Patents by Inventor Eric D. Rotvold

Eric D. Rotvold has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11531325
    Abstract: A nodal communication network of a process control or factory automation system includes nodes that are highly versatile (HV) field devices storing respective tag identifications. A DHCP server assigns respective endpoint identifications to nodes that connect to the network. A network node manager manages a mapping database that stores associations of tag identifications of network nodes with the assigned endpoint identifications, and a state database that stores updated states of the network nodes. A DNS server responds, in conjunction with the network node manager, to requests for endpoint identifications to allow nodes to be discovered within the network. An HV device node is a data source that establishes and maintains (sometimes simultaneously) respective communication sessions over the network with one or more other nodes that are consumers of the data generated by the HV devices, and data delivered via the communication sessions may be used to control an industrial process.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: December 20, 2022
    Assignee: FISHER-ROSEMOUNT SYSTEMS, INC.
    Inventors: Mark J. Nixon, Gary K. Law, Eric D. Rotvold, Neil J. Peterson
  • Publication number: 20220075354
    Abstract: A nodal communication network of a process control or factory automation system includes nodes that are highly versatile (HV) field devices storing respective tag identifications. A DHCP server assigns respective endpoint identifications to nodes that connect to the network. A network node manager manages a mapping database that stores associations of tag identifications of network nodes with the assigned endpoint identifications, and a state database that stores updated states of the network nodes. A DNS server responds, in conjunction with the network node manager, to requests for endpoint identifications to allow nodes to be discovered within the network. An HV device node is a data source that establishes and maintains (sometimes simultaneously) respective communication sessions over the network with one or more other nodes that are consumers of the data generated by the HV devices, and data delivered via the communication sessions may be used to control an industrial process.
    Type: Application
    Filed: September 10, 2020
    Publication date: March 10, 2022
    Inventors: Mark J. Nixon, Gary K. Law, Eric D. Rotvold, Neil J. Peterson
  • Patent number: 11199824
    Abstract: A control technique controls a process in a manner that reduces the number of controller changes provided to a controlled device, and so reduces the power consumption of the controlled device along with the loading of a process control communications network disposed between the controller and the controlled device. This technique is very useful in a control system having wirelessly connected field devices, such as sensors and valves which, in many cases, operate off of battery power. Moreover, the control technique is useful in implementing a control system in which control signals are subject to intermittent, non-synchronized or significantly delayed communications and/or in a control system that receives intermittent, non-synchronized or significantly delayed process variable measurements to be used as feedback signals in the performance of closed-loop control.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: December 14, 2021
    Assignee: FISHER-ROSEMOUNT SYSTEMS, INC.
    Inventors: Terrence L. Blevins, Mark J. Nixon, Kurtis K. Jensen, Mitchell S. Panther, Deji Chen, Eric D. Rotvold
  • Patent number: 10282676
    Abstract: Techniques for automatically or autonomously performing signal processing-based learning in a process plant are disclosed. Generally, said techniques automatically or autonomously perform signal processing on a real-time signal that is generated based on the process plant controlling a process. Typically, the signal corresponds to a parameter value that varies over time, and the signal is processed as it is generated in real-time during on-line plant operations. Results of the signal processing may indicate characteristics of the signal, and one or more analytics functions may determine the sources of the characteristics, which may include a process element or device, a piece of equipment, and/or an asset of the process plant that is upstream, within the process, of the source of the signal. An autonomous signal processor may be integrated with or included in a process control device and/or a big data node of the process plant.
    Type: Grant
    Filed: October 6, 2014
    Date of Patent: May 7, 2019
    Assignee: FISHER-ROSEMOUNT SYSTEMS, INC.
    Inventors: Mark J. Nixon, Peter Zornio, Wilhelm K. Wojsznis, J. Michael Lucas, Paul R. Muston, Eric D. Rotvold, Terrence L. Blevins
  • Patent number: 10168691
    Abstract: A data pipeline is used as a fundamental processing element for implementing techniques that automatically or autonomously perform signal processing-based learning in a process plant or monitoring system. Each data pipeline includes a set of communicatively interconnected data processing blocks that perform processing on one or more sources of data in a predetermined order to, for example, clean the data, filter the data, select data for further processing, perform supervised or unsupervised learning on the data, etc. The individual processing blocks or modules within a data pipeline may be stored and executed at different devices in a plant network to perform distributed data processing. Moreover, each data pipeline can be integrated into one or more higher level analytic modules that perform higher level analytics, such as quality prediction, fault detection, etc. on the processed data.
    Type: Grant
    Filed: October 2, 2015
    Date of Patent: January 1, 2019
    Assignee: FISHER-ROSEMOUNT SYSTEMS, INC.
    Inventors: Peter Zornio, Mark J. Nixon, Wilhelm K. Wojsznis, Michael J. Lucas, Paul R. Muston, Eric D. Rotvold, Terrence L. Blevins, Gary K. Law
  • Patent number: 9823626
    Abstract: A regional big data node oversees or services, during real-time operations of a process plant or process control system, a respective region of a plurality of regions of the plant/system, where at least some of the regions each includes one or more process control devices that operate to control a process executed in the plant/system. The regional big data node is configured to receive and store, as big data, streamed data and learned knowledge that is generated, received, or observed by its respective region, and to perform one or more learning analyses on at least some of the stored data. As a result of the learning analyses, the regional big data node creates new learned knowledge which the regional big data node may use to modify operations in its respective region, and/or which the regional big data node may transmit to other big data nodes of the plant/system.
    Type: Grant
    Filed: October 6, 2014
    Date of Patent: November 21, 2017
    Assignee: FISHER-ROSEMOUNT SYSTEMS, INC.
    Inventors: Peter Zornio, Mark J. Nixon, Wilhelm K. Wojsznis, J. Michael Lucas, Eric D. Rotvold, Terrence L. Blevins, Paul Richard Muston, Gary K. Law
  • Patent number: 9532232
    Abstract: A method of evaluating a potential location to add a wireless field device to an existing network of a plurality of existing wireless field devices is provided. The method includes placing a handheld field maintenance tool in the potential location and causing the handheld field maintenance tool to identify wireless field devices within communicative range of the potential location. Information related to wireless communication at the potential location is viewed. Methods are also provided for identifying a selected field device in a process installation using a handheld field maintenance tool.
    Type: Grant
    Filed: May 14, 2010
    Date of Patent: December 27, 2016
    Assignee: Fisher-Rosemount Systems, Inc.
    Inventors: Alan Roger Dewey, Joseph Citrano, III, Todd Mitchell Toepke, Alden Chester Russell, III, Eric D. Rotvold
  • Patent number: 9503906
    Abstract: A method of evaluating a potential location to add a wireless field device to an existing network of a plurality of existing wireless field devices is provided. The method includes placing a handheld field maintenance tool in the potential location and causing the handheld field maintenance tool to identify wireless field devices within communicative range of the potential location. Information related to wireless communication at the potential location is viewed. Methods are also provided for identifying a selected field device in a process installation using a handheld field maintenance tool.
    Type: Grant
    Filed: October 14, 2013
    Date of Patent: November 22, 2016
    Assignee: Fisher-Rosemount System, Inc.
    Inventors: Alan R. Dewey, Joseph Citrano, III, Todd Mitchell Toepke, Alden C. Russell, III, Eric D. Rotvold
  • Patent number: 9454744
    Abstract: An asset tracking system for use in a process control environment may include one or more asset tracking devices and an asset tracking host. The asset tracking device may receive signals corresponding to a position or location of an asset to be tracked, and may communicate, using an industrial automation protocol such as wireless HART, an indication of the position to the asset tracking host. The signals may be GPS signals that are re-radiated into the process control environment. Other information, such as environmental data, may be communicated in conjunction with the position of the asset. The asset tracking host may store and/or display the data or information included in the message, and may send a different message to the asset tracking device. An asset tracking device may be included in a field device, a network device, or a portable communications device used in the process control environment.
    Type: Grant
    Filed: September 2, 2011
    Date of Patent: September 27, 2016
    Assignee: FISHER-ROSEMOUNT SYSTEMS, INC.
    Inventors: David P. Imming, Peter Zornio, Trevor D. Schleiss, Neil J. Peterson, Mark J. Nixon, Eric D. Rotvold, Robert J. Karschnia
  • Publication number: 20160098021
    Abstract: A regional big data node oversees or services, during real-time operations of a process plant or process control system, a respective region of a plurality of regions of the plant/system, where at least some of the regions each includes one or more process control devices that operate to control a process executed in the plant/system. The regional big data node is configured to receive and store, as big data, streamed data and learned knowledge that is generated, received, or observed by its respective region, and to perform one or more learning analyses on at least some of the stored data. As a result of the learning analyses, the regional big data node creates new learned knowledge which the regional big data node may use to modify operations in its respective region, and/or which the regional big data node may transmit to other big data nodes of the plant/system.
    Type: Application
    Filed: October 6, 2014
    Publication date: April 7, 2016
    Inventors: Peter Zornio, Mark J. Nixon, Wilhelm K. Wojsznis, J. Michael Lucas, Eric D. Rotvold, Terrence L. Blevins, Paul Richard Muston, Gary K. Law
  • Publication number: 20160098037
    Abstract: A data pipeline is used as a fundamental processing element for implementing techniques that automatically or autonomously perform signal processing-based learning in a process plant or monitoring system. Each data pipeline includes a set of communicatively interconnected data processing blocks that perform processing on one or more sources of data in a predetermined order to, for example, clean the data, filter the data, select data for further processing, perform supervised or unsupervised learning on the data, etc. The individual processing blocks or modules within a data pipeline may be stored and executed at different devices in a plant network to perform distributed data processing. Moreover, each data pipeline can be integrated into one or more higher level analytic modules that perform higher level analytics, such as quality prediction, fault detection, etc. on the processed data.
    Type: Application
    Filed: October 2, 2015
    Publication date: April 7, 2016
    Inventors: Peter Zornio, Mark J. Nixon, Wilhelm K. Wojsznis, Michael J. Lucas, Paul R. Muston, Eric D. Rotvold, Terrence L. Blevins, Gary K. Law
  • Publication number: 20160098647
    Abstract: Techniques for automatically or autonomously performing signal processing-based learning in a process plant are disclosed. Generally, said techniques automatically or autonomously perform signal processing on a real-time signal that is generated based on the process plant controlling a process. Typically, the signal corresponds to a parameter value that varies over time, and the signal is processed as it is generated in real-time during on-line plant operations. Results of the signal processing may indicate characteristics of the signal, and one or more analytics functions may determine the sources of the characteristics, which may include a process element or device, a piece of equipment, and/or an asset of the process plant that is upstream, within the process, of the source of the signal. An autonomous signal processor may be integrated with or included in a process control device and/or a big data node of the process plant.
    Type: Application
    Filed: October 6, 2014
    Publication date: April 7, 2016
    Inventors: Mark J. Nixon, Peter Zornio, Wilhelm K. Wojsznis, J. Michael Lucas, Paul R. Muston, Eric D. Rotvold, Terrence L. Blevins
  • Patent number: 9270642
    Abstract: A process communication device includes a process communication interface for communicating on a process communication loop in accordance with a process communication protocol. A controller is coupled to the process communication interface. A rules store is coupled to the controller, and has at least one process communication packet rule that is based on the process communication protocol. The controller applies the at least one process communication packet rule to at least one process communication packet received from the process communication interface, and generates event information when a process communication packet fails at least one process communication packet rule.
    Type: Grant
    Filed: October 13, 2011
    Date of Patent: February 23, 2016
    Assignee: Rosemount Inc.
    Inventors: Eric D. Rotvold, Jeff D. Potter
  • Patent number: 9210581
    Abstract: A method of commissioning a wireless field device is provided. The method includes communicatively coupling a handheld field maintenance tool to the wireless field device to obtain a wireless field device identifier. A wireless network is selected. Wireless communication is generated between the handheld field maintenance tool and a wireless gateway to automatically obtain a join key for the wireless field device identifier. The join key is written to the wireless field device with the handheld field maintenance tool.
    Type: Grant
    Filed: May 14, 2010
    Date of Patent: December 8, 2015
    Assignee: Fisher-Rosemount Systems, Inc.
    Inventors: Todd Mitchell Toepke, Joseph Citrano, III, Alan Roger Dewey, Alden Chester Russell, III, Eric D. Rotvold
  • Publication number: 20150192907
    Abstract: A control technique controls a process in a manner that reduces the number of controller changes provided to a controlled device, and so reduces the power consumption of the controlled device along with the loading of a process control communications network disposed between the controller and the controlled device. This technique is very useful in a control system having wirelessly connected field devices, such as sensors and valves which, in many cases, operate off of battery power. Moreover, the control technique is useful in implementing a control system in which control signals are subject to intermittent, non-synchronized or significantly delayed communications and/or in a control system that receives intermittent, non-synchronized or significantly delayed process variable measurements to be used as feedback signals in the performance of closed-loop control.
    Type: Application
    Filed: March 19, 2015
    Publication date: July 9, 2015
    Inventors: Terrence L. Blevins, Mark J. Nixon, Kurtis K. Jensen, Mitchell S. Panther, Deji Chen, Eric D. Rotvold
  • Patent number: 8942219
    Abstract: 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.
    Type: Grant
    Filed: April 10, 2008
    Date of Patent: January 27, 2015
    Assignee: Hart Communication Foundation
    Inventors: Wallace A. Pratt, Jr., Mark J. Nixon, Eric D. Rotvold, Robin S. Pramanik, Tomas P. Lennvall
  • Patent number: 8892769
    Abstract: 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.
    Type: Grant
    Filed: May 12, 2011
    Date of Patent: November 18, 2014
    Assignee: Hart Communication Foundation
    Inventors: Wallace A. Pratt, Jr., Mark J. Nixon, Eric D. Rotvold, Robin S. Pramanik, Tomas P. Lennvall, Yuri Zats, Terrence Lynn Blevins
  • Patent number: 8798084
    Abstract: 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.
    Type: Grant
    Filed: April 10, 2008
    Date of Patent: August 5, 2014
    Assignee: Hart Communication Foundation
    Inventors: Wallace A. Pratt, Jr., Mark J. Nixon, Eric D. Rotvold, Robin S. Pramanik, Tomas P. Lennvall, Terrence L. Blevins
  • Patent number: 8676219
    Abstract: 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.
    Type: Grant
    Filed: April 10, 2008
    Date of Patent: March 18, 2014
    Assignee: Hart Communication Foundation
    Inventors: Wallace A. Pratt, Jr., Mark J. Nixon, Eric D. Rotvold, Robin S. Pramanik, Tomas P. Lennvall
  • Patent number: 8670746
    Abstract: A method of enhancing security in a wireless mesh communication network operating in a process control environment and including a plurality of wireless network devices includes processing a join request from a wireless device wishing to join the wireless mesh communication network, providing a limited network functionality to the wireless device if the join request is granted, requesting a complete approval of the wireless device; and granting a full network functionality to the wireless device if the complete approval of the wireless device is received.
    Type: Grant
    Filed: April 10, 2008
    Date of Patent: March 11, 2014
    Assignee: Hart Communication Foundation
    Inventors: Wallace A. Pratt, Jr., Mark J. Nixon, Eric D. Rotvold, Robin S. Pramanik, Thomas L. Phinney, Tomas P. Lennvall, Yuri Zats, Frederick Enns