Rosemount Inc.

Fisher-Rosemount Systems, Inc

Daniel Clifford Carlson

Robert J Karschnia

Joseph Citrano, Iii

Jeffrey Dale Potter

Marcos Peluso

Eric Darrell Rotvold

Kelly Michael Orth

Theodore Henry Schnaare

Murray Freeman

Peter Hodgson

Kevin Andrew Shaw

Iain Peter Sharp

Mark Richard Ivison

Murray Frederic Freeman

Robert John Karschnia

Joseph Iii Citrano

Jeffrey D Potter

Joseph Citrano

Jeffery Dale Potter

A wireless mesh network provides secure communication by encrypting data using one or more encryption keys. A configuration device in communication with a security manager of the network provides a temporary secure communication path between the security manager and a new field device to be added to the mesh network. Cryptographic material and other configuration data can then be transferred between the security manager of the network and the new field device securely via the configuration device.

Wireless mesh network with secure automatic key loads to wireless devices

A wireless mesh network includes a plurality of wireless devices and a gateway organized in a multi hop mesh topology. Each wireless device maintains and reports radio statistics to the gateway, and also reports battery conditions of its power source. The device manager communicates with the gateway and provides an alert indicating existence of a pinch point within the mesh network based upon the radio statistics. When a low battery condition is reported by a device, the device manager determines whether loss of that device is a pinch point or will cause a pinch point, and provides a low battery alert prioritized based upon the pinch point analysis.

Wireless mesh network with pinch point and low battery alerts

A system for measuring and analyzing radio frequency power proximate and within a wireless field device mesh network. A centralized software module (CSWM) collects and analyzes values from one or more wireless devices of the wireless field device mesh network representing received RF power measurements on an assigned RF channel and values representing corresponding times of the received RF power measurements. Each wireless device measures received RF power on the assigned RF channel at times other than during reception of a signal resulting in transmission by the wireless device of either an acknowledgment signal or a non-acknowledgement signal. Values representing the received RF power measurements and the corresponding times of the received RF power measurements are determined from the stored received RF power measurements and corresponding times and then discarded. These values are stored within the wireless device until successfully reported. A network manager coordinates communication between the wireless devices and synchronizes the corresponding times of received RF power measurement throughout the wireless field device mesh network.

Wireless sensor network access point and device RF spectrum analysis system and method

Wireless devices are provisioned to join a wireless mesh network by writing an individual or common join key and network identification information to the wireless device, and creating an association of the wireless device with a gateway of the network by providing the gateway with a unique device identifier for the wireless device. The writing of the join key to the wireless device is achieved without revealing the join key to a user.

Join key provisioning of wireless devices

Growing community of inventors

Saint Paul, MN, United States of America

Daniel Clifford Carlson