ES2109315T3 - Detector de vehiculos con compensacion del ruido de la energia principal. - Google Patents
Detector de vehiculos con compensacion del ruido de la energia principal.Info
- Publication number
- ES2109315T3 ES2109315T3 ES92305448T ES92305448T ES2109315T3 ES 2109315 T3 ES2109315 T3 ES 2109315T3 ES 92305448 T ES92305448 T ES 92305448T ES 92305448 T ES92305448 T ES 92305448T ES 2109315 T3 ES2109315 T3 ES 2109315T3
- Authority
- ES
- Spain
- Prior art keywords
- frequency
- signal
- phase
- oscillator
- measured
- 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.)
- Expired - Lifetime
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/042—Detecting movement of traffic to be counted or controlled using inductive or magnetic detectors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Train Traffic Observation, Control, And Security (AREA)
- Geophysics And Detection Of Objects (AREA)
- Traffic Control Systems (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
UN DETECTOR DE VEHICULOS INCLUYE UN SENSOR INDUCTIVO (12) ACCIONADO POR UN OSCILADOR (16) PARA PRODUCIR UNA SEÑAL DEL OSCILADOR QUE TIENE UNA FRECUENCIA QUE ES UNA FUNCION DE LA INDUCTANCIA DEL SENSOR INDUCTIVO. LA PRESENCIA DE UN VEHICULO SE DETECTA CUANDO LA FRECUENCIA MEDIDA DE LA SEÑAL DEL OSCILADOR CAMBIA MAS QUE UN VALOR UMBRAL. SE COMPENSAN LOS EFECTOS DEL FLUJO MAGNETICO PRODUCIDO POR LINEAS DE ALIMENTACION ADYACENTES MEDIANTE MEDIOS (20, 34, 36 Y 38) PARA MEDIR LA FRECUENCIA DE LA SEÑAL DEL OSCILADOR DURANTE UNA PLURALIDAD DE PERIODOS DE MUESTRA Y PARA CARACTERIZAR LAS FLUCTUACIONES DE LA FRECUENCIA MEDIDA COMO FUNCION DE FASE DE UNA SEÑAL PRINCIPAL DE ALIMENTACION. DURANTE UN PERIODO DE MEDICION NORMAL, SE MIDE LA FRECUENCIA DE LA SEÑAL DEL OSCILADOR Y SE DETERMINA LA FASE DE LA SEÑAL PRINCIPAL DE ALIMENTACION DURANTE EL PERIODO DE MEDICION. SE PRODUCE UNA SEÑAL DE SALIDA MEDIANTE MEDIOS (20, 22 Y 32) EN BASE A LA FRECUENCIA, LA FASE Y LA FLUCTUACION CONOCIDA DE LA FRECUENCIA MEDIDA COMO FUNCION DE LA FASE DE LA SEÑAL PRINCIPAL DE ALIMENTACION.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/716,299 US5361064A (en) | 1991-06-17 | 1991-06-17 | Vehicle detector with power main noise compensation |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2109315T3 true ES2109315T3 (es) | 1998-01-16 |
Family
ID=24877489
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES92305448T Expired - Lifetime ES2109315T3 (es) | 1991-06-17 | 1992-06-15 | Detector de vehiculos con compensacion del ruido de la energia principal. |
Country Status (7)
Country | Link |
---|---|
US (1) | US5361064A (es) |
EP (1) | EP0523853B1 (es) |
JP (1) | JPH05189695A (es) |
AU (1) | AU654188B2 (es) |
CA (1) | CA2069525A1 (es) |
DE (1) | DE69223291T2 (es) |
ES (1) | ES2109315T3 (es) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5523753A (en) * | 1994-09-12 | 1996-06-04 | Minnesota Mining And Manufacturing Company | Vehicle detector system with periodic source filtering |
US5751225A (en) * | 1994-09-12 | 1998-05-12 | Minnesota Mining And Manufacturing Company | Vehicle detector system with presence mode counting |
US5705999A (en) * | 1995-06-05 | 1998-01-06 | Shell Oil Company | Engine operation detection |
DE19615808A1 (de) * | 1996-04-20 | 1997-10-23 | Reitter & Schefenacker Gmbh | Rückleuchte eines Fahrzeuges, vorzugsweise eines Kraftfahrzeuges |
US6304180B1 (en) * | 1998-04-15 | 2001-10-16 | Brian P. Platner | Highly versatile occupancy sensor |
EP0987566A3 (de) * | 1998-09-15 | 2003-03-12 | Siemens Aktiengesellschaft | Fahrzeugdetektor mit mindestens einer Induktivschleife als Sensor und Verfahren zum Durchführen einer Fahrzeugdetektion |
KR20020000790A (ko) * | 1999-03-22 | 2002-01-05 | 인덕티브 시그나츄어 테크놀로지스, 인코포레이티드. | 투자율-변조된 반송파 참고 기법 |
JP2003519849A (ja) | 2000-01-05 | 2003-06-24 | インダクティブ シグナチュアー テクノロジーズ、 インコーポレイテッド | 誘導性ループ検出器における能動分離のための方法と装置 |
AUPR182400A0 (en) * | 2000-11-30 | 2001-01-04 | Silverbrook Research Pty. Ltd. | An apparatus (ap27) |
WO2003003412A2 (en) * | 2001-06-29 | 2003-01-09 | Inductive Signature Technologies, Inc. | Inductive signature measurement circuit |
US8028961B2 (en) | 2006-12-22 | 2011-10-04 | Central Signal, Llc | Vital solid state controller |
US20100147832A1 (en) * | 2008-12-16 | 2010-06-17 | Barker Iii Charles R | Induction cookware identifying |
US8766221B1 (en) * | 2010-04-30 | 2014-07-01 | Power-One, Inc. | Isolation system for a bi-directional communication bus line |
EP2576316A2 (en) | 2010-05-31 | 2013-04-10 | Central Signal, LLC | Train detection |
CN102982685A (zh) * | 2012-12-10 | 2013-03-20 | 黑龙江工程学院 | 城市快速路汽车流量实时采集装置 |
CN103606283B (zh) * | 2013-11-23 | 2015-11-18 | 李洪星 | 高速公路车流量采集方法 |
CN103971524B (zh) * | 2014-05-21 | 2016-07-27 | 电子科技大学 | 一种基于机器视觉的交通流量检测方法 |
CN104183142B (zh) * | 2014-08-18 | 2017-03-15 | 安徽科力信息产业有限责任公司 | 一种基于图像视觉处理技术的车流量统计方法 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4122507Y1 (es) * | 1964-06-24 | 1966-11-10 | ||
US3397364A (en) * | 1967-05-24 | 1968-08-13 | Small Business Administ | Inductive loop metallic object detector |
US3989932A (en) * | 1974-02-21 | 1976-11-02 | Canoga Controls Corporation | Inductive loop vehicle detector |
US3949162A (en) * | 1974-02-25 | 1976-04-06 | Actron Industries, Inc. | Detector array fixed-pattern noise compensation |
US3943339A (en) * | 1974-04-29 | 1976-03-09 | Canoga Controls Corporation | Inductive loop detector system |
US4276539A (en) * | 1978-06-22 | 1981-06-30 | U.S. Philips Corporation | Vehicle detection systems |
GB2087564B (en) * | 1980-11-14 | 1984-06-13 | Redland Automation Ltd | Object detector |
EP0103393B1 (en) * | 1982-08-13 | 1987-11-11 | Sarasota Automation Limited | Inductive loop vehicle detector |
AU583785B2 (en) * | 1982-12-02 | 1989-05-11 | Peek Traffic Limited | Improved environmental tracking in inductance loop vehicle detection systems |
US4873494A (en) * | 1983-03-16 | 1989-10-10 | Sarasota Automation Limited | Inductive loop presence detector with cross talk filter |
US5012131A (en) * | 1988-12-19 | 1991-04-30 | Sanders Associates | Power supply noise compensation for a high frequency phase detector |
-
1991
- 1991-06-17 US US07/716,299 patent/US5361064A/en not_active Expired - Fee Related
-
1992
- 1992-05-26 CA CA002069525A patent/CA2069525A1/en not_active Abandoned
- 1992-05-28 AU AU17245/92A patent/AU654188B2/en not_active Ceased
- 1992-06-15 ES ES92305448T patent/ES2109315T3/es not_active Expired - Lifetime
- 1992-06-15 DE DE69223291T patent/DE69223291T2/de not_active Expired - Fee Related
- 1992-06-15 EP EP92305448A patent/EP0523853B1/en not_active Expired - Lifetime
- 1992-06-16 JP JP15683892A patent/JPH05189695A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
EP0523853B1 (en) | 1997-11-26 |
DE69223291D1 (de) | 1998-01-08 |
EP0523853A1 (en) | 1993-01-20 |
AU654188B2 (en) | 1994-10-27 |
AU1724592A (en) | 1992-12-24 |
DE69223291T2 (de) | 1998-05-28 |
CA2069525A1 (en) | 1992-12-18 |
US5361064A (en) | 1994-11-01 |
JPH05189695A (ja) | 1993-07-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ES2109315T3 (es) | Detector de vehiculos con compensacion del ruido de la energia principal. | |
CA1278065C (en) | Inductance divider sensor | |
FR2412851A1 (fr) | Circuit de detection de tension | |
DK372085A (da) | Kredsloebsanordning til kompensation af variationer i en magnetfeltfoelers overfoeringsfaktor | |
DE3865582D1 (de) | Laserinterferometer zur interferometrischen laengenmessung. | |
IT1261950B (it) | Dispositivo rivelatore di posizione assiale di aste, in particolare steli di pistoni. | |
ES2132080T3 (es) | Aparato para la conversion fotoelectrica. | |
DE3684816D1 (de) | Bestimmen des wertes einer sich bewegenden muenze. | |
DE60326830D1 (de) | Magnetischer wegsensor | |
DE3674920D1 (de) | Schaltungsanordnung zur erzeugung eines der frequenz eines wechselstromsignals zugeordneten messsignals. | |
KR880004318A (ko) | 배전선로의 접지저항 측정방법및 장치 | |
SU991283A1 (ru) | Устройство дл электромагнитного контрол | |
US3588692A (en) | Circuit for developing a pulse having an amplitude determined by the capacitance of a capacitor coupled thereto | |
KR900700849A (ko) | 레이저 길이 측정 방법 | |
SU654889A1 (ru) | Прибор дл измерени диэлектрических параметров материалов | |
SU1545075A1 (ru) | Фотодатчик | |
RU1827523C (ru) | Индукционный датчик положени | |
SU386285A1 (ru) | Частотомер для струнных датчиков вызывного типа | |
SU706798A1 (ru) | Магнитометр мгновенных значений импульсного пол | |
SU1297237A1 (ru) | Измеритель уровн нестационарных электрических сигналов | |
SU397875A1 (ru) | Устройство для геоэлектроразведки | |
SU521524A1 (ru) | Датчик посто нного тока | |
JPS5713363A (en) | Electronic system electric energy meter | |
SU444987A1 (ru) | Частотно-импульсный автобалансный мост | |
SU1624293A1 (ru) | Пневмопереключающее устройство дл измерени давлени |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
Ref document number: 523853 Country of ref document: ES |