Title The Hotel Room Service Control System of Door Locks ——Design of Electronic Password Lock Based on SCM
Abstract
This paper introduces design of electronic password lock. AT89S52 is the core for this design. The input module uses a keyboard matrix form for real-time scanning. Digital tube display shows the data need to display. Unlocking module is based on PC feedback information to determine whether to unlock. Temperature acquisition module detects and displays room temperature, if it is found that the abnormal temperature, it will automatically alarm. The communication module using RS-485 serial communication transmits the data with the PC. The software is to use C language module programming to design electronic password lock. The design makes extensive use of computer's hardware resources, and has the advantages of simple structure, easy realization, low cost, is suitable for the units, enterprises, families and other occasions.
