Currently, urban streetlights primarily rely on high-pressure sodium lamps, which suffer from low luminous efficiency, a short lifespan, and environmental pollution issues during recycling. Additionally, the informatization level of streetlight management remains low, with outdated methods of operation. Consequently, there is an urgent need to transition to more efficient and energy-saving LED lighting solutions, along with an intelligent management and control system. Intelligent streetlights leverage information technology and lighting advancements to enable individual lamp control, refined management, and high-efficiency energy savings.
The development of nighttime urban public lighting plays an increasingly crucial role in people's daily lives and economic growth. Not only does it ensure the safety of vehicles and pedestrians at night, but it also contributes to enhancing the aesthetic appeal of cities. Public lighting has long been a focal point for energy-saving initiatives. Energy-saving retrofit projects using contract energy management (EMC) models are gaining traction and support from local governments. Across the country, many regions are implementing LED energy-saving upgrades via EMC models. For instance, the Chancheng District in Foshan, Guangdong Province, is set to carry out an EMC renovation of nearly 6,000 streetlights. Similarly, Zhuhai plans to complete the upgrade of 90,000 LED streetlights within two years, adopting the EMC model. Meanwhile, the Shenzhen Development and Reform Commission is collaborating with other departments to draft an implementation plan for LED streetlight energy-saving renovations across the city, targeting a 20% reduction in energy consumption per unit area of public institutions over the next three years.
This initiative not only brings clear benefits but also opens up promising prospects for urban public lighting energy conservation. The system introduces innovations like IoT, cloud computing, and 3G communications to transform traditional streetlight projects into intelligent ones. It builds a public management platform for urban smart streetlights, providing technical support for intelligent lighting systems. This approach aims to optimize operational efficiency and showcase the potential of smart city construction. Through an intelligent streetlight management system, cities can achieve comprehensive monitoring and adjustments, enabling refined management while reducing maintenance difficulties and costs. Remote and mobile management facilitates energy-efficient outcomes.
The primary goals of the smart streetlight project include transforming streetlight distribution cabinets to enable intelligent group management. Wireless centralized control terminals are installed in distribution cabinets to monitor, remotely control, and signal groups of streetlights. Individual lamp intelligent management is achieved by installing node controllers on LED lights, allowing detailed control over single lamps, including telemetry, remote control, and remote signaling. A smart streetlight management platform is deployed to centralize information management, collecting and analyzing operational data from various devices connected to each streetlamp. This platform provides valuable insights and decision support for relevant streetlight management departments, enabling real-time and efficient regulation. Furthermore, energy-saving strategies are implemented to achieve a secondary energy-saving effect of 30-40% by adjusting lighting schedules and dimming levels based on different periods, ensuring on-demand lighting and minimizing energy wastage.
In addition to these improvements, the integration of IoT and cloud-based technologies enhances the overall functionality and adaptability of the system, making it more robust and user-friendly. These advancements not only address current challenges but also lay the groundwork for future scalability and innovation in urban lighting solutions.
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