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11. 发明授权

US08478444B2 Apparatus and method for controlling autotroph cultivation 有权
标题翻译：用于控制自养培养的装置和方法
公开(公告)号：US08478444B2
公开(公告)日：2013-07-02
申请号：US12985061
申请日：2011-01-05
申请人： Adrian M. Fuxman , Sebastien Tixier , Gregory E. Stewart , Frank M. Haran , Johan U. Backstrom , Kelsey Gerbrandt
发明人： Adrian M. Fuxman , Sebastien Tixier , Gregory E. Stewart , Frank M. Haran , Johan U. Backstrom , Kelsey Gerbrandt
IPC分类号： G01N15/06 , G01N33/00 , G01N33/48
CPC分类号： C12M41/48 , C12M21/02 , C12M41/12 , C12M41/26 , C12M41/34 , C12M41/42 , G05B13/048 , G05B2219/2605
摘要： A method includes receiving at least one measurement of a dissolved carbon dioxide concentration of a mixture of fluid containing an autotrophic organism. The method also includes determining an adjustment to one or more manipulated variables using the at least one measurement. The method further includes generating one or more signals to modify the one or more manipulated variables based on the determined adjustment. The one or more manipulated variables could include a carbon dioxide flow rate, an air flow rate, a water temperature, and an agitation level for the mixture. At least one model relates the dissolved carbon dioxide concentration to one or more manipulated variables, and the adjustment could be determined by using the at least one model to drive the dissolved carbon dioxide concentration to at least one target that optimize a goal function. The goal function could be to optimize biomass growth rate, nutrient removal and/or lipid production.
摘要翻译：一种方法包括接收含有自养生物的流体混合物的溶解二氧化碳浓度的至少一个测量值。该方法还包括使用至少一个测量来确定对一个或多个操纵变量的调整。该方法还包括基于所确定的调整产生一个或多个信号以修改一个或多个操纵变量。一个或多个操纵变量可以包括二氧化碳流速，空气流速，水温和混合物的搅拌水平。至少一个模型将溶解的二氧化碳浓度与一个或多个操作变量相关联，并且可以通过使用至少一个模型来确定调节，以将溶解的二氧化碳浓度驱使至优化目标函数的至少一个目标。目标函数可以是优化生物量生长速率，营养物去除和/或脂质生产。

12. 发明授权

US07608169B2 Apparatus and method for break recovery in a paper machine or other system 有权
标题翻译：造纸机或其他系统中破碎恢复的装置和方法
公开(公告)号：US07608169B2
公开(公告)日：2009-10-27
申请号：US11501576
申请日：2006-08-09
申请人： Johan U. Backstrom , Gregory E. Stewart
发明人： Johan U. Backstrom , Gregory E. Stewart
IPC分类号： D21F11/00
CPC分类号： D21F7/06 , D21G9/0036
摘要： A method includes determining one or more setpoint changes for one or more actuators in a process control system. Determining the one or more setpoint changes includes making larger or more frequent setpoint changes when operating in a first mode and making smaller or less frequent setpoint changes when operating in a second mode. The method also includes outputting the one or more setpoint changes to the one or more actuators. The method could further include entering the first mode after a paper sheet has broken and been rethreaded through a paper machine. The method could also include entering the second mode (i) after a specified amount of time has elapsed since entering the first mode or (ii) after the first mode has been entered and a caliper profile of the paper sheet is within a specified threshold of a desired caliper profile.
摘要翻译：一种方法包括确定过程控制系统中的一个或多个致动器的一个或多个设定点变化。确定一个或多个设定点变化包括当在第一模式中操作时进行更大或更频繁的设定点改变，并且当在第二模式下操作时使得设定点变化更小或更少频率。该方法还包括将一个或多个设定点改变输出到一个或多个致动器。该方法可以进一步包括在纸张破碎并通过造纸机重新布线之后进入第一模式。该方法还可以包括在从进入第一模式经过指定时间量之后进入第二模式（i），或者（ii）在第一模式被输入之后并且纸张的卡尺轮廓在规定的阈值内所需的卡尺轮廓。

13. 发明申请

US20080039968A1 Apparatus and method for caliper profile break recovery in a paper machine 有权
标题翻译：纸机中卡钳轮廓断裂恢复的装置和方法
公开(公告)号：US20080039968A1
公开(公告)日：2008-02-14
申请号：US11501576
申请日：2006-08-09
申请人： Johan U. Backstrom , Gregory E. Stewart
发明人： Johan U. Backstrom , Gregory E. Stewart
IPC分类号： G06F7/66
CPC分类号： D21F7/06 , D21G9/0036
摘要： A method includes determining one or more setpoint changes for one or more actuators in a process control system. Determining the one or more setpoint changes includes making larger or more frequent setpoint changes when operating in a first mode and making smaller or less frequent setpoint changes when operating in a second mode. The method also includes outputting the one or more setpoint changes to the one or more actuators. The method could further include entering the first mode after a paper sheet has broken and been rethreaded through a paper machine. The method could also include entering the second mode (i) after a specified amount of time has elapsed since entering the first mode or (ii) after the first mode has been entered and a caliper profile of the paper sheet is within a specified threshold of a desired caliper profile.
摘要翻译：一种方法包括确定过程控制系统中的一个或多个致动器的一个或多个设定点变化。确定一个或多个设定点变化包括当在第一模式中操作时进行更大或更频繁的设定点改变，并且当在第二模式下操作时使得设定点变化更小或更少频率。该方法还包括将一个或多个设定点改变输出到一个或多个致动器。该方法可以进一步包括在纸张破碎并通过造纸机重新布线之后进入第一模式。该方法还可以包括在从进入第一模式经过指定时间量之后进入第二模式（i），或者（ii）在第一模式被输入之后并且纸张的卡尺轮廓在规定的阈值内所需的卡尺轮廓。

14. 发明申请

US20120173023A1 APPARATUS AND METHOD FOR CONTROLLING AUTOTROPH CULTIVATION 有权
标题翻译：用于控制自动生成的装置和方法
公开(公告)号：US20120173023A1
公开(公告)日：2012-07-05
申请号：US12985061
申请日：2011-01-05
申请人： Adrian M. Fuxman , Sebastien Tixier , Gregory E. Stewart , Frank M. Haran , Johan U. Backstrom , Kelsey Gerbrandt
发明人： Adrian M. Fuxman , Sebastien Tixier , Gregory E. Stewart , Frank M. Haran , Johan U. Backstrom , Kelsey Gerbrandt
IPC分类号： G05B21/00
CPC分类号： C12M41/48 , C12M21/02 , C12M41/12 , C12M41/26 , C12M41/34 , C12M41/42 , G05B13/048 , G05B2219/2605
摘要： A method includes receiving at least one measurement of a dissolved carbon dioxide concentration of a mixture of fluid containing an autotrophic organism. The method also includes determining an adjustment to one or more manipulated variables using the at least one measurement. The method further includes generating one or more signals to modify the one or more manipulated variables based on the determined adjustment. The one or more manipulated variables could include a carbon dioxide flow rate, an air flow rate, a water temperature, and an agitation level for the mixture. At least one model relates the dissolved carbon dioxide concentration to one or more manipulated variables, and the adjustment could be determined by using the at least one model to drive the dissolved carbon dioxide concentration to at least one target that optimize a goal function. The goal function could be to optimize biomass growth rate, nutrient removal and/or lipid production.
摘要翻译：一种方法包括接收含有自养生物的流体混合物的溶解二氧化碳浓度的至少一个测量值。该方法还包括使用至少一个测量来确定对一个或多个操纵变量的调整。该方法还包括基于所确定的调整产生一个或多个信号以修改一个或多个操纵变量。一个或多个操纵变量可以包括二氧化碳流速，空气流速，水温和混合物的搅拌水平。至少一个模型将溶解的二氧化碳浓度与一个或多个操作变量相关联，并且可以通过使用至少一个模型来确定调整，以将溶解的二氧化碳浓度驱使到优化目标函数的至少一个目标。目标函数可以是优化生物量生长速率，营养物去除和/或脂质生产。

15. 发明申请

US20110295390A1 APPARATUS AND METHOD FOR MODELING AND CONTROL OF CROSS-DIRECTION FIBER ORIENTATION PROCESSES 有权
标题翻译：交叉光纤定向方法的建模与控制方法
公开(公告)号：US20110295390A1
公开(公告)日：2011-12-01
申请号：US13028834
申请日：2011-02-16
申请人： Danlei Chu , Gregory E. Stewart , Cristian Gheorghe , Johan U. Backstrom
发明人： Danlei Chu , Gregory E. Stewart , Cristian Gheorghe , Johan U. Backstrom
IPC分类号： G05B13/02 , G06G7/48
CPC分类号： G05B17/02 , D21F7/06 , D21G9/0027
摘要： A method includes generating a model associated with cross-directional fiber orientation of a web, which includes identifying spatial frequency characteristics of a fiber orientation (FO) process. The method also includes providing the model for control of the FO process. Generating the model could include performing a spatial impulse test of the FO process, and long wavelength responses of the FO process can be identified by performing a spatial long wavelength test of the FO process or by retrieving information from a historical database. Actuator edge padding can be applied to the model in order to generate a controller model. A controller can be used to control the process based on the controller model. At least one parameter of the controller model can be dynamically adjusted during operation of the controller. The controller can change average fiber orientation angle profiles and twist profiles by only adjusting slice lip actuators in a headbox.
摘要翻译：一种方法包括产生与幅材的横向纤维取向相关联的模型，其包括识别纤维取向（FO）过程的空间频率特性。该方法还包括提供用于控制FO过程的模型。生成模型可以包括执行FO过程的空间冲击测试，并且可以通过执行FO过程的空间长波长测试或通过从历史数据库检索信息来识别FO过程的长波长响应。执行器边缘填充可应用于模型，以生成控制器模型。控制器可用于根据控制器模型控制过程。控制器模型的至少一个参数可以在控制器运行期间进行动态调整。控制器可以通过仅调节流浆箱中的片唇致动器来改变平均纤维取向角轮廓和扭曲轮廓。

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