IJBTT

Greenhouse Monitoring and Automation System Using Microcontroller

	International Journal of Engineering Trends and Technology (IJETT)
	© 2017 by IJETT Journal
	Volume-45 Number-5
	Year of Publication : 2017
	Authors : Pradeep kumar S, Byregowda B K
	DOI :  10.14445/22315381/IJETT-V45P241

Citation 

Pradeep kumar S, Byregowda B K "Greenhouse Monitoring and Automation System Using Microcontroller", International Journal of Engineering Trends and Technology (IJETT), V45(5),196-201 March 2017. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group

Abstract
In the previous decade a poly house concept was implemented by which real time controlling against the field environment like temperature, light intensity, humidity, soil moisture was done manually. The control action had done in a way that the sensor from sensing station or a sensing system generates the output related to the estimated parameter but it seems lack of general purpose automation system. The proposed system is an embedded system which will closely monitor and control the microclimatic parameters of a greenhouse on a regular basis round the clock for cultivation of crops or specific plant species which could maximize their production over the whole crop growth season and to eliminate the difficulties involved in the system by reducing human intervention to the best possible extent. The system comprises of sensors, Analog to Digital Converter, microcontroller and actuators. When any of the above mentioned climatic parameters cross a safety threshold which has to be maintained to protect the crops, the sensors sense the change and the microcontroller reads this from the data at its input ports after being converted to a digital form by the ADC. The microcontroller then performs the needed actions by employing relays until the strayed-out parameter has been brought back to its optimum level. Since a microcontroller is used as the heart of the system, it makes the set-up low-cost and effective nevertheless. As the system also employs an LCD display for continuously alerting the user about the condition inside the greenhouse, the entire set-up becomes user friendly. Thus, this system eliminates the drawbacks of the existing set-ups and is designed as an easy to maintain, flexible low cost solution.

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Keywords
Microcontroller, ADC, DAC, Threshold, sensors and actuators.