【摘要】 本文给出了一种基于AT89S52单片机的射频卡自动售货机通信控制器的设计与实现方法,实现了射频卡读卡器与投币式自动售货机之间的快速互联,实现了对城市现有投币式自动售货机进行城市一卡通的升级改造。本文阐述了该系统的总体结构、硬件部分电路设计,并叙述了相应软件程序设计流程。更多还原

【Abstract】 This paper gave a design of communication controlling unit used in a dispenser based on RF Card using the AT89S52 MCU , by which we can connect the RF_card reader to a coin style dispenser derectly, and update the widely used coin style dispenser quickly in many cities, so as to reach the idea of one city one card. This paper presented the entire instructure, and part of the hardware circuits, and talked about the main idea of the software design in detail.更多还原