Driver visual sensor behavior study device

Patent metadata

Field	Value
Publication number	US-9798941-B2
Application number	US-201514661613-A
Country	US
Kind code	B2
Filing date	Mar 18, 2015
Priority date	Mar 18, 2015
Publication date	Oct 24, 2017
Grant date	Oct 24, 2017

Abstract

A sensor test system may include a controller coupled to at least one test device and a sensor, the controller configured to receive test instructions including a plurality of test sequences, instruct at least one display unit to display an item based on the test sequences, receive response data from the test device indicative of a driver behavior, the response data including timing information and test device information, compile the response data based on the timing information and the test device information, receive sensor data acquired by the sensor during the test sequences, compare the compiled response data to the sensor data, and determine an accuracy of the sensor based on the comparison.

First claim

What is claimed is:

1. A sensor test system comprising:
a controller coupled to at least one test device and a sensor, the controller configured to:
receive test instructions including a plurality of test sequences;
instruct at least one display unit to display an item based on the test sequences;
receive response data from the test device indicative of a driver behavior, the response data including timing information, test device information, and at least one first head position and first looking direction;
compile the response data based on the timing information and the test device information;
receive sensor data acquired by the sensor during the test sequences;
compare the compiled response data to the sensor data, wherein the first head position and first looking direction of the response data are compared to a second head position and second looking direction of the sensor data; and
determine an accuracy of the sensor based on the comparison.

2. The system of claim 1 , wherein the controller is further configured to instruct a speaker to emit audio instructions indicative of a desired driver behavior based on the test instructions.

3. The system of claim 1 , wherein the response data includes an audio response acquired at a microphone and timing information acquired from a timing device.

4. The system of claim 1 , wherein the sensor is a vision sensor.

5. A vehicle system comprising:
a controller coupled to at least one test device and a sensor, the controller configured to:
instruct at least one display unit to display an item;
receive, from a test device, response data,
compare a head position and looking direction of the response data to a head position and looking direction of the sensor data provided by the sensor; and
determine an accuracy of the sensor based on the comparison.

6. The system of claim 5 , wherein the response data includes reference data received from a reference device, and includes at least one of an audible response, timing data, and imaging data.

7. The system of claim 6 , wherein the reference device includes at least one of a vehicle camera, a microphone and a timing device.

8. The system of claim 5 , wherein the controller is further configured to instruct a speaker to emit audio instructions indicative of a desired driver behavior.

9. The system of claim 5 , wherein the at least one display unit includes a plurality of display units arranged within a vehicle cabin.

10. The system of claim 5 , wherein the controller is configured to instruct one of the display units to illuminate for a predefined amount of time.

11. The system of claim 5 , wherein the controller is further configured to instruct one of the display units to display a randomly generated image.

12. The system of claim 11 , wherein the response data includes at least one audible response received at a microphone indicative of the randomly generated image.

13. The system of claim 5 , wherein the controller is further configured to receive timing information from a timing device.

14. A vehicle sensor test system comprising:
a controller coupled to a first sensor and a second sensor, the controller configured to compare first data from the first sensor indicative of at least one head position and looking direction of a user with second data from the second sensor indicative of a driver gaze direction and determine an accuracy of the second sensor based on the comparison.

15. The system of claim 14 , wherein the controller is further configured to determine an accuracy of the second sensor based on additional reference data received from reference devices including at least one of a camera, a timing device and a microphone.

16. The system of claim 15 , wherein the reference data includes at least one of imaging data, timing data and audio data.

Assignees

• Ford Global Tech Llc

Inventors

• Le Jialiang
• Rao Manoharprasad K
• Li Lingxi
• Tian Renran

Classifications

• G06F3/167 Primary

  Audio in a user interface, e.g. using voice commands for navigating, audio feedback · CPC title

• G06V10/7796

  based on specific statistical tests · CPC title

• G06V20/597 Primary

  Recognising the driver's state or behaviour, e.g. attention or drowsiness · CPC title

• B60W2540/221

  Physiology, e.g. weight, heartbeat, health or special needs · CPC title

• B61B5/00

  Elevated railway systems without suspended vehicles (with monorail B61B13/04; tracks therefor E01B25/00) · CPC title