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1. 发明公开

EP0864819A3 Fume hood exhaust terminal having an electrically driven linear actuator 失效
标题翻译：排气终端，用于通风橱用的电动线性驱动器
公开(公告)号：EP0864819A3
公开(公告)日：2000-07-12
申请号：EP98103027.3
申请日：1998-02-20
申请人： LANDIS & STAEFA, INC.
发明人： Jacob, Steven D.
IPC分类号： F24F11/04 , F24F13/14
CPC分类号： F24F13/1426 , F24F11/32 , F24F11/74 , F24F13/14 , F24F2013/1433 , F24F2013/1473
摘要： A fume hood exhaust terminal (10) for controlling gas flow in an exhaust duct (12) has an electrically driven linear actuator (40) for angularly positioning a damper (20) in the terminal. Drive circuitry (90) employed in the preferred embodiment prevents the possibility of shorting out the actuator motor (76) in the event of an input signal condition which would attempt to operate the motor in two directions simultaneously. The circuit also includes a power failure detection circuit which includes the capability of storing sufficient power to place the damper (20) in a preferred position until power is restored to the exhaust terminal (10).

2. 发明授权

EP0541864B1 A method and apparatus for determining the uncovered size of an opening adapted to be covered by multiple moveable doors 失效
标题翻译：方法，以及一种用于确定未覆盖的区域，可以由多个滑动门被覆盖的开口
公开(公告)号：EP0541864B1
公开(公告)日：1998-03-04
申请号：EP91310420.4
申请日：1991-11-12
申请人： LANDIS & STAEFA, INC.
发明人： Ahmed, Osman , Fritsche, Steven L. , Bradley, Steven Arthur
IPC分类号： B08B15/02
CPC分类号： B08B15/023

3. 发明公开

EP0819895A2 Automated branch flow calibration in a HVAC distribution system 失效
标题翻译：在einem Zweig einer Klimaanlage中的自动Durchflusskalibrierung
公开(公告)号：EP0819895A2
公开(公告)日：1998-01-21
申请号：EP97111169.5
申请日：1997-07-03
申请人： LANDIS & STAEFA, INC.
发明人： Osman, Ahmed
IPC分类号： F24F11/00
CPC分类号： F24F11/0001 , F24F11/74 , F24F2110/40 , F24F2140/40
摘要： A HVAC system automates the process of calibrating the individual branch flows of the system. For each branch of the system, a damper is closed and flow values at the output of the prime mover and at the input of the damper are measured. The damper is then opened 50% and again flow values at the output of the prime mover and at the input of the damper are measured. A flow coefficient, which correlates the flow difference measured at the output of the prime mover with the flow difference measured at the input of the damper, is then determined. The flow through each damper of each branch is calibrated in this manner, resulting in an overall balancing of the HVAC system. The automated process of branch flow calibration eliminates the tedious and time consuming process of both manual steps of measuring the branch flows and determining the flow coefficients as was performed in the prior art.
摘要翻译： HVAC系统自动化校准系统的各个分支流的过程。对于系统的每个分支，关闭阻尼器，并测量原动机输出端和阻尼器输入端的流量值。然后将阻尼器打开50％，并且在原动机的输出处和阻尼器的输入处再次测量流量值。然后确定将在原动机的输出处测量的流量差与在阻尼器的输入处测量的流量差相关联的流量系数。通过每个分支的每个阻尼器的流量以这种方式被校准，导致HVAC系统的总体平衡。分支流量校准的自动化过程消除了如现有技术中执行的测量分支流量和确定流量系数的两个手动步骤的繁琐且耗时的过程。

4. 发明授权

EP0721089B1 Control of prime mover in hvac distribution system 失效
标题翻译：控制分布式空调的原动力
公开(公告)号：EP0721089B1
公开(公告)日：2000-08-23
申请号：EP95120060.9
申请日：1995-12-19
申请人： LANDIS & STAEFA, INC.
发明人： Ahmed, Osman
IPC分类号： F24F11/04 , G05D7/06
CPC分类号： G05D7/0688 , F24F11/63 , F24F11/74 , F24F11/77 , F24F2110/30 , F24F2110/40
摘要： A controller controls a prime mover (source component) in a heating, ventilation and air-conditioning (HVAC) distribution system. The controller determines a static pressure setpoint for the source component by first determining the pressure loss of each branch throughout the system. The controller then determines the pressure loss contributed by local components located within each branch of the system. The maximum of the branch pressure losses and the maximum of the component pressure losses are summed to provide the static pressure setpoint for the source component. The method provides improved control of the prime mover independent of the configuration of the system, which allows for easy and cost-effective implementation of the control method.

5. 发明公开

EP0819895A3 Automated branch flow calibration in a HVAC distribution system 失效
标题翻译：在空调机的一个分支自动流量校准
公开(公告)号：EP0819895A3
公开(公告)日：1999-08-11
申请号：EP97111169.5
申请日：1997-07-03
申请人： LANDIS & STAEFA, INC.
发明人： Osman, Ahmed
IPC分类号： F24F11/00
CPC分类号： F24F11/0001 , F24F11/74 , F24F2110/40 , F24F2140/40
摘要： A HVAC system automates the process of calibrating the individual branch flows of the system. For each branch of the system, a damper is closed and flow values at the output of the prime mover and at the input of the damper are measured. The damper is then opened 50% and again flow values at the output of the prime mover and at the input of the damper are measured. A flow coefficient, which correlates the flow difference measured at the output of the prime mover with the flow difference measured at the input of the damper, is then determined. The flow through each damper of each branch is calibrated in this manner, resulting in an overall balancing of the HVAC system. The automated process of branch flow calibration eliminates the tedious and time consuming process of both manual steps of measuring the branch flows and determining the flow coefficients as was performed in the prior art.

6. 发明授权

EP0558192B1 Analog output electro-pneumatic transducer 失效
标题翻译：电动气动转换器具有模拟输出
公开(公告)号：EP0558192B1
公开(公告)日：1998-07-08
申请号：EP93300775.9
申请日：1993-02-03
申请人： LANDIS & STAEFA, INC.
发明人： Hanley, Mark G. , Caliendo, Guy P.
IPC分类号： G05D16/20
CPC分类号： G05D16/2013 , Y10T137/2409 , Y10T137/2544

7. 发明公开

EP0884116A3 Laboratory fume hood controller utilizing object detection 失效
标题翻译：用于实验室通风橱对象检测控制装置
公开(公告)号：EP0884116A3
公开(公告)日：2000-04-26
申请号：EP98103026.5
申请日：1998-02-20
申请人： LANDIS & STAEFA, INC.
发明人： Jacob, Steven D.
IPC分类号： B08B15/02
CPC分类号： B08B15/023 , F24F2110/30 , G05D7/0623
摘要： A fume hood controller (20) includes detection apparatus for detecting the presence of objects within the fume hood (60) and reduces the flow through the fume hood (60) if there are no objects within the hood, thereby conserving energy costs associated with conditioning supply air to the room where the fume hood is located. The controller (20) also adjusts flow as a function of the presence and also the location of objects that are detected within the fume hood (60). Since there is a smaller likelihood of fume spillage when the objects are located more deeply within the fume hood, the flow can be reduced in such a situation compared to that which would be required if the objects are located closer to the sash.

8. 发明授权

EP0721088B1 Global control of hvac distribution system 失效
标题翻译：分布式空调的全局控制
公开(公告)号：EP0721088B1
公开(公告)日：1999-09-29
申请号：EP95120058.3
申请日：1995-12-19
申请人： LANDIS & STAEFA, INC.
发明人： Ahmed, Osman
IPC分类号： F24F11/04 , G05D7/06
CPC分类号： G05D7/0688 , F24F11/54 , F24F11/74 , F24F11/77 , F24F2110/30 , F24F2110/40
摘要： A global control system is implemented in a heating, ventilation and air-conditioning (HVAC) distribution system. The system allows local controllers and a source controller to exchange data between one another so that optimization of control for a local component is not sacrificed for optimization of control for a source component, and vice versa. The controllers have their control process sudivided into an identification process and a control process. The identification process periodically identifies characteristics related to the component to be controlled. The control process continuously generates a control signal to be applied to the component to control the component. The control process is further subdivided into a feedforward process and a feedback process. The feedforward process utilizes the identified characteristics to generate a control signal based on calculated system variables, while the feedback generates a control signal based on measured system variables. The two control signals are then combined to control the component. The combination of the control signals produces a more accurate control signal since the effects of noise related to the measured system variables are mitigated by the combination of control signals.

9. 发明公开

EP0892327A1 Method and apparatus for monitoring and controlling real-time information in a building automation system 失效
标题翻译：方法及监测装置和控制从楼宇自动化系统的实时信息
公开(公告)号：EP0892327A1
公开(公告)日：1999-01-20
申请号：EP98113203.8
申请日：1998-07-15
申请人： LANDIS & STAEFA, INC.
发明人： Han, James K. , Ramirez, Pete
IPC分类号： G05B23/02
CPC分类号： G05B23/0216
摘要： The building automation control system of the present invention includes a supervisory control station for monitoring and controlling process information (control points) from at least one environmental control device. The supervisory control station is provided with a memory for storing data, including a dynamic link library (DLL) containing: first data for displaying a plurality of independently selectable graphic objects, and link data specifying an association between a selected graphic object and the control point. The supervisory control station dynamically displays the received real-time process state information for the associated control point using stored state table data, link data, and run time values from the environmental control device.
摘要翻译：本发明的建筑物自动化控制系统包括用于从至少一个环境控制设备监测和控制过程的信息（控制点）一个监控站。所选择的图形对象和控制点之间的第一数据，用于显示unabhängig可选择的图形对象的多个，并且关联的链接数据指定：监视控制站设置有一个存储器，用于存储数据，包括一个动态链接库（DLL）含，监视控制站动态地显示用于使用从对环境的控制装置存储的状态表中的数据，链路数据，和运行时间值相关联的控制点所接收到的实时过程的状态信息。

10. 发明公开

EP0824043A2 Speed of laboratory fume hood sash opening monitor and indicator 失效
标题翻译： Vorrichtung zurÜberwachungund Indikation derÖffnungsgeschwindigkeitderTüreines Laborabzugschrankes
公开(公告)号：EP0824043A2
公开(公告)日：1998-02-18
申请号：EP97111168.7
申请日：1997-07-03
申请人： LANDIS & STAEFA, INC.
发明人： Jacob, Steven D.
IPC分类号： B08B15/02 , B01L1/00
CPC分类号： G01P1/10 , B08B15/023 , G01P13/00
摘要： Apparatus for monitoring the speed of movement of at least one sash door (62) of a laboratory fume hood (60) is disclosed. The speed of movement of a sash door (62) is detected and an alarm signal is generated if the speed of movement exceeds a predetermined value while increasing the size of the uncovered opening of the fume hood (60).
摘要翻译：公开了一种用于监测实验室通风橱（60）的至少一个窗扇门（62）的运动速度的装置。检测出扇窗门（62）的移动速度，并且如果移动速度超过预定值同时增加通风橱（60）的未覆盖开口的尺寸，则产生报警信号。

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