To solve the problem , the paper carries the overall system design to the parking lot management first . using radio frequency card as the management medium and the optimization of workflow enhances the operational efficiency and security performance 针对实际中出现的这些问题,本文首先对停车场管理系统进行了总体设计,采用了射频卡作为系统的管理介质,根据临时用户和固定用户的不同对工作流程进行了优化,从管理机制上来提高系统的运行效率和安全性能。
Since 1995 , first as a group to chengdu branches , there have been hundreds of homes shoufan , water control , power control , performance appraisal systems and other customers a complete rf card system sales , integration development , installation , after - sale system , complete solution , because the hope for your school / guidanwei services 自从1995年先达集团到成都建立分支机构以来，已有数百家售饭、水控、电控、考勤和其它系统客户，有完整的射频卡系统销售、集成开发、安装、售后服务体系，完整的解决方案，热忱希望能为贵校/贵单位服务
With the development of social economy and science technology , rf ( radio frequency ) card technology is more broadly applied by all kinds of trades , specially such as mass transit , wireless communication identify finance trade and safety - defend etc we use usually magnetic card or touch ic ( intelligent card ) in the past , but the shortage is that the card is read - write low efficiency frictional waste and short life , so that it ca n ' t guarantee the reliability of system for long term running 随着社会经济和科技的发展，射频卡技术越来越广泛地应用于各种行业，特别是公共交通、无线通信、身份识别、金融交易和安全防卫等行业。过去，智能卡应用领域常采用磁卡或接触式ic卡，但由于读写速度慢，易磨损，使用寿命短，无法保证系统长期运行的可靠性和方便性。
Spacious and comfortable designed rooms with intelligent security radio , frequency doorlock , airconditioning , direct dial phone , free broad land internet connection , cable television , mini bar , refrigerator , 24 - hours hot water supply . bathrooms with stall - type frosting glass . add spice to your journey 品位独特，每间客房采用防盗智能射频卡门锁，设有独立冷暖空调，国际直拨电话， 24小时宽带上网，有线电视、迷你酒吧、冰箱、 24小时供应热水，采用落地磨砂玻璃的浴室，使您的旅途倍添情趣。
Firstly the paper introduces the former development history and the future development direction about ic , then discusses the technology speciality and the application direction for all kinds of ic . secondly , the paper discourse the design & development process of the system hardware and system software in detail , including design of hardware circuit , introduce of the hardware circuit chip , program of the hardware driver , program of the serial communication , design of the multi - process & multi - thread program , database system construction , interface of system software etc . . after the finishing of the as - above part , the paper give the interface & result of the system running 本文首先简单介绍了智能卡的发展历史及未来发展方向，讨论不同智能卡的技术特点和应用方向，重点对射频技术和射频卡进行介绍；然后详细讲述系统硬件和系统软件设计及开发过程，对硬件电路功能构造、硬件电路采用的芯片、硬件驱动程序的编写、串口通讯程序编写、数据库系统构造和多进程多线程设计的实现及应用界面接口等作了具体详细的介绍；在介绍完系统硬件和软件设计后，给出系统的操作界面和部分运行结果；最后对本项目进行总结和展望，给出项目还需要改进的地方。
