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    Wheel sensor assembly for rail base mounting
    32.
    发明申请
    Wheel sensor assembly for rail base mounting 有权

    公开(公告)号：US20070204705A1

    公开(公告)日：2007-09-06

    申请号：US11744567

    申请日：2007-05-04

    Applicant: Sudhir Kumar ,  Venkat Dyavanapalli

    Inventor： Sudhir Kumar ,  Venkat Dyavanapalli

    IPC: G01D21/00

    CPC classification number: H03M7/30 ,  B61L1/08

    Abstract: A rail-mounted, wheel-sensing system is shown having a wheel sensor and a rail mounting platform. The system includes a rugged steel rail clamp including two blocks mounted on the base of the rail by a pair of bolt extending under the rail. One block is connected to a vertically adjustable mounting bracket for carrying a sensor or other device. The mounting bracket includes a platform for the sensor. Two shields on the platform protecting a sensor mounted between them. An adapter plate may be added between the mounting bracket and the clamp for installation on lighter or heavier rails.

    Systems and methods for decoding compressed data
    33.
    发明授权
    Systems and methods for decoding compressed data 有权
    压缩数据解码的系统和方法

    公开(公告)号：US06903669B1

    公开(公告)日：2005-06-07

    申请号：US10679099

    申请日：2003-10-03

    Applicant: Girish Subramaniam

    Inventor： Girish Subramaniam

    IPC: H03M7/00 ,  H03M7/30

    CPC classification number: H03M7/30 ,  B61L1/08

    Abstract: A method of decoding an encoded bitstream. The method includes performing a table lookup. Addresses into the table are generated using selected numbers of bits drawn from the bitstream in response to values stored in the table entries. A table entry may contain an index offset and a number of bits to extract from the bitstream. Alternatively, the table entry may contain the decode result. The value of a result tag in the entry signals which of the alternatives is contained in the entry. The table is recursively accessed until a portion of the bitstream is decoded. Any remaining portion of the bitstream is decoded similarly. An initial index into the table is determined from a number of bits of the bitstream corresponding to the length of the smallest code word in the codetable used to encode the bitstream.

    Abstract translation: 一种对编码比特流进行解码的方法。 该方法包括执行表查找。 响应于存储在表条目中的值，使用从比特流中提取的所选位数来生成表中的地址。 表条目可以包含从比特流提取的索引偏移量和比特数。 或者，表条目可以包含解码结果。 条目中的结果标签的值表示条目中包含哪些替代方案。 该表被递归地访问，直到比特流的一部分被解码。 比特流的任何剩余部分被类似地解码。 从对应于用于编码比特流的可编码字节中的最小码字的长度的比特流的比特数确定到表中的初始索引。

    Low speed wheel presence transducer for railroads with self calibration
    34.
    发明授权
    Low speed wheel presence transducer for railroads with self calibration 失效
    具有自校准功能的铁路低速轮存在传感器

    公开(公告)号：US5395078A

    公开(公告)日：1995-03-07

    申请号：US114755

    申请日：1993-09-01

    Applicant: Edward P. Gellender

    Inventor： Edward P. Gellender

    IPC: B61L1/08 ,  B61L1/16

    CPC classification number: B61L1/165 ,  B61L1/08 ,  B61L1/167 ,  B61L1/169

    Abstract: A railroad car wheel transducer includes a coil positioned along a rail of a track. The presence of a wheel proximal to the coil causes basic electrical characteristics of the coil, such as its inductance and Q factor to change, which is sensed and used to generate a coil signal. A calibrating circuit monitors the coil characteristics to compensate for long term drifts.

    Abstract translation: 铁路车轮传感器包括沿着轨道的轨道定位的线圈。 靠近线圈的车轮的存在引起线圈的基本电气特性，例如其电感和Q因子改变，其被感测并用于产生线圈信号。 校准电路监测线圈特性以补偿长期漂移。

    Magnetic object detection
    35.
    发明授权
    Magnetic object detection 失效
    磁性物体检测

    公开(公告)号：US3964703A

    公开(公告)日：1976-06-22

    申请号：US559252

    申请日：1975-03-17

    Applicant: Joseph R. Wilkas ,  Christos B. Kapsambelis ,  Richard H. Tuhro ,  Christopher C. Reynolds

    Inventor： Joseph R. Wilkas ,  Christos B. Kapsambelis ,  Richard H. Tuhro ,  Christopher C. Reynolds

    IPC: B61L1/08 ,  B61L1/10 ,  B61L1/16

    CPC classification number: B61L1/165 ,  B61L1/08 ,  B61L1/10

    Abstract: A variable permeability magnetic object detection device including an electromagnetic sensing coil; a core disposed in the electromagnetic sensing coil having a first permeability when the core is magnetically saturated and a second different permeability when the core is magnetically unsaturated; a magnetic member proximate the electromagnetic sensing coil for providing a magnetic field in the core for operating the core in a magnetically saturated state without a magnetic object to be detected present in the area proximate the electromagnetic sensing coil, interacting with the magnetic field, and for operating the core in a magnetically unsaturated state with the magnetic object to be detected present in the area proximate the magnetic sensing coil, interacting with the field; and a detector responsive to said electromagnetic sensing coil to detect the presence of a magnetic object.

    Abstract translation: 一种可变磁导率磁性物体检测装置，包括电磁感测线圈; 设置在所述电磁感测线圈中的铁心当所述铁心磁饱和时具有第一磁导率，当所述铁芯磁不饱和时设置第二磁导率; 靠近电磁感测线圈的磁性构件，用于在磁芯中提供磁场，用于在磁饱和状态下操作磁芯，而不需要检测到的磁性物体存在于与电磁感应线圈相邻的区域中，并与 在磁性不饱和状态下操作核心，使待检测的磁性物体存在于靠近磁感测线圈的区域中，与磁场相互作用; 以及响应于所述电磁感测线圈以检测磁性物体的存在的检测器。

    ZUGPOSITIONSERFASSUNGSSYSTEM
    36.
    发明申请
    ZUGPOSITIONSERFASSUNGSSYSTEM 审中-公开

    公开(公告)号：WO2009016024A1

    公开(公告)日：2009-02-05

    申请号：PCT/EP2008/059188

    申请日：2008-07-14

    Applicant: SIEMENS AKTIENGESELLSCHAFT ,  SIEGMUND, Wolfgang

    Inventor： SIEGMUND, Wolfgang

    IPC: B61L1/08 ,  B61L1/16 ,  B61L25/02

    CPC classification number: B61L1/08 ,  B61L1/165

    Abstract: Die Erfindung betrifft ein Zugpositionserfassungssystem, das sich durch universelle Anwendbarkeit bei geringen Kosten auszeichnet. Erfindungsgemäß ist vorgesehen, dass gleisseitig Magnetfeldsensoren (5, 5.1, 5.2, 5.3, 5.4) zur Erfassung einer temporär lokalen Magnetfeldänderung des natürlichen Erdmagnetfeldes infolge einer Zugpassage angeordnet sind.

    Abstract translation: 本发明涉及一种Zugpositionserfassungssystem，其以低成本的特征在于普遍适用性。 根据它提供了本发明的是轨道旁的磁场传感器（5，5.1，5.2，5.3，5.4）被设置用于检测因自然Zugpassage地球磁场的暂时局部磁场变化。

    VEHICLE PRESENCE DETECTION SYSTEM
    37.
    发明申请
    VEHICLE PRESENCE DETECTION SYSTEM 审中-公开
    车辆存在检测系统

    公开(公告)号：WO98058829A1

    公开(公告)日：1998-12-30

    申请号：PCT/IB1998/000978

    申请日：1998-06-24

    IPC: B61L1/08 ,  B61L29/28 ,  B61L3/00

    CPC classification number: B61L29/284 ,  B61L1/08

    Abstract: A passive magnetic detector (10) is provided at or below ground level in between rails of a railroad track at a distance from a level crossing (103) for detecting magnetic field disturbances caused by ferromagnetic objects passing overhead on the track. Magnetic field reversals are detected in the passive detector signal. The reversal signal is analyzed and a train presence output signal is generated for controlling the level crossing gate system. At the crossing, static magnetic field detectors (12) are used to ensure that no equipment remains on the island after detecting that the moving train has left the crossing (103).

    Abstract translation: 无源磁检测器（10）设置在与铁路轨道的轨道之间或之下的地平面处，距离水平交叉点（103）的距离处，用于检测由在轨道上通过顶部的铁磁物体引起的磁场扰动。 在无源检测器信号中检测到磁场反转。 分析反转信号，产生列车存在输出信号，以控制电平交叉门系统。 在交叉点处，静电磁场检测器（12）用于确保在检测到移动列车已经离开交叉点（103）之后，岛上没有设备保留。

    METHOD FOR MONITORING THE MOUNTED POSITION OF WHEEL SENSORS FOR RAILWAY FACILITIES, AND DEVICE FOR IMPLEMENTING THIS METHOD
    38.
    发明申请
    METHOD FOR MONITORING THE MOUNTED POSITION OF WHEEL SENSORS FOR RAILWAY FACILITIES, AND DEVICE FOR IMPLEMENTING THIS METHOD 审中-公开
    方法用于实现IT FOR铁路系统车轮传感器成长监控和设备

    公开(公告)号：WO1998004446A1

    公开(公告)日：1998-02-05

    申请号：PCT/DE1997001584

    申请日：1997-07-23

    Applicant: SIEMENS AKTIENGESELLSCHAFT

    Inventor： SIEMENS AKTIENGESELLSCHAFT ,  SCHMIDT, Harald ,  ZIMMERMANN, Dirk

    IPC: B61L01/08

    CPC classification number: B61L1/167 ,  B61L1/08 ,  B61L1/169

    Abstract: Besides a sensor voltage (Us) derived from the current consumption of the oscillator (OSZ), the voltage applied to the oscillator, or the receiving voltage of a receiver, a first and second reference voltages (Uref1, Uref2) are fed alternately to the threshold-value switch (SW) of the wheel sensor; the sensor voltage is evaluated using them. The first reference voltage designates the switching threshold at which the threshold-value switch switches in the event of a vehicle passage, and the second reference voltage (Uref2) lies between the sensor voltage established when no vehicle passes the wheel sensor, and the sensor voltage that is established if the sensor is removed from the rail. By means of the cyclical application of the two reference voltages, in conjunction with a storage capacitor (C) fed by the threshold-value switch (SW), a check is made of whether the sensor has been removed from the rail. In this case, the storage capacitor, which is otherwise recharged via the threshold-value switch, discharges, causing a passage signal to be outputted to an evaluation device if the voltage drops below a pre-set level.

    Abstract translation: 车轮传感器的阈值开关（SW），以除了由振荡器（OSZ），存在于振荡器的谐振电压或者在第一和第二参考电压（UREF1，Uref2）的变化的接收器传感器电压（US）的接收电压的电压的电流消耗导出，以被提供，在此基础上 该传感器电压进行评价。 第一基准电压是在一个Befahrung事件的阈值开关的开关，所述第二参考电压（Uref2）位于自调整之间时不通过流量车轮传感器感测电压和，因为它是在从行驶轨道远程传感器建立的传感器电压穿越的阈值。 通过两个参考电压（C）与所述阈值开关（SW）中的一个连接被检查的循环侵入供给存储电容器，传感器是否已经从导轨移除。 在这种情况下，否则通过所述阈值存储电容器放电和重新加载时，它落在预定电压以下原因造成的，一个Befahrung消息的输出，以评估装置。

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