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This article presents an improved cuckoo search (ICS) algorithm based on the parametric adaptation mechanism and non-uniform mutation. In the ICS algorithm, the biased random walk operator is modified to take advantage of the neighbourhood information of the current solution, and then the control parameters of step size, discovery probability and scaling factor are directly integrated into the optimized problems. Meanwhile, the non-uniform mutation operation is used to adaptively tune the search step of the current optimal solution. To evaluate the feasibility and efficiency of the presented algorithm, three groups of benchmark test functions are employed to perform the validation analysis. Subsequently, to diagnose the vibration fault of a hydroelectric generating unit, a combinational model is built, which combines ICS with a back-propagation neural network (ICSBP). The experimental results indicate that ICS is competitive on the optimization problems, and the ICSBP approach can effectively improve the accuracy of vibration fault diagnosis for a hydroelectric generating unit. 相似文献
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FTTH网络是宽带光接入网的发展方向,可以为用户提供更高的带宽,但在FTTH网络建设中,ONT设备的管理是需要关注的一个问题。本文介绍了目前PON网络ONT的管理机制和家庭网关的管理机制,并在此基础上对FTTH网络中PONONT与家庭网关功能融合的ONT设备的远程管理机制进行了探讨。 相似文献
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水轮发电机组及其操作可视化仿真系统 总被引:5,自引:1,他引:5
为了减少停机时间和维修费用,水电厂正在逐步从计划检修向状态检修过渡,提高人们对设备及其操作的理解是进行正确的诊断分析、制定合理的维修方案的基础。该文采用3D建模技术,将虚拟现实技术应用到水轮发电机组及其操作的可视化仿真中,构建了可视化决策支持系统,通过该系统不仅可以看到机组的运行情况,还可以及时了解设备的报警信息。这大大提高了人们对水轮发电机组及其操作的理解,特别是其运动机制。同时对维护工程师而言,它也是一个非常有价值的培训工具。 相似文献
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