System and method for diagnosis of lighting system

Patent metadata

Field	Value
Publication number	US-10311599-B2
Application number	US-201615342459-A
Country	US
Kind code	B2
Filing date	Nov 3, 2016
Priority date	Nov 3, 2016
Publication date	Jun 4, 2019
Grant date	Jun 4, 2019

Abstract

A control system for a hybrid machine is provided. The control system includes a controller communicably coupled to an energy storage unit of the hybrid machine. The controller is configured to receive data from the energy storage unit. The controller is configured to evaluate a current storage charge state of the energy storage unit based on the received data. The controller is configured to receive historical data related to idle events associated with an engine of the hybrid machine. The controller is configured to receive data related to one or more machine operating parameters. The controller is configured to pre-emptively control at least one of an engine speed and an engine power based on the received data for at least one of shutting down the engine during an idle state and restarting the engine.

First claim

What is claimed is:

1. A diagnostic system for a lighting system of a machine, the diagnostic system comprising:
an image capturing device configured to generate an image feed of light cast by the lighting system; and
a controller, communicably coupled to the image capturing device, configured to:
receive, from the image capturing device, the image feed of the light cast by the lighting system;
analyze the image feed to detect dark pixels that are present in the image feed,
the dark pixels being formed by insufficient light cast by the lighting system;

determine if a number of the dark pixels within an area satisfies a threshold based on detecting the dark pixels; and
provide an alert if the number of the dark pixels satisfies the threshold.

2. The diagnostic system of claim 1 ,
wherein the controller is communicably coupled to an output unit, and
wherein the output unit is configured to generate the alert.

3. The diagnostic system of claim 1 , wherein the controller is further configured to:
segment the image feed into a plurality of sections, such that the controller is configured to analyze each of the plurality of sections.

4. The diagnostic system of claim 1 , wherein the dark pixels are detected based on a comparison of each of a plurality of pixels, of the image feed, with a predetermined value.

5. The diagnostic system of claim 1 , wherein a dark pixel, of the dark pixels, is detected if a light intensity of a corresponding pixel of the image feed, is less than a particular value.

6. The diagnostic system of claim 1 , wherein the controller is further configured to correlate a position of the dark pixels with a corresponding light source of the lighting system.

7. The diagnostic system of claim 6 , wherein the controller is further configured to identify a location of the corresponding light source based on correlating the position of the dark pixels with the corresponding light source.

8. The diagnostic system of claim 7 , wherein the controller is further configured to provide a notification of the location of the corresponding light source.

9. The diagnostic system of claim 1 , wherein the diagnostic system is activated manually.

10. A method associated with a lighting system of a machine, the method comprising:
receiving, by a controller and from an image capturing device, an image feed of light cast by the lighting system;
analyzing, by the controller, the image feed to detect dark pixels that are present in the image feed,
the dark pixels being formed by insufficient light cast by the lighting system;

determining, by the controller, if a number of the dark pixels within an area satisfies a threshold based on detecting the dark pixels; and
providing, by the controller, an alert if the number of the dark pixels satisfies the threshold.

11. The method of claim 10 , further comprising:
segmenting, by the controller, the image feed into a plurality of sections for analyzing each of the plurality of sections of the image feed.

12. The method of claim 10 , wherein the dark pixels are detected based on a comparison of each of a plurality of pixels, of the image feed, with a predetermined value.

13. The method of claim 10 , wherein a dark pixel, of the dark pixels, is detected if a light intensity of a corresponding pixel, of the image feed, is less than a particular value.

14. The method of claim 10 , further comprising:
correlating, by the controller, a position of the dark pixels in the image feed with a corresponding light source of the lighting system.

15. The method of claim 14 , further comprising:
identifying, by the controller, a location of the corresponding light source based on correlating the position of the dark pixels with the corresponding light source.

16. The method of claim 15 , further comprising:
providing, by the controller, a notification of the location of the corresponding light source.

17. A machine comprising:
an engine;
a frame;
a lighting system associated with the machine;
an image capturing device configured to generate an image feed of light cast by the lighting system; and
a controller, communicably coupled to the image capturing device, configured to:
receive, from the image capturing device, the image feed of the light cast by the lighting system;
analyze the image feed to detect dial dark pixels that are present in the image feed,
the dark pixels being formed by insufficient light cast by the lighting system;

determine if a number of the dark pixels within an area satisfies a threshold based on detecting the dark pixels; and
provide an alert if the number of the dark pixels satisfies the threshold.

18. The machine of claim 17 ,
wherein the controller is communicably coupled to an output unit, and
wherein the output unit is configured to generate the alert.

19. The machine of claim 17 , wherein the dark pixels are detected based on a comparison of each of a plurality of pixels, of the image feed, with a predetermined value.

20. The machine of claim 17 , wherein a dark pixel, of the dark pixels, is detected if a light intensity of a corresponding pixel, of the image feed, is less than a particular value.

Assignees

• Caterpillar Inc

Inventors

• Ali Hassan
• Maley Jacob Charles

Classifications

• H05B47/20

  Responsive to malfunctions or to light source life; for protection · CPC title

• G06T2207/30168

  Image quality inspection · CPC title

• G06T2207/30252

  Vehicle exterior; Vicinity of vehicle · CPC title

• G06T2207/20021

  Dividing image into blocks, subimages or windows · CPC title

• G06T7/0004 Primary

  Industrial image inspection · CPC title