The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 19, 2014
Filed:
Nov. 06, 2009
Mark Nixon, Round Rock, TX (US);
Robert Karschnia, Chaska, MN (US);
Eric Rotvold, West St. Paul, MN (US);
Trevor Duncan Schleiss, Austin, TX (US);
Deji Chen, Round Rock, TX (US);
Mark Nixon, Round Rock, TX (US);
Robert Karschnia, Chaska, MN (US);
Eric Rotvold, West St. Paul, MN (US);
Trevor Duncan Schleiss, Austin, TX (US);
Deji Chen, Round Rock, TX (US);
Rosemount Inc., Bloomington, MN (US);
Abstract
A first node sends a first message to a second node. The second node sends a second message to the first node. A first elapsed time is measured from the beginning of the transmission of the first message to the beginning of receipt of the second message. A second elapsed time is measured from the beginning of the receipt of the first message to the beginning of the transmission of the second message. The second node sends a third message to the first node containing the second elapsed time. The distance between the first and second node is calculated based on these elapsed times and a calibration count multiplier contained in the second or third message. A node may be moved within a wireless mesh network. Positional information about the node and distances to its neighbors is determined and transmitted to the network manager where it is stored.