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    • 1. 发明授权
    • Secure clock synchronization
    • 安全时钟同步
    • US09363273B2
    • 2016-06-07
    • US13340994
    • 2011-12-30
    • Hubert KirrmannJean-Charles Tournier
    • Hubert KirrmannJean-Charles Tournier
    • H04J3/06H04L29/06G04G7/00H04L9/32
    • H04L7/0008G04G7/00H04J3/0664H04J3/067H04L9/3242H04L63/123
    • The present disclosure provides a secure one-step IEEE 1588 clock using either a symmetric or asymmetric protection scheme. Clocks of mission-critical or highly-available devices in industrial automation systems connected to a communication network are synchronized by sending, by a master clock, a synchronization message, e.g., a single message of the one-step-clock type according to IEEE 1588, including a time stamp, and by receiving and evaluating, by a slave clock, the synchronization message. A synchronization component or module of the master clock prepares, or composes, prior to a projected send time, a synchronization message including a time stamp of the projected send time, and secures the synchronization message in advance of the projected send time. Securing the synchronization message occurs by suitable cryptographic means allowing for authentication of the time stamp at a receiving slave clock. At the projected send time, the secured synchronization message is transmitted.
    • 本公开提供了使用对称或非对称保护方案的安全的一步IEEE 1588时钟。 连接到通信网络的工业自动化系统中的任务关键或高可用设备的时钟通过主时钟发送同步消息(例如,根据IEEE 1588的一步时钟类型的单个消息)来同步 ,包括时间戳,并且通过从属时钟接收和评估同步消息。 主时钟的同步组件或模块在投影的发送时间之前准备或组合包括投影的发送时间的时间戳的同步消息,并且在预计的发送时间之前确保同步消息。 通过允许在接收从时钟处的时间戳的认证的合适的加密装置发生保护同步消息。 在预计的发送时间,发送安全的同步消息。
    • 3. 发明授权
    • Method and storage device for saving the computer status during interrupt
    • US4905196A
    • 1990-02-27
    • US105448
    • 1987-10-05
    • Hubert Kirrmann
    • Hubert Kirrmann
    • G06F9/46G06F9/48G06F11/14G06F11/20G06F12/16
    • G06F11/1441G06F11/20
    • In order to reduce the down time of a computer (1, 4-8) caused by a fault or interrupt in the program run, program recovery points are provided which are time-dependent or can be preset in the main program of a useful program, and when these recovery points are reached, the computer status is stored in at least one fault-tolerant archival memory (5, 6). The computer status includes the status of the variables of a useful program being executed, the register status of the processor (1) and the register status of the input/output devices of the computer. During execution of the useful program, at least a part of the current computer status is stored in a main memory (4) and copied into an archival memory (6) when a program recovery point is reached. By using a small, fast cache memory (7) between the processor (1) and the main memory (4), the write cycles in the archival memories (5, 6) may be reduced since a variable is replaced in the main memory (4) only when it is displaced from the cache memory by a variable which may have been updated several times. A further improvement is achieved by using an associative stack (8) on the bus (2, 3) as the main (4) and the two archival memories (5, 6). All modifications in the main memory (4) are simultaneously entered into the stack (8) and into an archival memory (5) without involving the processor (1). In the stack (8), address data pairs are entered in the order of occurrence, a character recording the respective state of the stack and allocating locations to new address/data pairs. At the recovery point, only updated data need to be transferred into the archival memory. The main memory (4) can be integrated into an archival memory having a read/write memory area and a fault-tolerant tributary memory area. A cascaded memory or a virtual memory of the computer can also be used for saving the computer status.
    • 4. 发明授权
    • Operating a substation automation system
    • 操作变电站自动化系统
    • US09484738B2
    • 2016-11-01
    • US12767255
    • 2010-04-26
    • Hubert KirrmannMichael Obrist
    • Hubert KirrmannMichael Obrist
    • G06F1/28H02H7/26
    • H02H7/261Y02E60/723Y04S10/16
    • A method and system are provided for operation of substations in which protection, control and measurement devices (e.g., Intelligent Electronic Devices (IEDs)) exchange operational data over a data network, for example, according to IEC standard 61850. During maintenance, commissioning and fault situations, when one or several IEDs are inoperable, the data that these IEDs would have produced is substituted to ensure availability of the substation. To this effect, a dedicated substitute device is permanently installed that can take the role of any IED, and that is automatically configured out of a standard configuration description (SCD) file that describes the SA system.
    • 提供了一种用于操作变电站的方法和系统,其中保护,控制和测量设备(例如智能电子设备(IED))例如根据IEC标准61850在数据网络上交换操作数据。在维护,调试和 故障情况下,当一个或多个IED不可操作时,这些IED产生的数据将被替换,以确保变电站的可用性。 为此,永久性地安装了一个可以承担任何IED角色的专用替代设备,并从描述SA系统的标准配置描述(SCD)文件中自动配置。
    • 5. 发明授权
    • Method of testing a control system
    • 测试控制系统的方法
    • US06240528B1
    • 2001-05-29
    • US09149172
    • 1998-09-08
    • Hubert KirrmannPeter Terwiesch
    • Hubert KirrmannPeter Terwiesch
    • G06F1100
    • G06F11/3409G05B17/02G06F11/261G06F11/3466G06F2201/86
    • Specimen programs (S1) of a specimen object (1) can be tested by means of an observation tool (2), and the duration of program routines registered and evaluated. In order to achieve a better testing depth, the observation tool (2) is additionally supplied with at least one measurement and/or process signal from at least one simulated process (P′) from a real time simulator (4) or from a process (P) of a plant (3). At least one signal is transmitted from the simulated process (P′) to the observation tool (2), it being possible for this signal to be generated by the process (P) or (P′), and said signal triggering a test by the observation tool (2).
    • 可以通过观察工具(2)测试样本物体(1)的样本程序(S1),并记录和评估程序程序的持续时间。 为了获得更好的测试深度,观察工具(2)还附加地提供来自实时模拟器(4)的至少一个模拟过程(P')或来自过程的至少一个测量和/或过程信号 (3)的植物(P)。 至少一个信号从模拟过程(P')发送到观察工具(2),该信号可以由过程(P)或(P')产生,并且所述信号触发测试 观察工具(2)。
    • 7. 发明授权
    • Reception of redundant and non-redundant frames
    • 接收冗余和非冗余帧
    • US08582426B2
    • 2013-11-12
    • US11798765
    • 2007-05-16
    • Hubert KirrmannDacfey Dzung
    • Hubert KirrmannDacfey Dzung
    • G01R31/08G06F11/00G08C15/00H04J1/16H04J3/14H04L1/00H04L12/26
    • H04L1/22H04L12/40189H04L12/413H04L41/0659H04L69/40H04L2012/40273Y04S40/166
    • The present disclosure relates to highly available communication networks, e.g., for industrial or utility applications such as substation automation. The devices are connected to two redundant lines through two independent transceivers and bus controllers, i.e. the physical layer and the link layer of the corresponding protocol stack is duplicated. For seamless operation, a sender sends frames simultaneously over both lines and a receiver accepts whichever frame of a pair comes first and ignores the late frame. An exemplary method is disclosed for discarding duplicate frames at the link layer without considering the higher protocol layers, based on a counter inserted in the frame and an algorithm for rejection, with a corresponding means to detect which frames operate according to the redundancy protocol.
    • 本公开涉及高可用性通信网络,例如用于诸如变电站自动化的工业或公用事业应用。 这些设备通过两个独立的收发器和总线控制器连接到两条冗余线路,即相应协议栈的物理层和链路层被复制。 为了无缝操作,发送方通过两条线同时发送帧,接收器接收一对帧中的哪一帧,并忽略后期帧。 公开了一种用于在链路层丢弃重复帧的示例性方法,而不考虑基于插入在帧中的计数器的更高协议层和用于拒绝的算法,具有根据冗余协议检测哪些帧操作的相应装置。
    • 8. 发明授权
    • Ring coupling nodes for high availability networks
    • 用于高可用性网络的环耦合节点
    • US08582424B2
    • 2013-11-12
    • US13010216
    • 2011-01-20
    • Hubert Kirrmann
    • Hubert Kirrmann
    • H04L12/26
    • H04L12/437
    • Exemplary embodiments are directed to a network coupling device connected over a respective first and second port in a communication network with a ring topology operating with full duplex links. When sending information, the coupling device inserts two duplicate frames in the ring, one over each of its ports. The frames containing information that identifies these two frames as a pair of duplicates of the same frame. Each similar device in the ring includes a Switching Element that receives a frame from one port and forwards the frame to the other port without modification. The Switching Element discards a frame that was originally sent by that same node, discards a frame that it already forwarded in that direction, and/or discards a frame that it cannot recognize as being a member of a pair. A further similar device on the ring is able to receive the two duplicate frames and pass the earlier received frames of a pair to the application, while discarding the later, received frames based on the identification within the frames.
    • 示例性实施例涉及通过通信网络中的相应第一和第二端口与具有全双工链路操作的环形拓扑连接的网络耦合设备。 当发送信息时,耦合设备在环中插入两个重复帧,每个端口都有一个。 包含将这两个帧标识为同一帧的一对副本的信息的帧。 环中的每个类似设备包括从一个端口接收帧并将帧转发到另一端口而不进行修改的交换单元。 切换元件丢弃最初由同一个节点发送的帧,丢弃已经以该方向转发的帧,和/或丢弃它不能识别为对的成员的帧。 环上的另一个类似的设备能够接收两个重复的帧,并将一对的较早接收的帧传递给应用,同时基于帧内的标识丢弃稍后接收的帧。
    • 9. 发明授权
    • System level testing for substation automation systems
    • 变电站自动化系统的系统级测试
    • US08265908B2
    • 2012-09-11
    • US12766278
    • 2010-04-23
    • Hubert KirrmannMichael ObristWolfgang Wimmer
    • Hubert KirrmannMichael ObristWolfgang Wimmer
    • G06F11/30G06F17/40G06F19/00
    • H02H11/008G01R31/3272H02J13/0062Y02E60/723Y02E60/724Y02E60/7838Y04S10/16Y04S10/18Y04S40/124
    • Protection, measurement and control IEDs in a substation compute if switches they control may be operated safely, according to interlocking rules or physical principles as well as the dynamic topology of the substation. The IEDs have access to the substation electrical topology, to real-time information generated by other IEDs, and to the rules for interlocking. A standardized Substation Configuration Description (SCD) of the substation for which a Substation Automation system is intended, and a standardized description of the implemented device functions or capabilities of an individual IED are utilized. The substation topology is available from SCD file, real time information about the position of switches and line voltage/current can be obtained via an appropriate protocol, and the interlocking rules are available in script form. These features apply both to simulated and real devices, and increase system testing possibilities by supporting an efficient configuration of a simulation.
    • 变电站中的保护,测量和控制IED可以根据互锁规则或物理原理以及变电站的动态拓扑结构来控制其控制的开关是否可以安全运行。 IED可以访问变电站电气拓扑,其他IED生成的实时信息以及互锁规则。 使用变电站自动化系统的变电站的标准化变电站​​配置说明(SCD),以及对已实现的单独IED的设备功能或能力的标准化描述。 变电站拓扑可从SCD文件获得,可以通过适当的协议获得关于开关位置和线路电压/电流的实时信息,并且联锁规则以脚本形式提供。 这些功能既适用于模拟和实际设备,也可以通过支持模拟的高效配置来增加系统测试的可能性。
    • 10. 发明申请
    • SYSTEM LEVEL TESTING FOR SUBSTATION AUTOMATION SYSTEMS
    • 用于基站自动化系统的系统级测试
    • US20090070062A1
    • 2009-03-12
    • US12256952
    • 2008-10-23
    • Hubert KirrmannClaus VetterMichael ObristTetsuji Maeda
    • Hubert KirrmannClaus VetterMichael ObristTetsuji Maeda
    • G06F19/00
    • G01R31/327H04L43/0817H04L43/50Y04S40/168
    • The disclosure is concerned with the testing of system level functionality involving several Protection, Control and Measurement (PCM) Intelligent Electronic Devices (IEDs) of a Substation Automation (SA) system for IEC 61850 compliant substations. An extensive testing of all conceivable control or protection functions/applications of an extended SA system comprising a large number of IEDs with a multitude of configurations is facilitated by simulating at least one of the IEDs in a testing device. Hence, only a limited number of IEDs are physically present as individual devices in a test environment, the behaviour of at least one further IED being simulated by a dedicated testing device with appropriate data processing means. The testing device sends network messages indicative of the behaviour of the simulated IED according to its communication and device configuration over a substation communication network to the physically present IED to be tested. The proper working of the configured IED functions, i.e. the expected correct action as triggered by the testing device, are then verified.
    • 本公开涉及对符合IEC 61850标准变电站的变电站自动化(SA)系统的几个保护,控制和测量(PCM)智能电子设备(IED)的系统级功能的测试。 通过模拟测试装置中的至少一个IED,便于对包含大量具有多种配置的IED的扩展SA系统的所有可想到的控制或保护功能/应用的广泛测试。 因此,只有有限数量的IED作为测试环境中的单独设备物理存在,由具有适当数据处理装置的专用测试设备模拟至少一个另外的IED的行为。 测试设备根据其通信和设备配置在变电站通信网络上发送指示仿真IED的行为的网络消息到要测试的物理存在的IED。 然后验证配置的IED功能的适当工作,即由测试设备触发的期望的正确动作。