An indoor comfortable healthy environment radiation-controlling air-conditioning system based on infrared sensing technology, mainly composed of an outdoor unit (1) for an air source heat pump, an indoor plate type evaporator (2) of the air source heat pump, a circulating water pump (3), a water mixing adjusting valve (4), a water mixing pump (5), an indoor fin type evaporator (6) of the air source heat pump, an indoor fin type condenser (7) of the air source heat pump, a fan (8), a wind valve (9), a vertical surface-type humidifying fan coil (10), a radiation floor (11), an air outlet (12), a radiation top plate (13), a fresh wind supply opening (14), a wind speed sensor (15), a temperature sensor (16) and an infrared sensor (17). By additionally arranging an indoor dehumidifying tail end, the air humidity is precisely controlled, and the radiation heat exchange effect of a radiation cold supply tail end and the surface of a human body is improved; precise control over the surface temperature of the human body and a comfortable level is thus achieved. The number of indoor personnel and required fresh air quantity are obtained using the infrared sensing technology. The indoor temperature is decoupled, the air freshness degree is controlled, the fresh air supply temperature and humidity are regulated, and thus precise control over the indoor fresh air quantity and healthiness is achieved.
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