KR100660158B1 - 주파수 분석에 의한 타공사 감시 방법 - Google Patents
주파수 분석에 의한 타공사 감시 방법 Download PDFInfo
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- KR100660158B1 KR100660158B1 KR1020050129957A KR20050129957A KR100660158B1 KR 100660158 B1 KR100660158 B1 KR 100660158B1 KR 1020050129957 A KR1020050129957 A KR 1020050129957A KR 20050129957 A KR20050129957 A KR 20050129957A KR 100660158 B1 KR100660158 B1 KR 100660158B1
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- 238000000034 method Methods 0.000 title claims abstract description 37
- 238000012544 monitoring process Methods 0.000 title claims abstract description 23
- 238000001514 detection method Methods 0.000 claims abstract description 22
- 230000001133 acceleration Effects 0.000 claims abstract description 17
- 238000001914 filtration Methods 0.000 claims abstract description 8
- 230000002159 abnormal effect Effects 0.000 claims abstract description 6
- 238000004458 analytical method Methods 0.000 abstract description 15
- 238000010276 construction Methods 0.000 abstract description 14
- 239000007789 gas Substances 0.000 description 19
- 230000035939 shock Effects 0.000 description 12
- 238000012545 processing Methods 0.000 description 9
- 238000007405 data analysis Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 230000003321 amplification Effects 0.000 description 2
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- 238000002474 experimental method Methods 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
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- 239000002689 soil Substances 0.000 description 1
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/182—Level alarms, e.g. alarms responsive to variables exceeding a threshold
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B3/00—Rotary drilling
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P1/00—Details of instruments
- G01P1/06—Indicating or recording devices, e.g. for remote indication
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
- G06Q50/10—Services
- G06Q50/26—Government or public services
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/0202—Child monitoring systems using a transmitter-receiver system carried by the parent and the child
- G08B21/0269—System arrangements wherein the object is to detect the exact location of child or item using a navigation satellite system, e.g. GPS
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/08—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using communication transmission lines
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/10—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
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- Emergency Management (AREA)
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- Child & Adolescent Psychology (AREA)
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- Development Economics (AREA)
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- Fluid Mechanics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mechanical Engineering (AREA)
- Radar, Positioning & Navigation (AREA)
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- Geochemistry & Mineralogy (AREA)
- Environmental & Geological Engineering (AREA)
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- General Business, Economics & Management (AREA)
- Theoretical Computer Science (AREA)
- Emergency Alarm Devices (AREA)
Abstract
Description
Claims (1)
- (a) 가스배관에 접촉하여 설치된 가속도센서로부터 감지신호가 입력된 경우에 소정의 주파수 성분만을 통과시키는 로우패스 필터링을 수행하는 단계;(b) 상기 단계(a)에서 필터링된 감지신호의 S/N비(신호 대 잡음비)가 미리 정해진 제 1 기준치 이상인지를 판단하는 단계;(c) 상기 단계 (b)에서의 판단 결과, 상기 필터링된 감지신호의 신호 대 잡음비가 상기 제 1 기준치에 미달하는 경우에는 이를 무시하고, 이상인 경우에는 상기 필터링된 감지신호를 FFT 처리하여 미리 정해진 주파수 대역별로 그 S/N비를 계산하는 단계;(d) 상기 단계 (c)에서 계산된 S/N비 중에서 미리 정해진 주파수 대역의 S/N비가 미리 정해진 제 2 기준치 이상인지를 판단하는 단계; 및(e) 상기 단계 (d)에서 상기 주파수 대역의 S/N비가 상기 제2 기준에 미달하는 경우에는 이를 무시하고, 이상인 경우에는 충격이 발생했다고 간주하여 경보를 수행하는 단계를 포함하여 이루어진 주파수 분석에 의한 타공사 감시 방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020050129957A KR100660158B1 (ko) | 2005-12-26 | 2005-12-26 | 주파수 분석에 의한 타공사 감시 방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020050129957A KR100660158B1 (ko) | 2005-12-26 | 2005-12-26 | 주파수 분석에 의한 타공사 감시 방법 |
Publications (2)
Publication Number | Publication Date |
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KR20060003845A KR20060003845A (ko) | 2006-01-11 |
KR100660158B1 true KR100660158B1 (ko) | 2006-12-20 |
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KR1020050129957A KR100660158B1 (ko) | 2005-12-26 | 2005-12-26 | 주파수 분석에 의한 타공사 감시 방법 |
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Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101039324B1 (ko) * | 2008-03-18 | 2011-06-08 | 한국유지관리 주식회사 | 압전 센서를 이용한 송유관 감시 시스템 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR19980081894A (ko) * | 1998-07-03 | 1998-11-25 | 기옥연 | 배관의 상태를 감지하는 방법 및 이를 수행하기 위한 장치 |
US6614354B2 (en) | 2001-03-02 | 2003-09-02 | Gas Research Institute | In-ground pipeline monitoring |
KR100402685B1 (ko) * | 2001-04-25 | 2003-10-22 | 한국가스공사연구개발원 | 타공사에 의한 매설배관의 실시간 손상감지 모니터링시스템 및 가스배관의 충격위치 산출방법 |
US6785618B2 (en) | 2001-03-02 | 2004-08-31 | Gas Research Institute | In-ground pipeline monitoring |
-
2005
- 2005-12-26 KR KR1020050129957A patent/KR100660158B1/ko active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR19980081894A (ko) * | 1998-07-03 | 1998-11-25 | 기옥연 | 배관의 상태를 감지하는 방법 및 이를 수행하기 위한 장치 |
US6614354B2 (en) | 2001-03-02 | 2003-09-02 | Gas Research Institute | In-ground pipeline monitoring |
US6785618B2 (en) | 2001-03-02 | 2004-08-31 | Gas Research Institute | In-ground pipeline monitoring |
KR100402685B1 (ko) * | 2001-04-25 | 2003-10-22 | 한국가스공사연구개발원 | 타공사에 의한 매설배관의 실시간 손상감지 모니터링시스템 및 가스배관의 충격위치 산출방법 |
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Publication number | Publication date |
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KR20060003845A (ko) | 2006-01-11 |
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