A Hybrid Real-time Video Streaming Remote Surveillance System Based on Mobile Robot

Recently, robot is more often introduced to warehouse cargo monitoring and surveillance thanks to rapid industrial automation. In the process, real-time video streaming system plays an important role. Improved accuracy of monitoring causes higher requirements for real-time, stable and efficient video streaming system, but mobile robot uses limited wireless transmission bandwidth in a warehouse, which is unable to ensure clear and real-time streaming simultaneously. This paper proposes a multichannel video stream transmission system to split multiple video data and distribute according to different transmission strategies, which attaches equal importance to clear and stable surveillance 360-degree panoramic video and real-time interactive video stream with low amount of data. By testing its performance with various parameters, it is revealed that the requirements for indoor monitoring of mobile robot are mostly satisfied by the system as it is able to transmit the panoramic audio and video streams at the code ratio up to 4mbps stably through common wireless network, as well as 1mbps interactive audio and video streams at the transmission delay of less than 800ms.