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公开(公告)号：US5294916A
公开(公告)日：1994-03-15
申请号：US824636
申请日：1992-01-23
CPC分类号： F28B11/00 , B01D1/0082 , B01D3/34 , B01D5/0051 , Y10S261/11 , Y10T137/7306
摘要： An apparatus controls the treatment of water that flows through a cooling system. The electrical conductivity of the water is sensed. A valve control opens a system drain valve when the sensed conductivity is greater than a threshold, and closes the drain valve when the conductivity drops below the threshold by a given amount. The water drained form the system is replenished through an inlet and a mechanism measures the volume of water added to the cooling system. Chemicals to treat the water are fed into the system when specified volumes of water have been added. The sensing of conductivity can be inhibited for a certain period following the application of the chemicals. A possible system malfunction is indicated when the conductivity does not drop below the threshold after the drain valve is open for a given period of time.
摘要翻译： 设备控制流经冷却系统的水的处理。 感测水的电导率。 当检测到的电导率大于阈值时，阀门控制器打开系统排放阀，并且当电导率低于阈值一定量时关闭排水阀。 通过入口补充系统排出的水，并且机构测量加入到冷却系统中的水的体积。 当加入特定体积的水时，将处理水的化学品加入系统。 在施用化学物质后一定时间内，可以抑制电导率的检测。 当泄放阀打开一段给定的时间后，电导率不会下降到阈值以下时，可能会出现系统故障。
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公开(公告)号：US4912623A
公开(公告)日：1990-03-27
申请号：US179969
申请日：1988-04-11
申请人： Glen W. Rantala , Donald R. Janke
发明人： Glen W. Rantala , Donald R. Janke
IPC分类号： G06F15/16 , G05B19/05 , G06F15/177
CPC分类号： G05B19/052
摘要： A multiple processor communications system including a control processor and a scan processor having its own program counter enabling the efficient execution of subroutines. The scan processor directly accesses a compiled user memory which contains its operating program and also directly accesses the image memory which contains the input and output data to perform the computations required by the program. The system includes error codes for distinguishing various error conditions including collision error conditions indicating illegal commands to the scan processor when it is scanning and parity errors in the compiled user memory and in the image memory.
摘要翻译： 多处理器通信系统包括控制处理器和具有其自己的程序计数器的扫描处理器，能够有效执行子程序。 扫描处理器直接访问包含其操作程序的编译用户存储器，并且还直接访问包含输入和输出数据的图像存储器，以执行程序所需的计算。 该系统包括用于区分各种错误条件的错误代码，包括当扫描处理器扫描时指示非法命令的冲突错误条件以及编译的用户存储器和图像存储器中的奇偶校验错误。
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公开(公告)号：USRE36263E
公开(公告)日：1999-08-03
申请号：US645606
申请日：1996-05-14
申请人： Donald R. Janke , Kim J. Watt , Dirk I. Gates
发明人： Donald R. Janke , Kim J. Watt , Dirk I. Gates
IPC分类号： G06F15/167 , G05B19/05 , G06F19/00 , G06F15/16
CPC分类号： G05B19/052 , G05B2219/1132 , G05B2219/1159 , G05B2219/1208
摘要： A communication network for programmable logic controllers (PLCs) wherein selected memory means of each PLC have at least two ports directly accessible by other PLCs and certain registers of the PLCs are identical to enable efficient, high-speed transfer of blocks of data between the PLCs.
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4.发明授权
公开(公告)号：US5234601A
公开(公告)日：1993-08-10
申请号：US951605
申请日：1992-09-28
申请人： Donald R. Janke , Frank Kunesh , Michael G. Busby
发明人： Donald R. Janke , Frank Kunesh , Michael G. Busby
CPC分类号： B01J49/0095
摘要： A water treatment apparatus has a tank that contains a resin bed through which water flows. The apparatus is controlled by occasionally measuring the conductivity of the resin bed at two spaced apart locations to produce first and second conductivity measurements. The ratio of the two conductivity measurements is calculated periodically. The present ratio value, along with the minimum and maximum ratio values that occurred since a previous regeneration of the resin bed, are used to determine the movement of an exhaustion front through the resin bed. A probability of exhaustion also is determined and when that probability exceeds a given value, regeneration of the resin bed is initiated. The conductivity measurements are used to determine if the resin bed has lost efficiency and in which event a warning signal is sent to the user. During regeneration, the conductivity at one of the locations in the resin bed is monitored to detect whether a regenerant has entered the tank; if not another warning signal is sent to the user.
摘要翻译： 水处理装置具有包含水流过的树脂床的罐。 该装置通过偶尔测量两个间隔开的位置处的树脂床的导电性来进行控制，以产生第一和第二电导率测量。 周期性地计算两个电导率测量的比率。 使用当前比率值以及从树脂床的先前再生以来发生的最小和最大比值确定通过树脂床的排气前缘的运动。 确定耗尽的概率，当该概率超过给定值时，开始树脂床的再生。 电导率测量用于确定树脂床是否失去了效率，在这种情况下向用户发送警告信号。 在再生期间，监测树脂床中的一个位置处的导电性，以检测再生剂是否进入罐; 如果不是另一个警告信号被发送给用户。
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5.发明授权Peer-to-peer register exchange controller for industrial programmable controllers 失效用于工业可编程控制器的点对点寄存器交换控制器
公开(公告)号：US4992926A
公开(公告)日：1991-02-12
申请号：US258779
申请日：1988-10-17
IPC分类号： G05B19/05
CPC分类号： G05B19/052 , G05B2219/1132 , G05B2219/1159 , G05B2219/1208
摘要： A communication network for programmable logic controllers (PLC) wherein selected memory means of each PLC has at least two ports directly accessible by other PLC and certain registers of the PLC are identical. Each PLC further has an interblock gap timer to signal the PLC when its transmit time slice is to occur. The time slice consists of a block transmit time and an interblock gap time. The total update time has been optimized to engable efficient, high-speed transfer of blocks of data between the PLCs.
摘要翻译： 用于可编程逻辑控制器（PLC）的通信网络，其中每个PLC的选择的存储器装置具有可由其他PLC直接访问的至少两个端口，并且PLC的某些寄存器是相同的。 每个PLC还具有一个间隔间隙定时器，用于在PLC发送其发送时间片时发信号通知PLC。 时间片由块发送时间和帧间间隔时间组成。 总更新时间已经优化，可以在PLC间实现高效，高速的数据传输。
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公开(公告)号：US06546344B1
公开(公告)日：2003-04-08
申请号：US09608650
申请日：2000-06-30
申请人： James A. Rodrian , Donald R. Janke
发明人： James A. Rodrian , Donald R. Janke
IPC分类号： G01R2908
CPC分类号： G01V3/081
摘要： The present invention is directed to a method and apparatus for measuring a magnetic field and determining whether an anomaly is present based on the magnetic field measurement and a measured ambient magnetic field. The present invention is also directed to a method and apparatus for measuring the intensity of the magnetic field by implementing operations to essentially eliminate error components that arise due to factors including offsets and gains affecting the intensity signal processing.
摘要翻译： 本发明涉及一种用于测量磁场并基于磁场测量和测量的环境磁场来确定是否存在异常的方法和装置。 本发明还涉及一种用于通过实施基本上消除由于包括影响强度信号处理的偏移和增益的因素引起的误差分量的操作来测量磁场强度的方法和装置。
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公开(公告)号：US5831427A
公开(公告)日：1998-11-03
申请号：US763778
申请日：1996-12-11
申请人： Donald R. Janke
发明人： Donald R. Janke
CPC分类号： G01R19/2509 , G01R19/0084 , G01R17/105
摘要： A volt meter changes the dividing resistance across the terminals of a voltage source between first and second different resistances and measures voltage across the dividing resistor at the different resistances to determine an accurate voltage source magnitude from the measured voltages and the ratio of second to first resistances despite an unknown source resistance.
摘要翻译： 电压表改变在第一和第二不同电阻之间的电压源的端子上的分压电阻，并且测量在不同电阻下的分压电阻器两端的电压，以从测量的电压和第二至第一电阻的比率确定精确的电压源幅度 尽管源阻力未知。
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公开(公告)号：US5440695A
公开(公告)日：1995-08-08
申请号：US214040
申请日：1994-03-16
CPC分类号： G06F13/4072
摘要： A combination input/output (I/O) module for a microprocessor based device is disclosed. The combination I/O module includes a combination point which is operable as either an input point adapted for coupling to an input device, an output point adapted for coupling to an output device, or both. The combination I/O module provides continuous sensing of the presence or absence of the output device. The combination I/O module includes a triac and provides for continuous sensing of the conductive state of the triac.
摘要翻译： 公开了一种用于基于微处理器的设备的组合输入/输出（I / O）模块。 组合I / O模块包括组合点，该组合点可操作为适于耦合到输入设备的输入点，适于耦合到输出设备的输出点或两者。 组合I / O模块提供输出设备的存在或不存在的连续感测。 组合I / O模块包括三端双向可控硅开关并提供连续感测三端双向可控硅开关元件的导通状态。
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公开(公告)号：US5450328A
公开(公告)日：1995-09-12
申请号：US215347
申请日：1994-03-21
申请人： Donald R. Janke , James A. Rodrian
发明人： Donald R. Janke , James A. Rodrian
摘要： A line isolation monitor (LIM) indicates the maximum hazard current of an ungrounded polyphase power distribution system. The LIM is microcontroller based and continuously monitors a fault impedance for the distribution system. The fault impedance is determined by the LIM by injecting a continuous sine wave measurement current into a ground terminal to generate a measurement voltage across the fault impedance. Using the measurement voltage and current, the LIM calculates the fault impedance and, using this impedance, calculates the hazard current based on the maximum line to ground voltage of the ungrounded system. The LIM has means for self-calibration and self-testing while on-line and during a power-up sequence to verify that components in the measurement circuitry are within specified tolerances.
摘要翻译： 线路隔离监视器（LIM）表示未接地多相配电系统的最大危险电流。 LIM是基于微控制器的，并且连续地监视配电系统的故障阻抗。 故障阻抗由LIM通过将连续的正弦波测量电流注入接地端子来产生故障阻抗上的测量电压来确定。 使用测量电压和电流，LIM计算故障阻抗，并使用该阻抗，根据未接地系统的最大线对地电压来计算危险电流。 LIM具有在线和在上电序列期间进行自校准和自检的手段，以验证测量电路中的组件是否在规定的公差范围内。
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公开(公告)号：US5152252A
公开(公告)日：1992-10-06
申请号：US824634
申请日：1992-01-23
CPC分类号： C02F1/686 , F22D11/006 , G05D21/02 , C02F2103/023 , Y10T137/0923
摘要： An apparatus controls treatment of water flowing through a boiler and includes a device that monitors the conductivity of the water. A controller opens a drain valve at periodic intervals, and closes the drain valve when the conductivity drops below a defined threshold. A mechanism measures the volume of water that flows into the boiler and a chemical is added to the water when a specified amount of water has flowed into the boiler. Alternatively the application of the chemical can occur at regular intervals of time. The chemical is applied for a user definable period of time. The application of the chemical is suspended when the cessation of water flow into the boiler is detected.
摘要翻译： 一种装置控制对流过锅炉的水的处理，并且包括监测水的电导率的装置。 控制器以周期性间隔打开排水阀，并且当电导率低于规定的阈值时关闭排水阀。 一个机构测量流入锅炉的水量，当一定量的水流入锅炉时，化学物质就会被添加到水中。 或者，化学品的施用可以以规则的时间间隔进行。 该化学品适用于用户可定义的一段时间。 当检测到水流入锅炉时停止使用化学品。
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