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    • 1. 发明授权
    • Data communication apparatus
    • 数据通信装置
    • US06717982B1
    • 2004-04-06
    • US09534230
    • 2000-03-24
    • Takeo IshidaRyuzo HagiharaYasuhiro Yagi
    • Takeo IshidaRyuzo HagiharaYasuhiro Yagi
    • H04L516
    • H04M11/06H04L5/1446
    • A controller of a data communication apparatus according to the present invention stores information on each successful and unsuccessful data communication, a season, a data of the week, a time, and a data communication rate of the communication for each site in a data memory. The controller reads out a data communication rate at which a data communication succeeded from the data memory and directs a modem to conduct a communication at the data communication rate. A data communication is conducted at the directed data communication rate. These procedures ensure a secure link between sites and a secure data communication irrespective of a line distance between the sites etc.
    • 根据本发明的数据通信装置的控制器存储关于数据存储器中每个站点的每个成功和不成功的数据通信,季节,周的数据,时间和数据通信速率的信息。 控制器从数据存储器读出数据通信成功的数据通信速率,并指示调制解调器以数据通信速率进行通信。 以定向数据通信速率进行数据通信。 这些程序确保站点之间的安全链接和安全的数据通信,无论站点之间的线路距离如何。
    • 5. 发明授权
    • Diagnosis method and diagnosis apparatus of photovoltaic power system
    • 光伏电力系统诊断方法及诊断装置
    • US06892165B2
    • 2005-05-10
    • US09800515
    • 2001-03-08
    • Yasuhiro YagiKunimoto Ninomiya
    • Yasuhiro YagiKunimoto Ninomiya
    • G01R31/00G01R31/26G06F11/30G21C17/00H01L31/042
    • H02S50/10Y10S136/29
    • A reference output characteristic of a photovoltaic power system at the time of normal operation is obtained in accordance with an installation condition (topography of installation site, meteorological condition, configuration of the system itself, or the like) of the photovoltaic power system, an output characteristic in the photovoltaic power system during operation is actually measured, the obtained reference output characteristic and the measured output characteristic are compared and, based on the comparison result, the normality/abnormality of the output is diagnosed and, at the same time, the cause is diagnosed in the case of abnormality. The reference output characteristic at the time of normal operation can also be obtained based on the measured value of the past output characteristic.
    • 根据光伏电力系统的安装条件(安装地点的安装地点,气象条件,系统本身的配置等)获得正常工作时的光伏电力系统的参考输出特性,输出 实际测量光伏电力系统的运行特性,比较所获得的参考输出特性和测量输出特性,并根据比较结果诊断出输出的正常/异常,同时, 在异常情况下被诊断。 也可以基于过去的输出特性的测量值来获得正常工作时的基准输出特性。