JP4958617B2 - ガスメータにおける流量有無判定方法 - Google Patents
ガスメータにおける流量有無判定方法 Download PDFInfo
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- JP4958617B2 JP4958617B2 JP2007111716A JP2007111716A JP4958617B2 JP 4958617 B2 JP4958617 B2 JP 4958617B2 JP 2007111716 A JP2007111716 A JP 2007111716A JP 2007111716 A JP2007111716 A JP 2007111716A JP 4958617 B2 JP4958617 B2 JP 4958617B2
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- 238000000034 method Methods 0.000 title claims description 54
- 238000005070 sampling Methods 0.000 claims description 16
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 description 18
- 238000012545 processing Methods 0.000 description 8
- 238000013500 data storage Methods 0.000 description 6
- 238000004364 calculation method Methods 0.000 description 5
- 230000001186 cumulative effect Effects 0.000 description 5
- 238000001514 detection method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000010349 pulsation Effects 0.000 description 4
- 238000012935 Averaging Methods 0.000 description 2
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- 241000255777 Lepidoptera Species 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
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- 230000007774 longterm Effects 0.000 description 1
- 238000007619 statistical method Methods 0.000 description 1
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10a CPU
10b ROM
10c RAM
20 流量検出部
100 ガスメータ
Claims (2)
- 所定時間間隔の流量サンプリングにより瞬時流量を計測し、該計測された瞬時流量が予め設定された流量しきい値より大きい場合には流量有り判定処理を行い、該計測された瞬時流量が前記流量しきい値以下の場合には、該流量しきい値以下の状態が所定回数連続して発生したことで流量無しと確定する流量無し判定処理を行う、ガスメータにおける流量有無判定方法であって、
前記所定時間間隔のサンプリング時にガスの流量変動を監視し、
前記瞬時流量が流量しきい値以下で、かつ流量変動がある場合には前記流量無し判定処理を行うとともに、前記瞬時流量が流量しきい値以下で、かつ流量変動がない場合には前記流量無し判定処理を中止して流量無しと確定するようにしたことを特徴とするガスメータにおける流量有無判定方法。 - 前記所定時間間隔の流量サンプリングにより得られる瞬時流量の最大値と最小値との差分と、予め設定された変動量しきい値とを比較することにより、前記流量変動の有無を判断することを特徴とする請求項1に記載のガスメータにおける流量有無判定方法。
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JP2007111716A JP4958617B2 (ja) | 2007-04-20 | 2007-04-20 | ガスメータにおける流量有無判定方法 |
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JP2007111716A JP4958617B2 (ja) | 2007-04-20 | 2007-04-20 | ガスメータにおける流量有無判定方法 |
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JP2008267995A JP2008267995A (ja) | 2008-11-06 |
JP4958617B2 true JP4958617B2 (ja) | 2012-06-20 |
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JP2007111716A Active JP4958617B2 (ja) | 2007-04-20 | 2007-04-20 | ガスメータにおける流量有無判定方法 |
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Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
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CN102305646A (zh) * | 2011-05-10 | 2012-01-04 | 安徽润尔兴仪表有限公司 | 智能防泄漏电磁流量计 |
JP5662493B2 (ja) * | 2013-01-25 | 2015-01-28 | 東京瓦斯株式会社 | ガス遮断装置とそれによる流量変化判定方法、およびガス遮断装置用の制御器 |
JP6325884B2 (ja) * | 2014-05-09 | 2018-05-16 | パナソニック株式会社 | ガス遮断装置 |
JP6355416B2 (ja) * | 2014-05-09 | 2018-07-11 | パナソニック株式会社 | ガス遮断装置 |
CN108414164A (zh) * | 2018-03-20 | 2018-08-17 | 玉环县红日阀门有限公司 | 通过流量差进行判断的漏水监控系统及控制方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JP3339407B2 (ja) * | 1998-03-31 | 2002-10-28 | 矢崎総業株式会社 | 流量測定方法、流量測定装置、並びに、電子式ガスメータ |
JP4082246B2 (ja) * | 2003-03-12 | 2008-04-30 | 松下電器産業株式会社 | 流量計 |
JP2005308468A (ja) * | 2004-04-20 | 2005-11-04 | Yazaki Corp | 復帰安全確認方法および電子式ガスメータ |
JP2006098096A (ja) * | 2004-09-28 | 2006-04-13 | Matsushita Electric Ind Co Ltd | 流量計測装置 |
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