专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2008127688A1 SYNCHRONIZING TIMESLOTS IN A WIRELESS COMMUNICATION PROTOCOL 审中-公开
标题翻译：在无线通信协议中同步时序
公开(公告)号：WO2008127688A1
公开(公告)日：2008-10-23
申请号：PCT/US2008/004775
申请日：2008-04-11
申请人： HART COMMUNICATION FOUNDATION , PRATT, Wallace, A. , NIXON, Mark, J. , ROTVOLD, Eric, D. , PRAMANIK, Robin, S. , LENNVALL, Tomas, P. , ZATS, Yuri
发明人： PRATT, Wallace, A. , NIXON, Mark, J. , ROTVOLD, Eric, D. , PRAMANIK, Robin, S. , LENNVALL, Tomas, P. , ZATS, Yuri
IPC分类号： H04L12/28 , H04L7/00
CPC分类号： H04W84/18 , H04W56/00
摘要： A method for synchronizing communications in wireless mesh network operating in a process control environment and including a plurality of network devices includes defining a communication timeslot of a predetermined duration, wherein each of the plurality of network devices transmits or receives data only within the communication timeslot generating a network schedule including at least one superframe having repeating superframe cycles each having a number of communication timeslots sequentially numbered relative to a beginning of each cycle, the number of communication timeslots defining a length of the at least one superframe, maintaining an absolute slot number indicative of a number of communication timeslots scheduled since a start time of the wireless network, synchronizing each of the plurality of network devices with respect to a timing of an individual communication timeslot, and synchronizing each of the plurality of network devices with the network schedule based on the absolute slot number.
摘要翻译：一种在过程控制环境中操作并包括多个网络设备的无线网状网络中的通信同步的方法包括：定义预定持续时间的通信时隙，其中，所述多个网络设备中的每一个仅在所述通信时隙内产生或接收数据网络调度包括至少一个具有重复超帧周期的超帧，每个超帧具有相对于每个周期的开始顺序编号的多个通信时隙，定义所述至少一个超帧的长度的通信时隙的数量，维持绝对时隙号指示从无线网络的开始时间安排的多个通信时隙中的多个网络设备中的每一个相对于各个通信时隙的定时同步，并且基于多个网络设备中的每一个基于绝对 ollot槽号。

2. 发明申请

WO2008127631A1 ADAPTIVE SCHEDULING IN A WIRELESS NETWORK 审中-公开
标题翻译：无线网络中的自适应调度
公开(公告)号：WO2008127631A1
公开(公告)日：2008-10-23
申请号：PCT/US2008/004677
申请日：2008-04-11
申请人： HART COMMUNICATION FOUNDATION , PRATT, Wallace, A. , NIXON, Mark, J. , ROTVOLD, Eric, D. , PRAMANIK, Robin, S. , LENNVALL, Tomas, P. , BLEVINS, Terrence, L.
发明人： PRATT, Wallace, A. , NIXON, Mark, J. , ROTVOLD, Eric, D. , PRAMANIK, Robin, S. , LENNVALL, Tomas, P. , BLEVINS, Terrence, L.
IPC分类号： H04L12/28
CPC分类号： H04L12/66 , H04W40/20 , H04W72/0446 , H04W84/18 , Y02D70/142 , Y02D70/144 , Y02D70/22 , Y02D70/38
摘要： A method of adaptively scheduling communications in a wireless mesh network including a plurality of network nodes includes generating a network routing scheme based on a topology of the wireless mesh network, generating a communication schedule for the wireless mesh network, and automatically updating the communication schedule in response to detecting a change in a transmission requirement of at least one of the plurality of network nodes. The act of generating a communication schedule includes defining a communication timeslot of a predefined duration and defining a plurality of superframes as repeating cycles of a certain number of consecutively scheduled communication timeslots.
摘要翻译：一种在包括多个网络节点的无线网状网络中自适应调度通信的方法包括基于无线网状网络的拓扑生成网络路由方案，生成无线网状网络的通信调度，并自动更新通信调度表响应于检测多个网络节点中的至少一个的传输需求的变化。生成通信调度的动作包括定义预定持续时间的通信时隙并将多个超帧定义为一定数量的连续调度的通信时隙的重复周期。

3. 发明申请

WO2009017521A2 COMBINED WIRED AND WIRELESS COMMUNICATIONS WITH FIELD DEVICES IN A PROCESS CONTROL ENVIRONMENT 审中-公开
标题翻译：过程控制环境下有线和无线通信与现场设备的组合
公开(公告)号：WO2009017521A2
公开(公告)日：2009-02-05
申请号：PCT/US2008/004750
申请日：2008-04-11
申请人： HART COMMUNICATION FOUNDATION , PRATT, Wallace, A. , NIXON, Mark, J. , ROTVOLD, Eric, D. , PRAMANIK, Robin, S. , LENNVALL, Tomas, P.
发明人： PRATT, Wallace, A. , NIXON, Mark, J. , ROTVOLD, Eric, D. , PRAMANIK, Robin, S. , LENNVALL, Tomas, P.
IPC分类号： H04L12/28 , H04L12/66
CPC分类号： G01D21/00 , H04W24/00 , H04W56/0015 , H04W56/002 , H04W80/00
摘要： A method of providing a wireless extension to a plant automation network connected to a plurality of wired devices, each wired device performing a process control function, includes connecting a plurality of wireless devices to the plant automation network, each of the plurality of wireless devices adapted to communicate with at least another one of the plurality of wireless devices via at least one respective wireless connection; and providing access to each of the plurality of wireless devices from a host disposed in the plant automation network, such that the host accesses the plurality of wired devices and the plurality of wireless devices using a common communication scheme.
摘要翻译：向连接到多个有线设备的工厂自动化网络提供无线扩展的方法，每个有线设备执行过程控制功能，包括将多个无线设备连接到工厂自动化网络，所述多个无线设备中的每一个适于经由至少一个相应的无线连接与所述多个无线设备中的至少另一个进行通信; 以及从布置在工厂自动化网络中的主机提供对多个无线设备中的每一个的访问，使得主机使用公共通信方案访问多个有线设备和多个无线设备。

4. 发明申请

WO2009008937A2 PRIORITY-BASED SCHEDULING AND ROUTING IN A WIRELESS NTEWORK 审中-公开
标题翻译：在无线网络中基于优先级的调度和路由
公开(公告)号：WO2009008937A2
公开(公告)日：2009-01-15
申请号：PCT/US2008/004749
申请日：2008-04-11
申请人： HART COMMUNICATON FOUNDATION , PRATT, Wallace, A. , NIXON, Mark, J. , ROTVOLD, Eric, D. , PRAMANIK, Robin, S. , LENNAVALL, Tomas, P. , BLEVINS, Terrence, L.
发明人： PRATT, Wallace, A. , NIXON, Mark, J. , ROTVOLD, Eric, D. , PRAMANIK, Robin, S. , LENNAVALL, Tomas, P. , BLEVINS, Terrence, L.
CPC分类号： G01D21/00 , H04W24/00 , H04W56/0015 , H04W56/002 , H04W80/00
摘要： A method of routing data in a mesh communication network including a plurality of network devices and operating in a process control environment, including assigning one of a plurality of priority levels associated with the communication network to a data packet, sending the data packet from a source network device included in the plurality of network devices to a destination network device included in the plurality of network devices, and routing the data packet to a destination network device via at least one intermediate network device included in the plurality of network devices. The act of routing includes comparing, at each intermediate network device, the priority level of the data packet to a priority mask of the intermediate network device, and modifying at least one of scheduling or routing of the data packet if the priority level of the data packet is not associated with the priority mask of the intermediate network device.
摘要翻译：一种在包括多个网络设备并在过程控制环境中操作的网状通信网络中路由数据的方法，包括将与通信网络相关联的多个优先级中的一个分配给数据分组，从源发送数据分组包括在多个网络设备中的网络设备到包括在多个网络设备中的目的地网络设备，并且经由包括在多个网络设备中的至少一个中间网络设备将数据分组路由到目的地网络设备。路由动作包括在每个中间网络设备处将数据分组的优先级别与中间网络设备的优先级掩码进行比较，并且如果数据的优先级别修改数据分组的调度或路由中的至少一个分组不与中间网络设备的优先级掩码相关联。

5. 发明申请

WO2008127683A1 SCHEDULING COMMUNICATION FRAMES IN A WIRELESS NETWORK 审中-公开
标题翻译：在无线网络中调度通信框架
公开(公告)号：WO2008127683A1
公开(公告)日：2008-10-23
申请号：PCT/US2008/004761
申请日：2008-04-11
申请人： HART COMMUNICATION FOUNDATION , PRATT, Wallace, A. , NIXON, Mark, J. , ROTVOLD, Eric, D. , PRAMANIK, Robin, S , LENNVALL, Tomas, P. , ZATS, Yuri , BLEVINS, Terrence, L.
发明人： PRATT, Wallace, A. , NIXON, Mark, J. , ROTVOLD, Eric, D. , PRAMANIK, Robin, S , LENNVALL, Tomas, P. , ZATS, Yuri , BLEVINS, Terrence, L.
IPC分类号： H04L12/28
CPC分类号： H04W84/18 , H04J4/00 , H04W72/1205
摘要： A method of scheduling communications in a multi-node wireless mesh network which has a first network device and a second network device includes defining a communication timeslot of a predetermined duration, defining a first superframe having a repeating superframe cycle including a first number of the communication timeslots, defining a second superframe having a repeating superframe cycle including a second number of the communication timeslots, aligning the first superframe with the second superframe, so that one of the timeslots of the first superframe begins simultaneously with one of the timeslots of the second superframe, and associating the first and the second superframes with a network schedule, so that the first network device and the second network device transmit data according to the network schedule.
摘要翻译：一种在具有第一网络设备和第二网络设备的多节点无线网状网络中调度通信的方法包括定义预定持续时间的通信时隙，定义具有重复超帧周期的第一超帧，所述重复超帧周期包括第一数量的通信定义具有包括第二数量的通信时隙的重复超帧周期的第二超帧，使第一超帧与第二超帧对准，使得第一超帧的时隙之一与第二超帧的时隙之一同时开始并且将第一和第二超帧与网络调度相关联，使得第一网络设备和第二网络设备根据网络调度来发送数据。

6. 发明申请

WO2009008938A3 INCREASING RELIABILITY AND REDUCING LATENCY IN A WIRELESS NETWORK 审中-公开
公开(公告)号：WO2009008938A3
公开(公告)日：2009-08-13
申请号：PCT/US2008004777
申请日：2008-04-11
申请人： HART COMM FOUNDATION , PRATT WALLACE A , NIXON MARK J , ROTVOLD ERIC D , PRAMANIK ROBIN S , LENNVALL TOMAS P , BLEVINS TERRENCE L
发明人： PRATT WALLACE A , NIXON MARK J , ROTVOLD ERIC D , PRAMANIK ROBIN S , LENNVALL TOMAS P , BLEVINS TERRENCE L
IPC分类号： H04L12/28
CPC分类号： G01D21/00 , H04W24/00 , H04W56/0015 , H04W56/002 , H04W80/00
摘要： A mesh communication network for use in, for example, process control plants includes a plurality of network devices transmitting and receiving data according to a network schedule defined as a set of concurrent overlapping superframes, and along a set of graphs defining communication paths between pairs of network devices. A network manager residing in or outside the communication network develops a routing scheme for the network by analyzing the topology of the network and defining a set of graphs for use in routing or transmitting data between various nodes of the network, each graph including one or more communication paths between pairs of network devices. Concurrently or consequently, the network manager defines the network schedule in view of at least transmission requirements, power availability, and signal quality at each network device. If desired, the network manager may begin to define the network schedule upon completing the definition of the graphs of the communication network, so that the network manager may define the network schedule in view both the defined graphs and the transmission, power, etc. parameters associated with each network device.

7. 发明申请

WO2009008934A2 ROUTING PACKETS ON A NETWORK USING DIRECTED GRAPHS 审中-公开
标题翻译：使用有向图在网络上路由数据包
公开(公告)号：WO2009008934A2
公开(公告)日：2009-01-15
申请号：PCT/US2008004740
申请日：2008-04-11
申请人： HART COMM FOUNDATION , PRATT WALLACE A , NIXON MARK J , ROTVOLD ERIC D , PRAMANIK ROBIN S , LENNVALL TOMAS P , ZATS YURI , BLEVINS TERRENCE L
发明人： PRATT WALLACE A , NIXON MARK J , ROTVOLD ERIC D , PRAMANIK ROBIN S , LENNVALL TOMAS P , ZATS YURI , BLEVINS TERRENCE L
CPC分类号： H04L12/66 , H04L45/22 , H04L45/34 , H04L45/42 , H04L45/44 , H04W40/22 , Y02D70/00 , Y02D70/1222 , Y02D70/142 , Y02D70/144 , Y02D70/22 , Y02D70/39
摘要： A method of routing a data packet between a first node and a second node on a communication network includes defining a first graph through the first node and the second node and zero or more intermediate nodes, associating several nodes which belong to the communication network with the first graph, associating a first unique graph identifier with the first graph and providing at least partial definitions of the first graph and the first unique identifier to at least some of the nodes associated with the first graph. The method then sends data packet with the graph identifier from the first node, and directs the data packet to the second node via the zero or more intermediate nodes using the graph identifier. This method may include forwarding the packet to a neighbor node of an intermediate node if the intermediate node and the neighbor node are nodes associated with the first graph and if the intermediate node and the neighbor node are connected by at least one direct communication connection.
摘要翻译：一种在通信网络上在第一节点和第二节点之间路由数据分组的方法包括：通过第一节点和第二节点以及零个或更多个中间节点定义第一图，将属于通信网络的若干节点与将第一唯一图形标识符与第一图形相关联，并将第一图形和第一唯一标识符的至少部分定义提供给与第一图形相关联的至少一些节点。然后该方法从第一节点发送具有图形标识符的数据分组，并且使用图形标识符经由零个或更多个中间节点将数据分组引导到第二节点。如果中间节点和邻居节点是与第一图形相关联的节点并且中间节点和邻居节点通过至少一个直接通信连接连接，则该方法可以包括将分组转发到中间节点的邻居节点。

8. 发明申请

WO2008127630A1 EFFICIENT ADDRESSING IN WIRELESS HART PROTOCOL 审中-公开
标题翻译：在无线HART协议中高效处理
公开(公告)号：WO2008127630A1
公开(公告)日：2008-10-23
申请号：PCT/US2008/004676
申请日：2008-04-11
申请人： HART COMMUNICATION FOUNDATION , PRATT, Wallace, A. , NIXON, Mark, J. , ROTVOLD, Eric, D. , PRAMANIK, Robin, S. , LENNVALL, Tomas, P.
发明人： PRATT, Wallace, A. , NIXON, Mark, J. , ROTVOLD, Eric, D. , PRAMANIK, Robin, S. , LENNVALL, Tomas, P.
IPC分类号： H04L12/28 , H04L29/06
CPC分类号： H04W84/10 , H04L12/66 , H04L29/12254 , H04L61/2038 , H04L67/12 , H04W8/26 , H04W92/10
摘要： A method of providing a wireless extension to a wired protocol for transferring data to and from a field device operating in a process control environment via a wired connection, wherein the wired protocol and the wireless extension to the wired protocol have at least one protocol layer in common includes associating a unique address consistent with an addressing scheme of the wired protocol with each of a plurality of wireless devices operating in the process control environment and forming a wireless network, such that a data packet is routed between two of the plurality of wireless devices based on the unique address; associating a network identifier with the plurality of wireless devices; forming, for each of the plurality of wireless devices, a global address including the respective unique address and the network identifier in accordance with a second addressing scheme; and providing access to an external host operating outside the wireless network to each of the plurality of wireless devices based on the global address associated with the wireless device specified at the external host.
摘要翻译：一种向有线协议提供无线扩展的方法，用于经由有线连接向在过程控制环境中操作的现场设备传送数据和从现场设备传送数据，其中有线协议和对有线协议的无线扩展具有至少一个协议层通常包括将与有线协议的寻址方案一致的唯一地址与在过程控制环境中操作的多个无线设备中的每一个相关联并且形成无线网络，使得数据分组在多个无线设备中的两个之间路由基于独特的地址; 将网络标识符与所述多个无线设备相关联; 根据第二寻址方案，为所述多个无线设备中的每一个形成包括相应的唯一地址和所述网络标识符的全局地址; 以及基于与在所述外部主机指定的所述无线设备相关联的全球地址，向所述多个无线设备中的每一个提供对在所述无线网络之外运行的外部主机的访问。

9. 发明申请

WO2009008935A3 SUPPORT FOR NETWORK MANAGEMENT AND DEVICE COMMUNICATIONS IN A WIRELESS NETWORK 审中-公开
标题翻译：支持无线网络中的网络管理和设备通信
公开(公告)号：WO2009008935A3
公开(公告)日：2010-03-11
申请号：PCT/US2008004745
申请日：2008-04-11
申请人： HART COMM FOUNDATION , PRATT WALLACE A , NIXON MARK J , ROTVOLD ERIC D , PRAMANIK ROBIN S , LENNVALL TOMAS P
发明人： PRATT WALLACE A , NIXON MARK J , ROTVOLD ERIC D , PRAMANIK ROBIN S , LENNVALL TOMAS P
IPC分类号： H04L12/28 , H04L12/56
CPC分类号： G01D21/00 , H04W24/00 , H04W56/0015 , H04W56/002 , H04W80/00
摘要： A method of efficiently operating a wireless communication network in a process control environment, such that the wireless communication network includes a plurality of field devices, includes defining a communication protocol for supporting wireless communications between pairs of the plurality of field devices, including providing a set of protocol commands, transferring process control data from at least some of the plurality of field devices using a first subset of the set of protocol commands of the communication protocol, and transferring network management data to at least some of the plurality of field devices using a second subset of the set of protocol commands of the communication protocol.
摘要翻译：一种在过程控制环境中有效地操作无线通信网络的方法，使得无线通信网络包括多个现场设备，包括定义用于支持多个现场设备的成对之间的无线通信的通信协议，包括提供一组使用所述通信协议的协议命令集合的第一子集来传送来自所述多个现场设备中的至少一些现场设备的过程控制数据，以及使用以下步骤将网络管理数据传送到所述多个现场设备中的至少一些：通信协议的协议命令集合的第二子集。

10. 发明申请

WO2009008937A3 PRIORITY-BASED SCHEDULING AND ROUTING IN A WIRELESS NTEWORK 审中-公开
标题翻译：无线NTEWORK中基于优先级的调度和路由选择
公开(公告)号：WO2009008937A3
公开(公告)日：2009-08-13
申请号：PCT/US2008004749
申请日：2008-04-11
申请人： HART COMMUNICATON FOUNDATION , PRATT WALLACE A , NIXON MARK J , ROTVOLD ERIC D , PRAMANIK ROBIN S , LENNAVALL TOMAS P , BLEVINS TERRENCE L
发明人： PRATT WALLACE A , NIXON MARK J , ROTVOLD ERIC D , PRAMANIK ROBIN S , LENNAVALL TOMAS P , BLEVINS TERRENCE L
IPC分类号： H04L12/28
CPC分类号： G01D21/00 , H04W24/00 , H04W56/0015 , H04W56/002 , H04W80/00
摘要： A method of routing data in a mesh communication network including a plurality of network devices and operating in a process control environment, including assigning one of a plurality of priority levels associated with the communication network to a data packet, sending the data packet from a source network device included in the plurality of network devices to a destination network device included in the plurality of network devices, and routing the data packet to a destination network device via at least one intermediate network device included in the plurality of network devices. The act of routing includes comparing, at each intermediate network device, the priority level of the data packet to a priority mask of the intermediate network device, and modifying at least one of scheduling or routing of the data packet if the priority level of the data packet is not associated with the priority mask of the intermediate network device.
摘要翻译：一种在包括多个网络设备并且在过程控制环境中操作的网状通信网络中路由数据的方法，所述方法包括：将与所述通信网络相关联的多个优先级中的一个优先级分配给数据分组;将数据分组从源所述多个网络设备中包括的网络设备到包括在所述多个网络设备中的目的地网络设备，并且经由包括在所述多个网络设备中的至少一个中间网络设备将所述数据分组路由到目的地网络设备。路由的动作包括在每个中间网络设备处将数据分组的优先级与中间网络设备的优先级掩码进行比较，并且如果数据的优先级等级修改数据分组的调度或路由中的至少一个分组不与中间网络设备的优先级掩码相关联。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式