公开(公告)号：US12131631B2

公开(公告)日：2024-10-29

申请号：US18069965

申请日：2022-12-21

Applicant: CHENGDU QINCHUAN IOT TECHNOLOGY CO., LTD.

Inventor： Zehua Shao ,  Yong Li ,  Yaqiang Quan ,  Bin Liu ,  Zhihui Wen

IPC: G08G1/01 ,  G08G1/052

CPC classification number: G08G1/0145 ,  G08G1/0133 ,  G08G1/052

Abstract: The present disclosure provides a method for managing traffic congestion in a smart city. The method includes predicting, based on a trained traffic state prediction model, one or more target areas where the traffic congestion is likely to occur from the preset area during a next time period by processing the traffic data information during the current time period, the traffic state prediction model being a Graph Neural Network (GNN) model and a predicted result being output by at least one node of a traffic state prediction model; determining whether a traffic scheduling strategy is needed to be switched based on traffic data information in the one or more target areas during the next time period; and in response to determining that the traffic scheduling strategy is needed to be switched, switching a first traffic scheduling strategy to a second traffic scheduling strategy.

公开(公告)号：US20240321092A1

公开(公告)日：2024-09-26

申请号：US18577768

申请日：2021-07-09

Applicant: Dr. Ing. h.c. F. Porsche Aktiengesellschaft

Inventor： Arsen Sagoian ,  Adrian-Sergiu Fatol ,  Ionut Giani Statie ,  Georg-Florin Grosu

IPC: G08G1/0967 ,  G06V20/58 ,  G08G1/04 ,  G08G1/052

CPC classification number: G08G1/0967 ,  G06V20/58 ,  G08G1/04 ,  G08G1/052

Abstract: A method and a system for cut-in and/or lane changing prediction in a first vehicle (102) includes an interface (104), in particular to a data bus, of the first vehicle (102) that is configured to receive a sequence of data sets. Each data set in the sequence has values that are indicative of a position or movement of a second vehicle relative the first vehicle. The system includes a model (108), in particular a recurrent neural network, that has a long short term memory that is configured to map the values from the sequence to a quantity for the sequence, in particular at least one binary label, indicative of a probability and/or confidence that a start of a cut-in and/or lane changing event by the second vehicle is detected or that no start of a cut-in and/or lane changing event by the second vehicle is detected.

公开(公告)号：US20240212487A1

公开(公告)日：2024-06-27

申请号：US18481639

申请日：2023-10-05

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Makoto MATSUSHITA

IPC: G08G1/01 ,  G08G1/052

CPC classification number: G08G1/0141 ,  G08G1/0112 ,  G08G1/0133 ,  G08G1/052

Abstract: The information distribution device includes a communication unit that communicates with a navigation device that notifies a user of traffic congestion information, probe data obtained from one or more probe vehicles that move on a road including at least two lanes having a common traveling direction, and store data related to a store facing a specific lane that is one of the at least two lanes, and a control unit that, when detecting a traffic congestion due to a waiting for entry into the store on a specific lane, distributes information indicating that the traffic congestion is occurring and that the traffic congestion is caused by a waiting for entry into the store, as traffic congestion information, to the navigation device via the communication unit.

公开(公告)号：US20240203249A1

公开(公告)日：2024-06-20

申请号：US18590128

申请日：2024-02-28

Applicant: GRABTAXI HOLDINGS PTE. LTD.

Inventor： Muhammad Rameez CHATNI ,  Munirul ABEDIN ,  Laiyi LIN ,  Miaojun LI

IPC: G08G1/052 ,  G08G1/00 ,  G08G1/01 ,  G08G1/123

CPC classification number: G08G1/052 ,  G08G1/0112 ,  G08G1/0129 ,  G08G1/123 ,  G08G1/207

Abstract: A method of detecting overspeeding for a vehicle, the method including obtaining historical trajectory data of a fleet of geographical areas from an electronic database; determining, by a microprocessor of a server, a distribution of speed of the historical trajectory data for each geographical area; based on the distribution of speed, determining, by a microprocessor of an electronic device associated with the vehicle, that a current speed of the vehicle is above a threshold speed corresponding to a pre-determined percentile of the distribution. A system and a computer-readable medium storing computer executable code for the method.

公开(公告)号：US20240194062A1

公开(公告)日：2024-06-13

申请号：US18517860

申请日：2023-11-22

Applicant: Hyundai Motor Company ,  Kia Corporation

Inventor： Seungwoo Ha

IPC: G08G1/01 ,  G08G1/052 ,  G08G1/0967

CPC classification number: G08G1/0141 ,  G08G1/0112 ,  G08G1/0129 ,  G08G1/0133 ,  G08G1/052 ,  G08G1/096725 ,  G08G1/096775

Abstract: A computing device includes: a communicator configured to communicate with a target vehicle and a plurality of vehicles; and a controller electrically connected to the communicator, wherein the controller is configured to collect vehicle data of the target vehicle and the plurality of vehicles, determine a traffic volume in an area in which the target vehicle is traveling, based on the collected vehicle data, determine a reference driving pattern based on the traffic volume in the area in which the target vehicle is traveling, determine a driving pattern of the target vehicle based on the vehicle data of the target vehicle, compare the driving pattern of the target vehicle with the reference driving pattern, and determine a safe driving index of the target vehicle based on a driving pattern difference between the driving pattern of the target vehicle and the reference driving pattern.

公开(公告)号：US20240194059A1

公开(公告)日：2024-06-13

申请号：US18077081

申请日：2022-12-07

Applicant: HERE Global B.V.

Inventor： Weimin HUANG ,  Jingwei XU ,  Bruce BERNHARDT ,  Yuxin GUAN

IPC: G08G1/01 ,  G08G1/052

CPC classification number: G08G1/0133 ,  G08G1/0108 ,  G08G1/0129 ,  G08G1/0141 ,  G08G1/0145 ,  G08G1/052

Abstract: A system, a method, and a computer program product may be provided for generating traffic congestion data for a road in a region. The system may include a memory configured to store computer executable instructions and a processor configured to execute the computer executable instructions to obtain probe data and map data. The processor may be further configured to generate traffic condition data for the road. The processor may be further configured to determine speed changes data associated with one or more vehicles. The processor may be further configured to calculate congestion length, time period, congestion speed for the one or more vehicles to reach a non-congestion state from a congestion state. The processor may be further configured to generate the traffic congestion data, based on the speed changes data, congestion length, a time period and congestion speed associated with the one or more vehicles on the road.

公开(公告)号：US20240161609A1

公开(公告)日：2024-05-16

申请号：US18284709

申请日：2021-04-09

Applicant: NEC CORPORATION

Inventor： Yuma MATSUDA ,  Tomoyuki HINO

IPC: G08G1/052 ,  G02B6/12 ,  G08G1/04

CPC classification number: G08G1/052 ,  G02B6/12002 ,  G08G1/04 ,  G02B2006/12138

Abstract: To improve the accuracy of vehicle speed calculation, the present disclosure extracts, on the basis of an optical signal received from an optical fiber cable laid in a road, a first pattern according to the traveling state of a vehicle on the road in a first time range and a first distance range, generates, on the basis of the first pattern, a second pattern in which the number of time points included in the first time range or the number of positions included in the first distance range has been decreased, and calculates the traveling speed of the vehicle on the road on the basis of the second pattern.

公开(公告)号：US20240157937A1

公开(公告)日：2024-05-16

申请号：US17978056

申请日：2022-10-31

Applicant: NISSAN NORTH AMERICA, INC.

Inventor： Nitish GUDAPATI ,  Fang Chieh CHOU ,  Najamuddin Mirza BAIG ,  Liam PEDERSEN

IPC: B60W30/14 ,  G08G1/052

CPC classification number: B60W30/143 ,  G08G1/052 ,  B60W2554/404 ,  B60W2554/80

Abstract: A vehicle on-board unit for a host vehicle comprises a communication system and an electronic controller. The communication system is programmed to electronically receive travel information from one or more preceding vehicles that are traveling ahead of the host vehicle in a lane. The electronic controller includes a vehicle path determination component programmed to determine a travel path of the host vehicle in the lane in which the host vehicle is currently traveling. The electronic controller further includes a target vehicle speed determination component programmed to determine a target vehicle speed for the host vehicle based on the travel information received from the one or more preceding vehicles. The travel information includes traveling speed of a predetermined group of preceding vehicles.

公开(公告)号：US11978338B2

公开(公告)日：2024-05-07

申请号：US17483733

申请日：2021-09-23

Applicant: ZHEJIANG UNIVERSITY

Inventor： Hongsheng Qi

IPC: G08G1/01 ,  G08G1/015 ,  G08G1/052

CPC classification number: G08G1/0133 ,  G08G1/0145 ,  G08G1/015 ,  G08G1/052

Abstract: Provided is an intersection deadlock identification method for a mixed flow of autonomous vehicles. This method considers the reality that the intersection traffic flow is composed of human driven vehicles and connected autonomous vehicles. Firstly, the two-dimensional coordinates, speed and front wheel steering angle information of all vehicles in the intersection are obtained, and the blockage graph of vehicles is constructed on the assumption that the front wheel steering angles of all vehicles are fixed. If there is no ring structure in the blockage graph, there is no deadlock; if there is a ring structure, the evasion distance propagation algorithm is used to calculate the evasion requirement distance of a vehicle in the ring. When the evasion requirement distance is greater than the permitted travelling distance of the vehicle itself, a weak traffic deadlock exists.

公开(公告)号：US20240112571A1

公开(公告)日：2024-04-04

申请号：US18474320

申请日：2023-09-26

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Ayumu SHIOMI ,  Atsushi MIYAGAWA ,  Hiroki TAKEUCHI ,  Toshiyuki KAWAI ,  Ryosuke FUKAYA ,  Hiroyuki TOKITA ,  Yusuke IKENOUE ,  Tsukasa KATO ,  Katsuhisa YOSHIKAWA ,  Yuta ICHIJYO ,  Takayuki AKAISHI ,  Shintaro KAWAI

IPC: G08G1/01 ,  G06N3/044 ,  G08G1/052

CPC classification number: G08G1/0133 ,  G06N3/044 ,  G08G1/0129 ,  G08G1/052

Abstract: A congestion prediction device, a congestion prediction method, and a storage medium are provided. A mapping outputs an output variable when input variables are input to the mapping. The output variable indicates a degree of congestion in a predetermined specific area. The mapping is learned in advance by machine learning. The input variables include congestion variables. Each of the congestion variables indicates a degree of congestion in the specific area at regular time intervals within a specific period. The output variable indicates a degree of congestion after a lapse of the regular time interval from an end time of the specific period.