CN113060284A - Unmanned aerial vehicle with life buoy throwing function - Google Patents
Unmanned aerial vehicle with life buoy throwing function Download PDFInfo
- Publication number
- CN113060284A CN113060284A CN202110401917.2A CN202110401917A CN113060284A CN 113060284 A CN113060284 A CN 113060284A CN 202110401917 A CN202110401917 A CN 202110401917A CN 113060284 A CN113060284 A CN 113060284A
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- aerial vehicle
- life buoy
- rescue
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 230000007246 mechanism Effects 0.000 claims abstract description 15
- 206010013647 Drowning Diseases 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 12
- 238000010191 image analysis Methods 0.000 claims description 12
- 230000009471 action Effects 0.000 claims description 8
- 230000000712 assembly Effects 0.000 claims description 8
- 238000000429 assembly Methods 0.000 claims description 8
- 238000004458 analytical method Methods 0.000 claims description 6
- 230000003993 interaction Effects 0.000 claims description 6
- 238000005286 illumination Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D1/00—Dropping, ejecting, releasing, or receiving articles, liquids, or the like, in flight
- B64D1/02—Dropping, ejecting, or releasing articles
-
- 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
- B63C9/00—Life-saving in water
- B63C9/01—Air-sea rescue devices, i.e. equipment carried by, and capable of being dropped from, an aircraft
-
- 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
- B63C9/00—Life-saving in water
- B63C9/08—Life-buoys, e.g. rings; Life-belts, jackets, suits, or the like
- B63C9/13—Life-buoys, e.g. rings; Life-belts, jackets, suits, or the like attachable to body member, e.g. arm, neck, head or waist
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Alarm Systems (AREA)
- Emergency Lowering Means (AREA)
Abstract
The invention discloses an unmanned aerial vehicle with a life buoy throwing function, which comprises: an unmanned aerial vehicle body; the life buoy launching system is positioned in the unmanned aerial vehicle body and used for generating a control instruction and a launching instruction according to the rescue condition and the position information of the person falling into the water, so that the unmanned aerial vehicle is controlled to fly and the life buoy is launched in a positioning mode; the throwing mechanism is fixedly connected to the bottom of the unmanned aerial vehicle body and used for throwing the lifebuoy according to a throwing instruction of the lifebuoy throwing system. According to the invention, the rescue condition information and the position information of the person falling into the water in the rescue area are obtained through the life buoy throwing system, so that the unmanned aerial vehicle is controlled to fly above the person falling into the water, the life buoy is positioned and thrown, and the rescue speed is improved.
Description
Technical Field
The invention relates to the technical field of unmanned aerial vehicles, in particular to a marine intelligent unmanned aerial vehicle with a life buoy throwing function.
Background
An unmanned plane is called as an unmanned plane for short, and is an unmanned plane operated by utilizing radio remote control equipment and a self-contained program control device, a cockpit is arranged on the unmanned plane, but an autopilot, a program control device and other equipment are installed on the unmanned plane, and tracking, positioning, remote control, remote measurement and digital transmission are carried out on the unmanned plane by personnel on the ground, a naval vessel or a mother machine remote control station through radar and other equipment.
Offshore intelligent unmanned aerial vehicle is used for work such as rescue exploration usually, and current offshore intelligent unmanned aerial vehicle does not possess the function of puting in to the life buoy at the in-process that uses, and the user that needs usually goes on with the help of professional equipment, or drives the ship and rescues, because the person of falling into the water is far away, rescues too long and can lead to the successful probability of rescue to descend, so current unmanned aerial vehicle needs a urgent need one kind can carry out the function of puting in fast to the life buoy.
Disclosure of Invention
The invention provides an unmanned aerial vehicle with a life buoy throwing function, wherein rescue condition information and position information of a person falling into the water in a rescue area are obtained through a life buoy throwing system, so that the unmanned aerial vehicle is controlled to fly above the person falling into the water, the life buoy is positioned and thrown, and the rescue speed is improved.
In order to achieve the above object, the present invention provides an unmanned aerial vehicle with a life buoy throwing function, comprising:
an unmanned aerial vehicle body;
the life buoy launching system is positioned in the unmanned aerial vehicle body and used for generating a control instruction and a launching instruction according to the rescue condition and the position information of the person falling into the water, so that the unmanned aerial vehicle is controlled to fly and the life buoy is launched in a positioning mode;
the throwing mechanism is fixedly connected to the bottom of the unmanned aerial vehicle body and used for throwing the lifebuoy according to a throwing instruction of the lifebuoy throwing system.
Further, the surface of unmanned aerial vehicle organism is equipped with a plurality of supports, be equipped with a plurality of flash lights on the support to carry out the suggestion of position to the rescue personnel in a distance.
Further, the bottom of unmanned aerial vehicle organism is equipped with a plurality of landing legs, the bottom fixedly connected with of landing leg floats the structure to guarantee that unmanned aerial vehicle floats in the sea after falling.
Further, the life buoy delivery system comprises:
the image processing module is used for acquiring images in the rescue area in real time and analyzing whether the drowning person in the rescue area needs to be rescued or not so as to generate rescue condition information of the drowning person;
the GIS geographic information module is used for positioning the geographic position of the drowning person in the rescue area so as to generate the position information of the drowning person;
the control terminal is respectively connected with the image processing module and the GIS geographic information module and is used for generating a control instruction and a release instruction according to the rescue condition information of the person falling into the water and the position information of the person falling into the water;
the driving module is connected with the control terminal and used for driving the unmanned aerial vehicle to fly according to the control instruction;
and the life buoy releasing module is connected with the control terminal and used for driving the releasing mechanism to release life buoys according to the releasing instruction.
Further, the life buoy delivery system further comprises:
the power supply module is used for providing electric energy for the life buoy throwing system;
and the light control module is respectively connected with the control terminal and the flash lamp installed on the unmanned aerial vehicle body and used for controlling the operation of the flash lamp according to the control instruction of the control terminal.
Furthermore, the life buoy throwing system also comprises a wireless transmission module and a remote control module which are connected with each other; the wireless transmission module is connected with the control terminal, the remote control module is connected with the user side, and the wireless transmission module and the remote control module are used for achieving information interaction and instruction interaction between the user side and the control terminal.
Further, the image processing module includes:
the image acquisition module is used for acquiring images in the rescue area in real time;
the image analysis module is connected with the image acquisition module and is used for analyzing the image to judge whether the person falling into the water in the rescue area is rescued or not;
the information feedback module is connected with the image analysis module and used for sending the analysis result of the image analysis module to the control terminal;
and the storage module is connected with the image analysis module and is used for storing the acquired image and the analysis result thereof.
Further, the image acquisition module contains and installs camera and the lighting unit in unmanned aerial vehicle organism bottom, the lighting unit is used for the camera illumination to rescue at night.
Further, the release mechanism includes:
the top of the shell is fixedly connected with the bottom of the unmanned aerial vehicle body;
the motor is fixed at the first end of the shell and is also connected with a life buoy throwing module in the life buoy throwing system;
the threaded rod is connected with the motor, is fixedly connected with the second end of the shell through a bearing, and rotates under the action of the motor;
the two thread sleeves are respectively arranged on the threaded rod, and move back to back under the action of the threaded rod;
the two connecting rod assemblies are fixedly arranged at the bottom of each threaded sleeve respectively, and move in the same direction along with the threaded sleeves;
and the two clamps are fixedly arranged at the bottom of each connecting rod assembly respectively and are used for clamping the lifebuoy, and the two clamps move along with the connecting rod assemblies so as to throw the lifebuoy.
Further, the thread forming directions of the inner walls of the two thread sleeves are opposite, and the thread intervals are equal.
Further, the first end of casing is equipped with rotatory hole, the threaded rod pass through rotatory hole with motor fixed connection.
Furthermore, the bottom of the shell is provided with a moving hole, and the connecting rod assembly is connected with the threaded sleeve through the moving hole.
The invention has the following advantages:
according to the invention, the rescue condition information and the position information of the person falling into the water in the rescue area are obtained through the life buoy throwing system, so that the unmanned aerial vehicle is controlled to fly above the person falling into the water, the life buoy is positioned and thrown, and the rescue speed is improved; according to the invention, the flash lamp and the floating structure are arranged on the unmanned aerial vehicle body, so that the position of a person falling into water by a rescue worker is prompted conveniently, the unmanned aerial vehicle is ensured to float on the sea surface when falling under a severe environment, and the service life of the unmanned aerial vehicle is prolonged. In addition, in the throwing mechanism, the threaded rod is fixedly connected with the motor in the throwing mechanism through the rotating hole arranged on the shell, so that the lifebuoy is prevented from being released by the clamp due to the clamping phenomenon of the threaded rod and the shell, and the lifebuoy is guaranteed to be thrown in a positioning mode.
Drawings
Fig. 1 is a schematic structural view of the drone of the present invention;
FIG. 2 is a schematic structural view of a bracket and a flashlight;
FIG. 3 is a schematic view of the structure of the legs and the floating structure;
fig. 4 is a schematic structural diagram of a life buoy delivery system;
FIG. 5 is a schematic structural diagram of the dispensing mechanism;
fig. 6 is a schematic structural view of the jig.
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples. Advantages and features of the present invention will become apparent from the following description and from the claims. It is to be noted that the drawings are in a very simplified form and are all used in a non-precise ratio for the purpose of facilitating and distinctly aiding in the description of the embodiments of the invention.
As shown in fig. 1, an unmanned aerial vehicle with life buoy throwing function includes:
an unmanned aerial vehicle body 1;
the life buoy launching system 2 is positioned in the unmanned aerial vehicle body 1, and the life buoy launching system 2 is used for generating a control instruction and a launching instruction according to the rescue condition and the position information of a person falling into the water, so that the unmanned aerial vehicle is controlled to fly and the life buoy is launched in a positioning mode;
fixed connection is at the input mechanism 5 of 1 bottom of unmanned aerial vehicle organism, input mechanism 5 is used for the basis life buoy 6 is put in to life buoy input system 2's input instruction.
As shown in fig. 2-3, the surface of the unmanned aerial vehicle body 1 is provided with a plurality of supports 3, and one end of each support 3 far away from the unmanned aerial vehicle body 1 is fixedly connected with a wing 4. And a plurality of flash lamps 13 are arranged on the support 3 so as to prompt the position of the rescue worker. Preferably, the flashlights 13 are uniformly distributed on the surface of the support 3. Preferably, the flash lamp 13 is an LED tri-color lamp. The bottom of unmanned aerial vehicle organism 1 is equipped with a plurality of landing legs 11, the bottom fixedly connected with of landing leg 11 floats structure 12. Preferably, the floating structure 12 employs air bags. Through the use of the supporting leg 11 floating structure 12, the unmanned aerial vehicle can float on the sea surface when falling under the adverse environment instead of directly sinking in the sea, and the service life of the unmanned aerial vehicle is prolonged.
As shown in fig. 4, the life buoy releasing system 2 includes:
a power supply module 201 for supplying power to the life buoy delivery system 2;
the image processing module 202 is used for acquiring images in the rescue area in real time and analyzing whether the drowning person in the rescue area needs to be rescued or not so as to generate rescue condition information of the drowning person;
a GIS geographic information module 203 for locating the geographic location of the drowning person in the rescue area, thereby generating location information of the drowning person;
the control terminal 204 is respectively connected with the image processing module 202 and the GIS geographic information module 203, and is used for generating a control instruction and a release instruction according to the rescue condition information of the person falling into the water and the position information of the person falling into the water;
the driving module 205 is connected with the control terminal 204 and is used for driving the unmanned aerial vehicle to fly according to the control instruction; the driving module 205 is connected with the wings 4 of the unmanned aerial vehicle body 1, so as to control the unmanned aerial vehicle to fly above a person falling into water;
a life buoy releasing module 206, connected to the control terminal 204, for driving the releasing mechanism 5 to release the life buoy 6 according to the releasing instruction;
and the light control module 207 is respectively connected with the control terminal 204 and the flash lamp 13 installed on the unmanned aerial vehicle body 1, and is used for controlling the operation of the flash lamp 13 according to the control instruction.
Furthermore, the life buoy delivery system 2 further comprises: a wireless transmission module 208 and a remote control module 209 connected to each other; the wireless transmission module 208 is connected with the control terminal 204, the remote control module 209 is connected with a user side, and the wireless transmission module 208 and the remote control module 209 are used for realizing information interaction and instruction interaction between the user side and the life buoy launching system 2. Specifically, the remote control module 209 transmits the image acquired by the image processing module 202 to the user side through the wireless transmission module 208 and the remote control module 209, so that the rescuers can observe the image of the rescue area and the rescue situation in real time; the remote control module 209 also receives a control instruction and a release instruction sent by the user side through the wireless transmission module 208 and the remote control module 209, so as to control the unmanned aerial vehicle to fly to a rescue area and position and release the life buoy 6.
The image processing module 202 includes:
an image acquisition module 210 for acquiring images within the rescue area in real time; the image acquisition module 210 comprises a camera 7 and an illumination unit 8 which are installed at the bottom of the unmanned aerial vehicle body 1, wherein the illumination unit 8 is used for illuminating the camera 7 so as to facilitate night rescue; the lighting unit 8 is further connected to the light control module 207, and the light control module 207 is further configured to control the operation of the lighting unit 8 according to a control instruction;
the image analysis module 211 is connected to the image acquisition module 210, and is configured to analyze the image to determine whether to rescue a person falling into water in a rescue area;
an information feedback module 212, connected to the image analysis module 211, for sending an analysis result of the image analysis module 211 to the control terminal 204;
a storage module 213, connected to the image analysis module 211, for storing the acquired image and the analysis result.
As shown in fig. 5 to 6, the releasing mechanism 5 includes:
the top of the shell 501 is fixedly connected with the bottom of the unmanned aerial vehicle body 1;
a motor 502 fixed at the first end of the housing 501, wherein the motor 502 is further connected with the life buoy releasing module 206 in the life buoy releasing system 2; the life buoy putting module 206 is used for controlling the motor 502 to operate;
a threaded rod 503 connected with the motor 502, wherein the threaded rod 503 is also fixedly connected with the second end of the shell 501 through a bearing 508; the threaded rod 503 is located in the shell 501, a rotating hole 10 matched with the threaded rod 503 is formed in the first end of the shell 501, and the first end of the threaded rod 503 is fixedly connected with the motor 502 through the rotating hole 10, so that the phenomenon that the threaded rod 503 and the shell 501 are locked is avoided, and the rotating speed of the threaded rod 503 is improved; a second end of the threaded rod 503 is fixedly connected with an inner ring of the bearing 508, an outer ring of the bearing 508 is fixed at a second end of the shell 501, and when the motor 502 operates, the threaded rod 503 rotates under the action of the motor 502;
two threaded sleeves 504 respectively mounted on the threaded rods 503; the thread forming directions of the inner walls of the two thread sleeves 504 are opposite, the thread intervals are equal, and the two thread sleeves 504 move back to the threaded rod 503 at equal intervals under the action of the threaded rod 503;
the two connecting rod assemblies are fixedly arranged at the bottom of each threaded sleeve 504 respectively, and move synchronously along with the threaded sleeves 504, namely the two connecting rod assemblies move back to back at equal distance under the action of the two threaded sleeves 504; the connecting rod assembly comprises a moving rod 505 and a connecting rod 506, the bottom of the shell 501 is provided with a moving hole 9, the width of the moving hole 9 is matched with the size of the moving rod 505, one end of the moving rod 505 penetrates through the moving hole 9 to be fixedly connected with the threaded sleeve 504, and the other end of the moving rod 505 is fixedly connected with the connecting rod 506;
two clamps 507 fixedly installed at the bottom of each connecting rod assembly respectively for clamping the lifebuoy 6; the clamps 507 are semicircular, and the two clamps 507 form a circular structure to hang the lifebuoy 6; when the life buoy 6 is thrown, the clamps 507 move synchronously along with the movement of the connecting rod assemblies, namely the two clamps 507 move back to the same distance under the action of the connecting rod assemblies, so that the life buoy 6 is released.
The working principle of the invention is as follows:
the life buoy releasing system 2 collects images in the rescue area and analyzes whether rescue is carried out or not to generate rescue condition information of people falling into the water, and meanwhile, the collected images are wirelessly transmitted to a user side, so that rescue personnel can observe the images and the rescue conditions of the rescue area in real time. The life buoy launching system 2 generates a control instruction and a launching instruction according to the rescue condition information and the position information of the person falling into the water, and respectively sends the control instruction and the launching instruction to the driving module 205, the life buoy launching module 206 and the light control module 207; the driving module 205 drives the wings 4 on the unmanned aerial vehicle body 1 to control the unmanned aerial vehicle to fly above a person falling into water; the life buoy releasing module 206 controls a motor 502 in the releasing mechanism 5 to operate, the motor 502 operates to drive the threaded rod 503 to rotate, two threaded sleeves 504 arranged on the threaded rod 503 move back to back at equal intervals and drive the moving assembly and a clamp 507 fixed at the bottom of the moving assembly to move back to back at equal intervals, the life buoy 6 falls off, the life buoy 6 is positioned and released, and the rescue efficiency is improved; the light control module 207 controls the operation of the flash lamp 13 installed on the unmanned aerial vehicle body 1, so as to prompt the position of a person falling into water. The life buoy launching system 2 is also used for receiving a control instruction and a launching instruction sent by the user side, and intelligent operation of the unmanned aerial vehicle is achieved. While the present invention has been described in detail with reference to the preferred embodiments, it should be understood that the above description should not be taken as limiting the invention. Various modifications and alterations to this invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be determined from the following claims.
Claims (10)
1. The utility model provides an unmanned aerial vehicle who possesses function of throwing life buoy which characterized in that contains:
an unmanned aerial vehicle body;
the life buoy launching system is positioned in the unmanned aerial vehicle body and used for generating a control instruction and a launching instruction according to the rescue condition and the position information of the person falling into the water, so that the unmanned aerial vehicle is controlled to fly and the life buoy is launched in a positioning mode;
the throwing mechanism is fixedly connected to the bottom of the unmanned aerial vehicle body and used for throwing the lifebuoy according to a throwing instruction of the lifebuoy throwing system.
2. The unmanned aerial vehicle of claim 1, wherein the surface of the unmanned aerial vehicle body is provided with a plurality of supports, and the supports are provided with a plurality of flash lamps so as to prompt the position of rescuers.
3. The unmanned aerial vehicle of claim 1, wherein the bottom of the unmanned aerial vehicle body is provided with a plurality of support legs, and floating structures are fixedly connected to the bottom of the support legs to ensure that the unmanned aerial vehicle floats on the sea surface after falling.
4. A drone as claimed in claim 1, wherein the life buoy launch system includes:
the image processing module is used for acquiring images in the rescue area in real time and analyzing whether the drowning person in the rescue area needs to be rescued or not so as to generate rescue condition information of the drowning person;
the GIS geographic information module is used for positioning the geographic position of the drowning person in the rescue area so as to generate the position information of the drowning person;
the control terminal is respectively connected with the image processing module and the GIS geographic information module and is used for generating a control instruction and a release instruction according to the rescue condition information of the person falling into the water and the position information of the person falling into the water;
the driving module is connected with the control terminal and used for driving the unmanned aerial vehicle to fly according to the control instruction;
and the life buoy releasing module is connected with the control terminal and used for driving the releasing mechanism to release life buoys according to the releasing instruction.
5. The drone of claim 4, wherein the life buoy launch system further comprises a power module, and a wireless transmission module, a remote control module, connected to each other; the power supply module is used for providing electric energy for the life buoy putting system; the wireless transmission module is connected with the control terminal, the remote control module is connected with the user side, and the wireless transmission module and the remote control module are used for achieving information interaction and instruction interaction between the user side and the control terminal.
6. The drone of claim 2, wherein the life buoy launch system further comprises: and the light control module is respectively connected with the control terminal and the flash lamp installed on the unmanned aerial vehicle body and used for controlling the operation of the flash lamp according to the control instruction of the control terminal.
7. The drone of claim 4, wherein the image processing module comprises:
the image acquisition module is used for acquiring images in the rescue area in real time;
the image analysis module is connected with the image acquisition module and is used for analyzing the image to judge whether the person falling into the water in the rescue area is rescued or not;
the information feedback module is connected with the image analysis module and used for sending the analysis result of the image analysis module to the control terminal;
and the storage module is connected with the image analysis module and is used for storing the acquired image and the analysis result thereof.
8. The drone of claim 7, wherein the image acquisition module comprises a camera mounted at the bottom of the drone body and a lighting unit for illuminating the camera for night rescue.
9. A drone according to claim 4, wherein the launch mechanism includes:
a housing;
the motor is fixed at the first end of the shell and is also connected with a life buoy throwing module in the life buoy throwing system;
the threaded rod is connected with the motor, is fixedly connected with the second end of the shell through a bearing, and rotates under the action of the motor;
the two thread sleeves are respectively arranged on the threaded rod, and move back to back under the action of the threaded rod;
the two connecting rod assemblies are fixedly arranged at the bottom of each threaded sleeve respectively, and move in the same direction along with the threaded sleeves;
and the two clamps are fixedly arranged at the bottom of each connecting rod assembly respectively and are used for clamping the lifebuoy, and the two clamps move along with the connecting rod assemblies so as to throw the lifebuoy.
10. The unmanned aerial vehicle of claim 9, wherein the first end of the housing is provided with a rotation hole, and the threaded rod is fixedly connected with the motor through the rotation hole; the bottom of the shell is provided with a moving hole, and the connecting rod assembly is connected with the threaded sleeve through the moving hole; the thread forming directions of the inner walls of the two thread sleeves are opposite, and the thread intervals are equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110401917.2A CN113060284A (en) | 2021-04-14 | 2021-04-14 | Unmanned aerial vehicle with life buoy throwing function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110401917.2A CN113060284A (en) | 2021-04-14 | 2021-04-14 | Unmanned aerial vehicle with life buoy throwing function |
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| Publication Number | Publication Date |
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| CN113060284A true CN113060284A (en) | 2021-07-02 |
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| CN202110401917.2A Pending CN113060284A (en) | 2021-04-14 | 2021-04-14 | Unmanned aerial vehicle with life buoy throwing function |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114148488A (en) * | 2021-12-28 | 2022-03-08 | 广东海洋大学 | Lifesaving device and lifesaving method for ship |
| CN115123494A (en) * | 2022-08-15 | 2022-09-30 | 威海海洋职业学院 | Unmanned aerial vehicle device for assisting marine life-saving |
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Application publication date: 20210702 |
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