Agriculture is food supplies sources throughout the world. Therefore, proper care must be taken for improvement of yields with least usages of resources available like energy and water. This project focuses on agricultural sector’s development with least water utilization and excellent usages of solar energies. Main agricultural parameters are rain, wind, temperature and soil moisture that is found with help of sensors. Sensor outputs have been sent to PIC by means of RF modules. PIC activates in turn control units. Control unit consists of shield, exhaust fan and valve. Operations occurring are as follows: When rains are detected by rain sensors, shields are activated for covering fields. Temperatures are displayed on LCD screens with temperature sensors help. Temperature exceeds threshold values. Then exhaust fan is activated. Moisture sensors help in measurement of moisture levels. In case, moistures are low, valve opens such that water keeps flowing through valves to fields. Anemometers are used for detecting wind speeds. Flap of window placed through fields are rotated whilst depending on speed of wind. Solar cells with placement on solar trackers are used for obtaining solar efficient energies. These energies are used for powering sensors.
After plenty of researches and surveys there is final ending up in conducting projects in sector of agriculture. For making irrigation simple, there is planning of in turn controlling many parameters environmentally. Therefore title of this project is “Control of Environment Parameter in a Green House”. Base papers suiting project is “Remote Sensing and Control of an Irrigation System Using a Distributed Wireless Sensor Network” and “Wireless measurement and controlling of Environmental parameters”. Additional factors are planning the utilization of conventional energy sources as parts of energy conservation. Many sensors are introduced such as temperature sensors, soil humidity sensors, and rain sensors. This is because temperature, soil water content and rain are most essential and integral parameters in systems of irrigation. Description of sensors above mentioned is as follows: Controllers of temperatures: Soil water content moisture sensor: For crop cultivation in proper manner, there should be proper checking on soil moistures and there should be continuous monitoring of this factor. As per web pages, there is information that 2 nails dipped in Plaster of Paris, and then separated by fixed distances acts as soil moisture sensors. Operation principle had been that porous blocks resistance is proportional to water content. So, wetter block lowers measured resistance across 2 embedded electrodes. So soil moistures could be designed. Rain sensors: Ideas regarding rain sensors are present from web pages. In web page, there is information that simple PCB uses etching processes and is used as rain sensors. It is most cheap form of rain sensors. Temperature sensor: Temperature largely fades crops.
For avoiding this, there is introduction of temperature sensor. Information in web page is that, LM35 is utilized as temperature sensor.