KR102382232B1 - Precise spatial image drawing system for object of photographed image using horizontal surveying instrumnet - Google Patents

Abstract

The present invention relates to a spatial image drawing system for precisely drawing geographic features by maintaining the horizontal level of surveying instrument, and more specifically, to a spatial image drawing system which is installed at two or more calibration reference points arbitrarily selected from among geographic features of an area where aerial photography is performed, to measure GPS coordinates of each calibration reference point, to measure the distance to a surrounding geographic feature, and to precisely maintain the horizontal level of surveying instrument that synthesizes and creates a drawing image based on the measurement, to perform drawing work.

Description

A spatial imaging system that accurately draws features by maintaining the level of the surveyor

The present invention relates to a spatial imaging system that precisely draws features by maintaining the level of a surveying instrument, and more specifically, is installed at two or more correction reference points arbitrarily selected among the features in the area where aerial photography is performed. It relates to a spatial imaging system that measures the GPS coordinates of a calibration reference point, measures the distance to surrounding features, and precisely maintains the horizontal level of a surveyor that synthesizes and creates a drawing image based on this.

In general, the production of numerical maps includes: i) a method on the ground using a surveying device, ii) a method by combining images taken using an aircraft or satellite, and data measured on the ground, iii) and modifying the basic topographic map. It can be classified according to the manufacturing method.

Among the above methods, looking at the method of producing a numerical map using video images taken with an aircraft or satellite, first, a video image is obtained through aerial photography, and a drawing image is produced by synthesizing the obtained video image, It acquires ground reference points to be connected to a ground object that can be clearly read from the drawing image through planar reference point surveying and boulder burial surveying, and finally produces and outputs numerical drawing data through photo reference point surveying and drawing original map output.

After that, in order to check the accuracy of the numerical drawing data, a field survey is conducted with the printed drawing data to determine the width and location of roads and facilities, correct errors that occurred during the drawing process through the in-place editing stage, and make drawings And through the editing process, final correction and editing are performed according to the map schematic to complete the production of the numerical map.

As such, in order to produce a numerical map, it is essential to make a drawing of the drawing image that is the background. Since the video image obtained through aerial photography is taken from an aircraft far from the ground, optical deformation may occur at a distant point. can't help but

As a result, in the process of drawing the obtained aerial photographed image, an error occurs when the aerial photographed image is directly aligned with the GPS coordinates of a certain grid shape. Accordingly, there is a problem in that the reliability of the numerical map is lowered because the appearance and size of artificial structures or various topographical features appearing by drawing an aerial photographed image are slightly different from the actual ones.

Therefore, there is a need for a spatial imaging system capable of solving the above problems and generating a precise drawing image.

The present invention has been devised to solve the problems of the prior art, and is installed at two or more correction reference points arbitrarily selected from among the geographical features in the area where aerial photography is performed, to measure the GPS coordinates of each correction reference point, and to measure the surrounding geographical features. The purpose of this is to provide a spatial imaging system that can perform precise drawing of a geographical feature by precisely maintaining the horizontal level of a surveyor that measures the distance to and uses this to synthesize and generate a drawing image.

In addition, another object of the present invention is to provide a spatial imaging system capable of finely adjusting the rising and falling of the camera and laser rangefinder, and capable of precise measurement by attenuating the shock and vibration transmitted from the outside of the measuring instrument.

According to the present invention for solving the problems of the prior art, a surveyor; a survey data storage device for wirelessly receiving the GPS coordinate data and distance data transmitted by the surveying device and storing the received GPS coordinate data and distance data in an allocated area; An aerial photographed image DB for storing image data secured by aerial photographing in an allocated area; a drawing processor for synthesizing the GPS coordinate data and distance data stored in the survey data storage device to the image data stored in the aerial photographed image DB to generate a drawing image and to implement it in a computer; The drawing image generated by the drawing processor is corrected, but the distance and scale ratio of the location of the calibration reference points displayed on the drawing image and the location of the corresponding feature are the same based on the GPS coordinate data and distance data synthesized in the drawing image a drawing image corrector that partially enlarges or reduces the drawing image to create a final drawing image and implements it in a computer; and a drawing image DB for storing the final drawing image generated by the drawing image corrector in an allocated area; In a spatial imaging system comprising: a support plate formed of a rectangular flat member; At least two or more horizontal maintaining parts doedoe rolling in contact with the ground and maintaining the horizontality of the support plate at one side and the other side supporting the bottom of the support plate; a GPS receiver mounted on the upper surface of the support plate and measuring GPS coordinates; a support pipe provided through the central portion of the support plate; a first lifting shaft mounted to the support pipe to be movable in the vertical direction; a control unit coupled to an upper end of the first lifting shaft and including a manipulation unit; a second lifting shaft mounted on the upper end of the control unit to enable horizontal rotation and vertical movement; a mounting plate provided on the upper end of the second lifting shaft and formed of a circular flat plate member; a laser range finder mounted on the upper surface of the mounting plate; an observation camera mounted on the upper part of the laser range finder to face the same direction as the direction to which the laser range finder faces; and a target installed in front of a feature to receive the laser beam irradiated from the laser range finder; configured, including, wherein the horizontal maintaining unit is a coupling block provided on the bottom surface of the support plate, and one side is rotatable to the coupling block a first base bar coupled to the first base bar; a first mounting bar having one side portion disposed inside the first base bar to move into the first base bar; a first horizontal roller provided on the first mounting bar and in rolling contact with the ground; a first stopper formed on one side of the first mounting bar; a first spring member having one side coupled to the inside of the first base bar and the other side coupled to the first mounting bar to guide the length of the first mounting bar to be adjusted; a second base bar having one side rotatably coupled to the coupling block; a second mounting bar with one side portion disposed inside the second base bar to move into the second base bar; a second horizontal roller provided on the second mounting bar and in rolling contact with the ground; a second spring member having one side coupled to the inside of the second base bar and the other side coupled to the second mounting bar to guide the length of the second mounting bar to be adjusted; and a body connection spring connecting the first base bar and the second base bar to maintain a distance between the first base bar and the second base bar. and a second stopper formed on one side of the second mounting bar. It provides a spatial imaging system for accurately drawing a feature by maintaining the level of the surveyor including.

In the present invention, the target includes: a target pillar supported in a state embedded in the ground; a target plate on a square plate coupled to the upper end of the target column; a target umbrella unit for preventing foreign substances, including water, from touching the target plate by being ejected and fixed to the upper part of the target plate in case of rain while being retracted into the target plate; a target hole formed in the center of the target plate; a target photodiode mounted on the rear surface of the target hole; a target communication unit installed on one side of the target plate to transmit and receive wireless signals; a target lamp mounted on the front surface of the target plate; And it is mounted on the target plate, controls the target photodiode, the target communication unit, and the target lamp, and when the laser beam is received through the target photodiode, the time of the light reception time is stored and the time information is transmitted to the laser rangefinder. a target control board for synchronizing time by receiving a synchronization signal from the laser rangefinder at the same time; It is preferably configured to include.

In the present invention, the fine lifting and lowering adjustment part in close contact with the upper end of the inner surface of the second lifting shaft is fastened to the second lifting rod, and the fine lifting and lowering adjustment part is inserted into the second lifting rod and fastened rounding fasteners and bearings. It has two supports fastened by using and a wheel having a plurality of branches branching from the rotation shaft of the end of the support, and the wheel is formed on the inner surface of the second lifting shaft according to the rise or fall of the second lifting rod. It is preferable that one of the branches of the wheel is seated in the insertion groove while rotating along the projection.

The present invention is a buffer support in close contact with the lower end of the inner surface of the first lifting shaft is coupled to the center bar, the buffer support is coupled to the lower portion of the center bar, the buffer fastening portion having a disk shape; a buffer rod made of a buffer cylindrical portion in the form of a cylinder extending to the center of the lower portion of the buffer fastening portion; a buffer case formed in a cylindrical shape with an empty interior and accommodating the lower end of the buffer rod; a buffer stopper coupled to the lower outer surface of the buffer cylinder of the buffer rod; a buffer connection part coupled to the lower part of the buffer rod and connecting the buffer rod and the inner surface of the buffer case, but having a cross-section in the shape of a ten (十); And it is preferable to include a; and a buffer bent portion coupled between the outer surface of the buffer stopper and the inner surface of the buffer case.

According to the spatial imaging system of the present invention, each is installed at two or more calibration reference points arbitrarily selected among the topographical features in the area where aerial photography is being performed to measure the GPS coordinates of each calibration reference point, measure the distance to the surrounding geographical features, and It has the effect of accurately drawing symmetrical features by precisely maintaining the level of the surveyor that synthesizes and creates the drawing image using it.

In addition, according to the present invention, it is possible to finely adjust the rising and falling of the camera and the laser rangefinder, and there is an effect of attenuating the shock and vibration transmitted from the outside of the measuring instrument to enable precise measurement of the target feature.

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 a block diagram of a spatial imaging system according to an embodiment of the present invention.
Figure 2 is a front view of the measuring instrument according to an embodiment of the present invention.
3 is an exemplary view of a measuring instrument disposed on a slope according to an embodiment of the present invention.
4 is a cross-sectional view of a leveling part of a surveyor according to an embodiment of the present invention.
5 is a cross-sectional view of a second lifting shaft according to an embodiment of the present invention.
6 is an exemplary view of a fine elevating adjustment unit according to an embodiment of the present invention.
7 is a partially enlarged view of a fine elevating adjustment unit according to an embodiment of the present invention.
8 is a cross-sectional view of the first lifting shaft according to an embodiment of the present invention.
9 is a cross-sectional view of a buffer support according to an embodiment of the present invention.
10 is a front perspective view of a target according to an embodiment of the present invention.
11 is a rear perspective view of a target according to an embodiment of the present invention;
12 is an exemplary view showing distance measurement using a laser rangefinder according to an embodiment of the present invention.
13 is an exemplary view showing the drawing image correction performed by the drawing image corrector according to an embodiment of the present invention.

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.

The present invention is installed at two or more calibration reference points arbitrarily selected among the geographic features of the area where aerial photography is performed, measures the GPS coordinates of each calibration reference point, measures the distance to the surrounding geographic features, and synthesizes drawing images based on this designed to create

To this end, the present invention provides a surveying device 100, a survey data storage 200 for wirelessly receiving GPS coordinate data and distance data transmitted by the surveying device and storing them in an allocated area, and image data secured by aerial photography. An aerial photographed image DB 300 to be stored in the designated area, a drawing image is created by synthesizing the GPS coordinate data and distance data stored by the survey data storage device to the image data stored in the aerial photographed image DB, and a drawing image is created and implemented in a computer The processor 400 corrects the drawing image generated by the drawing processor, but based on the GPS coordinate data and distance data synthesized in the drawing image, the location of the correction reference points displayed on the drawing image and the location of the corresponding landmark and a drawing image corrector 500 that partially enlarges or reduces the drawing image to match the scale ratio to generate a final drawing image, and implements the drawing image corrector 500 and the drawing image corrector in a computer. It is configured to include a drawing image DB (900).

1 is a block diagram of a spatial imaging system according to an embodiment of the present invention, FIG. 2 is a front view of a surveyor according to an embodiment of the present invention, and FIG. 3 is disposed on a slope according to an embodiment of the present invention It is an example diagram of a built-in measuring instrument.

As described above, the spatial image drawing system according to the present invention includes a surveyor 100, a survey data storage 200, an aerial photographed image DB 300, a drawing processor 400, a drawing image corrector 500 and a drawing image. It is configured to include a DB (900).

In the present invention, the measuring instrument 100 is installed at two or more calibration reference points arbitrarily selected from among the topographical features of the area where aerial photography is performed to position the GPS coordinates of each calibration reference point, and from the positioned GPS coordinates to various nearby features Measures the distance of , and transmits the acquired GPS coordinate data and distance data to the outside through a wireless communication network.

That is, the present invention arbitrarily selects a plurality of correction reference points from among the geographic features of the area where aerial photography is performed, and actually measures the GPS coordinates of each correction reference point and the distance from the corresponding GPS coordinates to the surrounding features, and the obtained GPS coordinates Based on the data and distance data, it is characterized in that correction is performed on the illustrated aerial photographed image in which distortion due to optical limitations may appear.

Here, the measuring instrument 100 performs a function of collecting GPS coordinate data at each calibration reference point, which is the basis for such a correction, and distance data from the corresponding GPS coordinates to surrounding features.

Referring to FIG. 2 , the measuring instrument 100 includes a support plate 110 formed of a rectangular flat member, one side supporting the bottom surface of the support plate and the other side being in rolling contact with the ground at least two to maintain the horizontal of the support plate. The above-mentioned leveling part 1180, the support pipe 130 provided through the central part of the support plate, the fixing part 131 provided on the upper part of the support pipe, and the first part mounted to be movable in the vertical direction on the support pipe. 1 lifting shaft 132, is coupled to the upper end of the first lifting shaft, the control unit 140 including a manipulation unit 141, is mounted on the upper end of the control unit so as to be able to rotate in the horizontal direction and move in the vertical direction. A second lifting shaft 150 to be used, a mounting plate 160 provided on the upper end of the second lifting shaft and formed of a circular flat member, a laser distance meter 170 mounted on the upper surface of the mounting plate, and the laser An observation camera 180 mounted on the upper part of the range finder to face the same direction as the direction to which the laser range finder faces, and a target 700 installed in front of a feature to receive the laser beam irradiated from the laser range finder. do.

In addition, the measuring instrument 100 of the present invention is inserted into the inside of the support plate, and is ejected when used, and the injection fixing part 111 for fixing the measuring instrument by coupling in the form of fitting or ring coupling to surrounding features. ), a plurality of LED warning lights 112 mounted on the side of the support plate and emitting light to the surroundings, a GPS receiver 113 mounted on the upper surface of the support plate and measuring GPS coordinates, provided on the upper surface of the support plate and is mounted on the upper surface of the support plate and the monitor 114 that displays the video image of the landmark observed by the observation camera, the GPS coordinates measured by the GPS receiver, distance data measured by the laser rangefinder, and the observation It may further include a transceiver 115 for receiving the video image of the feature observed by the camera and wirelessly transmitting it to the outside.

The support plate 110 is formed of a rectangular flat plate member, one side of which supports the bottom surface of the support plate and the other side is in rolling contact with the ground. to provide The function and operation principle of the leveling unit 1800 will be described later.

The injection fixing part 111 is inserted into the inside of the support plate 110 and is ejected when used, and performs a function of fixing the measuring instrument by coupling it in the form of fitting or ring coupling to surrounding features, After the support plate 110 of the level is maintained, the measuring instrument itself is completely fixed so that the surveying operation can be performed.

The plurality of LED warning lights 112 are mounted on the side of the support plate 112, and when the measuring instrument 100 is used in a dark environment such as night work, the plurality of LED warning lights 112 can be turned on to improve the convenience of work. .

The support pipe 130 is a tubular member provided through the central part of the support plate 110, and has a fixing part 131 coupled through the side surface at the upper part, and moves vertically into the support pipe. The first lifting shaft 132 is inserted to be movable.

At this time, the first lifting shaft 132 moves in the vertical direction through the support pipe 130 in a state in which the fixing part 131 formed of a bolt member is released, and when an appropriate height is set, the fixing part ( 131) is tightened so that its height is fixed.

If there is an obstacle that interferes with the measurement of the laser range finder 170 and the observation camera 180, by elevating the first lifting shaft 132, you can get out of the obstacle and perform the desired surveying task. .

Referring to FIG. 8 , the first lifting shaft 132 forms a center bar 133 penetrating the inside, and buffer supports 600 may be formed on both sides around the center bar 133 . The buffer support 600 functions to cancel vibration and shock transmitted from the ground, etc. to prevent shaking of the laser range finder 170 and the observation camera 180, thereby assisting in the acquisition of precise measurement data.

The control unit 140 of the present invention is configured to be coupled to the upper end of the first lifting shaft 132, a control circuit is provided therein, and a manipulation unit 141 is included on the outside thereof. Through the manipulation unit 141, the user can measure the distance of the laser range finder 170, observe the features of the observation camera 180, operate the lifting operation of the first lifting shaft 132, and rotating the second lifting shaft 150 and A lifting operation and the like can be performed.

The second lifting shaft 150 is configured to be mounted on the upper end of the control unit 140 so as to be able to rotate in the horizontal direction and move in the vertical direction, and is different from the vertical movement of the first lifting shaft 132 Separately, by rotating or elevating the mounting plate 160 provided on the upper end of the second lifting shaft, the distance measurement of the laser rangefinder 170 and the observation of the observation camera 180 are more easily supported.

The laser range finder 170 is a configuration mounted on the upper surface of the mounting plate 160, and performs a function of deriving a distance to a feature using a laser beam. On the other hand, in the present invention, the observation camera 180 and the upper part of the support plate 110 are mounted to face the same direction as the direction in which the laser range finder is directed on the upper part of the laser range finder 170 to check the features for distance measurement. It is provided on the surface, and further includes a monitor 114 for displaying the video image of the feature observed by the observation camera.

The observation camera 180 includes a visible ray camera using a visible ray image signal and an infrared camera using an infrared image signal, in order to stably perform photographing in various environments.

In addition, an illuminance sensor 116 may be further provided on the upper surface of the support plate 110. After the control unit 140 receives the illuminance value around the measuring instrument 100 from the illuminance sensor, the illuminance value is preset. When the illuminance value is higher than the illuminance value, the visible light camera of the observation cameras 180 is driven, and when the illuminance value is lower than the preset illuminance value, the infrared camera and the LED warning light 112 among the observation cameras can be controlled to be driven.

In the present invention, among the components of the measuring instrument 100, the support plate 110, the support pipe 130, the first lifting shaft 132, the second lifting shaft 150, and the mounting plate 160, and the horizontal holding part ( 1180) of the first base bar 1182, the first mounting bar 1183, the second base bar 1186, and the second mounting bar 1187, Si: 0.22 wt% or less, Fe: 0.27 wt% or less, Cu: 0.06 wt % or less, Mg: 1.7-1.9 wt %, Zn: 6.3-6.8 wt %, Ti: 0.07 wt % or less, Zr: 0.3-0.5 wt % and the remainder Al can be formed of a rigid aluminum material However, if it is formed of such a material, since it has a tensile strength of 451 MPa and a yield strength of 414 Mpa or more, rigidity and stability can be guaranteed.

In addition, among the components of the measuring instrument 100 , the support plate 110 , the support pipe 130 , the first lifting shaft 132 , the second lifting shaft 150 and the mounting plate 160 , and the horizontal holding unit 1180 . ) of the first base bar 1182, the first mounting bar 1183, the second base bar 1186 and the second mounting bar 1187 each has a coating layer on its surface, but the coating layer is a rigid aluminum material It may be formed by spraying an alloy powder containing 26.7 to 50.3 parts by weight of a zirconium content and 38.3 to 69.7 parts by weight of a niobium content, and 1.3 to 2.3 parts by weight of scandium or yttrium with respect to 100 parts by weight. When the above coating layer is provided, the Vickers hardness is 750 to 1,100 Hv (0.2), and the friction coefficient becomes 0.0008 to 0.06 μ under a load of 100 N, so durability, corrosion resistance, friction resistance and abrasion resistance can be provided.

Since the work using the measuring instrument 100 is a surveying work performed outdoors, it is common to be exposed to various environments that can damage various components, so the main components are configured as above so that they are not easily corroded or damaged in various environments. It is configured to include a material and a coating layer.

On the other hand, the survey data storage 200 of the present invention is a configuration for receiving and storing the GPS coordinate data and the measured distance data of each calibration reference point transmitted by the surveying device 100, specifically, a wireless communication means and a memory means It is implemented as an equipped computer device.

And, the aerial photographed image DB 300 is a means for storing image data generated as a result of aerial photographing, and since recent aerial photographing is performed in a digital manner, the server communicates in real time with the aircraft in the aerial photographing process. If it can be done, it is also possible to build a DB by receiving image data at the same time as shooting. In this case, the aerial photographed image DB will be implemented in a memory unit of a computer device that communicates in real time with an aircraft performing aerial photographing.

The drawing processor 400 is implemented in a computer to generate a drawing image by synthesizing the GPS coordinate data and distance data stored in the survey data storage 200 with the image data stored in the aerial photographed image DB 300 is the composition That is, it is implemented as a computer equipped with a processor and S/W for performing image synthesis. In addition, the drawing processor 400 generates a drawing image by synthesizing or reflecting the GPS coordinate data measured by the measuring instrument 100 and the measured distance data to the calibration reference point displayed in the aerial photographed image DB 300 .

The drawing image corrector 500 corrects the drawing image generated by the drawing processor 400, but based on the GPS coordinate data and distance data synthesized in the drawing image, the location and surroundings of the calibration reference points displayed on the drawing image It is a module implemented in a computer to generate a final drawing image by partially enlarging or reducing the drawing image using a well-known digital image processing technology so that the location of the feature appears coincidentally on the scale.

4 is a cross-sectional view of a leveling part of a measuring instrument according to an embodiment of the present invention.

In the present invention, one side of which supports the bottom surface of the support plate 110 and the other side includes at least two leveling parts 1180 that are in rolling contact with the ground and maintain the horizontality of the support plate 110 .

The horizontal maintaining unit 1180 includes a coupling block 1181 provided on the bottom surface of the support plate 110 , a first base bar 1182 , one side of which is rotatably coupled to the coupling block 1181 , and one side portion The first mounting bar 1183 disposed inside the first base bar 1182 and moved to the inside of the first base bar 1182 , and the first horizontal first mounting bar 1183 provided on the first mounting bar 1183 and in rolling contact with the ground. The roller 1184 and a first spring member having one side coupled to the inside of the first base bar 1182 and the other side coupled to the first mounting bar 1183 to guide the first mounting bar 1183 to be adjusted in length. (1185).

In addition, one side of the horizontal maintaining unit rotates on the coupling block 1181 so as to be symmetrical to the first base bar 1182 , the first mounting bar 1183 , the first horizontal roller 1184 , and the first spring member 1185 . A second base bar 1186 that is operably coupled, a second mounting bar 1187 with one side portion disposed inside the second base bar 1186 and moved to the inside of the second base bar 1186, and the second A second horizontal roller 1188 provided on the mounting bar 1187 and in rolling contact with the fixing plate 1112 , one side is coupled to the inside of the second base bar 1186 , and the other side is coupled to the second mounting bar 1187 . It further includes a second spring member 1189 for guiding the length of the second mounting bar 1187 to be adjusted.

In addition, the horizontal maintaining unit 1180 connects the first base bar 1182 and the second base bar 1186 to maintain a gap between the first base bar 1182 and the second base bar 1186 . It includes a body connection spring (1190).

As described above, the leveling unit 1180 of the present invention can be operated with a mechanical structure using a spring without additional electric energy supply, and when the support plate 110 is tilted or returned to its original position, the leveling unit 1180 can be operated again. The first spring member 1185, the second spring member 1189, and the body connection spring 1190 provided on can

In addition, in the present invention, the first mounting bar 1183 and the second mounting bar 1187 are automatically lengthened to correspond to the inclination of the support plate 110 by the first spring member 1185 and the second spring member 1189 . It can be adjusted, and if the support plate 110 is tilted on the horizontal surface and returned to the horizontal level, the first spring member 1185 and the second spring member 1189 may be returned to their original positions by expansion and contraction.

Furthermore, in the present embodiment, a plurality of leveling units 1180 may be provided in a radial shape to more efficiently support the horizontality of the mounting plate 1111 and further attenuate an impact transmitted from the outside.

On the other hand, the horizontal maintaining unit 1180 includes a first stopper 1191 formed on one side of the first mounting bar 1183 and a second stopper 1192 formed on one side of the second mounting bar 1187 . have more

The first stopper 1191 and the second stopper 1192 are directed toward the side where the body connection spring 1190 is located, that is, the side where the first mounting bar 1183 and the second mounting bar 1187 are close to each other. Each may be formed on one side, the cross-section may be formed in a triangular shape.

The measuring instrument 100 of the present invention can be moved at the survey site by the first horizontal roller 1184 and the second horizontal roller 1188 each provided in at least two or more leveling units 1180 .

However, referring to Figure 2, when the support plate 110 is maintained horizontally when fixing the measuring instrument 110 at the survey site, since the load transmitted to each leveling unit 1180 is similar, each leveling unit ( The angle formed between the first base bar 1182 and the second base bar 1186 of 1180 is similar, and the first horizontal roller 1184 and the second horizontal roller ( 1188) becomes similar. For reference, the weight of the monitor 114 of the present invention and the combined weight of the GPS receiver 113 , the transceiver 115 , the illuminance sensor 116 , and the horizontal sensor 117 are preferably mounted to be similar.

At this time, the first mounting bar 1183 and the second mounting bar 1187 move in a direction away from each other, and when the angles of both of them reach a certain degree, the first stopper 1191 and the first stopper 1191 having a triangular shape 2 The stopper 1192 is fixed in close contact with the ground, and the support plate 110 is maintained horizontally.

On the other hand, FIG. 3 shows a state in which the support plate 110 of the measuring instrument is maintained horizontally on a slope. Among the two horizontal maintaining parts 1180, the horizontal maintaining part located on the lower side of the slope is the first mounting bar 1183 and The second mounting bar 1187 is moved in the approaching direction, and the horizontal maintaining part positioned above the slope is moved in the direction in which the first mounting bar 1183 and the second mounting bar 1187 are away.

When the angle formed by the first mounting bar 1183 and the second mounting bar 1187 of the horizontal maintaining unit positioned above the slope becomes a certain degree, the first stopper 1191 and the second stopper 1192 having a triangular shape ) is fixed in close contact with the ground, and the horizontal holding part located below the slope is also limited in movement and fixed in place. At this time, the user is inserted into the inside of the support plate 110 and is ejected when in use to fix the instrument by using the injection fixing part 111 that is coupled to the surrounding features in the form of fitting or ring coupling. will be able to complete

For reference, a horizontal sensor 117 is further provided on the upper surface of the support plate 110, and when the support plate is not in a horizontal state after the control unit 140 receives the horizontal value of the support plate from the horizontal sensor, the monitor is operated. An alarm can be sent to the user through

5 is a cross-sectional view of a second lifting shaft according to an embodiment of the present invention, FIG. 6 is an exemplary view of a fine lifting and lowering adjustment unit according to an embodiment of the present invention, and FIG. 7 is a microscopic view according to an embodiment of the present invention. It is a partially enlarged view of the lifting control unit.

In the present invention, the second lifting shaft 150 is a configuration that is mounted on the upper end of the control unit 140 so as to be able to rotate in the horizontal direction and move in the vertical direction, and a mounting plate provided at the upper end of the second lifting shaft ( By rotating or elevating the 160), the laser rangefinder 170 performs a function of measuring the distance and the observation camera 180 more easily.

The second lifting shaft 150 has a second lifting rod 153 penetrating therein, and the second lifting rod 153 also rises or descends as the second lifting shaft 150 rises or descends. , the second lifting shaft 150 and the second lifting rod 153 lift or lower the mounting plate 160 together.

The present invention may include a fine elevating adjustment unit 800 that is in close contact with the upper end of the inner surface of the second elevating shaft 150 and is fastened to the second elevating rod 153 . The fine elevating control unit 800 moves along the protrusion 152 formed on the upper end of the inner surface of the second elevating shaft 150, and the branch of the wheel 810 is seated in the insertion groove 151, and the mounting plate ( 160), the laser range finder 170 and the observation camera 180 will function for a fine rise or fall.

Referring to FIG. 6 , the fine lifting and lowering control unit 800 includes two supports 840 that are fastened using a rounding fastener 830 and a bearing 820 that are inserted and fastened into the second lifting rod 153 . ), and a wheel 810 branching into a plurality of branches from the rotation shaft of the end of the support 840 may be formed.

The rounding fastener 830 is inserted into and fastened to the second lifting rod 153 , and is fastened with the two supports 840 using bearings 820 at both ends of the rounding fastener 830 . The support 840 may have a length so as to be disposed in an empty space between the inner circumferential surface of the second lifting shaft 150 and the second lifting rod 153, and the end of the support 840 has a rotation shaft, but a rotation shaft A wheel 810 capable of hinged motion is provided based on the .

The wheel 810 may include a plurality of branches having a rectangular cross-section, and the second lifting rod 153 rises or descends while rotating as the second lifting rod 153 rises or descends.

To this end, referring to FIG. 7 , the inner circumferential surface of the second lifting shaft 150 is provided with a protrusion 152 and an insertion groove 151 , so that the wheel 810 of the fine lifting and lowering adjustment unit 800 rotates and branches thereof While any one of them is seated between the insertion grooves 151 , the other two branches function to be in close contact with the upper surface of the protrusion 152 .

In this way, the fine elevating control unit 800 is inserted into and fastened to the second elevating rod 153, and is on the inner surface of the second elevating shaft 150 according to the rise or fall of the second elevating rod 153. The wheel 810 in close contact rises or descends along the protrusion 152 formed on the inner surface of the second lifting shaft 150, and any one of the branches of the wheel 810 is inserted into the insertion groove 151, will be settled

At this time, due to the branch of the wheel 810 seated in the insertion groove 151 and the two branches in close contact with the protrusions 152 on both sides thereof, the rising or falling of the second lifting rod 153 is increased to a certain degree. A restriction may be applied, and in order for the second lifting rod 153 to ascend or descend, a force of a certain level or more is applied to the branch of the wheel 810 so that the wheel 810 can perform a hinge motion.

Therefore, the fine lifting control unit 800 may limit the ascending or descending height of the second lifting rod 153 step by step due to the structure of the branches of the wheel 810, the insertion groove 151, and the protrusion 152. In the end, it is possible to adjust the fine height of the laser rangefinder 170 and the observation camera 180 on the cradle 160 .

The branch of the wheel 810 may have a rectangular cross-section, but in order to make it easier to ride over the protrusion 512, it may be applied by rounding each corner of the rectangle.

In addition, the wheel 810, 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 wheel 810 using such a coating composition, the abrasion resistance of the surface of the sliding part is improved and friction resistance is strengthened so that the branch of the wheel 810 can smoothly rotate on the protrusion 152. can help

Figure 8 is a cross-sectional view of the first lifting shaft according to an embodiment of the present invention, Figure 9 is a cross-sectional view of the buffer support according to an embodiment of the present invention.

In the present invention, the first lifting shaft 132 is inserted into the support pipe 130 to be movable in the vertical direction, and the first lifting shaft 132 forms a center bar 133 penetrating the inside, The buffer support 600 may be formed on both sides around the center bar 133 . The buffer support 600 may be formed in a plurality of pairs on the center bar 133 .

The inner circumferential surface of the first lifting shaft 132 is brought into close contact with the buffer support 600, and the buffer support 600 of the present invention functions to alleviate vibration or shock transmitted from the inside and outside of the measuring instrument 100. do.

9, the buffer support 600 is made to include a buffer rod 610, a buffer case 620, a buffer stopper 630, a buffer connection part 640 and a buffer bending part 650, the center bar (133) as the center is arranged one on the left and right, respectively.

The buffer rod 610 is formed so as to be in close contact with the inner circumferential surface of the first lifting shaft 132, and the buffer fastening part 611 in the form of a disk and the buffering cylinder in the form of a cylinder extending to the center of the lower part of the buffer fastening part 611 (612). The buffer case 620 is formed in a cylindrical shape with an empty interior, and the lower end of the buffer rod 610 is accommodated.

The buffer stopper 630 is coupled to the lower outer surface of the buffer cylinder portion 612 of the buffer rod (610). The buffer stopper 630 is formed in a ring shape, and is disposed inside the buffer case 620 . When a large vibration or shock is applied from the outside and the buffer rod 610 is greatly shaken, the buffer stopper 630 is in contact with the inner surface of the buffer case 620 to perform large displacement control. A predetermined gap (G) is formed between the outer surface of the buffer stopper 630 and the inner surface of the buffer case 620 .

The buffer connection part 640 is coupled to the lower portion of the buffer rod 610 and connects between the buffer rod 610 and the inner surface of the buffer case 620 . The buffer stopper 630 and the buffer connection part 640 may be formed of a rubber material.

That is, the buffer stopper 630 and the buffer connection part 640 may be formed of a rubber elastomer composition, wherein the rubber elastomer composition includes 60 to 80 parts by weight of carbon black, dicumyl peroxide (dicumyl) based on 100 parts by weight of raw rubber. Peroxide) containing 2 to 4.5 parts by weight of a curing agent, 1.5 to 2.5 parts by weight of an accelerator containing sulfuramide and 3-bisbenzene, and 0.4 to 4.7 parts by weight of an antioxidant containing trimethyl quinoline and phenyldiamine, Black is 50 to 70% by weight of the first carbon black having an average particle diameter of 60nm to 70nm; and 30 to 50 wt % of the second carbon black having an average particle diameter of 15 nm to 35 nm.

When the buffer stopper 630 and the buffer connection part 640 are formed with such an elastic rubber composition, carbon black having a relatively large particle size is used to improve durability and abrasion resistance as well as heat resistance. .

The buffer connection part 640 extends to the side of the buffer upper and lower portions 641 and the buffer upper and lower parts 641 connecting the lower end of the buffer rod 610 and the inner lower surface of the buffer case 620 up and down to extend the buffer case 620 ) includes a buffer left and right portions 642 that connect left and right between the inner side surfaces. The buffer connection part 640 may have a 'ten (十)'-shaped cross-section as a whole.

Between the outer surface of the buffer stopper 630 and the inner surface of the buffer case 620, that is, the buffer bent portion 650 is coupled to the gap (G) to connect the buffer stopper 630 and the buffer case 620 with each other. . Specifically, the buffer curved portion 650 is made including a first curved portion 651, a second curved portion 652, a third curved portion 653, a fourth curved portion 654 and a fifth curved portion 655, and as a whole It has a 'zigzag' cross section.

The first curved portion 651 is coupled to the outer surface of the buffer stopper 630 and is formed in a single shape. The second curved portion 652 extends from the side end of the first curved portion 651 obliquely in the opposite side end direction. The third curved part 653 horizontally extends from the side end of the second curved part 652 in the opposite side end direction, and the fourth curved part 654 extends obliquely from the side end of the third curved part 653 in the opposite side end direction. The fifth curved portion 655 horizontally extends from the side end of the fourth curved portion 654 in the opposite side end direction and is coupled to the inner surface of the buffer case 620 .

At this time, the horizontal length of the first curved part 651 is formed to be relatively longer than the horizontal length of the third curved part 653 , and the horizontal length of the third curved part 653 is relatively longer than the horizontal length of the fifth curved part 655 . is formed with a long That is, the overall length of the cushioning curved portion 650 is gradually shortened from the first curved portion 651 toward the fifth curved portion 655 in the direction.

In addition, the thickness of the first curved portion 651 to the fifth curved portion 655 is preferably formed to be the same overall. An angle between the first curved portion 651 and the second curved portion 652 , an angle between the second curved portion 652 and the third curved portion 653 , and an angle between the third curved portion 653 and the fourth curved portion 654 . and the angle between the fourth curved portion 654 and the fifth curved portion 655 is preferably set to be substantially the same overall.

In this way, the buffer support 600 of the present invention, while maintaining the physical gap (G) between the buffer stopper 630 and the buffer case 620 as it is, using the buffer bending portion 650 to substantially reduce the gap Since the effect can be obtained, there is an advantageous characteristic in controlling large displacement vibration while reducing noise caused by frequent contact of the buffer stopper 630 .

On the other hand, the buffer case 620 may be fixedly coupled to the center bar 133, which may be formed of rigid aluminum or the like, by providing a magnet (not shown) on the surface coupled to the center bar 133 . At this time, the magnet (not shown) attached to the side of the buffer case 620 is 13.4 atomic% or more and 19.7 atomic% or less, boron (B) 4.3 atomic% or more, as at least one selected from rare earth elements including neodymium and boron. 7.4 atomic % or less, manganese (Mn) 0.07 atomic % or more and 0.36 atomic % or less, as at least one selected from the group consisting of V, Nb, Mo, Ga, In, W, Hf, Bi, Ti, and Ta as an additive element It is possible to apply a sintered magnet formed with a balance greater than 0.1 and not more than 4.6 atomic%, containing iron (Fe) and cobalt (Co) as transition metals.

When a sintered magnet is formed with the above composition, since the sintering reaction is promoted by the addition of a predetermined amount of Mn, the sintered structure can be homogenized by enabling low-temperature or short-time sintering. In addition to improving the coercive force in the vicinity, there is an advantage in that a higher coercive force can be obtained than a conventional magnet even at a high temperature of 60°C or higher.

On the other hand, according to the needs of the present invention, a plurality of the buffer support 600 may be disposed between the mounting plate 160 and the laser distance measurer 170, and the vibration and shock transmitted from the measuring instrument 100 are alleviated to reduce the laser distance measurer. The shaking of 170 and the observation camera 180 can be further prevented. Accordingly, the laser rangefinder 170 and the observation camera 180 may acquire more precise measurement data.

10 and 11 are a front perspective view and a rear perspective view of a target according to an embodiment of the present invention.

As described above, the laser range finder 170 is configured to be mounted on the upper surface of the mounting plate 160, and performs a function of deriving a distance to a feature using a laser beam.

On the other hand, since the basic laser range finder 170 knows the speed of the laser beam or laser light, it is common to derive the distance to the relevant feature by measuring the time when the laser beam is irradiated to the desired feature, reflected again, and returned. am.

However, in this method, there is a problem in that distance data calculation cannot be performed precisely in the case where the feature does not properly reflect the laser beam or the laser beam does not reach the feature at all. A target 700 that is installed and receives the laser beam irradiated from the laser range finder 170 may be further applied.

The target 700 is a target pillar 710 supported in a state embedded in the ground, a target plate 720 on a square plate coupled to the upper end of the target pillar, a target hole 721 formed in the center of the target plate, A target photodiode 722 mounted on the rear surface of the target hole, a target communication unit 723 installed on one side of the target plate to transmit and receive wireless signals, a target lamp 724 mounted on the front surface of the target plate, and the target It is mounted on a plate, controls the target photodiode, the target communication unit, and the target lamp, and when the laser beam is received through the target photodiode, stores the time of light reception, and transmits the time information to the laser rangefinder at the same time as the laser beam. It is configured to include a target control board 725 for synchronizing the time by receiving a synchronization signal from the distance meter.

More specifically, the target 700 is composed of a target pillar 710 that is embedded in the ground and supported and a target plate 720 on a square plate fixed to the top of the target pillar, and the laser distance is at the center of the target plate. A target hole 721 is formed in a predetermined size so that the laser beam irradiated from the measuring device 170 can be received, and a target photodiode 722 is mounted on the rear surface of the target hole in a form embedded in the target plate, The target photodiode is connected and controlled with a target control board 725 provided on the target plate.

Here, the target control board 725 is a printed circuit board on which an MCU (Micro Controller Unit) is mounted, and is a controller having a clock synchronization function to set the time, and the laser beam is received through the target photodiode 722 . When this is detected, it is confirmed that the laser beam has been received correctly, and the time of the laser beam is received and the time of the reception is stored at the same time to transmit the time information to the laser range finder 170 . Accordingly, when a synchronization signal is received from the laser range finder, the time is synchronized according to the signal.

To this end, a target communication unit 723 capable of transmitting and receiving a wireless signal is further installed on one side of the target plate 720 and is configured to transmit and receive signals by being connected to the target control board 725 . In addition, a target lamp 724 is provided on the front surface of the target plate 720 so that the laser beam is turned on when the laser beam from the laser rangefinder 170 is received by the target photodiode 722, so that the laser beam is the target 700 It is configured so that the user can easily check from a distance that the

On the other hand, the laser rangefinder 170 of the present invention is equipped with a separate communication module and can be configured to transmit and receive wireless signals to and from the target 700, and receives information such as the speed of the laser beam and arrival time from the target. The distance to the target 700 is calculated using the obtained information.

12 is an exemplary view illustrating distance measurement using a laser rangefinder according to an embodiment of the present invention.

Referring to FIG. 12 for distance data measurement, the laser range finder 170 mounted on the mounting plate 160 measures the distance to the feature 1 (target installed on the feature 1) in the north direction, and the following After rotating at a certain angle in the direction of the feature, by measuring the distance to feature 2 (target installed on feature 2), the distance from the calibration reference point where the surveyor 100 is installed to the surrounding feature is measured and the distance will produce data.

The distance data to the surrounding features may be obtained by irradiating a laser beam by the laser rangefinder 170 by itself or may be obtained through remote control, and in addition, may be automatically processed by an installed program. am.

In addition, the GPS receiver 113 is provided on the upper surface of the support plate 110 as a means for positioning GPS coordinates, and is implemented as a conventional GPS measuring device that analyzes a signal received from a GPS satellite in real time to position the coordinate value. This is possible.

In addition, the transceiver 115 is provided on the upper surface of the support plate 110 and is circuitly connected to the GPS receiver 113 , the laser range finder 170 , and the observation camera 180 , so that the GPS receiver is positioned. A device that stores GPS coordinate data, distance data measured by the laser rangefinder, and video image taken by the observation camera, and transmits it to a designated external terminal (including a monitor) through wireless communication. Memory semiconductor and signal processing A circuit, a wireless communication circuit, and an antenna are provided.

Thus, the GPS coordinate data and distance data transmitted by the transceiver 115 are received and stored by the survey data storage 200 in real time.

13 is an exemplary view showing the drawing image correction performed by the drawing image corrector according to an embodiment of the present invention.

An example in which the drawing image corrector performs correction on the drawing image will be described with reference to FIG. 13 .

First, the drawing shown on the left side of FIG. 13 is a drawing image. If you look at the drawing image, a place represented by a black dot is a calibration reference point, and a triangular and circular topographical feature is shown around the calibration reference point.

However, if it is assumed that the distance from the reference point to the circle corresponds to the actual distance data in terms of scale, but the distance from the reference point to the triangle is smaller or larger than the actual distance data in consideration of the scale, the drawing image corrector As represented on the right side of FIG. 13 , reference numeral 500 performs correction to correspond to actual distance data by partially reducing or enlarging a triangle image in a circle indicated by a dotted line to generate a final drawing image.

Here, the drawing image DB 900 is a configuration for storing the final drawing image generated by the drawing image corrector 500 and may be implemented with a typical server computer.

As a result, the present invention is installed at two or more calibration reference points arbitrarily selected among the topographical features in the area where aerial photography is performed, measures the GPS coordinates of each calibration reference point, measures the distance to the surrounding topographical features, and based on this, a drawing image is obtained. By synthesizing and creating, it has the advantage of accurately drawing symmetrical features using video images.

In addition, according to the present invention, it is possible to precisely maintain the level of the measuring instrument, to adjust the fine rise and fall of the camera and laser rangefinder, and to attenuate the shock and vibration transmitted from the outside of the measuring instrument to precisely measure the target feature. There are advantages to making it possible.

Although the present invention has been described above in relation to specific embodiments of the present invention, 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.

100: instrument 110: support plate
111: injection fixing unit 112: LED warning light
113: GPS receiver 114: monitor
115: transceiver 116: illuminance sensor
117: horizontal sensor 130: support pipe
131: fixing part 132: first lifting shaft
133: center bar 140: control unit
141: control unit 150: second lifting shaft
160: mounting plate 170: laser range finder
180: observation camera 200: survey data storage
300: aerial photographed image DB 400: drawing processor
500: drawing image corrector 600: buffer support
610: buffer rod 620: buffer case
630: buffer stopper 640: buffer connection part
650: buffer bend 700: target
710: target column 720: target plate
721: target ball 722: target photodiode
723: target communication unit 724: target lamp
725: target control board 726: ultrasonic oscillator
800: fine elevating control unit 810: wheel
820: bearing 830: round fastener
840: support 900: drawing image DB
1180: horizontal holding unit 1181: combining block
1182: first base bar 1183: first mounting bar
1184: first horizontal roller 1185: first spring member
1186: second base bar 1187: second mounting bar
1188: second horizontal member 1189: second spring member
1190: body connection spring 1191: first stopper
1192: second stopper

Claims (1)

measuring instrument; a survey data storage device for wirelessly receiving the GPS coordinate data and distance data transmitted by the surveying device and storing the received GPS coordinate data and distance data in an allocated area; An aerial photographed image DB for storing image data secured by aerial photographing in an allocated area; a drawing processor for synthesizing the GPS coordinate data and distance data stored in the survey data storage device with the image data stored in the aerial photographed image DB to generate a drawing image and to implement it in a computer; The drawing image generated by the drawing processor is corrected, but the distance and scale ratio of the location of the calibration reference points displayed on the drawing image and the location of the corresponding feature are identical based on the GPS coordinate data and distance data synthesized in the drawing image a drawing image corrector that partially enlarges or reduces the drawing image to create a final drawing image and implements it in a computer; and a drawing image DB for storing the final drawing image generated by the drawing image corrector in an allocated area; In the spatial imaging system comprising a,
The meter is
a support plate formed of a rectangular flat member;
At least two or more horizontal maintaining parts doedoe rolling in contact with the ground and maintaining the horizontal surface of the support plate at one side and the other side supporting the bottom of the support plate;
a GPS receiver mounted on the upper surface of the support plate and measuring GPS coordinates;
a support pipe provided through the central portion of the support plate;
a first lifting shaft mounted to the support pipe to be movable in the vertical direction;
a control unit coupled to an upper end of the first lifting shaft and including a manipulation unit;
a second lifting shaft mounted on the upper end of the control unit to enable horizontal rotation and vertical movement;
a mounting plate provided on the upper end of the second lifting shaft and formed of a circular flat plate member;
a laser range finder mounted on the upper surface of the mounting plate;
an observation camera mounted on the upper part of the laser range finder to face the same direction as the direction to which the laser range finder faces; and
A target installed in front of a feature to receive the laser beam irradiated from the laser rangefinder; is configured to include,
Further provided with a fine elevating control unit which is in close contact with the upper end of the inner surface of the second lifting shaft and is fastened to the second lifting rod,
The fine elevating control unit,
A wheel having a plurality of branches branched from the rotation shaft of the end of the support and a rounding fastener fastened by inserting into the upper portion of the second lifting rod and two supports fastened using a bearing, the second lifting rod As the wheel ascends or descends, the wheel rotates along the protrusion formed on the inner surface of the second lifting shaft, and any one of the branches of the wheel is seated in the insertion groove,
The wheel 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 is coated with a coating composition consisting of a lubricant,
Further provided with a buffer support that is in close contact with the lower end of the inner surface of the first lifting shaft, and is coupled to the center bar formed while penetrating the inside of the first lifting shaft,
The buffer support is,
a buffer fastening part coupled to the center bar and having a disk shape; a buffer rod made of a buffer cylindrical portion in the form of a cylinder extending to the center of the lower portion of the buffer fastening portion; a buffer case formed in a cylindrical shape with an empty interior and accommodating the lower end of the buffer rod; a buffer stopper coupled to the lower outer surface of the buffer cylinder of the buffer rod; a buffer connection part coupled to the lower part of the buffer rod and connecting the buffer rod and the inner surface of the buffer case, but having a cross-section in the shape of a ten (十); and a buffer bent portion coupled between the outer surface of the buffer stopper and the inner surface of the buffer case;
The buffer stopper and the buffer connection portion, based on 100 parts by weight of raw rubber, 60 to 80 parts by weight of carbon black; 2 to 4.5 parts by weight of a curing agent containing dicumyl peroxide; 1.5 to 2.5 parts by weight of an accelerator comprising sulfuramide and 3-bisbenzene; and 0.4 to 4.7 parts by weight of an antioxidant comprising trimethyl quinoline and phenyldiamine; and
The buffer case is provided with a magnet on a surface coupled to the center bar, wherein the magnet is at least one selected from rare earth elements including neodymium and boron, and 13.4 atomic% or more and 19.7 atomic% or less, boron (B) 4.3 atomic% or more 7.4 atomic % or less, manganese (Mn) 0.07 atomic % or more and 0.36 atomic % or less, as at least one selected from the group consisting of V, Nb, Mo, Ga, In, W, Hf, Bi, Ti, and Ta as an additive element It is a sintered magnet formed with the remainder containing iron (Fe) and cobalt (Co) as transition metals in excess of 0.1 and 4.6 atomic% or less,
The horizontal maintaining unit,
A coupling block provided on the bottom surface of the support plate, a first base bar one side is rotatably coupled to the coupling block; a first mounting bar having one side portion disposed inside the first base bar to move into the first base bar; a first horizontal roller provided on the first mounting bar and in rolling contact with the ground; a first stopper formed on one side of the first mounting bar; a first spring member having one side coupled to the inside of the first base bar and the other side coupled to the first mounting bar to guide the length of the first mounting bar to be adjusted; a second base bar having one side rotatably coupled to the coupling block; a second mounting bar with one side portion disposed inside the second base bar to move into the second base bar; a second horizontal roller provided on the second mounting bar and in rolling contact with the ground; a second spring member having one side coupled to the inside of the second base bar and the other side coupled to the second mounting bar to guide the length of the second mounting bar to be adjusted; a body connection spring connecting the first base bar and the second base bar to maintain a distance between the first base bar and the second base bar; and a second stopper formed on one side of the second mounting bar;
The support plate, the support pipe, the first lifting shaft, the second lifting shaft and the mounting plate, and the first base bar, the first mounting bar, the second base bar and the second mounting bar of the horizontal holding part are, respectively, Si: 0.22 wt% or less, Fe: 0.27 wt% or less, Cu: 0.06 wt% or less, Mg: 1.7-1.9 wt%, Zn:6.3-6.8 wt%, Ti: 0.07 wt% or less, Zr: 0.3-0.5 wt% or less and the balance Al It is made of aluminum and
The support plate, the support pipe, the first lifting shaft, the second lifting shaft and the mounting plate, and the first base bar, the first mounting bar, the second base bar, and the second mounting bar of the horizontal holding part each have a coating layer on the surface thereof. However, the coating layer is formed by spraying an alloy powder containing 26.7 to 50.3 parts by weight of a zirconium content, 38.3 to 69.7 parts by weight of a niobium content, and 1.3 to 2.3 parts by weight of a scandium or yttrium based on 100 parts by weight of an aluminum material,
The combined weight of the GPS receiver, the transceiver, the illuminance sensor and the horizontal sensor compared to the weight of the monitor disposed on the support plate is the same. A spatial imaging system that accurately draws features by maintaining the level of the surveyor.

Images