With the development of current electronic technology, numerous high-speed data acquisition systems provide a variety of potential benefits. This article describes a high-speed data acquisition system which consists o...With the development of current electronic technology, numerous high-speed data acquisition systems provide a variety of potential benefits. This article describes a high-speed data acquisition system which consists of ECL logic and TTL logic devices, samples and stores data with a 1 GHz clock. This system is accomplished easily and works stably. A performance test of this system has been undertaken and the results show that the effective number of bits （ENOB） is more than 6.5 bits.展开更多
Hefei Light Source(HLS)is a synchrotron radiation light source that primarily produces vacuum ultraviolet and soft X-rays.It currently consists of ten experimental stations,including a soft X-ray microscopy station.As...Hefei Light Source(HLS)is a synchrotron radiation light source that primarily produces vacuum ultraviolet and soft X-rays.It currently consists of ten experimental stations,including a soft X-ray microscopy station.As part of its on-going efforts to establish a centralized scientific data management platform,HLS is in the process of developing a test sys-tem that covers the entire lifecycle of scientific data,including data generation,acquisition,processing,analysis,and de-struction.However,the instruments used in the soft X-ray microscopy experimental station rely on commercial propriet-ary software for data acquisition and processing.We developed a semi-automatic data acquisition program to facilitate the integration of soft X-ray microscopy stations into a centralized scientific data management platform.Additionally,we cre-ated an online data processing platform to assist users in analyzing their scientific data.The system we developed and de-ployed meets the design requirements,successfully integrating the soft X-ray microscopy station into the full lifecycle management of scientific data.展开更多
针对复杂多变的工作环境给风电机组状态监测带来的挑战,提出了一种基于深度学习和注意力机制组合的状态监测与健康评估方法。首先,将风电机组数据采集与监控(supervisory control and data acquisition,简称SCADA)系统数据进行预处理;其...针对复杂多变的工作环境给风电机组状态监测带来的挑战,提出了一种基于深度学习和注意力机制组合的状态监测与健康评估方法。首先,将风电机组数据采集与监控(supervisory control and data acquisition,简称SCADA)系统数据进行预处理;其次,将卷积神经网络(convolutional neural networks,简称CNN)和长短期记忆网络(long short-term memory,简称LSTM)相结合提取数据的时空特征,并引入注意力机制(Attention)为LSTM分配相应的权重;然后,利用指数加权移动平均来设置阈值,通过分析均方根误差实现风电机组的状态监测;最后,通过实例对风电机组的主轴承、发电机定子和叶片变桨电机状态进行监测分析和健康评估,验证该方法的有效性。展开更多
文摘With the development of current electronic technology, numerous high-speed data acquisition systems provide a variety of potential benefits. This article describes a high-speed data acquisition system which consists of ECL logic and TTL logic devices, samples and stores data with a 1 GHz clock. This system is accomplished easily and works stably. A performance test of this system has been undertaken and the results show that the effective number of bits （ENOB） is more than 6.5 bits.
基金supported by the Fundamental Research Funds for the Central Universities(WK2310000102)。
文摘Hefei Light Source(HLS)is a synchrotron radiation light source that primarily produces vacuum ultraviolet and soft X-rays.It currently consists of ten experimental stations,including a soft X-ray microscopy station.As part of its on-going efforts to establish a centralized scientific data management platform,HLS is in the process of developing a test sys-tem that covers the entire lifecycle of scientific data,including data generation,acquisition,processing,analysis,and de-struction.However,the instruments used in the soft X-ray microscopy experimental station rely on commercial propriet-ary software for data acquisition and processing.We developed a semi-automatic data acquisition program to facilitate the integration of soft X-ray microscopy stations into a centralized scientific data management platform.Additionally,we cre-ated an online data processing platform to assist users in analyzing their scientific data.The system we developed and de-ployed meets the design requirements,successfully integrating the soft X-ray microscopy station into the full lifecycle management of scientific data.
文摘针对复杂多变的工作环境给风电机组状态监测带来的挑战,提出了一种基于深度学习和注意力机制组合的状态监测与健康评估方法。首先,将风电机组数据采集与监控(supervisory control and data acquisition,简称SCADA)系统数据进行预处理;其次,将卷积神经网络(convolutional neural networks,简称CNN)和长短期记忆网络(long short-term memory,简称LSTM)相结合提取数据的时空特征,并引入注意力机制(Attention)为LSTM分配相应的权重;然后,利用指数加权移动平均来设置阈值,通过分析均方根误差实现风电机组的状态监测;最后,通过实例对风电机组的主轴承、发电机定子和叶片变桨电机状态进行监测分析和健康评估,验证该方法的有效性。
