KR101784960B1 - Apparatus and method for unfolding antenna - Google Patents

Abstract

According to an embodiment of the present invention, there is provided a portable terminal including an antenna development unit including at least one antenna and at least one antenna for expanding or contracting the antenna, And a control module for generating a control signal for controlling the expansion or contraction of the control signal.

Description

[0001] Apparatus and method for unfolding antenna [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus and a method for developing an antenna, and more particularly, to an apparatus and a method for developing an antenna of an underwater vehicle.

Underwater vehicles can not communicate wirelessly in water, so they carry out long distance wireless communication after floats on water surface. Therefore, in recent years, there is a growing need for long distance wireless communication after the floatation of an underwater vehicle.

Conventionally, when an antenna mounted on an underwater vehicle is adopted, a fixed length antenna is adopted. More specifically, when a low-fixed antenna is used, the antenna altitude is low or the antenna is frequently immersed in water. Therefore, when the transmission distance of the wireless communication is shortened, or when the antenna comes into contact with water due to the surface wave, wireless communication is impossible or GPS information reception is impossible. In case of applying a fixed antenna of high length There is an inconvenience that the running of the underwater vehicle is affected, or fluid resistance is generated, and the operation is restricted.

The antenna expansion device according to an embodiment of the present invention does not affect the running of an underwater vehicle. In order to perform long-range communication with an external device, the antenna expansion device increases the antenna size so that the radio wave can reach a long distance, And suggests a device and method that can be developed.

Prior Art 1: Korean Patent Publication No. 10-2015-0061606 (published)

SUMMARY OF THE INVENTION An object of the present invention is to solve the problems of the prior art described above, and an antenna expansion apparatus and method enable long distance communication with other devices without affecting the running of an underwater vehicle.

According to an aspect of the present invention, there is provided an apparatus for detecting an injury of an underwater vehicle, the apparatus comprising: at least one antenna; And a control module for generating a control signal for controlling the antenna expansion unit to expand or contract according to whether or not the antenna expansion unit is expanded or contracted.

In addition, one surface of the antenna may be located on the outer surface of the underwater vehicle, and the antenna may be deployed in a direction perpendicular to the traveling direction of the underwater vehicle when the underwater vehicle is lifted above the water surface .

In the present invention, the floatation determination unit may be a pressure sensor for sensing the pressure to determine whether the underwater vehicle is floated.

In the present invention, the at least one antenna may be a composite antenna that performs multi-purpose wireless communication such as RF transmission / reception and GPS reception, and a rod antenna that performs RF communication.

In the present invention, the antenna development unit may include: a gas generation unit that generates gas in accordance with the generated control signal; a gas cylinder that explodes the gas generated from the gas generation unit; an antenna And a manifold for connecting the gas cylinder and the gas generator, and injecting the explosion gas into the antenna housing.

In addition, the control module may further include an RF modem and a GPS receiver, and at least one antenna may be wirelessly connected to the RF modem and the GPS receiver in the present invention.

In the present invention, the control module may further include a squib igniter for generating an ignition signal for operating the gas generator that receives the generated control signal and generates gas.

According to another aspect of the present invention, there is provided a method of controlling an underwater vehicle, the method comprising: determining whether an underwater vehicle is floated, including at least one antenna; expanding or contracting the antenna; And generating a control signal for controlling the antenna expansion unit to expand or contract.

In addition, one surface of the antenna may be located on the outer surface of the underwater vehicle, and at least one of the antennas may be deployed in a direction perpendicular to the running direction of the underwater vehicle at a time point when the underwater vehicle floats above the water surface can do.

In the present invention, the step of expanding or contracting the antenna may further include generating gas in accordance with the generated control signal, and developing the contracted antenna using the generated gas.

In the present invention, the step of expanding or contracting the antenna may expand or contract the antenna as the pressure in the water and the pressure in the water phase are sensed.

According to another aspect of the present invention, there is provided a portable terminal comprising: a floating determining unit for determining whether an underwater vehicle and an underwater vehicle are floating; and at least one antenna, And a control unit for generating a control signal for controlling the antenna expansion unit to expand or contract according to whether or not the underwater vehicle is lifted.

Therefore, the apparatus and method for expanding an antenna according to an embodiment of the present invention are capable of long-distance communication and can transmit and receive signals stably even in the presence of a sea level wave.

The apparatus and method for expanding an antenna according to another embodiment of the present invention can easily receive a weak RF signal even in an environment where wireless communication is impossible and can further improve communication performance.

FIG. 1 is a view showing an underwater vehicle using an extended antenna according to an embodiment of the present invention.
2 is a block diagram schematically showing a configuration of an antenna expansion device 10 according to an embodiment of the present invention.
3 is a view schematically showing the configuration of an antenna expansion unit 100 according to an embodiment of the present invention.
FIG. 4 is a view illustrating an antenna development unit 100 according to an embodiment of the present invention.
5 is a flowchart illustrating a method of developing an antenna using an antenna expansion apparatus according to an embodiment of the present invention, according to the flow of time.

The present invention will be described in detail with reference to the accompanying drawings.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings and accompanying drawings, but the present invention is not limited to or limited by the embodiments.

The term used in the specification of the present invention selects the general term that is widely used in the present invention while considering the function of the present invention, but it may be changed depending on the intention or custom of the technician engaged in the field or appearance of new technology . Also, in certain cases, there may be a term chosen arbitrarily by the applicant, in which case the meaning thereof will be described in the description of the corresponding invention. Therefore, it is intended that the terminology used herein should be interpreted based on the meaning of the term rather than on the name of the term, and on the entire contents of the specification. For example, certain features, structures, and characteristics described herein may be implemented in other embodiments without departing from the spirit and scope of the invention in connection with an embodiment.

Further, although the reference numerals and the like of the drawings are denoted by the same reference numerals and signs as possible, even if they are shown in different drawings, the same reference numerals and signs are used. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the present invention is to be limited only by the appended claims, along with the full scope of equivalents to which such claims are entitled, if properly explained. In the drawings, like reference numerals refer to the same or similar functions throughout the several views.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, so that those skilled in the art can easily carry out the present invention.

FIG. 1 is a view showing an underwater vehicle using an extended antenna according to an embodiment of the present invention. For example, the underwater vehicle may be a type of submersible that is capable of submerging underwater including a torpedo and a deception device, which is one of the guided weapons that move itself in water and attack enemy ships or submarines.

Referring to FIG. 1, the underwater vehicle may include an antenna deployment device. Here, the antenna expansion device may include an antenna expansion unit 100, a control module 200, and a floating determination unit 300.

For a more detailed explanation, it will be described later with reference to Fig.

2 is a block diagram schematically showing a configuration of an antenna expansion device 10 according to an embodiment of the present invention.

2, the antenna expansion unit 100 according to the embodiment of the present invention may include a gas generation unit 110 and at least one antenna 121, 122, and 123. Here, the at least one antenna to live may be a composite antenna 121, a rod antenna 122, and a GPS antenna 123. In addition, the antenna expansion unit 100 can expand or contract the antenna.

The control module 200 according to an embodiment of the present invention may include a control unit 210, a squib detonator 220, an RF modem 230, and a GPS receiver 240.

The control module 200 may generate a control signal for controlling the antenna expansion unit 100 to expand or contract according to whether the underwater vehicle 20 is lifted or not.

In detail, the control unit 210 of the control module 200 according to the embodiment of the present invention controls the operation and function of the elements constituting the antenna expansion device, and the squib detonator 220 And generates an aerial signal to operate the gas generator 110 that receives the generated control signal and generates gas. For example, the squib igniter 110 receives an on / off control signal from the controller 210 and applies an electric signal of a constant voltage or current to the gas generator 110.

The injury determining unit 300 according to the embodiment of the present invention can determine whether the underwater vehicle 20 is injured or not. At this time, the injury determining unit 300 may be implemented as a pressure sensor that senses the pressure to determine whether the underwater vehicle 20 is floating.

For example, the floatation determination unit 300 may determine that the underwater vehicle 20 is floated when the detected pressure value of the underwater vehicle 20 falls within a preset pressure range. Here, the predetermined pressure range may be set to a pressure range including an error range close to the atmospheric pressure with reference to the atmospheric pressure.

For example, the float determining unit 300 may perform an operation of sensing the pressure of the underwater vehicle 20 after the underwater vehicle 20 completes the running in water.

3 is a view schematically showing the configuration of an antenna expansion unit 100 according to an embodiment of the present invention.

3, the antenna expansion unit 100 according to the embodiment includes a gas generating unit 110, an antenna 120, a manifold 130, a gas cylinder 140, and an antenna housing 150 .

The gas generator 110 according to the embodiment of the present invention can generate gas according to a control signal generated from the control module 200. [ The gas cylinder 140 is located at one end of the gas generating part 110 and exploits the gas as the gas generated from the gas generating part 110 is injected.

At least a portion of the antenna 120 is located on the outer surface of the underwater vehicle 20 (see FIG. 1), and the antenna housing 150 is extended or shrunk so that the antenna 120 can float in water. can do. Here, the antenna housing 150 is realized as a tube, and a space capable of containing air and gas can be provided therein. The antenna 120 may be applied to at least one of the composite antenna 121, the rod antenna 122, and the GPS antenna 123.

The manifold 130 according to the embodiment of the present invention connects the gas generating unit 110 and the gas cylinder 140 and injects the gas exploded from the gas cylinder 140 into the antenna housing 150 have.

FIG. 4 is a view illustrating an antenna development unit 100 according to an embodiment of the present invention.

4A shows an example in which the underwater vehicle 20 floats above the sea surface and the antenna expansion unit 100 injects gas into the antenna housing 150 to float the antenna 121 in the air Fig. More specifically, the antenna 120 is located on the outer surface corresponding to the upper portion of the underwater vehicle 20, and when the underwater vehicle 20 floats above the water surface, .

Here, FIG. 4A is an example of adopting the composite antenna 121 as the antenna of the antenna expansion device 10.

As shown in FIG. 4 (a), the antenna development unit 100 may further include an antenna cable 160. The antenna cable 160 is provided inside the antenna housing 150. When the antenna cable 160 is in a contracted state, the cable exists in a folded state as shown in FIG. The antenna cable 160 may be formed of, for example, a folding bucket so that the antenna cable 160 can be easily made to shrink and expand.

4 (b) is a plan view of the antenna expansion device 10 in which a GPS antenna 123 and a rod antenna 122 of a wire type or a flexible PCB type are provided in the antenna housing 150, 100).

At this time, the developed antenna 120 can be connected to the RF modem 230 and the GPS receiver 240 of the control module 200 through the antenna cable 160.

2, the RF modem 230 and the GPS receiver 240 may be integrated with the composite antenna 121 and the GPS antenna 123 to reduce signal attenuation and may be coupled to the antenna housing 150 at one end have.

In addition, the controller 210 according to the embodiment of the present invention can supply power to the antenna 120 through the antenna cable 160, and the antenna deployment unit 100 can control the expansion and contraction.

The control module 200 according to an embodiment of the present invention can control the operation of the antenna expansion device 10 and more specifically can generate a control signal for controlling the deployment operation of the antenna expansion part 100 . The control module 200 according to another embodiment includes an RF modem 230 for modulating signals received from the at least one antenna 120 as the antenna development unit 100 is developed, And a GPS receiver 240 for calculating positions including time and distance using the received position information.

5 is a flowchart illustrating a method of developing an antenna using an antenna expansion apparatus according to an embodiment of the present invention, according to the flow of time.

Referring to FIG. 5, the control module 200 of the antenna expansion apparatus 10 determines whether the running of the underwater vehicle 20 has been completed (S10). If an underwater vehicle is running, it returns to the start phase.

When the underwater vehicle 20 has finished running, the floatation determination unit 300 senses the pressure of the underwater vehicle in order to check whether the underwater vehicle has floated above the sea surface (S20). In this case, when the pressure of the underwater vehicle 20 sensed by the floatation determination unit is in a preset pressure range and stored, the pressure sensing method of determining whether the underwater vehicle 20 is floating or not, 20) floated above sea level. At this time, the preset pressure range may be a pressure range based on the atmospheric pressure.

If it is determined that the underwater vehicle has been floated (S30), the float determining unit 300 detects the pressure of the underwater vehicle 20 again if the underwater vehicle does not float on the sea surface .

On the other hand, when the underwater vehicle floats above the sea surface, the control module 200 generates a control signal for antenna expansion of the antenna development unit 100 (S40).

Accordingly, the gas generator 110 of the antenna expansion unit 100 generates a gas to be injected into the antenna housing 150 (S50).

As the manifold 130 injects gas into the antenna housing using the gas generated from the gas generator 110, the antenna housing expands and at least one antenna 120 floats in the air S60).

After the antenna expansion unit 200 is developed, the antenna 120 transmits and receives signals through communication with an external device (S70).

The control module 200 according to the embodiment of the present invention terminates the mission when all the signals including the information to be communicated are transmitted and received through the antenna (S80).

It will be apparent to those skilled in the art that various modifications, substitutions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. will be. Therefore, the embodiments disclosed in the present invention and the accompanying drawings are intended to illustrate and not to limit the technical spirit of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments and the accompanying drawings . The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

10: Antenna deployment device
20: underwater vehicle
100: Antenna development part
110:
120: antenna
200: control module
300:

Claims (12)

A floatation judging unit for judging whether or not an underwater vehicle is floated considering a preset pressure range based on atmospheric pressure;
Wherein one end is located on the outer surface of the underwater vehicle and is floated above the water surface by using a cable which is variable in its shape and is capable of expanding and contracting and is associated with position data related to time and distance at the floated position, An antenna for transmitting and receiving traveling data, a gas generating unit for generating gas, an antenna housing for covering the cable and floating the antenna, a gas generating unit connected to one end of the gas generating unit, And a manifold for fixing the gas generating unit, the gas cylinder, and the antenna housing; And
A control module for controlling the antenna expanding part to expand or contract according to the floating state of the underwater vehicle and generating a control signal for generating the gas;
. The method according to claim 1,
Wherein the antenna extends in a direction perpendicular to the traveling direction of the underwater vehicle at a time point when the underwater vehicle floats above the water surface. The method according to claim 1,
Wherein the floatation determination unit is a pressure sensor for sensing pressure to determine whether the underwater vehicle is floating. The method according to claim 1,
The at least one antenna,
A complex antenna for performing multipurpose wireless communication such as RF transmission / reception and GPS reception, and a rod antenna for performing RF communication. delete The method according to claim 1,
Wherein the control module further comprises an RF modem and a GPS receiver,
Wherein at least one antenna is connected to the RF modem and the GPS receiver for wireless communication. The method according to claim 1,
The control module includes:
A squib igniter for generating an ignition signal for activating a gas generator for generating a gas upon receipt of the generated control signal;
Further comprising: An antenna deployment apparatus for deploying an antenna according to a floating state of an underwater vehicle includes the steps of: determining whether the underwater vehicle is floated in consideration of a predetermined pressure range based on atmospheric pressure;
The antenna expansion device floats on the water surface using a cable whose one end is located on the outer surface of the underwater vehicle and which is variable in shape and can be expanded and contracted. An antenna for transmitting and receiving travel data related to the running of the underwater vehicle, a gas generating part for generating gas, an antenna housing for covering the cable, floating the antenna, and a gas generated in connection with one end of the gas generating part, A gas cylinder for injecting the injected gas into the antenna housing, and a manifold for fixing the gas generating unit, the gas cylinder, and the antenna housing, wherein the gas generating unit, the antenna housing, the gas cylinder, Expanding or contracting the antenna using the antenna; And
Generating a control signal for expanding or contracting the antenna expanding part and generating the gas according to the floating state of the underwater vehicle;
/ RTI > 9. The method of claim 8,
Wherein the antenna is developed in a direction perpendicular to the traveling direction of the underwater vehicle at a time point when the underwater vehicle floats above the water surface. delete delete An underwater vehicle; And
A flotation judging unit for judging whether or not an underwater vehicle is floating in consideration of a preset pressure range based on an atmospheric pressure, a cable for allowing one end to be located on the outer surface of the underwater vehicle, An antenna for transmitting and receiving travel data related to the running of the underwater vehicle, position data related to time and distance at a floated position, a gas generating unit for generating gas, a cable for covering the cable, A gas cylinder connected to one end of the gas generating unit to receive the gas generated and supplied to the antenna housing, and a gas cylinder, a gas cylinder, and a manifold for fixing the antenna housing An antenna expansion portion including a fold and an antenna extending portion An antenna expansion device including a control module for controlling the antenna expansion part to expand or contract according to a floating state and generating a control signal for generating the gas;
Wherein the antenna comprises a first antenna and a second antenna.

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