| Summary: | 碩士 === 國立東華大學 === 電機工程學系 === 103 === As time progresses, streetlights are closely bound up with people’s daily life. Furthermore, streetlights are to secure the safety of road use at night. Without proper preservation, when the streetlight does not lit up functionally, there might be urgent issues and dangers occurred. However, the power company, as the electricity supplier, has had serious problem caused by aging and downsizing human resources. In addition to the fact that the controlling equipment has not been updated and upgraded, there were accidents caused by streetlight breakdown. With the breakdown, pressure of the frontline staff might suddenly increase. To prevent the breakdown from happening, providing steady power and increasing reliability of generation system are both what the power company has to endeavor. This thesis aims to provide a modified design for current centralized control circuits of streetlights. When an error occurs, the design can effectively reduce the power cut range. In addition to analyze the problem of current streetlight controlling system, this thesis also provides a hardware circuit to test and verify the feasibility of the new design.
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