Fluid meter device
US-9664549-B2 · May 30, 2017 · US
Flow rate measurement device
US10323966B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10323966-B2 |
| Application number | US-201615537266-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 15, 2016 |
| Priority date | Dec 24, 2015 |
| Publication date | Jun 18, 2019 |
| Grant date | Jun 18, 2019 |
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- Title
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Abstract
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A gas meter that is a flow rate measurement device includes a flow rate measurement unit for measuring, at a constant time interval, a flow rate of gas flowing in a passage, a pressure measurement unit for measuring pressure of the gas in the passage, a power supply unit for supplying power to a pressure measurement unit, and an appliance determination unit for determining an appliance being used based on a gas flow rate value. The gas meter further includes a measurement interval controller for determining a gas non-use state, an appliance determination performing state, or an appliance determination non-performing state based on the gas flow rate value and operation information of the appliance determination unit, for controlling the power supply unit in accordance with the determined state, and for changing an interval for turning on/off power supplied to the pressure measurement unit.
First claim
Opening claim text (preview).
What is claimed is: 1. A flow rate measurement device comprising: a flow rate measurement unit for measuring, at a constant time interval, a flow rate of gas flowing in a passage; a pressure measurement unit for measuring pressure of the gas in the passage; a power supply unit for supplying power to the pressure measurement unit; an appliance determination unit for determining an appliance being used based on a gas flow rate value; and a measurement interval controller for determining a gas non-use state, an appliance determination performing state, or an appliance determination non-performing state based on the gas flow rate value and operation information of the appliance determination unit, for controlling the power supply unit in accordance with the determined state, and for changing an interval for turning on/off power supplied to the pressure measurement unit. 2. The flow rate measurement device according to claim 1 , wherein, when a current state is determined as the appliance determination performing state, the measurement interval controller sets an interval for turning on/off power supplied to the pressure measurement unit shorter than an interval when a current state is determined as the appliance determination non-performing state or the gas non-use state. 3. The flow rate measurement device according to claim 1 , wherein, when a current state is determined as the appliance determination non-performing state, the measurement interval controller sets an interval for turning on/off power supplied to the pressure measurement unit longer than an interval when a current state is determined as the appliance determination performing state, but shorter than an interval when a current state is determined as the gas non-use state. 4. The flow rate measurement device according to claim 1 , wherein, when a current state is determined as the gas non-use state, the measurement interval controller sets an interval for turning on/off power supplied to the pressure measurement unit longer than an interval when a current state is determined as the appliance determination performing state or the appliance determination non-performing state. 5. The flow rate measurement device according to claim 1 , further comprising a flow rate corrector for correcting the gas flow rate value measured by the flow rate measurement unit, based on the gas pressure value measured by the pressure measurement unit, wherein the appliance determination unit determines an appliance being used based on the gas flow rate value output from the flow rate corrector. 6. The flow rate measurement device according to claim 1 , further comprising a flow rate corrector for correcting the gas flow rate value measured by the flow rate measurement unit, based on the gas pressure value measured by the pressure measurement unit, wherein the measurement interval controller determines the gas non-use state, the appliance determination performing state, or the appliance determination non-performing state based on the gas flow rate value output from the flow rate corrector and the operation information of the appliance determination unit.
Assignees
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Classifications
Household apparatus · CPC title
pressure · CPC title
Gaseous fuels · CPC title
using detectors sensitive to rate of flow of fuel · CPC title
of gases to be measured · CPC title
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- What does patent US10323966B2 cover?
- A gas meter that is a flow rate measurement device includes a flow rate measurement unit for measuring, at a constant time interval, a flow rate of gas flowing in a passage, a pressure measurement unit for measuring pressure of the gas in the passage, a power supply unit for supplying power to a pressure measurement unit, and an appliance determination unit for determining an appliance being us…
- Who is the assignee on this patent?
- Panasonic Ip Man Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification G01F1/667. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Jun 18 2019 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).