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    • 3. 发明申请
    • AUTOMATED DISCOVERY OF DEVICES IN LARGE UTILITY MONITORING SYSTEMS
    • 在大型实用监控系统中自动发现设备
    • WO2009140182A2
    • 2009-11-19
    • PCT/US2009/043408
    • 2009-05-11
    • SQUARE D COMPANYMCQUILLAN, JaymeBICKEL, Jon, A.
    • MCQUILLAN, JaymeBICKEL, Jon, A.
    • G01D4/00
    • G01D4/004Y02B90/242Y04S20/322
    • An auto-discovery algorithm attempts a scattered-read of register addresses of a device in a utility monitoring system whose identity is unknown to a computer system. If the scattered read is successful, and data from the device includes a device ID code that is matched against a lookup table of devices. If unsuccessful, the algorithm attempts a block-read, and if unsuccessful, iteratively checks each register against the lookup table to determine whether a match exists until either one is found or the device reports an illegal data address exception, whereupon the algorithm stops attempting to read from subsequent addresses. The algorithm analyzes the response from the communications driver of the computer system to determine whether the response is valid, and if not, what type of exception is reported. If a timeout occurs, the algorithm flags the device for a later retry scan, and moves on to attempt to discover the next device.
    • 自动发现算法尝试在公用事业监控系统中的设备的寄存器地址的散点读取,其身份对于计算机系统是未知的。 如果分散读取成功,并且来自设备的数据包括与设备的查找表匹配的设备ID代码。 如果不成功,则算法尝试块读取,并且如果不成功,则针对查找表迭代地检查每个寄存器以确定是否存在匹配,直到找到任何一个或者设备报告非法数据地址异常,于是该算法停止尝试 从后续地址读取。 该算法分析来自计算机系统的通信驱动程序的响应,以确定响应是否有效,如果不是,则报告什么类型的异常。 如果发生超时,则算法将该设备标记为稍后的重试扫描,并继续尝试发现下一个设备。