The Society of Convergence Knowledge Transactions ISSN:2287-8920(Print) 융복합지식학회논문지

The optical camera communication systems is a computer vision for image processing and On-Off Keying (OOK) cell frame modulation. Light Emitting Diode is controlled to transmit data in the form of digital On-Off signal of illumination using On-Off pulses. Technically the modulation must provide acceptable performance with a wide dimming requirement (e.g. 10% to 90%) and exhibit no bit flicker or frame flicker. To achieve this objective, IRF540N MOSFET with microprocessor-based LED driver is implemented for keeping the average light intensity constant over any given interval not longer than 10ms during the transmission of data. As the result multi-MAC adaptive has to be able to work with either a monochrome LED or white LED.