Method and apparatus for automatically testing a railroad interlocking
    4.
    发明授权
    Method and apparatus for automatically testing a railroad interlocking 失效
    自动测试铁路联锁的方法和装置

    公开(公告)号:US07363187B2

    公开(公告)日:2008-04-22

    申请号:US11172461

    申请日:2005-06-30

    IPC分类号: G06F19/00

    CPC分类号: B61L21/04 B61L27/0055

    摘要: A railroad signal system interlocking is automatically tested. A control point interface corresponding to a predetermined function of the interlocking has an isolated section and a control section. The isolated section is connected with the interlocking and has a normal, inactivated state during operation of the interlocking, and an activated state for testing the interlocking by detecting an electrical characteristic representing the status of the predetermined function executed by the interlocking. The control section drives the isolated section to its activated state and receiving an output from the isolated section in response to the detected electrical characteristic, and delivers a status report.

    摘要翻译: 铁路信号系统互锁自动测试。 对应于互锁的预定功能的控制点接口具有隔离部分和控制部分。 隔离部分与互锁连接,并且在联锁操作期间具有正常的非钝化状态,以及通过检测表示由互锁执行的预定功能的状态的电特性来测试互锁的激活状态。 控制部分将隔离部分驱动到其激活状态,并响应于检测到的电气特性接收来自隔离部分的输出,并传送状态报告。

    Method and apparatus for automatically testing a railroad interlocking
    5.
    发明授权
    Method and apparatus for automatically testing a railroad interlocking 失效
    自动测试铁路联锁的方法和装置

    公开(公告)号:US07711511B2

    公开(公告)日:2010-05-04

    申请号:US12072995

    申请日:2008-02-29

    IPC分类号: G06F19/00

    CPC分类号: B61L27/0055 B61L19/06

    摘要: A railroad signal system interlocking is automatically tested. A control point interface corresponding to a predetermined function of the interlocking has an isolated section and a control section. The isolated section is connected with the interlocking and has a normal, inactivated state during operation of the interlocking, and an activated state for testing the interlocking by detecting an electrical characteristic representing the status of the predetermined function executed by the interlocking. The control section drives the isolated section to its activated state and receiving an output from the isolated section in response to the detected electrical characteristic, and delivers a status report.

    摘要翻译: 铁路信号系统互锁自动测试。 对应于互锁的预定功能的控制点接口具有隔离部分和控制部分。 隔离部分与互锁连接,并且在联锁操作期间具有正常的非钝化状态,以及通过检测表示由互锁执行的预定功能的状态的电特性来测试互锁的激活状态。 控制部分将隔离部分驱动到其激活状态,并响应于检测到的电气特性接收来自隔离部分的输出,并传送状态报告。

    Testing interface for railroad signal relays
    6.
    发明授权
    Testing interface for railroad signal relays 失效
    铁路信号继电器测试接口

    公开(公告)号:US06963202B2

    公开(公告)日:2005-11-08

    申请号:US10209008

    申请日:2002-07-31

    IPC分类号: G01R31/327

    CPC分类号: G01R31/3278

    摘要: A testing interface provides rapid, temporary connections to individual signal relays used in railroad signal systems when testing is required, and otherwise permits normal operation of railroad signal vital circuits through its connections. A connectivity block provides contacts that are used to isolate the relay from its application circuit and provide connectivity to the relay coils for testing when a connection paddle is inserted into the block. The interface allows fully automated or manual testing of installed relays without requiring removal from the relay rack.

    摘要翻译: 当需要测试时,测试接口可提供与铁路信号系统中使用的单个信号继电器的快速临时连接,否则允许铁路信号重要电路通过其连接正常运行。 连接块提供用于将继电器与其应用电路隔离并提供与继电器线圈的连接的接点,用于当将连接桨插入块时进行测试。 该接口允许对已安装的继电器进行全自动或手动测试,而无需从继电器架上拆下。

    Gunshot detector
    8.
    发明授权
    Gunshot detector 失效
    枪声探测器

    公开(公告)号:US5455868A

    公开(公告)日:1995-10-03

    申请号:US196040

    申请日:1994-02-14

    IPC分类号: G08B13/16 H04R29/00

    摘要: An amplitude responsive detection system analyzes the amplitude characteristic of a received noise and determines whether that characteristic conforms to the predictable audio signature of a gunshot. If a received noise reaches a predetermined amplitude level within a rise time that may be indicative of a gunshot, subsequent amplitude criteria are established representing the decay of the amplitude profile that is expected if the noise is a gunshot. The amplitude criteria are controlled as to both level and occurrence in time to provide a dynamic range that will accommodate near and far gunshots.

    摘要翻译: 振幅响应检测系统分析接收到的噪声的振幅特性,并确定该特性是否符合枪支的可预测的音频签名。 如果接收到的噪声在可以指示枪声的上升时间内达到预定的幅度电平,则建立后续幅度标准,表示如果噪声是枪声,预期的幅度曲线的衰减。 幅度标准被控制在时间上的水平和发生,以提供将容纳近和远的枪声的动态范围。

    Target position radar
    9.
    发明授权
    Target position radar 失效
    目标位置雷达

    公开(公告)号:US4743908A

    公开(公告)日:1988-05-10

    申请号:US794787

    申请日:1985-11-04

    IPC分类号: G01S13/52 G01S13/58 G01S9/02

    CPC分类号: G01S13/583 G01S13/52

    摘要: A traffic radar unit capable of looking past the lead vehicle of oncoming traffic and discovering and identifying a violator employs master and slave antennas having diverging boresights that provide overlapping relative power density radiation patterns. The radar return signal from a target of interest is received by each antenna to produce two independent Doppler signals of the same frequency which are processed by respective master and slave signal processing channels. In the illustrated embodiment, a reference boresight is established in the overlapped patterns such that a target position along the reference boresight occurs at the time that the amplitudes of the two Doppler signals are equal. Controllable high pass filters whose passbands are shifted upwardly in response to return signals of increasing amplitude attenuate stronger, lower frequency interfering signals. The presence of a second Doppler signal in either channel having a frequency near the signal of interest causes the receiver to abort the tracking mode.

    摘要翻译: 能够观察迎面而来的交通事故的发现和识别违规者的交通雷达单元采用具有提供重叠的相对功率密度辐射模式的分支视轴的主从天线。 来自感兴趣的目标的雷达返回信号由每个天线接收以产生由相应的主信号处理和从属信号处理信道处理的相同频率的两个独立的多普勒信号。 在所示实施例中,在重叠图案中建立参考视轴,使得在两个多普勒信号的幅度相等时沿着参考视轴的目标位置发生。 通过响应增加振幅的返回信号,其通带向上移位的可控高通滤波器衰减更强的较低频干扰信号。 在具有接近感兴趣信号的频率的任一信道中存在第二多普勒信号导致接收机中止跟踪模式。