EP4211872A1 - Verfahren zum betreiben eines netzwerks - Google Patents
Verfahren zum betreiben eines netzwerksInfo
- Publication number
- EP4211872A1 EP4211872A1 EP21770211.7A EP21770211A EP4211872A1 EP 4211872 A1 EP4211872 A1 EP 4211872A1 EP 21770211 A EP21770211 A EP 21770211A EP 4211872 A1 EP4211872 A1 EP 4211872A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- network
- tsn
- data streams
- partial data
- data
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000001419 dependent effect Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 description 3
- 230000010354 integration Effects 0.000 description 2
- 230000001427 coherent effect Effects 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000012913 prioritisation Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/25—Routing or path finding in a switch fabric
- H04L49/253—Routing or path finding in a switch fabric using establishment or release of connections between ports
- H04L49/254—Centralised controller, i.e. arbitration or scheduling
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4641—Virtual LANs, VLANs, e.g. virtual private networks [VPN]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4641—Virtual LANs, VLANs, e.g. virtual private networks [VPN]
- H04L12/4645—Details on frame tagging
-
- 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
- H04L47/36—Flow control; Congestion control by determining packet size, e.g. maximum transfer unit [MTU]
- H04L47/365—Dynamic adaptation of the packet size
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/4026—Bus for use in automation systems
Definitions
- the present invention relates to a method for operating a network, in particular an automation network.
- the method should be suitable for integrating components of an automation network into an existing multifunctional network, for example into an Ethernet network, in particular into a fieldbus network which is designed as an Ethernet bus.
- TSN was developed to enable time-sensitive data transmission in a network. TSN functions also make transmission times predictable.
- the TSN network is standardized under IEEE 802.1.
- a SERGOS III automation network for example, is based on summation frame telegrams in the form of Ethernet broadcasts without a VLAN tag. It therefore requires a specific network topology, such as a ring or line topology, with a stable sequence of participants.
- a correspondingly known communication in an automation network is known, for example, from WO 2018/215209 A1.
- the devices are mainly connected in a line topology and made possible by appropriate communication using data telegrams.
- a method for transmitting telegrams in an automation network is known from DE 10 2018 129 809 A1 in order to also provide data nodes in an automation network, for example in order to be able to make the sequence of participants more variable.
- the topology used to connect the devices to the automation network is also fixed here.
- a method for industrial communication via TSN is also known from WO 2017/093014 A1.
- basic communications and protocols in a TSN-enabled network are disclosed.
- a method for operating a network with at least one switch serves as a node in the network and can send or receive data in all directions of the node.
- the switch also contains programmable logic that can store and use the relationships to the other participants in the network.
- the network also includes at least two end devices and a controller.
- the controller is also referred to as the master in an automation network.
- the controller can send data to a specific end device via an application protocol in order to control it.
- the application protocol is implemented via the application layer of the OSI network model. This means that communication is implemented via the application protocol in OSI layer 7.
- the data sent in this way is divided into data packets in accordance with the specification for Internet networks and sent via the data link layer of the network. This means that the individual data packets are transmitted within the security layer, i.e. layer 2 of the OSI model. The data packets are thus transmitted in layer 2 as a frame.
- the data is sent as a TSN data stream.
- the TSN data stream is now divided into at least two partial data streams, which can also be TSN-capable.
- the aim of this subdivision is that there are participants in the network between the individual partial data streams or within the partial data streams which are not TSN-capable.
- the partial data streams should make it possible to configure TSN functions via subscribers who are not TSN-capable. This is achieved by, for example, generating partial data streams up to the non-TSN-capable subscriber and then again after the non-TSN-enabled participant to the destination.
- the partial data streams ensure that, when combined, the partial data streams result in a coherent TSN data stream. It is now possible to enable TSN data streams in a network with TSN-enabled and non-TSN-enabled users. Any automation network can thus be integrated into an existing, conventional network.
- the partial data streams can be dependent on one another. This means that, for example, in the case of two partial data streams, the second partial data stream is only created when the first partial data stream has been dealt with.
- the partial data streams can also be dependent on previous participants. This means that a partial data stream could only be created when a participant upstream in the data stream is ready.
- the partial data streams can be designed as TSN partial data streams or as conventional data streams.
- the data stream assembled from the partial data streams is then implemented as a TSN data stream.
- the switches should be placed at the nodes of the networks, preferably between the controller and end devices. As a result, different topologies can be interconnected in a network from these nodes.
- the end devices of the automation networks can be connected in series, depending on the topology in a ring or in a line. This also corresponds to the normal function of an automation network.
- several automation networks can thus be connected together in one network through the switches, with participants who are not part of the automation network belong, can participate in the same network.
- the method according to the invention includes the terminal devices being able to respond in accordance with the automation network and the application protocol, so that the response can be sent from the terminal devices to the appropriate controller.
- TSN data streams it is possible to predict times when data is sent and/or received, as well as to prioritize data streams in the network. This means that communication in the network can be planned.
- controllers and terminals are participants in an automation bus. This bus is then operated as an automation network with Ethernet specification.
- the number of controllers and end devices in the network is not limited.
- routers also contain the functions of a switch.
- Other participants such as PCs, servers and/or hubs, can also be present.
- a network management system which is preferably implemented as software, in order to be able to carry out the desired flow of the data from a network subscriber to the terminal device.
- FIG. 1 A network according to the invention with two switches
- Figure 1 shows a network according to the invention with three terminals 10, 11, 12, two switches 20, 31 and a controller 30.
- the controller 30 and the terminals 10, 11, 12 are taken from an automation network. However, the terminals 10, 11 are included in a different network branch than the terminal 12. The terminals 10, 11 are arranged in a line topology and the terminal 12 in a ring topology. Further network subscribers can be arranged on the branches of the network, but these are not shown in this FIG.
- the branches or different topologies are connected by two switches 20, 21. Accordingly, the switches 20, 21 represent nodes in the network which connect the different branches or topologies.
- the controller 30 now wants to send data for controlling a terminal device to terminal device 11, for example, the corresponding data is sent to the network via the application protocol.
- the application protocol is executed in the application layer of the OSI network model.
- this data is now divided into data packets and, according to the invention, is sent as frames via the security layer (OSI model layer 2).
- OSI model layer 2 OSI model layer 2.
- TSN network functions of a TSN network are used and the communication between the controller 30 and the terminal 11 is carried out as a TSN data stream.
- the data stream is now divided into partial data streams 2, 3.
- These partial data streams 2, 3 can also be implemented as TSN partial data streams.
- the data stream is realized via two switches 20 , 21 and initially executed in partial data stream 3 .
- This partial data stream 3 leads from the controller 30 via the switch 20 to the switch 21.
- the partial data stream 3 is then routed to the terminal device 12.
- a TSN data stream is thus divided into two partial data streams 2, 3.
- the response from terminal 11 to controller 30 is also implemented as a TSN data stream.
- the data stream could be divided into the partial data streams 1 , 2 . Partial data stream first leads via terminal 10 back to terminal 11. Partial data stream 2 then begins, which via switch 20 to the controller 30 leads.
- the path taken by the TSN data stream and thus the partial data streams results from the time values of the network participants.
- the TSN functions can specify a path in the network through prioritization or the ability to plan, which is, for example, the fastest to the desired destination.
- the switches 20, 21 could not be TSN-capable, which is why a division into the partial data streams takes place.
- the start and destination of each partial data stream is TSN-capable.
- partial data stream 2 can only be created when partial data stream 3 has at least partially arrived at terminal 12 .
- the partial data stream 2 can also be dependent on the terminal 12 and can only be created when the terminal 12 is ready for this.
- the arrangement and topologies of the strands on the switches 20, 21 are exemplary and can be implemented as desired. Likewise, the number of terminals 10, 11, 12, switches 20, 21 and controller 30 is not specified.
- a router or server could be used instead of at least one switch.
- Other participants such as PCs or hubs could also be used.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Small-Scale Networks (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102020123275 | 2020-09-07 | ||
PCT/EP2021/074224 WO2022049174A1 (de) | 2020-09-07 | 2021-09-02 | Verfahren zum betreiben eines netzwerks |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4211872A1 true EP4211872A1 (de) | 2023-07-19 |
Family
ID=77774910
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21770211.7A Pending EP4211872A1 (de) | 2020-09-07 | 2021-09-02 | Verfahren zum betreiben eines netzwerks |
EP21770210.9A Pending EP4211871A1 (de) | 2020-09-07 | 2021-09-02 | Verfahren zum betreiben eines netzwerks |
EP21770212.5A Pending EP4211873A1 (de) | 2020-09-07 | 2021-09-02 | Verfahren zum betreiben eines netzwerks |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21770210.9A Pending EP4211871A1 (de) | 2020-09-07 | 2021-09-02 | Verfahren zum betreiben eines netzwerks |
EP21770212.5A Pending EP4211873A1 (de) | 2020-09-07 | 2021-09-02 | Verfahren zum betreiben eines netzwerks |
Country Status (5)
Country | Link |
---|---|
US (3) | US20230336380A1 (de) |
EP (3) | EP4211872A1 (de) |
CN (3) | CN116018785A (de) |
DE (3) | DE102021122685A1 (de) |
WO (3) | WO2022049174A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116708536B (zh) * | 2023-08-09 | 2023-10-24 | 江苏中威科技软件系统有限公司 | 一种基于雾计算的跨平台终端互联的通讯协议实现的方法 |
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DE102006036770A1 (de) * | 2006-08-07 | 2008-02-14 | Siemens Ag | Verfahren zur Inbetriebnahme von mindestens einem Feldgerät |
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US8923285B2 (en) * | 2008-04-30 | 2014-12-30 | Qualcomm Incorporated | Apparatus and methods for transmitting data over a wireless mesh network |
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-
2021
- 2021-09-02 EP EP21770211.7A patent/EP4211872A1/de active Pending
- 2021-09-02 EP EP21770210.9A patent/EP4211871A1/de active Pending
- 2021-09-02 CN CN202180054750.5A patent/CN116018785A/zh active Pending
- 2021-09-02 US US18/019,887 patent/US20230336380A1/en active Pending
- 2021-09-02 DE DE102021122685.6A patent/DE102021122685A1/de active Pending
- 2021-09-02 DE DE102021122684.8A patent/DE102021122684A1/de active Pending
- 2021-09-02 CN CN202180054805.2A patent/CN116057897A/zh active Pending
- 2021-09-02 EP EP21770212.5A patent/EP4211873A1/de active Pending
- 2021-09-02 WO PCT/EP2021/074224 patent/WO2022049174A1/de unknown
- 2021-09-02 US US18/019,915 patent/US20230362033A1/en active Pending
- 2021-09-02 DE DE102021122686.4A patent/DE102021122686A1/de active Pending
- 2021-09-02 US US18/019,927 patent/US20230291695A1/en active Pending
- 2021-09-02 CN CN202180054973.1A patent/CN116018786A/zh active Pending
- 2021-09-02 WO PCT/EP2021/074223 patent/WO2022049173A1/de unknown
- 2021-09-02 WO PCT/EP2021/074225 patent/WO2022049175A1/de unknown
Also Published As
Publication number | Publication date |
---|---|
DE102021122686A1 (de) | 2022-03-10 |
CN116057897A (zh) | 2023-05-02 |
CN116018786A (zh) | 2023-04-25 |
US20230336380A1 (en) | 2023-10-19 |
EP4211873A1 (de) | 2023-07-19 |
US20230291695A1 (en) | 2023-09-14 |
WO2022049173A1 (de) | 2022-03-10 |
DE102021122685A1 (de) | 2022-03-10 |
EP4211871A1 (de) | 2023-07-19 |
DE102021122684A1 (de) | 2022-03-10 |
WO2022049175A1 (de) | 2022-03-10 |
WO2022049174A1 (de) | 2022-03-10 |
CN116018785A (zh) | 2023-04-25 |
US20230362033A1 (en) | 2023-11-09 |
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Inventor name: HUMMEN, RENE Inventor name: BECHTEL, LUKAS Inventor name: KAUFMANN, ARNE |
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