*Takamichi Mizuhara1, Masataka Morioka1, Noriyo Imazono1, Toshiki Aoki1, Kazutaka Kikuta2, Kazunori Yamamoto2, Yuki MURAKAMI2, Tomohiro Kawanabe2, Ken T. Murata2, Kazuya Muranaga3
(1.CLEALINK TECHNOLOGY CO., LTD., 2.National Institute of Information and Communications Technology, 3.Systems Engineering Consultants Co.,LTD. )
Keywords:LPWA, LoRa, Visual IoT
Visual Internet of Things (IoT) is a class of IoT that collects rich visual data. In general, the visual IoT device is equipped with a video transmission equipment such as a camera. The involved technologies are advanced video transmission techniques and information extraction from images by image recognition techniques. However, since the video data size is larger than the sensor data size, one of the issues of visual IoT is high-performance video transmission in networks in which the bandwidths are limited. In this paper, we design and develop a real-time monitoring system using visual IoT device. Our system is based on a novel protocol, named high-performance video transmission (HpVT), for field monitoring via 4G LTE mobile networks.
We introduce an LPWA system with WoR (wake-up on radio) functions. Using a LoRa modules with WoR, we examine the performance of this function. Since it tremendously saves power consumption, we expect a new network communication system running with solar-power only in fields. The performance of our system is evaluated on a model of a real field (Chikuma city, Nagano prefecture).