Avian Hatching Monitor and Control System Based on 1-Wire Sensor Groups
Wen Xinling · 2008
System selects temperature sensor DS18B20 and humidity sensor HS1101 to compose sensor groups after analyzing avian hatching requirement, which realizes temperature and humidity automatic monitor and control through 1-wire bus technology. Sensor groups complete field hatching temperature/ humidity monitor and transmit analog signal into digital signal, single chip microprocessor (SCM) AT89C51 as core controller processes it, drives actuators to realize temperature, humidity and turning-over-eggs control. Experiments show that SCM can realize temperature control between 35square and 40square, and control precision is less than plusmn0.3square; humidity measurement range between 0 and 100RH%, and control precision is less than plusmn3RH%, as well as effectively completes automatic turning-over-eggs. Experimentspsila results reveal that system performs well as expected. This paper mainly introduces structure of field hatching monitor and control equipment and parts of hardware/software design in detail. This system can be applied to other areas circumstance monitor, such as intelligent building, etc.