US 11,940,400 B1
Gas sensor systems and methods of using same
Michael A. Bryan, Spring, TX (US); Robert Bodnar, Edmond, OK (US); and James Yu, Sugarland, TX (US)
Assigned to Gas Activated Systems, The Woodlands, TX (US)
Filed by Gas Activated Systems, The Woodlands, TX (US)
Filed on May 14, 2020, as Appl. No. 16/874,425.
Claims priority of provisional application 62/848,454, filed on May 15, 2019.
Int. Cl. G01N 33/00 (2006.01); G01N 9/00 (2006.01); G01N 25/18 (2006.01)
CPC G01N 25/18 (2013.01) [G01N 9/00 (2013.01); G01N 33/0006 (2013.01); G01N 33/0036 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for detecting a parameter of at least one gas comprising:
receiving the at least one gas at a gas sensor included in a first device;
measuring a density of the at least one gas;
at least one of a) heating and b) cooling the at least one gas with a first thermal input; determining a first rate at which the at least one gas changes temperature when at least one of heating and b) cooling the at least one gas;
comparing at least one of the density and the first rate to a reference database of gases; determining at least one of a) a category b) a lower explosive limit and c) a concentration of the at least one gas; and
generating at least one output signal reflective of at least one of a) a category b) a lower explosive limit and c) a concentration of the at least one gas;
receiving the least one output signal from the gas sensor and another output signal from at least one other gas sensor, the other gas sensor being included in a second device that is physically separate from the first device, the gas sensor being on one side of a safety barrier and the at least one other gas sensor being placed on the another side of the safety barrier, the safety barrier being at least one of a fire or explosion barrier;
aggregating the least one output signal and the another output signal by a gateway using a low-power, wide area protocol; and
transmitting the least one output signal an the another output signal to a cloud.