基于CAN总线的纸币存取款一体机通信与控制系统的研究

Study on Communication and Control System of Cash Recycling ATM Based on CAN Bus

在分析纸币存取款一体机机芯的结构与功能后,针对其做为金融机具特有的安全性、实时性、稳定性需求,以及其本身功能的多样性和复杂性基础上,系统地构建了以数字信号控制器为控制主体、以CAN总线为通信主体的纸币存取款一体机的分布式控制与通信系统。并以实时性和稳定性为目标,详细设计和分析了包括系统各模块与整机机芯的整套控制与通信系统的硬件结构和软件实现方法,所设计的系统可充分满足存取款一体机的高速实时性、安全性、稳定性等要求。

This paper constructs a distributed control and communications system for Cash Recycling ATM based on CAN bus and digital signal controller, after analyzing its diversity and complexity in architecture and function, and its some unique requirements as a financial security, such as security, real-time, stability. And a hardware structure and software method of communication and control system for every module is presented systematically and detailedly based on stability and the real-time requirements. The trial machine proved that the above system and methods can meet the Cash Recycling ATM's high real-time, security, stability requirements.