毕业论文--IC卡预付费水表的设计.docVIP

摘 要 为适应国家用水制度的改革，研究和利用现代化智能技术对自来水实行自动监控，减轻供水管理部门因“先供水后收费”造成的资金压力，减少每月抄表、收费所带来的麻烦和因收费问题带来的纠纷，用现代化科学技术手段改变自来水供水管理体制的落后现状，势在必行。智能化水表的推广，不但可以提高供水管理部门的工作效率实现了用水收费的电子化，而且在技术上为节约用水，合理用水创造条件。 本论文以智能IC卡水表系统为研究对象，重点探讨了基于MSP43OF413型超低功耗单片机在低功耗智能仪表上的应用与开发。论文首先提出利用IC卡技术智能水表系统的总体设计方案;然后系统地介绍了以MSP430F413单片机为核心的智能水表控制系统的组成、特点及各部分功能，设计了系统控制的硬件电路结构和研究了软件控制流程的实现，采用软硬件结合的方法，对系统的低功耗、抗干扰性设计及安全性问题作了一定的分析与研究；最后，对系统尚存在的问题及进一步开发和完善的内容和方向进行了探讨。 关键词：MSP430单片机；智能水表；IC卡技术 Abstract In order to adapt the reform of the nation system of water supply,studying and making use of the modern intelligence technique to realize the automatic supervision of the water supply,lightening the funds pressure because of“supply water first behind charge”of the department supplying water,reducing the trouble and dispute of copying the form and charging monthly,using the modern science technique change the current administration structure of using water and water supply industry is imperative under the situation.The application of intelligence water meter not improves work efficiency of the department supplying water and realizes using water electronically but also creats a condition for using water frugally and rationally. This thesis takes intelligence water-meter system based on IC card as the research object,and application and the development of the low power MSP430F413 microcontroller in the intelligence instrument is discussed detailedly.In this thsis,firstly,it puts forward a total design project of the intelligence water meter system which make use of the IC card technique;then it systematically introduces the composition,the characteristics and the functions of each part on the control system of this intelligence water meter which adopts low power MSP430F413 micro controller as the core,designs the hardware electric circuit structure of the control system and studies the software to control the system.According to the combination of software and hardware,low power,anti-interferece and the security of the c