APS BASED INTEGRATED SUN SENSOR
First Claim
1. An active pixel sensor based integrated sun sensor comprising:
- a diaphragm unit;
a detection unit;
a processing electronics unit; and
an interface unit;
wherein the diaphragm unit is operatively connected with the detection unit for forming a sunspots image; and
wherein the detection unit is configured for outputting a gray value of each pixel of the sunspots image;
wherein the processing electronics unit is operatively connected with the detector unit and the interface unit respectively for evaluating an attitude angle on the basis of the gray value and a coordinate of each pixel of the sunspots image; and
wherein the interface unit is operatively connected with a host computer for transferring an attitude angle to the host computer.
1 Assignment
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Accused Products
Abstract
The disclosure relates to an APS based integrated sun sensor comprising: a diaphragm unit, a detection unit, a processing electronics unit and an interface unit. The diaphragm unit is operatively connected with the detection unit for forming a sunspots image. The detection unit is configured for outputting a gray value of each pixel. The processing electronics unit is operatively connected with the detector unit and the interface unit respectively, for evaluating an attitude angle on the basis of the gray value and coordinate of each pixel. The interface unit is operatively connected with a host computer, for transferring the attitude angle to the host computer. This disclosure has such merits as high accuracy, wide FOV (Field of View), low power consumption, low weight, small size and high update rate.
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Citations
10 Claims
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1. An active pixel sensor based integrated sun sensor comprising:
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a diaphragm unit; a detection unit; a processing electronics unit; and an interface unit; wherein the diaphragm unit is operatively connected with the detection unit for forming a sunspots image; and
wherein the detection unit is configured for outputting a gray value of each pixel of the sunspots image;wherein the processing electronics unit is operatively connected with the detector unit and the interface unit respectively for evaluating an attitude angle on the basis of the gray value and a coordinate of each pixel of the sunspots image; and wherein the interface unit is operatively connected with a host computer for transferring an attitude angle to the host computer. - View Dependent Claims (2, 3, 4, 5)
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6. An attitude measurement method of an active pixel sensor based integrated sun sensor comprising the following steps:
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exposing sunlight on a complementary metal oxide semiconductor active pixel sensor detector such that the sunlight is incident on the complementary metal oxide semiconductor active pixel sensor detector through a diaphragm unit; outputting a gray value of each pixel by a detection unit; evaluating an attitude angle by a processing electronics unit on the basis of the gray value and a coordinate of each pixel; transferring an attitude angle to a host computer by an interface unit. - View Dependent Claims (7, 8, 9, 10)
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Specification