Water Circulation Cooling Suit Based on Microcontroller Control

When power grid personnel perform outdoor operations, the physiological function of people in high temperature environments will be abnormal or changed, and in serious cases, it will lead to heat stroke, if not timely rescue, it is more likely to lead to sudden death. In order to reduce the harm of high temperature environment to outdoor power grid operators, a new type of water cycle cooling clothing is designed, which adds automatic temperature control system and semiconductor refrigeration on the basis of traditional water cycle cooling clothing. The cooling coat uses PID algorithm combined with PWM modulation of single chip microcomputer. STC89C52 single chip microcomputer is used as the control core of the cooling coat. PID algorithm is combined with power electronics technology to achieve different cooling effects by controlling the flow rate of the pump. The experimental research shows that the designed cooling clothing has a cooling time of about 100 min, and the temperature difference with the environment can reach 12 ℃, which has a good cooling effect.