Optical Wireless Communication-Based 2K Real-Time Video Surveillance System for Future Underwater Visual Monitoring

We develop an optical wireless communication-based 2K real-time video surveillance system prototype with field- programmable gate arrays. Using a 3-W blue light-emitting diode and an avalanche photo-diode, 20-m and 1.5-m real-time picture/video transmission with a high resolution of 1920 × 1080 pixels is implemented in free space and pure water channel, respectively. It indicates the good performance of the prototype, which is the first step to realize underwater visual monitoring in future human-robot interaction applications.