摘要
设计了以芯片FM2307为核心的单相CPU卡预付费复费率电能表。分析了利用添加热敏电阻模块和ESAM模块来增强CPU卡通信模块的硬件可靠性,以及如何通过双重认证、3DES加密算法等实现CPU卡通信的安全,最后给出了系统的测试结果。该电能表采用单芯片解决方案,精度高、功耗低、使用安全可靠,具有良好的市场前景。
A prepayment multi-rated single-phase electric power meter, which was based on chip FM2307 and CPU card, was designed. The hardware reliability design of the CPU card communication module by adding thermal resistor module and ESAM module was analyzed, and how to pass two-factor authentication and 3DES encryption al- gorithm to achieve the security of CPU card communication was explained. In the end, the system test results were given. This meter based on one single-chip had high precision, low power consumption, safe and reliable, and it also had good market prospects.
出处
《低压电器》
北大核心
2009年第10期6-9,12,共5页
Low Voltage Apparatus
基金
浙江省科技计划专项项目(2007C11072)
关键词
电能表
预付费
复费率
3DS加密算法
electric power meter
prepayment
multi-rated
3DES encryption algorithm
