摘要 |
Temperature, relative humidity and air quality define comfort indoors. Individuals judge comfort by how the environment feels and smells. Heating, ventilation and air conditioning (HVAC) equipments are used to control the indoor climate and thereby control comfort. Most homes and offices are normally equipped with just a sensor to show the temperature level. It is rare to find humidity sensors and temperature sensors in every room in homes and offices so controlling the environment locally is not possible. Air quality, another parameter that influences comfort, is measured by the presence of volatile organic compounds or particles that can now be identified using more sophisticated monitors. An invention is described here that will make it easy and affordable to measure and control the temperature, relative humidity and air quality using a smart phone, that is commonplace now, thereby controlling the comfort level. |