Traffic signal information distribution system, and traffic signal information distribution method

    公开(公告)号:US11756422B2

    公开(公告)日:2023-09-12

    申请号:US17280933

    申请日:2019-09-30

    CPC classification number: G08G1/091 G08G1/095

    Abstract: A signal information distribution system is configured to distribute, to vehicles, signal information including a lighting start time and a lighting continuation interval of each of a plurality of signal lights installed at an intersection, each signal light being configured to light in a predetermined color. The system includes: a storage unit configured to store a timing table including scheduled lighting intervals of the plurality of signal lights; a monitor unit configured to observe lighting and extinction of the plurality of signal lights; a generation unit configured to generate the signal information, based on an actual lighting interval, of a predetermined signal light, obtained from an observation result of the predetermined signal light, and on the scheduled lighting interval, of the predetermined signal light, included in the timing table; and a distribution unit configured to distribute, to the vehicles, the signal information generated by the generation unit.

    Method for traffic flow analysis and timing based on vehicular volume flow

    公开(公告)号:US11741832B2

    公开(公告)日:2023-08-29

    申请号:US17402812

    申请日:2021-08-16

    CPC classification number: G08G1/09

    Abstract: A method for determining space allocation and signal timing of an isolated signalized intersection consists of at least one remote server and a processing module that is communicably coupled with the at least one remote server. A plurality of traffic-related data, wherein the plurality of traffic-related data reflects activity at the isolated signalized intersection, is received through the processing module. A space determination process is performed on the plurality of traffic-related data through the processing module. Next, a timing determination process is performed on the plurality of traffic-related data through the processing module in order to minimize the average intersection delay at the isolated signalized intersection. Based upon the results from the space determination process and the timing determination process a cycle length is determined for the isolated signalized intersection.

    COMMUNICATION CONTROL DEVICE, CARAVAN TRAVEL CONTROL DEVICE, COMMUNICATION SYSTEM, AND COMMUNICATION CONTROL METHOD

    公开(公告)号:US20230222917A1

    公开(公告)日:2023-07-13

    申请号:US17996637

    申请日:2020-05-15

    CPC classification number: G08G1/22 G08G1/09 H04W4/46

    Abstract: A communication control device (5) includes: a vehicle information acquiring unit (41) to acquire vehicle information including communication performance information indicating performance of wireless communication in each of a plurality of vehicles (V); a data assignment unit (42) to assign individual pieces of data (D) included in a data group (DG) collected by a vehicle group (VG) to respective selected vehicles (V) among the plurality of vehicles (V) on the basis of the performance of the wireless communication; a data distribution unit (43) to execute control to distribute a piece of data (D) included in the data group (DG) to a corresponding one of the plurality of vehicles (V) by the wireless communication on the basis of a result of the assignment by the data assignment unit (42); and a transmission control unit (44) to execute control to transmit one of the pieces of data (D) which is assigned to a representative vehicle to a server (2) by the wireless communication.

    Planning accommodations for reversing vehicles

    公开(公告)号:US11682296B2

    公开(公告)日:2023-06-20

    申请号:US16456987

    申请日:2019-06-28

    Applicant: Zoox, Inc.

    Abstract: Techniques for determining that a first vehicle is associated with a reverse state, and controlling a second vehicle based on the reverse state, are described herein. In some examples, the first vehicle may provide an indication that the first vehicle will be executing a reverse maneuver, such as with reverse lights on the vehicle or by positioning at an angle relative to a road or parking space to allow for the reverse maneuver into a desired location. A planning system of the second vehicle (such as an autonomous vehicle) may receive sensor data and determine a variety of these indications to determine a probability that the vehicle is going to execute a reverse maneuver. The second vehicle can further determine a likely trajectory of the reverse maneuver and can provide appropriate accommodations (e.g., time and/or space) to allow the second vehicle to execute the maneuver safely and efficiently.

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