Body monitoring sensor system for use with articles of apparel of known clo index to ensure comfort under exposed atmospheric conditions

A body monitoring sensor system for use in combination with thermally insulated article of warmth having a known clo index representative of a thermal insulation value of said article of apparel, said body monitoring sensor system providing comfort to wearer person in predetermined environmental atmospheric conditions, said body monitoring sensor system comprising a sensor module having attachment means for attachment to an outer surface of said article of warmth;

• said sensor module including a wind velocity sensor, an ambient temperature sensor, a humidity sensor and a body temperature and humidity sensor for sensing body temperature inside said article of warmth which represents body temperature and humidity of said wearer person, said sensors generating output signals to a processor of a computer representative of actual wind velocity, ambient temperature and humidity, respectively and body temperature and humidity of said wearer person;
• said processor having a memory in which is inputted as a reference said known clo index representative of said thermal insulation value of said article of warmth, said memory having stored therein functions including formulations for calculating the actual clo index required for a wearer person to feel warm and comfortable under the actual atmospheric conditions as calculated from said output signals and including a wind chill temperature value calculation, and wherein one clo index value=0.155K×m2×W−1, and producing a calculated output clo count index signal value which it determined from said reference clo index of said article of warmth to produce one or more output information signals to said wearer person whereby said wearer person is made aware if said article of warmth is providing suitable warmth and comfort under said actual atmospheric conditions or if said wearer person is at a health risk or will be at a health risk in said actual atmospheric conditions, said processor generating an alarm information signal if said resulting clo index signal value is greater than said reference clo index of said article of warmth indicating a need for corrective action to prevent a health risk to said wearer person.