利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

113 条记录 (耗时 0.013 秒)

    INTRUDER DETECTOR SYSTEM
    81.
    发明公开
    INTRUDER DETECTOR SYSTEM 失效
    入侵检测系统

    公开(公告)号：EP0995179A4

    公开(公告)日：2002-02-06

    申请号：EP98935573

    申请日：1998-07-13

    申请人： LASER GUARD LTD

    发明人： FRUCHT YAACOV

    IPC分类号： G08B13/181 ,  G01S15/04 ,  G01S17/02 ,  G01V8/12 ,  G08B13/196 ,  G08B15/00

    CPC分类号： G08B13/19695 ,  G01S17/023 ,  G01S17/026 ,  G08B13/19608 ,  G08B13/1963

    摘要： A light beam, preferably from a laser (68), is reflected from a target, which is a potential intruder. The time period for the beam to return to a light detector and the intensity of the reflected light is recorded (72). A computer analyses the measurements of distance and intensity. Intruders are detected based on changes in these measurements from those made during a 'learning' period. Targets are tracked using data collected in consecutive searches of the protected area. An alarm is sounded and/or a video camera is actuated. An acoustic sensor system (53) may be included, which is able to detect intruders with sound. A sensor fusion unit (74) can determine whether propagation conditions are adequate for the operation of the laser system (70), or alternatively whether the acoustic sensor system (52) should be used instead.

    Laser image projection with infrared obstacle detection
    82.
    发明公开
    Laser image projection with infrared obstacle detection 有权
    Laser-Bildprojektion mit Infrarotdetektion von Hindernissen

    公开(公告)号：EP1117080A2

    公开(公告)日：2001-07-18

    申请号：EP00128419.9

    申请日：2000-12-28

    申请人： SONY CORPORATION

    发明人： Tsurushima, Katsuaki

    IPC分类号： G08B13/181 ,  H04N9/31

    CPC分类号： G03B21/14 ,  G03B17/54 ,  G03B21/2086 ,  H04N9/3129 ,  H04N9/3194

    摘要： An image projection method and an image projector are adapted to shut down the laser beams instantaneously when an obstacle intruding into the projection area of the laser beams is detected. A detection wave is projected onto a display screen 3 along with laser beams for displaying an image and detect the reflection wave of the detection wave reflected from the display screen 3 to find out the obstacle, if any, intruding into the projection area of the laser beams. The laser beams are shut down when the intrusion of the obstacle is detected.

    摘要翻译： 当检测到入射到激光束的投影区域中的障碍物时，图像投影方法和图像投影仪适于瞬间关闭激光束。 检测波与用于显示图像的激光束一起投影到显示屏3上，并检测从显示屏3反射的检测波的反射波，以发现入射到激光器的投影区域中的障碍物（如果有的话） 梁。 当检测到障碍物的入侵时，激光束被关闭。

    LASER SCANNING SENSOR
    84.
    发明公开
    LASER SCANNING SENSOR 审中-公开

    公开(公告)号：EP4451242A1

    公开(公告)日：2024-10-23

    申请号：EP22918646.5

    申请日：2022-01-07

    申请人： Optex Co., Ltd.

    发明人： FUJIWARA Kunio

    IPC分类号： G08B13/181

    摘要： A laser scanning sensor (100) includes a laser range finder (110), a scanning mechanism (120), a distance data acquisition unit (130), memory (160), an object detection processing unit (135), an object detection area determination unit (140), an object detection area alarm activation control unit (145), and an alarm activation output control unit (150). The object detection area determination unit (140) determines, based on a determination result by the object detection processing unit (135), whether any detection target object (15) is present in a caution area (B100) and a determination area (C100). The object detection area alarm activation control unit (145) controls, based on the determination result by the object detection processing unit (135) and a determination result by the object detection area determination unit (140), whether to activate an alarm when the detection target object (15) is present in the caution area (B100).

    ANTI-CLIMB SYSTEM
    87.
    发明公开
    ANTI-CLIMB SYSTEM 审中-公开

    公开(公告)号：EP4145413A1

    公开(公告)日：2023-03-08

    申请号：EP22192284.2

    申请日：2022-08-26

    申请人： Integrated Design Limited

    发明人： Huff, Derek

    IPC分类号： G07C9/10 ,  G08B13/181

    摘要： A detection apparatus comprising a body having a longitudinal direction; a Ranging Time-of-Flight (RTOF) sensor positioned to direct a beam generally along at least part of the body of the upper part of the body and angled upwards, and a processor arranged to register objects or persons crossing the beam at greater than a minimum distance from the sensor to detect climbing on the object.

    WIRELESS SLIDE FENCE SYSTEM AND METHOD
    89.
    发明公开
    WIRELESS SLIDE FENCE SYSTEM AND METHOD 审中-公开

    公开(公告)号：EP3939856A3

    公开(公告)日：2022-04-20

    申请号：EP21185523.4

    申请日：2021-07-14

    申请人： BNSF Railway Company

    发明人： Wayne Beard, Mitchell ,  Chiyang Shih, Paul ,  Weidle, Paul Aaron ,  Specht, Jerry Wade ,  Shue, Kent Robert

    IPC分类号： B61L23/04 ,  B61L1/18 ,  G08B21/02 ,  G08B29/18 ,  G01S15/931 ,  G08B13/16 ,  G08B13/181

    摘要： A Wireless Slide Fence utilizing signal reflection technology to detect rockslides and can determine the size and location of fallen rocks/objects impeding travel along a train track is presented. The present disclosure solves the technological problem of determining rock size and location to validate rockslide/fall alarms to reduce false alarms, while minimizing repairs required by conventional systems through the use of obstacle detection units and vital logic controllers. The present disclosure improves the performance of the system by, generating validated alarms when fallen rocks/objects satisfy the size criteria and are located in an area hazardous to train operations. In one exemplary embodiment, a loitering time can be implemented to validate object detections to reduce false positives due to transient objects such as migrating animals.