DE4026489A1 - Radar responsive reflector - for vehicles based on reflecting and non-reflecting pattern of stripes of specified lacquer - Google Patents
Radar responsive reflector - for vehicles based on reflecting and non-reflecting pattern of stripes of specified lacquerInfo
- Publication number
- DE4026489A1 DE4026489A1 DE19904026489 DE4026489A DE4026489A1 DE 4026489 A1 DE4026489 A1 DE 4026489A1 DE 19904026489 DE19904026489 DE 19904026489 DE 4026489 A DE4026489 A DE 4026489A DE 4026489 A1 DE4026489 A1 DE 4026489A1
- Authority
- DE
- Germany
- Prior art keywords
- vehicle
- reflecting
- lacquer
- reflector
- stripes
- 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- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/14—Reflecting surfaces; Equivalent structures
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
Description
Die Erfindung betrifft einen fahrzeugfesten Reflektor gemäß dem Oberbegriff des Patentanspruchs.The invention relates to a vehicle-mounted reflector according to the Preamble of the claim.
Beispielsweise im Rahmen der Abstandsmessung zwischen einem vor ausfahrenden Fahrzeug und einem Folgefahrzeug ist es bekannt, vom Folgefahrzeug her Radarstrahlung auszusenden, die am voraus fahrenden Fahrzeug reflektiert wird; die Zeit zwischen der Aussen dung und dem Eintreffen der reflektierten Strahlung am Folgefahrzeug wird zur Ermittlung des Abstands zwischen den beiden Fahrzeugen ausgewertet. Schwierigkeiten treten dann auf, wenn in Fahrbahnnähe sich ebenfalls Radarstrahlung reflektierende Gegenstände befinden, deren Lage bezüglich des Folgefahrzeugs aber uninteressant ist.For example, as part of the distance measurement between a front extending vehicle and a following vehicle it is known to send out radar radiation from the following vehicle, which in advance moving vehicle is reflected; the time between outside and the arrival of the reflected radiation at the following vehicle is used to determine the distance between the two vehicles evaluated. Difficulties arise when close to the road there are also objects reflecting radar radiation, whose location is of no interest with regard to the following vehicle.
Daher ist es auch bereits bekannt geworden, am vorausfahrenden Fahrzeug Einrichtungen vorzusehen, die eine polarisierte Strahlung mit der Harmonischen der Frequenz der vom Folgefahrzeug ausgesen deten Strahlung zurücksenden. Entsprechende Einrichtungen sind aber aufwendig.Therefore, it has already become known, in front of the driver Vehicle devices to provide polarized radiation with the harmonic of the frequency emitted by the following vehicle send back radiation. Appropriate facilities are but expensive.
Das Problem kann dadurch verschärft werden, daß nicht nur eine Information über die Existenz bzw. Nichtexistenz eines Fahrzeugs gewünscht wird, sondern auch eine Möglichkeit zur Identifizierung des individuellen Fahrzeug gewünscht ist. Hierzu ist es bekannt, auf dem Fahrzeug optisch lesbare Etiketten anzubringen. Nachteil einer derartigen Lösung ist - außer der Beeinträchtigung des Aus sehens des Fahrzeugs - die Unlesbarkeit des Etiketts bei Ver schmutzung.The problem can be exacerbated by the fact that not just one Information about the existence or nonexistence of a vehicle is desired, but also a means of identification of the individual vehicle is desired. For this it is known Attach optically readable labels to the vehicle. disadvantage such a solution is - except for the impairment of the end of the vehicle - the illegibility of the label at Ver dirt.
Der Erfindung liegt mithin die Aufgabe zugrunde, einen gattungs gemäßen fahrzeugfesten Reflektor zu schaffen, der mit einfachen Mitteln, insbesondere als rein passiver Reflektor, eine eindeutige Fahrzeugerkennung und/oder -identifizierung erlaubt.The invention is therefore based on the object, a genus to create appropriate vehicle-fixed reflector with simple Means, especially as a purely passive reflector, a clear one Vehicle recognition and / or identification allowed.
Die erfindungsgemäße Lösung dieser Aufgabe besteht in den kenn zeichnenden Merkmalen des Patentanspruchs.The inventive solution to this problem consists in the drawing features of the claim.
Geeignet sind Lacke auf Rhodopsinbasis.Lacquers based on rhodopsin are suitable.
Ein Vorteil der Erfindung ist darin zu sehen, daß sie das Aussehen des mit diesem Reflektor ausgerüsteten Fahrzeugs nicht beeinträch tigt. Daher und infolge ihrer möglichen Kleinheit können erfindungs gemäße Reflektoren auch in verschiedenen Bereichen des Fahrzeugs, insbesondere auch seitlich, vorgesehen sein, so daß mit Sicherheit auch aus verschiedenen Richtungen eine Fahrzeugerkennung und/oder -identifizierung möglich ist.An advantage of the invention is that it has the appearance of the vehicle equipped with this reflector does. Therefore, and due to their possible smallness, fiction appropriate reflectors also in different areas of the vehicle, in particular also on the side, so that with certainty Vehicle detection and / or from different directions -identification is possible.
In dem mit der Radarquelle ausgerüsteten Folgefahrzeug - oder auch in einer ortsfesten Überwachungsstation - muß ein Detektor für das durch die reflektierenden und die nichtreflektierenden Zonen des Reflektors in dem reflektierten Strahl erzeugte Muster vorhanden sein. Eine derartige Mustererkennung, die beispielsweise nach dem Prinzip der Fernsehabtastung arbeiten kann, macht jedoch keine technischen Schwierigkeiten.In the following vehicle equipped with the radar source - or even in a fixed monitoring station - a detector must for that by the reflective and the non-reflective Zones of the reflector create patterns in the reflected beam to be available. Such a pattern recognition, for example can work on the principle of television scanning, however no technical difficulties.
Mithin ist durch die Erfindung ein gattungsgemäßer Reflektor ge schaffen, der mit einfachen Mitteln eine eindeutige Fahrzeugerkennung und/oder -identifizierung ermöglicht.Thus, a generic reflector is ge by the invention create a clear vehicle recognition with simple means and / or identification enabled.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19904026489 DE4026489A1 (en) | 1989-09-02 | 1990-08-22 | Radar responsive reflector - for vehicles based on reflecting and non-reflecting pattern of stripes of specified lacquer |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3929213 | 1989-09-02 | ||
| DE19904026489 DE4026489A1 (en) | 1989-09-02 | 1990-08-22 | Radar responsive reflector - for vehicles based on reflecting and non-reflecting pattern of stripes of specified lacquer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE4026489A1 true DE4026489A1 (en) | 1991-03-07 |
Family
ID=25884716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19904026489 Withdrawn DE4026489A1 (en) | 1989-09-02 | 1990-08-22 | Radar responsive reflector - for vehicles based on reflecting and non-reflecting pattern of stripes of specified lacquer |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE4026489A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016216251A1 (en) | 2016-08-30 | 2018-03-01 | Audi Ag | Motor vehicle for use in road traffic and method for determining an extent of a foreign vehicle in a motor vehicle |
-
1990
- 1990-08-22 DE DE19904026489 patent/DE4026489A1/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016216251A1 (en) | 2016-08-30 | 2018-03-01 | Audi Ag | Motor vehicle for use in road traffic and method for determining an extent of a foreign vehicle in a motor vehicle |
| DE102016216251B4 (en) | 2016-08-30 | 2023-09-21 | Audi Ag | Motor vehicle for use in road traffic and method for determining the extent of a third-party vehicle in a motor vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8139 | Disposal/non-payment of the annual fee |