公开(公告)号：US20150067400A1

公开(公告)日：2015-03-05

申请号：US14321010

申请日：2014-07-01

申请人： International Business Machines Corporation

发明人： Sugio Ishii

IPC分类号： G06F11/07

CPC分类号： G06F11/079 ,  G05B23/0248 ,  G05B2219/24085 ,  G06F11/0706

摘要： A method, computer program product, and system that discards unneeded elements when generating a fault tree of an object to be analyzed. Configuration information identifies a plurality of functional blocks comprised by the object and a plurality of signal lines that connect the functional blocks in logical relationships. Exclusion target information identifies a signal line that may be excluded from the plurality of signal lines without loss of information or a functional block that may be excluded from the plurality of functional blocks without loss of information. Exclusion of a block or signal line may be determined by detecting a redundant functional block or by detecting a circular signal path traversed by two or more signal lines. The generated fault tree omits the excluded block or signal line and identifies the existence of a redundant block or of a circular signal path.

摘要翻译： 一种方法，计算机程序产品和系统，当生成要分析的对象的故障树时丢弃不需要的元素。 配置信息识别由对象包括的多个功能块和以逻辑关系连接功能块的多个信号线。 排除目标信息识别在不丢失信息的情况下可以从多个信号线排除的信号线或者可以从多个功能块中排除的功能块而不丢失信息。 块或信号线的排除可以通过检测冗余功能块或通过检测由两条或更多条信号线穿过的圆形信号路径来确定。 生成的故障树省略排除的块或信号线，并识别冗余块或循环信号路径的存在。

公开(公告)号：US5353238A

公开(公告)日：1994-10-04

申请号：US758062

申请日：1991-09-12

申请人： Paul R. Neef ,  Martin S. Newell ,  David Richards ,  Ashok Singh

发明人： Paul R. Neef ,  Martin S. Newell ,  David Richards ,  Ashok Singh

IPC分类号： G05B19/4063 ,  G05B15/00

CPC分类号： G05B19/4063 ,  G05B2219/24063 ,  G05B2219/24064 ,  G05B2219/24065 ,  G05B2219/24085 ,  G05B2219/24103 ,  G05B2219/24104 ,  G05B2219/33303 ,  G05B2219/34493 ,  G05B2219/45104

摘要： An on-line real time process monitoring system determines not only the existence of a plurality of trouble conditions but also which condition from the plurality should be responded to first. Appropriate display screens are then selected and displayed for the operator to assist in resolution of the problem.

摘要翻译： 在线实时过程监控系统不仅确定了多个故障条件的存在，而且还确定了应该首先响应多个故障条件。 然后选择并显示适当的显示屏幕以供操作者帮助解决问题。

公开(公告)号：US20060085108A1

公开(公告)日：2006-04-20

申请号：US10966578

申请日：2004-10-14

申请人： Jeff Grier ,  James Cancilla ,  Sunil Reddy ,  Dale Trsar ,  Bradley Lewis

发明人： Jeff Grier ,  James Cancilla ,  Sunil Reddy ,  Dale Trsar ,  Bradley Lewis

IPC分类号： G01M17/00

CPC分类号： G05B23/0248 ,  G05B23/0297 ,  G05B2219/24053 ,  G05B2219/24085 ,  G05B2219/2637

摘要： A method is provided for updating a fault tree used in diagnosis of a condition of a machine. The fault tree is a sequence of test modules. Each of the test modules is assigned a confidence score indicating the likelihood that the test module will lead to a diagnosis. The method comprising the steps of obtaining service data from a plurality of service occasions for like machines, revising the confidence score for at least one test module in the fault tree based on the service data; and revising the sequence of the test modules in the fault tree based on the revised confidence score(s). The sequence is revised such that the most likely modules to result in a diagnosis are listed first, and the least likely ones are listed last. The re-ordering is based on feedback from actual service instances in the field, and thus is more likely to reflect real-world conditions. The result is that service technicians using the revised fault trees work more efficiently, at least on a statistical basis.

摘要翻译： 提供了一种用于更新用于诊断机器状况的故障树的方法。 故障树是一系列测试模块。 每个测试模块被分配一个置信度分数，表明测试模块将导致诊断的可能性。 该方法包括以下步骤：从类似机器的多个服务场合获取服务数据，基于服务数据修改故障树中的至少一个测试模块的置信度分数; 并根据修订的置信度得分修正故障树中测试模块的顺序。 该序列被修改，使得最可能的导致诊断的模块首先列出，并且最不可能的模块列在最后。 重新排序是基于实地服务实例的反馈，因此更有可能反映现实世界的条件。 结果是，使用修订的故障树的维修技术人员至少在统计的基础上更有效地工作。

公开(公告)号：US5127012A

公开(公告)日：1992-06-30

申请号：US657028

申请日：1991-02-19

申请人： Michael K. Hiliger

发明人： Michael K. Hiliger

IPC分类号： G01R31/319 ,  G03G15/00

CPC分类号： G03G15/55 ,  G01R31/31912 ,  G05B2219/24072 ,  G05B2219/24074 ,  G05B2219/24085 ,  G05B2219/24086

摘要： A document production apparatus has a plurality of replaceable units and a diagnostic system for determining the condition of the replaceable units. A computer control system monitors and controls document production functions, and includes a display for providing instructions for error diagnostic sequences. A diagnostic microprocessor for processing diagnostic signals representative of document production device conditions, has data entries, outputs, and storage for diagnostic routines. Error isolation diagnostic procedures identify suspect replaceable units. The procedures include displaying (1) a list of symptoms from which a user can select the symptom which best describes a condition of the document production apparatus, (2) a stored list of suspect replaceable units which are associated with a selected symptom, and (3) the status of each suspect replaceable unit displayed. The list of suspect replaceable units are displayed in an order of the probability of defect.

摘要翻译： 文件生产装置具有多个可更换单元和用于确定可替换单元的状态的诊断系统。 计算机控制系统监视和控制文档生成功能，并且包括用于提供错误诊断序列的指令的显示器。 用于处理代表文件生产设备状况的诊断信号的诊断微处理器具有用于诊断程序的数据输入，输出和存储。 错误隔离诊断程序识别可疑的可更换单元。 这些步骤包括显示（1）用户可以从中选择最能描述文档制作装置的状况的症状的症状列表，（2）与所选择的症状相关联的可疑可更换单元的存储列表，和 3）显示每个嫌疑人可更换单位的状态。 可疑可更换单元的列表按缺陷概率的顺序显示。

公开(公告)号：US4817092A

公开(公告)日：1989-03-28

申请号：US105063

申请日：1987-10-05

申请人： Luan J. Denny

发明人： Luan J. Denny

IPC分类号： G06F11/22 ,  G06F11/25 ,  G06F11/32 ,  H04M3/24 ,  H04B3/46

CPC分类号： H04M3/247 ,  G05B2219/24072 ,  G05B2219/24073 ,  G05B2219/24074 ,  G05B2219/24085 ,  G05B2219/24086 ,  G06F11/2205 ,  G06F11/2257 ,  G06F11/2273 ,  G06F11/32 ,  Y10S706/909 ,  Y10S706/917

摘要： A method and apparatus for detecting and analyzing errors in a communications system is described. The method employs expert system techniques to isolate failures to specific field replaceable units and attempts to restore the failing unit to service, if the system will not be adversely affected, by removing it from service, resetting the resource and returning it to service if it passes retesting. The expert system techniques include detailed decision trees designed for each resource in the system. The decision trees also filter extraneous sources of errors from affecting the error analysis results.

公开(公告)号：US08335582B2

公开(公告)日：2012-12-18

申请号：US12368760

申请日：2009-02-10

申请人： Rinat Shimshi

发明人： Rinat Shimshi

IPC分类号： G06F19/00

CPC分类号： G05B23/0272 ,  G05B19/0428 ,  G05B2219/24085 ,  G05B2219/24093 ,  G05B2219/24103

摘要： In one embodiment, a method for providing a user interface to graphically indicate a cause for fault-related events includes providing a user interface to illustrate a plurality of fault-related events for a plurality of recipes performed on a plurality of manufacturing process hardware tools, presenting in the user interface the plurality of recipes in a first axis and the plurality of manufacturing process hardware tools in a second axis, and graphically indicating in the user interface whether the plurality of fault-related events were caused by one of the plurality of manufacturing process hardware tools or one of the plurality of recipes performed on the one manufacturing process hardware tools.

摘要翻译： 在一个实施例中，一种用于提供图形化地指示故障相关事件的原因的用户界面的方法包括提供用户界面来说明在多个制造过程硬件工具上执行的多个配方的多个故障相关事件， 在用户界面中呈现第一轴中的多个配方和第二轴中的多个制造过程硬件工具，并且在用户界面中图形地指示多个故障相关事件是否由多个制造中的一个引起 处理硬件工具或在一个制造过程硬件工具上执行的多个配方之一。

公开(公告)号：US20030139837A1

公开(公告)日：2003-07-24

申请号：US10204129

申请日：2002-11-25

发明人： Edmund John Marr

IPC分类号： G06F019/00

CPC分类号： G05B23/0278 ,  G05B2219/24085 ,  Y04S10/522

摘要： A System and a method are provided for the monitoring of a control process in a process plant such as a power generation plant. The process plant contains a plurality of plant items to be controlled, such as valves, pumps, turbines and so forth. At least some of these have sensors attached to them which output a digital (binary) or analog signal indicative of the status of that plant item. Many plant items also have control actuators for shutting and opening the valve, for example. The plant item sensor outputs are connected to a network and a control algorithm representing the control logic of the process plant processes the sensor outputs. The output of one of a plurality of control functions forming the control algorithm is selected to begin a fault tracing procedure. The control logic forming the control algorithm is visually displayed on a computer monitor. The selected control function output is traced back to its source via the control algorithm shown on the computer monitor to identify the root cause of a fault.

摘要翻译： 提供了一种系统和方法，用于监控过程工厂如发电厂中的控制过程。 过程工厂包含多个待控制的工厂物品，例如阀门，泵，涡轮机等。 这些传感器中的至少一些具有连接到它们的传感器，其输出指示该工厂项目的状态的数字（二进制​​）或模拟信号。 例如，许多植物物品还具有用于关闭和打开阀的控制致动器。 工厂物品传感器输出连接到网络，并且表示过程工厂的控制逻辑的控制算法处理传感器输出。 选择形成控制算法的多个控制功能之一的输出来开始故障跟踪过程。 形成控制算法的控制逻辑可视地显示在计算机监视器上。 所选择的控制功能输出通过计算机监视器上显示的控制算法追溯到其源，以识别故障的根本原因。

公开(公告)号：US5237518A

公开(公告)日：1993-08-17

申请号：US602945

申请日：1990-10-27

申请人： Janos Sztipanovits ,  Csaba Biegl ,  Gabor Karsai ,  Samir Padalkar ,  Nobuji Miyasaka ,  Koji Okuda

发明人： Janos Sztipanovits ,  Csaba Biegl ,  Gabor Karsai ,  Samir Padalkar ,  Nobuji Miyasaka ,  Koji Okuda

IPC分类号： G05B23/02 ,  G06F19/00 ,  G08B29/14

CPC分类号： G05B23/0297 ,  G05B23/0248 ,  G08B29/14 ,  G05B2219/24063 ,  G05B2219/24064 ,  G05B2219/24065 ,  G05B2219/24085 ,  Y10S706/911

摘要： An optimization method is used in a real-time diagnostic system that monitors alarm sources and detects possible sources of failure in an industrial process. When the diagnostic system detects one or more alarms, it determines which components are likely sources of failure. The system determines the level of criticality of certain other, currently off-line, alarms sources and schedules the off-line alarms for evaluation according to their levels of criticality. The system refines its analysis of likely sources of failure by evaluating the status of the previously off-line alarm sources Those previously off-line alarm sources are added to the grouping of possible sources of failure prior to repeating the evaluation process. The evaluation process is repeated, with the analysis of likely causes of failure being continually refined.

公开(公告)号：US11853048B2

公开(公告)日：2023-12-26

申请号：US15734332

申请日：2019-05-09

申请人： Siemens Aktiengesellschaft

发明人： Francesco Montrone ,  Kai Höfig ,  Marc Zeller

IPC分类号： G05B23/02

CPC分类号： G05B23/0248 ,  G05B23/0275 ,  G05B2219/24085

摘要： A computer-implemented method and device for resolving closed loops in automatic fault tree analysis of a multi-component system is provided. Also provided is a method for resolving closed loops in automatic fault tree analysis of a multi-component system, the closed loops corresponding, for example, to closed-loop control circuitry of a multi-component device. The closed loops are first identified in a top-down approach within failure propagation paths. Next, the loops are resolved by setting each loop interconnection to Boolean TRUE, adjusting the fault tree in a specific way and finally setting each loop interconnection to Boolean FALSE. Embodiments of the invention are relevant for analyzing safety-critical systems. However, the present concepts are not limited to these applications and may be applied to general use cases where fault tree analysis is applicable. The proposed solution advantageously provides a method that features linear complexity.

公开(公告)号：US09720394B2

公开(公告)日：2017-08-01

申请号：US13411897

申请日：2012-03-05

申请人： Rudolf Pohlan

发明人： Rudolf Pohlan

IPC分类号： G05B19/00 ,  G05B19/042

CPC分类号： G05B19/042 ,  G05B2219/23126 ,  G05B2219/24085

摘要： A method for operating an automation system having automation units, a computer program for implementing the method and a computer system having such a computer program, wherein technology-oriented plant description data is stored in the automation system, the plant description data is organized in an object tree with nodes and edges, and wherein the plant description data comprises references to program data in individual automation programs and nodes of the object tree (36) containing references to program data are stored in or at least also in that automation unit which provides the respective program data.