Embedded IoT technology has promoted the landing and development of smart homes. Face recognition technology, one of the applications of artificial intelligence, is also widely used in daily applications such as payment, access control management and so on. This topic is proposed based on this background. The purpose of the project is to develop a visitor recognition and reminder system based on face recognition. The purpose is to apply it to residential access control management to achieve visitor identity recognition and intelligent reminder. The subject system adopts the front-end separation architecture, the back-end uses Python language Flask micro-Web framework, and the front-end uses Ajax to realize the data exchange with the back-end. The system mainly realizes the functions of visitor recognition, visit reminder, remote access control management, visitor management and so on based on face recognition technology. The system is developed and implemented in Python language, and the system has good portability and strong compatibility. The non-functional and functional tests after the completion of the system show that it can meet the application requirements, better achieve the identification and reminder of residential visitors, and improve the security and convenience of the living environment.

Keywords : Visitor recognition and reminder; face recognition; Flask; Python.