参考文献 [3]董继成.一种新型安全的单片机密码锁[J】.电子技术应用, 2004(3):58-60 [4]耿德根,宋建国.AVR高速嵌入式单片机原理与应用【M]. 北京:北京航空航天大学出版社.2001 【l】张云,周明辉,周海林等.基于AT89S51的多功能电子密 码锁设计[J].电子设计工程,2010,18(6):23~25 [2]曹建林,孙捷,孙雪颖等.电子密码锁设计[J].成都信息工程 学院学报,2010,25(4):133~137 Design and I mplementation of Electronic Lock System Free frOm Power Supply YANG Zhen—lun .LIN Xu—ehen (1.School of Information Engineering,Guangzhou Panyu Polytechnic College,Guangzhou 51 1483; 2.Guangzhou Xinxianxing Electronics,Guangzhou 51 1442) Abstract:Presents electronic lock system which is free from power supply,the lock system contains three core components,including electronic lock,electronic key and lock manager device.The elec- tronic lock makes use of the power of the open door behaviors of users and collect the energy, the circuit transforms the energy to electronic power and uses the power to supply the whole electronic control system.The electronic lock system avoid the defect of those electronic lock system with the external power supply or battery-powered feather,it solve the problems which have limited the wider application of electronic locks.And because the electronic lock system also has hi【gh security and high ease—to—rise features,it has a good application prospect. Keywords:Free from Power Supply;Electronic Lock System;Single Chip Device;Electronic Lock Manager Device;Security (上接第77页) The Plan of the Quarters M IS System Plan Based on the Concept of Two-Way Management LI Zong—yan,LIU Xiao-jia,HUANG Ying ,ZHANG Li-jia0,ZHANG Lan—qiang (China University of Geoscience,Beijing 100083) Abstract:University dormitory management is an important part of logistics managementa dormitory ,management that adapted to hostel managed is the only way to modem office management for the university.With the B/S architecture and ASP.NET technology,mainly introduces the design and implementation of a dormitory management and describes the overall functional structure. the developing technology and the feasibility analysis of system design. Keywords:Dormitory;MIS;Bidirection ① 现代计算机2011.11