Abstract
In response to the problems of cumbersome operation, single interaction mode and low convenience of traditional home in the era of IoT, this paper designs and implements a smart home system based on FreeRTOS and QT graphic terminal. The STM32 with FreeRTOS system is used as the control center, combined with the K210 chip for face detection, and the WIFI technology collects indoor sensor data in real time to automatically control a wide range of home devices, while the user is notified by voice alarm module in case of danger. The current environmental conditions as well as parameter values are displayed at the QT graphic terminal, past data are recorded to draw indoor environmental change curves, and users can quickly meet personalized needs based on personal account information. Experimental tests show that the system can realize the monitoring of indoor environmental conditions and the automatic control of home equipment with good real-time and strong interactivity, which meets the design requirements of smart home
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