会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 4. 发明公开
    • METHOD TO IMPROVE AVAILABILTY OF REAL-TIME COMPUTER NETWORKS
    • EP3468115A1
    • 2019-04-10
    • EP17195409.2
    • 2017-10-09
    • TTTech Computertechnik AG
    • Steiner, WilfriedBauer, GüntherJakovljevic, MirkoGeven, Arjan
    • H04L12/725H04L7/00H04L29/06H04L12/931
    • The invention relates to a method for transmitting real-time messages in a computer network (100), in particular real-time computer network, wherein said computer network comprises two or more computing nodes (21, 22, 23, 24, 25, 26) and one or more star couplers (1, 2, 3, 4), wherein said computing nodes (21, 22, 23, 24, 25, 26) are interconnected via at least one star coupler (1, 2, 3, 4), wherein each computing node (21, 22, 23, 24, 25, 26) is connected to at least one star coupler (1, 2, 3, 4) via at least one of the communication links (50), and wherein the computing nodes exchange messages (M1, M2) with one another and with the at least one star coupler, and wherein star couplers, which are synchronized to a global time base (C), transmit a first non-empty set (SSET) of real-time messages according to a synchronized communication paradigm, and/or wherein computing nodes (21, 22, 23, 24, 25, 26), which are synchronized to a or the global time base (C), transmit said first non-empty set of real-time (SSET) messages according to a or the synchronized communication paradigm, wherein a star coupler (1, 2, 3, 4), which is not synchronized to a global time base (C), and/or a computing node (21, 22, 23, 24, 25, 26), which is not synchronized to a global time base (C), transmits a second non-empty subset (CSET) of said first non-empty subset (SSET) of real-time messages according to an unsynchronized communication paradigm and stops the transmission of said second non-empty subset (CSET) of real-time messages according to the synchronized communication paradigm.
    • 5. 发明公开
    • METHOD AND APPARATUS FOR THE DETERMINATION OF THE SLOT-DURATION IN A TIME-TRIGGERED CONTROL SYSTEM
    • EP3467598A1
    • 2019-04-10
    • EP17194776.5
    • 2017-10-04
    • TTTech Computertechnik AG
    • Kopetz, Hermann
    • G05B19/042H04L12/40G06F9/44
    • Method for a determination of the optimal duration of a time slot for computational actions in a time-triggered controller, the controller comprising a sensor subsystem, a computational subsystem, an actuator subsystem and a time-triggered communication system, wherein the time-triggered communication system is placed between the sensor subsystem, the computational subsystem, the actuator subsystem and the monitor subsystem, wherein an anytime algorithms is executed in the computational subsystem, and wherein a plurality of execution slot durations of the anytime algorithms is probed during the development phase, starting from the minimum execution slot duration, increasing this slot duration by the execution slot granularity until the maximum execution slot duration is reached, and wherein in each one of the execution slot durations a multitude of frames is executed in a destined application environment, and wherein in each frame the computational subsystem calculates imprecise anticipated values of observable state variables by interrupting the execution of the anytime algorithm at the end of the provided execution slot duration, using data received from the sensor subsystems at the beginning of the frame, and wherein in each frame the monitor subsystem calculates the precise anticipated values of observable state variables by executing the anytime algorithm until completion using data received from the sensor subsystems at the beginning of the frame, and wherein the monitor subsystem computes an anytime-algorithm impreciseness by calculating the absolute values of the respective difference between these precise anticipated values of observable state variables and the imprecise anticipated values of observable state variables contained in the messages delivered from the computational subsystems to the monitor subsystem at the end of the frame, and wherein the monitor subsystem computes a model error by calculating the absolute values of the difference between these precise anticipated values of observable state variables and the respective acquired values of observable state variables contained in messages from the sensor subsystem to the monitor subsystem at the end of the frame, and wherein an average anytime-algorithm impreciseness and an average model error of a slot duration are calculated by the monitor subsystem by averaging the results of the multitude of probed frames of the slot, and wherein at the end of the development phase an execution slot duration for the computational subsystem is selected out of the probed execution slot durations, wherein the sum of the average model error and the average anytime-algorithm impreciseness is minimal.
    • 9. 发明公开
    • Centralized traffic shaping for data networks
    • Zentralisierte VerkehrsformungfürDatennetzwerke
    • EP2506510A1
    • 2012-10-03
    • EP12161140.4
    • 2012-03-23
    • Honeywell International Inc.TTTech Computertechnik AG
    • Hall, BrendanVaradarajan, SrivatsanSteiner, WilfriedBauer, Guenther
    • H04L12/56
    • H04L47/22H04L49/501
    • A communication system comprises a plurality of nodes and a switch having a plurality of ports, each port coupled to one of the plurality of nodes. At least one of the plurality of nodes is configured to transmit a first unregulated flow of frames associated with a first virtual link to a first port of the plurality of ports of the switch. The switch is configured to regulate the first unregulated flow of frames by buffering frames of the first unregulated flow in a first input queue associated with the first virtual link, applying traffic shaping parameters associated with the first virtual link to the frames in the first input queue associated with the first virtual link, and outputting the first regulated flow of frames to one or more output queues associated with one or more output ports based on the first virtual link.
    • 通信系统包括多个节点和具有多个端口的交换机,每个端口耦合到多个节点之一。 多个节点中的至少一个被配置为将与第一虚拟链路相关联的第一未调节帧的流发送到交换机的多个端口中的第一端口。 交换机被配置为通过在与第一虚拟链路相关联的第一输入队列中缓冲第一未调节流的帧来调节帧的第一未调节流,将与第一虚拟链路相关联的流量整形参数应用于第一输入队列中的帧 与所述第一虚拟链路相关联,并且基于所述第一虚拟链路将所述第一调节流输出到与一个或多个输出端口相关联的一个或多个输出队列。
    • 10. 发明公开
    • METHOD FOR SYNCHRONIZING LOCAL CLOCKS IN A DISTRIBUTED COMPUTER NETWORK
    • 在分布式计算机网络中同步本地时钟的方法
    • EP2297885A1
    • 2011-03-23
    • EP08747910.1
    • 2008-06-02
    • TTTech Computertechnik AGHoneywell International Inc.
    • STEINER, WilfriedBAUER, GünterWÄCHTER, MatthiasPAULITSCH, MichaelHALL, Brendan
    • H04J3/06
    • H04J3/0676H04J3/0652H04L7/10
    • 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, where each end system is connected to at least two switches via bidirectional communication links, and where a configured subset of end systems and switches executes the method in form of a synchronization state machine, characterized in that a) the state machine uses at least three different frame types (coldstart frame type, coldstart acknowledge frame type, and integration frame type), and b) 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, and c) all end systems that are configured as Synchronization Master periodically send coldstart frames in one of the unsynchronized states, and d) all end systems that are configured as Synchronization Master react to the reception of a coldstart frame by sending a coldstart acknowledgment frame a configurable first timeout (CSO) 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 (CSO) is reset when a consecutive coldstart frame is received before the coldstart acknowledge is sent, and e) all end systems that are configured as Synchronization Master react to the reception of a coldstart acknowledgment frame by starting a configurable second timeout (CAO), provided that they are not already executing said first timeout (CSO), and entering a synchronized state when said second timeout (CAO) expires.
    • 本发明涉及一种用于同步分布式计算机网络中的本地时钟的方法,其中所述计算机网络由多个终端系统和至少两个交换机组成,其中每个终端系统通过双向通信链路连接到至少两个交换机,以及 其中配置的终端系统和交换机子集以同步状态机的形式执行该方法,其特征在于a)状态机使用至少三种不同的帧类型(冷启动帧类型,冷启动确认帧类型和整合帧类型) ,以及b)状态机中的状态或者被认为属于一组未被同步的状态或者属于同步的一组状态,以及c)被配置为同步主机的所有终端系统周期性地发送冷启动帧 非同步状态,以及d)配置为同步主设备的所有终端系统通过发送冷启动对冷启动帧的接收作出反应 rt确认在所有复制的通信信道上接收到冷启动帧之后的可配置第一超时(CSO),假定终端系统处于其中同步状态机定义用于冷启动帧的转换的状态,并且其中所述第一超时 (CSO)在发送冷启动确认之前接收到连续的冷启动帧时复位; e)配置为同步主设备的所有终端系统通过启动可配置的第二超时(CAO)来响应冷启动确认帧的接收, 只要它们尚未执行所述第一超时(CSO),并且当所述第二超时(CAO)到期时进入同步状态。