EP0104437A2 - Vorrichtung zum Aufnehmen und Registrieren von Verkehrsübertretungen unter Verwendung von Lichtenergie im nahsichtbaren Bereich - Google Patents
Vorrichtung zum Aufnehmen und Registrieren von Verkehrsübertretungen unter Verwendung von Lichtenergie im nahsichtbaren Bereich Download PDFInfo
- Publication number
- EP0104437A2 EP0104437A2 EP83108328A EP83108328A EP0104437A2 EP 0104437 A2 EP0104437 A2 EP 0104437A2 EP 83108328 A EP83108328 A EP 83108328A EP 83108328 A EP83108328 A EP 83108328A EP 0104437 A2 EP0104437 A2 EP 0104437A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- vehicle
- headlights
- recording
- light
- visible
- 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.)
- Withdrawn
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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
- G08G1/017—Detecting movement of traffic to be counted or controlled identifying vehicles
- G08G1/0175—Detecting movement of traffic to be counted or controlled identifying vehicles by photographing vehicles, e.g. when violating traffic rules
Definitions
- Apparatuses are known which carry out surveys of traffic offenses by means of photographs taken at the appropriate time and in which data relating to an offense can be stored at the same time. Apparatuses of this kind currently have limited possibilities for night-time surveys, owing to difficulties in recovery and registration. Indeed, it has been observed that the light from the headlights of vehicles in circulation can disturb recovery; in addition, the flash or intense flash required for certain photographic recordings can annoy the drivers of vehicles in the vicinity of the bearing area. These drawbacks have limited the possibilities of benefiting from currently known devices and have damaged their credibility and their employment possibilities.
- the object of the invention is to eliminate the current limitations and drawbacks.
- the invention provides that one operates with the apparatus in question in the energy frequencies of the light type at the margins of the visible band, including in the low infrared or ultraviolet band with limited extensions. in the visible area. In this way, both the disturbances in the photographic recordings caused by the light of the headlights of the vehicles in circulation and the glare of the drivers of these vehicles by the flash necessary for carrying out photographic surveys are avoided.
- the light energy of the flash which is used for recording, remains in the region of black light or almost and, in any case, does not disturb, by its intensity or its color, the vision of the drivers of the vehicles in circulation and cannot remotely warn of the presence of a checkpoint.
- the use of filters on the camera makes it possible to detect all that is illuminated with invisible light, while preserving the film of undesirable images due, for example, to the light of the headlights of motor vehicles in circulation.
- Apparatus of this kind can be used for lifting. the image of a vehicle and its rear registration plate when this vehicle is traveling at a speed exceeding the authorized limit and pre-established by the apparatus, the photographic recording taking place at the margins and beyond the margins of the field visible, and therefore with attenuation of various light disturbances.
- Apparatus fitted as above can also be used to identify offenses for the improper use of high beams.
- the apparatus is provided with selection filters to operate at the margins of the visible range, in particular in the low infrared band, and means of signal integration for the evaluation of the longer or shorter incorrect use of the headlights, in the presence, for example, of a trap car arranged in the opposite lane and whose presence requires not to use the headlights.
- the recording with flash is necessary or flash to photograph the vehicle which is committing the offense and in particular its front part, and also its rear part; in both cases, the use of normal white light may constitute discomfort and this is why it is advisable to provide for the use of the filtering means according to the invention.
- the arrangement according to the invention makes it possible to install the recovery and recording members on the edges of a road even with a double track, thus avoiding having to place an installation in the central strip separating the traffic lanes in both directions. . This simplifies the use of the equipment and also makes it possible to carry out several types of checks with the same equipment.
- provision may be made for a prolonged increase in the offense constituted by the improper and prolonged use of headlights - which is necessary for signal integration - with an optical type system comprising a photoelectric cell positioned at the focus the optical system which explores the lane of traffic, to control the use of the headlights by the vehicles which occur; the arrangement is designed so that the light is concentrated on the photocell as long as the vehicle is distant, while this light is defocused and therefore attenuated as the vehicle approaches.
- filters for the low infrared and at the margins of the visible range also allows, in this case, take readings and recordings without risk of causing disturbances and signaling the presence of a checkpoint.
- an apparatus for the specified purposes, mainly comprises a camera intended to photograph and therefore memorize the image of a vehicle - including its license plate - and further comprises , a generator of flashes of light or generator of flash, designed to allow a strong instantaneous illumination to impress the film with the desired image.
- the emission of the generator and the objective of the camera are equipped with a filter designed to exclude most of the visible range of light, but also designed to allow the passage of energy of light type in at least one of the ranges adjacent to the visible range with limited extensions in the visible and therefore in a range close to the ultraviolet and in the low infrared region; the latter seems to be preferable because it is easier to find on the market both the filters and the photographic equipment which must be used in the camera.
- an apparatus 1 for taking photographs and producing a flash of light (flash) in the direction of the arrow f 1 must be able to be activated, for example, to take data from a vehicle V by photographing its rear part, vehicle V moving along the arrow f V.
- a flash of light can hinder or distract the driver of vehicle V and can dazzle the driver of a vehicle V2 occurring in the opposite direction; moreover, a flash of light which can be perceived from a distance constitutes an obvious sign of the presence of control equipment, which then makes much of the function of such apparatus useless, since it exercises a role of deterrence especially when we do not know its presence.
- direct light is not detectable insofar as it is at least attenuated in the visible field, while the use of specific material for the range of chosen frequencies allows to obtain absolutely complete photographs.
- the equipment in question also makes it possible to identify a specific offense, namely the improper use of high beams.
- a specific offense namely the improper use of high beams.
- it is necessary to assess the intensity of the driving beam and the period of use of the driving beam, and account must be taken of variations in the distance between the vehicle and the detection equipment.
- This switchgear must be able to distinguish the dazzling light from the headlights from the less intense and non-annoying light from the low beams.
- rational positioning must be provided at the necessary level in relation to the traffic lane to be brought under control; it is necessary to select by intensity with an adequate threshold and an integration of the quantities of energy received by the sensitive element in order to assess whether the incorrect use of the headlights has extended beyond a tolerable limit.
- the apparatus will therefore include an integrator of the signal received during a predetermined period, an intensity threshold below which the energy received is not counted, and a means which allows compensation as a function of the distance gradually reducing between vehicle and sensitive element. Everything must be accompanied by the data collection system for the identification of the vehicle and even for the proof of the offense, as explained above.
- FIG. 3 shows an optical system 6 with a lens optic 8 placed before the photoelectric sensitive element 10.
- the device is designed so that the rays of a parallel or quasi-parallel beam F are concentrated on the sensitive element 10 which is at the focus of the optical system; therefore, the energy of distant driving headlights is sufficiently concentrated and high to exceed the threshold provided for the assessment, while the rays of distant passing headlights have no influence.
- Photographic recording can be carried out (FIG. 2) when the vehicle is in position V3 close to switchgear 1 or when it is in position V4 having passed switchgear l, and in both conditions, while that the start of the evaluation can take place at a considerable distance from the apparatus 1, possibly using a control system also automated with range finder, detector, time or other.
- FIG. 4 shows an installation diagram (produced in the form of a block diagram) which can also be provided on board a motor vehicle.
- MF is indicated the camera, in So the optical sensitive element, in FS the flash or lightning generator; in ST is indicated a means used to signal the presence of a vehicle likely to be dazzled by the headlights of another vehicle occurring in the track under control.
- CV designates a converter, TM a timer and AT an amplifier with trigger.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Traffic Control Systems (AREA)
- Closed-Circuit Television Systems (AREA)
- Road Signs Or Road Markings (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT09502/82A IT1192499B (it) | 1982-08-30 | 1982-08-30 | Apparecchiatura per rilevamenti e registrazioni di infrazioni stradali,con l'impiego di energia di tipo luminoso nelle bande contigue a quella visibile |
| IT950282 | 1982-08-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0104437A2 true EP0104437A2 (de) | 1984-04-04 |
| EP0104437A3 EP0104437A3 (de) | 1985-08-28 |
Family
ID=11131079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP83108328A Withdrawn EP0104437A3 (de) | 1982-08-30 | 1983-08-24 | Vorrichtung zum Aufnehmen und Registrieren von Verkehrsübertretungen unter Verwendung von Lichtenergie im nahsichtbaren Bereich |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0104437A3 (de) |
| IT (1) | IT1192499B (de) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992003808A1 (en) * | 1990-08-17 | 1992-03-05 | The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland | Surveillance apparatus particularly for use in viewing vehicle number-plates |
| EP0593979A1 (de) * | 1992-10-20 | 1994-04-27 | Daimler-Benz Aerospace Aktiengesellschaft | Vorrichtung zur Aufzeichnung von Livebildern einer Rotlichtüberwachungsanlage |
| WO1998005016A1 (en) * | 1996-07-26 | 1998-02-05 | Paolo Sodi | Machine and method for detecting traffic offenses with dynamic aiming systems |
| ES2349605A1 (es) * | 2009-05-19 | 2011-01-07 | Eyp Scp S.A. | Flash infrarrojo de potencia. |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7175127B2 (en) | 2002-09-27 | 2007-02-13 | C.G. Bretting Manufacturing Company, Inc. | Rewinder apparatus and method |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1047191A (fr) * | 1951-07-10 | 1953-12-11 | Silec Liaisons Elec | Dispositif avertisseur de dépassement pour automobiles |
| US3222682A (en) * | 1964-12-04 | 1965-12-07 | Fred D Huning Jr | Traffic speed violation recorders, and the like |
| US3690233A (en) * | 1970-07-29 | 1972-09-12 | Ltv Aerospace Corp | Photographing means |
| GB1352999A (en) * | 1970-09-18 | 1974-05-15 | Lucas Industries Ltd | Road vehicle lighting systems |
| GB1440621A (en) * | 1973-02-16 | 1976-06-23 | Nat Res Dev | Automatic cameras |
| FR2394417A1 (fr) * | 1977-06-13 | 1979-01-12 | Ouriachi Mabrouk | Commutateur automatique des phares, codes, lanternes, notamment des vehicules routiers en fonction du flux lumineux ambiant |
| FR2466060A1 (fr) * | 1979-06-28 | 1981-03-27 | Sfim | Installation de controle de vitesse des vehicules automobiles |
-
1982
- 1982-08-30 IT IT09502/82A patent/IT1192499B/it active
-
1983
- 1983-08-24 EP EP83108328A patent/EP0104437A3/de not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992003808A1 (en) * | 1990-08-17 | 1992-03-05 | The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland | Surveillance apparatus particularly for use in viewing vehicle number-plates |
| EP0593979A1 (de) * | 1992-10-20 | 1994-04-27 | Daimler-Benz Aerospace Aktiengesellschaft | Vorrichtung zur Aufzeichnung von Livebildern einer Rotlichtüberwachungsanlage |
| WO1998005016A1 (en) * | 1996-07-26 | 1998-02-05 | Paolo Sodi | Machine and method for detecting traffic offenses with dynamic aiming systems |
| ES2349605A1 (es) * | 2009-05-19 | 2011-01-07 | Eyp Scp S.A. | Flash infrarrojo de potencia. |
Also Published As
| Publication number | Publication date |
|---|---|
| IT8209502A0 (it) | 1982-08-30 |
| IT1192499B (it) | 1988-04-13 |
| EP0104437A3 (de) | 1985-08-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Designated state(s): AT BE CH DE FR GB LI NL SE |
|
| PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
| AK | Designated contracting states |
Designated state(s): AT BE CH DE FR GB LI NL SE |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 19860429 |