EP4200202A1 - Use of an air-water drone for locating and identifying an object under water - Google Patents
Use of an air-water drone for locating and identifying an object under waterInfo
- Publication number
- EP4200202A1 EP4200202A1 EP21762652.2A EP21762652A EP4200202A1 EP 4200202 A1 EP4200202 A1 EP 4200202A1 EP 21762652 A EP21762652 A EP 21762652A EP 4200202 A1 EP4200202 A1 EP 4200202A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- water
- air
- drone
- sensor
- base station
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 85
- 239000002360 explosive Substances 0.000 claims description 31
- 238000004891 communication Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 10
- 230000009189 diving Effects 0.000 claims description 3
- 230000009182 swimming Effects 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000001960 triggered effect Effects 0.000 description 3
- 238000001069 Raman spectroscopy Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003909 pattern recognition Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
- B63C11/48—Means for searching for underwater objects
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63G—OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS; MINE-LAYING; MINE-SWEEPING; SUBMARINES; AIRCRAFT CARRIERS
- B63G7/00—Mine-sweeping; Vessels characterised thereby
- B63G7/02—Mine-sweeping means, Means for destroying mines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63G—OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS; MINE-LAYING; MINE-SWEEPING; SUBMARINES; AIRCRAFT CARRIERS
- B63G8/00—Underwater vessels, e.g. submarines; Equipment specially adapted therefor
- B63G8/001—Underwater vessels adapted for special purposes, e.g. unmanned underwater vessels; Equipment specially adapted therefor, e.g. docking stations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U10/00—Type of UAV
- B64U10/10—Rotorcrafts
- B64U10/13—Flying platforms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63G—OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS; MINE-LAYING; MINE-SWEEPING; SUBMARINES; AIRCRAFT CARRIERS
- B63G7/00—Mine-sweeping; Vessels characterised thereby
- B63G2007/005—Unmanned autonomously operating mine sweeping vessels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U2101/00—UAVs specially adapted for particular uses or applications
- B64U2101/15—UAVs specially adapted for particular uses or applications for conventional or electronic warfare
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U2101/00—UAVs specially adapted for particular uses or applications
- B64U2101/20—UAVs specially adapted for particular uses or applications for use as communications relays, e.g. high-altitude platforms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U2101/00—UAVs specially adapted for particular uses or applications
- B64U2101/30—UAVs specially adapted for particular uses or applications for imaging, photography or videography
Definitions
- the invention relates to the detection of objects, in particular mines, in shallow water, i.e. up to a maximum water depth of 5 metres.
- the object of the present invention is therefore to create an improved concept for finding objects in the water.
- Exemplary embodiments demonstrate the use of an air-to-water drone to locate and identify an underwater object.
- Air-to-water drones are well known. These can fly like a drone, but they can also land on water and optionally dive into the water.
- the air-to-water drone now flies over an area where the object is suspected to locate a position of the object using a sensor.
- the sensor is e.g. a camera or a laser scanner.
- a method for locating an object in the water by means of a camera flying over the object is in German
- Patent application with file number 10 2019 214 139.0 is disclosed, the content of which is hereby incorporated into this patent application.
- the air-to-water drone's sensor or another sensor is immersed in the water at the located position to identify the object. If the additional sensor is used, it is, for example, of the same type as the sensor with which the object is localized.
- Both sensors can be one camera, with the camera of the other sensor being optimized for underwater recordings and thus, for example, not outputting color images but grayscale images or including a ToF camera (time of flight) while the camera of the sensor, for example, includes a spectrally resolving camera (cf. aforementioned German patent application).
- the sensor or the additional sensor for identifying the object can be immersed by landing the drone on the water, by submerging the drone in the water or by lowering the sensor used, for example on a rope. Submerging the entire drone has the advantage that the drone is no longer exposed to the waves and the risk of inaccurate sensor data, such as blurred camera images, is reduced. This increases the quality of the sensor data.
- the drone takes image data (a sequence of photos or a video) from a region of water.
- image data a sequence of photos or a video
- the referenced method described above can be used for this.
- the image data can be analyzed or evaluated automatically (ie, for example, using a pattern recognition algorithm) or manually (ie, by a human) in order to localize the object. That is, the object is detected and the position of the object is determined.
- this image data may not be sufficient to uniquely identify the object.
- the localization sensor cannot be optimized for recordings in air and in water at the same time. Furthermore, reflections can occur at the interface between air and water, ie at the transition from one medium to the other medium.
- the sensor or another sensor optimized for underwater recordings can be immersed in the water to create further image data of the object.
- This additional image data from the object then typically has a better quality than the image data that was recorded when the object was flown over.
- a decision can then be made (again automatically or manually) as to whether the suspected object is actually the object (positive identification), for example whether a mine has actually been found.
- the air-to-water drone may also enter the water when the object is positively identified to attach an explosive charge to the object.
- the explosive charge can be permanently attached to the drone so that the drone is destroyed when the explosive charge detonates.
- the explosive charge can also be detachably connected to the drone, so that the drone can move away from the mine before the explosive charge is destroyed.
- the drone can be connected to the explosive charge by means of a cable, or the explosive charge can be triggered by a timer after activation.
- the explosive charge can also carry a radio beacon that is triggered. The charge is then triggered directly by radio.
- the senor for locating, the (further) sensor for identification or a second further sensor can be used to check whether the explosive charge has been correctly attached to the object.
- the corresponding sensor can, for example, record image data again, which are (automatically or manually) evaluated. It can thus be checked whether the explosive charge can be safely detonated. This can be done while the drone is still underwater.
- the drone has an underwater communication means in order to be able to communicate with a base station while diving, ie for example when submerging, in particular during or after the explosive charge is attached to the object or during the identification of the object.
- the underwater means of communication is, for example, a wire that permanently connects the drone to the base station.
- the drone can also have a buoy that is attached to the drone in such a way that the buoy floats on the water while the drone is diving.
- An antenna for example, is arranged on the buoy, which is designed to set up a wireless connection with a base station and to enable communication between the air-water drone and the base station enable.
- the antenna is also connected to the drone, for example by means of a cable.
- the underwater means of communication thus makes it possible to maintain communication with the base station, for example, even if another means of communication of the drone is completely covered with water and therefore cannot be used.
- a further exemplary embodiment discloses that the drone uses the underwater communication means to send sensor data from the sensor used to check whether the explosive charge has been correctly attached to the object to the base station.
- an exemplary embodiment shows that the air-to-water drone is designed to receive an ignition command from a base station and to detonate the explosive charge as a function of the ignition command. To do this, the drone ignites the explosive charge or forwards the ignition command to the explosive charge.
- a watercraft or other platform on the water or on land can be used as a base station.
- the drone can also be launched from there.
- an unmanned ship can be used as a base station. Then the operation can be performed completely autonomously. The ship moves to a specified target area, the drone automatically searches the target area for the object, especially mines, localizes and identifies them automatically.
- the drone can then automatically attach the explosive charge to the object.
- the explosive charge can then also be automatically detonated, but it is currently preferred if the detonation command is still issued manually by an operator.
- the operator can send the ignition command, for example, from an operations center to the base station, which automatically forwards the ignition command to the drone.
- the base station then acts as a relay for the ignition command.
- the method includes the steps of: flying over an area where the object is suspected to locate a position of the object using a camera; Submersing the camera or another camera in the water at the located position to identify the object.
- an air-to-water drone for locating and identifying an underwater object.
- the drone has a sensor, optionally another sensor and a swimming buoy.
- the object can be localized from the air by means of the sensor, in particular a camera.
- the sensor or the additional, in particular similar, sensor is designed to identify the object under water.
- the swimming buoy floats on the water surface and establishes a data connection with the air-water drone.
- the buoy has an antenna that is designed to set up a wireless connection to a base station and to enable communication between the air-water drone and the base station (via the data connection and the wireless connection).
- Such a drone can also receive data such as an ignition command for an explosive charge under water.
- FIG. 1 a schematic representation of an air-water drone with a swimming buoy.
- the drone 20 has a sensor 22 with which the drone 20 can detect an object under water.
- the sensor 22 is, for example, a camera with which the drone can detect the object 24 from the air and in the water.
- a first camera or a laser scanner can be arranged on the drone in order to record the object 24 from the air.
- a second camera, different from the first camera, can be optimized for taking pictures of the object under water.
- a metal detector or a (Raman) spectroscope for example, can also be used as a (further) sensor to identify the object 24 .
- a metal object can be identified with the metal detector, e.g. if it is a mine.
- the (Raman) spectroscope a chemical analysis can be carried out, e.g. for residual amounts of explosives.
- Other methods for detecting the explosive are also conceivable. This is also advantageous for detecting mines.
- the air-water drone 20 also has a floating buoy 26 .
- the buoy 26 also includes an antenna 28.
- the antenna 28 is connected (electrically and mechanically) to the drone 20, in particular by a cable 30.
- a data connection is established between the antenna and the drone by means of the cable 30 .
- the drone 20 may include a retractor mechanism (not shown) that retracts the cable 30 automatically.
- the force that the retractor mechanism exerts to retract the cable 30 is chosen to be smaller than the buoyancy force of the buoy 26 when the drone 20 is immersed in the water 32 .
- the cable 30 automatically uncoils when the drone 20 descends and uncoils again when the drone 20 resurfaces.
- the buoy 26 always floats on the water surface.
- the cable 30 (also referred to as a wire) can be connected directly to the base station 36.
- the base station 36 advantageously has the roll-up mechanism as this is larger than the drone and can therefore handle longer cable lengths better.
- a wireless connection 34 to a base station 36 can now be established by means of the antenna 28 .
- the base station 36 is shown here as a ship.
- the base station also has a corresponding antenna 38.
- the communication data received can be routed from the antenna 28 via the cable 30 to a computing unit (not shown) of the drone.
- the data can be sent from the computing unit to the base station 36 via the cable 30 and the antenna 28 .
- image data or sensor data recorded by the sensor 22 (or other sensors) can be sent to the base station 36.
- image data or sensor data recorded by the sensor 22 can be sent to the base station 36.
- Navigation instructions or an ignition command for detonating an explosive charge are sent from the base station 36 to the drone 20.
- the air-water drone shown communication with the base station is also possible when the air-water drone is under water. This is particularly relevant when the air-to-water drone 20 with an onboard explosive charge is to be attached to a mine and the explosive charge is to be remotely detonated to detonate the mine.
- aspects have been described in the context of a device, it is understood that these aspects also represent a description of the corresponding method, so that a block or a component of a device is also to be understood as a corresponding method step or as a feature of a method step. Similarly, aspects described in connection with or as a method step also constitute a description of a corresponding block or detail or feature of a corresponding device.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Remote Sensing (AREA)
- Ocean & Marine Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102020210449.2A DE102020210449A1 (en) | 2020-08-18 | 2020-08-18 | Using an air-to-water drone to locate and identify an underwater object |
PCT/EP2021/072323 WO2022038005A1 (en) | 2020-08-18 | 2021-08-10 | Use of an air-water drone for locating and identifying an object under water |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4200202A1 true EP4200202A1 (en) | 2023-06-28 |
Family
ID=77543487
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21762652.2A Pending EP4200202A1 (en) | 2020-08-18 | 2021-08-10 | Use of an air-water drone for locating and identifying an object under water |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP4200202A1 (en) |
DE (1) | DE102020210449A1 (en) |
WO (1) | WO2022038005A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102018217211A1 (en) * | 2018-10-09 | 2020-04-09 | Siemens Aktiengesellschaft | Drone for triggering sea mines with an electric drive |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004062122B3 (en) | 2004-12-23 | 2005-12-22 | Atlas Elektronik Gmbh | Detecting and neutralizing mines in sea, by steering second underwater vehicle to object marked by first vehicle, and activating neutralizing unit |
FR2882339B1 (en) * | 2005-02-21 | 2008-09-12 | Dcn Sa | METHOD AND DEVICE FOR IDENTIFYING AND NEUTRALIZING AN UNDERWATER MINE |
US20110226174A1 (en) | 2008-06-16 | 2011-09-22 | Aurora Flight Sciences Corporation | Combined submersible vessel and unmanned aerial vehicle |
DE102012006566A1 (en) | 2012-03-30 | 2013-10-02 | Atlas Elektronik Gmbh | Method of detecting sea mines and marine detection system |
US20160376000A1 (en) * | 2014-07-10 | 2016-12-29 | Christoph Kohstall | Submersible unmanned aerial vehicles and associated systems and methods |
WO2017094635A1 (en) | 2015-12-01 | 2017-06-08 | 株式会社プロドローン | Underwater search system |
US10019002B2 (en) * | 2016-10-13 | 2018-07-10 | Navico Holding As | Unmanned vehicle control and operation in a marine environment |
KR101835107B1 (en) * | 2016-10-13 | 2018-04-19 | (주)지이에스 | A Fish Detecting Drone |
WO2019232617A1 (en) * | 2018-06-05 | 2019-12-12 | Igloo Innovations Incorporated | Wirelessly controlled flying and submerging vehicle |
DE102019005870A1 (en) | 2019-08-20 | 2021-02-25 | Bundesrepublik Deutschland, vertreten durch das Bundesministerium der Verteidigung, dieses vertreten durch das Bundesamt für Ausrüstung, Informationstechnik und Nutzung der Bundeswehr | Drift mine destruction system |
DE102019214139B4 (en) | 2019-09-17 | 2021-07-29 | Atlas Elektronik Gmbh | Optical mine detection in shallow water |
-
2020
- 2020-08-18 DE DE102020210449.2A patent/DE102020210449A1/en active Pending
-
2021
- 2021-08-10 EP EP21762652.2A patent/EP4200202A1/en active Pending
- 2021-08-10 WO PCT/EP2021/072323 patent/WO2022038005A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
DE102020210449A1 (en) | 2022-02-24 |
WO2022038005A1 (en) | 2022-02-24 |
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