论文首先介绍了一些相关的技术背景资料，包括GPRS通信技术、短距离无线通信技术、CAN总线技术及非接触式智能卡技术等。
Firstly, some basic technical words and relevant information are introduced, such as the technology of GPRS communication, short-distance wireless communication, CAN bus, and contactless smart card.
智能卡技术在金融、通信、社保等领域中得到了广泛的应用。
The smart card technology is applied widely to such fields as the finance, communication, social security, etc.
应用推荐