摘要
为解决原流量计不能实现预付费功能的缺陷,提出了一种基于MSP430F249单片机和接触式IC卡,对MLF-100流量计进行改造方案。介绍了系统的软硬件构成,着重阐述了流量读取、IC卡控制等模块的实现过程。
A design of an IC card control system, based on MSP430F249 single-chip, for extending the application ofMLF-100 flow- meters is introduced in the paper. The composition of the system and functions of each part are given, and it is focused on the principle of flow reading, IC card consumption and valve control. The design is meaningful to similar systems.
出处
《自动化与仪器仪表》
2011年第5期69-69,73,共2页
Automation & Instrumentation
