公开(公告)号：US20150006760A1

公开(公告)日：2015-01-01

申请号：US14485835

申请日：2014-09-15

申请人： Wilfried Steiner ,  Gunther Bauer ,  Matthias Wachter ,  Brendan Hall ,  Michael Paulitsch

发明人： Wilfried Steiner ,  Gunther Bauer ,  Matthias Wachter ,  Brendan Hall ,  Michael Paulitsch

IPC分类号： H04L29/08

CPC分类号： H04L67/1095 ,  H04J3/0641 ,  H04J3/0664 ,  H04J3/067 ,  H04J3/0673 ,  H04J3/0679

摘要： The invention relates to a method for synchronizing local clocks in a distributed computer network, where said computer network consists of a number of components that are connected to each other via bi-directional communication links, characterized in thata) an a priori configured set of components of the network generates synchronization messages and sends these synchronization messages to the network, andb) an a priori configured set of components consumes the generated synchronization messages, andc) one or more message-relaying components in between a component that generates a synchronization message and the component that consumes the synchronization message will add a delay value to the synchronization message reflecting the delay imposed by the message-relaying component,d) a component that is configured to consume a synchronization message will delay a received synchronization message upon reception for a duration that is calculated by an a priory configured value for the maximum transmission delay (“Maximum Transmission Delay”) minus the value of the sum of all delay values added to the received message before further usage of the message in the synchronization process of said component.

摘要翻译： 本发明涉及一种用于在分布式计算机网络中同步本地时钟的方法，其中所述计算机网络由通过双向通信链路相互连接的多个组件组成，其特征在于：a）先验配置的一组 网络的组件生成同步消息并将这些同步消息发送到网络，以及b）先验配置的组件集消耗所生成的同步消息，以及c）生成同步的组件之间的一个或多个消息中继组件 消息和消耗同步消息的组件将向反馈由消息中继组件施加的延迟的同步消息添加延迟值，d）被配置为消耗同步消息的组件将在接收时延迟所接收的同步消息 一个持续时间是由一个小型配置值计算的 最大传输延迟（“最大传输延迟”）减去在所述组件的同步过程中进一步使用消息之前添加到接收到的消息的所有延迟值之和的值。

公开(公告)号：US20110173347A1

公开(公告)日：2011-07-14

申请号：US12995588

申请日：2008-06-02

申请人： Wilfried Steiner ,  Gunther Bauer ,  Matthias Wachter ,  Michael Paulitsch ,  Brendan Hall

发明人： Wilfried Steiner ,  Gunther Bauer ,  Matthias Wachter ,  Michael Paulitsch ,  Brendan Hall

IPC分类号： G06F15/16

CPC分类号： H04J3/0676 ,  H04J3/0652 ,  H04L7/10

摘要： The invention relates to a method for synchronizing local clocks in a distributed computer network, where said computer network consists of a number of end systems and at least two switches. Each end system is connected to at least two switches via bi-directional communication links. A configured subset of end systems and switches executes the method in form of a synchronization state machine. The state machine uses at least three different frame types. The states in the state machine are either said to belong to an unsynchronized set of states or belong to a synchronized set of states. All end systems that are configured as Synchronization Master periodically send coldstart frames in one of the unsynchronized states and react to the reception of a coldstart frame by sending a coldstart acknowledgment frame a configurable first timeout after the reception of the coldstart frame on all replicated communication channels, provided that the end system is in a state in which the synchronization state machine defines a transition for coldstart frames, and where said first timeout is reset when a consecutive coldstart frame is received before the coldstart acknowledge is sent. All end systems that are configured as Synchronization Master react to the reception of a coldstart acknowledgment frame by starting a configurable second timeout, provided that they are not already executing said first timeout, and entering a synchronized state when said second timeout expires.

摘要翻译： 本发明涉及一种用于在分布式计算机网络中同步本地时钟的方法，其中所述计算机网络由许多终端系统和至少两个交换机组成。 每个终端系统经由双向通信链路连接至至少两个交换机。 终端系统和交换机的配置子集以同步状态机的形式执行该方法。 状态机使用至少三种不同的帧类型。 状态机中的状态被称为属于一个不同步的状态集合或者属于同步状态集合。 被配置为同步主机的所有终端系统周期性地以不同步的状态之一发送冷启动帧，并且通过在所有复制的通信信道上接收到冷启动帧之后发送冷启动确认帧来响应接收到冷启动帧。 条件是终端系统处于同步状态机定义冷启动帧的转换的状态，并且当在发送冷启动确认之前接收到连续的冷启动帧时，所述第一超时被重置。 被配置为同步主机的所有终端系统通过启动可配置的第二超时来响应接收到冷启动确认帧，前提是它们尚未执行所述第一超时，并且当所述第二超时到期时进入同步状态。

公开(公告)号：US08868789B2

公开(公告)日：2014-10-21

申请号：US12995590

申请日：2008-06-02

申请人： Wilfried Steiner ,  Gunther Bauer ,  Matthias Wachter ,  Michael Paulitsch ,  Brendan Hall

发明人： Wilfried Steiner ,  Gunther Bauer ,  Matthias Wachter ,  Michael Paulitsch ,  Brendan Hall

IPC分类号： G06F15/16 ,  H04J3/06

CPC分类号： H04L67/1095 ,  H04J3/0641 ,  H04J3/0664 ,  H04J3/067 ,  H04J3/0673 ,  H04J3/0679

摘要： A method for synchronizing local clocks in a distributed computer network includes a number of components that are connected to each other via bi-directional communication links. An a priori configured set of components generates synchronization messages and sends these messages to the network. An a priori configured set of components consumes the generated messages. One or more message-relaying components in between a component that generates a synchronization message and the component that consumes the message adds delay value to the message reflecting the delay imposed by the message-relaying component. A component that is configured to consume a synchronization message delays a received synchronization message upon reception for a duration that is calculated by an a priori configured value for the maximum transmission delay minus the value of the sum of all delay values added to the received message before further usage of the message in the synchronization process.

摘要翻译： 用于在分布式计算机网络中同步本地时钟的方法包括通过双向通信链路相互连接的多个组件。 先验配置的一组组件生成同步消息并将这些消息发送到网络。 先前配置的组件集消耗生成的消息。 在生成同步消息的组件和消耗消息的组件之间的一个或多个消息中继组件向反映由消息中继组件施加的延迟的消息添加延迟值。 被配置为消耗同步消息的组件在接收到延迟接收到的同步消息的延迟持续时间期间，该持续时间由用于最大传输延迟的先验配置值减去加在接收到的消息之前的所有延迟值之和的值 在同步过程中进一步使用消息。

公开(公告)号：US20130142204A1

公开(公告)日：2013-06-06

申请号：US13749777

申请日：2013-01-25

申请人： Hermann Kopetz ,  Wilfried Steiner ,  Gunther Bauer ,  Matthias Wachter ,  Brendan Hall ,  Michael Paulitsch

发明人： Hermann Kopetz ,  Wilfried Steiner ,  Gunther Bauer ,  Matthias Wachter ,  Brendan Hall ,  Michael Paulitsch

IPC分类号： H04L12/44

CPC分类号： H04L12/44 ,  H04J3/0655 ,  H04L12/40026 ,  H04L12/417

摘要： The goal of the present invention is to improve the useful data efficiency and reliability in the use of commercially available ETHERNET controllers, in a distributed real time computer system, by a number of node computers communicating via one or more communication channels by means of TT ETHERNET messages. To achieve this goal, a distinction is made between the node computer send time (KNSZPKT) and the network send time (NWSZPKT) of a message. The KNSZPKT must wait for the NWSZPKT, so that under all circumstances, the start of the message has arrived in the TT star coupler at the NWSZPKT, interpreted by the clock in the TT star coupler. The TT star coupler is modified, so that a message arriving from a node computer is delayed in an intelligent port of the TT star coupler until the NWSZPKT can send it precisely at the NWSZPKT into the TT network.

摘要翻译： 本发明的目的是在分布式实时计算机系统中，通过多个通过一个或多个通信信道通过TT ETHERNET进行通信的节点计算机，在商业上可获得的以太网控制器的使用中提高有用的数据效率和可靠性 消息。 为了实现这一目标，区分消息的节点计算机发送时间（KNSZPKT）和网络发送时间（NWSZPKT）。 KNSZPKT必须等待NWSZPKT，所以在任何情况下，消息的开始已经到达NWSZPKT的TT星形耦合器，由TT星形耦合器的时钟解释。 TT星形耦合器被修改，使得从节点计算机到达的消息在TT星形耦合器的智能端口中被延迟，直到NWSZPKT可以在NWSZPKT将其精确地发送到TT网络中。

公开(公告)号：US20110138080A1

公开(公告)日：2011-06-09

申请号：US12995590

申请日：2008-06-02

申请人： Wilfried Steiner ,  Gunther Bauer ,  Matthias Wachter ,  Michael Paulitsch ,  Brendan Hall

发明人： Wilfried Steiner ,  Gunther Bauer ,  Matthias Wachter ,  Michael Paulitsch ,  Brendan Hall

IPC分类号： G06F15/16

CPC分类号： H04L67/1095 ,  H04J3/0641 ,  H04J3/0664 ,  H04J3/067 ,  H04J3/0673 ,  H04J3/0679

摘要： The invention relates to a method for synchronizing local clocks in a distributed computer network, where said computer network consists of a number of components that are connected to each other via bi-directional communication links, characterized in that an a priori configured set of components of the network generates synchronization messages and sends these synchronization messages to the network. An a priori configured set of components consumes the generated synchronization messages. One or more message-relaying components in between a component that generates a synchronization message and the component that consumes the synchronization message will add a delay value to the synchronization message reflecting the delay imposed by the message-relaying component. A component that is configured to consume a synchronization message will delay a received synchronization message upon reception for a duration that is calculated by an a priori configured value for the maximum transmission delay minus the value of the sum of all delay values added to the received message before further usage of the message in the synchronization process of said component.

摘要翻译： 本发明涉及一种用于在分布式计算机网络中同步本地时钟的方法，其中所述计算机网络由通过双向通信链路相互连接的多个组件组成，其特征在于，先前配置的一组组件 网络生成同步消息并将这些同步消息发送到网络。 先验配置的组件集消耗所生成的同步消息。 在生成同步消息的组件和消耗同步消息的组件之间的一个或多个消息中继组件将向反映由消息中继组件施加的延迟的同步消息添加延迟值。 被配置为消耗同步消息的组件将在接收到的时间段上延迟所接收的同步消息一段持续时间，该持续时间由用于最大传输延迟的先验配置值减去加到所接收消息的所有延迟值之和计算 在所述组件的同步过程中进一步使用消息之前。

公开(公告)号：US08463945B2

公开(公告)日：2013-06-11

申请号：US12995588

申请日：2008-06-02

申请人： Wilfried Steiner ,  Gunther Bauer ,  Matthias Wachter ,  Michael Paulitsch ,  Brendan Hall

发明人： Wilfried Steiner ,  Gunther Bauer ,  Matthias Wachter ,  Michael Paulitsch ,  Brendan Hall

IPC分类号： G06F15/16

CPC分类号： H04J3/0676 ,  H04J3/0652 ,  H04L7/10

摘要： A method for synchronizing local clocks in a distributed computer network, wherein end systems and switches of the network executes the method as a synchronization state machine, which uses three different frame types. The states in the state machine belong to an unsynchronized or to a synchronized set of states. All end systems being configured as Synchronization Master periodically send coldstart frames in one of the unsynchronized states, all end systems being configured as Synchronization Master react to the reception of a coldstart frame by sending a coldstart acknowledgment frame a first timeout after the reception of the coldstart frame on all replicated communication channels. First timeout is reset when a consecutive coldstart frame is received before the coldstart acknowledge is sent, and all Synchronization Masters react to the reception of a coldstart acknowledgment frame by starting a second timeout and enter a synchronized state when the second timeout expires.

摘要翻译： 一种用于在分布式计算机网络中同步本地时钟的方法，其中网络的终端系统和交换机将该方法作为使用三种不同帧类型的同步状态机执行。 状态机中的状态属于非同步状态或同步状态集。 被配置为同步主机的所有终端系统周期性地以非同步状态之一发送冷启动帧，所有终端系统被配置为同步主机通过在接收到冷启动之后发送冷启动确认帧第一超时来响应于接收到冷启动帧 帧在所有复制的通信信道上。 在发送冷启动确认之前接收到连续的冷启动帧时，首次超时重置，并且所有同步主机通过启动第二个超时响应接收到冷启动确认帧，并在第二个超时到期时进入同步状态。

公开(公告)号：US08204037B2

公开(公告)日：2012-06-19

申请号：US12198611

申请日：2008-08-26

申请人： Stefan Poledna ,  Martin Schwarz ,  Guenther Bauer ,  Wilfred Steiner ,  Brendan Hall ,  Michael Paulitsch

发明人： Stefan Poledna ,  Martin Schwarz ,  Guenther Bauer ,  Wilfred Steiner ,  Brendan Hall ,  Michael Paulitsch

IPC分类号： H04J3/24

CPC分类号： H04L12/40026 ,  H04J3/0602 ,  H04J3/0694 ,  H04L12/40032 ,  H04L69/28 ,  H04L2012/40241

摘要： A special node is used in a distributed time-triggered cluster. The special node comprises protocol functionality to establish a time base to use in communicating with a plurality of end nodes and to source timing-related frames to the plurality of end nodes in accordance with the distributed time-triggered communication protocol. The protocol functionality establishes the time base without regard to any timing-related frame sourced from any of the plurality of end nodes. In one embodiment, the protocol functionality of the special node is implemented in a low complexity manner. In one embodiment, the cluster comprises a star topology and the special node performs at least one of semantic filtering and rate enforcement. In another embodiment, the cluster comprises a bus or peer-to-peer topology and each end node is coupled to the communication channel using a low-complexity special local bus guardian.

摘要翻译： 在分布式时间触发的群集中使用特殊节点。 特殊节点包括协议功能，以建立用于与多个终端节点通信的时基，并根据分布式时间触发通信协议向多个终端节点发送与时序相关的帧。 协议功能建立时基，而不考虑来自多个终端节点中的任一个的任何与时序有关的帧。 在一个实施例中，以低复杂度方式实现特殊节点的协议功能。 在一个实施例中，集群包括星形拓扑，并且特殊节点执行语义过滤和速率实施中的至少一个。 在另一个实施例中，群集包括总线或对等拓扑，并且每个端节点使用低复杂度的特殊本地总线监控器耦合到通信信道。

公开(公告)号：US09356800B2

公开(公告)日：2016-05-31

申请号：US13749777

申请日：2013-01-25

申请人： Hermann Kopetz ,  Wilfried Steiner ,  Gunther Bauer ,  Matthias Wachter ,  Brendan Hall ,  Michael Paulitsch

发明人： Hermann Kopetz ,  Wilfried Steiner ,  Gunther Bauer ,  Matthias Wachter ,  Brendan Hall ,  Michael Paulitsch

IPC分类号： G06F15/16 ,  H04L12/44 ,  H04L12/40 ,  H04L12/417 ,  H04J3/06

CPC分类号： H04L12/44 ,  H04J3/0655 ,  H04L12/40026 ,  H04L12/417

摘要： The goal of the present invention is to improve the useful data efficiency and reliability in the use of commercially available ETHERNET controllers, in a distributed real time computer system, by a number of node computers communicating via one or more communication channels by means of TT ETHERNET messages. To achieve this goal, a distinction is made between the node computer send time (KNSZPKT) and the network send time (NWSZPKT) of a message. The KNSZPKT must wait for the NWSZPKT, so that under all circumstances, the start of the message has arrived in the TT star coupler at the NWSZPKT, interpreted by the clock in the TT star coupler. The TT star coupler is modified, so that a message arriving from a node computer is delayed in an intelligent port of the TT star coupler until the NWSZPKT can send it precisely at the NWSZPKT into the TT network.

摘要翻译： 本发明的目的是在分布式实时计算机系统中，通过多个通过一个或多个通信信道通过TT ETHERNET进行通信的节点计算机，在商业上可获得的以太网控制器的使用中提高有用的数据效率和可靠性 消息。 为了实现这一目标，区分消息的节点计算机发送时间（KNSZPKT）和网络发送时间（NWSZPKT）。 KNSZPKT必须等待NWSZPKT，所以在任何情况下，消息的开始已经到达NWSZPKT的TT星形耦合器，由TT星形耦合器的时钟解释。 TT星形耦合器被修改，使得从节点计算机到达的消息在TT星形耦合器的智能端口中被延迟，直到NWSZPKT可以在NWSZPKT将其精确地发送到TT网络中。

公开(公告)号：US08396934B2

公开(公告)日：2013-03-12

申请号：US12595414

申请日：2008-04-07

申请人： Hermann Kopetz ,  Wilfried Steiner ,  Günther Bauer ,  Matthias Wächter ,  Brendan Hall ,  Michael Paulitsch

发明人： Hermann Kopetz ,  Wilfried Steiner ,  Günther Bauer ,  Matthias Wächter ,  Brendan Hall ,  Michael Paulitsch

IPC分类号： G06F15/16

CPC分类号： H04L12/44 ,  H04J3/0655 ,  H04L12/40026 ,  H04L12/417

摘要： The goal of the present invention is to improve the useful data efficiency and reliability in the use of commercially available ETHERNET controllers, in a distributed real time computer system, by a number of node computers communicating via one or more communication channels by means of TT ETHERNET messages. To achieve this goal, a distinction is made between the node computer send time (KNSZPKT) and the network send time (NWSZPKT) of a message. The KNSZPKT must wait for the NWSZPKT, so that under all circumstances, the start of the message has arrived in the TT star coupler at the NWSZPKT, interpreted by the clock in the TT star coupler. The TT star coupler is modified, so that a message arriving from a node computer is delayed in an intelligent port of the TT star coupler until the NWSZPKT can send it precisely at the NWSZPKT into the TT network.

摘要翻译： 本发明的目的是在分布式实时计算机系统中，通过多个通过一个或多个通信信道通过TT ETHERNET进行通信的节点计算机，在商业上可获得的以太网控制器的使用中提高有用的数据效率和可靠性 消息。 为了实现这一目标，区分消息的节点计算机发送时间（KNSZPKT）和网络发送时间（NWSZPKT）。 KNSZPKT必须等待NWSZPKT，所以在任何情况下，消息的开始已经到达NWSZPKT的TT星形耦合器，由TT星形耦合器的时钟解释。 TT星形耦合器被修改，使得从节点计算机到达的消息在TT星形耦合器的智能端口中被延迟，直到NWSZPKT可以在NWSZPKT将其精确地发送到TT网络中。

公开(公告)号：US07668204B2

公开(公告)日：2010-02-23

申请号：US10993164

申请日：2004-11-19

申请人： Brendan Hall ,  Michael Paulitsch ,  Kevin Driscoll

发明人： Brendan Hall ,  Michael Paulitsch ,  Kevin Driscoll

IPC分类号： H04L12/26

CPC分类号： H04L12/44 ,  H04L63/08 ,  H04L63/12 ,  H04L63/1441

摘要： A method for authenticating a message in a time division multiple access network is provided. The method includes receiving a message from an active relaying component, inspecting a value in the message inserted by the active relaying component, and comparing the value with an expected value based on a transmission schedule.

摘要翻译： 提供了一种用于在时分多址网络中认证消息的方法。 该方法包括从活动中继组件接收消息，检查由活动中继组件插入的消息中的值，以及基于传输调度将该值与预期值进行比较。