ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,422,829, issued on Sept. 23, was assigned to CHENGDU QINCHUAN IOT TECHNOLOGY Co. LTD. (Chengdu, China).
"System and method for linkage alarm between gas alarm and gas meter" was invented by Zehua Shao (Chengdu, China), Junyan Zhou (Chengdu, China), Hong Li (Chengdu, China), Lei Zhang (Chengdu, China) and Xiaojun Wei (Chengdu, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for linkage alarm between a gas alarm and a gas meter is provided. The method comprises: obtaining a detection signal through electrical connection with the alarm; in response to the detection signal meeting a preset alarm condition, determining a target alarm event cor...