Design Of Intelligent Electronic Lock Control System

Electronic lock system is more and more widely applied to modern communities and hotels. Traditional electronic lock system has simple structure and function, expensive price, small capacity and low safety. In this essay, intelligent electronic lock control system is designed and achieved with easy operation, safety and reliability, multi-function, low price and large capacity.First of all, this essay comprehensively analysed the market status and requirement of electronic lock system in domestic and worldwide, and sorted out characteristics of them. Based on this, it came up with a full set control system program and provided software development system which is required to finish hardware and software structure design.Secondly, according to system function requirement, it designed out control system hardware circuit which includes crystal oscillator circuit, power on reset circuit, alarm circuit, external reservoir circuit, LED indicator circuit, initialization operation circuit, location testing and door magnetism circuit, circumscribed K switch circuit, ID card reading circuit, wireless launch and receiving circuit, infrared ray launch and receiving circuit, stabilivolt power circuit, motor driving circuit, delay setting circuit, circumscribed entrance guard system connector circuit and anti-interference circuit. It has briefly stated the working principle of circuit in each module, introduced anti-interference measures of system hardware, and provided schematic diagram of intelligent electronic lock system circuit.Finally, it designed out system software based on KEIL C51 with software flow charts of each module and operation methods of each function of electronic lock. In each module, the subprogram flow chart includes add delete user card module, key opening lock alarm module, door status detection module, remote controller function setting module, ID card opening lock module, password setting module. At last, it finished the system software with anti-interference measures.Based on the above methods, it achieved intelligent electronic lock system. Testing result indicated that this system works stably and reliably with advantages such as low consumption, multi-function, low cost and large capacity, which meets the design requirement.