【作者】 初振云；

【导师】 马庆云； 曹茂永；

【作者基本信息】 山东科技大学 ， 测试计量技术及仪器， 2005， 硕士

【摘要】 本文规划了智能小区射频卡四表一卡通系统的整体方案,然后重点对其中的卡读写器环节进行了研究。目前,在四表管理系统中,主要有两大方向:一个是多用户表系统,另一个是IC卡表系统,亦称为预付费系统。IC卡表系统从根本上解决了收费问题,它包括两个分支:接触式IC卡系统和RF卡系统。在目前的这些四表方案中,由于多用户系统和接触式IC卡系统的诸多固有缺陷,使得系统无法长期稳定的运行。射频卡技术是一种新技术,不但继承了接触式IC卡的各种优点,而且成功地将RFID技术和IC卡技术结合起来,解决了无源和无线数据传输两大难题,得到了广泛的应用。 卡读写器包括MCU模块、卡读写模块、时钟模块、显示模块等。系统中使用的MCU是16位MSP430系列低功耗产品,资源丰富,工作稳定。文中详细的介绍了卡读写器的硬件电路设计、相关软件设计、元器件的选择等。最后,着重介绍卡读写器与上位机的串口通讯程序的设计。IC卡技术已经融入了社会信息化的主流,广泛应用于社会的各个领域。并且与网络技术相结合,发展前景广阔。文章所研究的是以智能小区为基础、以射频卡技术(?)载体的四表一卡通系统,克服了多用户表系统和接触式IC卡表系统的弊端,并且具有良好的扩展性,符合智能小区发展的要求。更多还原

【Abstract】 This thesis planned a four-meter one-card-through system scheme of Intelligent Residential Area first, and then it introduced the design of the RF card reader especially. Now, there are two pieces of developing direction mainly in the four-meter filed: one is multiple-meter system, and the other is IC card-meter system, which is called prepaid-fee system also. IC card-meter system is compacted by contact-type IC card-meter system and RF card-meter system. But the first two types have some inherent deficiencies which make the system working unsteadily at long run. RF card not only inherits various of advantages of contact-type IC card, but also combines the radio frequency technique and the technique of IC card, resolving two great technological problems: no power source and wireless data transmission, which is a great break-through of electronic technology.The RF card reader mainly includes MCU module, RF card read/write module, clock module, display module, and so on. The low power consumption MCU module, MSP430F149, is the core of the reader. This paper introduced its electric circuit, related software and the selection of the chips, etc. The latest part of the paper is the communication between MSP430 and the PC. The RF card system is the most potential system among the four-meter systems by now, and it will affect the inhabitants’ livings further with its development.更多还原