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:
Sep. 11, 2018
Filed:
Jun. 13, 2012
Applicants:
Niels Aakvaag, Oslo, NO;
Knut Sandven, Oslo, NO;
Inventors:
Niels Aakvaag, Oslo, NO;
Knut Sandven, Oslo, NO;
Assignee:
GasSecure AS, Oslo, NO;
Primary Examiner:
Int. Cl.
CPC ...
G08B 21/00 (2006.01); H04W 52/02 (2009.01); H04W 4/38 (2018.01); H04W 4/70 (2018.01); H04W 84/18 (2009.01);
U.S. Cl.
CPC ...
H04W 52/0209 (2013.01); H04W 4/38 (2018.02); H04W 4/70 (2018.02); H04W 84/18 (2013.01);
Abstract
A wireless sensor network comprises at least one sensor unit which comprises a sensor for sensing a parameter and at least one interrogating node. The interrogating node is arranged to transmit an interrogation message periodically to said sensor unit and to receive a reply message from said sensor unit. The sensor unit is arranged to transmit said reply message after a predetermined deliberate delay unless the sensor unit determines that an alarm condition has been met, in which case the sensor unit is arranged to transmit said reply message before the end of the deliberate delay.