The Design And Implement Of Fingerprint Lock Control System Baesd On STM32

With the continuous development of the Internet and embedded technologies,Access control based on embedded Web technology quickly becomes an important direction for the development of access control industry in the future,And the market for access control locks is gradually shifting to small private places.By using the combination of the access control lock and the remote video monitoring system,people can receive the remote alarm service of the access control lock at any time during the trip,And monitoring and controlling access control locks have higher practical value and broad market prospects.Taking the current practical needs as a starting point,this treatise designs a fingerprint lock control system based on STM32 as the main control chip,B/S mode,and embedded technology and Web technology.The main tasks include:(1)Hardware partsAccording to the analysis and research on the characteristics of the existing sensors,comprehensive consideration of the interface modes of different sensors,design the hardware circuit of the fingerprint lock control system.At the same time,the STM32 chip based on the ARM-Contex core is used to embed the μC/OS-II real-time operating system and control it.The hardware module includes a core processing module,a fingerprint sensor module,an output control module,a human-machine interaction module,and a power management module.(2)Software partsCompleted system application design.The μC/OS-II real-time operating system is embedded in the main control chip,and the Lw IP protocol stack is tailored and transplanted in the system;HTTP application programs are designed to control and coordinate the hardware modules through the driver program.Implemented automatic fingerprint recognition,remote monitoring and control functions;through the optimization of the system program,the system efficiency has been greatly improved;design and development of the graphical user interface,including dynamic pages and account passwords and some other designs.In the end,the system has realized the functions of fingerprint automatic identification,door lock switching,remote alarm,remote monitoring and control,and the functional modules work stably.Through the design of this topic,it not only ensures the safety of the family,but also brings more convenience to the occupants.