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1. 发明授权

US07983211B2 Control system with wireless messages containing message sequence information 有权
标题翻译：具有包含消息序列信息的无线消息的控制系统
公开(公告)号：US07983211B2
公开(公告)日：2011-07-19
申请号：US11652401
申请日：2007-01-11
申请人： Eric R. Lovegren , Kelly M. Orth , Eric W. Sybesma
发明人： Eric R. Lovegren , Kelly M. Orth , Eric W. Sybesma
IPC分类号： G06F13/00
CPC分类号： H04W40/10 , G05B2219/31162 , H04L41/00 , H04L41/12 , H04L41/22 , H04L43/045 , H04L45/22 , H04L45/24 , H04L45/28 , H04L47/10 , H04L47/14 , H04L47/28 , H04L47/34 , H04W4/18 , H04W8/26 , H04W16/18 , H04W16/22 , H04W24/08 , H04W40/00 , H04W40/08 , H04W40/22 , H04W40/24 , H04W52/02 , H04W52/0225 , H04W56/00 , H04W76/20 , H04W80/00 , H04W84/18 , H04W88/16 , H04W92/00 , Y02D70/144 , Y02D70/164 , Y02D70/22 , Y02D70/324 , Y02D70/326 , Y02D70/39
摘要： A control system uses a wireless mesh network to provide communication between a host computer and field devices. The host and the field devices communicate with one another using wireless messages containing requests and responses that are routed through the wireless mesh network. The wireless messages include sequence information that allow the receiving device to identify and reject messages that are received out of order.
摘要翻译：控制系统使用无线网状网络来提供主机与现场设备之间的通信。主机和现场设备使用包含通过无线网状网络路由的请求和响应的无线消息彼此通信。无线消息包括允许接收设备识别和拒绝不按顺序接收的消息的序列信息。

2. 发明授权

US07903596B2 Control of low power wireless networks for power conservation 有权
标题翻译：控制低功耗无线网络进行节能
公开(公告)号：US07903596B2
公开(公告)日：2011-03-08
申请号：US11652399
申请日：2007-01-11
申请人： Patrick M. Dobrowski , Eric R. Lovegren , Kelly M. Orth , Kyle L. Stotz
发明人： Patrick M. Dobrowski , Eric R. Lovegren , Kelly M. Orth , Kyle L. Stotz
IPC分类号： G08C17/00
CPC分类号： H04W40/10 , G05B2219/31162 , H04L41/00 , H04L41/12 , H04L41/22 , H04L43/045 , H04L45/22 , H04L45/24 , H04L45/28 , H04L47/10 , H04L47/14 , H04L47/28 , H04L47/34 , H04W4/18 , H04W8/26 , H04W16/18 , H04W16/22 , H04W24/08 , H04W40/00 , H04W40/08 , H04W40/22 , H04W40/24 , H04W52/02 , H04W52/0225 , H04W56/00 , H04W76/20 , H04W80/00 , H04W84/18 , H04W88/16 , H04W92/00 , Y02D70/144 , Y02D70/164 , Y02D70/22 , Y02D70/324 , Y02D70/326 , Y02D70/39
摘要： A wireless mesh network routes messages between a host computer and a plurality of field devices. The mesh network is synchronized to a global regular active schedule that defines active periods when messages can be transmitted or received by nodes of the network, and inactive periods when messages cannot be transmitted or received. Based upon messages to be sent by the host computer to selected field devices, the network is controlled to selectively maintain active those nodes required to route messages to the selected field devices. Those required nodes are maintained in an active state as long as communication with the selected field devices continues, while other nodes are allowed to return to a low power inactive state. When communication between the host computer and the selected field devices is no longer required, the entire network is allowed to enter the low power inactive state.
摘要翻译：无线网状网络在主计算机和多个现场设备之间路由消息。网状网络与全局常规活动调度同步，定义当网络节点可以发送或接收消息的活动周期，以及无法发送或接收消息的无效周期。基于要由主计算机发送到所选现场设备的消息，控制网络以选择性地维护将消息路由到所选择的现场设备所需的那些节点。只要与所选择的现场设备的通信继续进行，那些所需的节点就被维持在活动状态，而其他节点被允许返回到低功率无效状态。当不再需要主计算机与所选现场设备之间的通信时，允许整个网络进入低功率无效状态。

3. 发明授权

US07986968B2 Control of field device on low power wireless networks 有权
标题翻译：低功率无线网络上现场设备的控制
公开(公告)号：US07986968B2
公开(公告)日：2011-07-26
申请号：US11652393
申请日：2007-01-11
申请人： Patrick M. Dobrowski , Eric R. Lovegren , Kelly M. Orth , Kyle L. Stotz , Robert Karschnia
发明人： Patrick M. Dobrowski , Eric R. Lovegren , Kelly M. Orth , Kyle L. Stotz , Robert Karschnia
IPC分类号： H04B1/38
CPC分类号： H04W40/10 , G05B2219/31162 , H04L41/00 , H04L41/12 , H04L41/22 , H04L43/045 , H04L45/22 , H04L45/24 , H04L45/28 , H04L47/10 , H04L47/14 , H04L47/28 , H04L47/34 , H04W4/18 , H04W8/26 , H04W16/18 , H04W16/22 , H04W24/08 , H04W40/00 , H04W40/08 , H04W40/22 , H04W40/24 , H04W52/02 , H04W52/0225 , H04W56/00 , H04W76/20 , H04W80/00 , H04W84/18 , H04W88/16 , H04W92/00 , Y02D70/144 , Y02D70/164 , Y02D70/22 , Y02D70/324 , Y02D70/326 , Y02D70/39
摘要： A control system uses a wireless network to provide communication between a host computer and field devices. The host and the field devices communicate with one another using control messages and response messages based upon a known control system protocol. The control and response messages are embedded as a payload within a wireless message that is transmitted over the wireless network. When the wireless message is received at its ultimate destination, the control or response message is separated from the wireless message and is delivered to the intended recipient (either a field device or the host computer).
摘要翻译：控制系统使用无线网络来提供主机与现场设备之间的通信。主机和现场设备使用基于已知控制系统协议的控制消息和响应消息彼此通信。控制和响应消息作为有效载荷嵌入到通过无线网络传输的无线消息中。当在其最终目的地接收到无线消息时，控制或响应消息与无线消息分离，并被传送到预期的接收者（现场设备或主机）。

4. 发明授权

US07986657B2 Selective activation of field devices in low power wireless mesh networks 有权
标题翻译：选择性激活低功率无线网状网络中的现场设备
公开(公告)号：US07986657B2
公开(公告)日：2011-07-26
申请号：US11652395
申请日：2007-01-11
申请人： Patrick M. Dobrowski , Eric R. Lovegren , Kelly M. Orth , Kyle L. Stotz
发明人： Patrick M. Dobrowski , Eric R. Lovegren , Kelly M. Orth , Kyle L. Stotz
IPC分类号： H04W4/00
CPC分类号： H04W40/10 , G05B2219/31162 , H04L41/00 , H04L41/12 , H04L41/22 , H04L43/045 , H04L45/22 , H04L45/24 , H04L45/28 , H04L47/10 , H04L47/14 , H04L47/28 , H04L47/34 , H04W4/18 , H04W8/26 , H04W16/18 , H04W16/22 , H04W24/08 , H04W40/00 , H04W40/08 , H04W40/22 , H04W40/24 , H04W52/02 , H04W52/0225 , H04W56/00 , H04W76/20 , H04W80/00 , H04W84/18 , H04W88/16 , H04W92/00 , Y02D70/144 , Y02D70/164 , Y02D70/22 , Y02D70/324 , Y02D70/326 , Y02D70/39
摘要： A control system uses a wireless network to provided communication between a host computer and field devices. The field devices are normally maintained in a lower power or sleep state. Only field devices that will be involved in a communication with the host computer are turned On and maintained On until communication between the field devices and the host computer is completed.
摘要翻译：控制系统使用无线网络来提供主机与现场设备之间的通信。现场设备通常保持在较低功率或睡眠状态。只有与主机通信的现场设备才能打开，并保持打开，直到现场设备和主机之间的通信完成。

5. 发明授权

US07924774B2 Control system with predictive field device response time over a wireless network 有权
标题翻译：通过无线网络预测现场设备响应时间的控制系统
公开(公告)号：US07924774B2
公开(公告)日：2011-04-12
申请号：US11652392
申请日：2007-01-11
申请人： Patrick M. Dobrowski , Eric R. Lovegren , Kelly M. Orth , Kyle L. Stotz
发明人： Patrick M. Dobrowski , Eric R. Lovegren , Kelly M. Orth , Kyle L. Stotz
IPC分类号： H04W4/00
CPC分类号： H04W40/10 , G05B2219/31162 , H04L41/00 , H04L41/12 , H04L41/22 , H04L43/045 , H04L45/22 , H04L45/24 , H04L45/28 , H04L47/10 , H04L47/14 , H04L47/28 , H04L47/34 , H04W4/18 , H04W8/26 , H04W16/18 , H04W16/22 , H04W24/08 , H04W40/00 , H04W40/08 , H04W40/22 , H04W40/24 , H04W52/02 , H04W52/0225 , H04W56/00 , H04W76/20 , H04W80/00 , H04W84/18 , H04W88/16 , H04W92/00 , Y02D70/144 , Y02D70/164 , Y02D70/22 , Y02D70/324 , Y02D70/326 , Y02D70/39
摘要： A host computer communicates with field devices by sending control messages and receiving response messages over a wireless network. When the host computer sends a control message to the wireless network, the host computer is provided with a predictive response time within which the field device receiving the message will respond. The wireless network cycles between a sleep state and an active state based upon a wireless network power cycle. The predicted response time is based upon the current state of the wireless network, the power cycle, and the time required for the field device to turn on, take an action (such as measuring a parameter), and generating a response message.
摘要翻译：主机通过发送控制消息并通过无线网络接收响应消息与现场设备进行通信。当主计算机向无线网络发送控制消息时，向主机提供预测响应时间，接收消息的现场设备将在该预测响应时间响应。基于无线网络功率循环，无线网络在睡眠状态和活动状态之间循环。预测的响应时间基于无线网络的当前状态，功率周期和现场设备打开所需的时间，采取动作（例如测量参数）以及生成响应消息。

6. 发明授权

US07783330B2 Control system with wireless address domain to field device address domain translation 有权
标题翻译：控制系统具有无线地址域到现场设备地址域转换
公开(公告)号：US07783330B2
公开(公告)日：2010-08-24
申请号：US11652400
申请日：2007-01-11
申请人： Patrick M. Dobrowski , Eric R. Lovegren , Kelly M. Orth , Kyle L. Stotz
发明人： Patrick M. Dobrowski , Eric R. Lovegren , Kelly M. Orth , Kyle L. Stotz
IPC分类号： H04B1/38
CPC分类号： H04W40/10 , G05B2219/31162 , H04L41/00 , H04L41/12 , H04L41/22 , H04L43/045 , H04L45/22 , H04L45/24 , H04L45/28 , H04L47/10 , H04L47/14 , H04L47/28 , H04L47/34 , H04W4/18 , H04W8/26 , H04W16/18 , H04W16/22 , H04W24/08 , H04W40/00 , H04W40/08 , H04W40/22 , H04W40/24 , H04W52/02 , H04W52/0225 , H04W56/00 , H04W76/20 , H04W80/00 , H04W84/18 , H04W88/16 , H04W92/00 , Y02D70/144 , Y02D70/164 , Y02D70/22 , Y02D70/324 , Y02D70/326 , Y02D70/39
摘要： A host computer communicates with field devices over a wireless network that includes a gateway and a plurality of wireless nodes. At least one of the field devices is associated with each wireless node, and each field device has a unique field device address. The host computer sends control messages to field devices using their field device addresses. The gateway translates the field device address of a control message to a wireless address of the wireless node with which the field device is associated. The gateway sends a wireless message over the network to the wireless node at the wireless address. The message contains the field device address so that, when the wireless message is received and opened, the control message from the host computer can be routed to the intended field device based upon the field device address.
摘要翻译：主机通过包括网关和多个无线节点的无线网络与现场设备进行通信。至少一个现场设备与每个无线节点相关联，并且每个现场设备具有唯一的现场设备地址。主机使用其现场设备地址向现场设备发送控制消息。网关将控制消息的现场设备地址转换为与现场设备相关联的无线节点的无线地址。网关通过无线地址通过网络向无线节点发送无线消息。消息包含现场设备地址，使得当无线消息被接收和打开时，来自主计算机的控制消息可以基于现场设备地址被路由到期望的现场设备。

7. 发明授权

US06722261B1 Hydraulic piston position sensor signal processing 有权
标题翻译：液压活塞位置传感器信号处理
公开(公告)号：US06722261B1
公开(公告)日：2004-04-20
申请号：US10316777
申请日：2002-12-11
申请人： Gregory C. Brown , James A. Johnson , Eric R. Lovegren
发明人： Gregory C. Brown , James A. Johnson , Eric R. Lovegren
IPC分类号： F01B2526
CPC分类号： F15B15/2869 , G01D5/48
摘要： A piston position in a cylinder of a hydraulic assembly is measured using microwave pulses. The microwave pulses are launched along a conductor coupled to the piston or cylinder. A sliding member is slidably coupled to the conductor and moves with the piston or cylinder. Position is determined as a function of a reflection from the end of the conductor and the sliding member. Various aspects include signal processing, fudicial pulse identification control and input/output circuitry, and a three conductor configuration.
摘要翻译：使用微波脉冲测量液压组件的气缸中的活塞位置。微波脉冲沿着连接到活塞或气缸的导体发射。滑动构件可滑动地联接到导体并与活塞或气缸一起移动。位置是根据从导体和滑动构件的端部的反射确定的。各种方面包括信号处理，辅助脉冲识别控制和输入/输出电路以及三导体配置。

8. 发明授权

US06628229B1 Stabilization of oscillators in a radar level transmitter 有权
标题翻译：稳定雷达液位变送器中的振荡器
公开(公告)号：US06628229B1
公开(公告)日：2003-09-30
申请号：US10209732
申请日：2002-08-01
申请人： James A. Johnson , Eric R. Lovegren
发明人： James A. Johnson , Eric R. Lovegren
IPC分类号： G01S1308
CPC分类号： G01F23/284 , G01S7/282 , G01S7/4008 , G01S13/18
摘要： A low power pulsed radar level transmitter has first and second pullable oscillator circuits that are offset from one another by a frequency offset. A third or reference crystal oscillator couples a reference frequency output to phase comparators in both the first and second crystal oscillator circuits. The phase comparators adjust biases on varactor diodes that pull the transmit and receive frequencies.
摘要翻译：低功率脉冲雷达液位变送器具有通过频率偏移彼此偏移的第一和第二可拉出振荡器电路。第三或参考晶体振荡器将参考频率输出耦合到第一和第二晶体振荡器电路中的相位比较器。相位比较器调整拉动发射和接收频率的变容二极管上的偏置。

9. 发明申请

US20080291009A1 Industrial field device with reduced power consumption 有权
标题翻译：工业现场设备功耗降低
公开(公告)号：US20080291009A1
公开(公告)日：2008-11-27
申请号：US11805728
申请日：2007-05-24
申请人： Richard L. Nelson , Eric R. Lovegren , James A. Johnson
发明人： Richard L. Nelson , Eric R. Lovegren , James A. Johnson
IPC分类号： G08B1/08 , H04Q7/00
CPC分类号： G05B19/042 , G05B2219/25282 , G05B2219/25286
摘要： A field device for use in monitoring or controlling an industrial process includes two wire process control loop electrical connections. Digital communications monitoring circuitry coupled to the electrical connections and is configured to control power to the field device electrical circuitry in response to a digital signal on the two wire process control loop.
摘要翻译：用于监测或控制工业过程的现场设备包括两线制过程控制回路电连接。耦合到电连接的数字通信监控电路，并被配置为响应于两线制过程控制回路上的数字信号来控制对现场设备电路的电力。

10. 发明授权

US06445192B1 Close proximity material interface detection for a microwave level transmitter 有权
标题翻译：用于微波级发射器的近距离材料接口检测
公开(公告)号：US06445192B1
公开(公告)日：2002-09-03
申请号：US09542677
申请日：2000-04-04
申请人： Eric R. Lovegren , David L. Pederson
发明人： Eric R. Lovegren , David L. Pederson
IPC分类号： G01R2704
CPC分类号： G01S7/292 , G01F23/284
摘要： A method for detecting the presence of a twin peak pulse in a waveform, generated by a microwave level transmitter, that is used to detect levels of first and second material interfaces relating to materials contained in a tank. The waveform develops a twin peak pulse when the first and second material interfaces are in close proximity to one another. The twin peak pulse contains overlapping first and second received wave pulses reflected from the first and second material interfaces, respectively. The method determines that the waveform contains a twin peak pulse when both a first peak point relating to the first received wave pulse and a valley are detected. A microwave level transmitter having an interface detection module that is configured to use the method of the present invention to detect the existence of a twin peak pulse in a waveform.
摘要翻译：一种用于检测由微波级发射器产生的波形中双峰脉冲的存在的方法，其用于检测与容纳在容器中的材料相关的第一和第二材料界面的水平。当第一和第二材料界面彼此靠近时，波形产生双峰脉冲。双峰脉冲分别包含从第一和第二材料界面反射的重叠的第一和第二接收波脉冲。当检测到与第一接收波脉冲相关的第一峰值点和谷值时，该方法确定波形包含双峰脉冲。一种具有接口检测模块的微波级发射机，其配置为使用本发明的方法来检测波形中双峰脉冲的存在。

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