Design and implementing wireless multimedia sensor network for movement detection using FPGA local co-processing

摘要

In recent years, many researches have been conducted on designing wireless multimedia sensor networks. But, implementing these networks faces several challenges. One of these challenges is the bulky nature of the multimedia data which needs powerful radios with high data rates for transmission and requires much more energy. So, in some applications it is more efficient to process the data locally and send the results to the base station which allows WMSNs to be implemented using simple and cheap network nodes. In this paper a wireless multimedia sensor network has been designed which processes the images locally using small FPGA processors in order to detect possible motions and the time and location of the detected movements will be sent to the base station. The network is implemented to perform two motion detection algorithms separately using Spartan 6 FPGAs and the local results of motion detection and global result of the network are presented.