Low cost automatic street light control system with and without relay

Abstract

Modern society entirely depends on electricity for daily life. It has become the key component for modern technology, without electricity most of the equipments which we are using daily will not work at all. Internet is our gateway for knowledge and we also depend on it a lot to get the things which are surrounding us very easily. Under this situation we are not using proper electrical energy in case of street lights. Street lights are perfect solution for night base loads at most of the utility companies during 1930’s were seeking for night timed base loads especially coal based power plants. In India approximately 40 million street lights are there which will generates a total demand of 4000 MW. The cost required to satisfy this demand will also very high. In most of the places maintenance of street lights is very poor. Even though several technologies have used to automatic control of street light but they may turn into several failures because of high cost, improper maintenance, environmental effects on the components or some other major issues. In this paper a low cost maintenance free automatic street light control system is proposed which can be used with relay al well as without relay by using basic electronics components. A small experimental set up has done in laboratory and it can be concluded that the street light automatically turns on and off depends on the darkness of the environment. It can be implemented anywhere irrespective of environmental conditions without any maintenance.