KR102333009B1 - Digital map production system for obtaining road coordinate information using gps measurement - Google Patents

Abstract

The present invention relates to a digital map producing system, and more particularly, relates to a digital map producing system which includes a collection device in which a GPS receiver and a camera are installed; and a digital map production device which receives coordinate values from the GPS receiver, corrects errors, and converts and records the same into digital map data, by which precise road coordinate values corrected through the standard correction function are input to a road digital map of a measurement target area, road coordinate information is obtained using GPS measurement which can input various road surrounding information together, and the digital map can be produced.

Description

A digital map production system that can acquire road coordinate information and produce a numerical map using GPS surveying {DIGITAL MAP PRODUCTION SYSTEM FOR OBTAINING ROAD COORDINATE INFORMATION USING GPS MEASUREMENT}

The present invention relates to a numerical map production system, and more particularly, to a numerical map production system capable of acquiring road coordinate information and producing a numerical map using GPS surveying.

In general, a numerical map refers to a map that expresses the geographical and topographical contents to be expressed numerically. have. In other words, the numerical map is applied to the illustrated image while expressing the geographical/topographical characteristics of a specific point as numerical information.

The numerical map construction process is completed through several processes as follows. First, a paper map is digitized or scanned to form a numerical map, and then various input errors are corrected.

Then, after transforming into an actual coordinate system to meet the user's purpose through coordinate transformation, a topological structure is established for understanding mutual location and correlation between spatial objects. Thereafter, the attribute data related to each figure data is input to the numerical map that has undergone the establishment of the topological structure.

At this time, the above-described attribute data includes various identifier information. As an example, a Unique Feature Identifier (UFID) is used as an identifier for a feature on the numerical map of the National Geographic Information Service. It refers to an identifier uniquely assigned to a feature as a single identifier indicating the location information, management agency, and other attribute information to be assigned. It is used as an identifier for linking with other geographic information or cross-referencing between features for retrieval and utilization.

Numerical maps produced in this way enable faster and more accurate map search than paper maps, and are superior in information management and usability to support various planning and decision-making more effectively.

Numerical map should be accurately applied to the illustrated image of the digitized geographical information of the point so that the user can easily obtain geographical and geographical information while looking at the map, and the illustrated image should also be accurately shown in accordance with the geographic information.

Such geographic information may be a GPS coordinate value or a coordinate value according to the administrative district unit of the cadastral map. do. Hereinafter, numerical information such as GPS coordinates, coordinate values of cadastral maps, and various data measured/collected at actual points will be collectively referred to as geographic information.

However, since the drawings generated by the conventional digital mapping system are input by reading aerial photos, satellite images, and images acquired through vehicles, it is difficult to ensure the accuracy of the features of the drawings, and, accordingly, There is also a problem that it is difficult to guarantee the accuracy of the attribute data.

For this reason, in order to ensure the accuracy of the numerical map, the numerical map makers are producing a more accurate numerical map through the process of the numerical map generating method described in FIG. 1 .

1 is a flow chart for explaining a conventional general numerical map production process.

As shown, the numerical map maker prints on paper a drawing created through digitizing or scanning such as a survey map, aerial photograph, satellite image, and roadside image obtained through an MMS vehicle (S10), and the corresponding area of the printed drawing to perform a field survey (S20).

Here, in the above-mentioned field survey, whether various artificial features and natural topography such as buildings, roads (paved, unpaved), railways, parks, rivers, mountains, rice fields, fields, etc. Check directly whether the size, direction, and shape of the artificial features and natural terrain located in the actual location are accurately indicated on the drawing, and if there are other parts, manually correct the drawing.

In addition, attribute data such as the name, name, and basic information (number of floors of a building, width of a road or river, etc.) of the corresponding artificial and natural features are manually written in the corresponding positions of the drawings.

In this way, when the representation of the artificial features and natural topography incorrectly described in the drawing and the attribute data of each artificial feature and natural topography is completed through the field survey, the change information and the change information and By displaying attribute data and correcting and supplementing the drawing and map input performance, in-place editing is performed to determine the geographical correlation between topography and features (S30).

Then, the topography and features edited through the in-place editing are configured in a geometric form, and the necessary objects are points, lines, planes, and network domain division models or a geometric model that combines them as defined by the National Geographic Information Service. Structural editing is performed by manually displaying and editing corresponding artificial features and natural topography based on morphology (S40). At this time, in the above-described structured editing, the attribute data displayed in the drawing is edited in a hidden (stored without being displayed on the screen) state.

When structured editing is completed in this way, a numerical map is produced and printed using a software program provided by the National Geographic Information Service, and the numerical map is produced/requested (S50). At this time, the software program is a program for changing the structured and edited drawing into a defined form, and it is usually used as it is with a known program provided by the National Geographic Information Service.

However, since the conventional numerical map production system is mainly performed only in two dimensions, there is a need for a topographic map including three-dimensional coordinate values (x, y, z) in relation to various purposes.

In addition, the need for a numerical map containing accurate information while rapidly reflecting the recent situation in which new roads are created within a short time and the existing roads are closed has been raised.

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

The present invention is to solve the problems of the prior art described above, and uses GPS surveying that can input precise road coordinates corrected through a standard correction function to a road numerical map of a measurement target area and input various road surrounding information together. The purpose of this is to provide a numerical map production system that can acquire road coordinate information and produce a numerical map.

In addition, the present invention records the coordinates of the road more precisely, reflects the changes in the road, and uses the GPS surveying that can include various road information to obtain road coordinate information and produce a numerical map. Another purpose is to provide a system.

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

The configuration of the present invention for achieving the above object is a collecting device in which a GPS receiver and a camera are installed; and a numerical map making device for receiving the coordinate values from the GPS receiver, correcting the error, and converting the data into numerical map data. It is characterized in that it includes.

In the numerical map production system capable of acquiring road coordinate information and producing a numerical map using GPS surveying according to an embodiment of the present invention, the numerical map production apparatus includes a numerical value in which road information of a target area is recorded and data can be recorded Numerical map DB where maps are stored; an input module for acquiring coordinate values, azimuth, vertical angle, lane information, and road surrounding information of a road within a target area from a GPS receiver and inputting it into a numerical map; a correction recording module to obtain a corrected coordinate value by correcting an error of the measured coordinate value; If the corrected coordinate value is on the existing road, delete the data of the existing numerical map and input the measured coordinate value. If the corrected coordinate value is on the new road, enter the measured coordinate value. a conversion recording module that converts and records the coordinate values into numerical map data by deleting them; and a storage module for classifying road coordinate values and road surrounding information according to the lanes of the road and storing them in a numerical map DB; It is preferable to include

In the numerical map production system capable of acquiring road coordinate information and producing a numerical map using GPS surveying according to an embodiment of the present invention, the collecting device includes: a height part coupled to an upper side of a movable vehicle; A buffer mechanism coupled to the upper part of the height; GPS receiver coupled to the upper portion of the buffer mechanism; Left and right moving part coupled to the other upper side of the vehicle; an air buffer coupled to the upper part of the left and right moving part; a rotating mechanism coupled to the upper portion of the air buffer; And a camera coupled to the upper portion of the rotating mechanism; It is preferable to include

In the numerical map production system capable of acquiring road coordinate information and producing a numerical map using GPS surveying according to an embodiment of the present invention, the height part includes: a cylindrical height case with an empty interior; a height rod that is accommodated in the height case so as to be slidable up and down and has a plurality of fixing grooves formed on the side thereof; And it is coupled to the upper end of the height case, the height and lowering part having a fixing rod that can enter into a plurality of fixing grooves; Including, the height and the fixed part, the fixed case coupled to the upper end of the height case; a fixed rod which is accommodated in the fixed case to be slidable from side to side and whose ends can enter the plurality of fixing grooves; a fixing spring accommodated in the fixing case and connecting between the right end of the fixing rod and the inner right end of the fixing case; and a fixed limiting unit mounted on the upper portion of the fixed case and capable of restricting the movement of the fixed rod; It includes, wherein the fixed limiting portion, a limiting plate coupled to the upper surface of the fixed case; a pair of limiting springs coupled to the top of the limiting plate; Ring-shaped limiting moving part connected to the lower end of the limiting spring; and a limiting rod coupled to the lower end of the limiting moving part; It is preferable to include

In a numerical map production system capable of acquiring road coordinate information and producing a numerical map using GPS surveying according to an embodiment of the present invention, the buffer mechanism includes: a buffer rod coupled to the lower end of the GPS receiver; The buffer case is formed in a cylindrical shape with an empty interior, the lower end of the buffer rod is accommodated, and is installed on the upper part of the height part; a buffer stopper coupled to the lower outer surface of the buffer rod in the form of a ring; a buffer connection part coupled to the lower portion of the buffer rod and connecting the buffer rod and the inner surface of the buffer case; And a buffer bent portion coupled between the outer surface of the buffer stopper and the inner surface of the buffer case to connect the buffer stopper and the buffer case to each other; Including, wherein the buffer bent portion, the first bent portion is coupled to the outer surface of the buffer stopper is formed in the shape of a figure; a second curved portion extending obliquely upward from the lower end of the first curved portion; a third curved part extending downward from the upper end of the second curved part and formed in the shape of a figure; a fourth curved portion extending obliquely upward from the lower end of the third curved portion; and a fifth curved part extending from the upper end of the fourth curved part to the lower part, formed in the shape of a figure, and coupled to the inner surface of the buffer case; It is preferable to include

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

In the numerical map production system capable of acquiring road coordinate information and producing a numerical map using GPS surveying according to an embodiment of the present invention, the rotating mechanism includes: a horizontal rotation unit coupled to a lower end of the camera to allow the camera to rotate; and a rotation control unit mounted on a lower end of the horizontal rotation unit; Including, wherein the horizontal rotation unit, the rotation case is coupled to the lower end of the camera is formed in a cylindrical shape with an open top and bottom; a rotating rod accommodated in the rotating case, the upper end being coupled to the lower end of the laser, and the lower end passing through the lower end of the rotating case and being accommodated in the rotating control unit; a rotation extension plate protruding from the side of the rotation rod; a rotation stopper formed on the upper end of the rotation case and in contact with the upper surface of the rotation extension plate; and a plurality of rotating balls disposed between the lower surface of the rotating extension plate and the inner lower surface of the rotating case; It includes, wherein the rotation control unit, a control case coupled to the lower end of the rotating case and receiving the lower end of the rotating rod; a control rod accommodated in the control case and movable in a direction perpendicular to the rotation rod; a stop portion coupled to one end of the control rod and capable of being inserted into any one of a plurality of stop grooves formed under the rotating rod; a control spring coupled between the stopper and the inner surface of the rotating case; a prevention portion coupled to the other end of the control rod and capable of being inserted into the prevention groove formed on the side of the control case; a control moving unit coupled to one side of the prevention unit and having a triangular cross section; a control moving case coupled to the side of the control case and inserted so that the control moving part can move left and right; and a control handle coupled to the upper part of the control moving case so as to be movable up and down, and the lower end of which is in contact with the upper surface of the control moving part. It is preferable to include

The present invention having the above configuration has the effect of more accurately recording the coordinate values of the road and producing a numerical map reflecting the changes of the road in real time.

In addition, according to the present invention, it is possible to classify road information and coordinate values by lanes so that they can be searched, and it is possible to produce a road numerical map that can recognize the expansion or contraction situation of the road at a glance.

1 is a flowchart for explaining a conventional general numerical map production process.
2 is a diagram for explaining the concept of real-time mobile positioning.
3 is a block diagram illustrating each configuration of a numerical map production system capable of acquiring road coordinate information and producing a numerical map using GPS surveying according to an embodiment of the present invention.
4 is a flowchart illustrating a method for producing a numerical map of a numerical map production system according to an embodiment of the present invention;
5 is a flowchart illustrating a method of obtaining a standard correction function to correct a measurement coordinate value of a numerical map production system according to an embodiment of the present invention;
6 is a view exemplarily showing a numerical map including a newly added road by measuring and recording the coordinates of a new road using a numerical map production system according to an embodiment of the present invention.
7 is a diagram illustrating a state in which deleted roads are distinguished and displayed using a numerical map production system according to an embodiment of the present invention.
8 is a view showing a front view of the collection device according to an embodiment of the present invention.
9 is a view showing a cross-sectional view of a height part according to an embodiment of the present invention.
Figure 10 is a view showing a cross-sectional view of the buffer mechanism according to an embodiment of the present invention.
11 is a perspective view showing the state of the left and right moving part according to an embodiment of the present invention.
12 is a view showing a cross-sectional view of a left and right moving part according to an embodiment of the present invention.
13 is a view showing a cross-sectional view of an air buffer according to an embodiment of the present invention.
14 is a view showing a cross-sectional view of a rotating mechanism according to an embodiment of the present invention.
15 is a view showing a state of a rotating rod according to an embodiment of the present invention.

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

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

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

2 is a diagram for explaining the concept of real-time mobile positioning, and FIG. 3 is each configuration of a numerical map production system capable of acquiring road coordinate information and producing a numerical map using GPS surveying according to an embodiment of the present invention is a block diagram showing

The real-time mobile positioning method is a survey method that can measure the distance, azimuth, and altitude difference between two points in real time by providing correction information using wireless communication for general GPS surveying. In terms of the GPS signal system, the carrier-based positioning method has many improvements in precision than the code-based positioning, but the carrier-based single survey also has a disadvantage in that it has lower precision than the post-processed relative surveying technique.

RTK, a high-precision mobile surveying technique, was developed for this purpose. The basic concept is to use the carrier error correction value of the reference point that has secured a precise position to enable the user to obtain observation values that maintain precision of several centimeters in real time. .

The basic concept of RTK is that the data transmitted from the reference station is carrier wave reception data for error correction. Since it is relatively larger than DGPS, a more stable and rapid information delivery communication system is required. Currently, it is mainly used in various fields where GPS is applied, and all application fields such as GSIS, surveying, and navigation are being put to practical use by focusing on the use of RTK technique.

Maps have been used as a traditional means for humans to obtain information about the land, and the map was a data source that provided information necessary for each field as information about the land, such as important topography and facilities, was recorded. However, the map is difficult to contain frequently changing contents, which limits its use, and suggests an effective use method to collect, process, and analyze data using a computer. GIS, a processing technology, has been developed.

Maps are the most basic data for developing such GIS. These maps include topographic maps, geological maps, soil maps, cadastral maps, and maps showing underground facilities such as water and sewage, underground telephone wiring, and underground gas pipelines.

The present invention obtains an error correction value through the coordinates of the reference point and the GPS coordinates received from the reference point, and uses the error correction value for the coordinate value of the measurement road obtained by the user through the GPS. will be obtainable with

In the production of a numerical map for carrying out the present invention, the coordinate values of the reference point and the standard correction function are obtained, the coordinates of the road and road information are obtained in real time from the GPS receiver, and the coordinate values of the survey point are corrected with the standard correction function. Use the value to include more accurate road information.

As shown, the numerical map production system according to the present invention receives the coordinate values from the collecting device 100 and the GPS receiver 110 in which the GPS receiver 110 and the camera 120 are installed, and corrects the error to map the numerical map. and a numerical mapping device 200 for converting and recording data.

The numerical map production apparatus 200 includes a numerical map DB 210 in which road information of a target area is recorded and a numerical map capable of recording data is stored, and a coordinate value and an azimuth of a road in the target area from the GPS receiver 110 . , an input module 220 for obtaining vertical angle, lane information and road surrounding information and inputting it into a numerical map, a correction recording module 230 for obtaining a corrected coordinate value by correcting the error of the measured coordinate value, the corrected coordinate value is If it is on the road of , delete the data of the existing numerical map and input the measured coordinate value. If the corrected coordinate value is on a new road, enter the measured coordinate value. It includes a conversion recording module 240 for converting and recording numerical map data, and a storage module 250 for classifying road coordinate values and road surrounding information according to lanes of the road and storing it in the numerical map DB 210 .

The collection device 100, the height portion 500 coupled to the upper side of the movable vehicle A, the buffer mechanism 600 coupled to the upper portion of the height portion 500, the buffer mechanism 600 on the upper portion The GPS receiver 110 to be coupled, the left and right movement unit 400 coupled to the other upper side of the vehicle A, the air buffer unit 300 coupled to the upper part of the left and right movement unit 400, and the air buffer unit 300 on the upper part It includes a camera 120 coupled to the upper portion of the rotating mechanism 700 and the rotating mechanism 700 is coupled.

A detailed configuration of the collection device 100 will be described in detail below.

4 is a flowchart illustrating a method for producing a numerical map of a numerical map production system according to an embodiment of the present invention.

In order to produce a numerical map, a numerical map DB 210 is prepared in which road information of the target area is recorded and a numerical map capable of data recording is stored, and the GPS coordinate values (X _i , Y _i , Z _{i of the measurement target road) are prepared.} : i=1,2,......,ℓ) is obtained (S201).

In addition, the correction recording module 230 obtains a corrected coordinate value corrected for an error in the road coordinate value (S202). When acquiring the coordinates of the road, the input module 220 acquires the azimuth, the vertical angle, the lane information, and the road surrounding information and additionally inputs it into the numerical map.

The conversion recording module 240 deletes the data of the existing numerical map if the measured coordinate value is on the existing road and inputs the measured coordinate value, and inputs the measured coordinate value if the measured coordinate value is on the new road. In addition, the conversion recording module 240 converts and records the coordinate values of the roads that are missing from the existing numerical map by deleting or marking them for deletion into numerical map data (S203, S204).

Next, the storage module 250 classifies the coordinate values of the road and the information around the road according to the lanes of the road (ex: 1-lane road, 2-lane road, 3-lane road, 4-lane road), and the numerical map DB (210) ) is stored in (S205). By classifying and storing according to lanes, it is possible to provide a road numerical map that can be searched for by lane.

In order to record the measured coordinate values more precisely, in the present invention, a numerical map is produced by correcting the error and inputting the corrected coordinate values.

That is, the cause of the error included in the GPS measurement coordinates can be largely divided into an error caused by environmental factors and an error caused by a factor of the GPS itself. The environmental factors that affect the error are the error of the ionosphere, the error caused by the refraction of the convective layer, and the time error of the artificial satellite. However, if coordinates are obtained using GPS in a short time in a small area, the environmental factors affecting the obtained coordinates can be neglected because time and space are limited.

Correction recording module 230 according to the present invention measured coordinate values of each building (X _i , Y _i , Z _i ), a standard correction function is obtained and a correction coordinate value is obtained by reflecting it.

5 is a flowchart illustrating a method of obtaining a standard correction function to correct a measurement coordinate value of a digital map production system according to an embodiment of the present invention.

_{Obtain the coordinate values ( Xb n} , Ybn , Zb _n , where n=1,2,3,........,m) of the position of the nth reference point in the target area to produce a numerical map (S301) , to move the reference point coordinate GPS (Xa _n, Ya _n, Za _n) the acquired and then, n-coordinate value of the secondary reference point (Xb _n, Yb _n, Zb _n) and coordinates obtained from the GPS (Xa _n, Ya _n , Za _n ), an nth-order correction function (Xe _n =Xa _n -Xb _n , Ye _n =Ya _n -Yb _n , Ze _n =Za _n -Zb _n ) is obtained (S302).

The step of obtaining the nth-order correction function is repeated m times (S303).

The standard correction function (Xe, Ye, Ze) of the nth correction function repeated m times is obtained using the following formula (S304):

Correct the measurement coordinate values of each building with the standard correction function above to obtain corrected coordinate values (Xe _i , Ye _i , Ze _i ) (where Xe _i =X _i -Xe, Ye _i =Y _i -Ye, Ze _i =Z _i -Ze), and save it to make a numerical map.

6 is a view exemplarily showing a numerical map including a road newly added by measuring and recording the coordinates of a new road using a numerical map production system according to an embodiment of the present invention, and FIG. 7 is a diagram of the present invention. It is a diagram exemplarily showing a state in which deleted roads are distinguished and displayed using a numerical map production system according to an embodiment of the present invention.

In FIG. 6 , a portion indicated by a thick line indicates the vehicle's traveling path, and ① and ② indicate that it is not stored in the existing numerical map. In this case, the added new road may be displayed in different forms to differentiate it from the existing road.

6 is a diagram illustrating that the added road is displayed on the numerical map as map data for a new road is added to the numerical map.

As for the method of indicating that it is a new road, the thickness of the line on the map may be different or the color may be displayed differently, and text may be input to indicate that the road is a new road.

A road shown in the form of a dotted line in FIG. 7 indicates a deleted road, and it is preferable to process it so that it is not displayed on the numerical map after deletion. However, in order to notify the fact that the deletion has been made, the deleted road may be displayed on the numerical map by displaying a dotted line or using a different color. The road of ③→④ indicated by dotted lines shows that the entire range of the road has been deleted, and the road of ⑥→⑦ shows that only a partial range of the road has been deleted.

When recording the numerical map data in the present invention, the new road, the deleted road, and the road without change are recorded separately, and the road under construction is marked for each road and recorded on the numerical map. to make the

In addition, the road whose expansion construction is in progress is marked with an arrow pointing outward (← →), and if the road is being reduced due to changes in surrounding construction or other conditions, it is indicated with an arrow pointing inward (→ ←) In this way, a numerical map is produced that can grasp the condition of the road at a glance.

8 is a view showing a front view of the collecting device according to an embodiment of the present invention, Figure 9 is a view showing a cross-sectional view of the height part according to an embodiment of the present invention.

As shown, the collection device 100 includes a height part 500 coupled to an upper side of the movable vehicle A, a buffer mechanism 600 coupled to the upper part of the height part 500, a buffer mechanism ( The GPS receiver 110 coupled to the upper part of the 600), the left and right moving part 400 coupled to the other upper side of the vehicle A, the air buffer unit 300 coupled to the upper part of the left and right moving part 400, the air buffer unit ( It includes a rotation mechanism 700 coupled to the upper portion of the 300 and a camera 120 coupled to the upper portion of the rotation mechanism 700 .

The height part 500 is accommodated so as to be slidable up and down in the cylindrical height case 510 and the height case 510 with an empty inside, and the height rod 520 in which a plurality of fixing grooves 521 are formed on the side surface. And it is coupled to the upper end of the height case 510 and comprises a height fixing part 530 having a fixing rod 532 that can enter into a plurality of fixing grooves 521 .

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

The height rod 520 is coupled to the height case 510 to be movable up and down, and the height of the GPS receiver 110 coupled thereto may be varied according to the vertical movement of the height rod 520 .

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

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

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

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

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

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

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

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

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

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

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

Accordingly, the height part 500 does not move up and down anymore and the height is fixed, and the height of the GPS receiver 110 coupled to the upper part of the height part 500 is also determined and fixed.

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

As shown, the buffer mechanism 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, and a height part ( 500) is mounted on top.

The buffer rod 610 is coupled to the lower end of the GPS receiver 110, and a buffer coupling part 611 in the form of a disk and a buffer cylinder part 612 in a cylindrical shape extending in the lower center of the buffer coupling part 611. is done

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. This buffer case 620 is fastened to the upper portion of the height portion (500).

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 height part 500 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 are made of a rubber material.

The buffer connection portion 640 extends to the side of the buffer upper and lower portion 641 and the buffer upper and lower portion 641 connecting the lower end of the buffer rod 610 and the inner lower surface of the buffer case 620 in the up and down direction, the buffer case 620 ) includes a buffer left and right portion 642 that connects left and right between the inner side surfaces. The buffer connection part 640 has 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 bending part 650 is coupled to the gap (G) to connect the buffer stopper 630 and the buffer case 620 with each other. .

Specifically, the buffer bending 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 part 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 obliquely upward from the lower end of the first curved portion 651 . The third curved portion 653 extends downward from the upper end of the second curved portion 652 and is formed in a single shape. The fourth curved portion 654 extends obliquely upward from the lower end of the third curved portion 653 . The fifth curved part 655 extends downward from the upper end of the fourth curved part 654 , is formed in a shape of a figure, and is coupled to the inner surface of the buffer case 620 .

At this time, the vertical height of the first curved part 651 is formed to be relatively higher than the vertical height of the third curved part 653 , and the vertical height of the third curved part 653 is relatively higher than the vertical height of the fifth curved part 655 . is formed That is, the overall height of the buffer curved portion 650 gradually decreases from the first curved portion 651 toward the fifth curved portion 655 in the direction.

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

As such, the present invention can obtain the effect of substantially reducing the gap by using the buffer bending part 650 while maintaining the physical gap (G) between the buffer stopper 630 and the buffer case 620 as it is, the buffer While reducing noise due to frequent contact of the stopper 630 , there is an advantageous characteristic for controlling large displacement vibration.

11 is a perspective view illustrating a state of the left and right moving part according to an embodiment of the present invention, and FIG. 12 is a view showing a cross-sectional view of the left and right moving part according to an embodiment of the present invention.

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

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

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

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

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

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

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

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

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

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

As the central metal part 440 moves to the left or right in the left and right case 410 , the upper and lower rod part 450 and the camera 120 coupled thereto may also move to the left or right, and thus a wider As the range is taken, the degree of overlap of the images is also higher, and there is an effect of improving the accuracy.

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

The air buffer unit 300 includes an air housing 310 , an air flow unit 320 , a pair of air opening/closing units 340 , an air ring 330 , and an upper housing 350 . The air buffer unit 300 is coupled to the upper portion of the left and right moving unit 400 and functions to alleviate vibration or shock applied from the vehicle.

A filling space 311 is formed in the air housing 310 so that air can be filled therein. The air housing 310 is made of a rubber material having elasticity, and is coupled to the upper portion of the left and right moving part 400 .

The air flow unit 320 is coupled to the upper portion of the air housing 310 , and is made of a rubber material having elasticity like the air housing 310 . In the center of the air flow unit 320, an air hole 321 is formed to penetrate vertically. Air may flow into the upper portion of the air flow unit 320 and the filling space 311 of the air housing 310 through the air hole 321 .

The pair of air opening/closing units 340 are coupled to the upper end of the air hole 321 . The air opening/closing unit 340 is made of a rubber material having elasticity, and is coupled to the upper surface of the air flow unit 320 in a cantilever shape.

That is, the air opening/closing unit 340 is rotatable up and down based on a portion coupled to the upper surface of the air flow unit 320 . When the air opening/closing unit 340 moves downward, the upper end of the air hole 321 is closed, and when the air opening/closing unit 340 moves upward, the upper end of the air hole 321 is opened.

In the center of the lower surface of the air opening/closing unit 340 , a contact support end 341 is formed to protrude downward so as to be in contact with the inner wall of the upper end of the air hole 321 to support the air opening/closing unit 340 . The air opening/closing unit 340 may firmly close the upper end of the air hole 321 without sagging downward by the contact support end 341 .

The air ring 330 is mounted inside the air flow unit 320 and is coupled to surround the air hole 321 . The air ring 330 is made of a metal material having a predetermined weight, and is formed in a ring shape. The air ring 330 functions to absorb the vibration transmitted from the air housing 310 .

The upper housing 350 is coupled to the upper portion of the air flow unit 320 . A plurality of vent holes 351 are formed on the side surface of the upper housing 350 , and air may flow through these vent holes 351 .

The air housing 310 vibrates by vibration or shock generated from the vehicle A, and the air ring 330 also vibrates by the transmitted vibration. Accordingly, the air flow unit 320 is vibrated to open the air opening/closing unit 340, and as represented by a dotted line in the drawing, the vent hole 351, the air hole 321 and the filling space 311 of the upper housing 350 are shown. ) through which air flows.

As described above, the present invention has an advantage in that the damping force can be actively changed because the air in the filling space 311 can flow through the air hole 321 and the air opening and closing part 340 .

For example, if the vibration applied from the vehicle is of a high frequency, the vibration of the air housing 310 increases and the vibration of the air ring 330 also increases. is opened

When the air opening/closing unit 340 is opened, air flows through the vent 351 , the air hole 321 and the filling space 311 of the upper housing 350 , the sensitivity of the target frequency is increased, and the vibration is attenuated. .

When the vibration applied from the vehicle is of a low frequency, the vibration of the air housing 310 is reduced and the vibration of the air ring 330 is also reduced, and accordingly, the vibration of the air flow part 320 is also reduced so that the air opening and closing part 340 is closed. is closed

When the air opening/closing unit 340 is closed, the air inside the filling space 311 does not flow, and the sensitivity of the anti-resonance band frequency is increased to attenuate the vibration.

14 is a view showing a cross-sectional view of a rotating mechanism according to an embodiment of the present invention, and FIG. 15 is a view showing a state of a rotating rod according to an embodiment of the present invention.

As shown, the rotation mechanism 700 is coupled to the lower end of the camera 120 to allow the camera 120 to rotate, a horizontal rotation unit 710 and a rotation control unit mounted on the lower end of the horizontal rotation unit 710 . 720 is included.

The horizontal rotating unit 710 is coupled to the lower end of the camera 120 and is accommodated in a rotating case 711 having an open top and an empty cylindrical inside, the rotating case 711, and having an upper end of the camera ( The rotation rod 712 coupled to the lower end of the 120 and the lower end penetrating the lower end of the rotation case 711 and accommodated in the rotation control unit 720, the rotation extension plate 713 protruding from the side of the rotation rod 712 , formed on the upper end of the rotation case 711 and between the lower surface of the rotation stopper 711a and the rotation extension plate 713 in contact with the upper surface of the rotation extension plate 713 and the inner lower surface of the rotation case 711 It includes a plurality of rotating balls (714) disposed on.

The rotation rod 712 is capable of horizontal rotation relative to the rotation case 711 and other components, and thus the camera 120 coupled to the upper end of the rotation rod 712 can also be horizontally rotated.

The rotation rod 712 is formed in a cylindrical shape as a whole, and a rotation extension plate 713 protrudes and extends outwardly in a ring shape on the side of the rotation rod 712 . The rotation extension plate 713 is in contact with the rotation stopper 711a.

The plurality of rotating balls 714 are accommodated in the rotating case 711, and when the rotating rod 712 rotates horizontally, the frictional force between the rotating case 711 and the rotating rod 712 is reduced to reduce the rotating rod 712. ) to rotate more smoothly.

As described above, in the present invention, since the direction of the camera 120 can be changed while the camera 120 is coupled, the user's convenience is greatly improved.

The rotation control unit 720 is mounted on the lower end of the horizontal rotation unit 710, the control case 721, the control rod 722, the stopper 723, the control spring 724, the prevention unit 725, the control moving unit 726 , a control transfer case 727 and a control handle 728 are included.

The control case 721 is formed in a cylindrical shape with an empty interior, and is coupled to the lower end of the rotation case 711 . A hole is formed at the upper end of the control case 721 to communicate with the rotating case 711 , and the lower end of the rotating rod 712 may be accommodated in the control case 721 through this hole.

The control rod 722 is accommodated in the J case, and is movable in a direction perpendicular to the rotation rod 712 (ie, left and right). A stop portion 723 is coupled to the right end of the control rod 722 , and a prevention portion 725 is coupled to the left end of the control rod 722 .

The stop 723 is formed in a flat plate shape, and is movable left and right according to the left and right movement of the control rod 722 . A plurality of stop grooves 712a are radially formed in the lower portion of the rotary rod 712 , and the stopper 723 may be inserted into any one of these stop grooves 712a.

When the control rod 722 is moved to the left, the stop 723 is inserted and accommodated in the stop groove 712a of the rotary rod 712, and when the control rod 722 is moved to the right, the stop 723 is separated from the stop groove (712a) of the rotating rod (712).

When the stopper 723 is inserted into the stop groove 712a of the rotary rod 712 , the rotary rod 712 is blocked by the stopper 723 so that it cannot rotate any more and is fixed in place. When the stopper 723 is separated from the stop groove 712a of the rotary rod 712, the rotary rod 712 is horizontally rotatable again.

As shown, a plurality of stop projections 712b may protrude from the stop groove 712a of the rotary rod 712 . The plurality of stopping protrusions 712b are made of an elastic material such as rubber, and are arranged at predetermined intervals along the longitudinal direction of the stopping grooves 712a.

In addition, it is preferable that the plurality of stopping protrusions 712b are arranged in a zigzag form so that a predetermined height difference between the facing stopping protrusions 712b can be set. That is, the plurality of stop protrusions 712b are arranged to be crossed with each other, like interlaced hands.

A plurality of stop protrusions 712b is not easily separated from the stop portion 723 when the stopper 723 is inserted into the stop groove 712a of the rotation rod 712 from the stop groove 712a and can be maintained therein. functions that enable it.

The control spring 724 is coupled between the stop 723 and the inner surface of the rotating case 711 . The control spring 724 provides an elastic force to push the control rod 722 and the stopper 723 to the left.

The prevention part 725 may be inserted into the prevention groove 721a formed on the side of the control case 721 . When the control rod 722 is moved to the left, the prevention part 725 is inserted into the prevention groove 721a, and when the control rod 722 is moved to the right, the prevention part 725 is separated from the prevention groove 721a. do.

The outer surface of the prevention part 725 and the inner surface of the prevention groove 721a are formed in a sawtooth shape. When the prevention part 725 is inserted into the prevention groove 721a, the control rod 722 and the stop part 723 cannot rotate the shaft and move up and down, and thus the fixed state of the rotation rod 712 is fixed. You can keep it more robust.

The control moving part 726 is coupled to the left end of the prevention part 725 and has a triangular cross section. The control moving case 727 is coupled to the side of the control case 721 and the control moving part 726 is inserted so as to be movable left and right. In other words, the control moving unit 726 may be accommodated in the control moving case 727 and move left and right.

The control handle 728 is coupled to the upper portion of the control transfer case 727 . The control handle 728 is mounted to be movable up and down, and the lower end of the control handle 728 is in contact with the upper surface of the control moving part 726 .

When the user holds the control handle 728 and applies a downward force, the lower end of the control handle 728 comes into contact with the upper surface of the control moving unit 726 and pushes the control moving unit 726. Accordingly, the control moving unit 726 is shifted to the right.

As the control moving part 726 is moved to the right, the prevention part 725 is separated from the prevention groove 721a, and the control rod 722 overcomes the elastic force of the control spring 724 and is moved to the right.

As the control rod 722 is moved to the right, the stopping part 723 is also separated from the stopping groove 712a, and the rotating rod 712 and the camera 120 coupled thereto are of the stopping part 723. It can be freely rotated horizontally without restrictions.

When the horizontal rotation of the camera 120 in a direction desired by the user is finished, the user releases the control handle 728 , and the control rod 722 moves to the left according to the elastic force of the control spring 724 .

When the control rod 722 moves to the left, the stop 723 is inserted into the stop groove 712a to limit horizontal rotation of the rotary rod 712 . At this time, the prevention part 725 is inserted into the prevention groove 721a, and the control moving part 726 moves to the left to lift the control handle 728 upward.

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

100: collection device 110: GPS receiver 120: camera
200: numerical map making device 210: numerical map DB 220: input module
230: correction recording module 240: conversion recording module 250: storage module
300: air buffer 310: air housing 311: filling space
320: air flow part 321: air hole 330: air ring
340: air opening and closing part 341: contact support end 350: upper housing
351: ventilation hole 400: left and right moving part 410: left and right case
411: moving hole 420: sliding part 421: sliding hole
422: recognition hole 423: recognition sensing unit 430: left and right rod unit
431: recognition part 440: central metal part 450: upper and lower rod part
460: center magnet 461: left and right magnets 470: moving rail
480: rail moving part 500: height part 510: height case
511: height spring 520: height rod 521: fixed groove
530: height fixed part 531: fixed case 531a: limiting hole
532: fixed rod 532a: rod groove 533: fixed spring
534: fixed limiting part 535: limiting plate 536: limiting spring
537: limit moving part 538: limit rod 600: buffer mechanism
610: buffer rod 611: buffer fastening part 612: buffer cylinder part
620: buffer case 630: buffer stopper 640: buffer connection part
641: buffer upper and lower parts 642: buffer left and right parts 650: buffer bent part
651: first curved part 652: second curved part 653: third curved part
654: fourth bent part 655: fifth bent part 700: rotating mechanism
710: horizontal rotation part 711: rotation case 711a: rotation stopping part
712: rotating rod 712a: stopping groove 712b: stopping protrusion
713: rotation extension plate 714: rotation ball 720: rotation control unit
721: control case 721a: prevention groove 722: control rod
723: stop part 724: control spring 725: prevention part
726: control moving unit 727: control moving case 728: control handle

Claims (1)

a collecting device in which a GPS receiver and a camera are installed; and a numerical map making device for receiving the coordinate values from the GPS receiver, correcting the error, and converting the data into numerical map data. including,
The digital map making device is
a numerical map DB in which road information of the target area is recorded and a numerical map capable of recording data is stored; an input module for acquiring coordinate values, azimuth, vertical angle, lane information, and road surrounding information of a road within a target area from a GPS receiver and inputting it into a numerical map; a correction recording module to obtain a corrected coordinate value by correcting an error of the measured coordinate value; If the corrected coordinate value is on the existing road, delete the data of the existing numerical map and input the measured coordinate value. If the corrected coordinate value is on the new road, enter the measured coordinate value. a conversion recording module that converts and records the coordinate values into numerical map data by deleting them; and a storage module for classifying road coordinate values and road surrounding information according to the lanes of the road and storing them in a numerical map DB; including,
The collection device is
a height part coupled to an upper side of the movable vehicle; A buffer mechanism coupled to the upper part of the height; GPS receiver coupled to the upper portion of the buffer mechanism; Left and right moving part coupled to the other upper side of the vehicle; an air buffer coupled to the upper part of the left and right moving part; a rotating mechanism coupled to the upper portion of the air buffer; And a camera coupled to the upper portion of the rotating mechanism; includes,
The height part,
Cylindrical height case with an empty interior; a height rod that is accommodated in the height case so as to be slidable up and down and has a plurality of fixing grooves formed on the side thereof; And it is coupled to the upper end of the height case, the height and lowering part having a fixing rod that can enter into a plurality of fixing grooves; including,
The height and the government,
Fixed case coupled to the upper part of the height case; a fixed rod which is accommodated in the fixed case to be slidable from side to side and whose ends can enter the plurality of fixing grooves; a fixing spring accommodated in the fixing case and connecting between the right end of the fixing rod and the inner right end of the fixing case; and a fixed limiting unit mounted on the upper portion of the fixed case and capable of restricting the movement of the fixed rod; includes,
The fixing limiting part,
a limiting plate coupled to the upper surface of the fixed case; a pair of limiting springs coupled to the top of the limiting plate; Ring-shaped limiting moving part connected to the lower end of the limiting spring; and a limiting rod coupled to the lower end of the limiting moving part; including,
The buffer mechanism is
A buffer rod coupled to the bottom of the GPS receiver; The buffer case is formed in a cylindrical shape with an empty interior, the lower end of the buffer rod is accommodated, and is installed on the upper part of the height part; a buffer stopper coupled to the lower outer surface of the buffer rod in the form of a ring; a buffer connection part coupled to the lower portion of the buffer rod and connecting the buffer rod and the inner surface of the buffer case; and a buffer bending part coupled between the outer surface of the buffer stopper and the inner surface of the buffer case to connect the buffer stopper and the buffer case to each other. including,
The buffer bending part,
A first curved portion coupled to the outer surface of the buffer stopper and formed in a single shape; a second curved portion extending obliquely upward from the lower end of the first curved portion; a third curved part extending downward from the upper end of the second curved part and formed in the shape of a figure; a fourth curved portion extending obliquely upward from the lower end of the third curved portion; and a fifth curved part extending from the upper end of the fourth curved part to the lower part, formed in the shape of a figure, and coupled to the inner surface of the buffer case; includes,
The left and right moving part,
Left and right cases coupled to the upper portion of the vehicle and having movable holes formed on the upper surface in the longitudinal direction; a pair of sliding parts coupled to both inner sides of the left and right cases and having sliding holes formed along the longitudinal direction; a pair of left and right rods each having one end slidably inserted into the pair of sliding parts; a central metal part of a metal material coupled to the center of a pair of left and right rod parts; an upper and lower rod part extending to the upper part of the central metal part and exposed to the outside through a moving hole; a central magnet coupled to the center of the inner lower part of the left and right cases; A pair of left and right magnets spaced apart from each other on the basis of the central magnet and exhibiting magnetism; a pair of moving rails coupled to the upper surfaces of the left and right cases and coupled to both sides in the front and rear directions based on the moving holes along the longitudinal direction; and a rail moving unit coupled to the side of the upper and lower rods and accommodated in a pair of moving rails and capable of sliding along the longitudinal direction; includes,
The central magnet has a relatively larger size than a pair of left and right magnets and has relatively large magnetism, and the central metal part is usually located at the center by the magnetic force applied by the central magnet, and as the left and right cases are inclined to one side, The central metal part also moves to one side by the weight of the central metal part and the magnetic force of the left and right magnets, and when the left and right cases return to the horizontal again, the central metal part returns to the center by the magnetic force of the central magnet, which has relatively large magnetism,
The rotating mechanism is
a horizontal rotation unit coupled to the lower end of the camera to allow the camera to rotate; and a rotation control unit mounted on a lower end of the horizontal rotation unit; including,
The horizontal rotation unit,
a rotating case coupled to the bottom of the camera and formed in a cylindrical shape with an open top and an open bottom; a rotating rod accommodated in the rotating case, the upper end being coupled to the lower end of the laser, and the lower end passing through the lower end of the rotating case and being accommodated in the rotating control unit; a rotation extension plate protruding from the side of the rotation rod; a rotation stopper formed on the upper end of the rotation case and in contact with the upper surface of the rotation extension plate; and a plurality of rotating balls disposed between the lower surface of the rotating extension plate and the inner lower surface of the rotating case; includes,
The rotation control unit,
a control case coupled to the lower end of the rotating case and accommodating the lower end of the rotating rod; a control rod accommodated in the control case and movable in a direction perpendicular to the rotation rod; a stop portion coupled to one end of the control rod and capable of being inserted into any one of a plurality of stop grooves formed under the rotating rod; a control spring coupled between the stopper and the inner surface of the rotating case; a prevention part coupled to the other end of the control rod and capable of being inserted into the prevention groove formed on the side of the control case; a control moving unit coupled to one side of the prevention unit and having a triangular cross section; a control moving case coupled to the side of the control case and inserted so that the control moving part can move left and right; and a control handle coupled to the upper part of the control moving case so as to be movable up and down, and the lower end of which is in contact with the upper surface of the control moving part. A numerical map production system capable of acquiring road coordinate information and producing a numerical map using GPS surveying, characterized in that it comprises a.

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