Design And Development Of Intelligent Door Lock Control System

In recent years,with the heat of smart home,door lock is an important part of smart home,which plays an important role in protecting the security of home property.Its safety and convenience are generally concerned.The survey shows that although intelligent door locks are more and more widely used in high-end residential areas and hotels,the market share of intelligent locks is low in ordinary users.This is due to the high price of intelligent lock on the market,people's understanding of intelligent lock is not enough.Therefore,this paper designs an intelligent door lock control system with simple operation,safety and low price based on STM32F1 series chip.The system is composed of lock terminal,wireless data transmission module and remote service platform is composed of three parts,the hardware design,the functional requirements of the system analysis,draw the function module with flow chart,complete the software code,and debugging and testing system.The main contents of the system are as follows:(1)The design of intelligent lock terminal,single-chip microcomputer as the core,external fingerprint module,RFID card reader module,touch keyboard module,Bluetooth module,OLED display module,storage module,with peripheral circuit,fingerprint,password,card and Bluetooth lock function,through the OLED display system menu and user information.The user will unlock information stored in EEPROM,convenient local view and management.When users use unauthorized way,the number of locks is 3 times.Terminals will send early warning messages to the binding user cell phone through the wireless module and lock the system for 3 minutes,so that it can't operate.(2)In the aspect of wireless data transmission,the system adopts ATK-SIM800 C module,and establishes TCP connection between module and server.The main control sends the parameters of AT command configuration module and realizes data sending function.(3)Remote service platform,the remote service platform consists of three parts,the server,the MySQL database and the JSP page.The MVC framework is used to develop java web.Users can login to the server remotely,check the information of unlocking information in the home via web page,and get to know the family's entry and exit situation in time.The test results show that the function module of the system runs normally,the OLED screen can be displayed normally,and the user can use 4 ways to unlock.The user can see the user's unlocking information through the web page.The intelligent door lock control system designed in this paper can be used as part of the smart home,and can be used in ordinary home users or office places.