INTELLIGENT STREET LIGHTING SYSTEM


Energy conservation reduces the energy consumption and energy demand per
capita, and thus offsets the growth in energy supply needed to keep up with
population growth. This reduces the rise in energy costs, and can reduce the need for
new power plants, and energy imports. The reduced energy demand can provide more
flexibility in choosing the most preferred methods of energy production.
In any city “STREET LIGHT” is one of the major power consuming factors. Most of the
time we see street lights are ON even after sunrise thus wasting lot of energy. Over
here we are avoiding the problem by having an automatic system which turns ON &
OFF the street lights at given time or when the ambient light falls below a specific
intensity. All streetlights are connected to a central computer from where the time at
which the lights are to be turned ON/OFF can be set. An LDR is used to check if the
lights have turned ON or not. This status is then sent to the central computer. Thus
even the blown out lights can be detected. Each controller has an LDR which is used
to detect the ambient light. We can operate the system in two modes the MANUAL
MODE & AUTO MODE. In MANUAL MODE the lights are TURNED ON/OFF from the
central computer. In AUTO mode if the ambient light is below a specific value the
lights are turned ON.