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    DOOR POSITION DETERMINATION USING AN INFRARED REFLECTIVITY SENSOR
    75.
    发明公开
    DOOR POSITION DETERMINATION USING AN INFRARED REFLECTIVITY SENSOR 审中-公开
    使用红外反射率传感器确定门位置

    公开(公告)号：EP2047441A1

    公开(公告)日：2009-04-15

    申请号：EP07763847.6

    申请日：2007-07-04

    申请人： Tyco Safety Products Canada Ltd.

    发明人： SHARMA, Raman Kumar

    IPC分类号： G08B13/181 ,  G08B29/18

    CPC分类号： G08B13/08 ,  G08B25/10 ,  G08B25/14

    摘要： The IR sensor is configured to be mounted proximate to a door to be monitored. The IR sensor has an IR transmitter and an IR receiver. The IR transmitter has an active period and an idle period. The IR transmitter transmits control data packets which are provided by the processor during the active period. The IR receiver has an active period for detecting IR data and reflected data packets. Each of the reflected data packets has a packet IR reflectivity. The memory stores a door IR reflectivity associated with a door surface of the door, and the processor compares the packet IR reflectivity to the door IR reflectivity to determine at least a door position of the door.

    摘要翻译： IR传感器被配置为安装在要被监视的门附近。 红外传感器有一个红外发射器和一个红外接收器。 红外发射器有一个有效期和一个空闲期。 IR发射器发送在激活时段期间由处理器提供的控制数据分组。 IR接收器具有用于检测IR数据和反射数据分组的活动时段。 每个反射数据分组具有分组IR反射率。 存储器存储与门的门表面相关联的门IR反射率，并且处理器将封包IR反射率与门IR反射率进行比较以确定门的至少门位置。

    DETECTION SYSTEM WITH IMPROVED NOISE TOLERANCE
    77.
    发明授权
    DETECTION SYSTEM WITH IMPROVED NOISE TOLERANCE 失效
    具有增强的噪声容限检测系统

    公开(公告)号：EP0938722B1

    公开(公告)日：2006-01-11

    申请号：EP97946652.1

    申请日：1997-11-13

    申请人： Auto-Sense, Ltd

    发明人： JUDS, Scott

    IPC分类号： G01S13/93 ,  G08G1/16 ,  G01S7/483 ,  G08B13/181 ,  G01S7/497

    CPC分类号： G01S17/936 ,  B60Q9/008 ,  G01S7/4873 ,  G01S17/87 ,  G01S2007/4975

    摘要： An electro-optical detection system for detecting objects within the boundaries of a monitored zone, comprises a plurality of LED emitter and photodetector pairs. Each emitter (12) emits a beam of pulses of light energy into the monitored zone, and its paired photodetector (14) detects light energy including light energy from the beam that is reflected from an object within the monitored zone and generates light detection signals. A controller (10) operates the emitter and photodetector pairs and evaluates the light detection signals to discriminate between light energy of beams reflected from an object within the monitored zone and other light energy. The controller can selectively adjust the evaluation of the light detection signals to adjust the effective boundaries of the monitored zone.

    DETECTION SYSTEM WITH IMPROVED NOISE TOLERANCE
    78.
    发明公开
    DETECTION SYSTEM WITH IMPROVED NOISE TOLERANCE 失效
    DETEKTIONSSYSTEM MITERHÖHTERRAUSCHTOLERANZ

    公开(公告)号：EP0938722A4

    公开(公告)日：2004-05-06

    申请号：EP97946652

    申请日：1997-11-13

    申请人： AUTO SENSE LTD

    发明人： JUDS SCOTT

    IPC分类号： G08G1/16 ,  B60Q1/52 ,  G01S7/32 ,  G01S7/487 ,  G01S13/93 ,  G01S17/00 ,  G01S17/87 ,  G01S17/93 ,  G01S7/483 ,  G01S7/497 ,  G08B13/181

    CPC分类号： G01S17/936 ,  B60Q9/008 ,  G01S7/4873 ,  G01S17/87 ,  G01S2007/4975

    摘要： An electro-optical detection system for detecting objects within the boundaries of a monitored zone, comprises a plurality of LED emitter and photodetector pairs. Each emitter (12) emits a beam of pulses of light energy into the monitored zone, and its paired photodetector (14) detects light energy including light energy from the beam that is reflected from an object within the monitored zone and generates light detection signals. A controller (10) operates the emitter and photodetector pairs and evaluates the light detection signals to discriminate between light energy of beams reflected from an object within the monitored zone and other light energy. The controller can selectively adjust the evaluation of the light detection signals to adjust the effective boundaries of the monitored zone.

    摘要翻译： 一种用于检测被监测区域边界内的物体的电光检测系统，包括多个LED发射器和光电探测器对。 每个发射器（12）将光能脉冲发射到被监视的区域中，并且其成对的光电探测器（14）检测包括来自被监视区域内的物体反射的光束的光能的光能并产生光检测信号。 控制器（10）操作发射器和光电检测器对并评估光检测信号以区分从被监测区域内的物体反射的光束和其他光能。 控制器可以选择性地调整光检测信号的评估，以调整被监视区域的有效边界。

    ELECTRONIC ARTICLE SURVEILLANCE TRANSMITTER CONTROL USING TARGET RANGE
    79.
    发明授权
    ELECTRONIC ARTICLE SURVEILLANCE TRANSMITTER CONTROL USING TARGET RANGE 有权
    电子物品监视发射机控制使用目标范围

    公开(公告)号：EP1216464B1

    公开(公告)日：2003-10-22

    申请号：EP00955825.5

    申请日：2000-08-22

    申请人： Sensormatic Electronics Corporation

    发明人： ZAMPINI, Michael, A. ,  TAYLOR, John, W.

    IPC分类号： G08B13/24 ,  G08B13/16 ,  G08B13/181

    CPC分类号： G08B13/248 ,  G08B13/1645 ,  G08B13/181 ,  G08B13/2462 ,  G08B13/2482

    摘要： An electronic article surveillance system responsive to the distance to a target within an interrogation zone is provided. The interrogation zone is defined by an electromagnetic field generated with a known level and transmitted by at least one antenna. A target within the interrogation zone can be any object, such as a person or shopping cart, within the interrogation zone. The target may include an EAS marker securable to an article for passage through the interrogation zone. The EAS marker is detectable at a frequency when in the electromagnetic field, and is detected by EAS detection equipment, as known in the art. The target within the interrogation zone is detected, and the distance from the antenna to the target is measured. The level of the electromagnetic field is controlled according to the distance to the target within the interrogation zone. The output level is adjusted according to the distance to the target. The EAS system can include multiple antennas each producing an electromagnetic field that in combination define the interrogation zone. A ranging transducer is mounted near each antenna, or at opposing ends of the interrogation zone to measure the distance to a target within the interrogation zone. The output level of each electromagnetic field transmitted by each antenna can be individually controlled according to the distance from that antenna to the target. Multiple targets can be detected, and the power level of each electromagnetic field is adjusted accordingly. The electromagnetic field can be switched off and on by detection of the target in the interrogation zone. The direction of motion of the target can also be detected and used as a factor in alarm activation decisions.

    摘要翻译： 提供了一种电子物品监视系统，其响应询问区域内到目标的距离。 询问区由用已知电平产生并由至少一个天线发射的电磁场定义。 询问区内的目标可以是询问区内的任何物体，例如人或购物车。 目标可以包括可固定到物品以通过询问区的EAS标记。 如在本领域中已知的，EAS标记在处于电磁场中时的频率处可被检测到，并且被EAS检测设备检测到。 检测询问区内的目标，并测量从天线到目标的距离。 根据询问区域内到目标的距离来控制电磁场的电平。 输出水平根据到目标的距离进行调整。 EAS系统可以包括多个天线，每个天线产生组合定义询问区的电磁场。 测距传感器安装在每个天线附近或者在询问区的相对端，以测量询问区内到目标的距离。 每个天线发射的每个电磁场的输出电平可以根据从该天线到目标的距离单独控制。 可以检测多个目标，并且相应地调整每个电磁场的功率水平。 通过在询问区域中检测目标可以关闭和打开电磁场。 目标的运动方向也可以被检测并用作警报激活决定中的因素。