用于电力资产在线感知的eRFID标签设计  

A eRFID Tag Design for Online Perception of Power Assets

作　　者：张鋆 张明皓 仝杰[1] 李荡 雷煜卿[1] 张树华 Zhang Jun;Zhang Minghao;Tong Jie;Li Dang;Lei Yuqing;Zhang Shuhua(China Electric Power Research Institute,Beijing 100192,China)

机构地区：[1]中国电力科学研究院,北京100192

出　　处：《电工技术学报》2020年第11期2296-2305,共10页Transactions of China Electrotechnical Society

基　　金：中国电力科学研究院创新基金(52420018006S);泛在电力物联网技术标准体系研究(5442HL190012);新技术研究与应用-2019年智能传感布局及系列新型传感器研发与试点项目资助。

摘　　要：传统电力设备上的射频识别(RFID)标签只做标识使用,缺少感知及多维数据交互能力。该文面对各类电力资产分布分散、亟需在线感知的需求,基于物联网技术,设计了一款具备感知及数据交互能力的eRFID标签。该eRFID标签不但可以实现电力资产全寿命周期智能管理,还可以对其温度、湿度、振动等参数进行有效监测,实现标识、感知一体化。eRFID在线感知标签通过915MHz超高频双界面RFID芯片实现了控制部分和射频部分的桥接以及设备ID与其运行参量的耦合,进而可对eRFID在线感知标签各感知模块进行无线主动控制。标签对振动信号进行监听,通过振动异常唤醒标签进行设备角度姿态解算,采用北斗定位及带有蓝牙的低功耗微控制单元(MCU)实现电力设备室内外全方位定位,并在标签内实现阈值告警、实时定位与信息推送,防止设备破坏和被盗。标签同时内置大容量存储器,以存储资产完备信息、图纸等资料,建立微数据库,实现基于信息定义的网架拓扑识别,为电力物联网的建设提供有效支撑。RFID tags of traditional power equipment was used only for identification, lacking the ability about sense and interaction of multidimensional data. Based on the IoT technology, an eRFID tag with sense and data interaction capabilities was designed for the wide distribution and various types of power assets which need online awareness ability. The eRFID tag can not only used to the intelligent management about the life cycle of power assets, but also can effectively monitor parameters such as temperature, humidity and vibration to bring about integration of identification and perception. The eRFID online sense tag connect the control part with the RF part through the 915 MHz UHF dual-interface RFID chip, realizing the combination of the device ID and its operate parameters, and can actively control the modules of eRFID online sense tag. The eRFID sense tag can monitor the vibration signal. When the vibration signal is abnormal, the eRFID tag waked up, and then it calculates the angular posture of the device. Then it complete alarms threshold, RTLS, information pushes to prevent device damage and theft. It uses Beidou positioning technology and a low-power micro controller unit(MCU) with Bluetooth to achieve indoor and outdoor omnidirectional position of power equipment. The tag also has built-in large-capacity storage to store complete information such as assets, drawings, etc., so that it establishes a micro-database to realize network topology recognition based on information definition.

关 键 词：双界面RFID 物联网 低功耗 室内定位算法 电力资产管理 

分 类 号：TM93[电气工程—电力电子与电力传动] TP391[自动化与计算机技术—计算机应用技术]