Tracking service queues using single-point signal monitoring

    公开(公告)号:US10244356B2

    公开(公告)日:2019-03-26

    申请号:US15894421

    申请日:2018-02-12

    摘要: A method of tracking a service queue using a single-point signal monitor in which at least one customer carries a wireless device may include: receiving a received signal strength from the wireless device as a trace; identify first segments of the trace containing mostly positive sloped received signal strength; identify second segments of the trace containing mostly negative sloped received signal; extract attributes from the first and second segments as child variables for two parent nodes in a Bayesian Network in which the two parent nodes respectively model a beginning of service and a leaving period for a service queue; and inputting the extracted attributes into Bayesian Network; and determining a beginning of service and leaving period using the Bayesian Network. The method may also include determining critical time points in a trace using a K-L divergence technique.

    DEVICE-FREE ACTIVITY IDENTIFICATION USING FINE-GRAINED WIFI SIGNATURES

    公开(公告)号:US20190052725A1

    公开(公告)日:2019-02-14

    申请号:US16160979

    申请日:2018-10-15

    IPC分类号: H04L29/08 H04W4/30 H04W4/029

    摘要: A system includes a device that is disposed within an environment and is adapted to communicate over a radio frequency communication link. The system also includes a wireless access point disposed within the environment, including a wireless transceiver in communication with the device over a radio frequency communication link using a plurality of channels, and recording a channel state information data set for the radio frequency communication link. The system also includes a monitoring device including a memory storing a plurality of activity profiles, each of which includes an activity and a channel state information profile corresponding to the activity, and a processor receiving, from the wireless access point, the channel state information data set and determining, based on a comparison of the channel state information data set to the channel state information profile of each of the plurality of activity profiles, the activity of the person in the environment.

    VEHICULAR INFORMATION SYSTEMS AND METHODS

    公开(公告)号:US20210398425A1

    公开(公告)日:2021-12-23

    申请号:US17465011

    申请日:2021-09-02

    摘要: Disclosed is a method and system that receives sensor information from each of a plurality of sensors. Each sensor in the plurality is associated with a vehicle. The sensor information includes location coordinates of each vehicle in the plurality. The sensor information associated with each vehicle in the plurality then is translated to parking statistics information. In one embodiment, the translation is based on an aggregate of sensor information corresponding to the plurality of vehicles. The system then communicates parking statistics information to the vehicle.

    Vehicular information systems and methods

    公开(公告)号:US11113966B2

    公开(公告)日:2021-09-07

    申请号:US17100478

    申请日:2020-11-20

    摘要: Disclosed is a method and system that receives sensor information from each of a plurality of sensors. Each sensor in the plurality is associated with a vehicle. The sensor information includes location coordinates of each vehicle in the plurality. The sensor information associated with each vehicle in the plurality then is translated to parking statistics information. In one embodiment, the translation is based on an aggregate of sensor information corresponding to the plurality of vehicles. The system then communicates parking statistics information to the vehicle.

    Vehicular information systems and methods

    公开(公告)号:US10657815B2

    公开(公告)日:2020-05-19

    申请号:US16030149

    申请日:2018-07-09

    摘要: Disclosed is a method and system that receives sensor information from each of a plurality of sensors. Each sensor in the plurality is associated with a vehicle. The sensor information includes location coordinates of each vehicle in the plurality. The sensor information associated with each vehicle in the plurality then is translated to parking statistics information. In one embodiment, the translation is based on an aggregate of sensor information corresponding to the plurality of vehicles. The system then communicates parking statistics information to the vehicle.

    VEHICULAR INFORMATION SYSTEMS AND METHODS
    9.
    发明申请
    VEHICULAR INFORMATION SYSTEMS AND METHODS 有权
    机动车信息系统与方法

    公开(公告)号:US20150371540A1

    公开(公告)日:2015-12-24

    申请号:US14841085

    申请日:2015-08-31

    IPC分类号: G08G1/14 G08G1/01

    摘要: Disclosed is a method and system that receives sensor information from each of a plurality of sensors. Each sensor in the plurality is associated with a vehicle. The sensor information includes location coordinates of each vehicle in the plurality. The sensor information associated with each vehicle in the plurality then is translated to parking statistics information. In one embodiment, the translation is based on an aggregate of sensor information corresponding to the plurality of vehicles. The system then communicates parking statistics information to the vehicle.

    摘要翻译: 公开了一种从多个传感器中的每一个接收传感器信息的方法和系统。 多个中的每个传感器与车辆相关联。 传感器信息包括多个车辆中的每个车辆的位置坐标。 与多个车辆中的每个车辆相关联的传感器信息被转换为停车统计信息。 在一个实施例中,翻译是基于对应于多个车辆的传感器信息的集合。 系统然后将停车统计信息传达给车辆。