Machine sensor calibration system
First Claim
1. A sensor calibration system for a mobile machine, comprising:
- a first machine mounted sensor disposed on the mobile machine and configured to sense a characteristic of an offboard object and to generate a corresponding signal;
a second machine mounted sensor disposed on the mobile machine and configured to sense the characteristic of the offboard object and to generate a corresponding signal;
a machine mounted positioning device configured to determine a machine heading during the characteristic sensing of the first and second machine mounted sensors, wherein the characteristic of the offboard object is a position of the offboard object with respect to the machine heading; and
a controller in communication with the first and second machine mounted sensors and the machine mounted positioning device, the controller being configured to;
compare the characteristic of the offboard object as sensed by the first machine mounted sensor to the characteristic of the offboard object as sensed by the second machine mounted sensor; and
correct subsequent signals received from the first machine mounted sensor based on the comparison.
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Accused Products
Abstract
A sensor calibration system for a mobile machine is disclosed. The sensor calibration system may have a first machine mounted sensor disposed on the mobile machine and configured to sense a characteristic of an offboard object and to generate a corresponding signal, and a second machine mounted sensor disposed on the mobile machine and configured to sense the characteristic of the offboard object and to generate a corresponding signal. The sensor calibration system may also have a controller in communication with the first and second machine mounted sensors. The controller may be configured to compare the characteristic of the offboard object as sensed by the first machine mounted sensor to the characteristic of the offboard object as sensed by the second machine mounted sensor, and to correct subsequent signals received from the first machine mounted sensor based on the comparison.
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Citations
19 Claims
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1. A sensor calibration system for a mobile machine, comprising:
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a first machine mounted sensor disposed on the mobile machine and configured to sense a characteristic of an offboard object and to generate a corresponding signal; a second machine mounted sensor disposed on the mobile machine and configured to sense the characteristic of the offboard object and to generate a corresponding signal; a machine mounted positioning device configured to determine a machine heading during the characteristic sensing of the first and second machine mounted sensors, wherein the characteristic of the offboard object is a position of the offboard object with respect to the machine heading; and a controller in communication with the first and second machine mounted sensors and the machine mounted positioning device, the controller being configured to; compare the characteristic of the offboard object as sensed by the first machine mounted sensor to the characteristic of the offboard object as sensed by the second machine mounted sensor; and correct subsequent signals received from the first machine mounted sensor based on the comparison. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A sensor calibration system, comprising:
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a first sensor mounted on a mobile machine and configured to sense a characteristic of an object at a worksite; a second sensor mounted on the mobile machine and configured to sense the characteristic of the object; a positioning device configured to indicate a position of the mobile machine at the worksite; and a controller in communication with the first sensor, the second sensor, and the positioning device, the controller being configured to; compare the characteristic of the object as sensed by the first sensor to the characteristic of the object as sensed by the second sensor when the positioning device indicates the mobile machine is at a first worksite location; and correct subsequent signals received from the first sensor based on the comparison. - View Dependent Claims (13, 14, 15, 16)
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17. A method of calibrating object sensing, the method comprising:
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sensing a characteristic of an object with a first sensor mounted on a mobile machine at a worksite; sensing the characteristic of the object with a second sensor mounted on the mobile machine; sensing a position of the mobile machine at the worksite with a positioning device; comparing the characteristic of the object as sensed by the first sensor to the characteristic of the object as sensed by the second sensor when the position of the mobile machine is at a first worksite location; and correcting subsequent characteristics sensed by the first sensor based on the comparison. - View Dependent Claims (18, 19)
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Specification