In this paper
Greenhouse is essential for modern agriculture basic equipment,
use it to effectively control, such as temperature, light, humidity,
carbon dioxide concentration is to change the plant growth
environment, create the best condition for plant growth, avoid the
seasons changeand the influence of bad weather. This design to
STC89C52 single-chip microcomputer as the core to complete the air
temperature, soil moisture, and light for data acquisition,
processing and display system of the basic block diagram, working
principle andthe design of relay control work. Main contents are: (1)
by monolithic integrated temperature sensor AD590 to collect
real-time temperature. (2) by the humidity sensor HS1100 gathering
real-time humidity. (3) through solid electric chemical carbon
dioxidesensor TGS4160 collecting carbon dioxide concentrations. (4)
determine whether collected parameter value and set value, and relay
control.
Through the above can be designed for plants to grow in the
process of soil humidity, environment temperature, light and co2
concentration in real time, continuous detection, display visually
and automatically control. Overcomes the traditional continuous
measurement of the shortcomings of manual measurement method does not,
and save the workload, and avoid the unnecessary loss caused by the
omission or human error.
Key words:SCMtemperature sensorhumidity sensorcarbon dioxide sensor
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