EP4424025A1 - Kameraanordnung für ein fahrzeug und fahrzeug - Google Patents
Kameraanordnung für ein fahrzeug und fahrzeugInfo
- Publication number
- EP4424025A1 EP4424025A1 EP22801456.9A EP22801456A EP4424025A1 EP 4424025 A1 EP4424025 A1 EP 4424025A1 EP 22801456 A EP22801456 A EP 22801456A EP 4424025 A1 EP4424025 A1 EP 4424025A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- vehicle
- desiccant
- camera arrangement
- housing
- camera
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/3554—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for determining moisture content
-
- 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
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/08—Interaction between the driver and the control system
- B60W50/14—Means for informing the driver, warning the driver or prompting a driver intervention
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/02—Bodies
- G03B17/08—Waterproof bodies or housings
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/51—Housings
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/52—Elements optimising image sensor operation, e.g. for electromagnetic interference [EMI] protection or temperature control by heat transfer or cooling elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
- B60R11/04—Mounting of cameras operative during drive; Arrangement of controls thereof relative to the vehicle
-
- 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
- B60W2300/00—Indexing codes relating to the type of vehicle
- B60W2300/12—Trucks; Load vehicles
-
- 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
- B60W2420/00—Indexing codes relating to the type of sensors based on the principle of their operation
- B60W2420/40—Photo, light or radio wave sensitive means, e.g. infrared sensors
- B60W2420/403—Image sensing, e.g. optical camera
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2201/00—Features of devices classified in G01N21/00
- G01N2201/02—Mechanical
- G01N2201/021—Special mounting in general
- G01N2201/0216—Vehicle borne
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2201/00—Features of devices classified in G01N21/00
- G01N2201/02—Mechanical
- G01N2201/023—Controlling conditions in casing
- G01N2201/0238—Moisture monitoring or controlling
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B30/00—Camera modules comprising integrated lens units and imaging units, specially adapted for being embedded in other devices, e.g. mobile phones or vehicles
Definitions
- the invention relates to a camera arrangement for a vehicle with at least one camera arranged in a housing, the housing having at least one transparent area.
- the invention relates to a vehicle with such a camera arrangement.
- a camera arrangement for a vehicle is known from DE 102009 019216 A1.
- the camera arrangement includes a camera mount for fastening a camera behind a pane of vehicle glazing in an interior of a vehicle, a spatial area being formed by the pane, the camera and the camera mount.
- a heated area of the pane is provided in a viewing area of the camera and at least one unheated condensation element is provided in the spatial area for the targeted condensation of water that has evaporated in the viewing area.
- silica gel silicic acid gel or also called silica gel
- silica gel is generally known as a desiccant.
- Silica gel as a desiccant adsorbs water on its comparatively large inner surface and is often enclosed with shipments of goods that are sensitive to moisture.
- the invention is based on the object of specifying a new type of camera arrangement for a vehicle and a vehicle with such a camera arrangement.
- a camera arrangement for a vehicle has at least one camera arranged in a housing, the housing having at least one transparent area.
- a container arranged in the housing with a moisture-adsorbing desiccant is provided, the container having a permeable membrane on at least one side, so that air exchange takes place between an interior of the housing and the desiccant.
- the camera arrangement has a detection unit coupled to the container for detecting a state of the desiccant.
- a relatively dry interior atmosphere in the housing can be largely ensured, since any moisture produced is adsorbed by the desiccant.
- This relatively dry interior atmosphere can also be used when the vehicle is switched off, d. H. when the vehicle is stationary, are maintained as far as possible. Due to the adsorption of the moisture, it is relatively dry in the housing, so that the risk of corrosion of the electronics and mechanics of the camera arrangement can be at least significantly reduced. The electronics and mechanics are thus largely continuously protected from corrosion.
- the drying agent can be used to prevent fogging of the transparent area, i. H. a viewing window, through which the at least one camera captures image data from outside the housing, is essentially avoided, in particular when the vehicle is started, since the drying agent means that the interior atmosphere is as dry as possible.
- the detection unit detects a state of the desiccant, in particular with regard to its ability to absorb moisture, it is possible to exchange the desiccant if necessary in order to optimize the absorbency of the desiccant. It can thus be ensured as far as possible that there is a dry internal atmosphere in the housing.
- the detection unit is designed to detect a saturation and/or loading of the desiccant as a state. Since the saturation is detected, it is then possible to replace the desiccant, see above that the adsorption of moisture in the housing of the camera is optimized by means of the exchanged and in particular renewed desiccant.
- a further embodiment of the camera arrangement provides that the desiccant is designed to change its color depending on its loading.
- the desiccant thus changes its color depending on its state, with this color change being detectable by means of the detection unit and thus a current adsorption capacity of the desiccant being inferred.
- the detection unit has at least one light source emitting white light, at least one color sensor and an evaluation unit coupled to the color sensor.
- the desiccant is illuminated by means of the light source emitting white light, with a color of the desiccant and thus its state being able to be determined by means of the evaluation unit on the basis of detected signals from the color sensor.
- the detection unit is designed to output a warning in the vehicle and/or to send a warning to a diagnostic module of the vehicle and/or to a computer unit that is data-linked to the vehicle if the saturation and/or loading of the desiccant is detected based on the color change to transfer.
- a workshop and/or a service center of the vehicle are informed of the lack of adsorption capacity of the desiccant, so that it can be exchanged in a timely manner in order to maintain the function of the camera.
- the housing has an opening, which can be closed by means of a closure element, for removing and exchanging the container.
- the closable opening makes it possible to remove the container with the stored desiccant from the housing without destroying it in order to replace it.
- the invention relates to a vehicle with a camera arrangement which has at least one camera arranged in a housing with at least one transparent area.
- the camera arrangement also has the container with the desiccant and the detection unit for detecting a state of the desiccant. This makes it possible to reduce the saturation of the desiccant to detect a condition so that the desiccant can be exchanged in order to restore or optimize the functionality of the camera, in particular with regard to detecting the surroundings of the vehicle.
- the vehicle is an automated truck that drives without a driver and, among other things, therefore, a clear view of the camera should be continuously ensured, which can significantly increase the safety of the vehicle and road users in the immediate vicinity of the vehicle.
- FIG. 1 shows a schematic sectional view of a camera arrangement for a vehicle
- FIG. 3 shows a schematic detail of a sectional illustration of the camera arrangement with a detection unit for detecting a need for maintenance
- FIG. 4 schematically shows an enlarged section of a sectional view of the camera arrangement in the area of the detection unit.
- FIG. 1 shows a sectional view of a camera arrangement K of a vehicle (not shown in detail), in particular a commercial vehicle in the form of a truck.
- vehicle can be moved in automated ferry operation, with the presence of a driver not being necessary, ie the vehicle drives without a driver.
- the vehicle typically has sensors, for example lidar-based, radar-based, ultrasound-based and/or ultrasound-based.
- Arranging these sensors poses a relatively great challenge. For reasons of installation space, not all sensors can be arranged in a protected area in the vehicle that is comparatively easy to clean behind a windshield. Also, due to the function, not every sensor can be arranged behind the windshield, since it may be that a sensor works in a frequency band which is incompatible with a material of the windshield. So there is an absorption problem here.
- a separate housing 2 for individual or combined sensors is a possible solution for arranging the sensor or sensors on the outside of the vehicle.
- it is comparatively complex to protect the sensor, which is encapsulated by means of the housing 2, from environmental influences.
- humidity is a relatively big problem. Irrespective of how well the respective sensor is encapsulated by the housing 2, moisture usually finds a way into the housing 2.
- temperature fluctuations lead to condensation and thus e.g. Corrosion of electronics and mechanics and fogging of a viewing window 3 of the housing 2.
- the camera arrangement K Since the automated vehicle is constantly being serviced, there are possibilities with regard to the design of the housing 2 of the camera arrangement K that can be implemented relatively inexpensively. In order to be able to ensure that the camera arrangement K, in particular a camera 1 as an optical sensor of the camera arrangement K, functions as far as possible, the camera arrangement K is designed as described below.
- the camera arrangement K has at least one camera 1 which is arranged in the housing 2 with the viewing window 3 as a transparent area and a closure element 4 . Furthermore, the camera arrangement K has a container 5 with a desiccant 6 in the form of silica gel, which is also referred to as silicic acid gel or silica gel, and/or another suitable granulate.
- a desiccant 6 in the form of silica gel, which is also referred to as silicic acid gel or silica gel, and/or another suitable granulate.
- a side wall of the housing 2, in particular one of the camera 1 facing side wall is formed by a permeable membrane 7, through which a Air exchange LA between an interior of the housing 2 and an interior of the container 5 and thus the desiccant 6 is possible.
- the desiccant 6 is arranged in the housing 2 in order to adsorb the moisture present in the housing 2 in order to prevent fogging of the viewing window 3 and corrosion of the electronics and mechanics of the camera arrangement K as far as possible.
- the closure element 4 If the adsorption capacity of the desiccant 6 is reduced, it is possible via the closure element 4 without great effort to remove the container 5 with the desiccant 6 from the housing 2 and replace it. For example, the container 5 is replaced during regular maintenance of the vehicle and/or when the desiccant 6 is saturated, ie has bound too much moisture, as shown in FIG.
- An enlarged section of the detection unit 8 coupled to the container 5 is shown in FIG. 3, with an enlarged section of a sectional view of the camera arrangement K in the area of the detection unit 8 being shown in FIG.
- the detection unit 8 is coupled to the container 5 via a further viewing window 9 .
- the detection unit 8 has a light source 10 emitting white light L, a color sensor 11 and an evaluation unit 12 coupled to the color sensor 11 .
- the desiccant 6 stored in the container 5, in particular in the form of the silica gel, is colored and has a blue color, for example, in the unsaturated state. When a state of the desiccant 6 approaches saturation due to an amount of adsorbed moisture, the desiccant 6 turns orange, for example.
- the respective color represents an indicator for a state of the desiccant 6.
- the light source 10 emits, for example, continuously or at regular intervals, z. B. at the start and end of the journey, white light L.
- Radiation reflected by the desiccant 6 is detected as a signal S by the color sensor 11 and fed to the evaluation unit 12, which is an electronic measuring system, for evaluation.
- the status of the desiccant 6 is determined based on the determined color of the desiccant 6 and when saturation is detected, ie when the desiccant 6 is loaded, the evaluation unit 12 generates a warning W.
- This warning W is output in the vehicle, to a diagnostic module 13 and/or to a computer unit 14 which is data-technically coupled to the vehicle.
- a respective recipient of the warning notice W is thus informed about the determined state of the desiccant 6 of the camera arrangement K and can thus arrange for the desiccant 6 to be replaced comparatively promptly in order to ensure the functionality of the camera arrangement K, in particular the camera 1, as far as possible.
- Such a camera arrangement K enables the desiccant 6 to be replaced comparatively quickly and easily, it being possible for the replacement to be carried out, for example, by a robot.
- the camera arrangement K can be produced relatively inexpensively, since relatively inexpensive encapsulation is no longer required, since the desiccant 6 immediately binds moisture penetrating the housing 2, so that the formation of condensation water can also be largely ruled out.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Automation & Control Theory (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Health & Medical Sciences (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Human Computer Interaction (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Studio Devices (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102021005334.6A DE102021005334B3 (de) | 2021-10-26 | 2021-10-26 | Kameraanordnung für ein Fahrzeug und Fahrzeug |
| PCT/EP2022/078444 WO2023072602A1 (de) | 2021-10-26 | 2022-10-12 | Kameraanordnung für ein fahrzeug und fahrzeug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4424025A1 true EP4424025A1 (de) | 2024-09-04 |
Family
ID=84330617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22801456.9A Pending EP4424025A1 (de) | 2021-10-26 | 2022-10-12 | Kameraanordnung für ein fahrzeug und fahrzeug |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20250003870A1 (de) |
| EP (1) | EP4424025A1 (de) |
| CN (1) | CN118104243A (de) |
| DE (1) | DE102021005334B3 (de) |
| WO (1) | WO2023072602A1 (de) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0718211A1 (de) * | 1994-12-20 | 1996-06-26 | Pont Saint-Germain SA | Trockenmittelzelle und damit ausgerüsteter Artikel |
| DE102009019216A1 (de) | 2009-04-30 | 2010-01-21 | Daimler Ag | Anordnung einer Kamera hinter einer Fahrzeugverglasung |
| DE102012008089A1 (de) * | 2012-04-21 | 2013-10-24 | Volkswagen Aktiengesellschaft | Beleuchtungsvorrichtung für ein Kraftfahrzeug |
| DE102017004945A1 (de) * | 2017-05-23 | 2018-11-29 | Mann+Hummel Gmbh | Lufttrocknerkartusche und Vorrichtung umfassend eine Lufttrocknerkartusche |
| US10621851B1 (en) * | 2018-06-18 | 2020-04-14 | Waymo Llc | Humidity control system |
| CN109040546B (zh) * | 2018-08-04 | 2024-11-19 | 云南北方光电仪器有限公司 | 一种红外周视观察镜 |
| CN211567821U (zh) | 2019-08-07 | 2020-09-25 | 浙江中笛照明科技有限公司 | 一种自动驾驶模块装置 |
| US11529583B2 (en) * | 2019-11-13 | 2022-12-20 | Raytheon Company | Desiccant saturation level monitoring |
| US12108936B2 (en) * | 2020-01-15 | 2024-10-08 | Stryker Corporation | Anti-fogging endoscopic camera systems and methods |
-
2021
- 2021-10-26 DE DE102021005334.6A patent/DE102021005334B3/de active Active
-
2022
- 2022-10-12 WO PCT/EP2022/078444 patent/WO2023072602A1/de not_active Ceased
- 2022-10-12 US US18/701,149 patent/US20250003870A1/en active Pending
- 2022-10-12 CN CN202280067130.XA patent/CN118104243A/zh active Pending
- 2022-10-12 EP EP22801456.9A patent/EP4424025A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE102021005334B3 (de) | 2023-03-23 |
| WO2023072602A1 (de) | 2023-05-04 |
| US20250003870A1 (en) | 2025-01-02 |
| CN118104243A (zh) | 2024-05-28 |
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