KR102305857B1 - Apparatus for detecting target object and method for detecting target object - Google Patents

Abstract

The present invention relates to a target detection apparatus and a target detection method. A target detection apparatus for detecting a target in water includes a floating body having a communicator, and floating on the surface of the sea; a detection part disposed in the water to detect a target; a buoyancy part connected between the floating body and the detection part, and into which a buoyancy material having a smaller specific gravity than water is introduced to adjust the buoyancy force to move up and down; and a control part for controlling the buoyancy part.

Description

Target detection apparatus and target detection method {Apparatus for detecting target object and method for detecting target object}

The present invention relates to a target detection apparatus and a target detection method, and more particularly, to a target detection apparatus and a target detection method capable of changing a detection position by generating a buoyancy force therein.

In general, sonobuoy is a compound word of sona and buoy (ie, buoy), and is a device that is dropped from an aircraft into the sea and detects an underwater target using sound wave characteristics. Sonobuoys are also called sonar buoys because they contain a buoy to allow them to drift at sea level, along with a device for target detection. Such a sonobuoy may be operated by remote control from an aircraft or land control station, or may be operated by inputting a preset value to the sonobuoy and autonomously operating through the inputted setting value. For example, the sonobuoy may include a control PC for controlling the unmanned aerial vehicle, measurement equipment capable of measuring the surrounding conditions, and a communication device for transmitting measurement information through RF communication. Accordingly, the sonobuoy may sense a sea situation and respond according to the sensed situation. Therefore, the sonobuoy is required in various fields such as the civilian field, the industrial field, and the military field.

Conventionally, after a sonobuoy is released from an aircraft, it detects an underwater target only for a short period of operation (eg, up to 8 hours). If the sonobuoy's operating time expires, the sonobuoy may lose its ability to detect targets and be left at sea. That is, since the sonobuoy is a one-time consumable, it is difficult to detect an underwater target for a long period of time. In addition, the sono buoy has a disadvantage in that it is difficult to provide flexible operability according to a seabed environment and operational purpose, etc., since the sonobuoy performs target detection by locating an acoustic sensor at a predetermined depth of water. Accordingly, there is a need for a sonobuoy device in which the above problems are improved.

US 10-2012-0089977 A

The present invention relates to a target detection device and a target detection method capable of generating buoyancy therein.

The present invention relates to a target detection apparatus and a target detection method capable of changing a detection position by adjusting the depth of water in the water through generated buoyancy.

The present invention is a target detection device for detecting a target in the water, having a communicator therein, a floating body for floating on the sea level; a detection unit disposed in the water to detect a target; a buoyancy unit connected between the floating body and the detection unit, and into which a buoyancy material having a smaller specific gravity than water is introduced therein so that the buoyancy is adjusted and moved up and down; and a control unit for controlling the buoyancy unit.

The present invention is a target detection device for detecting a target in the water, having a communicator therein, a floating body for floating on the sea level; a detection unit disposed in the water to detect a target; a buoyancy unit connected to the floating body and the detection unit, respectively, a buoyancy material having a smaller specific gravity than water is accommodated therein, and the amount of the buoyancy material accommodated therein is adjusted; and a control unit for controlling the buoyancy unit.

The floating body includes a reservoir for storing the raw material, and the buoyancy unit includes a buoyancy unit for accommodating the buoyancy material in which the raw material is vaporized.

It further includes; each connected to the reservoir and the buoyancy, the supply unit providing a passage for the buoyancy material to move.

The supply unit includes a switch capable of opening and closing the passage.

The switchgear, so as to adjust the supply speed of the buoyancy material supplied to the buoyancy, it is possible to adjust the degree of opening of the passage.

The supply unit, at least a portion is formed of a material having flexibility.

The buoyancy machine, having a receiving space therein, at least a portion of the buoyancy tube having a material that can expand and contract; and a discharge member installed in the buoyancy tube so as to discharge the buoyancy material accommodated in the buoyancy tube to the outside.

The buoyancy tube is provided in plurality, each receiving space communicates with each other, and the buoyancy device includes a plurality of paths for communicating between the buoyancy tubes, and an auxiliary valve for opening and closing the path.

The detection unit may include a supporter extending in one direction and having one end connected to the buoyancy group; a first detector coupled to the support and configured to receive an acoustic signal generated from the target to determine the location of the target; and a second detector coupled to the support, generating an acoustic signal by itself and receiving the acoustic signal reflected by the target to determine the position of the target.

The first detector is disposed at the other end of the supporter, and the second detector is disposed between the first detector and the buoyancy device in the supporter.

The control unit may include: a receiver for receiving a control signal from an external system; and a controller connected to the receiver and controlling opening and closing of the supply unit and the discharge member according to a control signal.

The present invention provides a target detection method for detecting an underwater target, the process comprising: disposing the detection device in water so that a buoyancy part capable of accommodating a buoyancy material therein is immersed in water; The process of receiving a control signal from an external system, adjusting the amount of buoyancy material having a smaller specific gravity than water in the interior of the buoyancy unit; adjusting the height of the detection unit connected to the buoyancy unit in water according to the amount of buoyancy material; and detecting the target using the detection unit.

The process of adjusting the amount of the buoyancy material includes the process of supplying the buoyancy material to the inside of the buoyancy part.

The process of supplying the buoyancy material to the inside of the buoyancy unit, the process of changing a raw material in a liquid or solid state into a buoyancy material in a gaseous state; supplying the buoyancy material in the gaseous state through the connecting hose of the buoyancy unit; It includes;

The process of adjusting the amount of the buoyancy material includes a process of controlling the supply amount of the buoyancy material by adjusting the degree of opening of the passage through which the buoyancy material moves.

The process of changing the raw material into a gaseous buoyancy material includes a process of heating a reservoir in which the raw material is stored.

The process of supplying the buoyancy material to the inside of the buoyancy part includes a process of filling the buoyancy material in a selected part of the inside of the buoyancy part divided into a plurality of parts.

The process of detecting the target using the detection unit may include receiving an acoustic signal generated from the target to confirm the location of the target, or generating an acoustic signal by itself and receiving the acoustic signal reflected by the target to receive the target. The process of confirming the location of; includes.

After the process of supplying the buoyancy material to the inside of the buoyancy part, the process of discharging the buoyancy material supplied to the inside of the buoyancy part; further comprising, and adjusting the degree of descent of the detection unit according to the discharge of the buoyancy material; including; do.

The present invention can adjust the depth of the target detection device in the water through the buoyancy unit. Accordingly, a position detected by the target detection apparatus may be organically changed by adjusting the depth of the target detection apparatus.

In addition, it is possible to organically detect the target in the water by changing the position at which the target detection device detects.

In addition, the target can be detected using a method of detecting a voice signal generated from the target or detecting a voice signal reflected by the target by generating a voice signal by itself. Accordingly, it is possible to effectively detect a target located in the water.

1 is a view showing an operation of a target detection apparatus according to an embodiment of the present invention.
Figure 2 is a front view showing a state of the target detection apparatus according to an embodiment of the present invention.
Figure 3 is a view showing the structure of the buoyancy portion.
Figure 4 is a view showing a modified example of the buoyancy portion.
5 is a view showing another modified example of the buoyancy unit.
6 is a view showing a state in which the target detection device detects a target in the water.
7 is a diagram illustrating a state in which a detection position of a target detection device is changed.
8 is a diagram illustrating a state in which the detection position of the target detection device is changed again;
9 is a flowchart illustrating a target detection method according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in more detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in a variety of different forms, and only these embodiments allow the disclosure of the present invention to be complete, and the scope of the invention to those of ordinary skill in the art completely It is provided to inform you. In order to explain the invention in detail, the drawings may be exaggerated, and like numerals refer to like elements in the drawings.

The present invention relates to a target detection device capable of changing a position to be detected in the water by generating buoyancy therein. Hereinafter, a case in which the target detection device is applied to a buoy capable of floating on the sea or sea level will be exemplarily described. For example, the target detection device may include a sonobuoy. However, the scope of application of the target detection apparatus is not limited thereto and may vary.

1 is a diagram illustrating an operation of a target detection apparatus according to an embodiment of the present invention, and FIG. 2 is a front view illustrating a state of the target detection apparatus according to an embodiment of the present invention.

A target detection apparatus according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2 .

The target detection apparatus 100 according to an embodiment of the present invention is a device for detecting a target moving in water, and includes a communicator 113 therein and a floating body 110 for floating on the sea level, which is disposed in the water to the target. A buoyancy material (P) having a smaller specific gravity than water is connected between the detection unit 120 for detecting (10), the floating body 110 and the detection unit 120, and the buoyancy is adjusted to move up and down. It may include a control unit (not shown) for controlling the introduced buoyancy unit 140 and the buoyancy unit 140 . In addition, the target detection apparatus 100 may further include a supply unit 130 for connecting the reservoir 115 and the buoyancy unit 140 provided in the floating body 110 . Here, the target 10 may include a mid-submarine capable of moving underwater.

The floating body 110 has a communicator 113 therein, and may float on the sea level. More specifically, the floating body 110 is a structure having an appropriate buoyancy therein to drift in the sea, and may communicate with an external system through the internal communicator 113 while floating on the sea level. Here, the external system may include an aircraft 20 , a satellite 30 , a ship 40 , or a land control station 50 capable of communicating with the target detection device. In addition, the floating body 110 may include a floating body 111 , a communication antenna 112 , a communicator 113 , a battery 114 , and a storage 115 .

The floating body 111 may be provided as a structure having a predetermined space therein. Here, the floating body 111 may have a shape that is easy to float on the sea level. For example, the floating body 111 may be formed in a hemispherical shape having a vertical length longer than a width. In addition, the floating body 111 may be made of, for example, a plastic material, an aluminum material, or a rubber material.

The communication antenna 112 may transmit/receive with the aircraft 20 , the satellite 30 , the ship 40 , or the land control center 50 . The communication antenna 112 may transmit/receive a communication signal including data to and from the vehicle 20 , the satellite 30 , the ship 40 , or the land control station 50 . For example, data included in the communication signal includes whether the battery 114 of the target detection apparatus 100 operates, whether the operation of the buoyancy unit 140 is controlled, whether the detection unit 120 is controlled, and the detected target 10 ) may be included. The communication antenna 112 may include a transmission antenna 112a and a reception antenna 112b. For example, the transmit antenna 112a may include a VHF antenna. In addition, the receive antenna 112b may include a GPS antenna and a UHF antenna. Accordingly, the target detection device 100 receives a communication signal in the UHF or VHF form from the vehicle 20, the satellite 30, the ship 40 or the land control center 50, and the vehicle 20, the satellite 30 , it is possible to transmit a communication signal in the form of RF or VHF to the ship 40 or the land control station 50 .

The communicator 113 is connected to the communication antenna 112 and may serve to generate and convert a signal. That is, the communicator may perform modulation/demodulation or encryption/decryption of a signal. The communicator 113 may transmit/receive a signal at a predetermined frequency and may change the frequency according to a data value of a signal to be transmitted.

The battery 114 may supply power required for the operation of the target detection apparatus 100 . In general, the power required for the normal operation of the target detection apparatus 100 is designed to be relatively very low and may be implemented as a low-power system. For example, the battery 114 may include a solar panel (not shown) that receives sunlight and converts it into electrical energy. In addition, the battery 114 may include a voltage converter (not shown) for storing electrical energy transmitted from the solar panel and converting it into an internal voltage of the target detection device 100 . Accordingly, the battery 114 may supply power to enable the operation of the target detection apparatus 100 while staying in the sea for a long period of time without receiving power from the outside.

The reservoir 115 may store the raw material P' in which the buoyancy material P is in a liquid state or a solid state. The reservoir 115 may be formed in a box shape of a rectangular parallelepiped having a space therein. The reservoir 115 may be provided with a cooling and pressurizing system so that the raw material P' stored therein can be maintained in a liquid state or a solid state. Since the cooling and pressurization system of the reservoir 115 is a general configuration capable of liquefying or solidifying a gaseous material, a detailed description thereof will be omitted. Hereinafter, a case in which the reservoir 115 is installed in the inside of the floating body 110 , that is, the floating body 111 , will be exemplarily described. However, the location where the storage 115 is installed is not limited thereto and may be installed in any place connected to the buoyancy device 142 to be described later. For example, the storage 115 may be installed in the housing 141 to be described later.

The detector 120 may detect the target 10 by detecting an acoustic signal. The detection unit 120 may be disposed below the floating body 110 and the buoyancy unit 140 . That is, the detection unit 120 may detect the presence or absence of the target and the location of the target by detecting an acoustic signal generated in the water. In addition, the detector 120 may include a support 121 , a first detector 122 , a second detector 123 , an integrator 124 , and a stabilizer plate 125 .

The supporter 121 is connected to the buoyancy unit 140 and may have a shape extending in the vertical direction (ie, the direction from the sea level to the water). Here, the vertical direction may be a direction in which the floating body 110 , the buoyancy unit 140 , and the detection unit 120 are disposed. For example, the supporter 121 may be formed in a rectangular parallelepiped shape extending in the vertical direction. Accordingly, the integrator 124 , the second detector 123 , the stabilizer 125 , and the first detector 122 to be described later may be sequentially coupled to the supporter 121 in the vertical direction to be disposed.

The first detector 122 may receive an acoustic signal generated from the target 10 to detect the position of the target 10 . The first detector 122 may be disposed at the lower end of the supporter 121 . In general, the target 10 located in the water generates a sound by itself, and the generated sound, that is, a voice signal, can be spread while dispersing water as a medium in the water. Accordingly, it is possible to detect the presence of the target and the location of the target by detecting the voice signal generated by the target 10 . For example, the first detector 122 may include an acoustic sensor.

The second detector 123 may detect the position of the target 10 by generating an acoustic signal by itself and receiving the acoustic signal reflected by the target 10 . The second detector 123 may be coupled to the support 121 and disposed above the first detector 122 . The second detector 123 is provided in plurality, and may be arranged side by side in the vertical direction. For example, the second detector 123 may be provided as a disk-shaped sonar sensor.

In general, like a submersible, the target 10 moving underwater with a special purpose reduces the sound (ie, voice signal) generated by itself in order to hide the position of the target 10 . Accordingly, it is difficult to detect the target 10 because its own voice signal is not generated in the target 10 moving underwater with a special purpose. Accordingly, the second detector 123 emits a voice signal by itself, and detects the position of the target 10 by detecting the voice signal reflected by the emitted voice signal hitting the target 10 .

Meanwhile, the first detector 122 may be disposed below the second detector 123 , that is, at the lower end of the supporter 121 . Accordingly, the voice signal generated from the second detector 123 does not flow into the first detector 122 , and only the voice signal generated from the target 10 can be detected by the first detector 122 .

The integrator 124 is coupled to the upper end of the supporter 121 , and may be disposed above the second detector 123 . The integrator 124 may perform a multiplexing operation so that the voice signal received by the first detector 122 or the second detector 123 may be transmitted through the transmitting antenna 112a. Here, since there is no multiplexing method, communication may be performed using an analog or digital communication (FSK, GMSK) method after FM modulation.

The stabilizer plate 125 may be coupled to the supporter 121 between the first detector 122 and the second detector 123 . The stabilizer plate 125 may reduce the flow noise that may be introduced into the first detector 122 and the second detector 123 by reducing vibration and movement caused by waves.

The supply unit 130 is connected to the buoyancy unit 142 of the reservoir 115 and the buoyancy unit 140, respectively, and may provide a passage 131a for the buoyancy material P to move. The supply unit 130 may include a supply hose 131 and a switch 132 .

The supply hose 131 may be provided with a passage (131a) extending in one direction and for moving the buoyancy member (P) therein. Here, at least a portion of the supply hose 131 may be formed of a material having flexibility. If the supply hose 131 is not formed of a flexible material, when the buoyancy unit 140 rises by the buoyancy force, the floating body 110 may be spaced apart from the upper side of the sea level. Accordingly, even if the housing 141 of the buoyancy unit 140 moves upward by providing the supply hose 131 with a flexible material, it is possible to prevent the floating body 110 from floating above the sea level.

The switch 132 is installed on the supply hose 131 and can open and close the passage 131a. Here, the switch 132 may be provided as a valve. Accordingly, the switch 132 operates, and it is possible to adjust the degree of opening of the passage 131a, and it is possible to adjust the supply speed of the buoyancy material P supplied to the buoyancy device 142.

On the other hand, the switch 132 may be provided with an opening and closing member (not shown) and a driving member (not shown). The opening and closing member is installed in the passage (131a), it is possible to change the flow rate of the buoyancy material (P) passing through the passage (131a) by changing the degree of opening of the passage (131a). At least a part of the opening/closing member is movably installed from the edge of the passage 131a to the center of the passage 131a. That is, the opening/closing member may perform the same role as the orifice. For example, a plurality of opening and closing members may be provided, and may be disposed to surround the periphery of the passage 131a at an edge portion of the passage 131a. Accordingly, the opening/closing member may be rotatably installed in a direction perpendicular to the direction in which the buoyancy member P moves toward the center of the passage 131a, that is, the passage 131a. For example, the opening and closing member may be formed in a plate shape. Some of the plurality of opening and closing members may overlap each other. The opening/closing members are disposed at an even angle from the center of the passage 131a in the passage 131a, and may be installed in a direction perpendicular to the passage 131a. That is, the overlapping portion of the opening and closing members may be rotated to increase or decrease at a uniform rate.

The driving member is connected to the opening and closing member to move the opening and closing member. For example, the driving member may include a rotating body, a motor, first teeth, second teeth, and third teeth. The rotating body may be rotatably installed along the edge of the passage (131a).

3 is a view showing the structure of the buoyancy unit.

Referring to FIG. 3 , the buoyancy unit 140 is connected to the floating body 110 , is fixedly coupled to the detection unit 120 , and generates buoyancy to move the detection unit 120 immersed in water in the vertical direction. can That is, the buoyancy unit 140 may move the detection unit 120 in the vertical direction to change the height (ie, water depth) that the detection unit 120 detects in water. The buoyancy unit 140 may receive the buoyancy material P in the vertical direction (the direction from the upper side to the lower side). To this end, the buoyancy unit 140 may include a housing 141 and a buoyancy unit 142 .

The housing 141 may serve as a body in which the buoyancy device 142 is accommodated. The housing 141 may be provided in a cylindrical shape having a space so that the buoyancy device 142 can be accommodated therein. For example, the housing 141 may be made of a plastic or aluminum material having a relatively small load so as to react sensitively to the buoyancy force generated according to the amount of the buoyancy material P accommodated in the buoyancy device 142 . .

The housing 141 may have a fixing protrusion 141a on its upper surface. The fixing protrusion 141a has a hemispherical shape and may be formed by penetrating the center in the vertical direction. Accordingly, the supply hose 131 may be inserted into the fixing protrusion 141a to pass through the housing 141 and be connected to the buoyancy device 142 . In general, in water, the target 10 in the water may receive a force to move by the wave. Accordingly, the portion inserted into the housing 141 of the supply hose 131 may be twisted or damaged by colliding with another target 10 in water. Accordingly, since the fixing protrusion 141a surrounds and protects a portion directly connected to the housing of the supply hose 131 , it is possible to suppress or prevent kinking and damage of the supply hose 131 .

The buoyancy device 142 may generate a buoyancy force in the housing 141 by receiving the buoyancy material P in a gaseous state. Accordingly, it is possible to change the detection position of the detector 120 while moving in the vertical direction together with the detector 120 . The buoyancy device 142 may be installed inside the housing 141 . Hereinafter, a case in which all of the buoyancy devices 142 are provided in the plurality of housings 141 will be exemplarily described. However, the buoyancy device 142 may be installed in at least one of the plurality of housings 141 . In addition, the buoyancy device 142 may include a buoyancy tube (142a) and a discharge member (142b).

The buoyancy tube 142a is disposed inside the housing 141 and extends in the vertical direction and may be formed in a rectangular parallelepiped shape having an accommodating space 142c in which the buoyancy material P can be accommodated. The buoyancy tube (142a) may be in communication with the supply hose (131). The buoyancy tube 142a may be made of, for example, a plastic material or an aluminum material. In addition, the buoyancy tube (142a) may be provided with a material that can be stretched and contracted. That is, it is stretched and contracted by the buoyancy material P accommodated therein, and may be made of a material that can change the volume of the accommodation space 142c. Here, the buoyancy tube 142a may be made of, for example, a material having elasticity, such as rubber.

The discharge member 142b may discharge the buoyancy material P accommodated in the buoyancy tube 142a to the outside of the housing 141 . The discharge member 142b may be opened and closed. The discharge member 142b may have one end connected to the side surface of the buoyancy tube 142a and the other end connected to the housing 141 . That is, the discharge member 142b may be installed on the side of the buoyancy tube 142a to communicate or close the accommodating space 142c of the buoyancy tube 142a and the outside of the housing 141 . For example, the discharge member 142b may include a solenoid valve.

4 is a view showing a modified example of the buoyancy unit.

Referring to Figure 4, the buoyancy tube (142a) is provided in plurality, may be continuously arranged in the vertical direction (direction from the top to the bottom). That is, the buoyancy tube (142a) may be continuously arranged in parallel in the vertical direction. Here, the buoyancy tube (142a) may have a communication path with each other. Hereinafter, a case in which the path is included in the auxiliary valve 142d will be exemplarily described. Each buoyancy tube (142a) may be connected to each other through an auxiliary valve (142d). In the modified example, three buoyancy tubes 142a are provided, and a case in which three buoyancy tubes 142a are continuously arranged along the vertical direction will be described as an example. In addition, the auxiliary valve (142d) is provided with two can be connected to three buoyancy tubes (142a).

5 is a view showing another modified example of the buoyancy unit.

Referring to Figure 5, the buoyancy tube (142a) along the direction from the upper side to the lower side may be formed with a smaller size of the receiving space (142c). That is, the buoyancy tubes 142a sequentially arranged along the direction from the upper side to the lower side may be formed to have a gradually shorter height. Accordingly, it is possible to accommodate a gradually small amount of the buoyancy material (P) along the vertical direction, it is possible to more precisely control the buoyancy force of the buoyancy unit (140). That is, by gradually decreasing the amount of the buoyancy material P to be sequentially filled in the buoyancy tube 142a, the buoyancy material P is filled in the buoyancy unit 140, and the buoyancy generated inside gradually more precisely. can be adjusted. In addition, since the buoyancy material (P) is opened from the filled buoyancy tube (142a) in a relatively small amount of the buoyancy material (P) of the buoyancy tube (142a) in a state in which the buoyancy material (P) is filled inside, the buoyancy unit 140 is more can be precisely adjusted.

On the other hand, the buoyancy device 142 may further include an auxiliary valve (142d) for opening and closing the portion in which the buoyancy tube (142a) communicates with each other. The auxiliary valve 142d may be provided in plurality and may be opened and closed. The auxiliary valve 142d may connect between the buoyancy tubes 142a. More specifically, it is possible to communicate or close between the receiving spaces (142c) of the buoyancy tube (142a). Here, the auxiliary valve 142d may be respectively disposed between the plurality of buoyancy tubes 142a and connected to the buoyancy tubes 142a. Accordingly, based on the receiving direction, the auxiliary valve 142d disposed adjacent to the supply hose 131 is opened in turn, and the buoyancy material P is sequentially filled from the buoyancy tube 142a adjacent to the supply hose 131. have. For example, the auxiliary valve 142d may include a solenoid valve.

A control unit (not shown) may control the operation of the buoyancy unit 140 . That is, the control unit receives the communication signal from the external system and controls the opening and closing operations of the switch 132 and the discharge member 142b to accommodate the buoyancy material P in the receiving space 142c inside the buoyancy tube 142a or to the outside. It is possible to discharge the buoyancy material (P). To this end, the controller 140 may include a receiver (not shown) and a controller (not shown).

The receiver is connected to the communication antenna 112 and may receive a control signal from an external system.

The controller becomes the receiver and can control the operation of the buoyancy unit 140 . That is, the controller may generate buoyancy in the buoyancy unit 140 by controlling the opening and closing operations of the auxiliary valve 142d and the discharge member 142b. Accordingly, buoyancy is generated in the buoyancy unit 140 , and the detection unit 120 may be moved in the vertical direction. That is, the detector 120 may be moved upward by the generated buoyancy. Accordingly, it is possible to change the detection depth of the detection unit 120 in the water and to detect the target 10 in various positions.

The structure and shape of the components of the target detection apparatus 100 described above are not limited thereto, and may vary.

Meanwhile, the process of detecting underwater by using the target detection apparatus 100 according to an embodiment of the present invention will be described together with the process of detecting a target according to an embodiment of the present invention.

Hereinafter, a target detection method according to an embodiment of the present invention will be described.

The method for detecting a target according to an embodiment of the present invention relates to a method of changing the height of the depth to be detected by the detector by changing the height of the depth of the detector in water. The target detection method is a target detection method for detecting the target 10 in the water, and the process of disposing the detection device 100 in water so that the buoyancy part 140 capable of accommodating the buoyancy material P therein is immersed in water (S110), the process of receiving a control signal from an external system to adjust the amount of buoyancy material having a smaller specific gravity than water in the interior of the buoyancy unit 140 (S120), the buoyancy unit 140 in the water according to the amount of the buoyancy material P ) may include a process of adjusting the height of the detection unit 120 connected to ( S130 ) and a process of detecting the target 10 using the detection unit 120 ( S140 ).

Hereinafter, the case in which the detection apparatus is the above-described target detection apparatus 100 will be exemplarily described, and more specifically, it is assumed that the detection apparatus is a sonobuoy. On the other hand, in the target detection method according to an embodiment of the present invention, the buoyancy material (P) may include helium and hydrogen.

6 is a diagram illustrating a state in which the target detection apparatus detects a target in water, FIG. 7 is a diagram illustrating a state in which the detection position of the target detection apparatus is changed, and FIG. 8 is a view illustrating the detection position of the target detection apparatus It is a diagram showing a state of change, and FIG. 9 is a flowchart illustrating a target detection method according to an embodiment of the present invention.

Hereinafter, a method for detecting a target will be described with reference to FIGS. 1 and 6 to 9 .

First, referring to FIG. 1 , the floating body 110 may float on the sea level. At this time, the floating body 110 may send and receive communication signals with the aircraft 20 , the satellite 30 , the ship 40 , and the land control station 50 through the transmitting antenna 112a and the receiving antenna 112b . In addition, the buoyancy unit 140 and the detection unit 120 connected to the floating body 110 may be arranged side by side in the water under their own weight. (S110) That is, the buoyancy unit 140 and the floating body 110 is fluidly connected by the supply hose 131 , the buoyancy unit 140 and the detection unit 120 may be fixedly connected by the supporter 121 . In addition. It may be arranged in a state that is drooping downward by the weight of the detection unit 120 in the water.

Referring to FIG. 6 , the storage 115 of the target detection apparatus 100 may store the raw material P′ in a liquid or solid state. Here, the reservoir 115 may use a cooling and pressurization system installed therein to cool and pressurize the raw material to maintain the raw material P' in a liquid or solid state. In addition, the buoyancy device 142 may be in a state that does not accommodate the buoyancy material (P) therein.

In addition, the first detector 122 and the second detector 123 may detect the target 10 at the currently located water depth height. That is, as shown in FIG. 5 , the target 10 may be detected at a water depth height (hereinafter, referred to as a first position) at which the first detector 122 and the second detector 123 are disposed. At this time, the first detector 122 receives the acoustic signal generated from the target 10 to detect the position of the target 10 , and the second detector 123 , the second detector 123 emits an acoustic signal by itself. The position of the target 10 may be detected by receiving the acoustic signal reflected by the target 10 .

Referring to FIG. 7 , the reception antenna 112b may receive a communication signal for changing a location to be detected from an external system. The communication signal received by the receiving antenna 112b may be transmitted to the control unit through the communicator 113 . The control unit may supply a buoyancy material (P) having a smaller specific gravity than air to the inside of the aircraft 100 . That is, the raw material P' in a liquid or solid state stored in the reservoir 131 may be ejected to the supply hose 131 (S120). Here, the raw material P ′ may be phase-changed into the gaseous buoyancy material P while being supplied to the supply hose 131 . Accordingly, the buoyancy material P in a gaseous state may be supplied to the supply hose 131 . Thereafter, the control unit may supply the buoyancy material (P) to the buoyancy tube (142a) connected to the supply hose (131) by opening the switch (132).

Accordingly, the amount of the buoyancy material (P) in the buoyancy tube (142a) can be adjusted (S130). That is, the buoyancy material (P) is filled in the interior of the buoyancy tube (142a), buoyancy can be generated.

Accordingly, the height of the detection unit 120 connected to the buoyancy unit 140 in water may be adjusted according to the amount of the buoyancy material P (S130). That is, the detection unit 120 may be moved upwardly by the generated buoyancy force. Accordingly, the detection unit 120 may detect the target 10 at a relatively higher depth of water than the first position. That is, as shown in FIG. 7 , the target 10 may be detected at a depth of water (hereinafter, referred to as a second position) at which the first detector 122 and the second detector 123 are disposed.

On the other hand, in a modified example and another modified example of the buoyancy device 142, the buoyancy material P may be sequentially filled in the housing 141 to gradually increase the buoyancy force of the housing 141. The buoyancy material P may be sequentially filled in the interior of the buoyancy tube 142a sequentially arranged along the direction from the upper side to the lower side. Accordingly, the buoyancy force inside the housing 141 may be gradually increased, and the load of the housing 141 may be relatively reduced. In addition, the detection unit 120 receives a force to move upward due to the buoyancy, and may move upward.

Referring to FIG. 8 , the reception antenna 112b may receive a communication signal from an external system to detect the detection unit 120 again at the first position. The communication signal received by the receiving antenna 112b may be transmitted to the control unit through the communicator 113 . The control unit may discharge the buoyancy material (P) filled in the plurality of buoyancy tubes (142a) by opening the discharge member (142b). That is, it is possible to remove the buoyancy force generated in the housing 141 . Here, the target detection apparatus 100 may sequentially open the discharge member 142b along a direction from the lower side to the upper side to discharge the buoyancy material P to the outside of the buoyancy tube 142a and the housing 141 . Accordingly, the buoyancy generated in the housing 141 may be removed, and the descending buoyancy unit 140 and the detection unit 120 may move downward by the weight of the detection unit 120 . Accordingly, the first detector 122 and the second detector 123 may return from the second position to the first position to detect the target 10 at the first position.

As such, it is possible to adjust the depth of the target detection device in the water through the buoyancy unit. Accordingly, a position detected by the target detection apparatus may be organically changed by adjusting the depth of the target detection apparatus. In addition, it is possible to organically detect the target in the water by changing the position at which the target detection device detects. In addition, the target can be detected using a method of detecting a voice signal generated from the target or detecting a voice signal reflected by the target by generating a voice signal by itself. Accordingly, it is possible to effectively detect a target located in the water.

As such, although specific embodiments have been described in the detailed description of the present invention, various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined by the claims to be described below as well as the claims and equivalents.

100: target detection device 110: buoyancy body
120: detection unit 130: buoyancy unit
P: buoyancy material

Claims (20)

A target detection device for detecting an underwater target, comprising:
a floating body having a communication device therein, floating on the sea level, and including a reservoir for storing raw materials;
a detection unit disposed in the water to detect a target;
It is connected between the floating body and the detection unit, and a buoyancy material having a smaller specific gravity than water is introduced therein so that the buoyancy force is adjusted to move up and down, and a buoyancy device for accommodating the buoyancy material in which the raw material is vaporized. buoyancy; and
Including; a control unit for controlling the buoyancy unit;
The buoyancy device has an accommodating space therein, and at least a portion of the buoyancy tube having a material capable of expansion and contraction and a discharge member installed in the buoyancy tube so as to discharge the buoyancy material accommodated in the buoyancy tube to the outside. Target detection Device. delete delete The method according to claim 1,
A target detection device further comprising a; each connected to the reservoir and the buoyancy, the supply unit providing a passage for the buoyancy material to move. 5. The method according to claim 4,
and the supply unit, a switch capable of opening and closing the passage. 6. The method of claim 5,
The switchgear is a target detection device capable of adjusting the degree of opening of the passage so as to adjust the supply speed of the buoyancy material supplied to the buoyancy device. 5. The method according to claim 4,
The supply unit, at least a portion of the target detection device is formed of a flexible material. delete 5. The method according to claim 4,
The buoyancy tube is provided in plurality, and each receiving space communicates with each other,
The buoyancy device, a path for communicating between a plurality of the buoyancy tube, and an auxiliary valve for opening and closing the path; Target detection device further comprising a. The method according to claim 1,
The detection unit,
a supporter extending in one direction and having one end connected to the buoyancy group;
a first detector coupled to the support and configured to receive an acoustic signal generated from the target to determine the location of the target; and
and a second detector coupled to the support, generating an acoustic signal by itself, and receiving the acoustic signal reflected by the target to determine the position of the target. 11. The method of claim 10,
The first detector is disposed at the other end of the supporter,
The second detector is a target detection device disposed between the first detector and the buoyancy in the support. 5. The method according to claim 4,
The control unit is
a receiver for receiving a control signal from an external system; and
and a controller connected to the receiver and controlling opening and closing of the supply unit and the discharge member according to a control signal. A target detection method for detecting an underwater target, comprising:
The process of disposing a detection device in water so that the buoyancy part capable of accommodating the buoyancy material therein is immersed in water;
The process of receiving a control signal from an external system, adjusting the amount of buoyancy material having a smaller specific gravity than water in the interior of the buoyancy unit;
adjusting the height of the detection unit connected to the buoyancy unit in water according to the amount of buoyancy material; and
The process of detecting the target using the detection unit; including,
The process of adjusting the amount of the buoyancy material includes the process of supplying the buoyancy material to the inside of the buoyancy part,
The process of supplying the buoyancy material to the inside of the buoyancy part,
The process of changing a raw material in a liquid or solid state into a buoyant material in a gaseous state;
supplying the buoyancy material in the gaseous state through the connecting hose of the buoyancy unit; and
A target detection method comprising a; the process of adjusting the amount of the buoyancy material accommodated in the buoyancy unit. delete delete 14. The method of claim 13,
The process of adjusting the amount of the buoyancy material, the process of controlling the supply amount of the buoyancy material by adjusting the degree of opening of the passage through which the buoyancy material moves; Target detection method comprising a. 14. The method of claim 13,
The process of changing the raw material into a gaseous buoyant material includes a process of heating a reservoir in which the raw material is stored. 14. The method of claim 13,
The process of supplying the buoyancy material to the inside of the buoyancy part, the process of filling the buoyancy material in a selected part of the inside of the buoyancy part divided into a plurality of; Target detection method comprising a. 14. The method of claim 13,
The process of detecting the target using the detection unit may include receiving an acoustic signal generated from the target to confirm the location of the target, or generating an acoustic signal by itself and receiving the acoustic signal reflected by the target to receive the target. The process of confirming the location of; Target detection method comprising a. 14. The method of claim 13,
After the process of supplying the buoyancy material to the inside of the buoyancy part, the process of discharging the buoyancy material supplied to the inside of the buoyancy part; further comprising,
A target detection method comprising a; adjusting the descending degree of the detection unit according to the amount of the buoyancy material.

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