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公开(公告)号：US11586213B2
公开(公告)日：2023-02-21
申请号：US17229384
申请日：2021-04-13
Applicant: Waymo LLC
Inventor： Khaled Refaat , Stephane Ross
Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for generating a representation of a trajectory of a target agent in an environment. In one aspect, the representation of the trajectory of the target agent in the environment is a concatenation of a plurality of channels, where each channel is represented as a two-dimensional array of data values. Each position in each channel corresponds to a respective spatial position in the environment, and corresponding positions in different channels correspond to the same spatial position in the environment. The channels include a time channel and a respective motion channel corresponding to each motion parameter in a predetermined set of motion parameters.
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公开(公告)号：US11585929B2
公开(公告)日：2023-02-21
申请号：US16555465
申请日：2019-08-29
Applicant: Waymo LLC
Inventor： Pierre-Yves Droz
Abstract: The present disclosure relates to systems and methods for determining a range and relative speed of objects in an environment. An example method includes causing a laser light source to emit a plurality of light pulses, both incoherent and coherent. The light pulses interact with an environment to provide reflected light pulses. The method includes providing a local oscillator signal based on a coherent light pulse. The method also includes receiving, at a detector, the reflected light pulses, and the local oscillator signal. The method additionally includes determining, based on at least one of the reflected light pulses, a presence of an object in the environment. The method yet further includes determining, based on another reflected light pulse and the local oscillator signal, a relative speed of the object with respect to the detector.
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公开(公告)号：US11585909B2
公开(公告)日：2023-02-21
申请号：US16227156
申请日：2018-12-20
Applicant: Waymo LLC
Inventor： Rahim Pardhan , Blaise Gassend
Abstract: The present disclosure relates to systems and methods that facilitate compliance of a laser device with a laser safety threshold. An example method includes receiving, from a sensing circuit, an operating voltage that is indicative of a charge of a capacitive element of a laser pulser circuit. The method also includes comparing a first voltage indicative of the operating voltage and a second voltage indicative of a reference voltage. The method additionally includes providing an output value based on the comparing. The method yet further includes evaluating compliance with the laser safety threshold based on the output value.
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公开(公告)号：US20230047336A1
公开(公告)日：2023-02-16
申请号：US17400286
申请日：2021-08-12
Applicant: Waymo LLC
Inventor： Jennifer Iglesias , Lucas Watson , Tian Yu Liu
IPC: B60W60/00 , B60W30/095 , B60W50/00 , B60W40/04
Abstract: Aspects of the disclosure provide for a method of controlling an autonomous vehicle in an autonomous driving mode. For instance, a predicted future trajectory for an object detected in a driving environment of the autonomous vehicle may be received. A routing intent for a planned trajectory for the autonomous vehicle may be received. The predicted future trajectory and the routing intent intersect with one another may be determined. When the predicted future trajectory and the routing intent are determined to intersect with one another, a time gap may be applied to a predicted future state of the object defined in the predicted future trajectory. A planned trajectory may be determined for the autonomous vehicle based on the applied time gap. The autonomous vehicle may be controlled in the autonomous driving mode based on the planned trajectory.
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公开(公告)号：US11578861B2
公开(公告)日：2023-02-14
申请号：US17657554
申请日：2022-03-31
Applicant: Waymo LLC
Inventor： Choon Ping Chng , Cheng-Han Wu , Lucian Ion , Giulia Guidi
Abstract: Example embodiments described herein involve a system for testing a light-emitting module. The light-emitting module may include a mounting platform configured to hold a light-emitting module for a camera. The mounting platform may also be configured to rotate. The system may further include a housing holding a plurality of photodiodes arranged in an array over at least a 90 degree arc of a hemisphere. The system may also include a controller configured to control the photodiodes and the rotation of the mounting platform.
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Patent Agency Ranking
公开(公告)号：US20230036720A1
公开(公告)日：2023-02-02
申请号：US17382449
申请日：2021-07-22
Applicant: Waymo LLC
Inventor： Ram Vellanki , Cheng Zhou
Abstract: Aspects of the disclosure provide for controlling an autonomous vehicle using no block costs in space and time. For instance, a trajectory for the autonomous vehicle to traverse in order to follow a route to a destination may be generated. A set of no-block zones through which the trajectory traverses may be identified. A no-block zone may be region where the autonomous vehicle should not stop but can drive through in an autonomous driving mode. For each given no-block zone of the set, a penetration cost that increases towards a center of the no-block zone and decreases towards edges of the no-block zone may be determined. Whether the autonomous vehicle should follow the trajectory may be determined based on the penetration cost. An autonomous vehicle may be controlled in the autonomous driving mode according to the trajectory based on the determination of whether the autonomous vehicle should follow the trajectory.
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公开(公告)号：US20230032410A1
公开(公告)日：2023-02-02
申请号：US17959170
申请日：2022-10-03
Applicant: Waymo LLC
Inventor： Pierre-Yves Droz , Simon Verghese , Brendan Hermalyn
Abstract: Example implementations are provided for an arrangement of co-aligned rotating sensors. One example device includes a light detection and ranging (LIDAR) transmitter that emits light pulses toward a scene according to a pointing direction of the device. The device also includes a LIDAR receiver that detects reflections of the emitted light pulses reflecting from the scene. The device also includes an image sensor that captures an image of the scene based on at least external light originating from one or more external light sources. The device also includes a platform that supports the LIDAR transmitter, the LIDAR receiver, and the image sensor in a particular relative arrangement. The device also includes an actuator that rotates the platform about an axis to adjust the pointing direction of the device.
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公开(公告)号：US20230031375A1
公开(公告)日：2023-02-02
申请号：US17873261
申请日：2022-07-26
Applicant: Waymo LLC
Inventor： Maher Mneimneh , Anne Hobbs Dorsey , Qiaojing Yan
IPC: B60W60/00
Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, that determine yield behavior for an autonomous vehicle. An agent that is in a vicinity of an autonomous vehicle can be identified. An obtained crossing intent prediction characterizes a predicted likelihood that the agent intends to cross a roadway during a future time period. First features of the agent and of the autonomous vehicle are obtained. An input that includes the first features and the crossing intent prediction is processed using a machine learning model to generate an intent yielding score that represents a likelihood that the autonomous vehicle should perform a yielding behavior due to the intent of the agent to cross the roadway. From at least the intent yielding score, an intent yield behavior signal is determined and indicates whether the autonomous vehicle should perform the yielding behavior prior to reaching the first crossing region.
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公开(公告)号：US20230023913A1
公开(公告)日：2023-01-26
申请号：US17958711
申请日：2022-10-03
Applicant: WAYMO LLC
Inventor： Romain Thibaux , David Harrison Silver , Congrui Hetang
Abstract: The technology relates to approaches for determining appropriate stopping locations at intersections for vehicles operating in a self-driving mode. While many intersections have stop lines painted on the roadway, many others have no such lines. Even if a stop line is present, the physical location may not match what is in store map data, which may be out of date due to construction or line repainting. Aspects of the technology employ a neural network that utilizes input training data and detected sensor data to perform classification, localization and uncertain estimation processes. Based on these processes, the system is able to evaluate distribution information for possible stop locations. The vehicle uses such information to determine an optimal stop point, which may or may not correspond to a stop line in the map data. This information is also used to update the existing map data, which can be shared with other vehicles.
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公开(公告)号：US11562573B2
公开(公告)日：2023-01-24
申请号：US17123185
申请日：2020-12-16
Applicant: WAYMO LLC
Inventor： Victoria Dean , Abhijit S Ogale , Henrik Kretzschmar , David Harrison Silver , Carl Kershaw , Pankaj Chaudhari , Chen Wu , Congcong Li
Abstract: Aspects of the disclosure relate to training and using a phrase recognition model to identify phrases in images. As an example, a selected phrase list may include a plurality of phrases is received. Each phrase of the plurality of phrases includes text. An initial plurality of images may be received. A training image set may be selected from the initial plurality of images by identifying the phrase-containing images that include one or more phrases from the selected phrase list. Each given phrase-containing image of the training image set may be labeled with information identifying the one or more phrases from the selected phrase list included in the given phrase-containing images. The model may be trained based on the training image set such that the model is configured to, in response to receiving an input image, output data indicating whether a phrase of the plurality of phrases is included in the input image.
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