公开(公告)号：US5742512A

公开(公告)日：1998-04-21

申请号：US565464

申请日：1995-11-30

申请人： Ellen D. Edge ,  Roland J. Provost ,  Thomas Maehl ,  Gregory P. Lavoie ,  Mark J. Plis ,  Mark E. Hoffman ,  John E. Hershey

发明人： Ellen D. Edge ,  Roland J. Provost ,  Thomas Maehl ,  Gregory P. Lavoie ,  Mark J. Plis ,  Mark E. Hoffman ,  John E. Hershey

IPC分类号： G01R21/133 ,  G01R22/00 ,  G08B21/00 ,  G06F17/00

CPC分类号： G01R21/133 ,  G01R22/00

摘要： An electronic energy meter is described. The meter includes, in one form, voltage and current sensors having their outputs coupled to an analog to digital converter. The digital signals output by the converter are supplied to a digital signal processor (DSP) which outputs digitized metering quantities to a microcomputer. Using the metering quantities supplied by the DSP, the microcomputer performs additional metering calculations and functions. In one aspect, the present invention is directed to a method for determining whether an option board is being used and, if so, controlling meter operations in accordance with the coupled option board. In another aspect, the present invention is directed to a high function option board which, when enabled, operates as a master and the meter microcomputer automatically switches from its normal master mode to slave mode. In yet another aspect, the present invention is directed to converting the functionality of the electronic electricity meter from a first mode of operation to a second mode of operation. In still another aspect, the present invention is directed to a structure for avoiding, or minimizing, the loss of billing data when converting, or upgrading (or downgrading), meter operations.

摘要翻译： 描述了一种电子式电能表。 该仪表以一种形式包括其输出耦合到模数转换器的电压和电流传感器。 由转换器输出的数字信号被提供给数字信号处理器（DSP），数字信号处理器（DSP）将数字化的计量量输出到微型计算机。 使用由DSP提供的计量数量，微型计算机执行附加的计量计算和功能。 一方面，本发明涉及一种用于确定是否正在使用选件板的方法，如果是，则根据所耦合的选件板来控制仪表操作。 在另一方面，本发明涉及一种高功能选项板，当使能时，其作为主机操作，并且仪表微计算机自动从其正常主模式切换到从模式。 在另一方面，本发明涉及将电子电表的功能从第一操作模式转换到第二操作模式。 另一方面，本发明涉及一种用于在转换或升级（或降级）仪表操作时避免或最小化计费数据丢失的结构。

公开(公告)号：US5673196A

公开(公告)日：1997-09-30

申请号：US564543

申请日：1995-11-30

申请人： Mark E. Hoffman ,  Roland J. Provost ,  Thomas Maehl ,  Gregory P. Lavoie ,  Mark J. Plis ,  David D. Elmore ,  Warren R. Germer ,  Jeffrey W. Mammen ,  Donald F. Bullock ,  Sivarama Seshu Putcha ,  Daniel A. Staver ,  Arthur C. Burt ,  Curtis W. Crittenden ,  Ellen D. Edge

发明人： Mark E. Hoffman ,  Roland J. Provost ,  Thomas Maehl ,  Gregory P. Lavoie ,  Mark J. Plis ,  David D. Elmore ,  Warren R. Germer ,  Jeffrey W. Mammen ,  Donald F. Bullock ,  Sivarama Seshu Putcha ,  Daniel A. Staver ,  Arthur C. Burt ,  Curtis W. Crittenden ,  Ellen D. Edge

IPC分类号： G01R21/133

CPC分类号： G01R21/1331

摘要： Line voltage and line current signals are sensed on a power line having at least one conducting path. The sensed line voltages and line currents are converted into a digital signal. A phase-to-neutral voltage signal and phase current signal are computed from the digital signal to thereby define a phase of the power line. An interval of orthogonality is determined from the sensed voltage and current signals, coinciding with passage of an integral number of cycles of a fundamental frequency reference signal which is computed from the computed phase-to-neutral voltage signal. A vector metering quantity is computed for the determined interval of orthogonality from the computed phase-to-neutral voltage signal and the computed phase current signal. The vector metering quantities to be computed may be identified and computed based upon an associated detent. The vector metering quantity is also computed based on an identified circuit topology.

摘要翻译： 在具有至少一个导电路径的电力线上检测线电压和线电流信号。 感测到的线路电压和线路电流被转换为数字信号。 从数字信号计算出相电压中性点电压信号和相电流信号，从而定义电力线的相位。 从感测的电压和电流信号确定正交性的间隔，其与从计算出的相电压信号计算的基频信号的整数倍的循环相一致。 根据计算的相电压信号和计算出的相电流信号，计算确定的正交间隔的向量计量量。 可以基于相关联的制动器来识别和计算要计算的矢量计量量。 也可以基于所识别的电路拓扑来计算矢量测量量。

公开(公告)号：US5924051A

公开(公告)日：1999-07-13

申请号：US954419

申请日：1997-10-20

申请人： Roland J. Provost ,  Thomas Maehl ,  Gregory P. Lavoie ,  Ellen D. Edge ,  Mark J. Plis

发明人： Roland J. Provost ,  Thomas Maehl ,  Gregory P. Lavoie ,  Ellen D. Edge ,  Mark J. Plis

IPC分类号： G01R21/133 ,  G01R11/63

CPC分类号： G01R21/133

摘要： A demand electronic electricity meter having load profile recording capabilities is presented. Load profile recording requires memory for storing the recorded information, whereby either on-board memory or external memory is required. Load profile parameters include the number of channels (e.g., 1, 2 or more channels), interval size (e.g., 1, 5, 10, 15, 30 or 60 minutes), quantities to be recorded (e.g., kWh and kvarh, kVAh, or Qh) and channel scalar/divisor (e.g., for each channel, a 2 byte divisor and a 2 byte scalar). With two channels, only two quantities are available for recording, kWh and the one other quantity that the meter has been configured to record, (e.g., kvarh, KVAh, or kQh). For each quantity selected, snapshots of the corresponding total accumulator; (i.e. total kWh and total kvarh, kVAh or kQh) are automatically maintained.

摘要翻译： 提出了一种具有负荷曲线记录功能的需求电子电表。 负载配置文件记录需要用于存储记录信息的存储器，由此需要板载存储器或外部存储器。 负载曲线参数包括通道数（例如，1,2个或更多个通道），间隔大小（例如，1,5,10,15,30或60分钟），要记录的数量（例如，kWh和kvarh，kVAh ，或Qh）和通道标量/除数（例如，对于每个通道，2字节除数和2字节标量）。 使用两个通道，只有两个数量可用于记录，kWh和仪表已配置为记录的其他数量（例如kvarh，KVAh或kQh）。 对于所选择的每个数量，相应的总累加器的快照; （即总kWh和总kvarh，kVAh或kQh）被自动维持。