APPARATUS FOR NON-TOUCH ESTIMATION OF BODY CORE TEMPERATURE FROM AN ANALOG INFRARED SENSOR AND BASED ON CUBIC RELATIONSHIP SPECIFIC FACTORS

摘要

In one implementation, an apparatus estimates body core temperature from an infrared measurement of an external source point using a cubic relationship between the body core temperature and the measurement of an external source point is described. In another implementation, a non-touch biologic detector estimates temperature from a digital infrared sensor and determines vital signs from a solid-state image transducer. In another implementation, a non-touch biologic detector determines vital signs from a solid-state image transducer and estimates body core temperature from an infrared measurement of an external source point using a cubic relationship between the body core temperature and the measurement of an external source point.

主权项

1. An apparatus to estimate a body core temperature from an external source point, the apparatus comprising:
a housing; an analog infrared sensor operably mounted to the housing, the analog infrared sensor being operable to receive electromagnetic energy from the external source point of a subject and operable to generate a numerical representation of the electromagnetic energy of the external source point; a microprocessor mounted in the housing, electrically coupled to the analog infrared sensor and operable to estimate the body core temperature of the subject from the numerical representation of the electromagnetic energy of the external source point,
wherein estimating the body core temperature of the subject further comprises:
calculating the body core temperature from the numerical representation of the electromagnetic energy of the external source point of the subject, a representation of an ambient air temperature reading, a representation of a calibration difference, and a representation of a bias in consideration of the temperature sensing mode,wherein calculating the body core temperature is based on a cubic relationship representing three thermal ranges between the numerical representation of the electromagnetic energy of the external source point and the body core temperature, wherein the cubic relationship includes a coefficient representative of different relationships between the external source point and the body core temperature in the three thermal ranges, wherein the cubic relationship is TB=ATSkin3+BTSkin2+CTSkin+D−E(TAmbient−75), TAmbientT2 and TB=ATSkin3+BTSkin2+CTSkin+D, T1