| 摘要 |
An LED based lighting system for use in highway lighting, adaptations to current highway lighting systems, and associated methodology. The highway lighting system can be implemented in new highway installations and also by retrofitting existing highway installations. Unlike highway lighting systems in the prior art that convert AC to DC and clean the harmonics at each lamp post, the lighting system converts AC to (high voltage) DC and cleans the created harmonics at a centralized location thereby supplying high voltage DC to each lamp. The high voltage DC is then stepped down at each lamp post via communicating with centralized command center. This allows each lamp to be dimmed from full brightness to 0% brightness and also to be dimmed independent of one another (which in turn allows for automatic checking whether each lamp is functioning properly). |
