Sensor adjustment based on vehicle motion
An example system includes a light detection and ranging (LIDAR) device that scans a field-of-view defined by a pointing direction of the LIDAR device. The system also includes an actuator that adjusts the pointing direction of the LIDAR device. The system also includes one or more sensors that indicate measurements related to motion of a vehicle associated with the LIDAR device. The system also includes a controller that causes the actuator to adjust the pointing direction of the LIDAR device based on at least the motion of the vehicle indicated by the one or more sensors.
1. A method comprising:
scanning an environment of a vehicle by a light detection and ranging (LIDAR) device mounted to the vehicle, the LIDAR device having a field of view defined by a pointing direction of the LIDAR device, wherein the scanning comprises rotating the pointing direction of the LIDAR device at a rate of rotation in a direction of rotation;
receiving sensor data indicative of motion and orientation of the vehicle relative to the environment of the vehicle, wherein the sensor data indicative of motion and orientation of the vehicle comprises data indicative of the vehicle beginning a turning maneuver in a turning direction; and
adjusting the rate of rotation of the pointing direction of the LIDAR device based on the turning direction, wherein adjusting the rate of rotation of the pointing direction of the LIDAR device based on the turning direction comprises at least one of: (i) decreasing the rate of rotation based on the turning direction being the same as the direction of rotation; or (ii) increasing the rate of rotation based on the turning direction being opposite the direction of rotation.
2. The method of claim 1 , wherein the turning direction is the same as the direction of rotation, wherein decreasing the rate of rotation comprises decreasing the rate of rotation from a first rate of rotation to a second rate of rotation.
3. The method of claim 2 , further comprising:
receiving further sensor data indicative of motion and orientation of the vehicle relative to the environment of the vehicle, wherein the further sensor data indicative of motion and orientation of the vehicle comprises data indicative of the vehicle completing the turning maneuver; and
further adjusting the rate of rotation of the pointing direction of the LIDAR device, wherein further adjusting the rate of rotation of the pointing direction of the LIDAR device comprises increasing the rate of rotation from the second rate of rotation to the first rate of rotation.
4. The method of claim 1 , wherein the turning direction is opposite the direction of rotation, wherein increasing the rate of rotation comprises increasing the rate of rotation from a first rate of rotation to a second rate of rotation.
5. The method of claim 4 , further comprising:
receiving further sensor data indicative of motion and orientation of the vehicle relative to the environment of the vehicle, wherein the further sensor data indicative of motion and orientation of the vehicle comprises data indicative of the vehicle completing the turning maneuver; and
further adjusting the rate of rotation of the pointing direction of the LIDAR device, wherein further adjusting the rate of rotation of the pointing direction of the LIDAR device comprises decreasing the rate of rotation from the second rate of rotation to the first rate of rotation.
6. The method of claim 1 , wherein the sensor data indicative of motion and orientation of the vehicle further comprises data indicative of a rate of change to a yaw direction of the vehicle associated with the turning maneuver, and wherein adjusting the rate of rotation of the pointing direction of the LIDAR device is further based on the rate of change to the yaw direction of the vehicle.
7. The method of claim 1 , wherein rotating the pointing direction of the LIDAR device comprises rotating the LIDAR device by an actuator, and wherein adjusting the rate of rotation of the pointing direction of the LIDAR device comprises controlling the actuator.
8. The method of claim 1 , wherein adjusting the rate of rotation of the pointing direction of the LIDAR device comprises controlling optics within the LIDAR device.
9. The method of claim 1 , wherein receiving sensor data indicative of motion and orientation of the vehicle relative to the environment of the vehicle comprises:
receiving sensor data from at least one of an inertial measurement unit (IMU), a gyroscope, an accelerometer, or a compass.
10. The method of claim 1 , further comprising:
receiving additional sensor data indicative of motion of the pointing direction of the LIDAR device relative to the vehicle, and wherein adjusting the rate of rotation of the pointing direction of the LIDAR device is further based on the additional sensor data indicative of motion of the pointing direction of the LIDAR device relative to the vehicle.
11. The method of claim 10 , wherein receiving additional sensor data indicative of motion of the pointing direction of the LIDAR device relative to the vehicle comprises:
receiving additional sensor data from an encoder.
12. A system comprising:
a light detection and ranging (LIDAR) device mounted to a vehicle, wherein the LIDAR device has a field of view defined by a pointing direction of the LIDAR device, and wherein the LIDAR device is configured to scan an environment of the vehicle by rotating the pointing direction of the LIDAR device at a rate of rotation in a direction of rotation;
one or more sensors configured to provide sensor data indicative of motion and orientation of the vehicle relative to the environment of the vehicle; and
a controller coupled to the LIDAR device and the one or more sensors, wherein the controller is configured to perform operations comprising:
receiving, from the one or more sensors, the sensor data indicative of motion and orientation of the vehicle relative to the environment of the vehicle, wherein the sensor data indicative of motion and orientation of the vehicle comprises data indicative of the vehicle beginning a turning maneuver in a turning direction; and
adjusting the rate of rotation of the pointing direction of the LIDAR device based on the turning direction, wherein adjusting the rate of rotation of the pointing direction of the LIDAR device based on the turning direction comprises at least one of: (i) decreasing the rate of rotation based on the turning direction being the same as the direction of rotation; or (ii) increasing the rate of rotation based on the turning direction being opposite the direction of rotation.
13. The system of claim 12 , wherein the turning direction is the same as the direction of rotation, wherein decreasing the rate of rotation comprises decreasing the rate of rotation from a first rate of rotation to a second rate of rotation.
14. The system of claim 13 , wherein the operations further comprise:
receiving, from the one or more sensors, further sensor data indicative of motion and orientation of the vehicle relative to the environment of the vehicle, wherein the further sensor data indicative of motion and orientation of the vehicle comprises data indicative of the vehicle completing the turning maneuver; and
further adjusting the rate of rotation of the pointing direction of the LIDAR device, wherein further adjusting the rate of rotation of the pointing direction of the LIDAR device comprises increasing the rate of rotation from the second rate of rotation to the first rate of rotation.
15. The system of claim 12 , wherein the turning direction is opposite the direction of rotation, wherein increasing the rate of rotation comprises increasing the rate of rotation from a first rate of rotation to a second rate of rotation.
16. The system of claim 15 , further comprising:
receiving, from the one or more sensors, further sensor data indicative of motion and orientation of the vehicle relative to the environment of the vehicle, wherein the further sensor data indicative of motion and orientation of the vehicle comprises data indicative of the vehicle completing the turning maneuver; and
further adjusting the rate of rotation of the pointing direction of the LIDAR device, wherein further adjusting the rate of rotation of the pointing direction of the LIDAR device comprises decreasing the rate of rotation from the second rate of rotation to the first rate of rotation.
17. The system of claim 12 , wherein the sensor data indicative of motion and orientation of the vehicle further comprises data indicative of a rate of change to a yaw direction of the vehicle associated with the turning maneuver, and wherein adjusting the rate of rotation of the pointing direction of the LIDAR device is further based on the rate of change to the yaw direction of the vehicle.
18. The system of claim 12 , further comprising:
an actuator configured to rotate the LIDAR device, wherein adjusting the rate of rotation of the pointing direction of the LIDAR device comprises controlling the actuator.
19. The system of claim 12 , wherein adjusting the rate of rotation of the pointing direction of the LIDAR device comprises controlling optics within the LIDAR device.
20. The system of claim 12 , wherein the one or more sensors comprise at least one of an inertial measurement unit (IMU), a gyroscope, an accelerometer, or a compass.