Smart Street Light

Abstract

The Smart street light system controls the automatic ON and OFF street lamps according to the atmospheric situation. This street lamps automatically detects any movement in their surroundings. The PIR senses any movement of the objects in the street. The LDR sensor is used to sense the brightness that makes the street lamp to turn on and off depending on the environmental brightness. This system is used to reduce the power consumption for the government. Thus, implementation of smart street lights is used to reduces the power wastage and consumes power efficiently. The transistor used in this project turns off and turns on lamps at day and night time respectively with the output from the LDR sensor by sensing the environmental brightness. The backup for the LDR sensor uses the RTC (Real Time Clock) to activate street lamps based on time. If the street lamps gets damaged, it automatically sends an alert message to the electricity board using GSM module. When the interrupt occurs in the electricity board, the power consumption automatically switch-over to the solar energy from battery charged by solar panels. The light varies depends on the humidity of the atmosphere. The humidity level of the environment is sensed by humidity sensor. These all process are controlled by Arduino.