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SYNOPSIS REPORT 0n

Monitor and Control of Greenhouse Environment

“The projecT GreenBee” Submitted in partial fulfillment of the Requirements for the award of

Degree of Bachelor of Technology in Electronics and Communication Engineering

Submitted By Mahesh Kumar Dewat – 100103168 Shubham Trivedi- 100103300 Rohit Kumar- 100103254

SUBMITTED TO:

Department of Electronics and Communication Engineering School of Engineering and Technology, Sharda University Greater Noida, U.P.-201306 (2012-2013) 1

Abstract Appropriate environmental conditions are necessary for optimum plant growth, improved crop yields, and efficient use of water and other resources. Automating the data acquisition process of the soil conditions and various climatic parameters that govern plant growth allows information to be collected at high frequency with less labor requirements. The existing systems employ PC or SMS-based systems for keeping the continuously informed of the conditions inside the greenhouse; but are unaffordable, bulky, difficult to maintain and less accepted by the technologically unskilled workers.

Introduction We live in a world where everything can be controlled and operated automatically, but there are still a few important sectors in our country where automation has not been adopted or not been put to a full-fledged use, perhaps because of several reasons one such reason is cost. One such field is that of agriculture. Agriculture has been one of the primary occupations of man since early civilizations and even today manual interventions in farming are inevitable. Greenhouses form an important part of the agriculture and horticulture sectors in our country as they can be used to grow plants under controlled climatic conditions for optimum produce. Automating a greenhouse envisages monitoring and controlling of the climatic parameters which directly or indirectly govern the plant growth and hence their produce. Automation is process control of industrial machinery and processes, thereby replacing human operators.

The Proposed work 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

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system also employs an LCD display for continuously alerting the about the condition inside the greenhouse, the entire set-up becomes friendly.

Hardware and software requirements    

 



Microcontroller (AT89S52) Analog to Digital Converter ( ADC 0808/0809) Liquid Crystal Display (Hitachi's HD44780) Sensors (Data acquisition system) Temperature sensor (LM35) Humidity sensor (HIH4000) Light sensor (LDR) Moisture sensor Actuators – Relays Devices controlled Water Pump (simulated as a bulb) Sprayer (simulated as a bulb) Cooler (simulated as a fan) Artificial Lights (simulated as 2 bulbs) Buzzer

Required Software: Keil, Proteus

Block diagram

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Time framing or Stages of work to be done The complete work is to be done in 5 stages: 1. Microcontroller connection 2. LCD connection with Microcontroller 3. Relay connections & Testing 4. ADC interfacing with Microcontroller 5. Sensor interfacing with ADC

Conclusion A

step-by-step

approach

in

deg

the

microcontroller

based

system

for

measurement and control of the four essential parameters for plant growth, i.e. temperature, humidity, soil moisture, and light intensity which will help in growing the plants in unsuitable conditions. The continuously decreasing costs of hardware and software, the wider acceptance of electronic systems in agriculture, and an emerging agricultural control system industry in several areas of agricultural production, will result in reliable control systems that will address several aspects of quality and quantity of production. Further improvements will be made as less expensive and more reliable sensors are developed for use in agricultural production.

References Books Rebecca Tyson Northen, Orchids As House Plants, Dover Publications, New York, 2nd Edition, 1985. Muhammad Ali Mazidi, Janice Gillispie Mazidi, Rolin D. Mc Kinlay , The 8051 Microcontroller & Embedded Systems, Pearson Education Inc. 2nd Edition, 2008. Myke Predko, Programming and Customising the 8051 Microcontroller, TMH, 1999. SENSORS- The Journal of Applied Sensing Technology, Advanstar Communications Inc IEEE Papers Stipanicev D., Marasovic J., Networked embedded greenhouse monitoring and control, Proceedings of 2003 IEEE Conference on Control Applications, June 2003. Turnell, D.J. de Fatima, Q.V., Turnell, M., Deep, G.S., Freire, R.C.S., FarmWeb-an integrated, modular farm automation system, Vol. 2, Oct. 1998.

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