Discrete event parallel simulation
    1.
    发明授权
    Discrete event parallel simulation 有权
    离散事件并行仿真

    公开(公告)号:US07257526B1

    公开(公告)日:2007-08-14

    申请号:US09543284

    申请日:2000-04-05

    IPC分类号: G06G17/50 G06G17/10 G06F9/46

    CPC分类号: G06F17/5009

    摘要: An efficient parallel event simulation method is implemented by simulating blocks of M edge events, where M is approximately equal to e logeN, and N being the number of interconnected processing elements. Following a simulation iteration, each processing element shares information with adjacent processing elements that relates to events that the processing elements simulated which may affect the simulation of events at the neighbor processing elements. When the communication reveals that the information that is shared by a neighbor processing elements is different from the information that the processing element assumed, then the arriving information is kept and the simulation process is repeated. In executing the repeated simulations of a block, the same random variable values are employed. When all of the processing elements find that the arriving shared information is the same as the information already known to the receiving processing element, simulation of the block ends. A new simulation floor is ascertained, and another block of event is simulated.

    摘要翻译: 通过模拟M边缘事件的块来实现有效的并行事件模拟方法,其中M近似等于e log N,N是互连处理元件的数量。 在模拟迭代之后,每个处理元件与相关处理元件共享信息,这些处理元件涉及可以影响相邻处理元件上的事件的模拟的处理元件被模拟的事件。 当通信显示由相邻处理元件共享的信息与处理元件假设的信息不同时,保持到达的信息并重复模拟处理。 在执行块的重复模拟时,采用相同的随机变量值。 当所有处理元件发现到达的共享信息与接收处理元件已知的信息相同时,块的模拟结束。 确定了新的模拟层,并且模拟了另一块事件。

    Method for estimating power consumption and noise levels of an integrated circuit, and computer-readable recording medium storing a program for estimating power consumption and noise levels of an integrated circuit
    2.
    发明授权
    Method for estimating power consumption and noise levels of an integrated circuit, and computer-readable recording medium storing a program for estimating power consumption and noise levels of an integrated circuit 失效
    用于估计集成电路的功率消耗和噪声水平的方法,以及存储用于估计集成电路的功率消耗和噪声水平的程序的计算机可读记录介质

    公开(公告)号:US07076405B1

    公开(公告)日:2006-07-11

    申请号:US09661919

    申请日:2000-09-14

    申请人: Taku Uchino

    发明人: Taku Uchino

    IPC分类号: G06G17/10

    CPC分类号: G06F17/5022 G06F2217/78

    摘要: The present invention is related to a method for estimating power consumption and noise levels of an integrated circuit which is composed of logic gates connected in the form of a plurality of stages. (1) At the outset, output signal waveforms and occurrence probabilities thereof at the first stage of the logic gates are calculated by the use of signal waveforms and occurrence probabilities thereof at primary input terminals of the integrated circuit; (2) next, output signal waveforms and occurrence probabilities thereof at the second stage of the logic gates are calculated by the use of the output signal waveform and the occurrence probability thereof at the primary input terminals and the output signal waveform and the occurrence probability thereof at the first stage of the logic gates; and (3) then, output signal waveforms and occurrence probabilities thereof at the n-th stage (n is a natural number) of the logic gates are calculated by the use of the output signal waveform and the occurrence probability thereof at the primary input terminals and the output signal waveform and the occurrence probability thereof at the (n-1)th stage of the logic gates. Thereby, types of the respective elementary waveforms, occurrence probabilities and signal correlations are calculated relating to signals located on each wiring of each stage inside of the integrated circuit and occurring within a predetermined time period.

    摘要翻译: 本发明涉及一种用于估计由以多级形式连接的逻辑门组成的集成电路的功耗和噪声电平的方法。 (1)首先,通过在集成电路的主输入端使用信号波形及其发生概率来计算逻辑门的第一级的输出信号波形及其出现概率; (2)接下来,通过使用输出信号波形及其在主输入端的发生概率和输出信号波形及其发生概率来计算逻辑门的第二级的输出信号波形及其发生概率 在逻辑门的第一阶段; 和(3)然后,通过使用输出信号波形及其在主输入端的发生概率来计算逻辑门的第n级(n为自然数)的输出信号波形及其出现概率 以及逻辑门的第n-1级的输出信号波形及其发生概率。 因此,计算与集成电路内部各级的各布线上的信号有关的各种基本波形,发生概率和信号相关的类型,并且在预定时间段内发生。

    Helicopter having collision avoidance apparatus
    3.
    发明授权
    Helicopter having collision avoidance apparatus 失效
    具有防撞装置的直升机

    公开(公告)号:US08473189B2

    公开(公告)日:2013-06-25

    申请号:US13121502

    申请日:2009-08-31

    申请人: Kessler Christoph

    发明人: Kessler Christoph

    IPC分类号: F41G9/00 G06G17/10 G06G7/78

    摘要: The invention relates to a helicopter, comprising a tail jib (12), at least one distance sensor (16.1) attached to the tail jib (12) for capturing a distance (A) from an object (18) that may be present in a surrounding area of the tail jib (12), and an electric evaluation unit (20), which is connected to the distance sensors (16) and equipped to calculate a position of the object (18) relative to the helicopter (10). According to the invention, a collision avoidance apparatus is provided, which is designed to avoid a collision of a person with the tail jib (12).

    摘要翻译: 本发明涉及一种直升机,包括一个尾悬臂(12),至少一个距离传感器(16.1),该距离传感器(16.1)附接到该尾部悬臂(12),用于捕捉与该物体(18)的距离(A) (12)的周围区域和电气评估单元(20),其连接到所述距离传感器(16)并被配备为计算所述物体(18)相对于所述直升机(10)的位置。 根据本发明,提供了一种防撞装置,其被设计成避免人与尾吊架(12)的碰撞。

    Method and apparatus for estimating values for condition indicators
    4.
    发明授权
    Method and apparatus for estimating values for condition indicators 有权
    用于估计条件指标值的方法和装置

    公开(公告)号:US07136794B1

    公开(公告)日:2006-11-14

    申请号:US10011428

    申请日:2001-12-04

    IPC分类号: G06G7/48 G06G17/10

    摘要: Disclosed are techniques used in connection with determining a health indicator (HI) of a component, such as that of an aircraft component. The HI is determined using condition indicators (CIs) which parameterize characteristics about a component minimizing possibility of a false alarm. Different algorithms are disclosed which may be used in determining one or more CIs. The HI may be determined using a normalized CI value. Techniques are also described in connection with selecting particular CIs that provide for maximizing separation between HI classifications. Given a particular HI at a point in time for a component, techniques are described for predicting a future state or health of the component using the Kalmán filter. Techniques are described for estimating data values as an alternative to performing data acquisitions, as may be used when there is no pre-existing data.

    摘要翻译: 公开了与确定诸如飞行器部件的部件的健康指示器(HI)有关的技术。 使用条件指示符(CI)来确定HI,该条件指示符(CI)参数化关于使误报的可能性最小化的部件的特性。 公开了可用于确定一个或多个CI的不同算法。 可以使用归一化的CI值来确定HI。 还结合选择提供了HI分类之间的最大化分离的特定CI来描述技术。 给定组件的某个时间点的特定HI,描述了使用Kalmán滤波器来预测组件的未来状态或健康状况的技术。 描述了用于估计数据值作为执行数据采集的替代方法的技术,可以在没有预先存在的数据时使用。