| Title |
A Study on Realization and Receiving Characteristic Analysis of Visible Light Wireless Communication System for Power Line Communications Using ATmega16 Microcontroller |
| Authors |
윤지훈(Yun, Ji-Hun) ; 홍근빈(Hong, Geun-Bin) ; 김용갑(Kim, Yong-Kab) |
| Keywords |
ATmega16 microcontroller ; Power line communication ; Visible light wireless communication |
| Abstract |
This study is to solve problems of depletion of RF bandwidth frequency, confusion possibility, security that current wireless communications system have and is to confirm possibility of applying next generation network. To solve problems of current wireless communications system, visible light communications system for power line communications using ATmega16 Microcontroller is was realized and receiver property was analyzed. PLC exclusive chip APLC-485MA, Microcontroller ATmega16, 5pi bulb type LED and high flux LED, visible light receiving sensor LLS08-A1 were used for transmitter and receiver. Performance was analyzed by designed program and an oscilloscope. It was showed average 20% improved receiver rate rather than bulb type LED in the case of high flux LED through voltage change rate on communication distance and LED type of distance between 10 to 50 cm. The blue LED showed the best performance among measured LED types with above 10% of voltage decreasing rate. But As it gradually becomes more distant, the precise date was difficult to obtain due to weak light. To overcome these sort of problems, specific values such as changing conditions and efficiency value relevant to light emitting parts and visible light receiving sensor should be calculated and continuous study and improvements should also be accomplished for the better communications condition. |