SYSTEM AND METHOD FOR MOBILE PLATFORM OPERATION
First Claim
1. A method for operating a mobile platform, comprising:
- measuring a distance between the mobile platform and an obstacle via time-of-flight sensing or ultrasound sensing;
measuring a speed of the mobile platform; and
controlling the mobile platform according to the measured distance and the measured speed.
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Abstract
A system for operating a mobile platform using distance and speed information and methods for making and using same. The system includes a time-of-flight sensor and an ultrasound sensor for measuring a distance between the mobile platform and an obstacle and a processor for integrating the sensed measurements and controlling the mobile platform. The distance measured by the time-of-flight sensor can be determined via a phase shift method. The time-of-flight sensor can also be used to measure a speed of the mobile platform by imaging a reference point at different times and using stereopsis to ascertain the displacement. Distances and speeds measured using the time-of-flight and ultrasound sensors can be integrated to improve measurement accuracy. The systems and methods are suitable for use in controlling any type of mobile platform, including unmanned aerial vehicles and advantageously can be applied for avoiding collisions between the mobile platform and the obstacle.
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Citations
30 Claims
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1. A method for operating a mobile platform, comprising:
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measuring a distance between the mobile platform and an obstacle via time-of-flight sensing or ultrasound sensing; measuring a speed of the mobile platform; and controlling the mobile platform according to the measured distance and the measured speed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A system for operating a mobile platform, comprising:
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a time-of-flight sensor for sensing an operating environment of the mobile platform; an ultrasound sensor for sensing the operating environment; and a processor configured to; determine a distance between the mobile platform and an obstacle in the operating environment using at least one of the time-of-flight sensor and the ultrasound sensor; and control the mobile platform according to the measured distance and a speed of the mobile platform. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. An apparatus, comprising:
one or more processors configured for; determining a distance between a mobile platform and an obstacle via time-of-flight sensing or ultrasound sensing; determining a speed of the mobile platform via stereopsis; and automatically adjusting the speed of the mobile platform to avoid the obstacle according the determined distance and the determined speed.
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30. A non-transitory readable medium with instructions stored thereon that, when executed by a processor, perform the steps comprising:
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determining a distance between a mobile platform and an obstacle via time-of-flight sensing or ultrasound sensing; determining a speed of the mobile platform; and controlling the mobile platform according to the determined distance and the determined speed.
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Specification