WO2024111175A1 - ネットワークシステム、およびネットワーク管理方法 - Google Patents
ネットワークシステム、およびネットワーク管理方法 Download PDFInfo
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- WO2024111175A1 WO2024111175A1 PCT/JP2023/028821 JP2023028821W WO2024111175A1 WO 2024111175 A1 WO2024111175 A1 WO 2024111175A1 JP 2023028821 W JP2023028821 W JP 2023028821W WO 2024111175 A1 WO2024111175 A1 WO 2024111175A1
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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
- H04L41/50—Network service management, e.g. ensuring proper service fulfilment according to agreements
- H04L41/5041—Network service management, e.g. ensuring proper service fulfilment according to agreements characterised by the time relationship between creation and deployment of a service
- H04L41/5054—Automatic deployment of services triggered by the service manager, e.g. service implementation by automatic configuration of network components
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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
- H04L41/12—Discovery or management of network topologies
Definitions
- the present invention relates to a network system and a network management method for deploying applications to multiple computing devices on a network.
- new or updated in-vehicle applications (hereafter simply referred to as apps) are delivered to the vehicle via a wireless network from a server such as the cloud.
- the delivered apps are then deployed to the vehicle's system and applied/executed.
- a vehicle system is made up of multiple electronic control units (ECUs) connected via a network.
- ECU is used as a general term for sensors such as cameras, actuators that operate the engine and steering, etc., and devices that perform calculations for control.
- the ECU sends and receives data via the in-vehicle network, and obtains information for vehicle control by calculating the data using apps. Sending and receiving data places a strain on the in-vehicle network, but the load on the in-vehicle network varies depending on the placement of the apps.
- Patent Document 1 discloses a method for selecting an ECU that will run an app when adding an app.
- an in-vehicle system equipped with multiple ECUs on which additional apps acquired by an app acquisition unit can be installed includes a request specification unit, a resource specification unit, and a selection unit.
- the request specification unit specifies requested resources, which are resources required by the additional app.
- the resource specification unit specifies provided resources, which are resources that can be provided by each ECU.
- the selection unit selects an ECU whose provided resources satisfy the requested resources as the installation destination for the additional app.
- Patent Document 1 can select the ECU where an app is to be placed based on the ECU's computational resources, but it cannot place apps while taking into account communication resources between ECUs, such as the load status of the in-vehicle network.
- the present invention has been made in consideration of the above problems, and its purpose is to provide a network system and a network management method that enable the placement of applications taking into account the computing resources of each computing device on the network and the communication resources between the computing devices.
- the present invention provides a network system that places an application on one of a plurality of computing devices on a network so as to satisfy the execution requirements of the application, the network system comprising: an application requirement storage unit that stores the execution requirements and communication requirements of the application; a free resource information storage unit that stores free resource information of the plurality of computing devices; an application placement selection unit that selects a computing device capable of executing the application from among the plurality of computing devices based on the execution requirements and the free resource information, and creates a list of computing device candidates for application placement; a topology information storage unit that stores topology information indicating the communication connection relationship of the plurality of computing devices; a communication performance information storage unit that stores communication performance information of each link of the network; a communication path selection unit that selects a communication path for the application when the application is placed on each computing device in the computing device candidate list for application placement based on the topology information, and creates a communication path candidate list; a performance verification unit that verifies whether the communication requirements are satisfied by each communication path
- the present invention also provides a network management method for placing an application on one of a plurality of computing devices on a network so as to satisfy the execution requirements of the application, the method comprising: an application requirement holding step for holding the execution requirements and communication requirements of the application; a free resource information holding step for holding free resource information of the plurality of computing devices; an application placement selection step for selecting a computing device capable of executing the application from among the plurality of computing devices based on the execution requirements and the free resource information, and creating a list of computing device candidates for application placement; a topology information holding step for holding topology information indicating the communication connection relationship of the plurality of computing devices; a communication performance information holding step for holding communication performance information of each link of the network; a communication path selection step for selecting a communication path for the application when the application is placed on each computing device in the computing device candidate list for application placement based on the topology information, and creating a communication path candidate list; a performance verification step for verifying whether the communication requirements are satisfied on each communication path in the communication path candidate list based on the
- the computing resources of each computing device and the communication resources between the computing devices are taken into consideration, thereby ensuring the execution and communication performance of the app, thereby enabling the app to operate stably.
- FIG. 1 is a diagram of the electrical and electronic architecture of an in-vehicle device incorporating an in-vehicle network system according to the present invention
- Hardware configuration diagram of domain ECU, zone ECU, central ECU, and gateway Functional block diagram of an in-vehicle network system according to the present invention is a diagram of the electrical and electronic architecture of an in-vehicle device incorporating an in-vehicle network system according to the present invention.
- ECU free resource information table held by free resource information holding unit Example of the configuration of OTA data received by the application requirement storage unit via the TCU Application requirement table held by the application requirement holding unit Topology information table held by the topology information holding unit An excerpt from the communication performance information table stored in the communication performance information storage unit Flowchart showing the operation of the application placement selection unit A list of ECU candidates for application placement that is the output of the application placement selection unit Flowchart showing the operation of the communication path selection unit A flowchart showing an example of detailed processing of step S209 in FIG. A flowchart showing an example of detailed processing of step S221 in FIG. 12. An example of the results of executing the process of FIG.
- FIG. 13 on a network of a zone architecture
- a list of application communication route candidates output from the communication route selection unit and input to the performance verification unit Flowchart showing the operation of the performance verification unit
- a flowchart showing an example of detailed processing of step S302 in FIG. A flowchart showing an example of detailed processing of step S303 in FIG. 16.
- a communication path list output from the performance verification unit and input to the configuration application unit Flowchart showing the operation of the setting application unit
- FIG. 13 is a configuration diagram of a performance verification unit in the second embodiment.
- 17 is a flowchart showing the operation of step S305 in FIG. 16 among the operations of the performance verification unit in the second embodiment.
- a functional block diagram of an in-vehicle network system according to a third embodiment.
- Application requirement table held by the application requirement holding unit in the fourth embodiment Application requirement table held by the application requirement holding unit in the fourth embodiment
- Application requirement table held by the application requirement holding unit in the fifth embodiment Flowchart showing the operation of the performance verification unit
- FIG. 1 shows the electrical and electronic architecture of an in-vehicle device equipped with an in-vehicle network system according to the present invention.
- Two configurations are shown here as representative electrical and electronic architectures, but the application of the present invention is not limited to these.
- Figure 1(a) shows the logical structure of an architecture called domain-specific architecture. This is a method of classifying ECUs (electronic control units) inside a vehicle 1 into functional divisions called domains, and systematically connecting ECUs belonging to the same domain.
- a domain ECU 3 is placed for each domain to manage that domain.
- the domain ECUs 3 are connected to each other via a gateway 2 to enable communication between domains.
- domains examples include the ADAS (Advanced Driver Assistance System) domain, which is responsible for safe driving assistance; the PT/CH (Power Train/Chassis) domain, which controls the vehicle's forward/rearward and left/right movements; the BODY domain, which controls electrical equipment such as power windows; and the Infotainment domain, which controls navigation and audio.
- ADAS Advanced Driver Assistance System
- PT/CH Power Train/Chassis
- BODY which controls electrical equipment such as power windows
- Infotainment domain which controls navigation and audio.
- An ADAS ECU 3a, PT/CH ECU 3b, BODY ECU 3c, and Infotainment ECU 3d are placed for each domain.
- ECUs 4, 5 such as sensors 4a-4d (hereinafter collectively referred to as 4) and actuators 5a-5d (hereinafter collectively referred to as 5) are connected to the domain ECU 3 via links 6a-6d (hereinafter collectively referred to as 6) appropriate for each domain, such as a Controller Area Network (CAN) or a Local Interconnect Network (LIN).
- CAN Controller Area Network
- LIN Local Interconnect Network
- Multiple ECUs 4, 5 may be connected to a single link 6.
- a TCU (Telematics Control Unit) 7 that communicates with servers outside the vehicle, clouds, etc. via a wireless network is connected to the gateway 2.
- ADAS ECUs and Infotainment ECUs use hardware with high processing performance to handle large volumes of data such as video.
- PT/CH ECUs use highly reliable hardware to ensure a safe direct connection.
- Figure 1(b) shows the physical configuration of an architecture called zone architecture.
- zone architecture This is a method of classifying ECUs 4, 5 according to their spatial positions inside the vehicle 1, and connecting them to zone ECUs 9a to 9d (hereinafter collectively referred to as 9) that manage these positions. It is composed of one or more zone ECUs 9, a central ECU 8 that is connected to the zone ECU 9 and executes multiple applications across multiple domains, and sensors 4 and actuators 5 that are connected to the zone ECU 9.
- the zone ECUs 9 are arranged corresponding to positions (zones) such as front, rear, left and right in the vehicle, and are connected to sensors 4 or actuators 5, or both, that are close to the installation position.
- zone ECUs 9 are connected to other zone ECUs 9 by shared links 10 that use a common communication method between domains.
- the common communication method is assumed to be a switching network using Ethernet (registered trademark).
- the TCU 7 is connected to the central ECU 8 or any zone ECU 9, but Figure 1(b) shows an example of connection to the central ECU 8.
- Figure 2 shows the hardware configuration of the domain ECU 3, zone ECU 9, central ECU 8, and gateway 2.
- the thick lines in Figure 2 represent the common communication method, which is the connection method between communication devices 2 in the zone architecture or domain architecture, and the thin lines represent other communication methods.
- FIG. 2(a) shows the hardware configuration of the domain ECU 3.
- a CPU Central Processing Unit
- FIG. 1 shows the hardware configuration of the domain ECU 3.
- a CPU Central Processing Unit
- FIG. 1 shows the hardware configuration of the domain ECU 3.
- a CPU Central Processing Unit
- FIG. 1 shows the hardware configuration of the domain ECU 3.
- a CPU Central Processing Unit
- FIG. 1 shows the hardware configuration of the domain ECU 3.
- a CPU Central Processing Unit
- memory 12 for holding data used for calculations by the CPU 11.
- From the CPU 11 there are links for connecting to the gateway 2 and to the sensors 4 and actuators 5.
- FIG. 2(b) shows the hardware configuration of the zone ECU 9.
- the zone ECU 9 has a network switch 13 that accommodates a shared link 10 for connecting to other zone ECUs 9 or for connecting to the sensor 4 or actuator 5.
- the zone ECU 9 also has a CPU 11 for processing information received from the sensor 4 and actuator 5 or the shared link 10, and is connected to the network switch 13.
- the CPU 11 is also connected to a memory 12. If the sensor 4 and actuator 5 support a common communication method, they may be directly connected to the network switch 13. If the sensor 4 and actuator 5 do not support a common communication method, they can be connected to the CPU 11 and converted to the common communication method.
- FIG. 2(c) shows the hardware configuration of the gateway 2 in the domain-specific architecture.
- the gateway 2 includes a CPU 11, a memory 12, and a network switch 13 for connecting to the domain ECU 3.
- FIG. 2(d) shows the hardware configuration of the central ECU 8 in the zone-specific architecture.
- the central ECU 8 has a configuration similar to that of the gateway 2, and includes a CPU 11, memory 12, and a network switch 13 for connecting to the zone ECUs 9.
- FIG. 3 is a functional block diagram of an in-vehicle network system according to the present invention.
- the functional blocks may be implemented as independent devices not shown in FIG. 1, or may be implemented as software and executed by any of the ECUs in FIG. 1.
- the present invention comprises the following functional blocks: free resource information holding unit 20, application requirement holding unit 21, topology information holding unit 22, communication performance information holding unit 23, application placement selection unit 24, communication path selection unit 25, performance verification unit 26, and setting application unit 27.
- the free resource information storage unit 20 periodically collects and stores information about the resource status within each ECU, such as free CPU capacity and free memory capacity.
- the application requirement storage unit 21 stores execution requirements for applications executed by each ECU in the vehicle.
- the application requirement storage unit 21 stores requirements for applications that are pre-installed when the vehicle is shipped, and requirements for applications added via OTA are received via the TCU 7 together with OTA data. Specific examples of requirements will be explained using Figure 6.
- the topology information storage unit 22 stores topology information that indicates the connection relationships of the in-vehicle network.
- the communication performance information storage unit 23 stores performance information of the currently ongoing communication for each link in the in-vehicle network, i.e., the communication resource status between ECUs.
- the application placement selection unit 24 determines candidate ECUs for placement of the application based on the resource status inside each ECU obtained from the free resource information storage unit 20 and execution requirement information related to the application's ECU internal resources (computational resources) obtained from the application requirement storage unit 21.
- the communication path selection unit 25 determines communication path candidates for communication performed by the app based on the candidate ECUs for placement of the app determined by the app placement selection unit 24, the communication destination information of the app obtained from the app requirement storage unit 21, and the topology information of the in-vehicle network obtained from the topology information storage unit 22.
- the performance verification unit 26 verifies the communication performance of the application when the communication route candidate is selected for the application's communication route candidate determined by the communication route selection unit 25, based on the application's communication requirements acquired from the application requirement storage unit 21 and the communication performance information acquired from the communication performance information storage unit 23. From the route candidates that satisfy the communication performance of the application as a result of the verification, one communication route to be actually used is selected.
- the setting application unit 27 applies the communication path determined by the performance verification unit 26 to the in-vehicle network. To this end, it obtains the data transmission/reception destination addresses of the application from the application requirement storage unit 21, and sets transfer rules in the network switch 13 inside the ECU on the path.
- FIG. 4 shows the intra-ECU free resource information table 30 held by the free resource information holding unit 20.
- the intra-ECU free resource information table 30 holds information in a computational resource column 32, a memory resource column 33, and a spec column 34 for an ECU column 31.
- the specs refer to the characteristics of an ECU, such as high performance and high reliability.
- FIG. 5 shows an example of the configuration of OTA data 40 received by application requirement storage unit 21 via TCU 7.
- OTA data 40 includes a header 41 including the application ID, version information, etc., application data 42 storing the code of the application itself in binary format, etc., and metadata 43 related to the application referenced in the present invention.
- Metadata 43 holds execution requirements 53, communication specifications 58, and communication requirements 64 similar to those in application requirement table 50 shown in FIG. 6, corresponding to communication ID 54, which is an identification number for communication in the application.
- communication ID 54 which is an identification number for communication in the application.
- an application performs multiple communications, it has multiple sets of communication ID, execution requirements 53, communication specifications 58, and communication requirements 64. Details of execution requirements 53, communication specifications 58, and communication requirements 64 are the same as those in FIG. 6, and will be explained together with FIG. 6.
- Application requirement table 50 holds an application column 51 holding the ID of an application, a deployed flag 52 indicating that the application has been deployed to any ECU, execution requirements 53 holding requirements related to ECU internal resources (computational resources), communication specifications 58 holding specifications for communication between ECUs, and communication requirements 64 holding requirements related to communication resources between ECUs.
- Execution requirements 53 include a computational resource column 55, a storage resource column 56, and a spec column 57.
- communication specifications 58 include, as application requirements related to communication between ECUs, a communication direction column 59 indicating whether the application is sending or receiving, a communication partner column 60 identifying the communication partner of the application, a communication cycle column 61, a packet size column 62, and application identification information 63 which is information for identifying the application from a communication packet.
- application identification information include the CAN ID of a CAN, source and destination MAC addresses in Ethernet, source and destination IP addresses in IP (Internet Protocol), and source and destination port numbers in TCP (Transmission Control Protocol) or UDP (User Datagram Protocol).
- the communication requirements 64 include a communication bandwidth column 65, a communication delay column 66, a jitter column 67, and a discard rate column 68. If a single application performs multiple communications, the application uses multiple rows to represent the multiple communications, as in application A3. Also, if an application does not perform communications, only the execution requirements can be set for the application, as in application A4.
- FIG. 7 shows a topology information table 70 held by the topology information holding unit 22.
- the topology information table 70 has a link column 71 representing each link connecting ECUs in the in-vehicle network, a type column 72 indicating whether the type of link is a bus type (a form in which multiple ECUs are connected to one common communication path) or a mesh type (a form in which one ECU is connected one-to-one to another ECU), and a connection information column 73 holding the IDs of the ECUs connected to the link.
- a link column 71 representing each link connecting ECUs in the in-vehicle network
- a type column 72 indicating whether the type of link is a bus type (a form in which multiple ECUs are connected to one common communication path) or a mesh type (a form in which one ECU is connected one-to-one to another ECU)
- a connection information column 73 holding the IDs of the ECUs connected to the link.
- Figure 8 shows an excerpt from a communication performance information table 80 held by the communication performance information holding unit 23.
- the communication performance information table 80 has a link column 81, a communication direction 82, a total bandwidth column 83 indicating the total bandwidth of the link for each link and communication direction, a used bandwidth column 84 indicating the bandwidth used by existing applications, a delay time column 85 indicating the maximum delay time, a jitter column 86, a discard rate column 87, and a buffer usage column 88.
- step S100 the application requirement table 50 is obtained from the application requirement storage unit 21.
- step S101 the following processing is looped for each application registered in the application requirement table 50.
- step S102 the placement flag of the target application is checked, and if the application has been placed (Yes), nothing is done and the process moves to the next application. If the application has not been placed (No), steps S103 and after are executed.
- step S103 it is checked whether the execution requirements of the target application have been registered in the application requirement table 50.
- step S108 the predefined ECU candidate list is sorted in descending order of total resources, and the ECU is set as a candidate ECU for placement of the application, and the process moves to the next application. If the application has been registered (Yes), the following processing is performed.
- step S104 the ECU free resource information table 30 is obtained from the free resource information storage unit 20.
- step S105 from among the ECUs in the ECU free resource information table 30, ECUs whose computational and memory resources are greater than the computational and memory resources in the execution requirements of the app and that satisfy the specifications required by the app are selected, thereby selecting ECUs that satisfy the execution requirements required by the app, and creating a list of candidate ECUs for placement.
- step S106 the ECU candidate list is sorted in descending order of free resources to determine the candidate ECUs for placement of the app.
- step S107 it is determined whether the loop for the app has ended, and if processing has been completed for all apps, this processing ends.
- FIG. 10 shows the application placement ECU candidate list 90, which is the output of the application placement selection unit 24.
- the application placement ECU candidate list 90 holds placement ECU candidates 92 for each application sequence 91.
- the application placement ECU candidate list 90 becomes the input to the next communication path selection unit 25.
- step S200 the application placement ECU candidate list 90 is obtained from the application placement selection unit 24.
- step S201 the topology information table 70 of the in-vehicle network is obtained from the topology information storage unit 22.
- step S202 it is confirmed whether the topology information of the in-vehicle network is included in the topology information table 70, and if not (No), default topology information defined in advance is used in step S204. If the topology information is included in step S202 (Yes), the topology information in the topology information table 70 is used in step S203.
- step S206 communication partner information is obtained from the application requirement storage unit 21 for each communication data (packet) of the application.
- communication partner information collectively refers to the data sender in received data and the data destination in transmitted data.
- step S207 the communication partner information is checked, and if information about the communication partner is not included (No), it is determined that communication will not be performed and the processing proceeds to the next application. If information about the communication partner is included in step S207 (Yes), the processing proceeds to step S208 and subsequent steps.
- step S208 a loop is started for the placement ECU candidates 92 in the application placement ECU candidate list 90.
- step S209 route candidates from the data transmission source to the data reception destination are obtained by a process defined separately. When the process of S209 is completed for all placement ECU candidates, the loop for the placement ECU candidates is ended in S210.
- step S211 If processing has been completed for all apps in the app placement destination ECU candidate list 90, the loop ends in step S211, and processing by the communication path selection unit 25 ends.
- FIG. 12 is a flowchart showing an example of detailed processing of step S209 in FIG. 11.
- step S220 a loop is started for each communication belonging to the application.
- step S221 a route from the source ECU to the destination ECU is searched for using a process defined separately.
- step S222 if the destination ECU is reached, the searched route is added to a route candidate list.
- step S223 When processing has been completed for all communication data, the loop is ended in step S223, and this process is terminated.
- FIG. 13 is a flowchart showing an example of detailed processing of step S221 in FIG. 12.
- a path from the source ECU to the destination ECU is searched for using a breadth-first search, but other search algorithms such as a depth-first search may also be used.
- FIG. 14 is an example of a search list 100 used in this search process.
- the search list 100 has a phase 101 indicating the stage of the search, communication path candidates 102 indicating route candidates that have already been searched for from the source ECU to the destination ECU, and a state 103 indicating the state of the communication path candidates 102.
- step S230 the variable "phase" is set to 0, the source ECU is selected with a status of incomplete, and added to the first entry in the search list.
- step S231 the phase is incremented by 1.
- step S232 from among the communication path candidates 102 whose status is incomplete in the search list of the previous phase, ECUs that are directly connected in the topology to the ECU at the end of the path candidates are extracted, and the ECU added to the end of the communication path candidates 102 is added to the search list 100 of the current phase.
- step S233 a loop is started for the search list 100 of the current phase created as described above.
- step S234 the status of the communication path candidate 102 is checked.
- the communication path status 103 is set to "destination reached" in step S235, and is added to the route candidate list, which is the output of the communication path selection unit 25, in step S236.
- step S234b the end of the communication path candidate 102 is a searched ECU in step S234 (S234b), that is, if the communication path candidate includes multiple identical ECUs
- the communication path candidate status 103 is set to "searched and reached" in step S237.
- step S234 S234c
- the communication path candidate status 103 is set to incomplete in step S238. Then, if processing has been completed up to the end of the search list of the current phase, the loop ends in step S239.
- step S240 it is checked whether there are any communication path candidates 102 whose status is incomplete in the search list of the current phase, and if there are any communication path candidates 102 whose status is incomplete, the process returns to step S231 to continue. If there are no communication path candidates 102 whose status is incomplete, that is, if the search for the topology of the in-vehicle network is completed, this process ends.
- Figure 14 shows an example of the results of executing the process of Figure 13 on a network of zone architecture. For those whose status was incomplete in the previous phase, in the current phase, a list of communication path candidates is created by adding the next reachable ECU. Then, in phase 5, the status becomes destination reached (ECU C shown in underline) or searched and reached (ECU A shown in italics), and the search is completed.
- FIG. 15 shows the application communication path candidate list 110, which is output from the communication path selection unit 25 and input to the performance verification unit 26.
- the application communication path candidate list 110 holds communication path candidates 112 for an application sequence 111.
- FIG 16 is a flowchart showing the operation of the performance verification unit 26.
- step S300 the communication route candidate list 110 for the application is received from the communication route selection unit 25.
- step S301 a loop is performed for the application listed in the communication route candidate list 110.
- step S302 communication requirement information for the application is obtained from the application requirement storage unit 21 using a procedure defined separately.
- step S303 communication performance information for each link on the in-vehicle network is obtained from the communication performance information storage unit 23 using a procedure defined separately.
- step S304 a loop is performed for the route candidates for the application listed in the communication route candidate list 110.
- step S305 the communication performance of the application when using the selected route is evaluated from the communication performance information of the route candidate and the communication requirements of the application using a procedure defined separately.
- the evaluation result is determined in step S306, and if the communication requirements of the application cannot be met (No), the loop for the route candidate list is continued. If a communication path that satisfies the communication requirements of the application exists in step S306 (Yes), the application placement is deemed successful in step S310, and communication path information is output to the setting application unit 27.
- step S311 the information in the free resource information storage unit 20 and the communication performance information storage unit 23 is updated. If a communication path that satisfies the communication requirements of the application does not exist and the loop ends in step S307, the application placement is deemed to have failed in step S308. Finally, these processes are executed in step S309 until the loop for each application ends.
- FIG. 17 is a flowchart showing an example of detailed processing of step S302 in FIG. 16. After this processing, the processing is related to a specific application.
- step S320 communication requirements are obtained from the application requirement storage unit 21 for each communication data of the application. Note that communication requirements are not obtained for applications that do not communicate.
- step S321 it is checked whether the obtained communication requirement data includes communication requirements of the application, such as communication bandwidth and delay. If communication requirements are included (Yes), in step S322, the communication requirements of the application obtained from the application requirement storage unit 21 are used. If communication requirements are not included in step S321 (No), in step S323, predefined default communication requirements are used.
- FIG. 18 is a flowchart showing an example of detailed processing of step S303 in FIG. 16.
- step S330 communication performance information for each link on the in-vehicle network is obtained from the communication performance information storage unit 23.
- step S331 a loop is started for each link on the in-vehicle network.
- step S332 it is checked whether or not any communication performance information is included in the communication performance information obtained for each link. If communication performance information is included (Yes), in step S333, the communication performance information obtained from the communication performance information storage unit 23 is used. If communication performance information is not included in step S332 (No), in step S335, it is assumed that no communication is taking place on that link. Once processing has been completed for all links, the loop ends in step S334.
- FIG 19 is a flowchart showing an example of detailed processing of step S305 in Figure 16.
- four values, communication bandwidth, delay, jitter, and packet loss rate are calculated by numerical calculation as the communication performance on the link for each application. Since the four values can be calculated independently, the following steps are allowed to be executed either consecutively or in parallel.
- step S340 a loop is started for each link constituting a route candidate. Steps S341 to S344 can be executed independently.
- the communication bandwidth of the application is added to the bandwidth used on the link to calculate the communication bandwidth when the application is added.
- the delay when the application is added is calculated by adding the packet length of the application to the delay on the link.
- step S343 since the jitter is defined by the maximum packet length transmitted on the link, the jitter on the link is compared with the packet length of the application, and if the packet length of the application is greater than the jitter on the link, the jitter is updated to the packet length of the application.
- step S344 because the packet loss rate occurs due to overflow of the transmission buffer on the link, the buffer usage on the link plus the packet length of the application is set as SUM, and if SUM is greater than the buffer size, the packet loss rate is calculated using the formula (SUM - buffer size) / SUM.
- step S345 the loop is terminated for each link that constitutes the route candidate.
- FIG. 20 shows the communication path list 120 that is output from the performance verification unit 26 and input to the setting application unit 27.
- the communication path list 120 holds the communication path 122 selected by the performance verification unit 26 for each application sequence 121.
- step S400 the included applications are extracted from the communication path list 120 received from the performance verification unit 26 to obtain an application list.
- step S401 the identification information of the applications included in the obtained application list is obtained from the application requirement storage unit 21.
- step S402 the communication path information is reconstructed, and a communication path setting table 130 is generated in which, for each ECU, the identification information of the application through which the communication data passes corresponds to the next destination ECU of the communication data.
- An example of the configuration of the communication path setting table 130 will be described with reference to FIG. 22.
- step S403 the process of step S404 is looped for each ECU in the communication path setting table 130.
- step S404 the application identification information and the next destination ECU are set for the ECU.
- step S405 the loop for the ECU in the communication path setting table 130 is ended.
- the applications included in the application list are placed in the placement destination ECU.
- the destination ECU is the ECU that is at the beginning of the transmitted data or the end of the received data on the application's communication path.
- FIG. 22 shows an example of the configuration of the communication path setting table 130 used inside the setting application unit 27.
- the communication path setting table 130 holds, for an ECU column 131, application identification information 132 of the application through which communication data passes and the next destination ECU 133. Note that for data received by an application in the ECU where the application is located, the destination is represented as the CPU.
- the above operations allow the in-vehicle network system to place apps in the ECU when a new app is added via OTA, taking into account the computational and storage resources within the ECU and the communication resources between ECUs. App placement can also be performed in a similar manner when updating an existing app via OTA.
- the system in a network system in which an application is placed on one of a plurality of computing devices 3, 9 present on a network so as to satisfy an execution requirement 53 of the application, the system includes an application requirement holding unit 21 which holds the execution requirement 53 and communication requirement 64 of the application, a free resource information holding unit 20 which holds free resource information of the plurality of computing devices 3, 9, an application placement selection unit 24 which selects a computing device capable of executing the application from the plurality of computing devices 3, 9 based on the execution requirement 53 and the free resource information, and creates an application placement destination computing device candidate list 90, a topology information holding unit 22 which holds topology information indicating a communication connection relationship of the plurality of computing devices 3, 9, and a network configuration information holding unit 23 which holds the network configuration information of the plurality of computing devices 3, 9.
- the communication path selection unit 25 which selects a communication path of the application when the application is placed on each computing device in the application placement destination computing device candidate list 90 based on the topology information, and creates a communication path candidate list 110; a performance verification unit 26 which verifies whether or not the communication requirement 64 is satisfied on each communication path in the communication path candidate list 110 based on the communication performance information and the communication requirement 64; and a setting application unit 27 which deploys the application on a computing device corresponding to a communication path verified by the performance verification unit 26 to satisfy the communication requirement 64 among the computing devices in the application placement destination computing device candidate list 90.
- the method in a network management method for placing an application on one of a plurality of computing devices 3, 9 present on a network so as to satisfy an execution requirement 53 of the application, the method includes an application requirement holding step for holding the execution requirement 53 and communication requirement 64 of the application, an available resource information holding step for holding available resource information of the plurality of computing devices 3, 9, an application placement selection step for selecting a computing device capable of executing the application from the plurality of computing devices 3, 9 based on the execution requirement 53 and the available resource information, and creating a candidate computing device list 90 for application placement, a topology information holding step for holding topology information indicating the communication connection relationship of the plurality of computing devices 3, 9, and
- the method includes a communication performance information holding step for holding communication performance information of each link of the network, a communication path selection step for selecting a communication path of the application when the application is placed on each computing device in the application placement destination computing device candidate list 90 based on the topology information to create a communication path candidate list 110, a performance verification step for verifying whether or not the communication requirement
- the execution performance and communication performance of the app can be ensured by taking into consideration the computing resources of each computing device 3, 9 and the communication resources between the computing devices, making it possible to operate the app stably.
- the communication requirements 64 and communication performance information in this embodiment include one or more of the communication bandwidth, communication delay, communication jitter, and packet loss rate of the application. This makes it possible to define the communication requirements 64 and communication performance information of the application.
- the performance verification unit 26 in this embodiment verifies whether or not the communication requirements 64 are satisfied for each communication path in the communication path candidate list 110 by performing a numerical calculation based on the communication performance information and the communication requirements 64. This makes it possible to easily verify whether or not the communication requirements 64 are satisfied for each communication path in the communication path candidate list 110.
- the performance verification unit 26 in this embodiment verifies whether or not the communication requirements 64 are satisfied for each communication path in the communication path candidate list 110 by performing a simulation based on the communication performance information and the communication requirements 64. It becomes possible to verify with high accuracy whether or not the communication requirements 64 are satisfied for each communication path in the communication path candidate list 110.
- the metadata 43 that is input to the network together with the app when the app is deployed includes execution requirements 53 including one or more of computational resources, storage resources, and specifications, communication specifications 58 including one or more of communication direction, communication partner, communication cycle, communication data size, and communication identification information, and communication requirements 64 including one or more of communication bandwidth, communication delay, communication jitter, and packet loss rate.
- execution requirements 53 including one or more of computational resources, storage resources, and specifications
- communication specifications 58 including one or more of communication direction, communication partner, communication cycle, communication data size, and communication identification information
- communication requirements 64 including one or more of communication bandwidth, communication delay, communication jitter, and packet loss rate.
- the network in this embodiment is an in-vehicle network mounted on a vehicle
- the multiple computing devices 3, 9 are multiple in-vehicle electronic control devices 3, 9 mounted on the vehicle. This makes it possible to stably operate a newly deployed app on the in-vehicle network.
- the in-vehicle device in this embodiment also includes the network system. This allows the newly installed app to run stably on the in-vehicle device.
- the communication requirements 64 in this embodiment include items related to sensor data output from the sensors 4 mounted on the vehicle, control data for controlling the vehicle, and intermediate data obtained during the calculation to derive the control data from the sensor data. This makes it possible to define the communication requirements 64 according to the required performance of the vehicle-mounted device.
- communication performance is estimated by numerical calculation. This method requires a small amount of calculation and is simple, but the accuracy of the estimation is low. Therefore, in the second embodiment, an alternative method is shown, in which communication performance is estimated by network simulation.
- Figure 23 is a configuration diagram of the performance verification unit 26 in the second embodiment.
- the performance verification unit 26 in this embodiment can be configured in two main ways.
- Figure 23(a) is a configuration diagram when a simulation is performed inside the vehicle.
- the performance verification unit 26 has a simulation unit 28 inside, which is used to perform performance verification by simulation.
- Figure 23(b) is a configuration diagram when a simulation is performed outside the vehicle.
- outside the vehicle means a computing resource other than the vehicle itself, such as the cloud, Multi-access Edge Computing (MEC), a roadside unit, or another vehicle.
- the performance verification unit 26 communicates with the simulation unit 28 installed outside the vehicle by wireless communication, etc., sends the necessary settings to the simulation unit 28, instructs the simulation unit 28 to perform a simulation, and receives the results from the simulation unit 28.
- MEC Multi-access Edge Computing
- FIG. 24 is a flow chart showing the operation of step S305 in FIG. 16, among the operations of the performance verification unit 26 in the second embodiment.
- step S500 a simulation setting is created.
- step S501 the simulation unit 28 is operated to execute a simulation.
- step S502 a performance evaluation result is obtained for each section (link) of the route candidate from the simulation result.
- the performance evaluation result includes the communication bandwidth, delay, jitter, packet discard rate, etc.
- the invention of this embodiment enables more accurate performance evaluation, making it possible to increase the number of stored apps and improve the stability of app operation.
- the network system performance verification unit 26 in this embodiment verifies whether or not the communication requirements 64 are satisfied by each communication path in the communication path candidate list 110 by performing a simulation based on the communication performance information and the communication requirements 64 .
- the topology of the in-vehicle network is assumed to be fixed. However, the topology of the in-vehicle network can change due to the addition of a new device to the CAN or a communication interruption caused by a hardware abnormality. Therefore, in the third embodiment, an in-vehicle network system that can follow such topology changes is shown.
- FIG. 25 is a functional block diagram of an in-vehicle network system in the third embodiment. Compared to FIG. 3, a topology change monitoring unit 29 has been added.
- the topology change monitoring unit 29 monitors the status of the in-vehicle network by detecting "bus failure” or "error state” in the case of CAN, and by using methods such as LLDP (Link Level Discovery Protocol) in the case of Ethernet.
- the status of the in-vehicle network means whether or not the links on the in-vehicle network are in a state in which communication is possible normally. If the state is normal, no action is taken. If an abnormality is detected, the information on the link is deleted from the topology information table 70 of the topology information storage unit 22 or marked as being in an abnormal state, and the link is not used. After that, the apps are relocated, including the apps that have already been deployed. In other words, the communication path selection unit 25, performance verification unit 26, and setting application unit 27 are operated to set up app deployment and communication paths that avoid the link that has become abnormal.
- the network system in this embodiment further includes a topology change monitor 29 that detects changes in the network topology and notifies the topology information holder 22 of the changes.
- the fourth embodiment therefore shows a device that places apps while taking into account the priority between apps.
- FIG. 26 shows the application requirement table 50 held by the application requirement holding unit 21 in the fourth embodiment.
- the difference from the first to third embodiments is that a priority column 69 is added to the communication specifications 58.
- priority is set in eight levels from 0 to 7, with 0 being the lowest priority and 7 being the highest priority.
- execution requirements 53 and communication requirements 64 are the same as those in the first and third embodiments, so descriptions of the individual columns are omitted.
- FIG. 27 is a flowchart showing the operation of the application placement selection unit 24 in the fourth embodiment. Processes similar to those in the flowchart of embodiment 1 (FIG. 9) are given the same numbers. The only difference from embodiments 1 to 3 is that the loop process of step S101 is changed to step S600. In step S600, a loop related to applications is performed in descending order of priority in the application requirement table 50 in this embodiment. As a result, the ECU placement and communication path are determined earlier for applications with higher priority.
- the application requirement holding unit 21 in this embodiment holds a priority for each application, and the application placement selection unit 24 creates the application placement destination computing device candidate list 90 in descending order of priority of the applications.
- each communication requirement is treated with equal priority, but depending on the application, the degree to which the requirements must be satisfied may differ between communication requirements. Therefore, the fifth embodiment shows a configuration that allows the specification of communication requirements that must be satisfied for each application.
- FIG. 28 shows the application requirement table 50 held by the application requirement holding unit 21 in the fifth embodiment.
- the difference from the first to fourth embodiments is that priority columns 69a to 69d for each item of the communication requirement have been added.
- priority is set on eight levels from 0 to 7, with 0 being the lowest priority and 7 being the highest priority. Using the priority for each item of the communication requirement, applications can be arranged to satisfy communication requirements that should be particularly satisfied for each application.
- FIG. 29 is a flowchart showing the operation of the performance verification unit 26. Processes similar to those in the flowchart of the first embodiment 1 (FIG. 16) are given the same numbers. The differences from the first embodiment are that step S306 is changed to step S700, and that rather than immediately determining in step S308 that the app placement has failed after step S307 is completed, the lowest priority item is removed from the communication requirements in steps S700 and S701, and then app placement is attempted again.
- step S700 the application communication performance evaluation is used to determine whether the application's communication performance satisfies the communication requirements with a priority level greater than 0. If it does (Yes), the application placement is deemed successful and steps S310 and onward are executed. If it does not (No), the loop on the route candidate list is terminated in step S307.
- step S701 the priority of each communication requirement of the application is checked from application requirement table 50. If the priority of two or more communication requirements is greater than 0, it is determined that the communication requirement with the lowest priority greater than 0 can be excluded. If it is determined that it can be excluded in step S701 (Yes), in step S702 the priority of the communication requirement determined to be excludable in step S700 is overwritten with 0. If it is determined that it cannot be excluded in step S701 (No), the process proceeds to step S308 and the application deployment is deemed to have failed.
- the application requirement storage unit 21 stores a priority for each item of the application's communication requirements 64, and if there are one or more items of the communication requirements 64 that are not satisfied, the performance verification unit 26 excludes the item with the lowest priority from the communication requirements 64 and re-verifies whether the communication requirements 64 are satisfied.
- the present invention is not limited to the above-mentioned embodiments and includes various modified examples.
- the above-mentioned embodiments have been described in detail to explain the present invention in an easy-to-understand manner, and the present invention is not necessarily limited to those having all of the configurations described.
- jitter column 68 ... discard rate column, 69, 69a to 69d ... priority column, 70 ... topology information table, 71 ... link column, 72 ... type column, 73 ... connection information column, 80 ... communication performance information table, 81 ... link column, 82 ... communication direction, 83 ... total bandwidth column, 84 ... bandwidth column, 85 ...
- delay time column 86 ...jitter column, 87...discard rate column, 88...buffer usage column, 90...list of candidate ECUs for application placement (list of candidate computing devices for application placement), 91...application column, 92...destination ECU candidates, 100...search list, 101...phase, 102...candidate communication paths, 103...state, 110...candidate communication path list, 111...application column, 112...candidate communication paths, 120...communication path list, 121...application column, 122...communication path, 130...communication path setting table, 131...ECU column, 132...application identification information, 133...destination ECU.
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Abstract
Description
続くステップS205ではアプリ配置先ECU候補リスト90のアプリ列91にあるアプリ毎に以下のループ処理を行う。まずステップS206にてアプリ要件保持部21からアプリの通信データ(パケット)ごとに、通信相手情報を取得する。ここで通信相手情報とは、受信データにおけるデータ送信元、ならびに送信データにおけるデータ宛先を総称していう。ステップS207では前記通信相手情報を調べ、通信相手に関する情報が含まれない場合(No)は通信が行われないものと判断して次のアプリに関する処理に移る。ステップS207で通信相手に関する情報が含まれる場合(Yes)、ステップS208以降に進む。
ステップS208ではアプリ配置先ECU候補リスト90の配置先ECU候補92に対するループを開始する。ステップS209では別途定義する処理によりデータの送信元から受信先までの経路候補を求める。すべての配置先ECU候補に関してS209の処理が完了した場合、S210にて配置先ECU候補に関するループを終了する。
本実施例では、アプリの実行要件53を満たすように、ネットワーク上に存在する複数の演算装置3,9のいずれかへ前記アプリを配置するネットワークシステムにおいて、前記アプリの実行要件53および通信要件64を保持するアプリ要件保持部21と、複数の演算装置3,9の空きリソース情報を保持する空きリソース情報保持部20と、実行要件53と空きリソース情報とに基づいて、複数の演算装置3,9の中から前記アプリを実行可能な演算装置を選択し、アプリ配置先演算装置候補リスト90を作成するアプリ配置選択部24と、複数の演算装置3,9の通信接続関係を示すトポロジ情報を保持するトポロジ情報保持部22と、前記ネットワークの各リンクの通信性能情報を保持する通信性能情報保持部23と、前記トポロジ情報に基づいて、アプリ配置先演算装置候補リスト90内の各演算装置に前記アプリを配置した場合の前記アプリの通信経路を選択して通信経路候補リスト110を作成する通信経路選択部25と、通信性能情報と通信要件64とに基づいて、通信経路候補リスト110内の各通信経路にて通信要件64が満たされるか否かを検証する性能検証部26と、アプリ配置先演算装置候補リスト90内の演算装置のうち、性能検証部26によって通信要件64が満たされることが検証された通信経路に対応する演算装置に前記アプリを配置する設定適用部27とを備える。
本実施例におけるネットワークシステムの性能検証部26は、通信経路候補リスト110内の各通信経路にて通信要件64が満たされるか否かを、通信性能情報と通信要件64とに基づくシミュレーションにより検証する。
本実施例におけるネットワークシステムは、ネットワークのトポロジ変化を検出してトポロジ情報保持部22に通知するトポロジ変更監視部29をさらに備える。
本実施例におけるアプリ要件保持部21は、アプリごとに優先度を保持し、アプリ配置選択部24は、優先度の高いアプリから順にアプリ配置先演算装置候補リスト90を作成する。
本実施例におけるアプリ要件保持部21は、アプリの通信要件64の項目ごとに優先度を保持し、性能検証部26は、通信要件64のうち満足されない項目が1つ以上あった場合に、優先度が最も低い項目を通信要件64から除外し、通信要件64が満たされるか否かを再度検証する。
Claims (15)
- アプリの実行要件を満たすように、ネットワーク上に存在する複数の演算装置のいずれかへ前記アプリを配置するネットワークシステムにおいて、
前記アプリの実行要件および通信要件を保持するアプリ要件保持部と、
前記複数の演算装置の空きリソース情報を保持する空きリソース情報保持部と、
前記実行要件と前記空きリソース情報とに基づいて、前記複数の演算装置の中から前記アプリを実行可能な演算装置を選択し、アプリ配置先演算装置候補リストを作成するアプリ配置選択部と、
前記複数の演算装置の通信接続関係を示すトポロジ情報を保持するトポロジ情報保持部と、
前記ネットワークの各リンクの通信性能情報を保持する通信性能情報保持部と、
前記トポロジ情報に基づいて、前記アプリ配置先演算装置候補リスト内の各演算装置に前記アプリを配置した場合の前記アプリの通信経路を選択して通信経路候補リストを作成する通信経路選択部と、
前記通信性能情報と前記通信要件とに基づいて、前記通信経路候補リスト内の各通信経路にて前記通信要件が満たされるか否かを検証する性能検証部と、
前記アプリ配置先演算装置候補リスト内の演算装置のうち、前記性能検証部によって前記通信要件が満たされることが検証された通信経路に対応する演算装置に前記アプリを配置する設定適用部とを備える
ことを特徴とするネットワークシステム。 - 請求項1に記載のネットワークシステムにおいて、
前記通信要件および前記通信性能情報は、前記アプリの通信帯域、通信遅延、通信ジッタ、およびパケット廃棄率のいずれか1つ以上を含む
ことを特徴とするネットワークシステム。 - 請求項1に記載のネットワークシステムにおいて、
前記性能検証部は、前記通信経路候補リスト内の各通信経路にて前記通信要件が満たされるか否かを、前記通信性能情報と前記通信要件とに基づく数値計算により検証する
ことを特徴とするネットワークシステム。 - 請求項1に記載のネットワークシステムにおいて、
前記性能検証部は、前記通信経路候補リスト内の各通信経路にて前記通信要件が満たされるか否かを、前記通信性能情報と前記通信要件とに基づくシミュレーションにより検証する
ことを特徴とするネットワークシステム。 - 請求項1に記載のネットワークシステムにおいて、
前記ネットワークのトポロジ変化を検出して前記トポロジ情報保持部に通知するトポロジ変更監視部をさらに備える
ことを特徴とするネットワークシステム。 - 請求項1に記載のネットワークシステムにおいて、
前記アプリ要件保持部は、アプリごとに優先度を保持し、
前記アプリ配置選択部は、優先度の高いアプリから順に前記アプリ配置先演算装置候補リストを作成する
ことを特徴とするネットワークシステム。 - 請求項1に記載のネットワークシステムにおいて、
前記アプリ要件保持部は、前記通信要件の項目ごとの優先度を保持し、
前記性能検証部は、前記通信要件のうち満足されない項目が1つ以上あった場合に、優先度が最も低い項目を前記通信要件から除外し、前記通信要件が満たされるか否かを再度検証する
ことを特徴とするネットワークシステム。 - 請求項1に記載のネットワークシステムにおいて、
前記アプリを配置する際に前記アプリとともに前記ネットワークに入力されるメタデータは、
計算リソース、記憶リソース、およびスペックのいずれか1以上を含む実行要件と、
通信方向、通信相手、通信周期、通信データサイズ、および通信識別情報のいずれか1以上を含む通信仕様と、
通信帯域、通信遅延、通信ジッタ、パケット廃棄率のいずれか1以上を含む通信要件とを含む
ことを特徴とするネットワークシステム。 - 請求項1に記載のネットワークシステムにおいて、
前記ネットワークは、車両に搭載された車載ネットワークであり、
前記複数の演算装置は、前記車両に搭載された複数の車載電子制御装置である
ことを特徴とするネットワークシステム。 - 請求項9に記載のネットワークシステムを備える
ことを特徴とする車載装置。 - 請求項9に記載のネットワークシステムにおいて、
前記通信要件は、前記車両に搭載されたセンサから出力されるセンサデータ、前記車両を制御するための制御データ、および前記センサデータから前記制御データを求める演算の途中で得られる中間データに関する項目を含む
ことを特徴とするネットワークシステム。 - アプリの実行要件を満たすように、ネットワーク上に存在する複数の演算装置のいずれかへ前記アプリを配置するネットワーク管理方法において、
前記アプリの実行要件および通信要件を保持するアプリ要件保持ステップと、
前記複数の演算装置の空きリソース情報を保持する空きリソース情報保持ステップと、
前記実行要件と前記空きリソース情報とに基づいて、前記複数の演算装置の中から前記アプリを実行可能な演算装置を選択し、アプリ配置先演算装置候補リストを作成するアプリ配置選択ステップと、
前記複数の演算装置の通信接続関係を示すトポロジ情報を保持するトポロジ情報保持ステップと、
前記ネットワークの各リンクの通信性能情報を保持する通信性能情報保持ステップと、
前記トポロジ情報に基づいて、前記アプリ配置先演算装置候補リスト内の各演算装置に前記アプリを配置した場合の前記アプリの通信経路を選択して通信経路候補リストを作成する通信経路選択ステップと、
前記通信性能情報と前記通信要件とに基づいて、前記通信経路候補リスト内の各通信経路にて前記通信要件が満たされるか否かを検証する性能検証ステップと、
前記アプリ配置先演算装置候補リスト内の演算装置のうち、前記性能検証ステップによって前記通信要件が満たされることが検証された通信経路に対応する演算装置に前記アプリを配置する設定適用ステップとを備える
ことを特徴とするネットワーク管理方法。 - 請求項12に記載のネットワーク管理方法において、
前記ネットワークは、車両に搭載された車載ネットワークであり、
前記複数の演算装置は、前記車両に搭載された複数の車載電子制御装置である
ことを特徴とするネットワーク管理方法。 - 請求項13に記載のネットワーク管理方法において、
前記性能検証ステップでは、前記通信経路候補リスト内の各通信経路にて前記通信要件が満たされるか否かを、前記車両内部の計算機を用いた、前記通信性能情報と前記通信要件とに基づくシミュレーションにより検証する
ことを特徴とするネットワーク管理方法。 - 請求項13に記載のネットワーク管理方法において、
前記性能検証ステップでは、前記通信経路候補リスト内の各通信経路にて前記通信要件が満たされるか否かを、前記車両外部の計算機を用いた、前記通信性能情報と前記通信要件とに基づくシミュレーションにより検証する
ことを特徴とするネットワーク管理方法。
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| JP2022187538A JP7828268B2 (ja) | 2022-11-24 | 2022-11-24 | ネットワークシステム、およびネットワーク管理方法 |
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| CN (1) | CN119654848A (ja) |
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| JP2026046804A (ja) * | 2024-09-03 | 2026-03-13 | 株式会社オートネットワーク技術研究所 | 車載ネットワーク管理システム、車載ネットワーク管理装置および車載ネットワーク管理プログラム |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017143365A (ja) * | 2016-02-09 | 2017-08-17 | 日本電信電話株式会社 | アプリケーション配備システム及び方法 |
| JP2020086522A (ja) * | 2018-11-15 | 2020-06-04 | 株式会社デンソー | 車載システム |
| JP2020137073A (ja) * | 2019-02-25 | 2020-08-31 | 日本電信電話株式会社 | アプリケーション配置装置及びアプリケーション配置プログラム |
| JP2020149480A (ja) * | 2019-03-14 | 2020-09-17 | 富士通株式会社 | ソフトウェア配信プログラム、ソフトウェア配信方法、および情報処理装置 |
| JP2021197570A (ja) * | 2020-06-09 | 2021-12-27 | 株式会社日立製作所 | コンピューティングサービス管理装置、方法、およびプログラム |
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- 2023-08-07 CN CN202380060698.3A patent/CN119654848A/zh active Pending
- 2023-08-07 WO PCT/JP2023/028821 patent/WO2024111175A1/ja not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017143365A (ja) * | 2016-02-09 | 2017-08-17 | 日本電信電話株式会社 | アプリケーション配備システム及び方法 |
| JP2020086522A (ja) * | 2018-11-15 | 2020-06-04 | 株式会社デンソー | 車載システム |
| JP2020137073A (ja) * | 2019-02-25 | 2020-08-31 | 日本電信電話株式会社 | アプリケーション配置装置及びアプリケーション配置プログラム |
| JP2020149480A (ja) * | 2019-03-14 | 2020-09-17 | 富士通株式会社 | ソフトウェア配信プログラム、ソフトウェア配信方法、および情報処理装置 |
| JP2021197570A (ja) * | 2020-06-09 | 2021-12-27 | 株式会社日立製作所 | コンピューティングサービス管理装置、方法、およびプログラム |
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| CN119654848A (zh) | 2025-03-18 |
| JP2024076132A (ja) | 2024-06-05 |
| JP7828268B2 (ja) | 2026-03-11 |
| DE112023002997T5 (de) | 2025-04-30 |
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