公开(公告)号：US5960375A

公开(公告)日：1999-09-28

申请号：US866290

申请日：1997-05-30

Applicant: Jogesh Warrior ,  Scott E. Brigham ,  Gary A. Lenz

Inventor： Jogesh Warrior ,  Scott E. Brigham ,  Gary A. Lenz

IPC: G01D3/028 ,  G01D3/02 ,  G01D3/036 ,  G01D18/00 ,  G01D5/00

CPC classification number: G01D3/0365 ,  G01D18/00 ,  G01D3/022 ,  Y10S706/90 ,  Y10S706/906

Abstract: A circuit for compensating variables in a measurement transmitter. Within the transmitter, a sensor senses a primary process variable such as differential pressure and a converter digitizes the sensed process variable. The sensor senses pressures within a span of pressures values. A memory inside the transmitter stores at least two membership functions, each membership function having a non-zero value over a predetermined region of the process variable span and a substantially zero value over the remainder of the span. The memory also stores a set of compensation formulas, each formula corresponding to a membership function. A selection circuit in the transmitter selects those membership functions which have a non-zero value at the digitized process variable and a correction circuit provides at least one correction value, each correction value calculated from a compensation formula corresponding to a selected membership function. A weighting circuit multiplies each correction value by its corresponding selected membership function, and combines the multiplicands to provide a compensated process variable. The compensated process variable is coupled to a control circuit connecting the transmitter to a control system.

Abstract translation: 用于补偿测量变送器中变量的电路。 在变送器内，传感器感测主要过程变量，例如差压，转换器对感测到的过程变量进行数字化。 传感器感测压力范围内的压力值。 发射机内的存储器存储至少两个隶属函数，每个隶属函数在过程可变跨度的预定区域上具有非零值，并且在跨度的剩余部分上具有基本为零的值。 存储器还存储一组补偿公式，每个公式对应于隶属函数。 发射机中的选择电路选择在数字化处理变量处具有非零值的那些隶属函数，并且校正电路提供至少一个校正值，每个校正值根据与选定的隶属函数对应的补偿公式计算。 加权电路将每个校正值乘以其对应的选择的隶属函数，并且组合被乘数以提供经补偿的过程变量。 补偿过程变量耦合到将发射器连接到控制系统的控制电路。

公开(公告)号：US5642301A

公开(公告)日：1997-06-24

申请号：US186288

申请日：1994-01-25

Applicant: Jogesh Warrior ,  Scott E. Brigham ,  Gary A. Lenz

Inventor： Jogesh Warrior ,  Scott E. Brigham ,  Gary A. Lenz

IPC: G01D3/028 ,  G01D3/02 ,  G01D3/036 ,  G01D18/00 ,  G01F1/08

CPC classification number: G01D3/0365 ,  G01D18/00 ,  G01D3/022 ,  Y10S706/90 ,  Y10S706/906

Abstract: A circuit for compensating variables in a measurement transmitter. Within the transmitter, a sensor senses a primary process variable such as differential pressure and a converter digitizes the sensed process variable. The sensor senses pressures within a span of pressures values. A memory inside the transmitter stores at least two membership functions, each membership function having a non-zero value over a predetermined region of the process variable span and a substantially zero value over the remainder of the span. The memory also stores a set of compensation formulas, each formula corresponding to a membership function. A selection circuit in the transmitter selects those membership functions which have a non-zero value at the digitized process variable and a correction circuit provides at least one correction value, each correction value calculated from a compensation formula corresponding to a selected membership function. A weighting circuit multiplies each correction value by its corresponding selected membership function, and combines the multiplicands to provide a compensated process variable. The compensated process variable is coupled to a control circuit connecting the transmitter to a control system.

Abstract translation: 用于补偿测量变送器中变量的电路。 在变送器内，传感器感测主要过程变量，例如差压，转换器对感测到的过程变量进行数字化。 传感器感测压力范围内的压力值。 发射机内的存储器存储至少两个隶属函数，每个隶属函数在过程可变跨度的预定区域上具有非零值，并且在跨度的剩余部分上具有基本为零的值。 存储器还存储一组补偿公式，每个公式对应于隶属函数。 发射机中的选择电路选择在数字化处理变量处具有非零值的那些隶属函数，并且校正电路提供至少一个校正值，每个校正值根据与选定的隶属函数对应的补偿公式计算。 加权电路将每个校正值乘以其对应的选择的隶属函数，并且组合被乘数以提供经补偿的过程变量。 补偿过程变量耦合到将发射器连接到控制系统的控制电路。

公开(公告)号：US5549137A

公开(公告)日：1996-08-27

申请号：US112694

申请日：1993-08-25

Applicant: Gary A. Lenz ,  Gregory C. Brown ,  Jogesh Warrior

Inventor： Gary A. Lenz ,  Gregory C. Brown ,  Jogesh Warrior

IPC: G05D3/12 ,  G05D7/00 ,  G05D7/06 ,  G05D16/20 ,  F16K31/126

CPC classification number: G05D7/005 ,  F16K31/1262 ,  F16K37/0083 ,  Y10T137/2452 ,  Y10T137/7759 ,  Y10T137/7761

Abstract: In this invention, a valve positioner receives a setpoint from a master and provides a control pressure to a valve actuator for controlling a valve. A sensing circuit in the positioner senses the position of the valve and the control pressure, and a control circuit in the positioner uses both the sensed pressure and position to provide a command output to a pneumatic section which produces the control pressure. In another embodiment of the invention, a positioner receives a setpoint from a master and provides a control pressure to a valve actuator for controlling a valve. A sensing circuit in the positioner senses the valve position and pneumatics in the positioner provide the control pressure as a function of the sensed position and an output from a control circuit within the positioner. The positioner includes a diagnostic circuit which stores a valve attribute and provides a diagnostic output as a function of the stored valve characteristic and a selected one of the sensed variables. In another embodiment of the invention, a positioner includes a correction circuit for storing a valve attribute affected by one of a set of physical parameters and for receiving a selected one of the set of sensed physical parameters. The correction means compensates a command output from a control circuit as a function of the sensed physical parameter and the stored valve characteristic. In another embodiment, the positioner includes a benchset control circuit which ramps the control pressure between an initial control pressure and a final control pressure and back to the initial control pressure, while sampling specific control pressures and their corresponding positions, in order to provide an output indicating the proper spring preload force on an actuator spring.

公开(公告)号：US5573032A

公开(公告)日：1996-11-12

申请号：US478506

申请日：1995-06-07

Applicant: Gary A. Lenz ,  Gregory C. Brown ,  Jogesh Warrior

Inventor： Gary A. Lenz ,  Gregory C. Brown ,  Jogesh Warrior

IPC: G05D3/12 ,  G05D7/00 ,  G05D7/06 ,  G05D16/20 ,  F16K31/126

CPC classification number: G05D7/005 ,  F16K31/1262 ,  F16K37/0083 ,  Y10T137/2452 ,  Y10T137/7759 ,  Y10T137/7761

Abstract: In this invention, a valve positioner receives a setpoint from a master and provides a control pressure to a valve actuator for controlling a valve. A sensing circuit in the positioner senses the position of the valve and the control pressure, and a control circuit in the positioner uses both the sensed pressure and position to provide a command output to a pneumatic section which produces the control pressure. In another embodiment of the invention, a positioner receives a setpoint from a master and provides a control pressure to a valve actuator for controlling a valve. A sensing circuit in the positioner senses the valve position and pneumatics in the positioner provide the control pressure as a function of the sensed position and an output from a control circuit within the positioner. The positioner includes a diagnostic circuit which stores a valve attribute and provides a diagnostic output as a function of the stored valve characteristic and a selected one of the sensed variables. In another embodiment of the invention, a positioner includes a correction circuit for storing a valve attribute affected by one of a set of physical parameters and for receiving a selected one of the set of sensed physical parameters. The correction means compensates a command output from a control circuit as a function of the sensed physical parameter and the stored valve characteristic. In another embodiment, the positioner includes a benchset control circuit which ramps the control pressure between an initial control pressure and a final control pressure and back to the initial control pressure, while sampling specific control pressures and their corresponding positions, in order to provide an output indicating the proper spring preload force on an actuator spring.

Abstract translation: 在本发明中，阀定位器从主机接收设定值，并向控制阀的阀致动器提供控制压力。 定位器中的检测电路检测阀的位置和控制压力，并且定位器中的控制电路使用感测到的压力和位置来向产生控制压力的气动部提供指令输出。 在本发明的另一个实施例中，定位器从主机接收设定值，并向控制阀的阀致动器提供控制压力。 定位器中的感测电路感测阀位置，并且定位器中的气动作为感测位置的函数提供控制压力，以及来自定位器内的控制电路的输出。 定位器包括诊断电路，其存储阀属性并提供作为存储的阀特性的函数的诊断输出和所感测的变量中的所选择的一个。 在本发明的另一个实施例中，定位器包括一个校正电路，用于存储受一组物理参数之一影响的阀门属性，并且用于接收该组感测物理参数中选定的一个。 校正装置补偿从控制电路输出的命令作为检测到的物理参数和存储的阀特性的函数。 在另一个实施例中，定位器包括一个台架控制电路，其在初始控制压力和最终控制压力之间斜升控制压力并返回初始控制压力，同时对特定控制压力及其对应位置进行采样，以便提供输出 指示执行器弹簧上的正确的弹簧预紧力。

公开(公告)号：US5558115A

公开(公告)日：1996-09-24

申请号：US481085

申请日：1995-06-07

Applicant: Gary A. Lenz ,  Gregory C. Brown ,  Jogesh Warrior

Inventor： Gary A. Lenz ,  Gregory C. Brown ,  Jogesh Warrior

IPC: G05D3/12 ,  G05D7/00 ,  G05D7/06 ,  G05D16/20 ,  F16K37/00

CPC classification number: G05D7/005 ,  F16K31/1262 ,  F16K37/0083 ,  Y10T137/2452 ,  Y10T137/7759 ,  Y10T137/7761

Abstract: In this invention, a valve positioner receives a setpoint from a master and provides a control pressure to a valve actuator for controlling a valve. A sensing circuit in the positioner senses the position of the valve and the control pressure, and a control circuit in the positioner uses both the sensed pressure and position to provide a command output to a pneumatic section which produces the control pressure. In another embodiment of the invention, a positioner receives a setpoint from a master and provides a control pressure to a valve actuator for controlling a valve. A sensing circuit in the positioner senses the valve position and pneumatics in the positioner provide the control pressure as a function of the sensed position and an output from a control circuit within the positioner. The positioner includes a diagnostic circuit which stores a valve attribute and provides a diagnostic output as a function of the stored valve characteristic and a selected one of the sensed variables. In another embodiment of the invention, a positioner includes a correction circuit for storing a valve attribute affected by one of a set of physical parameters and for receiving a selected one of the set of sensed physical parameters. The correction means compensates a command output from a control circuit as a function of the sensed physical parameter and the stored valve characteristic. In another embodiment, the positioner includes a benchset control circuit which ramps the control pressure between an initial control pressure and a final control pressure and back to the initial control pressure, while sampling specific control pressures and their corresponding positions, in order to provide an output indicating the proper spring preload force on an actuator spring.

公开(公告)号：US20050216227A1

公开(公告)日：2005-09-29

申请号：US10807070

申请日：2004-03-23

Applicant: Jogesh Warrior ,  John Eidson ,  Jerry Liu

Inventor： Jogesh Warrior ,  John Eidson ,  Jerry Liu

IPC: H04L12/28 ,  H04L12/56 ,  G01F17/00

CPC classification number: H04L45/00 ,  H04W40/248 ,  H04W84/18

Abstract: Embodiments of the present invention are directed to sensor nets from which data is extracted using mobile devices. Sensor devices within the sensor nets record access attempts by mobile devices. Using the recorded access attempts, the probabilities of future access to respective sensor devices are calculated. Collection points are selected using the calculated probabilities. Also, the probabilities of future access are distributed through the sensor nets. Routing of measurement data within the sensor nets may occur using the calculated probabilities.

Abstract translation: 本发明的实施例涉及使用移动设备提取数据的传感器网。 传感器网络中的传感器设备记录移动设备的访问尝试。 使用记录的访问尝试，计算未来访问相应传感器设备的概率。 使用计算的概率选择收集点。 此外，未来访问的概率通过传感器网络进行分发。 传感器网内测量数据的路由可以使用计算的概率进行。

公开(公告)号：US5764891A

公开(公告)日：1998-06-09

申请号：US602712

申请日：1996-02-15

Applicant: Jogesh Warrior

Inventor： Jogesh Warrior

IPC: G05B19/418 ,  H04L12/40 ,  G06F17/00

CPC classification number: G05B19/4185 ,  H04L12/40 ,  G05B2219/31126 ,  H04L2012/40221 ,  Y02P90/18

Abstract: A field device such as a transmitter in a process control system includes conversion circuitry coupled between Fieldbus interface circuitry and transmitter interface circuitry. The transmitter includes a transducer for sensing a process variable and providing a transducer output. Measurement circuitry couples to the transducer output, processes the transducer output and provides a measurement output. The transmitter interface circuitry couples to the measurement circuitry and provides an interface output representative of the measurement output. Further, the transmitter interface circuitry receives a transmitter command and responds in accordance with the transmitter command. The Fieldbus interface circuitry is adapted to couple to a process control loop which operates in accordance with the Fieldbus standard.

Abstract translation: 诸如过程控制系统中的发射机的现场设备包括耦合在现场总线接口电路和发射机接口电路之间的转换电路。 发射器包括用于感测过程变量并提供换能器输出的换能器。 测量电路耦合到传感器输出，处理传感器输出并提供测量输出。 发射机接口电路耦合到测量电路，并提供表示测量输出的接口输出。 此外，发射机接口电路接收发射机命令并根据发射机命令进行响应。 现场总线接口电路适于耦合到根据现场总线标准进行操作的过程控制回路。

公开(公告)号：US5122794A

公开(公告)日：1992-06-16

申请号：US604168

申请日：1990-10-29

Applicant: Jogesh Warrior

Inventor： Jogesh Warrior

IPC: G08C19/02 ,  H04L12/403

CPC classification number: H04L12/403 ,  G08C19/02 ,  H04L12/417

Abstract: A pair of master units share a common communication link to communicate with one or more slave units. Each slave unit transmits a message only in response to a message from one of the master units. When an initial transmission request is received by a master unit, it monitors the communication link and only initiates transmission of a message when the link has been quiet for a link quiet time period. After completing a transmission of a message, the master unit waits a link grant time period before transmitting again to permit the other master unit an opportunity to transmit a message if it desires. Synchronization of the two master units, therefore, is achieved quickly and with minimum overhead.

公开(公告)号：US20050288904A1

公开(公告)日：2005-12-29

申请号：US10876048

申请日：2004-06-24

Applicant: Jogesh Warrior ,  John Eidson

Inventor： Jogesh Warrior ,  John Eidson

IPC: H04L12/28 ,  H04L29/06 ,  G06F11/00 ,  G06F15/00

CPC classification number: H04L29/06

Abstract: Representative embodiments are directed to distributed sensor systems from which measurement data is extracted using mobile devices. Representative embodiments record access attempts by the mobile devices and calculate the probabilities of future access by a mobile device to sensor devices using the recorded information. Collection points are selected in response to the probabilities of future access. Additionally, memory management and data prioritization may occur that is at least partially dependent upon the probabilities of future access.

Abstract translation: 代表性的实施例涉及使用移动设备提取测量数据的分布式传感器系统。 代表性实施例记录移动设备的访问尝试，并且使用记录的信息来计算移动设备将来访问传感器设备的概率。 收集点是针对未来访问的概率进行选择的。 此外，可能发生存储器管理和数据优先级，其至少部分地取决于未来访问的概率。

公开(公告)号：US06539267B1

公开(公告)日：2003-03-25

申请号：US09565604

申请日：2000-05-04

Applicant: Evren Eryurek ,  Jogesh Warrior

Inventor： Evren Eryurek ,  Jogesh Warrior

IPC: G05B1302

CPC classification number: G05B13/0275 ,  G05B21/02 ,  G05B23/0221 ,  G05B23/0278

Abstract: A process device couples to a process control loop. The process device receives process signals. A memory in the process device contains a nominal parameter value and a rule. Computing circuitry calculates a statistical parameter of the process signal and operates on the statistical parameter and the stored nominal value based upon the stored rule and responsively provides an event output based upon the operation. Output circuitry provides an output in response to the event output. The statistical parameter can be used in statistical process control systems.

Abstract translation: 过程设备耦合到过程控制回路。 过程设备接收过程信号。 过程设备中的存储器包含标称参数值和规则。 计算电路计算过程信号的统计参数，并且基于存储的规则对统计参数和存储的标称值进行操作，并且基于操作响应地提供事件输出。 输出电路提供响应于事件输出的输出。 统计参数可用于统计过程控制系统。