摘要
针对股票业务的保密性及快速性要求，采用SIM卡加密技术，经DTMF信号传输信息而设计的单片机系统，实现了对股市的实时监控及其交易的安全性。实验结果表明，系统控制效果良好，应用前景广泛。
The paper deals with the introduction of the ndcroprocessor system in which simciphering technology and DTMT signal transmission are adopted so that shareholders' requirements for the secrecy and efficiency in share transaction are fulfilled and all-time monitoring of stocks market and safety of transaction are ensured. The experimental results show that this system can yield better control results and present a brighter prospect for application.
关键词
单片机
加密
双音多频
网络终端
电话
microprocessor
ciphering
double tone multi-frequency
network terminal
