Sensor verifier and method

Patent metadata

Field	Value
Publication number	US-12380299-B2
Application number	US-202117524977-A
Country	US
Kind code	B2
Filing date	Nov 12, 2021
Priority date	Nov 12, 2021
Publication date	Aug 5, 2025
Grant date	Aug 5, 2025

Abstract

A device may include an image sensor, configured to generate image sensor data representing a vicinity of the device; an image processor, configured to generate a first code from the image sensor data using a code generation protocol; an input validity checker, configured to compare the first code to a second code; and if a similarity of the first code and the second code is within a predetermined range, operate according to a first operational mode; and if the similarity of the first code and the second code is not within the predetermined range, operate according to a second operational mode.

First claim

What is claimed is:

1. A device comprising:
an image sensor, configured to generate image sensor data representing a vicinity of the device;
an image processor, configured to:
generate a first code from the image sensor data using a code generation protocol;

an input validity checker, configured to:
compare the first code to a second code; and
if a similarity of the first code and the second code is within a predetermined range, operate according to a first operational mode; and
if the similarity of the first code and the second code is not within the predetermined range, operate according to a second operational mode;

wherein the second code comprises a code representing a testing pattern, and wherein the testing pattern comprises a modulated ambient variable; and
wherein the modulated ambient variable is an ambient lighting pattern, an ambient sound pattern, a projection of a visual pattern, or a disappearance of a visual pattern.

2. The device of claim 1 , wherein the second code is a preprogrammed code, stored locally on the device.

3. The device of claim 2 , further comprising a code generation schedule, for which the second code is valid; wherein the image processor is further configured to generate the first code according to the code generation schedule.

4. The device of claim 1 , wherein the device further comprises a receiver, configured to receive a signal representing the second code; and wherein the input validity checker comparing the first code to the second code comprises the input validity checker comparing the first code from the image sensor data to the second code from the received signal.

5. The device of claim 1 , wherein the image processor is further configured to distinguish within the image sensor data, image sensor data corresponding to a first range of electromagnetic wavelengths from image sensor data corresponding to a second range of electromagnetic wavelengths, different from the first range of electromagnetic wavelengths, and wherein the input validity checker generating the first code from the image sensor data with the code generation protocol comprises the input validity checker generating the first code from the image sensor data corresponding to the first range of electromagnetic wavelengths.

6. The device of claim 5 , wherein the input validity checker generating the first code from the image sensor data with the code generation protocol further comprises the input validity checker not generating the first code from the image sensor data corresponding to the second range of electromagnetic wavelengths.

7. The device of claim 5 , wherein the first range of electromagnetic wavelengths comprises wavelengths between approximately 750 nm and 2,500 nm.

8. The device of claim 1 , wherein the code generation protocol comprises assigning a first value to an image frame with a brightness above a predetermined threshold, and assigning a second value, different from the first value, to an image frame with a brightness below a threshold value.

9. The device of claim 1 , wherein the code generation protocol comprises decoding a symbol in an image frame.

10. The device of claim 1 , wherein operating the input validity checker according to the first operational mode comprises sending a signal representing a determination that the image sensor and/or the image processor is functioning acceptably, and wherein the input validity checker operating according to the second operational mode comprises sending a signal representing an impaired function of the image sensor and/or the image processor.

11. The device of claim 1 , wherein the predetermined range is identity of the first code and the second code.

12. The device of claim 1 , wherein the device is configured as a robot.

13. A device comprising:
a processor, configured to:
send a first signal representing an instruction to control a lighting device according to a second code;
receive a first code from a device, the first code representing a code generation protocol as applied to detected image sensor data;
compare the first code to the second code; and
if a similarity of the first code and the second code is within a predetermined range, operate according to a first operational mode; and
if the similarity of the first code and the second code is not within the predetermined range, operate according to a second operational mode;

wherein the second code comprises a code representing a testing pattern, and wherein the testing pattern comprises a modulated ambient variable; and
wherein the modulated ambient variable is an ambient lighting pattern, an ambient sound pattern, a projection of a visual pattern, or a disappearance of a visual pattern.

14. The device of claim 13 , wherein the device further comprises a receiver, and wherein receiving the first code from the device comprises wirelessly receiving a signal representing the first code via the receiver.

15. The device of claim 13 , wherein the processor controlling the lighting device according to the second code comprises controlling the lighting device to generate a temporal pattern.

16. A device comprising:
a means for generating sensor data representing a vicinity of the device;
a means for generating a first code from the sensor data using a code generation protocol; and
a means for comparing the first code to a second code;
wherein if a similarity of the first code and the second code is within a predetermined range, the means for comparing the first code to the second code is configured to operate according to a first operational mode; and
if the similarity of the first code and the second code is not within the predetermined range, the means for comparing the first code to the second code is configured to operate according to a second operational mode;
wherein the second code comprises a code representing a testing pattern, and wherein the testing pattern comprises a modulated ambient variable; and
wherein the modulated ambient variable is an ambient lighting pattern, an ambient sound pattern, a projection of a visual pattern, or a disappearance of a visual pattern.

17. The device of claim 16 , wherein the second code is a preprogrammed code, stored locally on the device.

18. The device of claim 16 , wherein the device further comprises a receiving means for receiving a signal representing the second code; and wherein the means for comparing the first code to the second code is configured to compare the first code from the sensor data to the second code received from the receiving means.

19. The device of claim 16 , wherein the means for generating the first code from the sensor data is further configured to distinguish within the sensor data, sensor data corresponding to a first range of electromagnetic wavelengths from sensor data corresponding to a second range of electromagnetic wavelengths, different from the first range of electromagnetic wavelengths, and wherein generating the first code from the sensor data with the code generation protocol comprises generating the first code from the sensor data corresponding to the first range of electromagnetic wavelengths.

20. The device of claim 16 , wherein the code generation protocol comprises the means for generating the first code from the sensor data assigning a first value to an image frame with a brightness above a predetermined threshold, and assigning a second value, different from the first value, to an image frame with a brightness below a threshold value.

Assignees

• Intel Corp

Inventors

• Peng Yang
• Stoeffler Norbert
• Paulitsch Michael

Classifications

• G06F18/22

  Matching criteria, e.g. proximity measures · CPC title

• G06V10/20

  Image preprocessing · CPC title

• B25J9/1697

  Vision controlled systems · CPC title

• G06V10/993

  Evaluation of the quality of the acquired pattern · CPC title

• G06V10/145

  Illumination specially adapted for pattern recognition, e.g. using gratings · CPC title