基于物联网的智能教室控制系统设计  

Intelligent Classroom Control System Based on Internet of Things

作　　者：薛清 周子川 付浩东 符裕亮 陶莎 XUE Qing;ZHOU Zichuan;FU Haodong;FU Yuliang;TAO Sha(School of Science,Jiangsu Ocean University,Lianyungang 222005,China)

机构地区：[1]江苏海洋大学理学院,江苏连云港222005

出　　处：《江苏海洋大学学报（自然科学版）》2020年第2期94-98,共5页Journal of Jiangsu Ocean University:Natural Science Edition

基　　金：江苏省海洋资源开发研究院开放课题(JSIMR201502)。

摘　　要：以STM32单片机为控制核心设计了一种智能教室控制系统。该系统利用光强度传感器BH1750采集室内光强,利用热释电红外传感器感应人员位置,将数据送入单片机进行处理,通过单片机的输出端口控制教室的灯光系统;利用温湿度传感器DHT11获取室内外温湿度,通过室外湿度和雨滴传感器判断室外是否下雨,经STM32判断后发出指令控制窗户、窗帘的开关;利用摄像头获取人员进出教室的视频信号,经计算机视觉技术处理后统计出教室人数,利用液晶屏显示教室的温湿度、人数。系统还使用ESP32 Wi-Fi模块,利用基于MQTT协议的物联网技术,实现了手机对教室灯光、窗户系统的远程控制。系统较好地降低了教室使用当中存在的能源浪费问题,实现了对教室内灯光和窗户等设施的高效、统一、智能化管理。An intelligent classroom control system is designed with STM32 single-chip microcomputer as the control core.The system uses the light intensity sensor BH1750 to collect the indoor light intensity,uses the pyroelectric infrared sensor to sense the personnel position,sends the data to the single-chip microcomputer for processing,controls the classroom light system through the output port of the single-chip microcomputer.It uses the temperature and humidity sensor DHT11 to obtain the indoor and outdoor temperature and humidity.The outdoor humidity and raindrop sensor judge whether it is raining or not,and send out the command to control the switch of windows and curtains after the judgment of STM32.It uses the camera to obtain the video signal of people entering and leaving the door,and count the number of people in the classroom after the computer vision technology processing,and use the LCD screen to display the temperature,humidity and number of people in the classroom.The system also uses the ESP32 Wi-Fi module and the Internet of Things technology based on MQTT protocol to realize the remote control of the lighting and window system of the classroom by mobile phone.The system solves the problem of energy waste in the current classroom,and realizes the efficient,unified and intelligent management of the lighting,windows and timetable in the classroom.

关 键 词：物联网 智能教室 STM32 MQTT ESP32 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]