Core temperature estimation from skin and ambient temperature sensors using a dynamic model

A method of determining a body temperature of a subject, the method comprising:

• measuring, by a first temperature sensor, a plurality of skin temperatures of the subject at a plurality of time instants;
• measuring, by a second temperature sensor spaced apart from the first temperature sensor, a plurality of ambient temperatures at the plurality of time instants;
• storing the plurality of skin temperatures and the plurality of ambient temperatures in a memory device;
• obtaining, by a controller from the memory device, the plurality of skin temperatures and the plurality of ambient temperatures;
• and
• determining, by the controller based on a prediction model, the body temperature of the subject based on the plurality of skin temperatures and the plurality of ambient temperatures.

A non-transitory computer-readable storage medium storing instructions executable by one or more processors, the instructions, when executed by the one or more processors, cause the one or more processors to perform operations including:

• obtaining a plurality of skin temperatures of a subject measured at a plurality of time instants;
• obtaining a plurality of ambient temperatures measured at the plurality of time instants;
• and
• determining, based on a regression model that includes a set of regressors and corresponding weights, a body temperature of the subject based on the plurality of skin temperatures and the plurality of ambient temperatures.