Sensing events affecting liquid flow in a liquid distribution system
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United States of America Patent
Stats
-
Apr 10, 2018
Issued Date -
N/A
app pub date -
Jan 29, 2016
filing date -
Jun 11, 2009
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
By monitoring pressure transients in a liquid within a liquid distribution system using only a single sensor, events such as the opening and closing of valves at specific fixtures are readily detected. The sensor, which can readily be coupled to a faucet bib, transmits an output signal to a computing device. Each such event can be identified by the device based by comparing characteristic features of the pressure transient waveform with previously observed characteristic features for events in the system. These characteristic features, which can include the varying pressure, derivative, and real Cepstrum of the pressure transient waveform, can be used to select a specific fixture where a valve open or close event has occurred. Flow to each fixture and leaks in the system can also be determined from the pressure transient signal. A second sensor disposed at a point disparate from the first sensor provides further event information.
First Claim
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Family
International Classification(s)
- 2016 Application Filing Year
- G01M Class
- 1447 Applications Filed
- 1062 Patents Issued To-Date
- 73.40 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 15 Citation Count
- G01M Class
- 92.74 % this patent is cited more than
- 7 Age
Maintenance Fees
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|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Oct 10, 2025 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Oct 10, 2029 |
