KR102329999B1 - Hydrographic survey system for correcting changes in waterline to reduce surveying error of offshore survey ship - Google Patents

Abstract

The present invention relates to a hydrographic survey system. More specifically, the present invention relates to a hydrographic survey system which comprises: a seawater tank installed on a rear side inside a hull; a center of gravity sensor installed in the center inside the hull; a controller installed in a control tower of the hull and operating a pump connected to the seawater tank in accordance with a detection signal of the center of gravity sensor, and filling the seawater tank with seawater or discharging the water in the seawater tank to the outside; a front/rear center of gravity control unit installed apart from the center of gravity sensor with a distance in a vertical direction on the longitudinal center of the hull; a survey instrument installation unit installed on an upper surface of the hull and with a GPS survey instrument mounted; a supporter engaged with a lower side of the survey instrument installation unit and supporting the survey instrument installation unit; and a laser survey instrument mounted on an upper side of the survey instrument installation unit and surveying the coastal topography. According to the present invention, the hydrographic survey system is able to resolve the surveying error caused by changes in the waterline as much as the oil is used in comparison with the waterline when the survey is started with oil charged in the offshore survey ship, perform the hydrographic survey based on precise information, and correct changes in the waterline to reduce surveying errors of the offshore survey ship.

Description

A hydrographic survey system capable of compensating for changes in the waterline so as to reduce the measurement error of the ocean surveying vessel.

The present invention relates to a waterway survey system, and more particularly, to a waterway survey system capable of correcting a change in a waterline so as to reduce a measurement error of an ocean surveying vessel.

Waterway survey refers to waterway survey, ocean observation, route survey, and ocean topographic survey for the purpose of maritime traffic safety, conservation, use, and development of the ocean, securing maritime jurisdiction and preventing maritime disasters. It also includes various surveys necessary for repair work and surveying the natural environment of the coastline and coast.

Recently, as the sea level rises due to climate change caused by global warming and the intensity and frequency of typhoons increase, there is concern about flood damage caused by typhoons and tsunamis on the coast. In order to protect the property, a precise topographical map of the coast that can accurately predict the flooded area is required.

An ocean survey vessel refers to a ship that is equipped with various measuring instruments and performs operations in order to observe, measure, and perform various missions in the ocean.

Among them, ocean surveying vessels are also commonly referred to as waterway survey ships, and based on the Act on Surveying, Waterway Survey and Cadastration, maritime traffic safety, ocean conservation and use development, securing maritime jurisdiction, and preventing maritime disasters. It refers to a vessel used for the survey of geomagnetism, gravity, topography, and geology, and the survey of the coastline and the land attached thereto.

In particular, such a waterway survey is very important as it is a preliminary survey in order to mark the obstacles at the entrance of important waterways and ports on a precise chart in case of emergency.

However, there is a problem in that the accuracy of the survey is lowered because the waterline changes as much as oil is used compared to the waterline when the survey is started after filling the ocean survey vessel with oil.

In addition, there is a disadvantage in that accurate data cannot be obtained because poor surveying is caused even when the ocean survey vessel is rolled back and forth or the center of gravity is tilted to one side due to the change in the center of gravity.

Furthermore, in the related art, since the survey of the ocean reference point and the survey of the shoreline are performed individually with separate equipment, there is a problem in that the survey work is very cumbersome and each equipment must be transported separately.

The matters described as the background art above are only for improving understanding of the background of the present invention, and should not be taken as an acknowledgment that they correspond to the prior art already known to those of ordinary skill in the art.

The present invention is to solve the problems of the prior art described above, and to solve the survey failure caused by the change in the waterline as much as the oil is used compared to the waterline when the survey is started after filling the ocean survey vessel with oil. The purpose of this is to provide a channel survey system that can correct changes in the waterline so as to reduce the measurement error of an ocean surveying vessel that can perform a hydrographic survey based on accurate information.

In addition, the present invention provides a waterway survey system capable of correcting changes in the waterline so that it is possible to facilitate the survey of the ocean reference point and at the same time reduce the measurement error of the ocean surveying line that can reliably survey the coastal topography at sea. Another There is a purpose.

The technical problems to be achieved by the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those of ordinary skill in the art from the description of the present invention. .

The configuration of the present invention for achieving the above object is a seawater tank installed in the rear inside the hull; a center of gravity sensor installed in the inner center of the hull; A controller installed in the control tower of the hull and controlling to fill the seawater tank with seawater or to discharge water from the seawater tank by operating a pump connected to the seawater tank according to the detection signal of the center of gravity sensor; Front and rear center of gravity adjustment unit installed at intervals up and down so as not to interfere with the center of gravity sensor in the center of the length of the hull; It is installed on the upper surface of the hull and the GPS measuring instrument is mounted on the measuring instrument mounting table; a support mechanism coupled to the lower part of the measuring instrument mounting table to support the measuring instrument mounting unit; and a laser surveyor that is mounted on the top of the surveyor installation table and can survey the coastal terrain. It is characterized in that it includes.

In the waterway survey system capable of correcting the change of the waterline so as to reduce the measurement error of the ocean surveying vessel according to the embodiment of the present invention, the front and rear center of gravity adjustment unit is a slide base for guiding the first and second sliding blocks to move ; first and second motors respectively installed at both ends of the slide base at intervals; and first and second ball screws respectively connected and fixed to the respective motor shafts of the first and second motors; Including, wherein the first and second ball screws are installed to penetrate through the first and second sliding blocks, respectively, the first ball screw is installed to be screw-coupled to the first sliding block, and the second sliding block is installed to pass through without screw coupling, , the second ball screw is installed to be screw-coupled with the second sliding block, and the first sliding block is installed through the screw without screw coupling, and a pair of hemispherical grooves are formed on the lower surface of the first and second sliding blocks, respectively, and a hemispherical shape The ball is inserted into the groove, and the ball is preferably installed so that a part of the ball is exposed through the ball hole formed in the ball cover while being supported so as not to be separated by the ball cover.

In the waterway survey system capable of correcting the change of the waterline so as to reduce the measurement error of the ocean surveying vessel according to an embodiment of the present invention, the surveyor installation includes: a vertical support installed in a vertical direction; A GPS mounting part installed to be movable up and down on the side of the vertical support and mounted with a GPS measuring instrument; Horizontal mounting bracket installed in the horizontal direction on top of the vertical support; a rotating part installed on the upper part of the horizontal mounting table; a height part coupled to the upper part of the rotating part; a pair of air buffers coupled to both sides of the upper and lower parts; a left and right moving part that is horizontally coupled to the upper part of a pair of air buffers; and a laser meter coupled to the upper part of the left and right moving part; It is preferable to include

In the waterway survey system capable of correcting the change of the waterline so as to reduce the measurement error of the ocean surveying vessel according to an embodiment of the present invention, the rotating unit includes: a rotating body coupled to the upper part of the horizontal installation table and having a spherical rotating hole therein; and a rotation insertion unit formed in a spherical shape with an empty interior so as to be rotatably inserted into the rotation hole; Including, a rotary insertion groove is recessed in a ring shape at the lower end of the rotary hole of the rotary body, and a rotary protrusion protrudes outward in a ring shape to be inserted into the rotary insertion groove at the lower end of the rotary insert part, and the rotary insert It is preferable that a plurality of incision grooves are formed in the front-rear direction on the side of the part.

In the waterway survey system capable of correcting the change of the waterline so as to reduce the measurement error of the ocean surveying vessel according to the embodiment of the present invention, the air buffer is coupled to the upper part of the height and the filling space is provided so that air can be filled inside. an air housing formed; an air flow unit coupled to the upper portion of the air housing and having air holes vertically formed in the center; A pair of air openings and openings coupled to the top of the air hole and having an elastic force; a ring-shaped air ring mounted inside the air flow unit and coupled to surround the air hole; and an upper housing coupled to an upper portion of the air flow unit; Including, wherein the air housing and the air flow portion is made of a rubber material having elasticity, the air ring is made of a metal material, a plurality of vent holes are formed on the side surface of the upper housing, the lower end of the air opening and closing portion is the upper end of the air hole The contact support end is formed to protrude downward so as to be in contact with the inner wall to support the air opening and closing part, and the air ring is vibrated by the vibration transmitted from the air housing, and accordingly, the air flow part is vibrated to open the air opening and closing part. , it is preferable that air flows through the vent hole, the air hole and the filling space of the upper housing.

In the waterway survey system capable of correcting the change of the waterline so as to reduce the measurement error of the ocean surveying vessel according to an embodiment of the present invention, the left and right moving part is coupled to the upper part of the air buffer and has a moving hole along the longitudinal direction on the upper surface left and right cases formed; a pair of sliding parts coupled to both inner sides of the left and right cases and having sliding holes formed along the longitudinal direction; a pair of left and right rods each having one end slidably inserted into the pair of sliding parts; a central metal part of a metal material coupled to the center of a pair of left and right rod parts; an upper and lower rod part extending to the upper part of the central metal part and exposed to the outside through a moving hole; a central magnet coupled to the center of the inner lower part of the left and right cases; A pair of left and right magnets spaced apart from each other on the basis of the central magnet and exhibiting magnetism; a pair of moving rails coupled to the upper surfaces of the left and right cases and coupled to both sides in the front and rear directions based on the moving holes along the longitudinal direction; and a rail moving unit coupled to the side of the upper and lower rods and accommodated in a pair of moving rails and capable of sliding along the longitudinal direction; Including, the central magnet has a relatively larger size than a pair of left and right magnets and has a relatively large magnetism, and the central metal part is usually located in the center by the magnetic force applied by the central magnet, and the left and right cases are turned to one side. As it tilts, the central metal part also moves to one side by the weight of the central metal part and the magnetic force of the left and right magnets. It is preferable to do

In the waterway survey system capable of correcting the change of the waterline so as to reduce the measurement error of the ocean surveying vessel according to the embodiment of the present invention, the support mechanism includes: a support panel that can be selectively fastened to the lower end of the vertical support; a pair of support legs rotatably installed on one side of the support panel; and a pair of support wheels coupled to the other side of the support panel; It is preferable to include

The present invention having the above configuration solves the survey failure caused by the change in the waterline as much as the amount of oil is used compared to the waterline when the survey is started after filling the ocean survey vessel with oil. It is possible to survey and has the effect of making it possible to create a chart reflecting this information.

In addition, since the present invention has a coastline survey function, it is possible to perform coastline survey together with the ocean reference point survey, and it has the effect of making the survey work convenient because the movement of the equipment is convenient.

1 is a diagram schematically illustrating a waterway survey system capable of correcting a change in a waterline so as to reduce a measurement error of a marine surveying vessel according to an embodiment of the present invention;
Figure 2 is an exemplary view showing an excerpt of the front and rear center of gravity adjusting unit constituting the waterway irradiation system according to an embodiment of the present invention.
Figure 3 is a side view of Figure 2;
Figure 4 is a partial cross-sectional view showing a buffer according to an embodiment of the present invention.
Figure 5 is a view showing a state of the instrument mounting table according to an embodiment of the present invention.
Figure 6 is a view showing a partial cross-sectional view of the rotating part according to an embodiment of the present invention.
7 is a view showing a cross-sectional view of a height part according to an embodiment of the present invention.
8 is a view showing a cross-sectional view of an air buffer according to an embodiment of the present invention.
Figure 9 is a perspective view showing the state of the left and right moving part according to an embodiment of the present invention.
10 is a view showing a cross-sectional view of the left and right moving part according to an embodiment of the present invention.
11 is an exemplary diagram schematically illustrating a state in which a surveying instrument mounting base moves on the ground according to an embodiment of the present invention.
12 is an exemplary view schematically illustrating a state in which a surveyor mounting stand surveys an ocean reference point according to an embodiment of the present invention.

Hereinafter, based on the accompanying drawings, the present invention will be described in detail so that those of ordinary skill in the art can easily carry out the present invention. However, the present invention may be embodied in many different forms and is not limited to the embodiments described herein.

In order to clearly explain the present invention, parts irrelevant to the description are omitted, and the same reference numerals are given to the same or similar elements throughout the specification.

In addition, the terms or words used in the present specification and claims should not be construed as being limited to their ordinary or dictionary meanings, and the inventor should properly understand the concept of the term in order to best describe his invention. Based on the principle that it can be defined, it should be interpreted as meaning and concept consistent with the technical idea of the present invention.

1 is a diagram schematically illustrating a waterway survey system capable of correcting a change in a waterline so as to reduce a measurement error of a marine surveyor according to an embodiment of the present invention.

As shown, the seawater tank 110 is installed inside the rear side of the hull 100 according to the present invention. At this time, a pump (not shown) is connected to the seawater tank 110 to fill or discharge seawater.

And, the center of gravity sensor 120 is installed in the inner center of the hull 100.

The center of gravity detection sensor 120 sucks seawater corresponding to its weight into the seawater tank 110 in order to prevent the hull 100 from floating by weight reduction as the fuel used for propulsion of the hull 100 decreases. It is a sensor used to calculate and manage weight so that

In addition, the controller 130 is installed in the control tower 140 , and operates a pump according to the detection signal of the center of gravity sensor 120 to fill the seawater tank 110 with seawater or the seawater tank 110 inside. control to keep the waterline constant at all times.

Therefore, it is possible to maintain the measurement accuracy during the waterway survey.

FIG. 2 is an exemplary view showing an excerpted front and rear center of gravity adjusting unit constituting a waterway irradiation system according to an embodiment of the present invention, and FIG. 3 is a side view of FIG. 2 .

In addition to this, in the present invention, the front and rear center of gravity adjustment unit 200 as in the example of FIG. 2 may be further provided inside the hull 100 .

The front and rear center of gravity control unit 200 supplements the control function of the seawater tank 110, and a kind of ballast water control method through the seawater tank 110 takes a lot of time and has to be adjusted in quantitative parts, so it is quick, fall in accuracy.

For this reason, when the center of gravity of the hull 100 is shifted due to the fact that the seawater tank 110 is installed on the stern side of the hull 100, the hull 100 may roll back and forth.

In order to quickly solve this problem, the front and rear center of gravity adjustment unit 200 may be installed at intervals up and down so as not to interfere with the center of gravity sensor 120 .

The front and rear center of gravity control unit 200 is installed at the center of the length of the hull 100, particularly the center of gravity, and includes a slide base 210 as illustrated in FIGS. 2 and 3 .

The slide base 210 is a plate member formed in a 'U' shape, and is a means for guiding the first and second sliding blocks 220 and 222 to move smoothly without external interference.

In addition, first and second motors 230 and 232 are installed at both ends of the sliding base 210 at intervals, respectively, and first and second ball screws 240 and 242 are provided on the respective motor shafts of the first and second motors 230 and 232 . are connected and fixed, and the ends of each of the first and second ball screws 240 and 242 are rotationally supported so that they can be rotated in place by bearings, although not shown.

At this time, the first and second ball screws 240 and 242 are installed through the first and second sliding blocks 220 and 222, respectively. At this time, the first ball screw 240 is screwed with the first sliding block 220, That is, it is installed to be toothed and the second sliding block 222 is installed to pass through without screw coupling.

Similarly, the second ball screw 242 is screw-coupled with the second sliding block 222, that is, tooth-coupled, and the first sliding block 220 is installed to pass through without screw coupling.

Therefore, the first and second sliding blocks 220 and 222 can be installed on the same line, that is, in-line, and they are all weight bodies, and the initial state, that is, the home position, with the same distance away from the center of gravity of the hull 100 . remain in state

Then, when a difference occurs in the center of gravity and the controller 130 detects this, the first and second sliding blocks are controlled by controlling the rotation of the first and second motors 230 and 232 while adjusting the amount of seawater in the seawater tank 110 . By adjusting the positions of 220 and 222, it is possible to quickly and easily correct the center of gravity of the hull 100 immediately.

In this way, the center of gravity in the forward and backward directions of the hull 100 is stabilized, and the waterline adjustment is subsequently made through the seawater tank 100 to enable stable operation and accurate measurement.

At this time, for smooth sliding of the first and second sliding blocks 220 and 222, a pair of hemispherical grooves (HOM) are respectively formed on the lower surfaces of these blocks, and a ball (BAL) is inserted into the hemispherical grooves (HOM), The ball BAL is installed so that a part of the ball BAL is exposed through the ball hole HL formed in the ball cover COV while being supported so as not to be separated by the ball cover COV, and the exposed ball BAL ) is in rolling contact with the upper surface of the slide base 210 so that the first and second sliding blocks 220 and 222 come into contact with the slide base 210 with minimal frictional force, thereby enabling smooth sliding.

4 is a partial cross-sectional view showing a buffer according to an embodiment of the present invention.

As shown in FIG. 4 , in the present invention, a buffer 300 is further installed at the upper end of the peripheral outer wall of the hull 100 to prevent a collision with the apron when berthing and mooring after entering the port, so that the hull 100 is damaged. It may be configured to increase the effect of preventing it.

Usually, it takes the form of tying the tire, but it is unsightly in appearance, and if the rope that binds the function is weak, the tire is not in place while moving, and sometimes damage due to a collision with the apron occurs.

In the present invention, in order to eliminate such a problem, the first rubber plate spring 310 is convexly fixed to the outer wall of the hull 100 , and the second rubber plate spring 320 is contacted in a direction opposite to the first rubber plate spring 310 . The second rubber plate spring 320 has a circular cross section that is tightly fixed to the outer wall of the hull 100 in the form of a housing that completely surrounds the first rubber plate spring 310. It is fixed to the inner wall of the rubber cover (330).

Then, when an external force acts or collides with an object, the rubber cover 330 is first deformed and elastically buffered, and then the second rubber plate spring 320 is secondarily deformed and elastically buffered secondarily, and then As the first rubber plate spring 310 is deformed tertiarily, it is elastically buffered tertiarily, so that perfect elastic absorption and buffering is made to keep the hull 100 more safely and the appearance quality is also improved.

5 is a view showing the appearance of a measuring instrument mounting table according to an embodiment of the present invention.

On the other hand, the waterway survey system according to the present invention is installed on the upper surface of the hull 100 and is detachably coupled to the measuring instrument mounting base 800 on which the GPS measuring instrument (G) is mounted, and detachably attached to the lower part of the measuring instrument mounting table 800. It may further include a support mechanism 900 that can be supported and a laser surveyor 840 that is mounted on the upper part of the surveyor mounting table 800 to measure the coastal terrain.

The measuring instrument mounting base 800 includes a vertical support 810, a GPS mounting unit 820, a horizontal mounting unit 830, a rotating unit 600, a height unit 500, a pair of air buffer units 700 and a left and right moving unit ( 400).

The vertical support 810 is installed in a vertical direction. The vertical support 810 has a bar shape as a whole, and a screw thread is formed on an outer circumferential surface.

The GPS mounting part 820 is installed to be movable up and down on the side of the vertically installed vertical support 810 . The GPS mounting unit 820 is equipped with a GPS measuring instrument (G), which is used for surveying a marine reference point.

The horizontal mount 830 is installed on the upper end of the vertical support 810 in the horizontal direction. The rotating part 600 is installed on the upper part of the horizontal installation table, the height part 500 is coupled to the upper part of the rotation part, the air buffer part 700 is coupled to the upper part of the height part, and the left and right moving part 400 is on the upper part of the air buffer part. is mounted, and the laser meter 840 is coupled to the upper part of the left and right moving part.

In addition, a level gauge 841 is installed in a portion adjacent to the laser meter 840 to measure the level of the laser meter. A digital level may be used as the level 841 , and when the horizontal value of the laser meter 840 measured by the level 841 is out of a preset reference range, a re-survey signal is output.

The laser surveyor 840 may use a land-based laser scanner system (RIEGL LMS-Z420i), and is composed of a long-distance 3D scanner and a high-definition digital camera (NICON-D20) linked thereto.

The laser surveyor 840 surveys the coastal terrain, and further includes a function of classifying the surveyed data into re-survey data when receiving a re-survey signal from the level 841 during coastal terrain surveying.

The support mechanism 900 includes a support panel 910 that can be selectively fastened to the lower end of the vertical support 810, a support leg 920 that is rotatably installed on one side of the support panel, and the other of the support panel. It includes a support wheel 930 coupled to the side.

6 is a view showing a partial cross-sectional view of the rotating part according to an embodiment of the present invention.

As shown, the rotating unit 600 includes a rotating body 610 coupled to the upper portion of the horizontal mounting table 830 and a rotating inserting unit 620 coupled to the lower portion of the height unit 500 .

The rotating body 610 is coupled to the upper portion of the horizontal mounting table 830, and a spherical rotating hole 611 is formed therein. At the lower end of the spherical rotation hole 611, a rotation insertion groove 612 is recessed in a ring shape.

The rotation inserting part 620 is coupled to the lower part of the height part 500 and is formed in a spherical shape with an empty interior so that it can be rotatably inserted into the spherical rotation hole 611 .

At the lower end of the rotary inserting part 620, a ring-shaped rotary protrusion 621 protrudes outwardly so that it can be inserted into the rotary inserting groove 612, and a plurality of cut-out grooves ( 622) is formed in the front-rear direction.

The plurality of cut-out grooves 622 provide an elastic restoring force when the rotation insertion unit 620 is inserted into the rotation hole 611 . That is, by the plurality of cut-out grooves 622 , the rotation insertion unit 620 is retracted when entering the rotation hole 611 , and is unfolded after the insertion into the rotation hole 611 is completed.

When the rotation insertion part 620 completes the insertion into the rotation hole 611, since the rotation projection 621 is inserted into the rotation insertion groove 612, the rotation insertion part 620 is not separated and the rotation insertion groove 612 ) can be rotated along the path of

Some of the plurality of cut-out grooves 622 extend upward from the lower end of the rotary inserting unit 620 , and the rest of the plurality of cut-out grooves 622 extend downward from the upper end of the rotary inserting unit 620 .

That is, since the plurality of cut-out grooves 622 are alternately processed at the upper end and lower end of the rotary insert 620, the rotary insert 620 is uniform when the rotary insert 620 is inserted into the rotary hole 611. can be deformed to

In the embodiment of the present invention, since the rotary insert 620 is detachable from the rotating body 610, when the user does not perform a measurement operation, the rotating insert 620 is separated from the rotating body 610 to separate the laser measuring instrument 840 from the rotating body 610. ) can be completely separated, and the laser measuring instrument 840 can be rotatably coupled by inserting the rotating insert 620 into the rotating body 610 when measuring.

7 is a view showing a cross-sectional view of a height part according to an embodiment of the present invention.

As shown, the height part 500 is accommodated so as to be slidable up and down in the cylindrical height case 510 and the height case 510 with an empty interior, and a plurality of fixing grooves 521 are formed on the side surface. It is coupled to the upper end of the elevation rod 520 and the elevation case 510 and includes a fixing rod 530 having a fixing rod 532 that can enter into a plurality of fixing grooves 521 .

The height case 510 is coupled to the upper portion of the rotating part 600, and the height spring 511 is accommodated therein. The height spring 511 connects between the lower end of the height rod 520 and the inner lower end of the height case 510, and provides an elastic force so that the height rod 520 can move upward.

The height rod 520 is coupled to the height case 510 so as to be movable up and down, and the height of the laser measuring instrument 840 coupled thereto may be varied according to the vertical movement of the height rod 520 .

The height fixing part 530 is accommodated in a fixed case 531 coupled to the upper end of the height case 510 so as to be slidable left and right in the fixed case 531, and the ends enter a plurality of fixing grooves 521. A fixed rod 532 that is capable of being accommodated in the interior of the fixed case 531 and connected between the right end of the fixed rod 532 and the inner right end of the fixed case 531 and a fixed spring 533 and fixed case 531 of It is mounted on the upper portion and comprises a fixing limiting portion 534 that can limit the movement of the fixing rod (532).

The fixing case 531 has an empty interior and can accommodate the fixing rod 532 . A limiting hole 531a is formed in the upper surface of the fixing case 531 so that the limiting rod 538 of the fixing limiting part 534 to be described later can enter.

The fixing rod 532 is coupled to the fixing case 531 so as to be movable from side to side, and an end of the fixing rod 532 is formed in a wedge shape. Since the end of the fixing rod 532 is formed in a wedge shape, the fixing rod 532 can ride over the plurality of fixing grooves 521 formed in the height rod 520 .

That is, when the height rod 520 moves up and down, the fixed rod 532 moves to the left in the portion where the fixing groove 521 is located, and in the portion where the fixing groove 521 is not located, the height of the rod 520 . It comes into contact with the outer surface and moves to the right.

The fixing rod 532 may be moved to the left and right by the fixing spring 533 and then return to its original position. A rod groove 532a is formed on the upper surface of the fixing rod 532 at a position corresponding to the limiting hole 531a of the fixing case 531 . This rod groove 532a can also enter the limiting rod 538 of the fixing limiting part 534 to be described later.

The fixing limiting part 534 includes a limiting plate 535 coupled to the upper surface of the fixing case 531, a pair of limiting springs 536 coupled to the upper end of the limiting plate 535, and a limiting spring 536. It is made to include a limiting rod 538 coupled to the lower end of the ring-shaped limiting moving part 537 and the limiting moving part 537 connected to the lower end of the.

The pair of limiting springs 536 apply an elastic force so that the limiting moving part 537 and the limiting rod 538 can be moved downward. The limiting rod 538 may enter the limiting hole 531a of the fixing case 531 and the rod groove 532a of the fixing rod 532 .

Looking at the process of adjusting the height of the height part 500 according to the present invention, first, the limiting movement part 537 overcomes the elastic force of the pair of limiting springs 536 and is moved upward. According to the movement of the limiting moving part 537, the limiting rod 538 is also separated from the limiting hole 531a and the rod groove 532a, and the fixed rod 532 can freely move left and right.

Next, by sliding the height rod 520 up and down to determine the degree to which the height rod 520 is inserted into the height case (510). At this time, the height spring 511 provides an elastic force so that the height rod 520 can move upward.

When the height rod 520 is moved up and down, the fixing rod 532 can ride over the plurality of fixing grooves 521 and move to the left in the portion where the fixing groove 521 is located, and the fixing groove 521 . In a portion not located in this position, it comes into contact with the outer surface of the height rod 520 and moves to the right.

When the height of the lifting rod 520 is determined, the limiting moving part 537 is placed so that the limiting rod 538 is moved downward by the elastic force of the limiting spring 536, and the lower end of the limiting rod 538 is limited It is inserted into the hole 531a and the rod groove 532a to prevent the fixing rod 532 from moving any more.

Accordingly, the height part 500 does not move up and down anymore and the height is fixed, and the height of the laser measuring instrument 840 coupled to the upper part of the height part 500 is also determined and fixed.

8 is a view showing a cross-sectional view of the air buffer according to an embodiment of the present invention.

As shown, the air buffer unit 700 includes an air housing 710 , an air flow unit 720 , a pair of air opening/closing units 740 , an air ring 730 and an upper housing 750 . . The air buffer unit 700 is coupled to the upper portion of the height unit 500, and functions to alleviate vibration or shock applied from the ground.

A filling space 711 is formed in the air housing 710 so that air can be filled therein. The air housing 710 is made of a rubber material having elasticity, and is coupled to the upper part of the height part 500 .

The air flow unit 720 is coupled to the upper portion of the air housing 710 , and is made of an elastic rubber material like the air housing 710 . In the center of the air flow unit 720, an air hole 721 is formed vertically through it. Air may flow into the upper portion of the air flow unit 720 and the filling space 711 of the air housing 710 through the air hole 721 .

The pair of air opening/closing units 740 is coupled to the upper end of the air hole 721 . The air opening/closing unit 740 is made of a rubber material having elasticity, and is coupled to the upper surface of the air flow unit 720 in a cantilever shape.

That is, the air opening/closing unit 740 is rotatable up and down based on a portion coupled to the upper surface of the air flow unit 720 . When the air opening/closing unit 740 moves downward, the upper end of the air hole 721 is closed, and when the air opening/closing unit 740 moves upward, the upper end of the air hole 721 is opened.

In the center of the lower surface of the air opening/closing unit 740 , a contact support end 741 is formed to protrude downward so as to be in contact with the inner wall of the upper end of the air hole 721 to support the air opening/closing unit 740 . The air opening/closing unit 740 may firmly close the upper end of the air hole 721 without sagging downward by the contact support end 741 .

The air ring 730 is mounted inside the air flow unit 720 and is coupled to surround the air hole 721 . The air ring 730 is made of a metal material having a predetermined weight, and is formed in a ring shape. The air ring 730 functions to absorb the vibration transmitted from the air housing 710 .

The upper housing 750 is coupled to the upper portion of the air flow unit 720 . A plurality of vent holes 751 are formed on the side surface of the upper housing 750 , and air may flow through these vent holes 751 .

The air housing 710 vibrates by vibration or impact generated from the ground, and the air ring 730 is also vibrated by the transmitted vibration. Accordingly, the air flow unit 720 vibrates to open the air opening/closing unit 740, and as represented by a dotted line in the drawing, the vent hole 751, the air hole 721 and the filling space 711 of the upper housing 750 are shown. ) through which air flows.

As described above, the present invention has an advantage in that the damping force can be actively changed because the air in the filling space 711 can flow through the air hole 721 and the air opening and closing unit 740 .

For example, if the vibration applied from the ground is a high frequency, the vibration of the air housing 710 is increased and the vibration of the air ring 730 is also increased. is opened

When the air opening/closing unit 740 is opened, air flows through the vent hole 751 , the air hole 721 , and the filling space 711 of the upper housing 750 , and the sensitivity of the target frequency is increased to attenuate vibration. .

If the vibration applied from the ground is a low frequency, the vibration of the air housing 710 is reduced and the vibration of the air ring 730 is also reduced, and accordingly, the vibration of the air flow part 720 is also reduced so that the air opening and closing part 740 is closed. is closed

When the air opening/closing unit 740 is closed, the air inside the filling space 711 does not flow, and the sensitivity of the anti-resonance band frequency is increased to attenuate vibration.

9 is a perspective view illustrating a state of the left-right movement unit according to an embodiment of the present invention, and FIG. 10 is a cross-sectional view of the left-right movement unit according to an embodiment of the present invention.

As shown, the left and right moving part 400 includes a left and right case 410 , a pair of sliding parts 420 , a pair of left and right rod parts 430 , a central metal part 440 , and an upper and lower rod part 450 . , a central magnet 460 , left and right magnets 461 , a pair of moving rails 470 and a rail moving unit 480 .

The left and right cases 410 are coupled to the upper portion of the air buffer 700 . A space is formed inside the left and right cases 410 to accommodate various parts, and a moving hole 411 is formed on the upper surface of the left and right cases 410 in the longitudinal direction.

The pair of sliding parts 420 are coupled to both inner sides of the left and right cases 410 . A sliding hole 421 is formed through the inside of the sliding part 420 in the longitudinal direction. A plurality of recognition holes 422 are formed on the lower surface of the sliding hole 421 , and the plurality of recognition holes 422 are spaced apart from each other at equal intervals.

A recognition sensing unit 423 is mounted at an inner lower end of the sliding unit 420 . The recognition sensing unit 423 is spaced a predetermined distance downward from the plurality of recognition holes 422 , and is disposed parallel to the sliding hole 421 .

The pair of left and right rod parts 430 are respectively inserted into the pair of sliding parts 420 so that one end is slidable, and the center of the pair of left and right rod parts 430 has a metal central metal part 440 . is combined

A recognition unit 431 is coupled to an end of the left and right rods 430 , and the movement distance of the recognition unit 431 can be checked by the recognition detection unit 423 . In other words, as the left and right rod part 430 slides on the sliding part 420, the recognition part 431 also moves left and right inside the sliding hole 421. At this time, the recognition holes 422 arranged at equal intervals are The recognition unit 431 passes, and it is recognized by the recognition detection unit 423 to measure the moving distance of the left and right rods 430 .

The upper and lower rod parts 450 extend to the upper part of the central metal part 440 and are exposed to the outside through the moving hole 411 . A rail moving part 480 is coupled to the side of the upper and lower rod part 450 . The rail moving part 480 is formed in a disk shape and is accommodated in a pair of moving rails 470 to be slidable along the longitudinal direction.

The pair of moving rails 470 is coupled to the upper surface of the left and right cases 410 and coupled to both sides in the front and rear directions based on the moving hole 411 along the longitudinal direction. The moving rail 470 has a 'L'-shaped cross section, the upper end is in contact with the upper and lower rods 450 , and the lower end is in contact with the rail moving unit 480 .

The central magnet 460 is coupled to the center of the inner lower end of the left and right case 410 , and a pair of left and right magnets 461 are spaced apart from each other on both sides with respect to the central magnet 460 . Since the central magnet 460 and the pair of left and right magnets 461 are magnetic, a magnetic force may be applied to the central metal part 440 made of a metal material to stop the central metal part 440 .

The central magnet 460 has a relatively larger size than the pair of left and right magnets 461 and has a relatively large magnetism. Normally, the central metal part 440 is located in the center of the left and right cases 410 by the magnetic force applied by the central magnet 460, and as the left and right cases 410 are inclined to one side, the central metal part 440 is formed. The central metal part 440 also moves to one side of the central case by its own weight and the magnetic force of the left and right magnets 461, and when the left and right cases 410 return to horizontal again, the central magnet 460 exhibiting a relatively large magnetic field. ), the central metal part 440 returns to the center of the left and right cases 410 by the magnetic force.

As the central metal part 440 moves to the left or right in the left and right case 410, the upper and lower rod part 450 and the laser measuring instrument 840 coupled thereto may also move to the left or right, and accordingly It has the effect of improving accuracy by measuring a wide range.

11 is an exemplary view schematically illustrating a state in which a surveying instrument mounting base according to an embodiment of the present invention moves on the ground, and FIG. 12 is a schematic diagram illustrating a surveying instrument mounting base surveying a marine reference point according to an embodiment of the present invention It is an example diagram shown as .

In order to survey the coastline, the operator surveys an ocean reference point on land. The marine reference point survey is made through a stationary survey using another GPS surveyor along with the GPS surveyor G according to the present invention.

First, the operator separates the vertical support 810, the GPS mounting part 820, the GPS measuring instrument G, and the support mechanism 900 of the measuring instrument installation stand 800 from the hull 100, and then supports it as shown in FIG. Assemble the support panel 910 so that the support wheel 930 of the mechanism 900 faces the ground.

Then, the operator pushes the support mechanism 900 to move the GPS instrument G to the survey position for surveying the marine reference point.

When the movement is complete, as shown in FIG. 12 , the support panel 910 is turned over and the support legs 920 are reassembled to face the ground, and the support legs 920 are rotated so that the support mechanism 900 is mounted on the ground. do.

When the marine reference point survey is made, the operator loads the vertical support 810, the GPS mounting part 820, the GPS surveying instrument (G) and the support mechanism 900 of the measuring instrument installation stand 800 on the hull 100, and then the hull ( 100) is floated on the water surface, and the hull 100 is moved to a position opposite to the coastal terrain to be surveyed.

As described above, when the measuring instrument mounting table 800 is installed on the water surface, the operator uses the laser measuring instrument 840 to measure the topography of the coastline.

The present invention described above is not limited by the above-described embodiments and the accompanying drawings, and it is common in the technical field to which the present invention pertains that various substitutions, modifications and changes can be made without departing from the technical spirit of the present invention. It will be clear to those who have the knowledge of

100: hull 200: control unit 300: buffer
400: left and right moving part 410: left and right case 411: moving hole
420: sliding part 421: sliding hole 422: recognition hole
423: recognition sensing unit 430: left and right rod unit 431: recognition unit
440: central metal part 450: upper and lower rod part 460: central magnet
461: left and right magnets 470: moving rail 480: rail moving part
500: high and low part 510: high and low case 511: high and low spring
520: high and low rod 521: fixed groove 530: high and low fixed
531: fixed case 531a: limiting hole 532: fixed rod
532a: rod groove 533: fixed spring 534: fixed limiting part
535: limit plate 536: limit spring 537: limit movement part
538: limit rod 600: rotating part 610: rotating body
611: rotation hole 612: rotation insertion groove 620: rotation insertion part
621: rotation protrusion 622: cut groove 700: air buffer
710: air housing 711: filling space 720: air flow part
721: air hole 730: air ring 740: air opening and closing part
741: contact support end 750: upper housing 751: vent hole
800: measuring instrument mounting base 810: vertical support 820: GPS mounting part
830: horizontal mounting table 840: laser measuring instrument 841: level
900: support mechanism 910: support panel 920: support legs
930: support wheel

Claims (1)

a seawater tank installed in the rear of the hull; a center of gravity sensor installed in the inner center of the hull; a controller installed in the control tower of the hull and controlling to fill the seawater tank with seawater or to discharge water from the seawater tank by operating a pump connected to the seawater tank according to the detection signal of the center of gravity sensor; Front and rear center of gravity adjustment unit installed at intervals up and down so as not to interfere with the center of gravity sensor at the center of the length of the hull; It is installed on the upper surface of the hull and the GPS measuring instrument is mounted on the measuring instrument mounting table; a support mechanism coupled to the lower part of the measuring instrument mounting table to support the measuring instrument mounting unit; and a laser surveyor that is mounted on the top of the surveyor installation table and can survey the coastal terrain. including,
The front and rear center of gravity adjustment unit,
a slide base for guiding the first and second sliding blocks to move; first and second motors respectively installed at both ends of the slide base at intervals; and first and second ball screws respectively connected and fixed to the respective motor shafts of the first and second motors; including,
The first and second ball screws are installed to pass through the first and second sliding blocks, respectively, the first ball screw is installed to be screw-coupled to the first sliding block, and the second sliding block is installed to pass through without screw coupling, and the second ball screw The screw is installed to be screw-coupled to the second sliding block, and the first sliding block is installed to pass through without screw coupling,
A pair of hemispherical grooves are formed on the lower surface of the first and second sliding blocks, respectively, and a ball is inserted into the hemispherical groove, and the ball is supported so as not to be separated by the ball cover, and a part of the ball through the ball hole formed in the ball cover is installed to be exposed,
The measuring instrument installation stand,
vertical supports installed in the vertical direction; A GPS mounting part installed to be movable up and down on the side of the vertical support and mounted with a GPS measuring instrument; Horizontal mounting bracket installed in the horizontal direction on top of the vertical support; a rotating part installed on the upper part of the horizontal mounting table; a height part coupled to the upper part of the rotating part; a pair of air buffers coupled to both sides of the upper and lower parts; a left and right moving part that is horizontally coupled to the upper part of a pair of air buffers; and a laser meter coupled to the upper part of the left and right moving part; including,
The rotating part,
a rotating body coupled to the upper part of the horizontal mounting table and having a spherical rotating hole therein; and a rotation insertion unit formed in a spherical shape with an empty interior so as to be rotatably inserted into the rotation hole; including,
A rotary insertion groove is recessed in a ring shape at the lower end of the rotary hole of the rotary body, and a rotary protrusion protrudes outward in the form of a ring to be inserted into the rotary insertion groove at the lower end of the rotary insert, and a plurality of side surfaces of the rotary insert of the incision groove is formed in the front-rear direction,
The air buffer unit,
an air housing coupled to the upper part of the height part and having a filling space so that air can be filled therein; an air flow unit coupled to the upper portion of the air housing and having an air hole vertically formed in the center; A pair of air openings and openings coupled to the top of the air hole and having an elastic force; a ring-shaped air ring mounted inside the air flow unit and coupled to surround the air hole; and an upper housing coupled to an upper portion of the air flow unit; includes,
The air housing and the air flow part are made of an elastic rubber material, the air ring is made of a metal material, a plurality of vent holes are formed on the side surface of the upper housing, and the lower end of the air opening/closing part is in contact with the inner wall of the upper end of the air hole. The contact support end is formed to protrude downward to support the air opening and closing unit.
The air ring is vibrated by the vibration transmitted from the air housing, and the air flow section vibrates accordingly to open the air opening and closing section, and air flows through the vent hole, air hole and filling space of the upper housing,
The left and right moving part,
Left and right cases coupled to the upper portion of the air buffer and having movable holes formed on the upper surface in the longitudinal direction; a pair of sliding parts coupled to both inner sides of the left and right cases and having sliding holes formed along the longitudinal direction; a pair of left and right rods each having one end slidably inserted into the pair of sliding parts; a central metal part of a metal material coupled to the center of a pair of left and right rod parts; an upper and lower rod part extending to the upper part of the central metal part and exposed to the outside through a moving hole; a central magnet coupled to the center of the inner lower part of the left and right cases; A pair of left and right magnets spaced apart from each other on the basis of the central magnet and exhibiting magnetism; a pair of moving rails coupled to the upper surface of the left and right cases and coupled to both sides in the front and rear directions based on the moving holes along the longitudinal direction; and a rail moving unit coupled to the side of the upper and lower rods and accommodated in a pair of moving rails and capable of sliding along the longitudinal direction; includes,
The central magnet has a relatively larger size than a pair of left and right magnets and has relatively large magnetism, and the central metal part is usually located in the center by the magnetic force applied by the central magnet, and as the left and right cases are inclined to one side, The central metal part also moves to one side by the weight of the central metal part and the magnetic force of the left and right magnets, and when the left and right cases return to the horizontal again, the central metal part returns to the center by the magnetic force of the central magnet, which has relatively large magnetism,
The support mechanism is
a support panel that can be selectively fastened to the lower end of the vertical support; a pair of support legs rotatably installed on one side of the support panel; and a pair of support wheels coupled to the other side of the support panel; A waterway survey system capable of correcting the change of the waterline so as to reduce the measurement error of the ocean surveying line, characterized in that it comprises a.

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