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    Vehicle detector with operational display
    1.
    发明授权
    Vehicle detector with operational display 失效
    车载探测器，具有操作显示

    公开(公告)号：US6087964A

    公开(公告)日：2000-07-11

    申请号：US847777

    申请日：1997-04-24

    申请人： Robert S. Allen ,  Thomas R. Potter, Sr. ,  Thomas W. Seabury

    发明人： Robert S. Allen ,  Thomas R. Potter, Sr. ,  Thomas W. Seabury

    IPC分类号： G08G1/042 ,  G08G1/01

    CPC分类号： G08G1/042

    摘要： A programmable vehicle detector with operator actuatable function selection and parameter value setting keys, and an operational display. A small cluster (four) of key switches enables an operator to select programmable vehicle detector functions, such as pulse/presence, scanning/non-scanning, end of green control; and also adjust the value of settable parameters, such as loop frequency, sensitivity, delay time, and maximum presence time. The value of certain parameters is displayed, either by manual interrogation by operation of the switches during a set mode or automatically during normal operation. During normal operation, the display also indicates dynamically the relative value of the loop inductance, using a unique bar graph, the generation of Call a signal, and the time remaining in a delay time period and a maximum presence time period. The display further indicates which of several channels has been selected for function and parameter programming, or is currently being monitored for operation. The vehicle detector can be operated as both a scanning multi-channel detector or a non-scanning multi-channel detector.

    摘要翻译： 具有操作员可启动功能选择和参数值设定键的可编程车辆检测器，以及操作显示。 一个小型集群（四个）的钥匙开关使操作员可以选择可编程的车辆检测器功能，如脉冲/存在，扫描/非扫描，绿色控制结束; 并调整可设定参数的值，如循环频率，灵敏度，延迟时间和最大存在时间。 通过在设定模式期间通过操作开关进行手动询问或在正常操作期间自动显示某些参数的值。 在正常操作期间，显示器还使用唯一的条形图动态地指示环路电感的相对值，产生呼叫信号，以及在延迟时间段和最大存在时间段内剩余的时间。 显示进一步指示为功能和参数编程选择了几个通道中的哪一个，或正在监视操作。 车辆检测器可以作为扫描多通道检测器或非扫描多通道检测器来操作。

    Vehicle detector method for multiple vehicle counting
    3.
    发明授权
    Vehicle detector method for multiple vehicle counting 失效
    用于多车辆计数的车辆检测器方法

    公开(公告)号：US5247297A

    公开(公告)日：1993-09-21

    申请号：US811767

    申请日：1991-12-20

    申请人： Thomas W. Seabury ,  Robert S. Allen

    发明人： Thomas W. Seabury ,  Robert S. Allen

    IPC分类号： G08G1/01 ,  G08G1/042

    CPC分类号： G08G1/0104 ,  G08G1/042

    摘要： An estimate of the number of vehicles crossing a loop inductor having one or more interconnected discrete loops of the type found in vehicle detector system installations. A measuring signal follows changes in loop inductance caused by the influence of vehicles crossing the loop inductor. A vehicle count threshold value is computed by observing changes in the measuring signal caused by the first car crossing the loop. Subsequent excursions of the measuring signal between relative minima and relative maxima are tested against the threshold and a vehicle count event is registered when the differences exceed the threshold. After a predetermined count period, the number of vehicle counts is estimated from the total count events by multiplying them by an interpolation factor determined empirically from the type of loop inductor. Apparatus for perfoming the method is combined with a conventional vehicle detector system in a switch selectable apparatus for specifying vehicle detector mode or vehicle count mode. The system furhter includes a user selectable circuit for matching the interpolation factor to the type of loop inductor used with the system.

    摘要翻译： 对车辆检测器系统安装中发现的类型的一个或多个互连离散环路的环路电感器的车辆数量的估计。 测量信号随着车辆穿过环路电感器的影响而产生的环路电感变化。 通过观察由第一轿厢穿过环路引起的测量信号的变化来计算车辆计数阈值。 根据阈值测试相对最小值和相对最大值之间的测量信号的后续漂移，并且当差异超过阈值时登记车辆计数事件。 在预定计数周期之后，通过将它们乘以根据环路电感器的类型凭经验确定的内插因子，从总计数事件估计车辆计数的数量。 用于完成该方法的装置与用于指定车辆检测器模式或车辆计数模式的开关可选装置中的常规车辆检测器系统组合。 系统包括用户可选择的电路，用于将内插因子与系统所使用的环路电感器的类型相匹配。

    Vehicle communication system using existing roadway loops
    5.
    发明授权
    Vehicle communication system using existing roadway loops 失效
    使用现有道路回路的车辆通信系统

    公开(公告)号：US5089815A

    公开(公告)日：1992-02-18

    申请号：US462890

    申请日：1989-12-28

    申请人： Thomas Potter ,  Thomas W. Seabury

    发明人： Thomas Potter ,  Thomas W. Seabury

    IPC分类号： G08G1/042 ,  G08G1/0967

    CPC分类号： G08G1/096716 ,  G08G1/042 ,  G08G1/096758 ,  G08G1/096783

    摘要： A method and system for transferring information between a moving vehicle and a stationary information location having a vehicle detector system with a loop antenna by using the loop antenna as either the receiving antenna for signals transmitted from a moving vehicle or as the transmitting antenna for signals generated by a transmitter located at the vehicle detector site for transfer to a receiver mounted on a moving vehicle. The information is encoded on a carrier having a frequency outside the normal frequency range of the vehicle detector system, preferably by interrupted carrier pattern processing.

    摘要翻译： 一种用于通过使用环形天线作为用于从移动车辆发送的信号的接收天线或作为生成的信号的发送天线在具有具有环形天线的车辆检测器系统的移动车辆和固定信息位置之间传送信息的方法和系统 通过位于车辆检测器位置的发射器传送到安装在移动车辆上的接收器。 信息被编码在具有在车辆检测器系统的正常频率范围之外的频率的载波上，优选地通过中断的载波模式处理来编码。

    Vehicle communication system using existing roadway loops wherein the physical integrity of the loop is kept intact
    7.
    发明授权
    Vehicle communication system using existing roadway loops wherein the physical integrity of the loop is kept intact 失效
    使用现有道路回路的车辆通信系统，其中环路的物理完整性保持不变

    公开(公告)号：US5198811A

    公开(公告)日：1993-03-30

    申请号：US691199

    申请日：1991-05-16

    申请人： Thomas Potter ,  Thomas W. Seabury

    发明人： Thomas Potter ,  Thomas W. Seabury

    IPC分类号： G08G1/042 ,  G08G1/0967

    CPC分类号： G08G1/096716 ,  G08G1/042 ,  G08G1/096758 ,  G08G1/096783

    摘要： A method and system for transferring information between a moving vehicle and a stationary information location having a vehicle detector system with a loop antenna by using the loop antenna as either the receiving antenna for signals transmitted from a moving vehicle or as the transmitting antenna for signals generated by a transmitter located at the vehicle detector site for transfer to a receiver mounted on a moving vehicle. The information is encoded on a carrier having a frequency outside the normal frequency range of the vehicle detector system, preferably by interrupted carrier pattern processing.

    摘要翻译： 一种用于通过使用环形天线作为用于从移动车辆发送的信号的接收天线或作为生成的信号的发送天线在具有具有环形天线的车辆检测器系统的移动车辆和固定信息位置之间传送信息的方法和系统 通过位于车辆检测器位置的发射器传送到安装在移动车辆上的接收器。 信息被编码在具有在车辆检测器系统的正常频率范围之外的频率的载波上，优选地通过中断的载波模式处理来编码。