Patent ID: 7809514
Filing Date: 2010-10-05
Classification: G01F

Abstract:
1. A flow rate measurement device for measuring a volume of gas flowing through a gas supply system in which at least one appliance is connected, comprising: a flow rate sensor configured to detect at regular intervals a gas flow flowing through the gas supply system; a computing unit configured to differentiate the detected gas flow; a memory in which profiles of gas consumption by the at least one appliance are storable in relation to identities of the at least one appliance; and a judging unit configured to search for a profile among the stored profiles which corresponds to the differentiated gas flow to thereby determine an identity of the at least one appliance, wherein the judging unit comprises an interval controller configured to repeatedly adjust the intervals at which the flow rate sensor detects a gas flow every time a run of search by the judging unit over the stored profiles fails, until the judging unit finds a profile which corresponds to the differentiated gas flow.