KR101907749B1 - Buried underwater acoustic sensor power supply system and buried underwater acoustic sensor power supply method using the same - Google Patents

Abstract

BACKGROUND OF THE INVENTION Field of the Invention [0001] The present invention relates to a method of supplying power to an underwater acoustic sensor, and more particularly, to a method of supplying power to an acoustic sensor module by supplying power at both ends.

Description

Technical Field [0001] The present invention relates to a submerged type underwater acoustic sensor power supply system, and a submerged type underwater acoustic sensor power supply method using the same. [0001] The present invention relates to a submerged type submerged acoustic sensor power supply system,

BACKGROUND OF THE INVENTION Field of the Invention [0001] The present invention relates to a method of supplying power to an underwater acoustic sensor, and more particularly, to a method of supplying power to an acoustic sensor module by supplying power at both ends.

In general, sonar detection means are widely used as the most effective method for detecting marine aquatic and underwater targets. As a means of detecting such sound waves, a hydrophone is utilized, and dozens to hundreds of hydrophones are arranged at regular intervals in order to distinguish between the increase of detection distance and the transmission direction of sound waves.

Linear array acoustic sensors are classified into two types according to their operating modes: pre-array line array acoustic sensors and submarine line array acoustic array sensors

SONAR (Sound Navigation And Ranging) is a device used in the military and civilian fields for detection or expression of water or underwater objects. Dual active underwater acoustic sensors are designed to generate sound waves, emit them in water, interpret the reflected waves reflected from objects in the water and analyze them to detect water and underwater targets. On the other hand, passive underwater acoustic sensors can only detect water and underwater targets.

The submersible underwater acoustic sensor is a passive line array submersible acoustic sensor, which is operated by fixing the underwater acoustic sensor to the sea floor. Therefore, unlike the towed array sonar system (TASS), it is not limited by the thickness and length of the line. In addition, because it is buried in a specific area, there is an advantage that it can have sufficient information about the acoustic environment such as seawater temperature and density distribution which greatly affects the performance of the sounding equipment. In addition, there is no generated noise such as TASS or TACM, which is very useful for target detection.

However, there is a disadvantage that installation cost is large. Therefore, the main feature of prevention against failure is highlighted. The cost of installation burial is a large proportion of installed ships. Because it is buried underwater, the rental cost of the dedicated ship is generated, and the burden of the builder / installer on the cost of other collection and re-burial is large.

However, the biggest problem is that when the buried type underwater acoustic sensor is broken down, the operation space is generated. Therefore, it is necessary to take measures against the failure, so that it is possible to minimize the cost burden and the operational space for post-repair.

1 illustrates the existing installation concept of a buried underwater acoustic sensor. An underwater acoustic sensor embedded in the seabed serves to collect / process surrounding acoustic data. The submarine cable is the path through which the collected sound data is transmitted to the land control station and the power supply to the underwater acoustic sensor. The onshore controller consists of equipment that restores and controls sensor data and a power supply that supplies power to underwater acoustic sensors. Usually the power supply uses DC power and supplies a relatively high voltage submarine cable to minimize power loss.

2 is a schematic view illustrating an internal structure of a conventional buried type underwater acoustic sensor. The power supply module is connected on either side to convert the high voltage to a low voltage using a DC-to-DC conversion and a filter that removes input power noise and output power noise. The acoustic sensor module 150 is a module that occupies the longest length in the underwater acoustic sensor, and collects acoustic signals and transmits the collected acoustic signals to the signal transmission module 500. When the length of the acoustic sensor module 150 becomes long, the Moon passes through the wire at a low voltage as compared with when the acoustic sensor module 150 is passed through the submarine cable due to the DC-DC conversion. A supply situation may occur.

Korean Patent No. 10-0175784 (November 11, 1998)

SUMMARY OF THE INVENTION The present invention has been conceived to solve the above-described problems, and it is an object of the present invention to provide a sound sensor module,

A submerged type underwater acoustic sensor power supply system in which a switch is disposed in the middle of a conductor to supply power to all the acoustic sensor modules using only a normal power supply module when any one of the power supply modules fails, The purpose of the supply is to provide.

A submerged underwater acoustic sensor power supply system according to an embodiment of the present invention is a submerged line array underwater acoustic sensor including a plurality of acoustic sensor modules for sensing acoustic signals in water, First power supply means connected to one end to supply power; And a second power supply means connected to the other end of the underwater acoustic sensor for supplying power, wherein power can be supplied from both ends of the underwater acoustic sensor at the same time, and each of the first and second power supply means and And the power is supplied only through one of the two power supply means.

The underwater acoustic sensor may further include: a sensor unit for sensing an underwater acoustic signal;

A first power supply module connected to one end of the sensor unit and supplying power to the sensor unit; A second power supply module connected to the other end of the sensor unit for supplying power to the sensor unit from the second power supply unit and a signal transmission module for transmitting a signal sensed by the sensor unit to the outside .

The power source may be a DC power source.

The first power supply module may include a first voltage converter for adjusting a voltage of a power source applied from the first power supply unit, And a second voltage converting device for adjusting a voltage of the power source.

Further, the sensor unit may be characterized in that the plurality of acoustic sensor modules are arranged in a line and connected.

Each of the plurality of acoustic sensor modules may include an acoustic sensor for sensing a sound wave and converting it into an electrical signal; An amplifier for amplifying the converted signal; And an individual power supply unit for applying power to the acoustic sensor and the amplifier.

Each of the plurality of acoustic sensor modules may be electrically connected to the first power supply module through a first lead wire and may be electrically connected to the second power supply module through a second lead wire.

The first conductor may include a first switch capable of controlling power supply to the downstream in the longitudinal center portion thereof, and the second conductor may include a second switch capable of controlling power supply to the downstream in the longitudinal center portion, And a control unit.

In addition, the first switch and the second switch may be remotely controlled.

Each of the plurality of acoustic sensor modules may receive power from a power supply module of any one of the first power supply module and the second power supply module.

The first switch may be turned on or off according to whether the second power supply module is faulty and the second switch may be turned on or off depending on whether the first power supply module is faulty. / OFF (OFF).

The first power supply means and the underwater acoustic sensor may be connected by a first cable, and the first cable may include a power supply cable and a signal transmission cable.

In addition, the second power supply means and the underwater acoustical sensor may be connected by a second cable, and the second cable may be a power supply cable.

The method of supplying a buried type underwater acoustic sensor according to an embodiment of the present invention is a method of supplying a buried type underwater acoustic sensor using the buried underwater acoustic sensor power supply system according to any one of claims 1 to 13 Simultaneously supplying power at both ends of the underwater acoustic sensor; Determining whether each of the first power supply module and the second power supply module has failed; Controlling a switch connected to a normal power supply module according to the determination result; . ≪ / RTI >

The power supply step may be performed while both the first switch and the second switch are turned off.

In the switch control step, when both the first power supply module and the second power supply module are in normal operation, the first switch and the second switch are kept in the OFF state .

In the switch control step, if any one of the first power supply module and the second power supply module fails, the first power supply module and the second power supply module, And turning on a switch connected to the supply module.

According to the present invention, power is supplied from both ends of an underwater acoustic sensor, so that power can be smoothly supplied to all the acoustic sensor modules.

Further, there is an effect that power is supplied to all the acoustic sensor modules with only a power supply module which is normal when any one of the power supply modules fails, by arranging the switches in the middle of the conductors.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view showing a method of installing a buried underwater acoustic sensor according to the prior art;
2 is a schematic view showing an internal power supply structure of a buried type underwater acoustic sensor according to the prior art;
3 is a schematic view illustrating a method of installing a buried underwater acoustic sensor power supply system according to an embodiment of the present invention
4 is a schematic view illustrating an internal power supply structure of a buried underwater acoustic sensor power supply system according to an embodiment of the present invention;
5 is a schematic view showing an internal power supply structure of a sensor unit of a buried underwater acoustic sensor power supply system according to an embodiment of the present invention;
6 is a flowchart showing a method of supplying a buried underwater acoustic sensor power using a buried underwater acoustic sensor power supply system according to an embodiment of the present invention.

It is to be understood that the words or words used in the present specification and claims are not to be construed in a conventional or dictionary sense and that the inventor can properly define the concept of a term in order to describe its invention in the best way And should be construed in accordance with the meaning and concept consistent with the technical idea of the present invention. Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and are not intended to represent all of the technical ideas of the present invention. Therefore, various equivalents It should be understood that water and variations may be present. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 is a schematic view illustrating a method of installing a buried underwater acoustic sensor power supply system according to an embodiment of the present invention.

3, in the method of installing the submerged type underwater acoustic sensor power supply system according to the embodiment of the present invention, a submarine cable capable of simultaneously performing power supply and signal transmission is provided in front of an underwater acoustic sensor embedded in the seabed. And is responsible for data collection and power supply at the land control station in the same way as the existing installation concept. In the power supply, only the power cable is connected to supply only the power.

Specifically, a buried submarine acoustic sensor power supply system according to an embodiment of the present invention includes a plurality of acoustic sensor modules 150 for sensing acoustic signals in water, A first power supply means (not shown) connected to one end of the acoustic sensor in the longitudinal direction to supply power, and a second power supply means (not shown) connected to the other end of the underwater acoustic sensor for supplying power .

At this time, power can be supplied from both ends of the underwater acoustic sensor at the same time, and each of the acoustic sensor modules 150 is supplied with power from any one of the first power supply unit (not shown) and the second power supply unit It is possible to adjust the power to be supplied only through the means.

The first power supply means (not shown) and the underwater acoustic sensor are connected by a first cable 310, and the first cable 310 includes a power supply cable and a signal transmission cable. It is preferable that the second power supply means (not shown) and the underwater acoustical sensor are connected by a second cable 320 and the second cable is a power supply cable. Like the first cable 310, Transmission cables may also be included.

4 is a schematic diagram illustrating a method of supplying power to a buried underwater acoustic sensor power supply system according to an embodiment of the present invention.

Referring to FIG. 4, the underwater acoustic sensor includes a sensor unit 100 for sensing an underwater acoustic signal, a sensor unit 100 connected to one end of the sensor unit 100, A first power supply module 210 for supplying power from the first power supply unit to the sensor unit 100 and a second power supply unit connected to the other end of the sensor unit 100 for supplying power from the second power supply unit A second power supply module 220 for supplying the signal to the sensor unit 100 and a signal transmission module 500 for transmitting the signal sensed by the sensor unit 100 to the outside.

At this time, it is preferable that the power source uses a DC power source to supply power to the long sensor unit 100.

4, the first power supply module 210 includes a first voltage converter 215 for adjusting a voltage of a power source applied from the first power supply unit (not shown) And the second power supply module 220 may include a second voltage converter 225 for adjusting a voltage of a power source applied from the second power supply unit (not shown).

The first voltage converter 215 and the second voltage converter 225 may be DC-DC converters. Filters for eliminating input power noise and output power noise may be provided in front of and behind the respective voltage converters, respectively. Can be applied.

5 is a schematic diagram illustrating an internal structure of a buried underwater acoustic sensor power supply system according to an embodiment of the present invention.

5, the sensor unit 100 may include a plurality of the acoustic sensor modules 150 arranged in a line, and each of the plurality of acoustic sensor modules 150 senses a sound wave, An amplifier for amplifying the converted signal, and an individual power supply for applying power to the acoustic sensor and the amplifier.

In this case, the individual power supply may include a DC-DC converter for converting to a low voltage, and filters for eliminating input power noise and output power noise may be applied to the front and back of the DC-DC converter, respectively.

Each of the plurality of acoustic sensor modules 150 is electrically connected to the first power supply module 210 through a first conductive line 410 and the second power supply module 220 and the second conductive line 420, respectively.

The first conductor (410) includes a first switch (415) capable of controlling the supply of power to the downstream in the longitudinal center portion. The second conductor (420) is connected to a power supply And a second switch 425 capable of controlling the second switch 425.

At this time, the respective switches can be remotely controlled from the outside, and the positions provided in the respective conductors should be the same. That is, any one of the acoustic sensor modules 150 can not be located between the first switch 415 and the second switch 425. When the first power supply module 210 and the second power supply module 220 are in the normal state, the first switch 415 and the second switch 425 are both off do.

Accordingly, when both the first power supply module 210 and the second power supply module 220 are in a normal state, the respective acoustic sensor modules 150 are connected to the first power supply module 210 and the second power supply module 220, The power supply module 220 is connected to the first and second leads 410 and 420. The power supply module 220 is connected to the first and second leads 410 and 420, 1 switch 415 and the second switch, the power is finally supplied through only one power supply module.

That is, when both of the first power supply module 210 and the second power supply module 220 are in the normal state, the power is supplied only through the power supply module located near the central portion where the respective switches are located I will receive.

However, when any one of the first power supply module 210 and the second power supply module 220 fails, the acoustic sensor module 150 located near the power supply module that is faulty on the basis of the respective switches The power can not be supplied. Accordingly, when any one power supply module fails, the switch connected to the power supply module in a normal state can be turned on to supply power to the downstream, thereby minimizing the detection operation gap.

6 is a flowchart illustrating a method of supplying a buried underwater acoustic sensor power using a buried underwater acoustic sensor power supply system according to an embodiment of the present invention.

A method of supplying a buried type underwater acoustic sensor using a buried type underwater acoustic sensor power supply system according to an embodiment of the present invention includes simultaneously supplying power at both ends of the underwater sound sensor (S100); Determining whether each of the first power supply module 210 and the second power supply module 220 has failed (S200); Controlling a switch connected to a normal power supply module according to the determination result (S300); . ≪ / RTI >

At this time, the power supply step S100 is performed while the first switch 415 and the second switch 425 are both off. So that each acoustic sensor module 150 receives power only through one power supply module.

When both the first power supply module 210 and the second power supply module 220 are in normal operation, the first switch 415 and the second switch 425 are operated in the switch control step S300 (OFF) state (S300 ').

However, if the power supply module of any one of the first power supply module 210 and the second power supply module 220 fails, the first power supply module 210 and the second power supply module 220, The switch connected to the normally operating power supply module is turned on via the remote control, thereby enabling power supply to the downstream side from the corresponding wire.

That is, even if a failure occurs in any one of the power supply modules, it is possible to supply power to all the acoustic sensor modules 150 through the normal power supply module, thereby minimizing detection operation space.

Although the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, The present invention is not limited thereto. It will be apparent to those skilled in the art that various substitutions, modifications and variations are possible within the scope of the present invention, and it is obvious that those parts easily changeable by those skilled in the art are included in the scope of the present invention .

100:
150: acoustic sensor module
210: first power supply module
220: second power supply module
215: first voltage converter
213, 217: first power source noise filter
223,227: Second power supply noise filter
225: second voltage converter
320: Second cable
310: first cable
500: Signal transmission module
410: first conductor
415: first switch
420: second lead
425: second switch

Claims (17)

1. A submerged line array underwater acoustic sensor comprising N acoustic sensor modules for sensing acoustic signals in water (N is a natural number, N > = 2)
First power supply means connected to one longitudinal end of the underwater acoustic sensor for supplying power;
And a second power supply means connected to the other end of the underwater acoustic sensor for supplying power, wherein power can be supplied from both ends of the underwater acoustic sensor at the same time, and each of the first and second power supply means and And the power is supplied only through one of the two power supply means
The underwater acoustic sensor includes:
A sensor unit for sensing an underwater acoustic signal;
A first power supply module connected to one end of the sensor unit and supplying power to the sensor unit;
A second power supply module connected to the other end of the sensor unit, for supplying a power source applied from the second power supply unit to the sensor unit; And
And a signal transmission module for transmitting a signal sensed by the sensor unit to the outside,
Wherein each of the N acoustic sensor modules is electrically connected to the first power supply module through a first lead and is electrically connected to the second power supply module through a second lead, The first conductor and the second conductor are connected to each other,
And a first switch capable of controlling power supply is provided on the first lead between the Mth (M <N, M is a natural number) th acoustic sensor module and the (M + 1) th acoustic sensor module, And a second switch capable of controlling power supply is provided on the second lead between the (M + 1) -th acoustic sensor module. delete The method according to claim 1,
Wherein the power source is a DC power source.
The method according to claim 1,
Wherein the first power supply module includes a first voltage conversion device for adjusting a voltage of a power supply applied from the first power supply unit and the second power supply module is connected to the power supply unit And a second voltage conversion device for adjusting the voltage of the submersible underwater acoustic sensor.
The method according to claim 1,
Wherein the sensor unit is connected to the N acoustic sensor modules in a line.
6. The method of claim 5,
Wherein each of the N acoustic sensor modules comprises: an acoustic sensor for sensing a sound wave and converting it into an electric signal;
An amplifier for amplifying the converted signal;
A separate power supply for applying power to the acoustic sensor and the amplifier;
Wherein the at least one underwater acoustic sensor power supply system comprises:
delete delete The method according to claim 1,
Wherein each of the first switch and the second switch is remotely controllable.
The method according to claim 1,
Wherein each of the N acoustic sensor modules is powered from a power supply module of any one of the first power supply module and the second power supply module.
The method according to claim 1,
The first switch may be turned ON / OFF according to whether the second power supply module is faulty, and the second switch may be turned ON / OFF according to the failure of the first power supply module. (OFF). &Lt; / RTI &gt;
The method according to claim 1,
Wherein the first power supply means and the underwater acoustical sensor are connected by a first cable, and the first cable comprises a power supply cable and a signal transmission cable.
The method according to claim 1,
Wherein the second power supply means and the underwater acoustic sensor are connected by a second cable and the second cable is a power supply cable.
A method of supplying a buried underwater acoustic sensor power using a buried type underwater acoustic sensor power supply system according to claim 1,
Simultaneously supplying power at both ends of the underwater acoustic sensor;
Determining whether each of the first power supply module and the second power supply module has failed;
Controlling a switch connected to a normal power supply module according to the determination result;
Lt; / RTI &gt;
Wherein the step of supplying power is performed while both the first switch and the second switch are turned off,
Wherein when the first power supply module and the second power supply module are both in normal operation, the first switch and the second switch are each kept in an OFF state in the step of controlling the switch, A method of supplying a buried type underwater acoustic sensor. delete delete 15. The method of claim 14,
In the switch control step, when the power supply module of any one of the first power supply module and the second power supply module is failed, the first power supply module and the second power supply module, Wherein the switch is turned on when the underwater acoustic sensor is turned on.

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