probability that both the actual configuration and the target configuration have the same error at the time of the comparison is extremely low and can be reduced to any technical level using coding measures.
- the device is a network participant connected to the coupling element.
- the device can also have access to diagnostic counters of the coupling element, for example to be able to determine when, which and how many data packets were discarded and why.
- this mechanism can be used to ensure the integrity of certain configuration items.
- the device is set up to send a predetermined number of data packets, which are suitable for testing configuration items of the coupling element for network separation of the primary and secondary control units, via the coupling element to another network participant at a predetermined time, the number of those discarded by the coupling unit To determine data packets, and to compare the number of data packets sent to the other network subscriber with the number of data packets discarded by the coupling unit.
- Suitable data packets are those with which the correctness of individual components of the configuration can be tested, for example packets with a non-configured VLAN should be discarded.
- the knowledge of the target system behavior i.e. a signature of a network of integrity, can also be used to advantage.
- the invention is based on the knowledge that the number of data discarded by an error-free coupling element is defined with the configured limits (e.g. a defined amount of data per time) or other configurable properties or filter rules as well as by the performance of the coupling element itself.
- the configuration of the coupling element specifies at least an upper limit for the data packets forwarded by the coupling element within a specified time, in particular by specifying a data rate, for example in the unit Mbit / s.
- Traffic shaping describes a type of queue management in packet-switched data networks, in which data packets are delayed or discarded according to certain criteria in order to meet certain requirement profiles. This function is carried out by the interaction of a network scheduler and a network shaper and is basically a form of data rate limitation. Traffic shaping is unidirectional and usually memoryless, which means that, in contrast to data flow control, it works without control information from the other side.
- Traffic policing is a traffic flow procedure similar to traffic shaping, with the difference that it relates to incoming data packets and installs rules that allow non-compliant data packets to be destroyed. In contrast to traffic shaping, no packets are temporarily stored, but records are kept of how often the policeman has destroyed packets.
- the configuration of the coupling element gives characteristic upper limits for the forwarding of the data packets received from a network participant within a predetermined time (for example through traffic policing), and / or upper limits for the forwarding of the data packets sent to the network participant within a predetermined time Data packets (e.g. through traffic shaping).
- the upper limits can in particular be chosen so that an integral network and its characteristic traffic signature are not affected, anomalous traffic or incorrect configuration are recognized and packets belonging to an atypical traffic pattern are discarded. These packet losses can be used as an indicator for the integrity of the network.
- the useful traffic can also be designed in such a way that the selected upper limits can be narrower and more sensitive. This can be implemented, for example, by "blending" a short-term high data rate over a longer time interval in order to avoid traffic peaks.
- the device is set up to compare the difference between the number of data packets sent to the other network subscriber and the number of data packets discarded by the coupling unit with at least one upper limit for the data packets forwarded by the coupling element within a predetermined time.
- the invention is based on the knowledge that the comparison allows conclusions to be drawn about a faulty configuration of the coupling unit.
- the coupling element consists of a large number of technical elements that together form a chain of effects. The configuration is only part of this chain of effects.
- the comparison allows conclusions to be drawn about a fault in the complete functional chain within the coupling element which can be recognized by the measure and which causes a deviation from the target function.
- any comparisons are made with the highest available ASIL integrity.
- the comparisons are triggered by an element external to the action chain that has been developed with the required integrity (e.g. in accordance with ISO 26262 or IEC 61508) and the results are also read back by this.
- the comparison takes place within the integral element external to the functional chain.
- the selected pattern of querying, reading back and possibly necessary test data sent must be chosen so complex that an E / E error within the chain of effects can generate it randomly or systematically with sufficient unlikely thereto .
- individual elements within the functional chain which are checked by means of an integral element external to the functional chain, can also be developed in accordance with the required integrity.
- the error cases avoided in this way then no longer have to be absorbed by the higher-level measures that are carried out by the element external to the functional chain. This can lead, for example, to a reduction in the requirements for the pattern used for querying, reading back and possibly necessary test data.
- Another advantageous embodiment of the invention is a driving system for automated driving for a motor vehicle, the driving system comprises a primary control unit for automated driving and a secondary control unit for automated driving.
- the division of the automated driving function between a primary control unit and a secondary control unit can be carried out, for example, on the basis of functional safety requirements that require a redundant system structure.
- the primary control unit and the secondary control unit each comprise a device according to one of the preceding claims and a coupling element, the coupling elements being connected to one another.
- the configuration of the coupling elements specifies an upper limit for the forwarding of the data packets received from a network subscriber within a specified time and an upper limit for the forwarding of the data packets sent to the network subscriber within a specified time, the upper limit for the forwarding of the is lower or higher than the upper limit for the forwarding of the data packets received by a coupling element within a predetermined time.
- the invention is based on the knowledge that, through the selected ratio of the two upper limits to one another, an error within an effective chain within the two coupling elements, in particular a faulty configuration of the two coupling units, can be determined.
- the primary control unit and the secondary control unit each comprise a device according to one of claims 2, 3, 4 or 5, the predetermined point in time prior to activation of an automated driving mode for the motor vehicle and / or during an active one automated driving mode for the motor vehicle.
- the invention is based on the knowledge that an error detection by means of the invention is only a snapshot and an error can occur shortly after the error detection.
- a suitable point in time would be, for example, shortly before the driving task is handed over from the driver to the vehicle and, if possible, during the automated journey.
- An unsuitable point in time would be if the vehicle is in rest mode, for example, i.e. the boundary conditions do not correspond to the boundary conditions during a highly automated journey.
- the repetition frequency of the checking of the invention / measure (shaping / policing) must be chosen so that the assumed error rate which leads to its ineffectiveness multiplied by the probability of occurrence of a babbling idiot within the monitoring interval is sufficiently small is to meet the integrity requirements. If it is not sufficient, the monitoring interval must be reduced.
- the device of a control unit is set up to send a data packet with low priority to the respective other device via the coupling element of this control unit and the coupling element of the other control unit at at least one predetermined point in time, the priority of the data packet being selected such that at every unexpected communication that displaces the useful communication, for example, the data packet is discarded by one of the coupling elements between the two coupling units, and the respective other device is set up to essentially expect the receipt of this data packet at the specified time.
- a second aspect of the invention relates to a method for detecting errors in a computer network, the network comprising at least one coupling element that connects at least two network participants to one another, the coupling element comprises a memory for an actual configuration of the coupling element, the coupling element depending on the Actual configuration forwards or discards data packets.
- One step of the method is to compare the actual configuration with a target configuration for the coupling element.
- FIG. 1 shows an exemplary embodiment of the driving system according to the invention
- FIG. 2 shows an exemplary curve of data transmission rates.
- FIG. 1 shows a driving system for automated driving for a motor vehicle, the driving system comprising a primary control unit hPAD for automated driving and a secondary control unit mPAD for automated driving.
- the primary control unit hPAD and the secondary control unit mPAD each comprise a device V1, V2 according to the invention and a coupling element S1, S2, the coupling elements S1, S2 being connected to one another.
- the coupling elements S1, S2 and the devices V1, V2 form a computer network, the coupling elements S1, S2 and the devices V1, V2 being network participants.
- the coupling elements S1, S2 each include a memory for an actual configuration of the coupling element S1, S2, and the coupling elements S1, S2 are each set up to forward or discard data packets depending on the actual configuration.
- the devices V1, V2 each include a target configuration for the respective coupling element S1, S2 of their control unit hPAD, mPAD and the devices V1, V2 are each set up to compare the actual configuration with the target configuration.
- the devices V1, V2 are each set up to send a predetermined number ds of data packets via the coupling elements S1, S2 to another network participant, for example to the respective other device V1, V2, at a predetermined point in time.
- the predetermined point in time is before an automated driving mode for the motor vehicle is activated and / or during an active automated driving mode for the motor vehicle.
- the configuration of the coupling elements gives at least one upper limit 01, 02 for the forwarding of the data packets received from a network subscriber within a predetermined time and one Upper limit for the forwarding of the data packets sent to the network subscriber within a predetermined time, the upper limit 01 for forwarding the data packets sent to the other coupling element S1, S2 within a predetermined time being lower than the upper limit 02 for forwarding the data packets sent by one Coupling element S1, S2 received data packets within a predetermined time.
- the devices V1, V2 are each set up to determine the number 11, I2) of the data packets discarded by the coupling unit S1, S2, and the difference between the number ds of the data packets sent to the other network subscriber and the number 11, I2 of the Coupling unit S1, S2 to compare discarded data packets with at least one upper limit 01, 02 for the data packets forwarded by the coupling element S1, S2 within a predetermined time.
- the devices V1, V2 of a control unit hPAD, mPAD are each set up, via the coupling element S1, S2 of this control unit hPAD, mPAD and the coupling element S1, S2 of the other control unit hPAD, mPAD, a data packet with low priority to the at least one predetermined point in time to send each other device V1, V2, the priority of the data packet being selected such that for every unexpected communication that suppresses useful communication, for example, between the two coupling units S1, S2, the data packet is discarded by one of the coupling elements S1, S2, and the respective other device V1, V2 is set up to essentially expect the receipt of this data packet at the predetermined point in time.
- Fig. 2 shows an exemplary course of data transmission rates.
- Data transmission rates in Mbit are plotted against time t.
- a data transmission level NL is shown, which is usually transmitted as a payload.
- This payload NL is lower than two upper limits 01, 02.
- the upper limit 01 for forwarding the data packets sent to the other coupling element S1, S2 within a predetermined time is lower than the upper limit 02 for forwarding the data packets sent by a coupling element S1, S2 within data packets received within a specified time.
- bursts B1, B2, B3 are shown. These result at predetermined times through the sending of a predetermined number ds of data packets by a device V1, V2 via a coupling element S1, S2 to another network subscriber.
- the burst B1 shows the number ds of the data packets actually sent by the device V1, V2. This number ds exceeds the two upper limits 01, 02. If the coupling elements S1, S2 were to work without errors, a number 11 of data packets would be discarded by the first coupling unit S1, S2. Only one burst B2 would thus arrive at the other coupling unit S1, S2. This other coupling unit S1, S2 would discard a number I2 of data packets, so that only one burst B3 would arrive at the other device V1, V2.
- the receiving device V1, V2 can compare the actually received data packets with a number of expected data packets resulting from the difference in the number ds of the data packets sent to the device and the upper limits 01, 02, it can be determined whether there is an error in the computer network, for example an error in the actual configuration of the coupling elements S1, S2. For example, if the number of data packets actually received is above the upper limit 02 for forwarding the data packets received from a network subscriber within a specified time, it can be concluded that there is an error in the actual configuration of the receiving coupling element S1, S2.
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Human Computer Interaction (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Small-Scale Networks (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US17/919,007 US20230336491A1 (en) | 2020-04-27 | 2021-04-08 | Identifying Errors in a Computer Network |
KR1020227034752A KR20220148905A (ko) | 2020-04-27 | 2021-04-08 | 컴퓨터 네트워크 내의 오류 식별 |
JP2022559605A JP2023521964A (ja) | 2020-04-27 | 2021-04-08 | コンピュータネットワークにおけるエラーの検知 |
CN202180030615.7A CN115443625A (zh) | 2020-04-27 | 2021-04-08 | 识别计算机网络中的错误 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102020111450.8 | 2020-04-27 | ||
DE102020111450.8A DE102020111450A1 (de) | 2020-04-27 | 2020-04-27 | Erkennen von Fehlern in einem Computernetzwerk |
Publications (1)
Publication Number | Publication Date |
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WO2021219337A1 true WO2021219337A1 (de) | 2021-11-04 |
Family
ID=75478045
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2021/059157 WO2021219337A1 (de) | 2020-04-27 | 2021-04-08 | Erkennen von fehlern in einem computernetzwerk |
Country Status (6)
Country | Link |
---|---|
US (1) | US20230336491A1 (de) |
JP (1) | JP2023521964A (de) |
KR (1) | KR20220148905A (de) |
CN (1) | CN115443625A (de) |
DE (1) | DE102020111450A1 (de) |
WO (1) | WO2021219337A1 (de) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1420317A2 (de) * | 2002-10-21 | 2004-05-19 | Rockwell Automation Technologies, Inc. | Systen und Verfahren zur Sicherheitsanalyse in einem Automasierungssystem zur Überprüfung und zum Lernen in einer industriellen Steuerungs-Umgebung |
EP3258661A1 (de) * | 2016-06-16 | 2017-12-20 | ABB Schweiz AG | Detektion von abnormalen konfigurationsänderungen |
WO2020035584A1 (de) * | 2018-08-17 | 2020-02-20 | Continental Automotive Gmbh | Gegen angriffe gesicherte netzwerkschnittstelle |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8392764B2 (en) | 2009-11-16 | 2013-03-05 | Cooper Technologies Company | Methods and systems for identifying and configuring networked devices |
JP5479408B2 (ja) | 2011-07-06 | 2014-04-23 | 日立オートモティブシステムズ株式会社 | 車載ネットワークシステム |
US9705918B2 (en) | 2012-05-22 | 2017-07-11 | Sri International | Security mediation for dynamically programmable network |
-
2020
- 2020-04-27 DE DE102020111450.8A patent/DE102020111450A1/de active Pending
-
2021
- 2021-04-08 CN CN202180030615.7A patent/CN115443625A/zh active Pending
- 2021-04-08 WO PCT/EP2021/059157 patent/WO2021219337A1/de active Application Filing
- 2021-04-08 JP JP2022559605A patent/JP2023521964A/ja active Pending
- 2021-04-08 US US17/919,007 patent/US20230336491A1/en active Pending
- 2021-04-08 KR KR1020227034752A patent/KR20220148905A/ko unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1420317A2 (de) * | 2002-10-21 | 2004-05-19 | Rockwell Automation Technologies, Inc. | Systen und Verfahren zur Sicherheitsanalyse in einem Automasierungssystem zur Überprüfung und zum Lernen in einer industriellen Steuerungs-Umgebung |
EP3258661A1 (de) * | 2016-06-16 | 2017-12-20 | ABB Schweiz AG | Detektion von abnormalen konfigurationsänderungen |
WO2020035584A1 (de) * | 2018-08-17 | 2020-02-20 | Continental Automotive Gmbh | Gegen angriffe gesicherte netzwerkschnittstelle |
Non-Patent Citations (1)
Title |
---|
"Forschung kompakt", November 2012 |
Also Published As
Publication number | Publication date |
---|---|
DE102020111450A1 (de) | 2021-10-28 |
JP2023521964A (ja) | 2023-05-26 |
CN115443625A (zh) | 2022-12-06 |
US20230336491A1 (en) | 2023-10-19 |
KR20220148905A (ko) | 2022-11-07 |
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