Intelligent LED solar street lighting system design

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Solar energy is the most direct and on Earth in general is the most clean energy, solar energy as a huge amount of renewable energy. With the increasing scarcity of traditional energy sources, the application of solar energy will be more widely used, especially the field of solar power in just a few years has developed into a mature sunrise industry.

Currently, roads, lighting accounts for 25% to 30% of the entire lighting electricity consumption, road lighting energy saving has great potential and space. Road lighting is high pressure sodium lamps, the light color, long start-up time, high power consumption, heat large disadvantage of the need to develop new, more energy-efficient road lighting.

High power and high luminous efficacy the garden led lights is at home and abroad in recent years the rapid development of new light source, it has a high luminous efficiency (≥ 90 lmPW (1W LED)), long life (30000 ~ 50000h), shock-resistant, easy to damage, instant start, no pollution and so on. The white LED is ideal light sources for general lighting and road lighting. Solar street light has many advantage s: safe, reliable, and easy maintenance; do not need conventional energy does not pollute the environment; according to need everywhere installation, without connection to the public grid. Therefore, the development of LED street lamp has an important energy-saving significance. In this paper, based on the original solar street lighting system, and developed a new type of intelligent LED solar street lighting system.

Solar street lighting system consists of the following components: solar panels, boost circuit module, controller module, Zigbee communication components, the battery group, LED light source.

The basic working principle of the system: under the control of the solar controller, solar panels during the day and after two boost circuits (12V to 42V) to charge batteries for night battery pack provides power to the LED light load. In the control module to achieve a real-time control of the boost circuit, battery voltage, temperature, the temperat ure of the high bay lighting lanterns, battery plate voltage, feedback and data collected through the analog switch to PIC realize the intelligent control of the street light system. Zigbee module for the street lighting system, networking and reliable technical support.