密钥更新常见问题及解决方法

Common Problems of Rekeying and Solution

密钥是智能电能表安全防护的关键,是实现"全费控"目标的基础,密钥更新是确保智能电能表费控安全性的重要保证。密钥更新失败则无法保护智能电能表电量、费率等重要信息及参数设置的准确性,影响控制指令的可靠执行。文章针对密钥更新常见问题进行了原因分析,并提出解决方法,使密钥下装成功率得到显著提高。

The key is safety protection crux of intelligent electricity meter,and it＇s the basis of realizing total charging control target,and rekeying is the important guarantee for ensuring security of intelligent electricity meter charging control.Rekeying failure will influence information and parameter setting accuracy of electricity quantity and rating.The paper makes analysis on rekeying common problem in laboratory verification,and puts forward solutions,thus obtains marked improvement of rekeying successes rates.