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1. (WO2018058074) EFFICIENT BATTERY-POWERED METER

Pub. No.:    WO/2018/058074    International Application No.:    PCT/US2017/053332
Publication Date: Fri Mar 30 01:59:59 CEST 2018 International Filing Date: Tue Sep 26 01:59:59 CEST 2017
IPC: G01F 15/06
G01F 15/04
G01D 4/00
G01F 1/66
G01F 15/075
Applicants: ITRON, INC.
Inventors: ILIEV, George
RIGDON, Kenneth, Charles
DE JAGER, Johann
Title: EFFICIENT BATTERY-POWERED METER
Abstract:
Techniques for the design and operation of an efficient battery-powered meter are described herein. A metrology unit of the meter may be at least partially located in the gas flow of a pipe, and measures gas flow rate data according to a static flow sensor. The metrology unit calculates raw gas-volume data using at least the flow rate data as input. The metrology unit measures gas temperature to produce gas temperature data, and adjusts the raw gas-volume data, based at least in part on the gas temperature data, to produce corrected gas-volume data. The metrology unit accumulates the corrected gas-volume data over multiple minutes, hours or even days, and then sends the accumulated corrected gas-volume data to an index unit of the meter. By accumulating the data over time, fewer data transmissions are required. The index unit may send the accumulated the accumulated corrected gas-volume data to a utility server.