网络性能监控与告警系统中,通常通过轮询网络状态和由代理主动发送事件通知来发现网络故障。网络性能监测的灵敏度与网络开销比率是评价监控系统性能的重要指标。文章提出了一种基于告警相关性的轮询与事件通知相结合的网络性能动态监...网络性能监控与告警系统中,通常通过轮询网络状态和由代理主动发送事件通知来发现网络故障。网络性能监测的灵敏度与网络开销比率是评价监控系统性能的重要指标。文章提出了一种基于告警相关性的轮询与事件通知相结合的网络性能动态监测算法,管理系统根据轮询所采集到的目标网络设备状态变化情况动态确定轮询周期,并结合网络设备的告警相关性对事件信息进行过滤,形成双重判断的告警滞后机制DJMA（Double Judgment based Alarm Delay）,防止信息重复上报,以减小网络开销。实验证明,该算法保持了较高的灵敏度,同时降低了网络管理开销。展开更多
This paper proposes a method for transformer fault detection system based on GSM network, through the current transformer, voltage sensor information, the known fault information attribute conditions, and the feedback...This paper proposes a method for transformer fault detection system based on GSM network, through the current transformer, voltage sensor information, the known fault information attribute conditions, and the feedback weighted coefficient through the adaptive feed forward, that can obtain high fault information attributes, thus filtering interference factors and timely get fault information properties. It solves the traditional transformer can only judge general fault and fault real-time alarm by GSM network, the system also can measure the transformer oil temperature and oil temperature alarm in super high temperature, to detect the power transformer operation parameters, and the fault running state （over-current, over-voltage, under-voltage, warning）. The actual test system show that, diagnosis ability of fault signal separation ability and small signal identification increases 17%. also meet the requirements of real-time.展开更多
the power network fault detection system can only analyze all kinds of fault signal in stationary sequence： the internal grid and external disturbance presents degeneration, tiny, signal intensity changes randomly fl...the power network fault detection system can only analyze all kinds of fault signal in stationary sequence： the internal grid and external disturbance presents degeneration, tiny, signal intensity changes randomly fluctuate, that will cause the system to detect the fault isolation ability of confusion and small fault signal is not strong; The article propose a method of power network fault detection for based on GSM, Through the underlying sensing equipment acquisition abnormal information of current, voltage power in the network and GSM networking scheme can filter the interference factors in extraction of fault information from and attribute value. The embedded gateway take STM32 chip as the core to monitoring data processing, to achieve a unified data management and user remote access, realizing method of system software are given, to construct the monitor management information platform. The actual test system show that, identification diagnosis ability of fault signal separation ability and small signal increases 17%, also meet the requirements.展开更多
文摘网络性能监控与告警系统中,通常通过轮询网络状态和由代理主动发送事件通知来发现网络故障。网络性能监测的灵敏度与网络开销比率是评价监控系统性能的重要指标。文章提出了一种基于告警相关性的轮询与事件通知相结合的网络性能动态监测算法,管理系统根据轮询所采集到的目标网络设备状态变化情况动态确定轮询周期,并结合网络设备的告警相关性对事件信息进行过滤,形成双重判断的告警滞后机制DJMA（Double Judgment based Alarm Delay）,防止信息重复上报,以减小网络开销。实验证明,该算法保持了较高的灵敏度,同时降低了网络管理开销。
文摘This paper proposes a method for transformer fault detection system based on GSM network, through the current transformer, voltage sensor information, the known fault information attribute conditions, and the feedback weighted coefficient through the adaptive feed forward, that can obtain high fault information attributes, thus filtering interference factors and timely get fault information properties. It solves the traditional transformer can only judge general fault and fault real-time alarm by GSM network, the system also can measure the transformer oil temperature and oil temperature alarm in super high temperature, to detect the power transformer operation parameters, and the fault running state （over-current, over-voltage, under-voltage, warning）. The actual test system show that, diagnosis ability of fault signal separation ability and small signal identification increases 17%. also meet the requirements of real-time.
文摘the power network fault detection system can only analyze all kinds of fault signal in stationary sequence： the internal grid and external disturbance presents degeneration, tiny, signal intensity changes randomly fluctuate, that will cause the system to detect the fault isolation ability of confusion and small fault signal is not strong; The article propose a method of power network fault detection for based on GSM, Through the underlying sensing equipment acquisition abnormal information of current, voltage power in the network and GSM networking scheme can filter the interference factors in extraction of fault information from and attribute value. The embedded gateway take STM32 chip as the core to monitoring data processing, to achieve a unified data management and user remote access, realizing method of system software are given, to construct the monitor management information platform. The actual test system show that, identification diagnosis ability of fault signal separation ability and small signal increases 17%, also meet the requirements.
