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    • 8. 发明授权
    • Assembly and disassembly sequences of components in computerized multicomponent assembly models
    • 计算机化多组件装配模型中组件的组装和拆卸序列
    • US06725184B1
    • 2004-04-20
    • US09602119
    • 2000-06-23
    • Rajit GadhHari Srinivasan
    • Rajit GadhHari Srinivasan
    • G06F1900
    • G05B19/41805G05B2219/31065G05B2219/31066Y02P80/40Y02P90/04
    • The ability to perform Assembly/Disassembly analysis of one or more components of the geometric model (e.g., a CAD model) of a multi-component assembly is helpful for design, construction and tear-down, maintenance (in-place and replacement), and reuse/recycling of the assembly. To facilitate assembly and disassembly analysis of geometric models, methods have been developed which allow generating, editing, validating and animating/digitizing assembly/disassembly sequences and directions for 3D geometric models, e.g., CAD models. These methods allow assembly/disassembly analysis to be performed based on non-contact geometric reasoning (i.e., spatial reasoning rather than contact reasoning) to determine an optimal non-interfering sequence (a valid sequence) to disassemble/assemble the modeled components. The methods are readily implemented in computers and similar electronic processing units to allow automated assembly/disassembly analysis, as exemplified by a software system called Assembly Disassembly in Three Dimensions (A3D). The A3D system maintains a hierarchical assembly structure for the geometric model and allows the user to add constraints to possible assembly/disassembly sequences, edit the overall shape of a modeled component, compute the resultant sequence of component removals/additions and their paths, and visualize assembly/disassembly by displaying the assembled and disassembled model and animating its assembly/disassembly steps.
    • 对多组件组件的几何模型(例如,CAD模型)的一个或多个组件进行组装/拆卸分析的能力有助于设计,构造和拆除,维护(就地和更换), 以及组件的再利用/回收。 为了便于对几何模型进行组装和拆卸分析,已经开发出可以生成,编辑,验证和动画化/数字化3D几何模型(例如CAD模型)的装配/拆卸顺序和方向的方法。 这些方法允许基于非接触几何推理(即,空间推理而不是接触推理)执行装配/拆卸分析,以确定用于拆卸/组装所建模的部件的最佳非干扰序列(有效序列)。 这些方法很容易在计算机和类似的电子处理单元中实现,以允许自动装配/拆卸分析,例如称为三维尺寸拆卸(A3D)的软件系统。 A3D系统维护几何模型的分层装配结构,并允许用户为可能的装配/拆卸序列添加约束,编辑建模组件的整体形状,计算组件移除/添加及其路径的合成顺序,并可视化 通过显示组装和拆卸的模型并动画化其组装/拆卸步骤来组装/拆卸。
    • 10. 发明授权
    • Bandwidth defragmentation systems and methods in optical networks
    • 光网络中的带宽碎片整理系统和方法
    • US08666247B2
    • 2014-03-04
    • US12945956
    • 2010-11-15
    • Hari SrinivasanWaseem Reyaz KhanAnurag PrakashSaurabh Pandey
    • Hari SrinivasanWaseem Reyaz KhanAnurag PrakashSaurabh Pandey
    • H04J14/00
    • H04L45/125H04J3/1611H04J3/1652H04J2203/0058H04L45/123H04L45/50H04L45/62
    • The present disclosure provides bandwidth defragmentation systems and methods in optical networks such as Optical Transport Network (OTN), Synchronous Optical Network (SONET), Synchronous Digital Hierarchy (SDH), Ethernet, and the like. In particular, the present invention includes bandwidth defragmentation algorithms that may be used within the context of a signaling and routing protocol to avoid bandwidth defragmentation. As such, the present invention defines a mechanism for computing an end to end path for a connection in a manner that avoids bandwidth fragmentation and provides for better network utilization. For example, the present invention may include a path computation based upon administrative weight and upon fragmentation costs. This may be implemented in existing signaling and routing protocols without changes to existing protocol messages used in topology discovery. Further, the present invention optimizes available bandwidth allowing a higher probability of higher bandwidth request being admitted.
    • 本公开提供了诸如光传输网络(OTN),同步光网络(SONET),同步数字体系(SDH),以太网等光网络中的带宽碎片整理系统和方法。 特别地,本发明包括可以在信令和路由协议的上下文中使用的带宽碎片整理算法,以避免带宽碎片整理。 因此,本发明定义了以避免带宽分段并提供更好的网络利用的方式来计算连接的端到端路径的机制。 例如,本发明可以包括基于管理权重和分段成本的路径计算。 这可以在现有的信令和路由协议中实现,而不改变在拓扑发现中使用的现有协议消息。 此外,本发明优化可用带宽,允许更高带宽请求的可能性被允许。