电子门禁统的设计.docVIP

电子门禁系统的设计 摘 要 随着高科技的蓬勃发展，智能化管理已经走进了人们的社会生活。电子门禁系统作为一项先进的高科技防范和管理手段，已广泛应用于科研、工业、博物馆、酒店、商场、医疗监护、银行、监狱等行业。特别是由于其本身具有的隐蔽性、及时性，使得在许多领域的应用越来越广泛。所以，设计稳定性高、必威体育官网网址性强和易于扩展的较通用型门禁考勤系统具有重要的实际意义。 在整个系统的设计过程中，我首先参考了国内外同类产品的设计方法，然后结合实际，给出了设计方案，采用具有丰富多片内外设的LPC2368 ARM为微控制器，选用ZLG522S/LT读卡模块为读卡器（使用Mifare卡），外加小晶格OCM12864-9液晶显示器显示日期时间和刷卡信息，并采用HUIGANG继电器作为门锁开关，同时有门状态指示灯。 系统通过RS-485总线与上位机进行通信。该系统具有按用户与时间权限刷卡开门和记录功能、添加用户功能、设置时间权限和考勤时间段，还有同上位机时间同步和手动校对时间的功能，并能将记录信息通过SD卡导出。 该电子门禁系统具有实际应用中的单门门禁考勤系统的主要功能，并具有稳定性、可靠性，必威体育官网网址性强和人机界面友好的优点。 关键词：ARM微控制器，读卡模块，RS-485，LCD，SD卡 THE DESIGN OF ELECTRONIC ACCESS CONTROL SYSTEMS ABSTRACT With the booming of high technology, intelligent management has entered peoples social life. Electronic access control systems ，as an advanced high-tech means which used for prevention and management, has been widely used in scientific research, industry, museums, hotels, shopping malls, medical care, banks, prisons, etc. Especially for its characters of concealment and timeliness, the domain of its applications has becoming more and more widely. Therefore,here has important practical significance to design high stability,high confidentiality and strong expansion of more universal access time and attendance systems. Throughout the system’s design process,I at first consult domestic and international similar products’design methods，then，connected with reality,bring forward the design methods ,adopt LPC2368 ARM which has rich-chip peripherals as microcontrollers, ZLG522S/LT card reader (using Mifare card), with a small lattice OCM12864-9 liquid crystal display for the showing of the time and user information, using HUIGANG as relay switch locks, at the same time supply with status indicators. By using RS-485 bus ,the System communicate with the PC. The system could indentify card , then open the door and record fuctions according to the time and user’s information , also can add user features, set time limits of authority and attendance time, and sync with the PC time and time chec