Abstract
Temperature, humidity and has close relation with the human production
and living, especially in medicine, electronics, electric power, aerospace,
food fermentation, the requirements for temperature and humidity in areas
such as agricultural production is particularly strict, is the most common is
the most basic parameters, such as machinery, electronics, petroleum,
chemical industry etc widely needed in real-time detection and control of
temperature, humidity. And as people living standard rise, people for their
own survival environment more and more attention. And the body's comfort
level with the change of temperature and humidity in the air and mood has a
direct effect, so the detection and control of the temperature humidity is very
necessary.
Using a STC89C52 single-chip microcomputer temperature and
humidity monitoring alarm system, can real-time accurate reaction inside and
outside the greenhouse temperature and humidity changes. Finish such as
heating up to a specific temperature and cooling to a specific temperature. In
upper and lower temperature range constant temperature control of a variety
of ways, so in terms of humidity control. Will no doubt of this system is
applied to the greenhouse for vegetation growth provide a more comfortable
environment. For greenhouses planting and flower beds, flower cultivation,
must be installed in some specific environment to monitor the temperature
and humidity devices. This system can timely and accurately reflect the
change of indoor and outdoor temperature and humidity, can satisfy the
requirement of the temperature and humidity control.
Keywords: Temperature and humidity, monitoring, STC89S52
