| With the development of the Internet of Things technology,the quality of human life has been greatly improved,and people have begun to pursue a more intelligent,healthy and safe home environment.Smart homes are becoming more and more popular as a necessary product for the pursuit of high quality of life.At present,the programming required for remote control of smart devices in the smart home system is complicated,and the server cost is high.So how to design a highly integrated smart home system with high efficiency and low cost to meet the home environment required by users has become the focus of major manufacturers’ attention.In response to this,this paper proposes and designs a smart home remote monitoring system that helps people understand changes in home environment information in real time.The overall design of the system is based on the OneNET cloud platform to realize two-way communication between the device control terminal and the user terminal;the main controller based on STM32F103C8T6 controls a variety of sensors to collect various data such as temperature,humidity,light intensity and sound in the home environment.It uses human sensors,smoke sensors,natural gas sensors to monitor whether someone illegally enters and exits,whether the gas concentration in the environment exceeds the standard,etc,and through buzzer alarms to realize the reminder of abnormal information;then upload the data to the OneNET cloud platform through WiFi and MQTT protocol.The user can use the browser WEB and mobile phone APP to view the changes in the home environment in real time,and issue instructions to the execution terminals such as relays to control the home equipment at any time according to the data changes.At the same time,some triggers are set on the OneNET cloud platform to send emails to remind the user when the family environment information is abnormal.The user can judge whether to take emergency measures based on the received emails.Finally,in order to solve the disconnection problem that may be faced in daily life,the function of Bluetooth communication is added,so that remote monitoring and control of the home environment can be realized through the unique Bluetooth communication without the network.In this paper,the smart home remote monitoring system has undergone multiple functional tests and found that the system’s functional design meets the requirements,and the data runs stably.The user can accurately control home equipment and real time monitoring of the home environment.The smart home solution based on single chip microcomputer + wireless communication technology + OneNET cloud platform+ MQTT protocol + mobile smart terminal can not only meet the needs of users to understand the changes of home environment information in real time,but also reduce the development cost of enterprises and shorten the development process.In addition to being used as a smart home,the system can also be used in various scenarios such as fire prevention and control and cultural relic protection through adjustments in the future. |
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