Machine sensor calibration system
First Claim
1. A sensor calibration system for a mobile machine, comprising:
- a positioning device configured to determine a desired sensing location on the mobile machine;
a calibration object;
a sensor configured to sense a characteristic of the calibration object from an actual sensing location on the mobile machine and to generate a corresponding signal; and
a controller in communication with the sensor and the positioning device, the controller being configured to;
compare the characteristic sensed from the actual sensing location to a known characteristic previously sensed from the desired sensing location;
determine a difference between the actual sensing location and the desired sensing location based on the comparison; and
correcting subsequent signals generated by the sensor based on the difference.
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Accused Products
Abstract
A sensor calibration system for a mobile machine is disclosed. The sensor calibration system may have a positioning device configured to determine a desired sensing location on the mobile machine, a calibration object, and a sensor configured to sense a characteristic of the calibration object from an actual sensing location on the mobile machine and to generate a corresponding signal. The sensor calibration system may also have a controller in communication with the sensor and the positioning device. The controller may be configured to compare the characteristic sensed from the actual sensing location to a known characteristic associated with the desired sensing location, and to determine a difference between the actual sensing location and the desired sensing location based on the comparison. The controller may further be configured to correct subsequent signals generated by the sensor based on the difference.
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Citations
20 Claims
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1. A sensor calibration system for a mobile machine, comprising:
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a positioning device configured to determine a desired sensing location on the mobile machine; a calibration object; a sensor configured to sense a characteristic of the calibration object from an actual sensing location on the mobile machine and to generate a corresponding signal; and a controller in communication with the sensor and the positioning device, the controller being configured to; compare the characteristic sensed from the actual sensing location to a known characteristic previously sensed from the desired sensing location; determine a difference between the actual sensing location and the desired sensing location based on the comparison; and correcting subsequent signals generated by the sensor based on the difference. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of calibrating a sensor mounted on a mobile machine, the method comprising:
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positioning the mobile machine proximate a calibration object; sensing a characteristic of the calibration object from an actual sensing location on the mobile machine; comparing the characteristic sensed from the actual sensing location to a known characteristic associated with a desired sensing location; determining a difference between the sensed characteristic and the known characteristic based on the comparison; and correcting subsequent sensor input received from the actual sensing location based on the difference. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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20. A mobile machine, comprising:
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a body; a traction device configured to propel the body; at least one sensor located at an actual sensing location on the body to sense a characteristic of a calibration object near the mobile machine; a positioning device configured to detect a position and an orientation of a reference location on the mobile machine; and a controller in communication with the at least one sensor and the positioning device, the controller being configured to; determine a desired sensing location as a function of the reference location; compare the characteristic sensed from the actual sensing location to a known characteristic associated with the desired sensing location; determine a difference between the actual sensing location and the desired sensing location based on the comparison; and correct subsequent signals generated by the at least one sensor based on the difference.
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Specification