ZA856303B - Loop detector - Google Patents
Loop detectorInfo
- Publication number
- ZA856303B ZA856303B ZA856303A ZA856303A ZA856303B ZA 856303 B ZA856303 B ZA 856303B ZA 856303 A ZA856303 A ZA 856303A ZA 856303 A ZA856303 A ZA 856303A ZA 856303 B ZA856303 B ZA 856303B
- Authority
- ZA
- South Africa
- Prior art keywords
- loop detector
- detector
- loop
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
- G01V3/10—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils
- G01V3/101—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils by measuring the impedance of the search coil; by measuring features of a resonant circuit comprising the search coil
-
- 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)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Remote Sensing (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Electromagnetism (AREA)
- Geophysics (AREA)
- Traffic Control Systems (AREA)
- Geophysics And Detection Of Objects (AREA)
- Near-Field Transmission Systems (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB848421715A GB8421715D0 (en) | 1984-08-28 | 1984-08-28 | Loop detector |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA856303B true ZA856303B (en) | 1986-04-30 |
Family
ID=10565911
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA856303A ZA856303B (en) | 1984-08-28 | 1985-08-20 | Loop detector |
Country Status (6)
Country | Link |
---|---|
US (1) | US4661799A (xx) |
AU (1) | AU575991B2 (xx) |
DE (1) | DE3530480A1 (xx) |
FR (1) | FR2569860B1 (xx) |
GB (1) | GB8421715D0 (xx) |
ZA (1) | ZA856303B (xx) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61245299A (ja) * | 1985-04-22 | 1986-10-31 | オムロン株式会社 | 路車間通信機能付き車両感知器 |
US5705999A (en) * | 1995-06-05 | 1998-01-06 | Shell Oil Company | Engine operation detection |
GB2348501B (en) | 1999-03-31 | 2003-07-30 | Diamond Consulting Services Lt | Loop sensing apparatus for traffic detection |
US6337640B2 (en) * | 1999-03-31 | 2002-01-08 | Diamond Consulting Services Limited | Inductive loop sensor for traffic detection, and traffic monitoring apparatus and method using such a loop sensor |
US6439513B1 (en) | 2001-09-18 | 2002-08-27 | Union Switch & Signal, Inc. | Passive detection system for levitated vehicle or levitated vehicle system |
US7327280B2 (en) * | 2002-08-15 | 2008-02-05 | California Institute Of Technology | Emergency vehicle traffic signal preemption system |
US20050264431A1 (en) * | 2002-04-09 | 2005-12-01 | Bachelder Aaron D | Forwarding system for long-range preemption and corridor clearance for emergency response |
US7113108B1 (en) * | 2002-04-09 | 2006-09-26 | California Institute Of Technology | Emergency vehicle control system traffic loop preemption |
US7098806B2 (en) * | 2002-08-15 | 2006-08-29 | California Institute Of Technology | Traffic preemption system |
US7248149B2 (en) * | 2003-10-06 | 2007-07-24 | California Institute Of Technology | Detection and enforcement of failure-to-yield in an emergency vehicle preemption system |
US20060017562A1 (en) * | 2004-07-20 | 2006-01-26 | Bachelder Aaron D | Distributed, roadside-based real-time ID recognition system and method |
WO2006023841A2 (en) * | 2004-08-18 | 2006-03-02 | California Institute Of Technology | Roadside-based communication system and method |
FR2878080B1 (fr) * | 2004-11-18 | 2011-12-23 | Ct D Etudes Tech De L Equipement Cete De L Est | Boucles communicantes pour transmettre des informations entre les vehicules et l'infrastructure |
BE1016449A5 (nl) * | 2005-02-07 | 2006-11-07 | Traficon Nv | Inrichting voor het detecteren van voertuigen en verkeerscontrolesysteem voorzien van dergelijke inrichting. |
WO2007132068A1 (fr) * | 2006-05-11 | 2007-11-22 | Centre D'etudes Techniques De L'equipement-Cete De L'est | Systeme de detection de vehicule et de communication entre un vehicule et une chaussee, et vehicule adapte |
US8655299B2 (en) * | 2010-06-03 | 2014-02-18 | Broadcom Corporation | Saw-less receiver with RF frequency translated BPF |
US8565711B2 (en) * | 2010-06-03 | 2013-10-22 | Broadcom Corporation | SAW-less receiver including an IF frequency translated BPF |
US20110299634A1 (en) * | 2010-06-03 | 2011-12-08 | Broadcom Corporation | Saw-less receiver with a frequency translated bpf having a negative resistance |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3691819A (en) * | 1971-01-04 | 1972-09-19 | Halliburton Co | Leak detector and method |
BE791039A (fr) * | 1971-11-08 | 1973-05-07 | Lewis Security Syst Ltd | Systemes de securite |
DE2325935C3 (de) * | 1973-05-15 | 1979-07-26 | Signalbau Huber-Designa Gmbh, 8000 Muenchen | Verfahren und Anordnung zur Feststellung von Sonderfahrzeugen in Straßenverkehrsflüssen |
GB1505081A (en) * | 1974-09-17 | 1978-03-22 | Gb Sec Of State Environment | System for the identification of a road vehicle travelling along a predetermined route |
FR2386057A1 (fr) * | 1977-03-31 | 1978-10-27 | Intersub Dev Sa | Installation de localisation d'un mobile dispose dans une conduite |
US4385516A (en) * | 1981-02-19 | 1983-05-31 | Uffelman Malcolm R | System for the detection of the presence of a predetermined chemical vapor distributed in the atmosphere |
-
1984
- 1984-08-28 GB GB848421715A patent/GB8421715D0/en active Pending
-
1985
- 1985-08-20 ZA ZA856303A patent/ZA856303B/xx unknown
- 1985-08-23 US US06/768,782 patent/US4661799A/en not_active Expired - Fee Related
- 1985-08-27 AU AU46806/85A patent/AU575991B2/en not_active Ceased
- 1985-08-27 DE DE19853530480 patent/DE3530480A1/de not_active Withdrawn
- 1985-08-28 FR FR8512845A patent/FR2569860B1/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB8421715D0 (en) | 1984-10-03 |
FR2569860A1 (fr) | 1986-03-07 |
FR2569860B1 (fr) | 1988-05-06 |
AU575991B2 (en) | 1988-08-11 |
US4661799A (en) | 1987-04-28 |
DE3530480A1 (de) | 1986-03-13 |
AU4680685A (en) | 1986-03-06 |
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