DE202005020142U1 - Surveillance camera for use on ship, has housing with opening, which is closed by partially translucent covering, and image sensor and lens system are arranged in housing such that system is behind blotches in glass pane of covering - Google Patents

Abstract

The camera has housing (10) with an opening (13), which is closed by a partially translucent covering (11), where the housing is made from high-grade steel. An image sensor and a lens system are arranged in the housing. The system and the sensor are arranged and aligned such that the system is behind the blotches in a glass pane of the covering and the image is captured through translucent regions of the covering.

Description

• a) ein Gehäuse weist mindestens eine Öffnung oder offene Seite auf,
• b) die Öffnung oder offene Seite ist durch eine zumindest teilweise lichtdurchlässige Abdeckung verschlossen,
• c) im Gehäuse ist mindestens ein Bildsensor mit einem Linsensystem angeordnet,
• d) Linsensystem und Bildsensor sind so ausgerichtet, dass Aufnahmen durch lichtdurchlässige Bereiche der Abdeckung hindurch möglich sind.

The invention relates to a camera, in particular a surveillance camera. Ships and their cargoes are coveted targets of internationally operating gangs. For technical reasons, certain waters may only be used with special precautions or not at all. To increase security, including for the crew, a camera surveillance may be provided. It is useful to have a camera that is protected and not recognizable as such at first glance. The camera according to the invention has the following features:

• a) a housing has at least one opening or open side,
• b) the opening or open side is closed by an at least partially translucent cover,
• c) at least one image sensor with a lens system is arranged in the housing,
• d) Lens system and image sensor are aligned so that it is possible to take pictures through transparent areas of the cover.

The The technical function of the camera essentially results from the Image sensor and the lens system. In addition, a unit for storage and forwarding the recorded images may be provided. The casing protects Lens system, image sensor and other components. Also protective function has the at least partially translucent cover. lens system and image sensor are protected behind it against environmental influences.

advantageously, is the housing in particular deep-drawn metal, preferably stainless Steel (stainless steel). The housing is seawater resistant with protection class IP67. The housing surface is powder-coated.

To Another idea of the invention is the translucent cover a glass cover, in particular a frosted glass cover with released receiving openings, the receiving openings either breakthroughs in the glass cover or non-frosted areas of the glass cover are. Preferably, the cover is formed continuously with a non-frosted area near the lens system so that the Camera, from the cover unhindered to take pictures or movies can.

To Another idea of the invention is the housing after Type of housing for headlights formed on board of ships, in particular of stainless steel and with a circumferential seal between the cover and housing. Usual headlights (about Deckstrahler) on board ships are with a halogen lamp equipped in the housing. The translucent Cover is seewasserfest sealingly arranged on the housing. For the camera according to the invention the image sensor and the lens system are arranged instead of the lamp. externally is the camera first only recognizable as headlights.

Preferably is provided as an image sensor, a digital CMOS image sensor. This can choose for colored or black and white Be designed pictures.

To Another idea of the invention is at least two image sensors each provided with its own lens system, in particular with different ones optical sensitivities. In one embodiment of the invention is a Image sensor for colored Pictures with a resolution from 1280 to 960 Pixels provided while the other image sensor will take black and white images at the same resolution can, but an 8 times higher Sensitivity.

To Another idea of the invention is the cover with closures on casing kept, with the closures especially against unauthorized use. As opening security systems can in particular locks or provided only with special tools operable closure means be. An unauthorized opening of the housing can be avoided or made more difficult.

To In another aspect of the invention, the camera is characterized by an electronic circuit or hardware and associated software for connecting the camera to a computer network, in particular such that the pictures / movies taken by the camera are from a Computer with web browser can be read or retrieved. The camera preferably has the functionality of a web server with its own IP address, for example of the type http: // nnn.nnn.nn.nn.

To In another aspect of the invention, the camera is characterized through an outside on the housing Flanged junction box for the Connection of a power supply line and / or a transmission line. As a transmission line Preferably, a network cable is provided, such as the Ethernet type.

Further Features of the invention will become apparent from the claims and from the description by the way.

advantageous embodiments The invention will be explained in more detail with reference to drawings. It demonstrate:

1 an exploded view of the camera with housing, cover and opto-electronic unit,

2 an exploded view of the camera, in which the optoelectronic unit is decomposed into other parts.

The camera according to the invention has a housing 10 with a cover 11 and a mission 12 on. The latter has the function of an optoelectronic unit The housing 10 is made of stainless steel deep-drawn and pot-shaped or trough-shaped. An open page 13 is closed by the cover 11 ,

A floor 14 of the housing 10 has fastening brackets 15 (only one console is visible) to hold the insert 12 on. Between ground 14 and cover 11 , namely in the area of a circumferential wall 16 , Outside is a U-shaped bracket 17 intended.

In the area of the transition between soil 14 and surrounding wall 16 is a narrow slanting wall eighteen formed on which outside a junction box 19 is flanged. The wall eighteen is with the required cable glands 20 Mistake.

The cover 11 has a frosted glass pane 21 , a sturdy surrounding frame 22 and a seal (not visible). The frosting of the glass 21 is in the range of two circular spots 23 . 24 interrupted. There is the glass 21 clearly transparent.

The cover 11 is with the case 10 tight but releasably connected by the holding frame 22 on a corresponding housing flange 25 with (in this case) four on the circumference of the housing flange 25 with equally spaced closures 26 is attached. The closures 26 are secured against unauthorized opening. In the embodiment shown here, the closures can only be opened with special tools. Alternatively, locks can be provided as a further opening security systems.

The use 12 has two boards 27 . 28 on, which are arranged and held at a distance and parallel to each other. The board 27 is on the mounting brackets 15 releasably held while the board 28 on rod-shaped spacers 29 on the board 27 and closer to the cover 11 is held. The board 27 also carries at the edge opposing brackets 30 . 31 , on each of which an image sensor with lens system 32 . 33 is arranged. The board 28 is slightly smaller than the board 27 and sits between the brackets 30 . 31 , The boards 27 and 28 are provided with the required for the control and operation of the camera electronic circuits, which are not shown in detail. The existing connection cables are not shown.

casing 10 and cover 11 are designed purely externally as emitters for use on board ships, such as an emitter of the "Iceland" type of the applicant. Such lights on board ships are also referred to as deck lights or headlights.

The lens systems 32 . 33 are arranged and aligned so that they are just behind the non-frosted spots 23 . 24 the glass pane 21 to sit. Thus, the functionality of the camera as a whole is guaranteed, although the camera appears outwardly as a spotlight.

An image sensor (with lens system 32 ) is a colored CMOS sensor type with 1280 x 960 pixels. The other image sensor (with lens system 33 ) is a black and white CMOS sensor type with 1280 x 960 pixels, but with an 8 times higher sensitivity than the color image sensor.

The lens systems 32 . 33 are standard wide angle with a 55 ° diagonal. Incidentally, the lenses may also have different or different focal lengths, for example, 42, 72 or 150 millimeters or be adjustable.

The camera is optionally connected via a network cable (Ethernet), an ISDN connection (SO bus) and an electrical line. The intended electronic circuits are equipped and provided with appropriate software to give the camera functionality as a web server. The images taken by the camera can be read by a connected computer with a web browser without additional software to be installed on the computer. The functionality includes a variety of image formats and transfer rates (BMP, JPEG, M × PEG) with typically six to 20 kilobytes or more or up to 12 or 25 frames per second. The image sensors allow up to 4x digital zoom. Preferably also the lens systems 32 . 33 self adjustable. Preferably, the camera has an internal image memory of 64 MB or more.

10

casing

11

cover

12

commitment

13

open page

14

ground

15

mounting brackets

16

encircling wall

17

bracket

18

wall

19

junction box

20

Cable glands

21

frosted pane

22

holding frame

23

spot

24

spot

25

housing flange

26

closures

27

circuit board

28

circuit board

29

spacer

30

Haltebock

31

Haltebock

32

lens system with image sensor

33

lens system with image sensor

Claims (9)

Camera, in particular a surveillance camera, having the following features: a) a housing ( 10 ) has at least one opening or open side ( 13 ), b) the opening or open side ( 13 ) is by an at least partially translucent cover ( 11 ) closed, c) in the housing ( 10 ) is at least one image sensor with a lens system ( 32 . 33 ), d) lens system ( 32 . 33 ) and image sensor are aligned so that shots through translucent areas (spots 23 . 24 ) of the cover ( 11 ) are possible through. Camera according to claim 1, characterized in that the housing ( 10 ) made of in particular deep-drawn metal, preferably made of stainless steel. Camera according to claim 1, characterized in that the translucent cover ( 11 ) is a glass cover, in particular a frosted glass cover with exposed receiving openings, wherein the receiving openings are either openings in the glass cover or non-frosted areas of the glass cover. Camera according to claim 1 or one of the further claims, characterized in that the housing ( 10 ) is designed in the manner of a housing for headlights on board ships, in particular made of stainless steel and with a circumferential seal between the cover ( 11 ) and housing ( 10 ). Camera according to claim 1 or one of the further claims, characterized in that the image sensor is a digital CMOS image sensor is provided. Camera according to claim 1 or one of the further claims, characterized in that at least two image sensors each with its own lens system ( 32 . 33 ) are provided, in particular with different optical sensitivities. Camera according to claim 1 or one of the further claims, characterized in that the cover ( 11 ) with closures ( 26 ) on the housing ( 10 ), the closures being particularly secured against unauthorized use. Camera according to claim 1 or one of the further claims by an electronic circuit or hardware and associated software for connecting the camera to a computer network, in particular such that the images / movies taken by the camera are from a computer can be read out or retrieved using a web browser. Camera according to claim 1 or one of the further claims, characterized by an outside of the housing ( 10 ) flanged junction box ( 19 ) for the connection of a power supply line and / or a transmission line.