Automatic thoroughfare recognition and traffic counting

    公开(公告)号:US10529080B2

    公开(公告)日:2020-01-07

    申请号:US16014848

    申请日:2018-06-21

    发明人: Renat Idrisov

    摘要: Methods and systems for road recognition and traffic counting for complex thoroughfares are described. The method includes receiving a set of video frames captured by one or more electronic devices. The set of video frames includes a capture of a thoroughfare. The method further includes identifying an object featured in each respective video frame of a subset of the set of video frames, generating a plurality of vectors corresponding to a direction of motion of the object, combining intersecting vectors of the plurality of vectors, and generating a graphical map of at least one road in the thoroughfare based at least in part on the combination of intersecting vectors.

    Method and device for detecting whether object violates traffic signal

    公开(公告)号:US10510247B2

    公开(公告)日:2019-12-17

    申请号:US16053921

    申请日:2018-08-03

    发明人: Hongtao Guan

    摘要: The present disclosure provides a method and a device for detecting whether an object violates a traffic signal. The terminal moving along with the object is in communication with the network to acquire the state of the traffic signal in the moving direction of the object; when the acquired state of the traffic signal is in the no-passing state, the terminal determines a current position of the object according to beacons surrounding the intersection where the object is; and then, the terminal moving along with the object detects whether the object violates the traffic signal according to the determined current position of the object.

    Fiber-optic based traffic and infrastructure monitoring system

    公开(公告)号:US10458818B2

    公开(公告)日:2019-10-29

    申请号:US16099896

    申请日:2017-05-09

    摘要: In an arrangement of a traffic infrastructure and an optic sensor system (10, 20), the traffic infrastructure has a traffic carrying surface (51) for providing support of conveyance elements (92) of a vehicle (90), therewith allowing movements of the vehicle over the traffic carrying surface. The optic sensor system (10, 20) comprising an interrogator (10) and at least one fiber optic sensor (20) arranged below the traffic carrying surface that is coupled to the interrogator. The at least one fiber optic sensor (20) comprising an optic fiber (21) with a plurality of optic strain-sensor elements (22) distributed over its length. The plurality of optic strain-sensor elements (22) have mutually different optical characteristics, e.g. a mutually different characteristic wavelength. The interrogator (10) is configured to transmit an optical interrogation signal into the at least one fiber optic sensor, to receive a response optical signal modulated by said fiber optic sensor, and to identify changes in the optical characteristics of the response optical signal resulting from strains induced in said optic strain-sensor elements as a result of a conveyance element (92) of a vehicle (90) moving over the traffic carrying surface (51) across said at least one fiber optic sensor. wherein the at least one fiber optic sensor (20) extends at least substantially according to a straight line in a direction at least substantially parallel to the traffic carrying surface.

    Logistics monitoring method and device

    公开(公告)号:US10446023B2

    公开(公告)日:2019-10-15

    申请号:US15718733

    申请日:2017-09-28

    摘要: A logistics monitoring method and device are disclosed. The method comprises: obtaining an estimated speed of a vehicle at a road section according to the weather and speed data of the road section, and then acquiring logistics monitoring data according to the estimated speed of the vehicle. Weather information can be structured into a pattern that can be applied to logistics monitoring, and precise logistics monitoring and prediction data is acquired by combining weather factors with information about a road section. Due to the large time and space span in long-distance logistics, weather factors have a great impact on long-distance logistics, making the logistics monitoring method and device applicable for monitoring of intercity long-distance logistics.

    Monitoring traffic flow
    88.
    发明授权

    公开(公告)号:US10431077B2

    公开(公告)日:2019-10-01

    申请号:US15771503

    申请日:2016-10-26

    摘要: This application relates to apparatus and methods for traffic monitoring, especially for monitoring of road traffic flow using fiber optic distributed acoustic sensing. The method involves performing distributed acoustic sensing (DAS) using a suitable interrogator unit (103) to provide a measurement signal from each of a plurality of sensing portions of a first length of a sensing optical fiber (102), where the first length of the sensing optical fiber runs alongside a road (101) having a plurality of lanes. The measurement signals from the sensing portions are processed to detect vehicles (104) travelling on the road and to determine at least one detected traffic flow property. The method further involves using a traffic flow model to relate the detected flow property to a modelled flow property, where the traffic flow model is configured to model vehicle detections that will be missed by the distributed acoustic sensing i.e. an indication of vehicles present on the road but not detected by the DAS sensor.

    IDENTIFYING WRONG-WAY TRAVEL EVENTS
    89.
    发明申请

    公开(公告)号:US20190266893A1

    公开(公告)日:2019-08-29

    申请号:US15905506

    申请日:2018-02-26

    摘要: A device can obtain acceleration data and GPS location data. The GPS location data can include a plurality of GPS location data samples relating to vehicles. The acceleration data can include a plurality of acceleration data samples relating to one or more of the vehicles. The device can determine, using the plurality of acceleration data samples or the plurality of GPS location data samples, a potential wrong-way travel event associated with a vehicle, determine whether the vehicle is associated with an industry in which vehicles legitimately engage in wrong-way travel after determining the potential wrong-way travel event, and perform one or more actions to cause information regarding the potential wrong-way travel event to be provided to a user device based on determining the potential wrong-way travel event and determining whether the vehicle is associated with an industry in which vehicles legitimately engage in wrong-way travel.