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公开(公告)号：US11094187B2
公开(公告)日：2021-08-17
申请号：US16632212
申请日：2018-07-09
IPC分类号： G08B25/00 , G05B19/418 , H04L12/825 , H04L29/08
摘要： Sensors of a control system transmit detected cyclical actual states of a technical industrial process to a common central unit via a first protected connection of a first open communication network once within a specified time window. The central unit transmits cyclical control signals commensurate with the actual states to multiple actuators via a second protected connection of a second open communication network once within the specified time window. Each sensor supplies the actual state detected by the sensor to the first open communication network within a respective transmitter-side sub-region within the time window. The central unit receives the transmitted actual states within a respective corresponding receiver-side sub-region within the time window. The transmitter-side sub-regions of the sensors are specified such that the receiver-side sub-regions are disjointed from one another.
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公开(公告)号：US20200213022A1
公开(公告)日：2020-07-02
申请号：US16492819
申请日：2017-03-13
IPC分类号： H04J3/06
摘要： The disclosure relates to a method and device for time-controlled data transmission in a TSN. A new traffic shaping method is described for time-sensitive data streams. The objective is to offer the same real-time performance and configuration complexity as in the prior art but without the need for time synchronization throughout the entire network. The traffic shaper provides that a data frame that is received by a bridge in a first-time interval is passed by this bridge to the next hop/bridge in the next time interval. Each bridge knows the start time of the time interval that belongs to a particular data stream. Each data frame must contain a so-called “delay value,” thus a delay value which is measured by each bridge using a local clock that measures the delay time spent by the data frame in the queue at the outgoing port.
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公开(公告)号：US11245732B2
公开(公告)日：2022-02-08
申请号：US16492601
申请日：2017-03-10
IPC分类号： H04L29/06 , H04L12/727
摘要： The invention relates to methods and to a device for the modular orientation of an AVB stream. The introduction of a new attribute (L_BRIDGE) into the reservation protocol that has been further developed for TSN allows to better use the existing mechanisms in the Ethernet Standard. To this end, each receiver and each transmitter has to announce himself in the network (already existing for the transmitters).
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公开(公告)号：US11088962B2
公开(公告)日：2021-08-10
申请号：US16628964
申请日：2017-07-06
IPC分类号： H04L12/911 , H04L12/875 , H04L12/927 , H04L29/08
摘要： The invention relates to a method and to a device that describe a real-time network plan for industrial control and monitoring applications, wherein standard Ethernet switching elements are used for the communication network, in particular on the basis of the new mechanisms according to the IEEE 802.1 TSN Task Group. The sequence plan combines clocked data transfer with the stream reservation concept and thus provides determinism with guaranteed maximum latency and access controls at runtime.
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公开(公告)号：US11018791B2
公开(公告)日：2021-05-25
申请号：US16492819
申请日：2017-03-13
IPC分类号： H04J3/06
摘要： The disclosure relates to a method and device for time-controlled data transmission in a TSN. A new traffic shaping method is described for time-sensitive data streams. The objective is to offer the same real-time performance and configuration complexity as in the prior art but without the need for time synchronization throughout the entire network. The traffic shaper provides that a data frame that is received by a bridge in a first-time interval is passed by this bridge to the next hop/bridge in the next time interval. Each bridge knows the start time of the time interval that belongs to a particular data stream. Each data frame must contain a so-called “delay value,” thus a delay value which is measured by each bridge using a local clock that measures the delay time spent by the data frame in the queue at the outgoing port.
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公开(公告)号：US20210152482A1
公开(公告)日：2021-05-20
申请号：US17045139
申请日：2019-04-03
IPC分类号： H04L12/859 , H04L12/841 , H04L29/08
摘要： The invention describes a transmission device having a (TCP/IP) protocol stack (S, S′), which is designed for the transmission of data (D) in a time-sensitive network (TSN). The transmission device comprises at least one TSN-compliant virtual Ethernet interface (2.2, 2.2′) and an associated TSN control unit (3.1, 3.1′). The at least one TSN-compliant virtual Ethernet interface (2.2, 2.2) is designed to send and/or receive a TSN-compliant data stream (2.1, 2.1) in a physical layer (1) of the TCP/IP protocol stack (S, S). The TSN-compliant data stream (2.1, 2.1′) can be configured and/or parameterised by means of the associated TSN control unit (3.1, 3.1′).
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公开(公告)号：US20200228463A1
公开(公告)日：2020-07-16
申请号：US16648386
申请日：2018-09-13
发明人： Marcel Kiessling
IPC分类号： H04L12/931 , H04L12/853
摘要： A method of scheduling traffic in a network node is provided. A cyclic traffic schedule for a first traffic class, such as a first real time traffic class, includes a reception phase and a transmission phase. The method includes setting the transmission phase (T00) of the network node to coincide with the reception phase of at least two neighboring network nodes.
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公开(公告)号：US10298380B2
公开(公告)日：2019-05-21
申请号：US14966865
申请日：2015-12-11
发明人： Marcel Kiessling
IPC分类号： H04J3/06 , H04L5/22 , H04L29/06 , H04L12/815 , H04W28/02 , H04N21/647 , H04L29/08 , H04N21/8547 , H04N21/236 , H04N21/43
摘要： Method for transmitting data in a communication network of an industrial automation system and coupling communication device wherein in order to transmit data in a communication network of the industrial automation system, first data frames including control data for the automation system are transmitted by coupling communication devices of the communication network only within periodic first intervals of time, where second data frames, which are assigned to data streams comprising sequences of data frames, and/or third data frames, for the transmission of which no quality of service or a quality of service below a predefined threshold value is stipulated, are transmitted within periodic second intervals of time, the first intervals of time are subdivided into first and second sub-intervals, and where first data frames which are to be forwarded are inserted into a first and a second queue in alternating sub-intervals and are alternately removed from the queues for forwarding.
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