UV dosimetry system with sensor data correction
First Claim
1. A device comprising:
- a UV sensing unit configured to measure an irradiating UV intensity;
a shade detector embedded within the device configured to detect if a user of the device is in a shaded condition or an unshaded condition; and
a computing unit adapted to correct the measured irradiating UV intensity if the user is determined to be in the unshaded condition;
wherein the shade detector comprises a temperature sensor configured to measure an ambient temperature, and the computing unit is adapted to detect a change of the user'"'"'s environment if a newly measured ambient temperature is determined to deviate significantly from a trend of recently measured ambient temperature.
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Abstract
A UV exposure dosimetry system includes at least one UV sensor that accurately measures the UV irradiance intensity. The system can generate extrapolated UV intensity data based on measured UV intensity data to correct unreliable UV measurement due to inconsistent irradiation of UV light. The UV dosimetry system integrates the extrapolated UV intensity data over time to calculate the real-time UV dosage and the vitamin D production by taking into account factors comprising UV sensor location, body surface area, clothing coverage, and sunscreen usage. Based on the measurement, the system can predict the time remaining to skin burn and the time remaining to reach daily goal of vitamin D production. The UV dosimetry system supports multi-user control through an advanced and user friendly input and output interface.
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Citations
20 Claims
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1. A device comprising:
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a UV sensing unit configured to measure an irradiating UV intensity; a shade detector embedded within the device configured to detect if a user of the device is in a shaded condition or an unshaded condition; and a computing unit adapted to correct the measured irradiating UV intensity if the user is determined to be in the unshaded condition; wherein the shade detector comprises a temperature sensor configured to measure an ambient temperature, and the computing unit is adapted to detect a change of the user'"'"'s environment if a newly measured ambient temperature is determined to deviate significantly from a trend of recently measured ambient temperature. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A non-transitory computer readable medium having computer executable instructions stored thereon, said instructions control at least one processor to implement a method, the method comprising:
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measuring a UV intensity irradiating on a device; measuring an ambient temperature using a temperature senor embedded within the device; detecting if a user of the device is in a shaded condition or an unshaded condition based on at least the measured ambient temperature; and correcting the measured irradiating UV intensity if the user is detected to be in the unshaded condition. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A system comprising:
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a wearable unit configured to measure an irradiating UV intensity; a temperature sensing unit embedded within the wearable unit and configured to measure an ambient temperature; and a mobile computing unit configured to; receive the measured UV intensity and the measured ambient temperature; detect if a user of the system is in a shaded condition or an unshaded condition at least partially based on the measured ambient temperature; and correct the measured irradiating UV intensity if the user is detected to be in an unshaded condition. - View Dependent Claims (17, 18, 19, 20)
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Specification