The Application of RF ID and Infrared Communication Circuit to Intelligent Door Locks

摘要

The author introduces how RF ID intelligent door locks replace ID cards to carry out the communication and operation management of door locks. The 32-bit ARM CPU LPC2114 has been chosen as the core and real time operating system HC/OS _II as the platform to conveniently complete such functions as reading cards with RF cards, real time processing, infrared communications and operations, etc. Thus heavy desktops have been replaced. To ensure stability and reliability, proper design of circuits that enable the RF ID card data reading and ARM CPU communications is of tantamount importance.