Review on human core body temperature measurement method

Temperature is one of the four vital signs of human health. To maintain a constant body temperature is the necessary condition to keep metabolism and normal life activities. The body temperature is a barometer for health. How to monitor the body temperature effectively is becoming an important topic recently. The temperature in clinical refers to the average core temperature. In our daily life, we usually measure the temperature of alar, mouth and forehead. However, the measured temperature is the body surface temperature in a strict way. Influenced by the surrounding environment and personal factors, there is an error between body surface temperature and body core temperature. In order to solve the problem, this paper analyzed the monitoring and research status of core body temperature at home and abroad and divided the methods into two parts. The first part is to measure temperature data directly, replace the core body temperature by the body surface temperature within a certain error range. The second part is to estimate temperature data indirectly, use the body surface temperature or some physiological data such as heart rate to set up a modeling and calculate the actual temperature inside the human body. Then the paper analyzed the accuracy of each method and compared the advantages and disadvantages of each method. At the last, the paper analyzed the development tendency of the core body temperature monitoring method in the future.