Wednesday, November 9, 2011

Solar street light design Microcontroller-based intelligent control system

With the rapid development of science and technology, the world's growing energy crisis, the use of conventional energy can not meet the world's rapid economic growth, development and utilization of new energy has drawn increasing national attention. Reliable solar energy for their own safety, noise, pollution and renewable characteristics, combined with today's PV technology matures, the use of photovoltaic power generation part of the solution through one of the major energy issues.
Smart Solar Street light is the use of solar photovoltaic effect component, the light energy into electrical energy and stored in batteries for load use, it is a solar photovoltaic technology, battery technology, lighting technology in one of the emerging technologies. Solar street light controller is used in solar photovoltaic systems, coordination of solar panels, batteries, loads of work, so that the whole solar system is efficient and safe operation.
An intelligent solar street lighting system overall program
Intelligent solar street light system from the solar panels, batteries, LED light (main light, Vice-lamp) and a controller (Figure 1). Solar panels during the day and the sun's radiant energy into electrical energy output, after the charge control circuit is stored in batteries; evening when the light intensity decreases, the deputy controller lights, the direction of illumination. When the controller detects when the controller while it was lit after the main light and vice-lights, the lights around the same time and adjacent communication, control lights adjacent to the main light and lamp lit at the same deputy, to ensure that pedestrians in the road lighting. Controller to detect the battery charge or discharge beyond a certain range, the controller cut off the charge and discharge circuit to ensure the battery is not damaged. Encounter consecutive days of rain season can be switched to mains lighting, to avoid long-term battery power loss.