公开(公告)号：US20060031001A1

公开(公告)日：2006-02-09

申请号：US11195281

申请日：2005-08-02

申请人： Jimmie Snowbarger ,  Stephen Seberger ,  LeDoyle Pingel

发明人： Jimmie Snowbarger ,  Stephen Seberger ,  LeDoyle Pingel

IPC分类号： G06G7/70 ,  G06F19/00

CPC分类号： G05B5/00 ,  G05B5/01 ,  G05B7/00 ,  G05B7/02 ,  G05B9/00 ,  G05B2219/41304 ,  G05B2219/41311

摘要： Disclosed herein is a controller and method useful for transferring control of a process control device between first and second control modes. The controller includes first and second servo control modules that generate first and second drive signals based on feedback information from first and second sensors for control of the process control device in accordance with first and second control modes, respectively. The controller also includes a feedback control transfer module that transfers control of the operation of the process control device from the first control mode to the second control mode based on the feedback information from the first sensor. In certain embodiments, such control transfer involves a control routine that initially generates the second drive signal based on the first drive signal to effectuate a smooth, bumpless transfer between the control modes.

摘要翻译： 这里公开了一种用于在第一和第二控制模式之间传送过程控制装置的控制的控制器和方法。 控制器包括第一和第二伺服控制模块，其基于来自第一和第二传感器的反馈信息产生第一和第二驱动信号，用于分别根据第一和第二控制模式控制过程控制装置。 控制器还包括反馈控制传递模块，其基于来自第一传感器的反馈信息将控制过程控制装置的操作从第一控制模式转移到第二控制模式。 在某些实施例中，这种控制转移涉及基于第一驱动信号最初生成第二驱动信号以实现控制模式之间的平滑，无扰动传递的控制程序。

公开(公告)号：US20070183108A1

公开(公告)日：2007-08-09

申请号：US11626760

申请日：2007-01-24

申请人： Ronald Uhlenberg ,  Stephen Seberger ,  Riyaz Ali ,  Jimmie Snowbarger ,  Clyde Eisenbeis

发明人： Ronald Uhlenberg ,  Stephen Seberger ,  Riyaz Ali ,  Jimmie Snowbarger ,  Clyde Eisenbeis

IPC分类号： H02H3/20

CPC分类号： H02H9/008

摘要： A device intended to meet flameproof approval requirements is configured to have two compartments separated by an energy-limiting barrier. The first compartment of the device houses the wiring terminations that bear ignition-capable energy and, therefore, must be flameproof. The energy-limiting barrier is configured to limit the energy that can reach the second compartment to a level that is not ignition capable. This allows the second compartment to be safe without meeting the flameproof requirements, and allows user-interface elements such as switches and indicators to be designed in a more cost-effective manner.

摘要翻译： 旨在满足防火认证要求的设备被配置为具有由能量限制屏障隔开的两个隔间。 该设备的第一个隔间容纳具有点火能量的接线端子，因此必须是隔爆型的。 能量限制障碍物被配置为将能够到达第二隔室的能量限制在不能点火的水平。 这允许第二隔间安全，而不符合防火要求，并允许以更具成本效益的方式设计诸如开关和指示器之类的用户界面元件。

公开(公告)号：US20060219299A1

公开(公告)日：2006-10-05

申请号：US11426109

申请日：2006-06-23

申请人： Jimmie Snowbarger

发明人： Jimmie Snowbarger

IPC分类号： F16K31/12

CPC分类号： F16K37/0091 ,  Y10T137/0318 ,  Y10T137/0379 ,  Y10T137/0396 ,  Y10T137/2278 ,  Y10T137/7761 ,  Y10T137/7762 ,  Y10T137/7769

摘要： A multi-functional or versatile emergency shutdown valve controller may be used in various different emergency shutdown configurations to enable the testing of different types and configurations of emergency shutdown devices and the supporting equipment associated therewith. In one example, a digital valve controller for use with an emergency shutdown valve includes two pressure sensors and is adapted to be connected to a pneumatic valve actuator and to a solenoid valve device to assist in the on-line testing of the valve actuator as well as in the on-line testing of the solenoid valve. To perform testing of the solenoid valve, the valve controller may measure the pressure at different ports of the solenoid valve as the solenoid valve is actuated for a very short period of time. The valve controller may determine whether the solenoid device is fully functional or operational based on the derivative of the difference between the measured pressure signals, i.e., based on the rate of change of the difference between the measured pressure signals over time.

摘要翻译： 多功能或多用途的紧急关闭阀控制器可用于各种不同的紧急停机配置中，以便能够测试不同类型和配置的紧急停机装置以及与之相关的辅助设备。 在一个示例中，与紧急关闭阀一起使用的数字阀控制器包括两个压力传感器，并且适于连接到气动阀致动器和电磁阀装置，以辅助阀致动器的在线测试 如电磁阀的在线测试。 为了执行电磁阀的测试，阀门控制器可以测量电磁阀的不同端口处的压力，因为电磁阀在非常短的时间内被致动。 阀控制器可以基于所测量的压力信号之间的差的导数，即基于随时间测量的压力信号之间的差的变化率来确定螺线管装置是完全功能还是可操作。