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1.发明授权Energy monitoring system for a plurality of local stations with snapshot polling from a central station 失效用于具有来自中心站的快照轮询的多个本地站的能量监视系统
公开(公告)号：US5384712A
公开(公告)日：1995-01-24
申请号：US746019
申请日：1991-08-15
IPC分类号： G01R21/133 , G01R21/00 , G01R22/00
CPC分类号： G01R21/133
摘要： A PC computer monitors the energy consumed at a plurality of local stations placed behind the electrical meter of the utility company for individual billing of the local users, a bidirectional communication line being used therebetween. A command from the PC computer causes at each station the totalized energy to be stored, and thereafter the PC computer derives individually the results for separate estimations and central billing.
摘要翻译： PC计算机监视位于公用事业公司的电表之后的多个本地电台的能量消耗，用于本地用户的单独计费，其间使用双向通信线路。 来自PC计算机的命令导致每个站的总能量被存储，然后PC计算机分别得出结果以进行单独的估计和中央计费。
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2.发明授权Universal process control device and method for developing a process control loop program 失效用于开发过程控制回路程序的通用过程控制装置和方法
公开(公告)号：US4663704A
公开(公告)日：1987-05-05
申请号：US677442
申请日：1984-12-03
CPC分类号： G05B19/056 , G05B15/02
摘要： A distributed processing unit (DPU) or drop which performs process control and data acquisition functions in a distributed processing control system having a data highway linking a plurality of such units. A DPU functional processor accesses the local process I/O interface thereby continually receiving plant information for storage in digital form and subsequent use in the functional processor or for transmission along the data highway. DPU control programs use process values in a transparent fashion, that is without regard to whether these values were obtained through local process I/O interface or via the data highway. The DPU software structure is made up of execution software and support software. The execution software is a collection of data acquisition and process control programs which are developed at an engineer's console drop using a DPU programming language which operates in text and CRT graphic display modes, the latter programming modes allowing system documentation via hard copy graphic display printout. These programs are initiated, performed consecutively, and repeated at specified intervals. The support software initiates process loop execution. Control programs which have been presented to the DPU as representations of ladder diagrams for sequential control or process flow diagrams for continuous process control are executed in the DPU functional processor to achieve the required process control operation.
摘要翻译： 一种在具有连接多个这样的单元的数据公路的分布式处理控制系统中执行过程控制和数据获取功能的分布式处理单元（DPU）或分支。 DPU功能处理器访问本地进程I / O接口，从而连续地接收用于以数字形式存储的工厂信息并随后在功能处理器中使用或沿着数据高速公路传输。 DPU控制程序以透明的方式使用过程值，这不考虑这些值是通过本地进程I / O接口还是通过数据高速公路获得。 DPU软件结构由执行软件和支持软件组成。 执行软件是数据采集和过程控制程序的集合，它们是使用DPU编程语言（在文本和CRT图形显示模式下操作）在工程师控制台上开发的，后者的编程模式允许通过硬拷贝图形显示打印输出系统文档。 这些程序被启动，连续执行，并以指定的间隔重复。 支持软件启动进程循环执行。 在DPU功能处理器中执行已经呈现给DPU的控制程序作为用于连续过程控制的顺序控制或过程流程图的梯形图的表示，以实现所需的过程控制操作。
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公开(公告)号：US6021401A
公开(公告)日：2000-02-01
申请号：US858228
申请日：1997-05-19
申请人： David M. Oravetz , Ming-Horng Lee
发明人： David M. Oravetz , Ming-Horng Lee
CPC分类号： H02J3/00 , G06Q50/06 , G01R19/16542
摘要： A personal computer (PC) system determines a demand usage value at a predetermined time for a load powered by an electric power system. The computer system includes a database for storing energy usage values and time values; a PC software logging routine for acquiring the values of energy consumed from the electric power system by the load, for determining corresponding time values for times at which the energy was consumed by the load, and for storing the energy usage values and time values in the database; and a PC software calculation routine for retrieving a predetermined count plus one of pairs of those values from the database, with one of the time values corresponding thereto being about equal to the predetermined time. The calculation routine determines a first demand value from a pair of the energy usage values and a pair of the time values corresponding thereto, and also determines at least one second demand value from at least another pair of the energy usage values and at least another pair of the time values corresponding thereto. The calculation routine averages the first demand value with the at least one second demand value to determine the demand usage value which is determined over a time interval about equal to the predetermined count times a predetermined time interval.
摘要翻译： 个人计算机（PC）系统在由电力系统供电的负载的预定时间内确定需求使用值。 计算机系统包括用于存储能量使用值和时间值的数据库; PC软件记录程序，用于从负载中获取从电力系统消耗的能量的值，以确定负载消耗的能量的时间的相应时间值，以及用于将能量使用值和时间值存储在 数据库; 以及PC软件计算程序，用于从数据库检索预定计数加上这些值中的一对，其中对应于其中的一个时间值约等于预定时间。 计算例程从一对能量使用值和对应的一对时间值确定第一需求值，并且还从至少另一对能量使用值和至少另一对确定至少一个第二需求值 的时间值。 计算例程利用至少一个第二需求值对第一需求值进行平均，以确定在预定计数乘以预定时间间隔的时间间隔内确定的需求使用值。
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4.发明授权
公开(公告)号：US5872722A
公开(公告)日：1999-02-16
申请号：US806034
申请日：1996-09-04
申请人： David M. Oravetz , Ming-Horng Lee
发明人： David M. Oravetz , Ming-Horng Lee
CPC分类号： H02H7/30 , H02H3/006 , Y10S715/97
摘要： The trip curves of circuit protection devices in an electric power distribution system are individually adjusted and coordinated in a hierarchy of protection devices by graphical manipulation, such as by dragging with a mouse, segments of the trip curves presented on a display device. The existing parameter settings can be provided to the display device and the adjusted parameter settings returned to the protection devices manually, but preferably, a communications network provides automatic transfer of the settings in both directions.
摘要翻译： 电力分配系统中的电路保护装置的跳闸曲线通过图形操纵在诸如保护装置的层级中被单独地调整和协调，诸如通过用鼠标拖动在显示装置上呈现的跳闸曲线的段。 可以将现有参数设置提供给显示设备，并且手动地返回到保护设备的经调整的参数设置，但是优选地，通信网络提供在两个方向上的设置的自动传送。
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5.发明授权Energy monitoring system for a plurality of local stations with snapshot polling from a central station 失效用于具有来自中心站的快照轮询的多个本地站的能量监视系统
公开(公告)号：US5315531A
公开(公告)日：1994-05-24
申请号：US915171
申请日：1992-07-15
IPC分类号： G01R21/133 , G01R21/00 , G01R22/00 , G08C25/00 , H05K11/00
CPC分类号： G01R21/133
摘要： A PC computer monitors the energy, power, voltage, and current consumed at a plurality of local stations placed behind the electrical meter of the utility company for individual billing of the local users, a bidirectional communication line being used therebetween. A command from the PC computer causes at each station the power, voltage, current and totalized energy to be stored, and thereafter the PC computer derives individually the results for separate estimations and central billing.
摘要翻译： PC计算机监视在公用事业公司的电表之后的多个本地电台消耗的能量，功率，电压和电流，用于本地用户的单独计费，其间使用双向通信线路。 来自PC机的命令导致每个站的功率，电压，电流和总能量被存储，此后，PC计算机分别得出结果以进行单独的估计和中央计费。
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公开(公告)号：US06504693B1
公开(公告)日：2003-01-07
申请号：US09514035
申请日：2000-02-25
IPC分类号： H02H300
摘要： A network protector relay for a circuit breaker includes a microcontroller routine which provides a positive sequence network voltage from polyphase network voltages on a network bus. Another microcontroller routine provides a positive sequence phasing voltage from the polyphase network voltages on the network bus and polyphase feeder voltages on a feeder bus. A recloser circuit automatically recloses the circuit breaker connected between the polyphase feeder bus and the polyphase network bus in response to a function of a plurality of setpoints and the positive sequence phasing voltage which indicates a first flow of power from the polyphase feeder bus to the polyphase network bus. A receiver receives a remote close command. Another routine temporarily changes at least one of the setpoints in response to the received close command, in order to conditionally close the circuit breaker for a second flow of power from the polyphase feeder bus to the polyphase network bus, with the second flow of power being less than the first flow of power.
摘要翻译： 用于断路器的网络保护器继电器包括微控制器程序，其在网络总线上从多相网络电压提供正序列网络电压。 另一个微控制器程序从网络总线上的多相网络电压和馈线总线上的多相馈线电压提供正序相位电压。 重合器电路响应于多个设定点的功能和正序列相位电压自动重新连接连接在多相馈线总线和多相网络总线之间的断路器，该正序列相位电压指示从多相馈线总线到多相的第一次功率流 网络总线 接收器接收远程关闭命令。 另一个例程响应于接收到的关闭命令暂时改变设定值中的至少一个，以便有条件地关闭断路器用于从多相馈线总线到多相网络总线的第二次功率流，其中第二次功率为 小于第一流动力。
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7.发明授权Electrical switches with current protection interfaced with a remote station and a portable local unit 失效具有电流保护的电气开关与远程站和便携式本地单元接口
公开(公告)号：US5596473A
公开(公告)日：1997-01-21
申请号：US384728
申请日：1995-02-06
申请人： Richard A. Johnson , Joseph C. Engel , Michael F. Boccabella , David M. Oravetz , James I. Wise
发明人： Richard A. Johnson , Joseph C. Engel , Michael F. Boccabella , David M. Oravetz , James I. Wise
CPC分类号： H02H3/044 , H02H3/006 , H02H3/0935
摘要： An electrical switch with overcurrent protection communicates as a slave with a remote master station by sending return messages to the remote master station only in response to messages addressed to it. A portable unit plugs into the electrical switch and disables communications between the electrical switch and the remote master station. The portable unit then establishes communications with the electrical switch by sending a global message to the electrical switch requesting the unique address at successive baud rates until a return message containing the electrical switches' address is received. A communications module in the electrical switch transfers to a master mode in response to the global message in order to send the return message containing its unique address. It then reverts to the slave mode for response to subsequent messages from the portable unit containing the unique address. Either the remote master station or the portable unit can test the circuit breaker by sending a message containing a digital test current to the circuit breaker.
摘要翻译： 具有过电流保护功能的电气开关只能通过向远程主站发送返回消息，作为远程主站的从站，仅响应于寻址到远程主站的消息。 便携式设备插入电气开关并禁用电气开关和远程主站之间的通信。 然后，便携式单元通过向电气开关发送全局消息来建立与电气开关的通信，以电连接波特率请求唯一地址，直到接收到包含电开关地址的返回消息。 电气开关中的通信模块响应于全局消息传送到主模式，以便发送包含其唯一地址的返回消息。 然后，它恢复到从模式，以响应来自包含唯一地址的便携式单元的后续消息。 远程主站或便携式单元都可以通过向断路器发送包含数字测试电流的消息来测试断路器。
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