IntroductionBlock DiagramPower SupplyWorking AdvantagesApplicationsConclusion

Electric fences can be used to protect farmhouses, farmlands, forest bunglows, etc from animals.

In a way, these simulate the job of a cowboy or forest guard.

Already popular in countries where manpower is expensive, electric fences are slowly becoming popular in India as well.

These control the animals by giving them a short, sharp but safe shock that teaches them to stay away from the fence.

Electric fencing is safe, as its output is discrete (not continuous).

There is certain time duration between two

pulses that prevents prolonged shocking to animals or people.

Introduction

The solar cell is composed of the semiconductors of the P-N junctions.

It can convert light into electric energy. Therefore we can assume that electricity produced using sunlight shining on the solar cell can be used like common electricity.

An inverter is an electrical device that convertsdirect current DC) toalternating current (AC); the converted AC can be at any required voltage and frequency with the use of appropriate transformers, switching, and control circuits.

This project works on stable multivibrator principle.

A free running oscillator is designed to generate square wave and the output is given to push-pull amplifier.

This square wave is stepped up to high

voltage level and can be connected to the fence.

This fence system is powered by a 12V rechargeable battery.

A solar panel is connected to the battery to charge on day time. A normal PN junction diode is used for unidirectional low of charge current.

 The battery also can be charged from house hold AC supply of 230V, 50 Hz

This circuit uses regulated 12V, 750mA power supply. 7812 three terminal voltage regulator is used for voltage regulation.

Bridge type full wave rectifier is used to rectify the ac output of secondary of 230/18V step down transformer.

The battery charger circuit is designed to charge the battery with the help of house hold AC supply for emergency conditions.

Eco-friendly

 Safety

 Durability

 Low maintenance

 Designed to work on solar energy and hence independent of grid power

Significantly reduces man-animal conflicts

 Effective wildlife management tool for park managers

 Cost effective and return on investment starts from day one

Electric fence systems have varied application in Agriculture, Industrial and Forestry Or Plantation sectors.

With increasing crime in urban areas, this proven technology has now been adapted for domestic security applications, too.

Industrial: Security Electric Fence systems provide 100% protections against theft, Pilferage, arson, sabotage.............. The fence systems can also be integrated with other security devices like sirens, flood lights etc., making it impenetrable.

Domestic: The wall top system for residential applications is sleek, aesthetic and ideal for compounds, rooftops, farm houses and apartments.

The project “FARMER FRIENDLY SOLAR BASED ELECTRIC FENCE FOR RURAL AGRICULTURE” is designed such that it can be installed on any surface.

It is much easy and cost effective than increasing the height of the wall.

The project is easily expandable and can be used by farmer to increase the security of the land from animals, and compatible with all types of additional security gadgets.