DYNAMIC SENSOR SELECTION FOR SELF-DRIVING VEHICLES

• US 20180272963A1
• Filed: 03/23/2017
• Published: 09/27/2018
• Est. Priority Date: 03/23/2017
• Status: Active Grant

• Current Assignee: Uatc, LLC (Uber Technologies, Inc.)
• Original Assignee: Uber Technologies, Inc.
• Inventors: Meyhofer, Eric, Rice, David, Boehmke, Scott, Wellington, Carl
• Granted Patent: US 10,479,376 B2
• Time in Patent Office: Days
• CPC Class Codes: B60W 50/023 Avoiding failures by using redundant parts
• CPC Class Codes: G01C 21/30 Map- or contour-matching
• CPC Class Codes: G01S 13/862 Combination of radar systems with sonar systems
• CPC Class Codes: G01S 13/865 Combination of radar systems with lidar systems
• CPC Class Codes: G01S 13/867 Combination of radar systems with cameras
• CPC Class Codes: G01S 13/931 of land vehicles
• CPC Class Codes: G01S 17/931 of land vehicles
• CPC Class Codes: G01S 2013/9316 combined with communication equipment with other vehicles or with base stations
• CPC Class Codes: G01S 2013/932 using own vehicle data, e.g. ground speed, steering wheel direction
• CPC Class Codes: G01S 2013/9322 using additional data, e.g. driver condition, road state or weather data
• CPC Class Codes: G05D 1/024 in combination with a laser lasers per se H01S
• CPC Class Codes: G05D 1/0251 extracting 3D information from a plurality of images taken from different locations, e.g. stereo vision stereoscopic image analysis H04N13/00; depth recovery from images G06T7/593

Abstract

A self-driving vehicle (SDV) can operate by analyzing sensor data to autonomously control acceleration, braking, and steering systems of the SDV along a current route. The SDV includes a number of sensors generating the sensor data and a control system to detect conditions relating to the operation of the SDV, such as vehicle speed and local weather, select a set of sensors based on the detected conditions, and prioritize the sensor data generated from the selected set of sensors to control aspects relating to the operation of the SDV.

Claims

1. A self-driving vehicle (SDV) comprising:

a plurality of sensors generating sensor data; and

a control system to execute instructions that cause the control system to;

detect one or more conditions relating to an operation of the SDV;

select a set of sensors from the plurality of sensors based on the detected one or more conditions; and

prioritize the sensor data generated from the selected set of sensors to control one or more aspects relating to the operation of the SDV.

2. The SDV of claim 1, wherein detecting the one or more conditions includes receiving contextual information from a network service over a network.

3. The SDV of claim 1, wherein the control system detects the one or more conditions by analyzing the sensor data.

4. The SDV of claim 1, wherein the one or more conditions relating to the operation of the SDV include weather conditions, current speed of the SDV, time of day, ambient lighting, and road conditions.

5. The SDV of claim 1, wherein a plurality of sensor priority rules are applied to the detected one or more conditions to select the set of sensors.

6. The SDV of claim 5, wherein the plurality of sensor priority rules include one or more weights to apply to the sensor data from one or more of the plurality of sensors, and the control system prioritizes the sensor data based on the one or more weights.

7. The SDV of claim 6, wherein the plurality of sensor priority rules and/or the one or more weights are based on performance characteristics of each of the plurality of sensors in a plurality of conditions relating to the operation of the SDV.

8. The SDV of claim 1, wherein the one or more aspects relating to the operation of the SDV include detecting one or more objects in an environment around the SDV.

9. The SDV of claim 8, wherein the control system prioritizes the sensor data generated from the selected set of sensors to assign an object classification to each of the one or more objects.

10. The SDV of claim 1, wherein the one or more aspects relating to the operation of the SDV include localization, prediction, and motion planning.

11. A non-transitory computer readable medium storing instructions that, when executed by a control system of a self-driving vehicle (SDV), cause the control system to:

detect one or more conditions relating to an operation of the SDV;

select a set of sensors from a plurality of sensors based on the detected one or more conditions; and

prioritize sensor data generated from the selected set of sensors to control one or more aspects relating to the operation of the SDV.

12. The non-transitory computer readable medium of claim 11, wherein detecting the one or more conditions includes receiving contextual information from a network service over a network.

13. The non-transitory computer readable medium of claim 11, wherein the control system detects the one or more conditions by analyzing the sensor data.

14. The non-transitory computer readable medium of claim 11, wherein the one or more conditions relating to the operation of the SDV include weather conditions, current speed of the SDV, time of day, ambient lighting, and road conditions.

15. The non-transitory computer readable medium of claim 11, wherein a plurality of sensor priority rules are applied to the detected one or more conditions to select the set of sensors.

16. The non-transitory computer readable medium of claim 15, wherein the plurality of sensor priority rules include one or more weights to apply to the sensor data from one or more of the plurality of sensors, and the control system prioritizes the sensor data based on the one or more weights.

17. The non-transitory computer readable medium of claim 16, wherein the plurality of sensor priority rules and/or the one or more weights are based on performance characteristics of each of the plurality of sensors in a plurality of conditions relating to the operation of the SDV.

18. The non-transitory computer readable medium of claim 11, wherein the one or more aspects relating to the operation of the SDV include detecting one or more objects in an environment around the SDV.

19. The non-transitory computer readable medium of claim 18, wherein the control system prioritizes the sensor data generated from the selected set of sensors to assign an object classification to each of the one or more objects.

20. A computer-implemented method of operating a self-driving vehicle (SDV), the method being performed by a control system of the SDV and comprising:

detecting one or more conditions relating to an operation of the SDV;

selecting a set of sensors from a plurality of sensors based on the detected one or more conditions; and

prioritizing sensor data generated from the selected set of sensors to control one or more aspects relating to the operation of the SDV.