摘要
IC卡燃气表由电池供电,除了要求低功耗外,还必须具有高度的数据安全性、动作可靠性和防伪防盗功能,兼具低成本。提出了以MCU工作在间歇扫描工作模式下为基础的控制方案,论述了软硬件紧密配合的措施和数据安全防护技术,实现低成本下的低功耗高可靠的目标,同时提出了一些有条件下的改进方案。
In order to ensure the IC card Gas-meter powered by battery low power, low cost as well as high degree of data safety, work reliability and falsification protec tion, it introduces a intermittently scan working mode of MCU, together with the software and hardware measures.
