JPS6425026A - Detecting apparatus of leakage of water - Google Patents
Detecting apparatus of leakage of waterInfo
- Publication number
- JPS6425026A JPS6425026A JP62180940A JP18094087A JPS6425026A JP S6425026 A JPS6425026 A JP S6425026A JP 62180940 A JP62180940 A JP 62180940A JP 18094087 A JP18094087 A JP 18094087A JP S6425026 A JPS6425026 A JP S6425026A
- Authority
- JP
- Japan
- Prior art keywords
- leakage
- water
- signal
- integration value
- level
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances data:image/svg+xml;base64,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 data:image/svg+xml;base64,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 O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract 8
- 230000003321 amplification Effects 0.000 abstract 1
- 238000005259 measurement Methods 0.000 abstract 1
- 238000003199 nucleic acid amplification method Methods 0.000 abstract 1
- 238000007493 shaping process Methods 0.000 abstract 1
Abstract
PURPOSE:To enable the estimation of a distance to a position of leakage of water separately from the scale of the leakage, by determining the means frequency of vibrations at a point of measurement and by making it possible to estimate the distance to a signal source therefrom. CONSTITUTION:A sound of leakage of water and noise, or vibrations due to the leakage of water and the noise, which are detected by a sensor 1, are converted into electric signals and inputted to a wave-shaping means 2. In the means 2, the amplification of the electric signals from the sensor 1 and the discrimination thereof based on crest values are conducted, and a signal having a significance as a water leakage signal is wave-shaped to be at a high level and a signal not having this significance to be at a low level, for instance. A signal continuation time integrating means 3 integrates a time wherein an input signal is at the high level, and outputs a time integration value T. A water leakage determining means 5 stores the time integration value in the state wherein no leakage of water is present, and outputs a signal of determination that the leakage of water is present, only when the time integration value T is larger than the determination reference values set respectively. A mean frequency detecting means 4 determines the mean value of signal frequencies for the whole period during which the means 3 operates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62180940A JPH0772705B2 (en) | 1987-07-22 | 1987-07-22 | Leakage and leak position detector |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62180940A JPH0772705B2 (en) | 1987-07-22 | 1987-07-22 | Leakage and leak position detector |
| DE8888111705T DE3871006D1 (en) | 1987-07-22 | 1988-07-20 | APPARATUS FOR DETECTING THE PRESENCE OR PRESENCE OF WATER LEAK ON WATER PIPELINES. |
| EP88111705A EP0300460B1 (en) | 1987-07-22 | 1988-07-20 | Apparatus for detecting presence/absence of water leakage from water pipe |
| KR8809193A KR920002018B1 (en) | 1987-07-22 | 1988-07-22 | Water-leakage detecting apparatus and method which are little influenced by noise |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6425026A true JPS6425026A (en) | 1989-01-27 |
| JPH0772705B2 JPH0772705B2 (en) | 1995-08-02 |
Family
ID=16091937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62180940A Expired - Lifetime JPH0772705B2 (en) | 1987-07-22 | 1987-07-22 | Leakage and leak position detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0772705B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5438000A (en) * | 1992-11-12 | 1995-08-01 | Nippon Paint Co., Ltd. | Serum separation sealant |
| US6404343B1 (en) | 1999-06-25 | 2002-06-11 | Act Lsi Inc. | Water leakage monitoring apparatus |
| GB2406654A (en) * | 2003-08-26 | 2005-04-06 | Metrika Ltd | Method and apparatus for determining the sizes of leaks in water distribution networks |
| JP2013137370A (en) * | 2011-12-28 | 2013-07-11 | Jfe Steel Corp | Method for reducing low frequency sound generated from machines |
| CN109738138A (en) * | 2019-01-31 | 2019-05-10 | 河北工程大学 | A kind of method and system using traveling wave positioning HDPE film leak location |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60209117A (en) * | 1984-03-31 | 1985-10-21 | Toshiba Corp | Water meter with leak water detector |
-
1987
- 1987-07-22 JP JP62180940A patent/JPH0772705B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60209117A (en) * | 1984-03-31 | 1985-10-21 | Toshiba Corp | Water meter with leak water detector |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5438000A (en) * | 1992-11-12 | 1995-08-01 | Nippon Paint Co., Ltd. | Serum separation sealant |
| US6404343B1 (en) | 1999-06-25 | 2002-06-11 | Act Lsi Inc. | Water leakage monitoring apparatus |
| GB2406654A (en) * | 2003-08-26 | 2005-04-06 | Metrika Ltd | Method and apparatus for determining the sizes of leaks in water distribution networks |
| GB2406654B (en) * | 2003-08-26 | 2005-09-28 | Metrika Ltd | Determining the sizes of leaks in water distribution networks |
| JP2013137370A (en) * | 2011-12-28 | 2013-07-11 | Jfe Steel Corp | Method for reducing low frequency sound generated from machines |
| CN109738138A (en) * | 2019-01-31 | 2019-05-10 | 河北工程大学 | A kind of method and system using traveling wave positioning HDPE film leak location |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0772705B2 (en) | 1995-08-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |