WO2014013349A2 - Caméra thermique - Google Patents

Caméra thermique Download PDF

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Publication number
WO2014013349A2
WO2014013349A2 PCT/IB2013/052793 IB2013052793W WO2014013349A2 WO 2014013349 A2 WO2014013349 A2 WO 2014013349A2 IB 2013052793 W IB2013052793 W IB 2013052793W WO 2014013349 A2 WO2014013349 A2 WO 2014013349A2
Authority
WO
WIPO (PCT)
Prior art keywords
thermal camera
thermal
image
enables
card
Prior art date
Application number
PCT/IB2013/052793
Other languages
English (en)
Other versions
WO2014013349A3 (fr
Inventor
Alper Unsoy
Hakan BAYAR
Ali Yetkin PENBEGUL
Gökhan CUYLAN
Devrim Anil
Ugur Selim GENCOGLU
Peren KORKUT
Original Assignee
Aselsan Elektronik Sanayi Ve Ticaret Anonim Sirketi
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Aselsan Elektronik Sanayi Ve Ticaret Anonim Sirketi filed Critical Aselsan Elektronik Sanayi Ve Ticaret Anonim Sirketi
Priority to MA37779A priority Critical patent/MA20150368A1/fr
Publication of WO2014013349A2 publication Critical patent/WO2014013349A2/fr
Publication of WO2014013349A3 publication Critical patent/WO2014013349A3/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41G—WEAPON SIGHTS; AIMING
    • F41G1/00—Sighting devices
    • F41G1/32—Night sights, e.g. luminescent
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41G—WEAPON SIGHTS; AIMING
    • F41G7/00—Direction control systems for self-propelled missiles
    • F41G7/20—Direction control systems for self-propelled missiles based on continuous observation of target position
    • F41G7/30—Command link guidance systems
    • F41G7/301—Details
    • F41G7/303—Sighting or tracking devices especially provided for simultaneous observation of the target and of the missile
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41G—WEAPON SIGHTS; AIMING
    • F41G7/00—Direction control systems for self-propelled missiles
    • F41G7/20—Direction control systems for self-propelled missiles based on continuous observation of target position
    • F41G7/30—Command link guidance systems
    • F41G7/32—Command link guidance systems for wire-guided missiles
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/20—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from infrared radiation only
    • H04N23/23—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from infrared radiation only from thermal infrared radiation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules

Definitions

  • the present invention relates to the integration of a thermal camera display unit, which enables display under day/night conditions by detecting the thermal differences radiated from the objects in the field of view by means of an infrared detector; does not get affected from glints; enables field of view to the user under bad weather conditions such as dust, smoke, fog and mist and all negative conditions of the battle field; and operates with internal and external power supply, into an antitank missile system
  • the thermal camera which has a scan type detector operating with a cooling tube in 8-12 ⁇ wavelength is used.
  • the existing scan type detectors require an extra moveable scanner mechanical piece when compared to the new type (focal plane array) detectors. Generating a two dimension vision from a single dimension detector array is performed by this scanner. For this, in generation of the image, a different column information coming from the thermal target is projected on the detector in every movement of the scanner. These information are converted into electrical signal and, by the help of cards, to video signal.
  • the range performance of the old generation thermal camera used in the antitank system cannot meet the range need of the antitank system.
  • the range of the cornet antitank system is 5.5 km but due to the performance decrease of the thermal camera it decreases to 4.5 km in dark environments. It is required to change and refill the cooling tubes of the old thermal camera used in cornet every 2.5-3 hours.
  • the European Patent Document no. EP0505078 an application in the state of the art, discloses a missile system which includes a launch tube mounted on a tripod or vehicle and an optical or thermal sighting and tracking assembly.
  • the sighting and tracking member which tracks the target optically and thermally, feeds guidance signals to the missile through a wire.
  • the Spanish Patent Document no. ES2109152 another application in the state of the art, discloses a system has an optical sight and a thermal camera for detection and tracking of targets during the day and during the night.
  • EP0548625 discloses a missile launcher mechanism having both a direct viewing optical system and a thermal or infrared imaging system for use in detecting a target and aiming the launcher.
  • the objective of the present invention is to provide a thermal camera which does not require cooling tubes.
  • Another objective of the present invention is to provide a thermal camera which does not require scanner set and control electronics.
  • Yet another objective of the present invention is to provide a thermal camera which meets the range performance of the cornet antitank missile system. Another objective of the present invention is to provide a thermal camera which has a small design of optical set. Still another objective of the present invention is to provide a thermal camera which has a light and small ergonomics. Yet another objective of the present invention is to provide a thermal camera which requires small volume.
  • Yet another objective of the present invention is to provide a thermal camera which acquires better view in humid environments.
  • Still another objective of the present invention is to provide a thermal camera which provides good performance in tracking thermal objects.
  • Another objective of the present invention is to provide a thermal camera which increases the detection possibility with wide angle of view.
  • Yet another objective of the present invention is to provide a thermal camera which spends low amount of energy.
  • Figure 1 is the schematic view of the thermal camera.
  • Figure 2 is the sectional view of the thermal camera.
  • a thermal camera which enables opportunity of vision under day/night conditions by detecting the thermal differences radiated from the objects in the field of view by means of an infrared detector essentially comprises;
  • At least one constantly focused objective (5) which has a plurality of lenses therein and enables to bring the image into focus
  • At least one OLED (4) which consumes low energy, is in a thin and light structure and on which the image is generated
  • At least one power card (6) which distributes the electrical energy taken from the battery to the connected units in the desired rate
  • At least one image processing control card (7) which enables to process the thermal image
  • - at least one infrared detector (8) which detects the radiations preferably between 3 ⁇ and 5 ⁇ wavelength by utilizing temperature differences
  • At least one cooler which can decrease the temperature of the detector preferably to 77K (Kelvin) and enables to obtain proper image from the detector.
  • the thermal camera (1) enables to detect, identify, recognize threads from long distance and to direct antitank missiles under every night/day conditions.
  • the thermal camera (1) is a second generation display device which makes detection in the middle wavelength infrared band, also named as 3 - 5 ⁇ band.
  • Infrared energy reaches the infrared detector (8) after passing through the constantly focused objective (5) which has optical elements (lenses, mirrors) inside.
  • the infrared detector (8) which is preferably in two dimensional matrixes structure and has at least 480x384 elements, converts the infrared energy into electrical signals.
  • the obtained electrical signal is primarily converted into digital data by the image processing control card (7) in the camera (1). Afterwards, it passes through the circuits that has image processing ability and is added upon the necessary symbols or network information. Lastly, the digital data constitute the video signal.
  • the software on the mage processing control card (7) makes the necessary control at every stage. Moreover, commands coming from the user through the control panel (2) or serial communication (RS232/RS422) are assessed in this software.
  • the generated thermal image is transferred to OLED (4) by means of the internal cabling.
  • the thermal image generated at OLED is transferred to the visor of the antitank missile system by means of the collimator set in the thermal camera (1).
  • the thermal camera (1) has internal and external power inputs. Internal power supply is performed by a battery preferably in the range of 7V-9V. The voltage coming from the battery enters into the power card (6) and after all the power requirements of the thermal camera (1) are produced on the power cards (6), they are distributed to the other units in the system by means of the connectors on the image process control card (7). As the system has no need for protection of interface standard (MIL STD1275D) used in the defense industry the internal power input, the filter card (3) is not operated.
  • MIL STD1275D interface standard
  • the thermal camera (1) can also operate by means of an external power supply preferably in the range of 12V-33V.
  • the external power supply enters into the filter card (3) and produces a voltage of 7V for the power card (6), having provided the MIL-STD 1275D protection.
  • the power card (6) all the power requirements of all the units of the system are produced with the filtered voltage coming from the filter card (3) and they are distributed to the other units in the system by means of the connectors on the image process control card (7).
  • the motor driver card in the thermal camera (1) is used in the process of changing the view point of the optical set and of controlling focuses. Moreover, the cabling set and the flex in the thermal camera (1) enable the communication and power transfer between the units.
  • the thermal camera (1) has a high range performance by means of using infrared cooling detector (8) which operates in 3-5 ⁇ wavelength.
  • the optical members in the thermal camera (1) enable to transfer the image to the user interface (visor) of the antitank missile system. It provides a wide angle of view in order to make fast target scanning. Moreover, narrow angle of view is also present in order to see a distant object easily.
  • visor user interface
  • By antitank system shooting can be done from middle angle of view. In this angle of view, enlarging the daytime optic of the antitank missile system is the same as the enlargement of the thermal image. + Hence, the user can easily use the thermal image in the antitank visor during shootings.
  • the image generated at the thermal camera (1) is easily transferred to the monitor or another imaging unit by means of the "image cable".
  • the skills of the external programs are designed such that the thermal camera (1) will not necessarily be opened.
  • the invention can not be limited to the examples described herein and it is essentially as defined in the claims.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Studio Devices (AREA)
  • Closed-Circuit Television Systems (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Radiation Pyrometers (AREA)
  • Accessories Of Cameras (AREA)

Abstract

La présente invention concerne l'intégration d'une unité d'affichage de caméra thermique, qui permet un affichage en conditions diurnes/nocturnes en détectant les différences thermiques émises par les objets se trouvant dans le champ de vision au moyen d'un détecteur infrarouge ; sur laquelle les scintillements n'ont pas d'incidence ; qui procure un champ de vision à l'utilisateur dans de mauvaises conditions météorologiques, telles que la poussière, la fumée, le brouillard, la brume et l'ensemble des conditions négatives pouvant se présenter sur le champ de bataille ; et fonctionne avec une alimentation interne et externe, dans un système de missiles antichars. La caméra thermique (1) selon l'invention permet de détecter, d'identifier, de reconnaître des menaces depuis de longues distances et de diriger des missiles antichars en toutes conditions diurnes/nocturnes.
PCT/IB2013/052793 2012-07-17 2013-04-08 Caméra thermique WO2014013349A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
MA37779A MA20150368A1 (fr) 2012-07-17 2013-04-08 Caméra thermique

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2012/08355 2012-07-17
TR201208355 2012-07-17

Publications (2)

Publication Number Publication Date
WO2014013349A2 true WO2014013349A2 (fr) 2014-01-23
WO2014013349A3 WO2014013349A3 (fr) 2014-05-01

Family

ID=49725162

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2013/052793 WO2014013349A2 (fr) 2012-07-17 2013-04-08 Caméra thermique

Country Status (2)

Country Link
MA (1) MA20150368A1 (fr)
WO (1) WO2014013349A2 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0505078A1 (fr) 1991-03-22 1992-09-23 Hughes Aircraft Company Assemblage électronique de guidage de missile pour lanceur portable de missile guidé
EP0548625A1 (fr) 1991-12-09 1993-06-30 Hughes Aircraft Company Système de visualisation pour observation directe et en infrarouge pour une base portable de lancement de fusée
ES2109152A1 (es) 1995-03-08 1998-01-01 Nacional De Optica S A Equipo de vision y guiado para lanzadores de misiles.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4862002A (en) * 1988-05-31 1989-08-29 Wang Samuel C Multiple channel readout circuit optimized for a cryogenically operated IR sensor head
IL158245A0 (en) * 2003-10-02 2004-08-31 Opgal Ltd A flir camera having fov vs. sensitivity control
US7307793B2 (en) * 2004-07-02 2007-12-11 Insight Technology, Inc. Fusion night vision system
US20120098971A1 (en) * 2010-10-22 2012-04-26 Flir Systems, Inc. Infrared binocular system with dual diopter adjustment

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0505078A1 (fr) 1991-03-22 1992-09-23 Hughes Aircraft Company Assemblage électronique de guidage de missile pour lanceur portable de missile guidé
EP0548625A1 (fr) 1991-12-09 1993-06-30 Hughes Aircraft Company Système de visualisation pour observation directe et en infrarouge pour une base portable de lancement de fusée
ES2109152A1 (es) 1995-03-08 1998-01-01 Nacional De Optica S A Equipo de vision y guiado para lanzadores de misiles.

Also Published As

Publication number Publication date
WO2014013349A3 (fr) 2014-05-01
MA20150368A1 (fr) 2015-10-30

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