NB-IoT则很好的解决了GPRS抄表方案所面临的难题。NB-IoT抄表在功能上继承了GPRS的同时,比起2G/3G/4G有了50-100倍的上行容量提升,这也就意味着,在同一基站覆盖范围下,NB-IoT可比现有无线技术提供50-100倍的接入数。这对于装表量比较密集的小区无疑是一个更好的选择。
基于NB-IoT的智能抄表系统主要由带有NB-IoT模块的水气表、基站、NB-IoT核心网、NB-IoT管理平台、客户端网络管理系统、集抄管理系统等构成。水气表将采集的水气用量信息和自身状态信息上传至NB-IoT核心网和物联网云平台,同时也可以接收来自云平台的控制信息。客户端网络管理系统从NB-IoT管理云平台获取抄收到的居民用水/气信息,监控各居民的实时使用情况,水气公司通过监测到的数据,可对用户的用水、气进行实时阶梯调价控制,向居民推送每月的使用量和扣费等情况。
全球领先的半导体解决方案供应商瑞萨电子株式会社与全球领先的步进电机供应商美蓓亚三美株式会社宣布,联合开发基于旋转变压器(角度传感器)的步进电机和电机控制解决方案,并面向机器人、办公自动化(OA)设备,以及医疗/护理设备进行了优化。瑞萨电子与美蓓亚三美携手开发的基于旋转变压器传感器的步进电机和电机控制解决方案,可满足电动机更高精度控制、小型化以及应对环境影响更强抵抗力的需求。
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