公开(公告)号：US20110115668A1

公开(公告)日：2011-05-19

申请号：US12913666

申请日：2010-10-27

申请人： ALAN V. BRAY ,  Sean McNeal ,  Jesse McDaniel

发明人： ALAN V. BRAY ,  Sean McNeal ,  Jesse McDaniel

IPC分类号： G01S13/58 ,  G01S13/00 ,  G01S13/42

CPC分类号： G01S13/605 ,  B61L25/021 ,  B61L25/026 ,  G01C22/02 ,  G01P3/66 ,  G01P3/68 ,  G01S13/865 ,  G01S17/58

摘要： A non-contact, distance traveled measurement system (DTMS) to calculate speed and distance traveled by a vehicle over rails—more specifically, by trains traveling on standard railroad tracks. Preferably, a pair of short range (near field) microwave-based transmitters/sensors (transceivers) are mounted on the underside of the train and used to key on rail-bed features such as cross ties or tie plates. Preferred embodiments also include infrared sensors as a redundant channel that is less sensitive to moisture in the track bed. Data from the sensors is correlated to determine the time delay between the first and second sensors' passage over objects on the rail bed such as cross-ties or tie-plates. From this time delay, nearly instantaneous velocity can be computed at each given target such as a tie plate (metal target) or a tie (dielectric contrast target). Velocity versus time curves can be integrated over time to derive distance traveled.

摘要翻译： 一种非接触式距离行驶测量系统（DTMS），用于计算车辆在轨道上行驶的速度和距离，特别是通过在标准铁轨上行驶的列车。 优选地，一对短距离（近场）基于微波的发射器/传感器（收发器）安装在火车的下侧，并用于键入诸如十字架或连接板的轨道床特征。 优选实施例还包括红外传感器作为对轨道床中的水分较不敏感的冗余通道。 来自传感器的数据相关联，以确定第一和第二传感器通过轨道床上的物体（例如交叉连接或连接板）之间的时间延迟。 从该时间延迟，可以在每个给定的目标例如连接板（金属靶）或连接（介电对比目标）处计算几乎瞬时的速度。 速度与时间曲线可以随着时间的推移积分，以得出旅行距离。

公开(公告)号：US08149160B2

公开(公告)日：2012-04-03

申请号：US12913666

申请日：2010-10-27

申请人： Alan V. Bray ,  Sean McNeal ,  Jesse McDaniel

发明人： Alan V. Bray ,  Sean McNeal ,  Jesse McDaniel

IPC分类号： G01S13/08

CPC分类号： G01S13/605 ,  B61L25/021 ,  B61L25/026 ,  G01C22/02 ,  G01P3/66 ,  G01P3/68 ,  G01S13/865 ,  G01S17/58

摘要： A non-contact, distance traveled measurement system (DTMS) to calculate speed and distance traveled by a vehicle over rails—more specifically, by trains traveling on standard railroad tracks. Preferably, a pair of short range (near field) microwave-based transmitters/sensors (transceivers) are mounted on the underside of the train and used to key on rail-bed features such as cross ties or tie plates. Preferred embodiments also include infrared sensors as a redundant channel that is less sensitive to moisture in the track bed. Data from the sensors is correlated to determine the time delay between the first and second sensors' passage over objects on the rail bed such as cross-ties or tie-plates. From this time delay, nearly instantaneous velocity can be computed at each given target such as a tie plate (metal target) or a tie (dielectric contrast target). Velocity versus time curves can be integrated over time to derive distance traveled.

摘要翻译： 一种非接触式距离行驶测量系统（DTMS），用于计算车辆在轨道上行驶的速度和距离，特别是通过在标准铁轨上行驶的列车。 优选地，一对短距离（近场）基于微波的发射器/传感器（收发器）安装在火车的下侧，并用于键入诸如十字架或连接板的轨道床特征。 优选实施例还包括红外传感器作为对轨道床中的水分较不敏感的冗余通道。 来自传感器的数据相关联，以确定第一和第二传感器通过轨道床上的物体（例如交叉连接或连接板）之间的时间延迟。 从该时间延迟，可以在每个给定的目标例如连接板（金属靶）或连接（介电对比目标）处计算几乎瞬时的速度。 速度与时间曲线可以随着时间的推移积分，以得出旅行距离。