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Development of Point-to-Multipoint Type Human Detection System using 920 MHz Band

In recent years, the 920 MHz band radio wave has attracted attention as one of frequency bands used in IoT (Internet of Things). In this study, we newly proposed and developed point-to-multipoint type human detection system using the 920 MHz band radio wave for the purpose of detecting human motion in several rooms. We evaluated the system with or without human presence to clarify the possibility of human detection based on actual measurements. From the measurement results, we found that the proposed system was able to detect human motion.