HARDWARE-BASED TIME SYNCHRONIZATION FOR HETEROGENEOUS SENSORS IN AUTONOMOUS VEHICLES

    公开(公告)号:US20250030531A1

    公开(公告)日:2025-01-23

    申请号:US18907297

    申请日:2024-10-04

    Applicant: TUSIMPLE, INC.

    Abstract: Devices, systems, and methods for hardware-based time synchronization for heterogenous sensors are described. An example method includes generating a plurality of input trigger pulses having a nominal pulse-per-second (PPS) rate, generating, based on timing information derived from the plurality of input trigger pulses, a plurality of output trigger pulses, and transmitting the plurality of output trigger pulses to a sensor of a plurality of sensors, wherein a frequency of the plurality of output trigger pulses corresponds to a target operating frequency of the sensor, wherein, in a case that a navigation system coupled to the synchronization unit is functioning correctly, the plurality of input trigger pulses is generated based on a nominal PPS signal from the navigation unit, and wherein, in a case that the navigation system is not functioning correctly, the plurality of input trigger pulses is generated based on a simulated clock source of the synchronization unit.

    SENSOR LAYOUT FOR AUTONOMOUS VEHICLES

    公开(公告)号:US20210344849A1

    公开(公告)日:2021-11-04

    申请号:US17374112

    申请日:2021-07-13

    Applicant: TUSIMPLE, INC.

    Inventor: Lei NIE

    Abstract: Disclosed are devices and systems for an optimized sensor layout for an autonomous or semi-autonomous vehicle. In one aspect, the system includes a vehicle capable of semi-autonomous or autonomous operation. A plurality of forward-facing cameras is coupled to the vehicle and configured to have a field of view in front of the vehicle. At least three forward-facing cameras of the plurality of forward-facing cameras have different focal lengths. A right-side camera is coupled to the right side of the vehicle, the right-side camera configured to have a field of view to the right of the vehicle. A left-side camera is coupled to the left side of the vehicle, the left-side camera is configured to have a field of view to the left of the vehicle.

    ADAPTIVE SENSOR CONTROL
    3.
    发明申请

    公开(公告)号:US20210405651A1

    公开(公告)日:2021-12-30

    申请号:US17359089

    申请日:2021-06-25

    Applicant: TUSIMPLE, INC.

    Abstract: A method for controlling an autonomous vehicle includes collecting data about a surrounding of the autonomous vehicle, the data including global information of where the autonomous vehicle is positioned; deriving, at least in part based on the collected data, a perceived environment based on localizing the global information; determining a driving condition of the autonomous vehicle based on the perceived environment; modifying, according to the determined driving condition, a first configuration parameter of a sensor to adjust an amount of output data from the sensor; and simultaneously adjusting, according to the determined driving condition, a second configuration parameter for processing the output data to allow consistent data capturing and processing of the output data. A control system can employ such a method, and an autonomous vehicle can utilize such a control system.

    SENSOR LAYOUT FOR AUTONOMOUS VEHICLES

    公开(公告)号:US20210084235A1

    公开(公告)日:2021-03-18

    申请号:US16572155

    申请日:2019-09-16

    Applicant: TUSIMPLE, INC.

    Inventor: Lei NIE

    Abstract: Disclosed are devices and systems for an optimized sensor layout for an autonomous or semi-autonomous vehicle. In one aspect, the system includes a vehicle capable of semi-autonomous or autonomous operation. A plurality of forward-facing cameras is coupled to the vehicle and configured to have a field of view in front of the vehicle. At least three forward-facing cameras of the plurality of forward-facing cameras have different focal lengths. A right-side camera is coupled to the right side of the vehicle, the right-side camera configured to have a field of view to the right of the vehicle. A left-side camera is coupled to the left side of the vehicle, the left-side camera is configured to have a field of view to the left of the vehicle.

    SENSOR LAYOUT FOR AUTONOMOUS VEHICLES
    5.
    发明公开

    公开(公告)号:US20230379593A1

    公开(公告)日:2023-11-23

    申请号:US18364558

    申请日:2023-08-03

    Applicant: TUSIMPLE, INC.

    Inventor: Lei NIE

    Abstract: Disclosed are devices and systems for an optimized sensor layout for an autonomous or semi-autonomous vehicle. In one aspect, the system includes a vehicle capable of semi-autonomous or autonomous operation. A plurality of forward-facing cameras is coupled to the vehicle and configured to have a field of view in front of the vehicle. At least three forward-facing cameras of the plurality of forward-facing cameras have different focal lengths. A right-side camera is coupled to the right side of the vehicle, the right-side camera configured to have a field of view to the right of the vehicle. A left-side camera is coupled to the left side of the vehicle, the left-side camera is configured to have a field of view to the left of the vehicle.

    SENSOR LAYOUT TECHNIQUES
    6.
    发明公开

    公开(公告)号:US20230266759A1

    公开(公告)日:2023-08-24

    申请号:US18167993

    申请日:2023-02-13

    Applicant: TuSimple, Inc.

    CPC classification number: G05D1/0088 G05D2201/0213

    Abstract: A system installed in a vehicle includes a first group of sensing devices configured to allow a first level of autonomous operation of the vehicle; a second group of sensing devices configured to allow a second level of autonomous operation of the vehicle, the second group of sensing devices including primary sensing devices and backup sensing devices; a third group of sensing devices configured to allow the vehicle to perform a safe stop maneuver; and a control element communicatively coupled to the first group of sensing devices, the second group of sensing devices, and the third group of sensing devices. The control element is configured to: receive data from at least one of the first group, the second group, or the third group of sensing devices, and provide a control signal to a sensing device based on categorization information indicating a group to which the sensing device belongs.

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