基于物联网的用电器测控与功率因数改善装置  

A device for measuring and controlling electrical appliances and improving power factor based on the Internet of Things

作　　者：毕涛 杨莉莉 刘迪 张大为 Bi Tao;Yang Lili;Liu Di;Zhang Dawei(School of Basic Science for Aviation,Naval Aviation University,Yantai 264001,Shandong,China)

机构地区：[1]海军航空大学航空基础学院,山东烟台264001

出　　处：《船电技术》2024年第12期29-33,共5页Marine Electric & Electronic Engineering

摘　　要：本文设计了一种以STC15为控制核心的智能插座,由电压电流互感器电路、信号调理电路、继电器模块、过零检测电路、报警电路、显示电路、Flash存储模块和键盘输入电路等模块组成。利用电压、电流互感器可对市电电压和用电器电流隔离采样;由调理单元,将信号抬升1.33 V,满足A/D采样要求;单片机对采集电流信号进行傅里叶分析,得到一系列电特征参数,通过液晶和手机显示;Flash存储电特征参数,可对用电器进行学习与识别;通过单片机控制继电器切换电容容量来实现功率因数改善;手机APP通过蓝牙或者WIFI模块控制用电器启停,并监测用电器工作的温湿度。This paper introduces a design of intelligent socket with STC15 as the control core,It consists of modules such as voltage and current transformer circuit,signal conditioning circuit,relay module,zero crossing detection circuit,alarm circuit,display circuit,Flash storage module,and keyboard input circuit.Voltage and current mutual transducers can be used to isolate and sample the mains voltage and electrical current.By conditioning the unit,the signal can be boosted by 1.33V to meet the A/D sampling requirements.The microcontroller performs Fourier analysis on the collected signal to obtain a series of electrical characteristic parameters,which are displayed on the LCD and mobile phone;electrical characteristic parameters for learning and identifying electrical appliances are stored in FLASH module;By switching capacitor capacity through a microcontroller-controlled relay,power factor improvement can be achieved.The mobile application controls the start and stop of electrical appliances through Bluetooth or Wifi modules,and monitors the temperature and humidity of the electrical appliances during operation.

关 键 词：STC15 电压电流互感器 傅里叶分析 FLASH存储 无线传输 

分 类 号：TM714.1[电气工程—电力系统及自动化]