-
公开(公告)号：US20230138084A1
公开(公告)日：2023-05-04
申请号：US17518773
申请日：2021-11-04
发明人： Helen E. Kourous-Harrigan , William Thomas Buller , Jeremy Graham , Susan Janiszewski , Colin Brooks
摘要： A three-dimensional grid model of a traffic scene can be determined based on grid elements. Weights can be determined for the grid elements of the three-dimensional grid model corresponding to priority regions and occluded grid elements. Grid coverage for respective stationary sensors can be determined based on the grid elements of the three-dimensional grid model. A matrix can be determined based on the grid coverage of the plurality of stationary sensors. An optimal subset of stationary sensors can be determined based on applying a greedy search algorithm to the matrix, the weights and costs corresponding to the plurality of stationary sensors to maximize the ratio of grid coverage to the cost based on poses of the plurality of stationary sensors.
-
公开(公告)号：US20230136374A1
公开(公告)日：2023-05-04
申请号：US17513068
申请日：2021-10-28
发明人： Yashar Zeiynali Farid , Kentaro Oguchi , Baik Hoh
摘要： A system for monitoring a traffic condition can include a processor and a memory. The memory can store a preliminary operations module, a calculations module, and a communications module. The preliminary operations module can include instructions that cause the processor to obtain information about the traffic condition of stopped or slow moving vehicles. The calculations module can include instructions that cause the processor to: (1) define a monitoring zone that encloses the traffic condition and (2) determine, based on data about velocities of vehicles in the monitoring zone, that an error of a prediction of a position of a vehicle, associated with the traffic condition, is less than a threshold. The communications module can include instructions that cause the processor to: (1) receive the data and (2) cause, in response to a determination that the error is less than the threshold, the information to be communicated to vehicles.
-
公开(公告)号：US20230134717A1
公开(公告)日：2023-05-04
申请号：US17980103
申请日：2022-11-03
申请人： Board of Regents of the Nevada System of Higher Education, on behalf of the University of Nevada
发明人： Hao Xu
IPC分类号： G08G1/01
摘要： Methods, systems and apparatus are disclosed for conducting background filtering on LiDAR sensor data. In some embodiments, a computer processor of a computer receives raw LiDAR sensor data from a roadside LiDAR sensor, decodes the raw LiDAR sensor data into 3D distance data, azimuth angle data and vertical angle data, and then generates a background table of datapoints utilizing the azimuth angle data and elevation data. The process also includes the computer processor comparing the 3D distance data to the datapoints of the background table, determining, based on the comparisons, static background object datapoints, and discarding the static background object datapoints. In implementations, the computer processor determines target datapoints based on the comparisons, and then stores the target datapoints in a storage device.
-
公开(公告)号：US20230131434A1
公开(公告)日：2023-04-27
申请号：US17509780
申请日：2021-10-25
IPC分类号： G01S19/45 , H04W4/40 , G08G1/056 , G08G1/01 , G01S17/931
摘要： Position enhancement for vehicle positioning is provided. Vehicle-to-everything (V2X) messages are received from a roadside unit (RSU) to an onboard unit (OBU) of a vehicle via a transceiver of the vehicle, the V2X messages indicating a location of the RSU. Image sensors of the vehicle are utilized to capture sensor data of the RSU. A current position of the vehicle is updated to a corrected current position of the vehicle based the RSU as shown in the sensor data and the location of the RSU indicated in the V2X messages.
-
公开(公告)号：US20230130870A1
公开(公告)日：2023-04-27
申请号：US17508407
申请日：2021-10-22
申请人： Richard Wohler
发明人： Richard Wohler
摘要： A traffic light control assembly includes a plurality of mounting poles each attached to a cross beam of a respective traffic signal at a roadway intersection. A plurality of light detection and ranging sensors is each mounted to a respective mounting pole to be elevated over traffic on the roadway. Each of the light detection and ranging sensors is positioned to sense the number of vehicles that are stopped at an opposing traffic signal. Each of the light detection and ranging sensors is in electrical communication with a remote data unit thereby facilitating the remote data unit to analyze data gathered by each of the light detection and ranging sensors with respect to the number of vehicles. Moreover, the remote data unit adjusts timing of the traffic signals to most efficiently direct traffic through the intersection with respect to the number of vehicles that are approaching the intersection.
-
公开(公告)号：US20230128379A1
公开(公告)日：2023-04-27
申请号：US17935507
申请日：2022-09-26
申请人： Robert Bosch GmbH
IPC分类号： G08G1/01
摘要： A method and device for evaluating a function for predicting a trajectory of an object in an environment of a vehicle. The method includes acquiring first environment data values representing the environment of the vehicle at a first point in time, and the first environment data values including a start position of the object and object parameters; determining a trajectory of the object as a function of the start position and the object parameters, the trajectory including a possible position of the object at a second point in time later than the first point in time; acquiring second environment data values representing the environment of the vehicle at the second point in time and including an actual position of the object; determining an agreement between the possible position and the actual position at the second point in time; and evaluating the function as a function of the agreement.
-
公开(公告)号：US20230126364A1
公开(公告)日：2023-04-27
申请号：US17971758
申请日：2022-10-24
IPC分类号： G08G1/01
摘要： A method for traffic congestion detection for a roadway facility having a plurality of segments includes receiving travel time data from at least one travel time data source for a plurality of predetermined time intervals and determining a travel time index (TTI) for each time interval based on the travel time data associated with the time interval. The method further includes determining a change in travel time index (TTI) intensity between two successive time intervals for each pair of successive time intervals in the plurality of time intervals, applying a signal processing filter to the determined change in travel time index intensity to generate a filter value for each time interval; and determining a congestion level for each time interval based on the filter value for each time interval and a predetermined set of congestion level thresholds.
-
公开(公告)号：US20230125646A1
公开(公告)日：2023-04-27
申请号：US17452447
申请日：2021-10-27
IPC分类号： G08G1/01
摘要： Systems and method are provided for notifying an operator of a vehicle of reverse operation of a vehicle. In one embodiment, a method includes: receiving, by a processor, at least one of sensor data and vehicle message data, wherein the sensor data is generated by a sensor of an infrastructure system, and wherein the vehicle message data is generated by a remote vehicle; determining, by the processor, a reverse operation of the remote vehicle based on the at least one of the sensor data and the vehicle message data; and generating, by the processor, notification data based on the reverse operation of the remote vehicle.
-
公开(公告)号：US11636353B2
公开(公告)日：2023-04-25
申请号：US16165747
申请日：2018-10-19
摘要： The present invention provides for a cognitive system using an autonomous vehicle includes a plurality of sensors configured to obtain the weather forecast for a pollution detectable area; a cognitive input to determine the pollution detectable area having highest sensitivity of pollution; a light detecting and ranging system configured to spatially probe pollution levels distributed in the pollution detectable area; an evaluation system to evaluate the probed pollution levels in the pollution detectable area; and a recommendation system for recommending an action to be taken based on evaluation system results of the probed pollution levels in the pollution detectable area, wherein the pollution levels are detected based light emitted by the light detecting and ranging system.
-
公开(公告)号：US11636307B2
公开(公告)日：2023-04-25
申请号：US16816671
申请日：2020-03-12
申请人： UATC, LLC
IPC分类号： G06N3/04 , G06N3/08 , G08G1/00 , G01C21/36 , G08G1/01 , G06N7/00 , G06N7/04 , G06N3/06 , G06N3/084
摘要： Systems and methods for generating motion forecast data for actors with respect to an autonomous vehicle and training a machine learned model for the same are disclosed. The computing system can include an object detection model and a graph neural network including a plurality of nodes and a plurality of edges. The computing system can be configured to input sensor data into the object detection model; receive object detection data describing the location of the plurality of the actors relative to the autonomous vehicle as an output of the object detection model; input the object detection data into the graph neural network; iteratively update a plurality of node states respectively associated with the plurality of nodes; and receive, as an output of the graph neural network, the motion forecast data with respect to the plurality of actors.
-
-
-
-
-
-
-
-
-
搜索结果
6921 条记录 (耗时 0.095 秒)