KR102401258B1 - Geodetic surveying system for deliberate measuring level of ground - Google Patents

Abstract

The present invention relates to a geodetic survey system capable of precise leveling among geodetic survey systems and, more specifically, to a precise geodetic survey system which can easily collect information for creating a 3D digital map, allow precise geodetic survey by firmly fixing a camera and a GPS receiver on an upper part of a vehicle, precisely measure a change in level due to curvature of a ground surface by a slope detector installed and elastically supported on the vehicle, and easily and accurately collect and utilize the information on the change in level and slope due to the elevation of the ground surface by point for creating the 3D digital map.

Description

A geodetic surveying system capable of precise leveling

The present invention relates to a system capable of precise leveling among geodetic surveying systems. More specifically, it is possible to easily collect information for 3D numerical map production, and to make precise geodetic measurements by strongly fixing a camera and a GPS receiver to the top of a vehicle. Surveying is also possible, and the level change due to the curvature of the ground is precisely measured through the inclination sensor installed in the vehicle and elastically supported, and using this, information on the level change due to the elevation of the ground surface and the inclination degree are used to produce a 3D numerical map. It relates to a geodetic surveying system that can easily and accurately collect and utilize

In order to produce not only numerical maps but also GPS-based geographic information including various types of geographic information, geodetic and surveying work to check whether the photographed area is accurately photographed as well as topographical photographing of the target area is essential. This is because, when making a numerical map, when a drawing map is completed based on the recorded material and the GPS coordinates are synthesized on the drawing map, the corresponding terrain and GPS coordinates must exactly match.

Geodetic surveying of the terrain is performed in the field through a total station, which is a device capable of measuring level changes due to changes in the elevation of the terrain, etc. The geodetic survey was carried out in the aiming method.

However, such a conventional geodetic survey method required a lot of time due to the complicated process required to repeat the installation and dismantling of the total station and the limitation of one-time survey for the area to be measured. It was the cause that significantly impaired the efficiency of the work.

Meanwhile, with the development of imaging technology and the introduction of 3D stereoscopic image maps, interest in 3D numerical maps is emerging. Such a three-dimensional numerical map can display or show even the elevation of the road, so that the user can enjoy the feeling of the field only with the corresponding numerical map. There was a difficulty in measuring the level change due to each other.

And, since detailed measurement of elevation using the conventional total station is practically impossible, elevations were measured in units of a certain area, and this survey was a cause of undermining the reliability of the 3D numerical map.

In order to improve this, Korean Patent Registration No. 1121626 (published on February 22, 2012, title of invention: a system exclusively for geodetic surveying precision surveying of GPS-based geographic information for each reference point) has been disclosed. However, according to Korean Patent No. 1121626, the guide tube of the inclination sensor has to stop at a specific point, and since the brake to stop it is made by the pad, slip occurs on the pad contact surface when the guide tube is stopped and stops at the correct position. There is a disadvantage in that it causes a problem that cannot be performed, and thus acts as a factor hindering accurate measurement.

In addition, the registered patent has a structure in which the shock and vibration transmitted from the vehicle itself or from the outside of the vehicle are transmitted as it is to the inclination sensor installed in the vehicle. There was a problem.

In addition, since the vehicle for surveying shoots or scans the object to be surveyed while driving on the ground, when the camera, laser scanner, GPS receiver, etc. are not strongly fixedly coupled to the vehicle, various parts due to vibration transmitted from the ground or vehicle However, there was a risk of damage to the equipment and difficult to measure accurately.

The present invention has been devised to solve the problems of the prior art, and it adopts a structure for alleviating or offsetting the shock transmitted to the inclination sensor, and reinforcing the brake function of the inclination sensor guide tube information for producing precise numerical maps. The purpose of this is to provide a geodetic survey system that can easily collect and perform precise geodetic surveys for each point.

In addition, another object of the present invention is to provide a geodetic surveying system capable of stably fixing each part of a feature measuring device while driving while mounted on a vehicle, thereby preventing damage to the device and enabling accurate measurement.

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 present invention for solving the problems of the prior art described above, the GPS receiver 40 for confirming the GPS coordinates where the vehicle (V) is located through communication with the artificial satellite (10); A camera 50 for collecting live-action images by photographing the surroundings of the vehicle (V); a mileage check device 180 for checking the current moving distance of the vehicle (V); a signal transmitter 190 for transmitting a driving signal; A pair of supporters 131 seated inside the vehicle V, a guide tube 132 fixed between the supporters 131, and a guide tube 132 are movably built in, and a detection bar ( A moving ball 133 formed to protrude 133b), a brake 134 installed close to one side of the sensing bar 133b to stop the movement of the moving ball 133 according to a fixed signal of the input/output device 150; , a plurality of pressure sensors 133c installed so that the lower portion of the detection bar 133b is in contact, and arranged in a line on the upper surface to transmit a detection signal and ID to the control device 170 when the pressure is sensed, and the detection bar 133b ) inclination sensor 130 consisting of a roller (133d) elastically installed via a spring (133e) at the lower end; The graph is shown according to the moving distance of the vehicle V checked by the mileage check device 180, but the angle of the graph is changed by calculating the gradient changed when the detection signal and ID of the pressure sensor 133c are received, and the reference signal a control device 170 that checks the detection signal of the inclination sensor 130 upon reception to determine whether the inclination of the corresponding ground surface is 0 degrees, and outputs an abnormal signal through the input/output device when the inclination is not 0 degrees; an input/output device 150 for transmitting a fixed signal for controlling the brake 134, inputting an operation signal for operation of the information collector 100, and outputting the actual image or the illustrated graph and an abnormal signal; an information collector 100 configured with a storage device 140 to link and store the actual image and graph with the GPS coordinates; and a reference coordinate transmitter (30) installed on the ground surface having an inclination of 0 degrees and transmitting a reference signal in response to the received driving signal; ) further comprising an elastic support unit 200 for elastically supporting, the elastic support unit 200 includes a clamp unit 110 coupled while surrounding the supporter 131 of the inclination sensor 130; and a plurality of elastic support parts 120 that are detachably coupled to one side of the clamp part 110 to elastically support the clamp part 110 , and the clamp part 110 is a supporter of the inclination sensor 130 . A first clamp body 111 surrounding the 131 and provided with first flanges 111a at both ends; a second clamp body 112 surrounding the supporter 131 of the inclination sensor 130 and provided with second flanges 112a at both ends; A fastening part coupled to the first flange 111a and the second flange 112a facing each other to fasten the first clamp body 111 and the second clamp body 112 to the supporter 131 ( 113); and a plurality of pieces provided in the first clamp body 111 and the second clamp body 112 to attach the first clamp body 111 and the second clamp body 112 to the supporter 131 by magnetic force. A pair of first elastic support bodies having a clamp magnet member 114 and wherein the plurality of elastic support parts 120 are detachably coupled to the inner wall of the vehicle at one side and detachably coupled to the clamp part 110 at the other side. (121); a first spring 122 having both ends coupled to the pair of first elastic support bodies 121, respectively; and a pair of first magnet members 123 respectively provided on the pair of first elastic support bodies 121, wherein the camera 50 and the GPS receiver 40 are mounted on the upper part of the vehicle V It further includes a detachable and fixed portion for fixing in a detachable manner, wherein the detachable and fixed portion 600 includes a fixed case 610 coupled to the upper portion of the vehicle; a plurality of fixing protrusions 611 coupled to the upper surface of the fixing case; a first plate 620 seated on the inside of the plurality of fixing protrusions, respectively, to which the camera 50 is coupled to an upper surface thereof; a second plate 630 seated on the inside of the plurality of fixing protrusions, respectively, to which the GPS receiver 40 is coupled to an upper surface thereof; and a fixed pressing unit 640 disposed on the first plate and the second plate to press the upper surfaces of the first plate and the second plate; and, the pressing fixing part 640 includes: a first pressing rod 641 disposed in a transverse direction on the upper surfaces of the first plate and the second plate and curved toward the bottom from the center to the end; a second press member (642) disposed in the transverse direction on the upper surfaces of the first plate and the second plate and curved downward from the center to the end; a fixed connecting rod (643) disposed between the first press arm and the second press arm to connect the first press arm and the second press arm; a fixed rod 644 coupled to the center of the fixed connecting rod and extending downwardly; and a rod fastening part 645 coupled to the upper surface of the fixed case and to which the lower end of the fixed rod is inserted and fastened; It provides a geodetic surveying system capable of precise leveling, characterized in that it comprises a.

According to the geodetic surveying system capable of precise level measurement of the present invention, a structure that mitigates or offsets the impact transmitted to the inclination sensor is adopted, and when measuring the curvature of the ground surface through the inclination sensor installed in the surveying vehicle, the guide pipe As it stops precisely at the correct point, it eliminates the error of the measurement, and through this, it has the effect of easily and accurately collecting and using information on the level or elevation of the earth's surface, which are essential information for 3D numerical map production, and the slope for each point.

In addition, according to the present invention, it is possible to stably fix each part of the feature measuring device such as a camera, a laser scanner, and a GPS receiver when driving while mounted on a vehicle, thereby preventing damage to the device and enabling accurate measurement. .

Effects of the present invention are not limited to those mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

1 is an exemplary view showing the movement of a surveying vehicle to which a geodetic surveying system according to the present invention is applied.
Figure 2 is a block diagram of a geodetic survey system according to the present invention.
Figure 3 is a graph showing the curvature of the ground surface according to the height information collected by the vehicle for surveying according to the present invention.
Figure 4 is a perspective view showing the inclination sensor provided in the geodetic survey system according to the present invention.
5 is an exemplary view of an elastic support unit provided in the geodesic surveying system according to the present invention.
Figure 6 is an exploded view of the detachable fixed part provided in the geodetic surveying system according to the present invention.
7 and 8 are cross-sectional views showing the operation of the inclination sensor mounted on the vehicle for surveying only according to the present invention.
9 and 10 are cross-sectional views showing a state in which the brake of the inclination sensor provided in the geodetic surveying system according to the present invention is operated.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, the terms or words used in the present specification and claims should not be construed as being limited to conventional 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. Therefore, the configuration shown in the embodiments and drawings described in the present specification is only the most preferred embodiment of the present invention and does not represent all of the technical spirit of the present invention, so at the time of the present application, various It should be understood that there may be equivalents and variations.

1 is an exemplary view showing the movement of a surveying vehicle to which a geodetic surveying system according to the present invention is applied, FIG. 2 is a configuration diagram of a geodetic surveying system according to the present invention, and FIG. 3 is a surveying vehicle according to the present invention It is a graph showing the curvature of the ground surface according to the collected elevation information.

As shown in Figures 1 to 3, the present invention is installed in a vehicle (V) running on the site of the digital map production target, the information collector 100 to collect information for the production of the numerical map, and the slope is It may be configured to include a reference coordinate transmitter 30 that is installed on the ground surface of 0 degrees and sets the corresponding position as a reference point while checking whether the initial position of the inclination sensor 130 is accurately captured.

The reference coordinate transmitter 30 records the GPS coordinates of the installation location to perform the function of the reference point, and the record is provided to the operator, so that the coordinates are checked when collecting geographic information using the vehicle V, as well as the inclination sensor 130 ) is used as a standard to check whether there is an error.

The information collector 100 includes a GPS receiver 40 for confirming the current position of the vehicle V in motion, a camera 50 for photographing the scene to obtain an actual image, and an inclination for detecting the curvature of the ground surface. A sensor 130, a storage device 140 that links and stores the graph reflecting the actual image and the curved state of the ground surface with GPS coordinates, an altimeter 160 that measures the current altitude of the vehicle V, and the vehicle ( The mileage check device 180 that checks the mileage of the vehicle V while interlocking with the mileage device 20 of V), the curvature state (slope) of the ground surface detected by the inclination sensor 130, and the altimeter 160 ), calculates the curvature of the ground surface through the mileage of the vehicle V checked by the altitude and mileage check device 180, and applies this to the 2D topographic image to complete the 3D topographic image while the reference coordinates A control device 170 that receives a reference signal transmitted from the transmitter 30 and compares it with the current detection signal transmitted by the inclination sensor 130 to determine whether there is an error, and an operation signal for the operator to operate the information collector 100 An input/output device 150 for inputting and receiving and outputting an output signal of the information collector 100, and a signal transmitter 190 for transmitting a driving signal so that the reference coordinate transmitter 30 transmits the reference signal. can

The GPS receiver 40 is a known device that communicates with one or more GPS-only satellites 10, etc., and is a graph showing the actual image, which is information collected by checking the current GPS coordinates of the vehicle V, and the curved state of the ground surface It performs the function of linking it to .

One or more cameras 50 may be installed on the top of the vehicle V, and may be arranged to simultaneously photograph various directions on the ground while driving. The actual image taken in this way is composed of the information of the GIS-based numerical map, so that the numerical map can be utilized for various purposes.

In the present invention, the lens of the camera includes a modified inorganic filler synthesized by mixing a silane-based resin with an inorganic oxide sol in which an inorganic oxide is colloidally contained in methyl alcohol, a cellosolve solvent, and itaconic acid. A coating layer may be formed on the lens surface with a coating composition comprising a curing catalyst comprising a, an acid catalyst comprising a sulfonic acid, a surfactant, and water.

In the composition for coating the lens of the camera 50, the modified inorganic filler may be included in an amount of 30 to 80 parts by weight. In addition, the modified inorganic filler may be composed of 12 to 20 parts by weight of the silane-based resin in 80 to 88 parts by weight of the inorganic oxide sol.

When the coating layer is formed on the camera lens with the coating composition as described above, interference and UV yellowing can be removed from the lens, and excellent light transmittance is exhibited, thereby enabling more accurate image image acquisition.

Since the actual image taken by the camera 50 is recorded with the GPS coordinates received by the GPS receiver 40, it is linked and stored in the corresponding location of the numerical map, and through this, the user selects the corresponding point on the numerical map and at the same time You will be able to confirm by outputting the actual image.

The inclination sensor 130 is a device that detects the inclination during driving of the vehicle V and checks the inclination of the ground surface. The detailed configuration and contents of the inclination sensor 130 of the present invention will be described later in detail. do.

The altimeter 160 performs a function of measuring the altitude at which the vehicle V is currently located and comparing whether the inclination of the ground surface detected by the inclination sensor 130 matches the actual inclination. It may be possible to identify a ground structure such as a speed bump or an entry into a sidewalk from a roadway that allows the sensor 130 to recognize an inclination.

The mileage check device 180 performs a function of checking the distance traveled by the vehicle V while interworking with the mileage device 20 of the vehicle V, and interworking with the GPS receiver 40 of the vehicle V ) can perform a function of collecting information about the mileage of the vehicle.

The mileage device 20 is connected to the axle of the vehicle V and counts the number of rotations of the axle to estimate the moving distance of the vehicle V, and is used to measure the mileage of the vehicle V. accuracy is not very high. Therefore, in order to collect more accurate information on the mileage, as described above, the mileage check device 180 may collect information on the movement distance from the GPS receiver 40 .

The signal transmitter 190 performs a function of transmitting a driving signal so that the reference coordinate transmitter 30 can transmit a reference signal toward the adjacent vehicle (V). The signal transmitter 190 and the reference coordinate transmitter 30 apply RFID technology. The signal transmitter 190 and the control device 170 function as an RFID reader, and the reference coordinate transmitter 30 is an RFID tag. can perform the function of

In addition, in the present invention, passive RFID technology that uses only the power of the reader part for the operation of the reference coordinate transmitter 30 that is always installed on the ground surface can be applied, and thus, the driving signal including the power source is transmitted from the signal transmitter 190 When this occurs, the reference coordinate transmitter 30 transmits a reference signal indicating that the inclination of the corresponding ground surface is 0 degrees so that the control device 170 of the corresponding vehicle V can receive it.

For reference, it is preferable that the effective radius of transmission of the reference signal is limited so that the vehicle V can accurately receive and recognize the reference signal at the position. That is, if the vehicle (V) receives the reference signal and corrects it on the ground surface with an inclination other than 0 degrees, an error will continue to occur in the slope measurement on other ground surfaces, so the vehicle (V) and the reference coordinate transmitter 30 Ideally, effective communication should take place at very close distances.

The control device 170 combines the information confirmed by the inclination sensor 130, the altimeter 160, and the mileage check device 180, respectively, to calculate the curvature state (slope) of the corresponding ground surface and draw it, for example, For example, a function of expressing the ground surface of FIG. 1 in the form of a graph as shown in FIG. 3 may be performed.

More specifically, the inclination sensor 130 measures the inclination angle (hereinafter, 'slope') of the vehicle V in real time and transmits it to the control device 170 as a detection signal, and the mileage check device 180 is the vehicle The current mileage of (V) is checked in real time and transmitted to the control device 170 . Accordingly, the control device 170 shows the mileage transmitted by the mileage check device 180 in real time, but shows the slope transmitted by the inclination sensor 130 to complete the graph shown in FIG. 3 .

At this time, if there is no change in the altitude information transmitted from the altimeter 160 even though there is a change in the slope transmitted by the slope sensor 130, it is a temporary slope change due to an artificial structure formed on the ground surface. It will be possible to continue the aforementioned city without changing the

As a result, the control device 170 can precisely show the curvature of the earth's surface with respect to the height (H) compared to the distance (D), and accurately reflect this on the numerical map to provide the user with highly useful information.

On the other hand, when the control device 170 receives the reference signal from the reference coordinate transmitter 30 , it checks the inclination of the detection signal received from the inclination sensor 130 and checks whether it is 0 degrees, otherwise the inclination detector A function of outputting an abnormal signal through the input/output device 150 may be performed to release the brake 134 of the 130 .

Of course, when the operator confirms the abnormal signal output through the input/output device 150, the brake 134 is released to reset the initialization of the inclination sensor 130 at the corresponding position where the inclination is 0 degrees.

4 is a perspective view showing an inclination sensor provided in the geodetic survey system according to the present invention.

The inclination sensor 130 of the present invention is installed in the vehicle V and performs a function of detecting the inclination of the ground surface through which the vehicle V passes, and a pair of supporters 131 seated inside the vehicle V and , a guide tube 132 fixed between the supporters 131 , a moving ball 133 movably inserted into the guide tube 132 , and a brake for selectively stopping the movement of the moving ball 133 . 134 may be included.

The supporter 131 is not limited to the illustrated shape as long as it has a structure capable of fixing the guide tube 132 in the shape of a circular bar. will be able

The guide tube 132 has a circular bar shape as described above and is fixed to the supporter 131 , and a guide hole 133a is formed in the lower portion in the longitudinal direction.

A detection bar 133b is formed to protrude from the lower portion of the moving ball 133, and the detection bar 133b is moved while being inserted into the guide hole 133a, and the lower end of the detection bar 133b is pressurized. The roll 133d is elastically installed via a spring 133e.

A plurality of pressure sensors 133c disposed along the bottom surface to be in contact with the pressure roll 133d are installed, detect the load of the pressure roll 133d, and control the detection signal together with its ID (170).

The pressure sensor 133c checks the current position of the pressure roll 133d so that the control device 170 can track the current posture of the housing 133a, and furthermore, the posture of the moving ball 133 and the vehicle ( By tracking the posture of V), it is possible to track the inclination of the ground surface where the vehicle V is located. To this end, the pressure sensors 133c may be arranged at regular intervals along the bottom surface, and it is preferable that a plurality of pressure sensors 133c be arranged closely for more detailed measurement.

For reference, if the pressure sensors 133c are arranged in a line at regular intervals so as to correspond to the distance the vehicle is rotated by 1 degree, the control device 170 sequentially receiving the detection signals from the pressure sensors 133c is a moving ball 133. It will be able to recognize the amount of movement of , and through this, it will be possible to track the exact inclination of the vehicle V.

On the other hand, the present invention further includes an elastic support unit 200 for elastically supporting the inclination sensor 130, which will be described in detail later.

9 and 10 are cross-sectional views showing a state in which the brake of the inclination sensor provided in the geodetic surveying system according to the present invention is operated.

The brake 134 provided in the inclination sensor 130 of the present invention is fixed to the supporter 131 so as to be in close contact with the detection bar 133b and is operated by the input/output device 150 .

More specifically, the supporter 131 has a change in its inclination according to the current posture of the vehicle V, while the moving ball 133 moves inside the guide tube 132 . That is, the moving ball 133 is moved by the inclination of the guide tube 132 installed on the supporter 131 .

However, when the driving of the vehicle V starts for the geodetic survey work, the moving ball 133 must also be moved according to the change in the inclination of the guide tube 132 .

For this purpose, the brake 134 is released during the measurement preparation so that the moving ball 133 can rotate smoothly, and when the measurement preparation is completed and a fixed signal for starting is input from the input/output device 150, the brake 134 is the detection bar (133b) is fixed so that the moving ball 133 is constrained inside the guide tube (132).

In the present invention, the moving ball 133 includes 6 to 34 parts by weight of any one or more alloys or mixtures selected from silver, copper, nickel, and aluminum, which are metal nanoparticles containing carbon; 0.2 to 7 parts by weight of a surfactant selected from the group consisting of polyethylene glycol octylphenyl ether, polyethylene glycol alkylphenyl ether, and polyoxyethylene lanolin alcohol ether; 0.2 to 6 parts by weight of a dispersing agent selected from the group consisting of polyvinylpyrrolidone, sodium dodecyl sulfate, and sodium citrate; And the remainder may form a coating layer using a coating composition consisting of a lubricating oil.

When a coating layer is formed on the moving ball 133 using such a coating composition, the moving ball 133 moves smoothly and flexibly within the guide tube 132 by improving the abrasion resistance of the sliding portion surface and strengthening the frictional resistance. can

In the present invention, various means may be applied to the brake 134 as long as it has a structure that can block the movement of the detection bar 133b, but in the embodiment according to the present invention, a solenoid ( It is installed on the rod 134c of the 134a) and is formed of a pad 134b of a material having a large coefficient of friction installed at the end of the rod 134c.

Accordingly, when power is supplied to the solenoid 134a, the rod 134c is withdrawn, and the pad 134b installed at the tip of the rod 134c is in close contact with the detection bar 133b, so that the detection bar 133b is fixed. do.

5 is an exemplary view of an elastic support unit provided in the geodesic surveying system according to the present invention.

The present invention further includes an elastic support unit 200 disposed inside the vehicle to elastically support the inclination sensor 130 , wherein the elastic support unit 200 includes a supporter 131 of the inclination sensor 130 . ) may be configured to include a plurality of elastic support parts 120 for elastically supporting the clamp part 110 by being detachably coupled to the clamp part 110 and one side of the clamp part 110 and one side being coupled while surrounding the clamp part 110 .

The clamp unit 110 includes a first clamp body 111 surrounding the supporter 131 of the inclination sensor 130 and having first flanges 111a at both ends; a second clamp body 112 surrounding the supporter 131 of the inclination sensor 130 and provided with second flanges 112a at both ends; A fastening part coupled to the first flange 111a and the second flange 112a facing each other to fasten the first clamp body 111 and the second clamp body 112 to the supporter 131 ( 113); and a plurality of pieces provided in the first clamp body 111 and the second clamp body 112 to attach the first clamp body 111 and the second clamp body 112 to the supporter 131 by magnetic force. A clamp magnet member 114; may be provided.

The first clamp body 111 and the second clamp body 112 of the clamp unit 110 surround the supporter 131 of the inclination sensor 130. In FIG. 4, the supporter 131 has a rectangular parallelepiped shape. However, a cylindrical or polygonal supporter may be applied according to the needs of the present invention, so that the first clamp body 111 and the second clamp body 112 of the present invention can surround it regardless of the shape of the supporter. A cross section of the center may be formed in a circular or oval shape.

In the present invention, the first clamp body 111 may be provided with a plurality of first protrusions 111b to prevent the first clamp body 111 from sliding or twisting from the supporter 131 . Also, a plurality of second protrusions 112b may be provided on the second clamp body 112 , and the plurality of second protrusions 112b may function as the plurality of first protrusions 111b.

Since the first clamp body 111 and the second clamp body 112 are supported by a plurality of elastic support parts 120 and can be fixed in position, in case of an emergency, even without the fastening part 113 made of a bolt and a nut. It may be coupled to the supporter 131 .

On the other hand, the first clamp body 111 and the second clamp body 112 are Si: 0.01 to 0.22 wt%, Fe: 0.01 to 0.27 wt%, Cu: 0.01 to 0.06 wt%, Mg: 1.7 to 1.9 wt% %, Zn:6.3 to 6.8% by weight, Ti:0.01 to 0.07% by weight, Zr:0.3 to 0.5% by weight, and the remainder may be formed of a rigid aluminum material composed of Al, and when formed of such a material, tensile strength 451 MPa, since it has a yield strength of 414 Mpa or more, rigidity and stability can be guaranteed.

In addition, the first clamp body 111 and the second clamp body 112 have a coating layer on their surfaces, wherein the coating layer has a zirconium content of 26.7 to 50.3 parts by weight and niobium with respect to 100 parts by weight of a rigid aluminum material. It may be formed by spraying an alloy powder containing 38.3 to 69.7 parts by weight of content, and 1.3 to 2.3 parts by weight of scandium or yttrium by weight.

As such, when a coating layer is provided on the surfaces of the first clamp body 111 and the second clamp body 112, the Vickers hardness is 750 to 1,100 Hv (0.2), and the friction coefficient is 0.0008 to 0.06 μ under a load of 100N. Therefore, durability, corrosion resistance, friction resistance and abrasion resistance can be provided.

The plurality of elastic support parts 120, one side is detachably coupled to the inner wall of the vehicle, and the other side is a pair of first flanges 111a and second flanges 112a of the clamping part 110 that are detachably coupled to each other. 1 elastic support body 121; a first spring 122 having both ends coupled to the pair of first elastic support bodies 121, respectively; and a pair of first magnet members 123 respectively provided on the pair of first elastic support bodies 121 .

In the present invention, the plurality of clamp magnet members 114 and the first magnet member 123 are prepared by mixing 70 to 89% by weight of alnico powder and 11 to 30% by weight of samarium-cobalt powder to prepare a magnetic powder, It is manufactured by dissolving 12 to 20% by weight of a binder, which is a mixture of epoxy resin, curing agent, and curing accelerator, in 80 to 88% by weight of magnetic powder in acetone, mixing them, and drying, pulverizing, compression molding and curing, and the thickness is 4,000 to 5,000㎛. A heterojunction type composite magnet manufactured by a molten salt method and having a strontium-ferrite magnet layer with a thickness of 600 to 700 μm bonded to the alnico-based composite magnet can be applied.

When the above heterojunction type composite magnet is applied, the magnetic properties can be maximized by increasing the coercive force while maintaining the proper residual magnetic flux density by adding the rare earth magnetic material samarium-cobalt powder, and furthermore, by bonding the strontium ferrite composite magnet layer A higher coercive force can be obtained.

In the present embodiment, the plurality of elastic support units 120 may mitigate or cancel the shock and vibration transmitted to the inclination sensor 130 from the vehicle itself or from the outside of the vehicle through the plurality of springs 22 .

Since the plurality of elastic support units 120 are detachably coupled to the clamp unit 110 and the inner wall of the vehicle by magnetic force, there is an advantage that can be conveniently detached, and the clamp unit 110 and the inner wall of the vehicle are a metal member attached to a magnet. can be formed with

On the other hand, in the elastic support unit 200 of the present invention, a plurality of elastic support units 200 are fastened to the guide tube 132, not the supporter 131, according to the needs of the invention, and vibration transmitted from the vehicle itself or the outside; It may also perform a function of mitigating shock.

6 is an exploded view of the detachable and fixed part provided in the geodetic surveying system according to the present invention.

The detachable fixing unit 600 of the present invention performs a function of detachably fixing the camera 50 and the GPS receiving unit 40 to the upper part of the vehicle. The detachable fixing unit 600 includes a fixing case 610, a plurality of fixing protrusions 611, a first plate 620, a second plate 630, an altitude measurement unit 120, a GPS receiver 240, and a fixing unit. It may be configured to include a pressing unit 640 .

The fixing case 610 may be coupled to the upper portion of the vehicle, and may have a hexahedral shape as a whole. The fixed case 610 may be coupled to the upper surface of the vehicle using an adhesive, and, according to the needs of the present invention, a hole is provided in each corner region of the cojeong case 610, and then passes through the upper surface of the vehicle. It may be fixed by bolts and nuts.

The plurality of fixing protrusions 611 are coupled to the upper surface of the fixing case 610 . In the illustrated embodiment, the plurality of fixing protrusions 611 is composed of eight, but is not limited thereto, and may be adjusted according to the number of plates.

The first plate 620 and the second plate 630 are respectively seated inside the plurality of fixing protrusions 611 . Since the first plate 620 and the second plate 630 are seated on the fixing protrusion 611 , the movement of the first plate 620 and the second plate 630 is prevented.

A camera 50 is coupled to an upper surface of the first plate 620 , and a GPS receiver 40 is coupled to an upper surface of the second plate 630 . In the present invention, as such parts such as the camera 50 and the GPS receiver 40 are coupled to the first plate 620 and the second plate 630 and can be freely attached and detached, various parts can be utilized in the shape and configuration desired by the user. There is an advantage that

That is, according to the needs of the invention, the upper surfaces of the first plate 620 and the second plate 630 have a reference coordinate transmitter 30 and an altimeter 160 in addition to the camera 50 and the GPS receiver 40 according to the needs of the invention. ), a signal transmitter 180 or a laser scanner may be disposed.

Furthermore, in the illustrated embodiment, the first plate 620 and the second plate 630 are detachably coupled to the upper portion of the fixing case 610, but depending on the situation, various parts such as a communication module and a display may be installed differently. It may also be mounted on a plate.

The fixed pressing unit 640 is disposed on the first plate 620 and the second plate 630, and presses the upper surface of the first plate 620 and the second plate 630 to the first plate ( 620) and the second plate 630 to be stably fixed. Specifically, the fixed pressure unit 640 may include a first pressure bar 641 , a second pressure bar 642 , a fixed connecting bar 643 , a fixed rod 644 , and a rod fastening unit 645 . have.

The first press arm 641 is disposed in the transverse direction on the upper surfaces of the first plate 620 and the second plate 630 and is curved downward from the center toward the end. The first pressure band 641 is disposed on the front side with respect to the GPS unit 110 and the altitude measurement unit 120 . First pressing curved portions 641a that are curved upwardly are formed at both ends of the first pressing arm 641 .

The second press arm 642 is disposed in the transverse direction on the upper surfaces of the first plate 620 and the second plate 630 and is curved downward from the center toward the end. The second press arm 642 is disposed on the rear side with respect to the camera 50 and the GPS receiver 40 . Second pressing curved portions 642a curved upwardly are formed at both ends of the second pressing arm 642 .

In other words, the first press arm 641 and the second press arm 642 are dividedly arranged on both front and rear sides with respect to the camera 50 and the GPS receiver 40, and the first press curve part 641a and the second press arm part 641a It is possible to strongly press the upper surfaces of the first plate 620 and the second plate 630 by providing the pressing curved portion 642a.

The first and second pressure curves 641a and 642a located on the left side of the first and second pressure bands 641 and 642 support the upper surface of the first plate 620, and The first and second pressure curves 641a and 642a located on the right side of the first and second pressure bands 641 and 642 support the upper surface of the second plate 630 .

The first press arm 641 and the second press arm 642 have elastic restoring force, and the first plate 620 and the second press arm 642 by the elastic restoring force of the first press arm 641 and the second press arm 642 have an elastic restoring force. 2 The upper surface of the plate 630 may be pressed.

Specifically, the first and second pressure bands 641 and 642 include Si: 0.14 wt% or less, Fe: 0.14 wt% or less, Cu: 0.04 wt% or less, Mg: 1.2-1.5 wt%, Zn It may be formed of an aluminum alloy material composed of: 5.8-6.0 wt%, Ti: 0.04 wt% or less, Zr: 0.2-0.3 wt%, and the remainder Al.

When the above aluminum alloy material is applied, it is possible to reduce the weight compared to the existing aluminum alloy, and the impact resistance is improved. 407Mpa) to secure high strength, and durability can also be improved.

The Si and Fe are representative impurity elements managed as impurities in the 7000 series aluminum alloy, and when contained in an amount of 0.14 wt % or more, an intermetallic compound is formed to reduce the high temperature formability, so it is preferably added in an amount of 0.14 wt % or less.

Although Cu is a major additive element that improves strength and bendability and increases strength through age hardening during baking, it generates impurities such as Si and Fe to reduce toughness, so it is preferably added in an amount of 0.04% by weight or less.

Mg is an element added for solid solution hardening, and Zn is an element added to improve strength without loss of corrosion resistance. The Mg:Zn ratio must satisfy the range of about 1:3 to improve strength. .

At this time, when Mg is added in an amount of 1.6 wt% or less, the age hardening effect is rapidly reduced, and when Mg is added in an amount of 1.8 wt% or more, a coarse precipitated phase is generated and physical properties are deteriorated, as well as a sudden decrease in extrudability due to an increase in pressure during extrusion. do. In addition, in the case of Zn, when the content exceeds 5.4% by weight, it is preferable to limit the content to the above range because the extrusion productivity is lowered as well as the stress corrosion cracking property is deteriorated.

The Ti is an element added to refine the crystal grains, and when it is added in an amount of 0.04 wt% or more, the extrudability is lowered and the toughness is reduced by generating a coarse compound, so it is preferable to limit the Ti to the above range.

The Zr is an element added for grain refinement and recrystallization layer suppression, and forms a precipitated phase together with Al to match the matrix structure to promote subcrystal formation, thereby refining crystal grains. However, when Zr is added in an amount of less than 0.2% by weight, there is little effect of crystal grain refinement and recrystallization layer suppression, and when it exceeds 0.3% by weight, an adverse effect is induced, and unnecessary dispersed phase is precipitated in the grain boundary, resulting in deterioration of physical properties. It is preferable to limit it to

The aluminum alloy having the above composition may be applied through a known casting process, homogenization heat treatment, extrusion, stretch bending, and aging heat treatment.

In addition, the first and second pressure bands 641 and 642 have a coating layer on the surface thereof, wherein the coating layer has a zirconium content of 26.7 to 50.3 parts by weight and niobium based on 100 parts by weight of an aluminum alloy material. It may be formed by spraying an alloy powder containing 38.3 to 69.7 parts by weight of content, and 1.3 to 2.3 parts by weight of scandium or yttrium by weight.

In this way, when a coating layer is provided on the surfaces of the first and second pressure bands 641 and 642, the Vickers hardness is 750 to 1,100 Hv (0.2), and the friction coefficient is 0.0008 to 0.06 μ under a load of 100N. Therefore, durability, corrosion resistance, friction resistance and abrasion resistance can be provided.

The fixed connecting rod 643 is disposed between the first press arm 641 and the second press arm 642 and serves to connect the first press arm 641 and the second press arm 642 to each other. do.

The fixing rod 644 is coupled to the center of the fixing connecting rod 643 and extends downward. The rod fastening part 645 is coupled to the upper surface of the fixing case 610 and the lower end of the fixing rod 644 is inserted and fastened.

A fixing screw 644a is formed at the lower end of the fixing rod 644, and according to the degree to which the fixing screw 644a is fastened to the rod fastening part 645, a first pressure bar from the upper surface of the fixing case 610 ( 641) and the height of the second press arm 642 may be varied. That is, the user considers various factors such as the height of the first plate 620 and the second plate 630 , the weight of the camera 50 and the GPS receiver 40 , the required fixing force, the number of plates, and the like. ) from the upper surface of the first press arm 641 and the second press arm 642 can be varied in height.

7 and 8 are cross-sectional views showing the operation of the inclination sensor mounted on the vehicle for surveying only according to the present invention.

As shown in FIG. 7, the on-site survey is started in a state where the initial position of the roller 133d is taken, and when the vehicle V passes the road inclined to 'θ' as shown in FIG. 8, the moving ball 133 moves and the pressure sensor 133c detects the pressure according to the movement of the pressure roll 133d, and the detected signal is transmitted to the control device 170 in real time.

Meanwhile, the inclination of the ground surface of the position where the vehicle V first starts may not be 0 degrees horizontally. In this case, the operator first measures the initial inclination of the starting position and inputs it to the control device 170, and the control device 170 corrects the detection signal transmitted from the pressure sensor 133c based on the initial inclination and processes it. .

As described above, since the moving ball 133 is moved while the vehicle V is inclined along the inclination of the ground surface, the pressure roll 133d sequentially presses the pressure sensor 133c, and the pressure sensor 133c presses the pressure roll ( 133d) detects the pressure and transmits the corresponding detection signal together with its ID to the control device 170 so that the control device 170 can accurately calculate and track whether or not the vehicle V is tilted and its inclination. .

Of course, as described above, the control device 170 receives the mileage of the vehicle V checked by the mileage check device 180 and shows a graph as shown in FIG. 3 , and through this, the vehicle V The curved state of the ground surface that has been driven can be shown.

As described above, the present invention adopts a structure for alleviating or canceling the shock transmitted to the inclination sensor, and when measuring the curvature of the ground surface through the inclination sensor installed in the vehicle, the guide tube stops precisely at the correct point, so the measurement error is reduced. Through this, it is possible to easily and accurately collect and utilize the level or elevation information and inclination of the ground surface, which are essential information for 3D numerical map production, for each point and use it while driving while mounted in a vehicle, such as a camera, laser scanner, GPS receiver, etc. Each part of the feature measuring device can be stably fixed, preventing damage to the device and realizing more accurate measurement.

The present invention has been described above in relation to specific embodiments of the present invention, but this is merely an example, and the present invention is not limited thereto. Those of ordinary skill in the art to which the present invention pertains can change or modify the described embodiments without departing from the scope of the present invention, within the technical spirit of the present invention and equivalent scope of the claims to be described below Various modifications and variations are possible.

10: satellite 20: driving device
100: information collector 110: GPS receiver
120: camera 130: inclination detector
140: storage device 150: input/output device
160: altimeter 170: control device
180: mileage check device 110: clamp unit
111: first clamp body 111a: first flange
111b: first projection 112: second clamp body
112a: second flange 112b: first projection
113: fastening part 114: clamp magnet member
120: elastic support unit 200: elastic support unit
600: detachable and fixed part
610: fixed case 611: fixed protrusion
620: first plate 630: second plate
640: fixed press unit 641: first press stand
641a: first pressing curved portion 642: second pressing belt
642a: second pressing curved part 643: fixed connecting rod
644: fixed rod 644a: fixed screw
645: rod fastening part

Claims (1)

GPS receiver 40 for confirming the GPS coordinates where the vehicle V is located through communication with the satellite 10; A camera 50 for collecting live-action images by photographing the surroundings of the vehicle (V); a mileage check device 180 for checking the current moving distance of the vehicle (V); a signal transmitter 190 for transmitting a driving signal;
A pair of supporters 131 seated inside the vehicle V, a guide tube 132 fixed between the supporters 131, and a guide tube 132 movably embedded in the guide tube 132, and a detection bar ( A moving ball 133 formed to protrude 133b), a brake 134 installed close to one side of the sensing bar 133b to stop the movement of the moving ball 133 according to a fixed signal of the input/output device 150; , a plurality of pressure sensors 133c installed so that the lower portion of the detection bar 133b is in contact, and arranged in a line on the upper surface to transmit a detection signal and ID to the control device 170 when the pressure is sensed, and the detection bar 133b ) inclination sensor 130 consisting of a roller (133d) elastically installed via a spring (133e) at the lower end;
The graph is shown according to the moving distance of the vehicle V confirmed by the mileage check device 180, but the angle of the graph is changed by calculating the gradient changed when the detection signal of the pressure sensor 133c and the ID are received, and the reference signal a control device 170 that checks the detection signal of the inclination sensor 130 upon reception to determine whether the inclination of the corresponding ground surface is 0 degrees, and outputs an abnormal signal through the input/output device when the inclination is not 0 degrees;
an input/output device 150 for transmitting a fixed signal for controlling the brake 134, inputting an operation signal for operation of the information collector 100, and outputting the actual image or the illustrated graph and an abnormal signal; an information collector 100 configured with a storage device 140 to link and store the actual image and graph with the GPS coordinates; and a reference coordinate transmitter 30 installed on the ground surface having an inclination of 0 degrees, and transmitting a reference signal in response to the received driving signal;
It further includes an elastic support unit 200 disposed inside the vehicle to elastically support the inclination sensor 130 , wherein the elastic support unit 200 surrounds the supporter 131 of the inclination sensor 130 . The clamp unit 110 is coupled; and a plurality of elastic support parts 120, one side of which is detachably coupled to the clamp part 110 to elastically support the clamp part 110;
The clamp unit 110,
a first clamp body 111 surrounding the supporter 131 of the inclination sensor 130 and provided with first flanges 111a at both ends; a second clamp body 112 surrounding the supporter 131 of the inclination sensor 130 and provided with second flanges 112a at both ends; A fastening part coupled to the first flange 111a and the second flange 112a facing each other to fasten the first clamp body 111 and the second clamp body 112 to the supporter 131 ( 113); and a plurality of pieces provided in the first clamp body 111 and the second clamp body 112 to attach the first clamp body 111 and the second clamp body 112 to the supporter 131 by magnetic force. A clamp magnet member 114 is provided,
The plurality of elastic support parts 120,
a pair of first elastic support bodies 121 detachably coupled to the inner wall of the vehicle at one side and detachably coupled to the clamp unit 110 at the other side; a first spring 122 having both ends coupled to the pair of first elastic support bodies 121, respectively; and a pair of first magnet members 123 respectively provided on the pair of first elastic support bodies 121,
A detachable fixing unit for detachably fixing the camera 50 and the GPS receiving unit 40 to the upper part of the vehicle V is further provided,
The detachable fixing part 600 is,
Fixed case 610 coupled to the upper portion of the vehicle; a plurality of fixing protrusions 611 coupled to the upper surface of the fixing case; a first plate 620 seated on the inside of the plurality of fixing protrusions, respectively, to which the camera 50 is coupled to an upper surface thereof; a second plate 630 seated on the inside of the plurality of fixing protrusions, respectively, to which the GPS receiver 40 is coupled to an upper surface thereof; and a fixed pressing unit 640 disposed on the first plate and the second plate to press the upper surfaces of the first plate and the second plate; to provide
The fixed pressing unit 640,
a first pressure bar 641 disposed in the transverse direction on the upper surfaces of the first plate and the second plate and curved downwardly from the center to the end; a second press member (642) disposed in the transverse direction on the upper surfaces of the first plate and the second plate and curved downward from the center to the end; a fixed connecting rod (643) disposed between the first press arm and the second press arm to connect the first press arm and the second press arm; a fixed rod 644 coupled to the center of the fixed connecting rod and extending downwardly; and a rod fastening part 645 coupled to the upper surface of the fixed case and to which the lower end of the fixed rod is inserted and fastened; A geodetic surveying system capable of precise leveling, characterized in that it comprises a.

Images