DE10136138B4 - Windscreen wiper device and method for its operation - Google Patents
Windscreen wiper device and method for its operation Download PDFInfo
- Publication number
- DE10136138B4 DE10136138B4 DE10136138A DE10136138A DE10136138B4 DE 10136138 B4 DE10136138 B4 DE 10136138B4 DE 10136138 A DE10136138 A DE 10136138A DE 10136138 A DE10136138 A DE 10136138A DE 10136138 B4 DE10136138 B4 DE 10136138B4
- Authority
- DE
- Germany
- Prior art keywords
- precipitation
- windscreen wiper
- windshield
- micro
- data
- 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 - Fee Related
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/95—Radar or analogous systems specially adapted for specific applications for meteorological use
- G01S13/956—Radar or analogous systems specially adapted for specific applications for meteorological use mounted on ship or other platform
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/04—Wipers or the like, e.g. scrapers
- B60S1/06—Wipers or the like, e.g. scrapers characterised by the drive
- B60S1/08—Wipers or the like, e.g. scrapers characterised by the drive electrically driven
- B60S1/0818—Wipers or the like, e.g. scrapers characterised by the drive electrically driven including control systems responsive to external conditions, e.g. by detection of moisture, dirt or the like
- B60S1/0822—Wipers or the like, e.g. scrapers characterised by the drive electrically driven including control systems responsive to external conditions, e.g. by detection of moisture, dirt or the like characterized by the arrangement or type of detection means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/04—Wipers or the like, e.g. scrapers
- B60S1/06—Wipers or the like, e.g. scrapers characterised by the drive
- B60S1/08—Wipers or the like, e.g. scrapers characterised by the drive electrically driven
- B60S1/0818—Wipers or the like, e.g. scrapers characterised by the drive electrically driven including control systems responsive to external conditions, e.g. by detection of moisture, dirt or the like
- B60S1/0822—Wipers or the like, e.g. scrapers characterised by the drive electrically driven including control systems responsive to external conditions, e.g. by detection of moisture, dirt or the like characterized by the arrangement or type of detection means
- B60S1/0859—Other types of detection of rain, e.g. by measuring friction or rain drop impact
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2555/00—Input parameters relating to exterior conditions, not covered by groups B60W2552/00, B60W2554/00
- B60W2555/20—Ambient conditions, e.g. wind or rain
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
- G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
- G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
- G01S2013/9316—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles combined with communication equipment with other vehicles or with base stations
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
- G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
- G01S2013/9322—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles using additional data, e.g. driver condition, road state or weather data
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
- G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
- G01S2013/9323—Alternative operation using light waves
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
- G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
- G01S2013/9325—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles for inter-vehicle distance regulation, e.g. navigating in platoons
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Ocean & Marine Engineering (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Radar Systems Or Details Thereof (AREA)
- Traffic Control Systems (AREA)
Abstract
Scheibenwischvorrichtung
für Kraftfahrzeuge
mit wenigstens einem motorisch angetriebenen Scheibenwischer, einem
Niederschlagssensor zur Erfassung von Niederschlagsdaten und einer
Steuereinheit zur Ansteuerung des Scheibenwischers in Abhängigkeit
von den Niederschlagsdaten,
wobei der Niederschlagssensor eine
Sende-/Empfangseinrichtung (2, 4) für elektromagnetische Mikro-
oder Millimeterwellen umfasst,
dadurch gekennzeichnet,
dass
außerdem
ein für
Benetzung und Verschmutzung der Windschutzscheibe des Kraftfahrzeuges
empfindlicher Sensor (12) vorgesehen ist.Windscreen wiper device for motor vehicles with at least one motor-driven windscreen wiper, a precipitation sensor for recording precipitation data and a control unit for controlling the windscreen wiper depending on the precipitation data,
wherein the precipitation sensor comprises a transmitter / receiver device (2, 4) for electromagnetic micro or millimeter waves,
characterized,
in addition, a sensor (12) which is sensitive to wetting and soiling of the windshield of the motor vehicle is provided.
Description
Die Erfindung betrifft eine Scheibenwischvorrichtung und ein Verfahren zu deren Betrieb gemäß den Oberbegriffen der Patentansprüche 1 und 7.The The invention relates to a windshield wiper device and a method for their operation according to the generic terms of the claims 1 and 7.
Eine
Scheibenwischvorrichtung zur Reinigung der Windschutzscheibe eines
Kraftfahrzeuges, bei der ein motorisch angetriebener Scheibenwischer in
Abhängigkeit
von Niederschlagsdaten angesteuert wird, die durch einen optischen
Niederschlagssensor erfasst werden, ist aus der
Optische Niederschlagssensoren erfassen den Niederschlag nicht direkt, sondern als Benetzung der Windschutzscheibe. Daher reagieren sie nicht nur auf Feuchtigkeit auf der Windschutzscheibe, sondern auch auf trockene Verschmutzung der Scheibe wie zum Beispiel einen Salzfilm, was die Messergebnisse verfälscht und manuelles Eingreifen des Fahrers erforderlich machen kann, damit dieser klare Sicht ohne Schlierenbildung erhält.optical Precipitation sensors do not record precipitation directly, but rather as wetting the windshield. Therefore, they do not just react on moisture on the windshield, but also on dry Pollution of the disc such as a salt film, what the measurement results falsified and manual intervention by the driver may be required this clear view without streaking gets.
Alternative
Niederschlagssensoren, etwa auf Basis der elektrischen Leitfähigkeit
(wie in der
Aus
der Offenlegungsschrift
Der Erfindung liegt die Aufgabe zugrunde, eine Scheibenwischvorrichtung zu schaffen, welche automatisch und bedarfsgerecht auf die Scheibenwaschanlage einwirkt.Of the Invention is based on the object, a windshield wiper device to create which automatically and as needed to the windscreen washer system acts.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass der Niederschlagssensor ein Mikro- oder Millimeterwellen-Radar umfasst, das so betrieben wird, dass die Niederschlagsdaten aus rückgestreuten Mikro- oder Millimeterwellen gewonnen werden.These Task is inventively characterized solved, that the precipitation sensor is a micro or millimeter wave radar which is operated so that the precipitation data from backscattered Micro or millimeter waves are obtained.
Dabei wird zusätzlich zu dem Radar-Niederschlagssensor irgend ein konventioneller Niederschlagssensor vorgesehen, d.h. ein Sensor, der für Benetzung, aber auch Verschmutzung der Windschutzscheibe des Kraftfahrzeuges empfindlich ist. Indem man den kumulativen Benetzungs- und Verschmutzungsgrad der Windschutzscheibe des Kraftfahrzeuges mit den durch die Sende-/Empfangseinrichtung gewonnenen Niederschlagsdaten vergleicht, kann man Verschmutzungen und Benetzungen der Windschutzscheibe voneinander unterscheiden, wobei im Falle einer auf diese Wiese erkannten Verschmutzung automatisch Reinigungsflüssigkeit auf die Windschutzscheibe gesprüht wird. Dadurch erhält man zusätzlich zu der automatischen Steuerung der Wischintervalldauer oder Wischgeschwindigkeit eine automatisch arbeitende Wisch-Wasch-Anlage, die der Fahrer bisher manuell betätigen muss.there will be added to the radar precipitation sensor, any conventional precipitation sensor provided, i. a sensor for wetting, but also pollution the windshield of the motor vehicle is sensitive. By doing the cumulative degree of wetting and soiling of the windshield of the motor vehicle with the by the transmitting / receiving device obtained precipitation data compares, you can get dirt and wetting of the windscreen differ from each other, whereby in case of pollution detected in this field automatically Cleaning fluid on sprayed the windshield becomes. This preserves one additionally for the automatic control of the wiping interval duration or wiping speed an automatic wiper-washing system that the driver has so far manually press got to.
Das Radar für elektromagnetische Mikro- oder Millimeterwellen erlaubt eine Erfassung der tatsächlichen Niederschlagsmenge als alleinige oder zusätzliche Steuergröße für die Wischintervalldauer oder Wischgeschwindigkeit.The Radar for electromagnetic micro or millimeter waves allows detection the actual Precipitation amount as sole or additional control variable for the wiping interval duration or Wiping speed.
Ein
besonderer Vorteil der Erfindung ist, dass viele neuere Fahrzeuge
von vornherein mit einem oder mehreren Radargeräten ausgerüstet sind, beispielsweise einer
Radareinrichtung für
Abstandsregelung (Autonomous Cruise Control – ACC), einem Sensor zur Früherkennung
von Zusammenstößen (sog.
Precrash-Sensor),
einem Einparksensor und/oder einem Radarkommunikationsgerät zur Kommunikation
mit anderen Fahrzeugen. So eine Radareinrichtung kann über ihre
eigentliche Funktion hinaus zusätzlich
zur Niederschlagsmessung verwendet werden, so dass hierfür kein eigener
Sensor benötigt
wird. Niederschlagserfassung mittels Radar ist an sich bekannt,
beispielsweise aus der
Die Sende- und Empfangsrichtung von vorhandenen Radareinrichtungen ist normalerweise horizontal, wie es auch für Niederschlagsmessung zweckmäßig ist.The Transmitting and receiving direction of existing radar devices is usually horizontal, as it is useful for precipitation measurement.
In einer bevorzugten Ausführungsform wird zusätzlich zu dem Radar-Niederschlagssensor irgendein konventioneller Niederschlagssensor vorgesehen, d.h. ein Sensor, der für Benetzung, aber auch Verschmutzung der Windschutzscheibe des Kraftfahrzeuges empfindlich ist. Indem man den kumulativen Benetzungs- und Verschmutzungsgrad der Windschutzscheibe des Kraftfahrzeuges mit den durch die Sende-/Empfangseinrichtung gewonnenen Niederschlagsdaten vergleicht, kann man Verschmutzungen und Benetzungen der Windschutzscheibe voneinander unterscheiden, wobei im Falle einer auf diese Weise erkannten Verschmutzung automatisch Reinigungsflüssigkeit auf die Windschutzscheibe gesprüht wird. Dadurch erhält man zusätzlich zu der automatischen Steuerung der Wischintervalldauer oder Wischgeschwindigkeit eine automatisch arbeitende Wisch-Wasch-Anlage, die der Fahrer bisher manuell betätigen muss.In a preferred embodiment, in addition to the radar precipitation sensor, any conventional precipitation sensor is provided, ie, a sensor that is sensitive to wetting but also soiling of the windshield of the motor vehicle. By the cumulative Wetting and pollution degree of the windshield of the motor vehicle with the By comparing the precipitation data obtained by the transmitting / receiving device, it is possible to differentiate between soiling and wetting of the windshield, cleaning liquid being automatically sprayed onto the windshield in the case of a contamination detected in this way. As a result, in addition to the automatic control of the wiping interval duration or wiping speed, an automatic wiping-washing system is obtained which the driver has hitherto had to operate manually.
In einer weiteren bevorzugten Ausführungsform gewinnt man erstens aus der Intensität der rückgestreuten Mikro- oder Millimeterwellen Daten zur Menge des Niederschlages und zweitens aus der statistischen und spektralen Verteilung der rückgestreuten Mikro- oder Millimeterwellen-Daten Informationen zur Art des Niederschlages. Mittels dieser Daten kann die Wischintervalldauer oder Wischgeschwindigkeit noch mehr optimiert werden. Zum Beispiel muss bei gleich großer absoluter Niederschlagsmenge im Falle von Sprühregen häufiger gewischt werden als im Falle von relativ großen Regentropfen, und diese Fälle können mittels der statistischen Verteilung der rückgestreuten Signale voneinander unterschieden werden.In a further preferred embodiment First of all, one gains from the intensity of the backscattered micro or millimeter waves Data on the amount of precipitation and secondly from the statistical and spectral distribution of the backscattered Micro or millimeter wave data Information on the type of precipitation. By means of this data, the wiping interval duration or wiping speed be even more optimized. For example, at the same absolute size Rainfall in the case of drizzle be wiped more frequently than in the case of relatively large Raindrops, and these cases can by means of the statistical distribution of the backscattered signals from each other be differentiated.
Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der folgenden Beschreibung zweier Ausführungsbeispiele anhand der Zeichnung. Deren einzige Figur zeigt ein Blockschaltbild einer Scheibenwischvorrichtung für Kraftfahrzeuge mit automatischer Variation der Scheibenwischer-Intervalldauer und/oder -Geschwindigkeit.Further Features and advantages of the invention will become apparent from the following Description of two embodiments based on the drawing. Their only figure shows a block diagram a windscreen wiper device for Motor vehicles with automatic variation of the wiper interval duration and / or -Speed.
Ein
Kraftfahrzeug enthält
ein Radargerät
Das
Signal, das den von Niederschlag reflektierten Teil der Radarstrahlung
darstellt, wird einer Steuereinheit
Zur
Erkennung und Abtrennung des Signals, das den von Niederschlag reflektierten
Teil der Radarstrahlung darstellt, kann man zum Beispiel dessen
statistische Verteilung bzw. dopplerspektralen Eigenschaften verwenden.
Falls es im Einzelfall zu aufwendig ist, die Niederschlagsdaten
aus dem während
der eigentlichen Funktion des Radargerätes
Die spektrale und statistische Verteilung des Niederschlagssignals kann außerdem dazu verwendet werden, ein Maß für die Art des Niederschlages zu gewinnen, das bei der Einstellung der Wischintervalldauer bzw. Wischgeschwindigkeit ebenfalls berücksichtigt wird.The spectral and statistical distribution of the precipitation signal can Furthermore used to be a measure of the kind of the precipitate to win when setting the wiping interval duration or wiping speed is also taken into account.
In
einem weiteren Ausführungsbeispiel
enthält
das Kraftfahrzeug außerdem
einen konventionellen Niederschlagssensor
Die
Steuereinheit
Claims (11)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10136138A DE10136138B4 (en) | 2001-07-25 | 2001-07-25 | Windscreen wiper device and method for its operation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10136138A DE10136138B4 (en) | 2001-07-25 | 2001-07-25 | Windscreen wiper device and method for its operation |
Publications (2)
Publication Number | Publication Date |
---|---|
DE10136138A1 DE10136138A1 (en) | 2003-02-20 |
DE10136138B4 true DE10136138B4 (en) | 2006-06-14 |
Family
ID=7692987
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DE10136138A Expired - Fee Related DE10136138B4 (en) | 2001-07-25 | 2001-07-25 | Windscreen wiper device and method for its operation |
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DE (1) | DE10136138B4 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005051218B4 (en) | 2004-11-06 | 2019-05-23 | Conti Temic Microelectronic Gmbh | Method and device for avoiding accidents |
DE102004061831A1 (en) * | 2004-12-22 | 2006-07-06 | Hella Kgaa Hueck & Co. | Method and device for the combined evaluation of the signals of a rain sensor and a camera |
GB0515605D0 (en) * | 2005-07-29 | 2005-09-07 | Qinetiq Ltd | Laser measurement device and method |
US9409549B2 (en) | 2013-09-25 | 2016-08-09 | Ford Global Technologies, Llc | Autonomous vehicle window clearing |
US11194043B2 (en) * | 2018-01-18 | 2021-12-07 | Analog Devices International Unlimited Company | Radar for weather detection and dynamic control and actuation of vehicle systems |
US11137493B2 (en) * | 2018-10-15 | 2021-10-05 | GM Global Technology Operations LLC | System and method for detecting precipitation using radar |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04309883A (en) * | 1991-04-08 | 1992-11-02 | Fujitsu Ten Ltd | Alarm distance controller |
DE19806592A1 (en) * | 1998-02-17 | 1999-09-23 | Steinel Gmbh & Co Kg | Microwave motion sensor |
DE19822347A1 (en) * | 1998-05-19 | 1999-11-25 | Siegfried Hillenbrand | Precipitation measuring device e.g. for weather-based control of systems in motor vehicle or building |
-
2001
- 2001-07-25 DE DE10136138A patent/DE10136138B4/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04309883A (en) * | 1991-04-08 | 1992-11-02 | Fujitsu Ten Ltd | Alarm distance controller |
DE19806592A1 (en) * | 1998-02-17 | 1999-09-23 | Steinel Gmbh & Co Kg | Microwave motion sensor |
DE19822347A1 (en) * | 1998-05-19 | 1999-11-25 | Siegfried Hillenbrand | Precipitation measuring device e.g. for weather-based control of systems in motor vehicle or building |
Also Published As
Publication number | Publication date |
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DE10136138A1 (en) | 2003-02-20 |
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Owner name: DAIMLERCHRYSLER AG, 70327 STUTTGART, DE |
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