[특허]Detecting leaks in a fluid distribution system

Mueller International, LLC

검색어에 아래의 연산자를 사용하시면 더 정확한 검색결과를 얻을 수 있습니다.
검색연산자

검색도움말
검색연산자	기능	검색시 예
()	우선순위가 가장 높은 연산자	예1) (나노 (기계 \| machine))
공백	두 개의 검색어(식)을 모두 포함하고 있는 문서 검색	예1) (나노 기계) 예2) 나노 장영실
\|	두 개의 검색어(식) 중 하나 이상 포함하고 있는 문서 검색	예1) (줄기세포 \| 면역) 예2) 줄기세포 \| 장영실
!	NOT 이후에 있는 검색어가 포함된 문서는 제외	예1) (황금 !백금) 예2) !image
*	검색어의 *란에 0개 이상의 임의의 문자가 포함된 문서 검색	예) semi*
""	따옴표 내의 구문과 완전히 일치하는 문서만 검색	예) "Transform and Quantization"

과학기술 지식인프라 ScienceON

연합인증

연합인증 가입 기관의 연구자들은 소속기관의 인증정보(ID와 암호)를 이용해 다른 대학, 연구기관, 서비스 공급자의 다양한 온라인 자원과 연구 데이터를 이용할 수 있습니다.

이는 여행자가 자국에서 발행 받은 여권으로 세계 각국을 자유롭게 여행할 수 있는 것과 같습니다.

연합인증으로 이용이 가능한 서비스는 NTIS, DataON, Edison 등이 있습니다.

한번의 인증절차만으로 연합인증 가입 서비스에 추가 로그인 없이 이용이 가능합니다.

다만, 연합인증을 위해서는 최초 1회만 인증 절차가 필요합니다. (회원이 아닐 경우 회원 가입이 필요합니다.)

연합인증 절차는 다음과 같습니다.

최초이용시에는
ScienceON에 로그인 → 연합인증 서비스 접속 → 로그인 (본인 확인 또는 회원가입) → 서비스 이용

그 이후에는
ScienceON 로그인 → 연합인증 서비스 접속 → 서비스 이용

연합인증을 활용하시면 KISTI가 제공하는 다양한 서비스를 편리하게 이용하실 수 있습니다.

특허 상세정보

MyON담기

내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Detecting leaks in a fluid distribution system

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G01F-023/00 G01M-003/24
출원번호	US-0063334 (2013-10-25)
등록번호	US-9939344 (2018-04-10)
발명자 / 주소	Bracken, Marc Yusuf, Shabbir
출원인 / 주소	Mueller International, LLC
대리인 / 주소	Taylor English Duma LLP
인용정보	피인용 횟수 : 1 인용 특허 : 199

초록

Technologies for detecting leaks in a fluid distribution system are described herein. Historical leak detection information is received from a sensor in the fluid distribution system and collected in a database. A baseline is determined from the historical leak information. Current leak detection information is then received from the sensor and the probability of a leak in the fluid distribution system is determined based on a difference between the current leak detection information and the baseline.

대표
청구항
▼

1. A processor-implemented method comprising the steps of: receiving, at a processor, current leak detection information comprising an acoustic waveform in a time domain from a first sensor in a fluid distribution system;calculating, by the processor, threshold levels from a normal baseline waveform, the normal baseline waveform determined from historical acoustic data received from the first sensor;detecting, by the processor, a transient in a portion of the acoustic waveform by determining that an amplitude of the acoustic waveform exceeds the threshold levels;upon detecting the transient, completely removing all of the data in the portion of the acoustic waveform from the current leak detection information leaving a gap in the acoustic waveform with a first end and a second end; andsplicing, by the processor, the first and the second end of the gap in the waveform together,wherein the current leak detection information with the transient removed is utilized by the processor to determine a probability of a leak in the fluid distribution system based on a correlation between the current leak detection information and the normal baseline waveform. 2. The method of claim 1, wherein the current leak detection information comprises time stamp information. 3. The method of claim 1, wherein the current leak detection information is received from a first node in a mesh network communicatively connected to the processor through one or more intermediate nodes. 4. The method of claim 1, wherein the first sensor comprises one from the group consisting of a piezoelectric sensor, an acoustic transducer, a hydrophone, a pressure sensor, and an accelerometer. 5. The method of claim 1, further comprising the step of providing an alarm to an operator system based on the probability of the leak. 6. The method of claim 1, further comprising the step of: detecting, by the processor, a discontinuity in the acoustic waveform at a position of the removed portion of the acoustic waveform; andupon detecting the discontinuity, performing, by the processor, a wave smoothing operation of the acoustic waveform to smooth the discontinuity in the acoustic waveform. 7. The method of claim 1, wherein the threshold levels comprise a percentage of an amplitude of the normal baseline waveform. 8. A system for detecting a leak in a fluid distribution system, the system comprising: a plurality of leak detectors in the fluid distribution system, each leak detector comprising one or more sensors, a processing device, and a communication device, the processing device configured to receive signal data from the one or more sensors,process the signal data, andsend the processed signal data via the communication device to a host, the processed signal data comprising an acoustic waveform in a time domain; andthe host comprising a processor, a database, and a communication module, the processor configured to receive via the communication module a plurality of processed signal data from the plurality of leak detectors,calculate threshold levels from a normal baseline waveform, the normal baseline waveform determined from historical acoustic data received from the plurality of leak detectors,detect a transient in a portion of an acoustic waveform from a first leak detector of the plurality of leak detectors by determining an amplitude of the acoustic waveform exceeds the threshold levels, wherein the portion of the acoustic waveform from the first leak detector is a specific time section,upon detecting the transient in the portion of the acoustic waveform, completely remove all of the data in the portion of the acoustic waveform for the specific time section from the processed signal data for each leak detector from the plurality of leak detectors leaving a gap in the acoustic waveform with a first end and a second end,splice the first and the second end of the gap in the acoustic waveform together, anddetermine from the processed signal data with the transient removed that a leak has occurred in the fluid distribution system based on a correlation between the processed signal data and the normal baseline waveform. 9. The system of claim 8, wherein the processing device is configured to send the processed signal data to the host on a periodic basis. 10. The system of claim 8, wherein the processing device is configured to send the processed signal data to the host in response to receiving a request from the host. 11. The system of claim 8, wherein the processing device is configured to, upon receiving signal data from a first sensor of the one or more sensors indicative of a leak in the fluid distribution system, activate a second sensor of the one or more sensors to collect additional signal data to be sent to the host. 12. The system of claim 11, wherein the second sensor is configured to collect data regarding one or more of a size of the leak and a location of the leak. 13. The system of claim 8, wherein the leak detector comprises an acoustic sensor, a pressure sensor, and a temperature sensor, wherein each of the sensors may be activated by the processing device independently. 14. The system of claim 8, wherein processing the signal data comprises time stamping the signal data. 15. The system of claim 14, where the processing device is further configured to exchange timing information with other of the plurality of leak detectors to synchronize time stamping of signal data between the plurality of leak detectors. 16. The system of claim 8, wherein the processor is further configured to: detect a discontinuity in the acoustic waveform at a position of the removed portion of the acoustic waveform; andupon detecting the discontinuity, perform a wave smoothing operation of the acoustic waveform to smooth the discontinuity in the acoustic waveform. 17. An apparatus comprising: one or more sensors;a communication device; anda processing device operatively coupled to the one or more sensors and the communication device and configured to receive an acoustic waveform in a time domain from the one or more sensors,determine whether an amplitude of the acoustic waveform exceeds a predetermined threshold, the predetermined threshold calculated from a normal baseline waveform determined from historical acoustic data received from the one or more sensors,upon determining that the predetermined threshold has been exceeded, completely remove all of the data in a section of the acoustic waveform where the amplitude exceeds the predetermined threshold leaving a gap in the acoustic waveform with a first end and a second end,splice the first and the second end of the gap in the acoustic waveform together, andupon splicing the acoustic waveform together, transmit data regarding the acoustic waveform without the removed section to a host via the communication device, the host configured to detect a leak in a fluid distribution system based on a correlation between the acoustic waveform and the normal baseline waveform. 18. The apparatus of claim 17, wherein the processing device is further configured to: detect a discontinuity in the acoustic waveform at a position of the removed section of the acoustic waveform; andupon detecting the discontinuity, perform a wave smoothing operation of the acoustic waveform over the removed section to smooth the discontinuity in the acoustic waveform. 19. The apparatus of claim 17, wherein the apparatus is coupled to a distribution main of the fluid distribution system. 20. The apparatus of claim 17, wherein the fluid distribution system comprises a water distribution system and the apparatus is coupled to a hydrant of the water distribution system.

이 특허에 인용된 특허 (199)

이 특허를 인용한 특허 (1)

Oh, Kwang Suhk, Water meter and water supply management system using same.

IPC 상위 출원인

내보내기

상세정보
내보내기 구분	파일저장 인쇄 메일전송
구성항목	관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 공고번호, 공고일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표출원인, 출원인국적, 출원인주소, 발명자, 발명자E, 발명자코드, 발명자주소, 발명자 우편번호, 발명자국적, 대표IPC, IPC코드, 요약, 미국특허분류, 대리인주소, 대리인코드, 대리인(한글), 대리인(영문), 국제공개일자, 국제공개번호, 국제출원일자, 국제출원번호, 우선권, 우선권주장일, 우선권국가, 우선권출원번호, 원출원일자, 원출원번호, 지정국, Citing Patents, Cited Patents
저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	> 총 건의 자료가 검색되었습니다. > 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) > 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. > 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) > 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오 > ~ > Text(ASCII format) Excel format

과학기술 지식인프라 ScienceON

ScienceON Chatbot

연합인증

특허 상세정보

Detecting leaks in a fluid distribution system

초록

대표
청구항
▼

이 특허에 인용된 특허 (199)

이 특허를 인용한 특허 (1)

IPC 상위 출원인

과제정보

상세정보조회

원문조회

IPC 상세정보(version : 201201)

연구과제 성과물(0)

참여연구원의 다른 문헌(0)

처리중입니다.

잠시만 기다려주세요.

ScienceON Chatbot

연합인증

특허 상세정보

Detecting leaks in a fluid distribution system

초록

대표청구항 ▼

이 특허에 인용된 특허 (199)

이 특허를 인용한 특허 (1)

IPC 상위 출원인

과제정보

상세정보조회

원문조회

IPC 상세정보(version : 201201)

연구과제 성과물(0)

참여연구원의 다른 문헌(0)

처리중입니다.

잠시만 기다려주세요.

대표
청구항
▼