Patent ID: 8306599

Claim:
A process for monitoring the status of body fluids of a person, the process comprising the steps of: providing a person with a piece of clothing with ventilating ducts; providing a first temperature sensor and a first moisture sensor positioned for measuring inlet flow into the piece of clothing with the first temperature sensor and with the first moisture sensor; providing a second temperature sensor and a second moisture sensor positioned for measuring outlet flow from the piece of clothing with the second temperature sensor and with the second moisture sensor; providing a pressure sensor in the inlet flow; providing a fan or a compressed-air source providing cooling air into the piece of clothing and to provide the inlet flow and the outlet flow; providing a measuring and analyzing unit connected to said first temperature sensor, said first moisture sensor, said second temperature sensor, said second moisture sensor, said pressure sensor and the fan or the compressed-air source; activating the fan or the compressed-air source; measuring pressure established at the air inlet in the inlet flow with the pressure sensor in the inlet flow; determining gas volume flow based on said measured pressure; measuring an inlet flow moisture content of the gas volume flow in the inlet flow with said first moisture sensor; measuring an outlet flow moisture content of the gas volume flow in the outlet flow with said second moisture sensor; determining moisture currently being fed and moisture currently being removed from the gas volume flow based on at least said gas volume flow, said inlet flow measured moisture content and said outlet flow moisture content; determining a loss of moisture by the person from a determined time integral of a difference between the moisture fed in and the moisture removed or from the difference between time integrals of the moisture fed in and the moisture removed, wherein said loss of moisture is compared to a limit value and an alarm signal is sent by the measuring and analyzing unit when the limit value is exceeded.