Development of A Smart Lock System Based on Internet of Things and Cloud Platform

Aiming at the problems of smart lock, such as hidden danger and the inability to remotely monitor and manage the lock, the author develop a secure smart lock system based on the Internet of Things and cloud platform. The system consists of a cloud server, a mobile phone APP and a smart lock. Smart lock mainly includes STM32 main control chip, digital keyboard module and WIFI module. The digital keyboard module uses infrared light signal to communicate with STM32, and supports digital keyboard password unlocking. The module is connected to the cloud platform of the Internet. The APP is connected with the cloud platform to realize the remote control and management of the smart lock. In order to improve the reliability of intelligent lock system, the fault tolerant mechanism of hardware and the secure key scheme of software are designed. After normal operation and abnormal test, the system is safe and reliable, suitable for smart home door locks, etc.