DEVELOPMENT OF UBIQUITOUS METERING SYSTEM (NEW WIRELESS COMMUNICATION DEVICE FOR SMART METERING)

摘要

Tokyo Gas Co., Ltd., Osaka Gas Co., Ltd. and Toho Gas Co., Ltd with the strength of computerized gas meter technology launched a joint-development project for a highly reliable, cost efficient next-generation smart gas metering system called Ubiquitous Metering System, in collaboration with Japan's 3 leading meter manufacturers (Yazaki Corporation, Aichtokeidenki Co., Ltd. and Toyogasmeter Co., Ltd.), top 3 electronics makers (Panasonic Corporation, Toshiba Toko Meter Systems Co., Ltd. and Fuji Electric Holdings Co., Ltd), and the Japanese largest carrier, NTT. Our novel AMI is composed of 3 main components, which are 1) WAN Device for receiving wide area ubiquitous network, 2) Ad-hoc Mesh Networks (U-Bus Air), and 3) Ultrasonic Gas Meters Interfaced with a Next-Generation Communication Line (U-Bus). This paper will describe features of ad-hoc mesh networks (U-Bus Air) and some results of field tests.