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    Measurement method, measurement device, measurement system, and measurement program
    1.
    发明授权
    Measurement method, measurement device, measurement system, and measurement program 有权

    公开(公告)号：US11881102B2

    公开(公告)日：2024-01-23

    申请号：US17204091

    申请日：2021-03-17

    申请人： Seiko Epson Corporation

    发明人： Yoshihiro Kobayashi

    IPC分类号： G08G1/02 ,  G01G19/03

    CPC分类号： G08G1/02 ,  G01G19/03

    摘要： A measurement method includes: a step of acquiring first observation point information; a step of acquiring second observation point information; a step of calculating a path deflection waveform at a third observation point; a step of calculating a path deflection waveform at a central position between the first observation point and the second observation point; a step of calculating a measurement waveform as a physical quantity at the third observation point; a step of calculating an amplitude coefficient at which a difference is minimized between the measurement waveform and a waveform obtained by multiplying the path deflection waveform at the third observation point by the amplitude coefficient; and a step of calculating, based on the path deflection waveform at the central position and the amplitude coefficient, an estimation waveform as a physical quantity at the central position.

    Smart City Apparatus, System, and Method
    3.
    发明申请
    Smart City Apparatus, System, and Method 审中-公开

    公开(公告)号：US20180181091A1

    公开(公告)日：2018-06-28

    申请号：US15390061

    申请日：2016-12-23

    申请人： CenturyLink Intellectual Property LLC

    发明人： Tom Funk ,  Phil Carpenter ,  William R. Walker

    IPC分类号： G05B15/02 ,  H04L29/08 ,  H04L12/28 ,  G08G1/09

    CPC分类号： H04L12/2852 ,  G01C21/3415 ,  G08G1/02 ,  G08G1/07 ,  G08G1/095 ,  G08G1/096811 ,  G08G1/096844 ,  G08G1/133 ,  G08G1/163 ,  G08G1/166 ,  G08G1/205 ,  H04L67/12

    摘要： Novel tools and techniques are provided for implementing Internet of Things (“IoT”) functionality. In some embodiments, a computing system or IoT management node might receive sensor data from one or more IoT-capable sensors, analyze the sensor data to determine one or more actions to be taken, and identify one or more devices (e.g., household devices associated with a customer premises; vehicular components associated with a vehicle; devices disposed in, on, or along a roadway; devices disposed throughout a population area; etc.) for performing the determined one or more first actions. The computing system or IoT management node then autonomously controls each of the identified one or more devices to perform tasks based on the determined one or more first actions to be taken, thereby implementing smart environment functionality (e.g., smart home, building, or customer premises functionality, smart vehicle functionality, smart roadway functionality, smart city functionality, and so on).

    System and Associated Methods for Operating Traffic Signs
    7.
    发明申请
    System and Associated Methods for Operating Traffic Signs 有权

    公开(公告)号：US20170169706A1

    公开(公告)日：2017-06-15

    申请号：US15375700

    申请日：2016-12-12

    申请人： Charlotte Arnold

    发明人： Charlotte Arnold

    IPC分类号： G08G1/07

    CPC分类号： G08G1/07 ,  G02B27/00 ,  G08G1/0116 ,  G08G1/0141 ,  G08G1/02 ,  G08G1/04 ,  G08G1/095 ,  G08G1/096716 ,  G08G1/096783 ,  G08G1/164

    摘要： A system for controlling activation of a traffic warning sign. The system receives a signal generated from a local sensor indicating presence of an automobile and sends an activate signal command in response. The system will activate a local interface logic controller in response to receiving the activate signal command. The system further generates a Wi-Fi connect request with an SSID in response to activating the interface logic controller. The system sends the Wi-Fi connect request to a remote system. The system further determines if the traffic warning sign should be activated and if a positive determination is made, activate the traffic warning sign. Determination is made by determining if a Wi-Fi remote connect request is received. If it is determined a remote connect request has been received, a traffic warning message is generated and sent to a terminal for display or activation.

    Online traffic volume monitoring system and method based on phase-sensitive optical time domain reflectometry
    8.
    发明授权
    Online traffic volume monitoring system and method based on phase-sensitive optical time domain reflectometry 有权

    公开(公告)号：US09679478B2

    公开(公告)日：2017-06-13

    申请号：US14694984

    申请日：2015-04-23

    申请人： University of Electronic Science and Technology of China

    发明人： Huijuan Wu ,  Yunjiang Rao ,  Ya Qian ,  Hanyu Li

    IPC分类号： G08G1/04 ,  H04L12/26 ,  G08G1/02

    CPC分类号： G08G1/04 ,  G08G1/02

    摘要： An online traffic volume monitoring system based on a phase-sensitive optical time domain reflectometry and its monitoring method are related to a field of intelligent transportation and an application of distributed fiber sensing. A vehicle moving temporal-spatial response graph is generated by accumulating differentiated Optical Time-Domain Reflectometry tracks at different moments in one unit monitoring period for traffic volume statistics, and then converted into a vehicle moving trajectory image through binarization and image pre-processing. Parameters of the moving vehicles are detected by utilizing a search-match method. A traffic volume, moving speeds, moving directions and locations are obtained respectively from detected trajectory number, and a tilt angle and pixel positions. The monitoring method is helpful to solve traffic congestion problem and informing drivers of real-time traffic volume, and contributes to realize an intelligent city traffic regulation.

    Piezoelectric sensor module of a WIM system for two-track vehicles and measurement method
    9.
    发明授权
    Piezoelectric sensor module of a WIM system for two-track vehicles and measurement method 有权
    用于双轨车辆的WIM系统的压电传感器模块和测量方法

    公开(公告)号：US09488517B2

    公开(公告)日：2016-11-08

    申请号：US14400928

    申请日：2013-05-15

    申请人： KISTLER HOLDING AG

    发明人： David Cornu ,  Adrian Hofmann

    IPC分类号： G01G19/02 ,  G08G1/02 ,  G08G1/052 ,  G01P3/50

    CPC分类号： G01G19/024 ,  G01P3/50 ,  G08G1/02 ,  G08G1/052

    摘要： A sensor module for measuring axle speeds and weights of double-track vehicles which travel in a direction of travel (L) along a carriageway with two lanes includes a plurality of piezoelectric strip sensors (A, B, C, D) that are arranged in a first lane group (I) and a second lane group (II). All the strip sensors (A, B, C, D) are spaced from each other in the direction of travel (L) via a secure longitudinal offset (LAD), which is greater than the maximum wheel contact length, and are offset from one another by between one centimeter and fifteen centimeters in the transversal direction. The sensor module also has a module length (LABCD) of less than 80 centimeters.

    摘要翻译： 一种传感器模块，用于测量沿着行进方向行进的双轨车辆的车轴速度和重量，沿着具有两个车道的车道行驶，包括多个压电条传感器（A，B，C，D），其布置在 第一车道组（I）和第二车道组（II）。 所有带状传感器（A，B，C，D）经由长于最大轮接触长度的安全纵向偏移（LAD）在行进方向（L）上彼此间隔开，并且偏离一个 另一个在横向方向上在一厘米到十五厘米之间。 传感器模块还具有小于80厘米的模块长度（LABCD）。

    Online traffic volume monitoring system and method based on phase-sensitive optical time domain reflectometry
    10.
    发明申请
    Online traffic volume monitoring system and method based on phase-sensitive optical time domain reflectometry 审中-公开
    基于相敏光时域反射测量的在线交通量监测系统及方法

    公开(公告)号：US20160275788A1

    公开(公告)日：2016-09-22

    申请号：US14694984

    申请日：2015-04-23

    申请人： University of Electronic Science and Technology of China

    发明人： Huijuan Wu ,  Yunjiang Rao ,  Ya Qian ,  Hanyu Li

    IPC分类号： G08G1/04

    CPC分类号： G08G1/04 ,  G08G1/02

    摘要： An online traffic volume monitoring system based on a phase-sensitive optical time domain reflectometry and its monitoring method are related to a field of intelligent transportation and an application of distributed fiber sensing. A vehicle moving temporal-spatial response graph is generated by accumulating differentiated Optical Time-Domain Reflectometry tracks at different moments in one unit monitoring period for traffic volume statistics, and then converted into a vehicle moving trajectory image through binarization and image pre-processing. Parameters of the moving vehicles are detected by utilizing a search-match method. A traffic volume, moving speeds, moving directions and locations are obtained respectively from detected trajectory number, and a tilt angle and pixel positions. The monitoring method is helpful to solve traffic congestion problem and informing drivers of real-time traffic volume, and contributes to realize an intelligent city traffic regulation.

    摘要翻译： 基于相敏光时域反射测量及其监测方法的在线流量监测系统与智能交通领域和分布式光纤传感应用有关。 通过在一个单位监测周期内在不同时刻累积差分光时域反射测量轨迹来产生车辆移动时空响应图，用于交通量统计，然后通过二值化和图像预​​处理转换成车辆移动轨迹图像。 通过利用搜索匹配方法来检测移动车辆的参数。 分别从检测到的轨迹数以及倾斜角度和像素位置获得交通量，移动速度，移动方向和位置。 监测方法有助于解决交通拥堵问题，通知驾驶员实时交通量，有助于实现智能城市交通管制。