Greenhouse monitoring and control system based on wireless sensor network using XBee

Other Title(s)

نظام المراقبة و السيطرة على البيت الزجاجي اعتمادا على شبكة الاستشعار اللاسلكية باستخدام XBee

Dissertant

Husayn, Rana Hamid

Thesis advisor

Marhun, Ali Fadil

Comitee Members

al-Saffar, Ala A.
al-Asadi, Abd A.
Nassar, Khulud A.

University

University of Basrah

Faculty

Science College

Department

Department of Computer Science

University Country

Iraq

Degree

Master

Degree Date

2014

English Abstract

Today agriculture is changing in response to the requirements of modern society, where ensuring food supply through practices such as water conservation, reduction of agrochemicals and the required planted surface, which guarantees high quality crops are in demand.

Greenhouses have proven to be a reliable solution to achieve these goals; however, a greenhouse as a mean for protected agriculture has the potential to lead to serious problems.

The most of these are related to the inside greenhouse climate conditions where controlling the temperature and relative humidity (RH) are the main objectives of engineering.

Achieving appropriate climate conditions to ensure high yield and quality crops reducing energy consumption have been the objective of investigations for some time.

Different schemes in control theories have been applied in this field to solve the aforementioned problems.

The proposed system consists of two stations: Sensor Station and central station to allow for better monitoring of the climate condition inside greenhouse.

The sensor station is equipped with these sensor elements which are temperature, humidity and light.

The communication between the sensor station and the central station is achieved via ZigBee wireless modules.

This system is able to collect the information about the main environmental parameters inside the greenhouse.

The analog signals of different sensors are converted into digital values utilizing the capability of XBee via it's analog to digital converters of the end devices without using microcontroller.

These information are transmitted in wireless manner to central node to be processed and making a decision based on simple fuzzy controller to initiate suitable digital command signals via digital outputs of XBee to regulate the greenhouse parameters(temperature, humidity and light) for specific crop.

The collected data and the generated control signals are stored on database to be analyzed for enhancement of the crop growing purposes.

The system can monitor automatically or manually the data of temperature, humidity and light intensity in real-time and continuously every 5 seconds.

The system has been tested for three months period.

Through this time running and practical using, the system has been proved that it has many advantages such as high testing precision, accuracy, and clear data management.

The affect of used the control is clear specially in the temperature which is reduced by (9-10)oC using the small fans.

This reduction may increase when using suitable size of fans for cooling.

Fan and pad system provide suitable level of humidity from the water that pass through the filter.

Also using LED as indication to operate the mist system this will provide high level of humidity and also the mist system provide simple method to irrigation.

White shading are used to decrease the light intensity because the white color considered less absorption of sunlight than the other shading colors.

Main Subjects

Information Technology and Computer Science

No. of Pages

90

Table of Contents

• APA
• MLA
• AMA

Language

English

Data Type

Arab Theses

Record ID

BIM-744400