GB1573673A - Vehicle detection system - Google Patents
Vehicle detection system Download PDFInfo
- Publication number
- GB1573673A GB1573673A GB1754578A GB1754578A GB1573673A GB 1573673 A GB1573673 A GB 1573673A GB 1754578 A GB1754578 A GB 1754578A GB 1754578 A GB1754578 A GB 1754578A GB 1573673 A GB1573673 A GB 1573673A
- Authority
- GB
- United Kingdom
- Prior art keywords
- output
- produced
- waveform
- voltage
- instant
- 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
Links
- 238000001514 detection method Methods 0.000 title claims description 11
- 238000005070 sampling Methods 0.000 claims description 47
- 230000004913 activation Effects 0.000 claims description 21
- 230000004044 response Effects 0.000 claims description 12
- 230000008859 change Effects 0.000 claims description 9
- 230000015572 biosynthetic process Effects 0.000 claims description 8
- 230000007704 transition Effects 0.000 claims description 8
- 230000006870 function Effects 0.000 claims description 7
- 230000003213 activating effect Effects 0.000 claims description 3
- 230000009849 deactivation Effects 0.000 claims 1
- 230000007613 environmental effect Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 230000001939 inductive effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000000630 rising effect Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 101100119059 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) ERG25 gene Proteins 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
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
- G01V3/104—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 using several coupled or uncoupled coils
- G01V3/105—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 using several coupled or uncoupled coils forming directly coupled primary and secondary coils or loops
-
- 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
- G08G1/017—Detecting movement of traffic to be counted or controlled identifying vehicles
-
- 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)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Environmental & Geological Engineering (AREA)
- Electromagnetism (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geophysics (AREA)
- Traffic Control Systems (AREA)
- Radar Systems Or Details Thereof (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AUPD000177 | 1977-05-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1573673A true GB1573673A (en) | 1980-08-28 |
Family
ID=3766966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1754578A Expired GB1573673A (en) | 1977-05-05 | 1978-05-03 | Vehicle detection system |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS5488799A (enrdf_load_stackoverflow) |
| DE (1) | DE2819565A1 (enrdf_load_stackoverflow) |
| FR (1) | FR2389954A1 (enrdf_load_stackoverflow) |
| GB (1) | GB1573673A (enrdf_load_stackoverflow) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1588570A (en) * | 1977-11-09 | 1981-04-23 | Henderson Group Ltd P C | Door hinge mechanism |
| JPS61243598A (ja) * | 1985-04-19 | 1986-10-29 | オムロン株式会社 | 車両感知器 |
| JPS61243597A (ja) * | 1985-04-19 | 1986-10-29 | オムロン株式会社 | 車両感知器 |
| JPS61282999A (ja) * | 1985-06-07 | 1986-12-13 | オムロン株式会社 | 駐車車両感知装置 |
| JPH0124682Y2 (enrdf_load_stackoverflow) * | 1986-12-26 | 1989-07-26 |
-
1978
- 1978-05-03 GB GB1754578A patent/GB1573673A/en not_active Expired
- 1978-05-03 FR FR7813159A patent/FR2389954A1/fr not_active Withdrawn
- 1978-05-05 DE DE19782819565 patent/DE2819565A1/de not_active Withdrawn
- 1978-05-06 JP JP5399478A patent/JPS5488799A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR2389954A1 (enrdf_load_stackoverflow) | 1978-12-01 |
| DE2819565A1 (de) | 1978-11-23 |
| JPS5488799A (ja) | 1979-07-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |