Armstrong International, Inc.

Inovonics Corporation

Inovonics Wireless Corporation

Donald J Hume

Steven Dunbar

Preston Pierce

Nathan Koonce

Neal Shurmantine

Steve Koonce

Michael P Hellman

Daryl Burkhard

James F Washburn

Andrew F Drenick

Anthony Sajkowski

Daryl Burkhart

A wireless communications network which provides directed transmissions between components of the network is provided. The components within the wireless communications include a master apparatus, a plurality of remote devices, and a plurality of repeaters. The components within the wireless communications network communicate using messages which have a control field and at least one information field. Information within the control field is used by components to make determinations for retransmitting the message, or transmitting a predefined response to the message, such as a signal strength response. The components within the network use the messages to make a determination of a communications target, which may be used as a primary contact for transmitting information, automatically, and may repeat the determination at predetermined intervals. Thus, the wireless communications network is able to adapt over time to additional components added into the network, or changing environmental conditions in and around the network.

Message control protocol in a communications network having repeaters

A method of monitoring the status of a plurality of steam traps includes sensing with a monitor at least one process condition in each of a plurality of steam traps, transmitting radio frequency signals responsive to the sensed process condition of each steam trap with transmitters associated with the steam traps, and receiving the signals generated by the transmitters with a receiver. In one embodiment of the invention, the signals from at least some steam traps are received and retransmitted by a repeater positioned between the steam traps and the receiver.

Monitoring steam traps using RF signaling

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Boulder, CO, United States of America

Donald J Hume