Precise, no-contact, position sensing using imaging
AssigneeHoneywell International Inc.
InventorAntony Kurth
Life of this patent
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Abstract
A contact free optical motion sensor for an inertial reference system. One or more image acquisition systems are adapted to produce a series of overlapping images of a gas bearing supported spherical inertial sensor assembly. A controller coupled to receive the series of overlapping images applies a delta detection algorithm to the series of overlapping images to determine the distance, the direction of movement of the inertial sensor assembly and the resulting relative position of the gas bearing supported spherical inertial sensor assembly. The controller further calculates the rotational velocity of the inertial sensor assembly based on a time sequence between the received series of image signals and the distance moved.
Claims17
A motion detection system comprising:
- one or more optical sensors, each optical sensor adapted to generate image signals of an object;
- and
- a controller coupled to receive the image signals from each optical sensor, the controller adapted to apply a delta detection algorithm to a series of the image signals to determine the distance and direction the object has moved, the controller further adapted to calculate the velocity of the object's movement based on a time sequence between the received series of image signals and the distance moved.
A motion detection system comprising:
- one or more image acquisition systems, each image acquisition system adapted to produce a series of overlapping images of the object;
- and
- a controller coupled to receive the series of overlapping images from each image acquisition system, the controller adapted to measure the elapsed time between images received in the series, the controller further adapted to apply a delta detection algorithm to the series of overlapping images to determine the distance and direction the object has moved, and further adapted to calculate the velocity of the object's movement based on the elapsed time between images and the distance moved.
A motion detection system comprising:
- one or more optical computer mouses, each optical computer mouse adapted to generate image signals of an object;
- a computer coupled to receive x-axis and y-axis displacement data communicated by the one or more optical computer mouses, the computer adapted to accumulate the x-axis and y-axis displacement data from the one or more optical computer mouses over a time interval, the computer further adapted to calculate at least one of the distance and direction of movement of the object, the average velocity of movement, and the resulting relative position of the object.
Dependencies are inferred from the claim text.