| 1. | Blind separation technique of modulatory fault source signal 调制故障源信号盲分离技术 |
| 2. | On - line digital displays the operation parameters , alarming and construction 在线数字显示运行状态,故障时报警并显示故障源 |
| 3. | 3 . to enhance the ability of fault recognition , a new method for searching the fault origin from the multivariate statistical aspect is presented 为了提高多元统计过程控制的故障识别能力,提出了一种基于多元统计过程控制的识别故障源的新方法。 |
| 4. | The fault origin can be efficiently found out by calculating the probability of each industrial variable making the sample abnormal and analyzing the industrial process 通过求出故障采样点上各工业变量导致采样点异常的概率,并结合工业过程的特点,可以有效地找出故障源。 |
| 5. | A new decision - level fusion method is put forward : after probability distribution of each sensor is decision is obtained , a fuzzy integrated function is used to fuse the information and diagnose the fault 针对这种情况,如何准确地判断是否存在故障并尽快找到故障源就取决于合适的融合方法。 |
| 6. | Then an oms protection scheme was designed and realized in chapter 4 . this paper describers the technical scheme , hardware , software and experimental result of the system 本文还针对网络最大故障源?光缆故障,设计完成了一个光层复用段保护系统,给出了详细的软、硬件结构、通信协议及测试结果。 |
| 7. | Through event management and knowledge management , the raw event , qua the fault analyzed , constantly checked , and redundance removed one not the sole one , is presented to the administrator and than forms an effective security event 通过事件管理和知识管理,原始的安全事件不再作为孤立事件上报给管理员,而是经过故障源分析、持续性检查,去除冗余信息,形成了有效安全事件。 |
| 8. | Knowledge about the faults of a process control system is obtained automatically by rough set reduction . an entropy - based criterion is used to measure the uncertainty of it . methods of forward and backward fault diagnosis and how to build up decision tables for each fault source are given 利用粗糙集进行故障知识的发现,寻找系统各个故障源信号之间合理的逻辑关系,提出了一种构造逻辑故障树的智能方法,并给出了相应的故障树评价标准。 |
| 9. | Multivariate statistical process control is an important branch in the research of fault diagnosis . in this dissertation , important aspects of process fault detection based on multivariate statistical theory are presented and studied systematically . a new method is presented to find the fault origin from the multivariate statistical aspect 基于多元统计过程控制的故障诊断方法是故障诊断领域的一个重要研究分支,本论文以多元统计理论为基础,研究了故障诊断技术的若干重要方面,提出了一种从统计学角度分析故障源的新方法。 |
| 10. | Fault detection ( fd ) technology supervises the status of production process , detect the fluctuation and faults , and locate the fault sources , then isolate and eliminate them . in this way , calamities are prevented and fluctuations of quality of products are reduced 故障诊断技术通过监督生产过程的运行状态,不断检测过程的变化和故障信息,并在故障发生后,迅速定位故障源,隔离并消除故障,以防止灾难性事故的发生,同时减少产生质量的波动,提高产品的竞争力。 |