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：US5715390A

公开(公告)日：1998-02-03

申请号：US564971

申请日：1995-11-30

申请人： Mark E. Hoffman ,  John E. Hershey

发明人： Mark E. Hoffman ,  John E. Hershey

IPC分类号： G01R21/133 ,  G01R22/00 ,  H04L9/32 ,  G06F15/20 ,  G06F7/04

CPC分类号： G01R21/1333 ,  G01R22/00 ,  G06Q50/06 ,  H04L9/3226 ,  H04L2209/56

摘要： An electricity meter having a protected enabling scheme for activating meter options and upgrades is presented. The meter has a unique serial number, which includes bit-flags indicating which options have already been enabled, stored in the non-volatile RAM. Each option which is not enabled must be requested and a password verified before it can be utilized. At least one password is stored in a read protected location in the non-volatile RAM. The meter is in communication with a computer, e.g., a desktop or laptop type of computer. The password is generated by processing a secret software key and the unique serial number of the meter with an authentication algorithm. The computer is loaded with an upgrade software program, which includes the authentication algorithm. A hardware key which stores a secret software key is attached to a parallel port of the computer. The upgrade software program reads the serial number from the non-volatile RAM in the meter and reads the secret software key from the hardware key, then processes the read secret software key and the read unique serial number of the meter with the stored authentication algorithm to generate at least one password. The password along with an upgrade command are presented to the meter where they are compared to the read-protected password in the meter, and, if there is a match, then the upgrade command initiates codes in the meter to implement one or more stored options or upgrades.

摘要翻译： 提出了具有用于激活仪表选项和升级的受保护的启用方案的电表。 该仪表具有唯一的序列号，其中包括指示已经启用哪些选项的位标记，存储在非易失性RAM中。 必须请求未启用的每个选项，并在使用密码之前对其进行验证。 至少一个密码存储在非易失性RAM中的读保护位置。 该计量器与计算机通信，例如台式或膝上型计算机。 通过使用认证算法处理秘密软件密钥和仪表的唯一序列号来生成密码。 计算机装有升级软件程序，其中包括验证算法。 存储秘密软件密钥的硬件密钥被附加到计算机的并行端口。 升级软件程序从仪表中的非易失性RAM读取序列号，并从硬件密钥读取密钥，然后使用存储的认证算法对读取的密钥和读取的唯一序列号进行处理 生成至少一个密码。 密码与升级命令一起显示给仪表，与仪表中的读取保护密码进行比较，如果有匹配，则升级命令启动仪表中的代码以实现一个或多个存储的选项 或升级。

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：US06784806B1

公开(公告)日：2004-08-31

申请号：US09486523

申请日：2000-02-28

申请人： Robert E. Lee, Jr. ,  Mark R. Arsenault ,  Marjorie J. Mancuso ,  Virginia H. Zinkowski ,  Warren R. Germer ,  William O. Rector ,  Mark E. Hoffman ,  John J. Pazdon, Jr. ,  Larry A. Schmidt ,  Donald Naik ,  Melissa J. Pazdon

发明人： Robert E. Lee, Jr. ,  Mark R. Arsenault ,  Marjorie J. Mancuso ,  Virginia H. Zinkowski ,  Warren R. Germer ,  William O. Rector ,  Mark E. Hoffman ,  John J. Pazdon, Jr. ,  Larry A. Schmidt ,  Donald Naik ,  Melissa J. Pazdon

IPC分类号： G08B2300

CPC分类号： G06Q20/127 ,  G01R21/133 ,  G07F15/003 ,  G07F15/10 ,  G07F17/0014

摘要： An electronic electricity meter which, in one embodiment, includes a modem board, or unit, coupled to the meter microcomputer and exchanges information between the meter and a central computer is described. Using signals supplied by the meter microcomputer and the central computer, the modem unit microcomputer can determine whether to exchange information between the meter and the central computer and the proper time at which the information should be exchanged. In an exemplary embodiment, the modem unit detects various conditions within the meter and responds by exchanging information with the central computer at a proper, or pre-defined, time. The modem unit has two different basic modes, or states, of operation. These states of operation are sometimes referred to as the call originate mode and the call answer mode. Call originate refers to the mode of the unit when a condition occurs in meter 10 and information is being transmitted to the central computer from the modem unit utilizing a telephone line. The call is originated upon occurrence, for example of a power outage to the meter. In the call answer mode, the central computer originates a call to the meter. The central computer can then transfer information to the meter, for example a new program can be stored in the modem unit memory.

摘要翻译： 描述了在一个实施例中包括耦合到仪表微计算机并且在仪表和中央计算机之间交换信息的调制解调器板或单元的电子电表。 使用仪表微机和中央计算机提供的信号，调制解调器单元微型计算机可以确定是否在仪表和中央计算机之间交换信息以及信息应该交换的适当时间。 在示例性实施例中，调制解调器单元检测仪表内的各种状况，并通过在正确或预定义的时间与中央计算机交换信息进行响应。 调制解调器单元具有两种不同的基本模式或状态。 这些操作状态有时被称为呼叫发起模式和呼叫应答模式。 呼叫起始指的是在仪表10中发生状况时的单元的模式，并且使用电话线从调制解调器单元将信息发送到中央计算机。 呼叫发生时，例如电表断电。 在呼叫应答模式下，中央计算机发起对电表的呼叫。 中央计算机然后可以将信息传送到仪表，例如可以将新的程序存储在调制解调器单元存储器中。