14-09-2012, 09:23 PM
i want full detail with block diagram n circuit diagram about this topic
14-09-2012, 09:23 PM
i want full detail with block diagram n circuit diagram about this topic
12-08-2013, 04:24 PM
AUTOMATIC PLANT WATERING SYSTEM DEPENDING ON SOIL CONDITION AUTOMATIC PLANT WATERING.docx (Size: 17.54 KB / Downloads: 16) ABSTRACT Irrigation is the art of applying water to the plants/ fields to grow and to increase the quantity as well as quality of the fruits, food grains etc., Automatic irrigation system is a modern method of irrigating the vegetable, fruit fields, farms, gardens and land scaping areas as against the conventional method, which uses large number of men- hours and uncontrolled water quantity. This modern drip irrigation method has the advantage of precisely applying water for irrigation in both location and point, thus offering the potential of increased profit due to Reduced water. This projects work describes about “Automatic Plant Watering System depending on soil condition” designed with micro- controller. The main purpose of the projects work is to apply water to the plants automatically, by sensing the soil condition. For sensing the soil condition, weather it is dry or wet, copper electrodes are used as soil sensors and output of these sensors are fed to the microcontroller. The output of microcontroller is used to drive the motor, for this purpose relay is used. These are electrically controlled valves, when the particular plant soil found to be dry, automatically the controller energizes that particular plant relay and supply water to that plant. Provision is made for LCD panel, such that condition of the soil can be displayed. In addition to the above, the system is designed to monitor the water level in overhead water tank. INTRODUCTION In India agriculture is the most important occupation of the people. More than 60% of our total population depends for their subsistence on agriculture. After independence due to various development projects introduced in the field agriculture, production of food grains has been continuously increasing. The entire Indian economy is depends on agriculture. Any fluctuation in agriculture income will directly affect the India’s national income. In this regard, a thought is given to develop an Automatic Plant Watering System Depending On Soil condition designed with micro-controller. Irrigation engineering comprises of a full knowledge of sources of irrigation water, their proper preservation and application of this water to the land after conveying it from the source through an irrigation system, consisting of canal and connected works. It also includes a working knowledge of different types of soils and the water requirements of various crops sown in them. In this projects work lot of importance is given for the drip irrigation, such that by sensing the soil humidity water supply can be controlled automatically. For sensing the soil condition copper electrodes are used. THEROTICAL ANLAYSIS BLOCK DIAGRAM AND ITS BRIEF DESPRIPTION The block diagram and its brief description of the projects work “Automatic Plant Watering System Depending On Soil Condiotion” is explained in brief. The complete block diagram of the projects work is shown at the end of this chapter. The description is as follows. LCD FOR DISPLAY: Liquid Crystal Display has been used for monitoring the soil condition, which displays weather the soil is dry or wet. LCD is preferred because of its lightweight and low power consumption compared to LED’s or Fluorescent displays. The LCD is interfaced to the micro-controller. To character that is displayed will be stored in the Micro-controller prior to the display. A Liquid Crystal Display is a parallel plate capacitor with dielectric patterns in the photo resist. These patterns can be segments of numeric digits or they can be icons/patterns that represent various functions. LCD consists of two substrates that form a ‘flat bottle’ containing the liquid crystal mixture. The inside surfaces of the bottle or cell are coated with a polymer that is buffed (surface which is finished with lines) to align the molecules of liquid crystal. The liquid crystal molecules align on the surface in the direction of buffing. In the present module 16-bit length LCD is used i.e., the message can be 16 characters maximum at a time.32-bit or more LCD can be used in future for enhancing the text length. MICRO-CONTROLLER Microcontroller chip includes a microprocessor as well as some often peripherals. A controller is used to control some process or aspect of environment. A typical microcontroller application is monitoring of my house. As the temperature rises, the controller causes the windows to open. If the temperature goes the above a certain threshold, the sir conditioner is activated. As the process of miniaturization continued, all the components needed for controller were built right onto one chip. A one chip computer or microcontroller was born. A microcontroller is a highly integrated chip which includes, on one chip, all or most of the parts needed for the controller. The microcontroller could be called a “one-chip solution”. It typically includes CPU, EPROM/PROM/ROM, I/O devices (serial, parallel, ADC, DAC etc) , Timers, Interrupt controller. |
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