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APPARATUS FOR NON-TOUCH ESTIMATION OF BODY CORE TEMPERATURE BASED ON CUBIC RELATIONSHIP SPECIFIC FACTORS

  • US 20160073908A1
  • Filed: 09/14/2014
  • Published: 03/17/2016
  • Est. Priority Date: 09/13/2014
  • Status: Abandoned Application
First Claim
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1. An apparatus to estimate a body core temperature from an external source point, the apparatus comprising:

  • a housing;

    an non-touch electromagnetic sensor operably mounted to the housing, the non-touch electromagnetic 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 non-touch electromagnetic 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), TAmbient<

    T1 or TAmbient>

    T2 and TB=ATSkin3+BTSkin2+CTSkin+D, T1<

    TAmbient<

    T2 where TB is the body core temperature, Tskin is the numerical representation of the electromagnetic energy of the external source point, A is 0.0002299688, B is −

    0.0464237524, C is 3.05944877, D is 31.36205 and E is 0.135, where Tambient is the ambient temperature, where T1 and T2 are boundaries between the three thermal ranges and T1 and T2 are selected from a group of pairs of ambient temperatures consisting of 67°

    F. and 82°

    F.;

    87°

    F. and 95°

    F.; and

    86°

    F. and 101°

    F.;

    a button operably coupled to the microprocessor; and

    a display device operably coupled to the microprocessor that is operable to display the body core temperature.

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