KR101235310B1 - Total station for geodetic surveying using measurement level of ground - Google Patents

Abstract

PURPOSE: A total station for a geodetic survey for leveling is provided to minimize changes in a horizontal state of a total station caused by a wobble or wind generated when an operator generates the total station as a fixing bar forcibly maintains a horizontal state of the total station when the horizontal state of the total station is fixed. CONSTITUTION: A total station for a geodetic survey for leveling comprises a GPS receiving device, a surveying device, and a receiving box. The receiving box includes a tripod composed of three first legs, three second legs, and three connection nuts, a pressing member, and a bubble setting member.

Description

TOTAL STATION FOR GEODETIC SURVEYING USING MEASUREMENT LEVEL OF GROUND

The present invention relates to a total station for geodetic survey for leveling, more specifically, the operator can easily fix the horizontal level of the total station regardless of the curvature of the ground, the horizontal state of the total station is fixed once When the fixed bar is forced to maintain the horizontal level of the total station, the total station for the geodetic survey for level surveying can minimize the horizontal disturbance caused by fluctuations or wind power that may occur during the operation of the total station. It is about.

In general, direct surveying in the field is inevitable for accurate leveling, geodetic and position confirmation of the terrain, and the total station is mainly used for such surveying.

The total station measures the level and distance of the survey target based on the point where the total station is located while photographing and measuring the survey target.

Therefore, in order to perform accurate photographing and measurement, it is necessary to minimize the shaking of the total station by stable posture and external impact.

To this end, in the prior art, the operator checked the bending state of the ground on which the total station is to be placed, and proceeded to manually adjust the length of the triport supporting the total station.

Furthermore, for precise horizontal alignment of the total station, conventionally known and common horizontal bubble alignment means could be further utilized.

Here, the bubble alignment means is widely used as a criterion for leveling the device by applying the principle that the bubble always faces upward, and is widely used in a device requiring horizontal alignment.

However, the leveling operation of the total station was a cumbersome process that must be repeatedly performed every time the position of the total station is adjusted. Since the work is performed by hand, there is a limit to the exact leveling, and the error rate for the survey result is also quite small. There was a problem.

Patent Publication No. 2012-0057915 (2012.06.07.) "Total station capable of precise level measurement of the indicator" has been disclosed as a prior art to solve this problem.

According to the related art, the inclination sensor is fixed to the upper plate directly and integrally fixed to the upper plate, so when the inclination due to lack of fluidity causes the return time due to the adjustment bar to be delayed, causing a measurement error or a poor measurement, so the inclination sensor and the upper plate are separated. Therefore, the necessity of having fluidity with each other has emerged.

The present invention has been made in view of the above-mentioned problems in the prior art, and has been created to solve this problem, and geodetic for leveling so that the horizontal position of the total station can be easily and precisely fixed when the total station is installed for topography Its main purpose is to provide a total station for surveying.

The present invention is a means for achieving the above object, a GPS receiver 11 for receiving GPS information while communicating with a GPS satellite (G), a surveying device 12 having a ranging and angle measuring function between the current position and a remote point, A base 1311; Three first legs 1312 formed on the outer surface of the thread 1312a and rotatably fixed to the base 1311; Three second legs (1313) formed on the outer surface of the thread (1312a) and the thread (1313a) in the opposite direction; A tri-tree consisting of three connecting nuts 1314 formed with threads 1314a engaged with the threads 1312a and 1313a at both ends thereof so as to connect the first legs 1312 and the second legs 1313 in a row. Port 131: a tank 1321 containing a fluid; Pressurizing means 1322 for pressurizing the internal pressure of the tank 1321; Bubble alignment means (1323) for checking the horizontal; Receiving box 132 mounted and fixed to the tri-port 131: a rectangular lower plate (1331) built in the housing 132; Four adjustment bars 1333 having a hydraulic cylinder structure in which the lower end is rotatably fixed to the corners of the lower plate 1331 and communicates with the tank 1321 and the valve V so as to be opened and closed respectively; An upper plate 1332 on which an upper end of the adjustment bar 1333 is rotatably fixed and constructed to face the lower plate 1331 up and down; The cylinder 41 having the rails 41a formed on the inner surface along the longitudinal direction, and the guide grooves 42a movably engaged with the rails 41a are formed on the outer surface, and threads 42b are formed on the inner surface to form the cylinder ( A motor 43 for rotating a tubular piston 42 movably inserted into 41 and a rotating shaft 43a fixed to the piston 42 and penetrating the hollow of the cylinder 41 and the piston 42. And, while moving along the longitudinal direction of the penetrating rotary shaft 43a rotates with the rotation of the rotary shaft 43a, the outer surface is formed with a thread 44b for engaging the thread 42b of the piston 42 and the piston ( The outer diameter is relatively larger than the inner diameter of the piston 42 so that the 42 is expanded, and the cylinder 41 and the motor 43 are respectively installed and rotated on the lower plate 1331 and the upper plate 1332, respectively. Three fixing bars 1334 made up of pivot balls 45a and 45b that can be engaged with each other; It is divided into four zones (a1, b1, c1, d1) so as to face the four adjustment bars (1333; a, b, c, d), and independently detects the light. and b1, c1, and d1) to form a boundary line L having an independent light sensing function, and form a center point CP having an independent light sensing function at the center thereof, and a sensing panel 1341 installed at the top plate 1332. ; A tilt sensor 134 comprising: a laser gun 1342 rotatably installed at the hemispherical sphere center and irradiating light to the sensing panel 1341, including a detector 13 and a surveying device 12 It controls the operation of the transmitter 15 and the GPS receiver 11, the surveying device 12 and the transmitter 15 for transmitting the collected survey data, and operates the laser gun 1342 of the detector 13, the sensing panel A controller 14 for receiving the light reception information of the 1341 and controlling the operation of the pressurizing means 1322 and the valve V and the motor 43;

A pair of first direction fixed cylinders CY1 fixed to the bottom surface of the tilt sensor 134 and a pair of second direction fixed cylinders CY2 fixed in a direction orthogonal to the first direction fixed cylinder CY1. ), Pistons P installed in both ends of the first direction fixed cylinder CY1 and the second direction fixed cylinder CY2, and the first and second cylinder rods CR1 and CR2 connected to and fixed to the piston P. The center chamber CCH formed at the center of the length of the first direction fixed cylinder CY1 and the second direction fixed cylinder CY2 and the center chamber CCH are formed at both sides, and the piston P is A built-in side chamber (SCH), the center chamber (CCH) and the side chamber (SCH) in communication with each other further comprises a communication path (OR) for performing an orifice function, the first and second cylinder rod (CR1, CR2) The end of the upper plate 1332 is fixed to restrict the flow of the fluid charged in the first direction fixing cylinder (CY1) and the second direction fixing cylinder (CY2) It provides a total station for geodetic surveying for leveling, characterized in that configured to resist the instantaneous lateral pressure applied to the tilt sensor 134.

According to the present invention, once the horizontal state of the total station is fixed, the fixed bar forcibly maintains the horizontal state of the total station, thereby minimizing horizontal disturbance caused by fluctuations or wind power that may occur during the operator operating the total station. The effect can be obtained.

1 is a block diagram illustrating a surveying system to which a total station according to the present invention is applied;
2 is an exploded perspective view showing a state of a total station according to the present invention;
3 is a cross-sectional view schematically showing the appearance of a sensor according to the present invention;
4 is a block diagram showing the configuration of the detector,
5 is a plan view showing a state of the support and the tilt sensor according to the present invention,
6 is a cross-sectional view schematically showing the operation of the detector according to the present invention,
7 is an exploded perspective view showing a state of the fixing bar according to the present invention;
8 is a cross-sectional view showing the operation of the fixing bar according to the present invention,
9 is an image showing a contour image,
10 is a cross-sectional view showing the operation of the tripot according to the present invention;
11 is an exemplary view showing a further embodiment of a total station according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Before describing the present invention, the following specific structural or functional descriptions are merely illustrative for the purpose of describing an embodiment according to the concept of the present invention, and embodiments according to the concept of the present invention may be embodied in various forms, And should not be construed as limited to the embodiments described herein.

In addition, since the embodiments according to the concept of the present invention can make various changes and have various forms, specific embodiments are illustrated in the drawings and described in detail herein. However, it should be understood that the embodiments according to the concept of the present invention are not intended to limit the present invention to specific modes of operation, but include all modifications, equivalents and alternatives falling within the spirit and scope of the present invention.

This invention uses Unexamined-Japanese-Patent No. 2012-0057915 mentioned later as it is. Therefore, all of the device configuration features described below are those described in the Patent Publication No. 2012-0057915.

However, in the present invention, the inclination sensor has a fluidity with respect to the top plate of the configuration disclosed in the 2012-0057915, the improved part to have a structural connection in a state with resistance to rapid lateral pressure is the most essential Constructive features.

Therefore, the device configuration, features and operation relations described below will be cited in the contents of the Patent Publication No. 2012-0057915 as it is, and will be described in detail with respect to the configuration associated with the main features of the present invention at the rear end.

As shown in FIG. 1, the total station 1 according to the present invention is installed in a specific area to survey the surrounding topography of the area, and the surveyed data is wired or wirelessly communicated to the data processing server 2. .

The total station 1 for this purpose is a GPS receiver 11 for communicating with GPS satellites G so as to check the current position, a surveying device 12 for photographing and leveling the terrain to be measured, and a surveying device 12 Detector 13 for detecting and adjusting the horizontal state of the sensor, a controller 14 for controlling the operation of the GPS receiver 11, the surveying device 12 and the detector 13, and the surveying device 12 And a transmitter 15 for transmitting the surveyed data to the data processing server 2.

The GPS receiver 11 is a conventional satellite communication device for communicating with the GPS satellite G.

Surveying apparatus 12 is a measurement means that can measure the angle and distance together, as is known, the electronic theodolite and the electro-optical instruments (EDM) are integrated into one instrument It is an electronic measuring and measuring device that processes the measured data quickly and outputs the result.

There are optical light source type main body type that adds a side angle function to a light wave side terrestrial object, an optical type light oil type object type which has a light wave type side object attached to an optical type light oil type, and an electronic type light oil type object type which attaches a light wave type side object to an electric type light oil type .

The detector 13 automatically adjusts the horizontal position of the surveying device 12 so that accurate surveying and the like can be made. A detailed description thereof will be described with reference to other drawings.

The transmitter 15 is a conventional device for transmitting survey data. Wired or wireless communication may be applied. Typically, the survey data may be stored in a removable storage medium such as a USB memory, and then transferred to the receiver 21 of the data processing server 2 through the USB memory.

The controller 14 has an input means and an output means for allowing an operator to operate the GPS receiver 11, the surveying device 12, the detector 13, and the transmitter 15, and the GPS receiver 11 receives And calculation means for processing the survey information surveyed by the position information and the surveying device 12 to complete the survey data.

The data processing server 2 stores and manages survey data collected through one or more total stations 1, and processes the survey data to display contour maps including contours shown in FIG. 9 (images showing contour images). Write. Data processing server 2 for this purpose is a receiver 21 for receiving survey data transmitted from the total station 1, a processor 22 for processing the survey data to complete the contour image, the contour image and the survey And a DB 23 for storing and managing data.

The receiver 21 receives survey data corresponding to the transmitter 15, and the reception method will be determined according to the manner in which the transmitter 15 transmits the survey data.

The processor 22 is to produce a contour image by using the survey data, the contour image is a two-dimensional image that makes it easy to visually check the elevation of the terrain as shown in FIG. The contour image is an image of the altitude of a specific ground surface as a contour line, as shown in the figure, the contour line is connected to a continuous line of the same elevation point based on the information of each point measured through the lidar Is completed. For reference, the contour image is completed by digitizing the contour, which is one of the main features of the map, in the form of a vector. This process is called vectorizing. Since the method for producing the contour image is a well-known and public technique, the description thereof is omitted here.

The DB 23 is a conventional storage medium for storing and managing the survey data and the contour image.

2 is an exploded perspective view showing a state of a total station according to the present invention, Figure 3 is a cross-sectional view schematically showing the state of a sensor according to the present invention, Figure 4 is a block diagram showing the configuration of the sensor , With reference to this.

The total station 1 according to the present invention includes a GPS receiver 11, a surveying device 12 and a controller 14, as mentioned above, and a detector 13 to allow them to be stably installed on the ground. It further includes.

As shown, the GPS receiver 11 is disposed at the top to increase the efficiency of satellite communication, the surveying device 12 and the controller 14 are arranged at the next stage to increase the convenience of the operator, the detector ( 13) is arranged at the bottom end to fix them stably from the ground. Accordingly, the detector 13 should have a function of supporting the GPS receiver 11, the surveying device 12, and the controller 14 to be optimized for terrain surveying.

For this purpose, the detector 13 includes a conventional triport 131 for stably fixing the surveying device 12 to the ground, a receiving box 132 for storing fluid by being fixed on the top of the triport 131, and surveying. It is composed of a support 133 that operates to level the device 12, and a tilt sensor 134 for checking the horizontal state of the surveying device 12.

Triport 131 is a three rod is arranged in a triangular pyramid shape is fixed, a tool widely used as a support means such as a camera.

Referring to Fig. 10 (sectional view showing the operation of the tripot according to the present invention) in detail, the triport 131 is a base 1311 for seating the support object of the total station 1, and the base Three first legs 1312 rotatably fixed to 1311, three connecting nuts 1314 threaded to each of the first legs 1312, and bolts connected to the connecting nuts 1314, respectively. It consists of three second legs 1313.

In more detail, the first and second legs 1312 and 1313 and the connection nut 1314 form a thread coupling with each other, and for this purpose, the outer surface and the connection nut 1314 of the first and second legs 1312 and 1313 are used. Threads 1312a, 1313a, and 1314a are respectively formed on the inner surface of the head. At this time, the formation direction of the screw thread 1312a of the first leg 1312 and the screw thread 1313a of the second leg 1313 is reversed to each other, and correspondingly, the threads 1312a, Threads 1314a respectively engaged with 1313a are also differently formed in opposite directions so that the first legs 1312 and the second legs 1313 may move in opposite directions according to the rotation direction of the connection nut 1314. As a result, when the connecting nut 1314 is rotated in one direction, the first and second legs 1312 and 1313 are close to each other, and the leg length of the triport 131 is shortened. When the connection nut 1314 is rotated in the other direction, the first and second legs 1312 are rotated. 1313 are longer from each other, the leg length of the triport 131 is longer. For reference, a pivoting method may be applied to the rotatable connection structure between the first leg 1312 and the base 1311.

The operator adjusts the length of the triport 131 by rotating the connection nut 1314, and the total station 1 is leveled by adjusting the length, in which the operator utilizes the bubble fitting means 1323 for the total station. The approximate horizontality of (1) is primarily adjusted.

Afterwards, a more detailed leveling is achieved through the sensor 13, a detailed description of which will continue below.

The container 132 is equipped with a tank 1321 for receiving the fluid and pressurizing means 1322 for pressurizing the fluid in the tank 1321 under the control of the controller 14. In addition, the upper surface of the receiving box 132 is provided with a bubble alignment means (1323) reinforcement, so that the operator can use the bubble alignment means (1323) to roughly level. The storage box 132 includes a relatively heavy tank 1321 and pressurizing means 1322, so that the adjustment bar 1333, which should support a constant load, is located below the support 133 so as not to overdo it. desirable.

The support 133 is a rectangular lower plate 1331 that is constructed on the receiving box 132, four adjustment bars 1333, the lower end of which is rotatably installed at each corner of the lower plate 1331, and an adjustment bar ( 1333 has an upper plate 1332 disposed side by side on the upper layer of the lower plate 1331 while being rotatably fixed to each corner of the square, and the lower and upper ends are fixed to the lower plate 1331 and the upper plate 1332, respectively. 1331 and three fixing bars 1334 to stop the relative movement of the top plate 1332.

As mentioned above, the four adjustment bars 1333 are rotatably fixed to each corner of the lower plate 1331 and the upper plate 1332, and the adjustment bar 1333, the lower plate 1331, and the upper plate 1332 are rotated. It will be connected by well-known tolerant pivot fastening.

Subsequently, the adjustment bar 1333 is hydraulic cylinder technology applied, and the four adjustment bars 1333 communicate with the tank 1321, and the opening and closing is controlled through the valve V. Of course, the valve (V) proceeds the opening and closing operation under the control of the controller 14, through which the fluid of the tank 1321 is selectively introduced into the adjustment bar (1333). Thus, when fluid enters the adjustment bar 1333, the adjustment bar 1333 will be extended in length in accordance with the normal hydraulic cylinder operation. For reference, when the tank 1321 is not pressurized, the adjusting bar 1333 is compressed under pressure due to the weight of the surveying device 12 seated on the detector 13. Therefore, when the survey operation is not performed or immediately after the total station 1 is installed for surveying, the controller 14 opens all the valves V and is high. Therefore, all fluids introduced into the adjustment bar 1333 are tanks. Back flow 1321, through which the length of the adjustment bar 1333 will be the shortest.

However, when the controller 14 partially opens the valve V for horizontal adjustment and activates the pressurizing means 1322, the fluid of the tank 1321 moves along the line, and the corresponding adjustment bar 1333 of the open valve V is moved. ), And the length of the corresponding adjustment bar 1333 will be extended. Of course, the position of the upper plate 1332 relative to the lower plate 1331 is changed through this extension process of the adjustment bar 1333.

The fixing bar 1334 will be described below with reference to FIGS. 7 and 8.

Figure 5 is a plan view showing the appearance of the support and the tilt sensor according to the present invention, Figure 6 is a cross-sectional view schematically showing the operation of the sensor according to the present invention, will be described with reference to this.

As shown in FIG. 3, the inclination sensor 134 is constructed on the upper plate 1332, and has a hemispherical sensing panel 1341 and a laser gun rotatably installed based on the circle center of the sensing panel 1341 ( 1342). Accordingly, the sensing panel 1341 of the inclination sensor 134 is inclined together when the top plate 1332 loses the horizontal state and tilts, but the laser gun 1342 maintains the state toward the vertical direction as shown in FIG. do. As a result, the receiving position of the sensing panel 1341 with respect to the light irradiated by the laser gun 1342 is out of the center point CP.

On the other hand, the sensing panel 1341 is divided into quarters (a1, b1, c1, d1) divided into quarters so as to face the same line with the adjustment bars 1333 (a, b, c, d) arranged in all directions so that the laser gun The light receiving position of 1342 can be accurately confirmed, and the zones a1, b1, c1, d1 are exactly bounded by the boundary line L, so that the light of the laser gun 1342 irradiates the boundary line L. You can also check.

As an example, the sensing state of the tilt sensor 134 will be described. When the light reception of the laser gun 1342 is confirmed in the a1 region, the sensing panel 1341 transmits it to the controller 14 and the controller 14. Confirm that the surveying device 12 is inclined toward the corresponding adjustment bar (a) facing outward in the area a1. Of course, the controller 14 opens the valve (V) of the adjustment bar (a) to flow the fluid into the adjustment bar (a), the adjustment bar (a) is inclined of the surveying device 12 while the length is extended Correct your luggage. However, it is also possible to adjust the inclination by discharging the fluid from the adjusting bar rather than inflow of the fluid.

That is, when the area a1 receives the light from the laser gun 1342, the fluid introduced into the adjustment bar d, which faces the adjustment bar a, around the sensing panel 1341 is discharged. You can also correct the skew.

On the other hand, when the boundary line L receives the light of the laser gun 1342, the tilting of the surveying device 12 is corrected by driving the adjustment bars located on the same line outward of the areas sharing the boundary line L together. do.

When the light of the laser gun 1342 is received by the center point CP of the sensing panel 1341 while the correction operation is performed, the controller 14 causes the surveying device 12 to maintain a horizontal state as shown in FIG. 6 (b). Deemed to have been achieved, all the valves V for controlling the adjusting bar 1333 are closed, and the pressurizing means 1322 also stops driving thereof.

7 is a perspective view illustrating an exploded view of a fixing bar according to the present invention, and FIG. 8 is a cross-sectional view illustrating an operation of the fixing bar according to the present invention.

Since the adjustment bar 1333 according to the present invention is a hydraulic cylinder method, a change in the length of the adjustment bar 1333 may occur temporarily when an external force occurs due to the possibility of volume change of the fluid, thereby losing the horizontal level previously adjusted. have.

Of course, even in such a situation, since the surveying operation by the surveying device 12 is in progress, an error may occur in the collected survey result, thereby lowering the reliability of the survey data.

In order to solve this problem, when the level of the surveying device 12 is determined, the measurement device 1 according to the present invention can minimize the shaking of the surveying device 12 generated due to the operator's operation of the controller 14 or the wind. The fixed bar 1334 is provided with reinforcement.

The fixed bar 1334 has a tubular cylinder 41 having a rail 41a formed in the inner surface thereof, and a guide groove 42a movably inserted into the cylinder 41 and engaged with the rail 41a. When formed, the inner surface has a tubular piston 42 having a thread 42b, a motor 43 fixed to the piston 42 to rotate the rotating shaft 43a, and a longitudinal direction of the rotating shaft 43a. It is installed so as to be movable and rotates in conjunction with the rotary shaft 43a, and the outer surface is formed with a pressing member 44, the cylinder 44 and the motor 43 formed with a thread 44b for engaging the thread 42b of the piston 42. ) Is composed of spherical pivot balls 45a and 45b which mediate the connection so as to be rotatably fixed to the upper plate 1332 and the lower plate 1331, respectively. At this time, the rotating shaft 43a is formed to have a length penetrating through the hollow of the tubular piston 42 and the cylinder 41, and each has a columnar shape, and the pressure member 44 interlocked with the rotating shaft 43a A through hole 44a for penetrating is formed, and the through hole 44a is formed in a shape corresponding to the cross section of the rotating shaft 43a.

Three fixing bars 1334 constituting such a configuration are arranged in the center of the lower plate 1331 and the upper plate 1332 in an equilateral triangle.

Subsequently, the controller 14 controls the opening and closing of the valve V according to the information detected by the inclination sensor 134, through which the lower plate 1331 and the upper plate 1332 continue to operate as shown in FIG. 6. In this process, withdrawal of the cylinder 41 and the piston 42 is repeated as shown in FIG. Of course, the pivoting bar (1334) by the pivot ball (45a, 45b) will continue to rotate about the lower plate (1331) and the upper plate (1332).

When the controller 14 checks the horizontal alignment of the measurement apparatus 12 through the inclination sensor 134, as shown in FIG. 8 (c), the controller 14 rotates the rotating shaft 43a by controlling the motor 43. Of course, the rotation of the rotating shaft 43a to rotate the pressing body 44, the rotation is to move the pressing body 44 by the screw movement by the coupling of the threads (42b, 44b). At this time, the cylinder 41 and the piston 42 are made of synthetic resin having elasticity, the press body 44 is made of a high density metal material, the outer diameter of the press body 44 is larger than the inner diameter of the piston 42 When the situation as shown in FIG. 8 (c) occurs, the pressurizing member 44 exerts a force to the outside of the piston 42, and the force is transmitted to the cylinder 41, thereby providing the cylinder 41 and the piston 42. ) Close to each other.

Of course, such close contact between the cylinder 41 and the piston 42 strengthens the mutual binding of the cylinder 41 and the piston 42 so that the change of the length of the fixing bar 1334 does not occur, and thus the upper plate 1332 is The leveling can be maintained.

On the other hand, in order to release the fixed state of the fixing bar 1334, the controller 14 rotates the rotary shaft 43a in the reverse direction, through which the press body 44 overlaps the cylinder 41 and the piston 42. By deviating from the point, the piston movement of the cylinder 41 and the piston 42 can be made smoothly.

The present invention is based on the above-described configuration, while the inclination sensor 134 has a fluidity with respect to the top plate 1332, and has a structure that can withstand rapid lateral pressure to improve the measurement stability, reducing the measurement error Additional embodiments are included to maximize accuracy.

To this end, a further embodiment according to the present invention, as shown in (a), (b), (c) of Figure 11, a plurality of fixed cylinder to form a substantially rectangular shape on the bottom surface of the tilt sensor 134. Equipped.

At this time, the fixed cylinder is preferably provided with four, two pairs are formed in pairs of two each.

In particular, the fixed cylinder includes a pair of first directional fixed cylinders CY1 so as to correspond to lateral pressure in the lateral direction, and a second directional fixed cylinder CY2 to correspond to lateral pressure in the longitudinal direction.

In addition, the upper end surfaces of the first direction fixing cylinder CY1 and the second direction fixing cylinder CY2 are firmly fixed to the lower end surface of the inclination sensor 134 to form an integrated body.

In addition, the first directional fixed cylinder (CY1) and the second directional fixed cylinder (CY2) are each spaced apart from each other at intervals in the radial direction of the inclination sensor (134) when forming a pair.

In addition, the first direction fixed cylinder (CY1) and the second direction fixed cylinder (CY2), as shown in (c), a spherical center chamber (CCH) is formed in the center of the length, the center chamber (CCH) The side chambers SCH are formed at both sides thereof with the gaps therebetween.

In this case, the side chamber SCH is formed in a hemispherical shape.

In addition, the center chamber CCH and the side chamber SCH are connected to communicate with each other through a communication path OR.

In this case, the communication path OR is a cylindrical tube having a significantly smaller volume than the volume of the center chamber CCH and the side chamber SCH, that is, the diameter is significantly smaller.

In addition, a fluid is filled in the center chamber CCH and the side chamber SCH.

Therefore, when the fluid flows inside each of the first directional fixing cylinder CY1 and the second directional fixing cylinder CY2 under the rapid lateral pressure, the communication path OR performs a kind of orifice function. By stopping the normal fluid flow to stop the flow of the piston (P) and the first, second cylinder rod (CR1, CR2) to be described later.

On the other hand, both ends of the first direction fixed cylinder (CY1) and the second direction fixed cylinder (CY2) are provided with a piston (P), respectively, the piston (P), the first and second cylinder rod (CR1, CR2) Is fixed to the connection.

In addition, the first and second cylinder rods (CR1, CR2) is formed in a substantially 'b' shape, the bent end is firmly fixed to the top plate 1332.

Therefore, since the flow of the fluid through the communication path (OR) is usually free, regardless of the inclination of the upper plate 1332, the inclination sensor 134 does not make a rapid flow, but gradually inclines according to the flow of the fluid. Losing the flow.

That is, when the impact due to the inclination of the upper plate 1332 is transmitted to the inclination sensor 134, the absorption by the flow of the internal fluid by the operation of the first direction fixed cylinder (CY1) and the second direction fixed cylinder (CY2) The shock received by the inclination sensor 134 becomes very weak and stable maintenance is achieved.

Then, when the top plate 134 is recovered again, the inclination sensor 134 also performs its function without problems.

However, when the instantaneous lateral pressure is generated to the tilt sensor 134 side, the tilt sensor 134 causes extreme shaking, causing a measurement error.

In particular, when a strong wind or the like is concentrated toward the inclination sensor 134 side, severe flow may occur. In this case, the fluid inside the first directional fixing cylinder CY1 and the second directional fixing cylinder CY2 may have a side chamber ( The orifice phenomenon occurs in the communication path (OR) while trying to move rapidly from the SCH to the center chamber (CCH).

Then, since the inclination sensor 134 is integrated with the top plate 1332 and moves together with the top plate 1332, stability of the inclination sensor 134 can be maintained, and shaking or shaking due to strong winds is suppressed.

Therefore, since the inclination sensor 134 has fluidity with respect to the upper plate 1332 in general, stable measurement is possible regardless of the minute flow of the upper plate 1332, and when the phenomenon of sudden lateral pressure is induced, It is possible to ensure the behavior stability while preventing damage or breakage by inducing the upper plate 1332 and the behavior together.

One; Total Station 2; Data processing server
11; GPS receiver 12; Surveying device
13; Sensor 14; Controller
15; Transmitter 21; receiving set
22; Processor 23; DB

Claims (1)

A GPS receiver 11 for receiving GPS information while communicating with a GPS satellite G, a surveying device 12 having a ranging and angle measuring function between a current position and a remote point, and a base 1311; Three first legs 1312 formed on the outer surface of the thread 1312a and rotatably fixed to the base 1311; Three second legs (1313) formed on the outer surface of the thread (1312a) and the thread (1313a) in the opposite direction; A tri-tree consisting of three connecting nuts 1314 formed with threads 1314a engaged with the threads 1312a and 1313a at both ends thereof so as to connect the first legs 1312 and the second legs 1313 in a row. Port 131: a tank 1321 containing a fluid; Pressurizing means 1322 for pressurizing the internal pressure of the tank 1321; Bubble alignment means (1323) for checking the horizontal; Receiving box 132 mounted and fixed to the tri-port 131: a rectangular lower plate (1331) built in the housing 132; Four adjustment bars 1333 having a hydraulic cylinder structure in which the lower end is rotatably fixed to the corners of the lower plate 1331 and communicates with the tank 1321 and the valve V so as to be opened and closed respectively; An upper plate 1332 on which an upper end of the adjustment bar 1333 is rotatably fixed and constructed to face the lower plate 1331 up and down; The cylinder 41 having the rails 41a formed on the inner surface along the longitudinal direction, and the guide grooves 42a movably engaged with the rails 41a are formed on the outer surface, and threads 42b are formed on the inner surface to form the cylinder ( A motor 43 for rotating a tubular piston 42 movably inserted into 41 and a rotating shaft 43a fixed to the piston 42 and penetrating the hollow of the cylinder 41 and the piston 42. And, while moving along the longitudinal direction of the penetrating rotary shaft 43a rotates with the rotation of the rotary shaft 43a, the outer surface is formed with a thread 44b for engaging the thread 42b of the piston 42 and the piston ( The outer diameter is relatively larger than the inner diameter of the piston 42 so that the 42 is expanded, and the cylinder 41 and the motor 43 are respectively installed and rotated on the lower plate 1331 and the upper plate 1332, respectively. Three fixing bars 1334 made up of pivot balls 45a and 45b that can be engaged with each other; It is divided into four zones (a1, b1, c1, d1) so as to face the four adjustment bars (1333; a, b, c, d), and independently detects the light. and b1, c1, and d1) to form a boundary line L having an independent light sensing function, and form a center point CP having an independent light sensing function at the center thereof, and a sensing panel 1341 installed at the top plate 1332. ; A tilt sensor 134 comprising: a laser gun 1342 rotatably installed at the hemispherical sphere center and irradiating light to the sensing panel 1341, including a detector 13 and a surveying device 12 It controls the operation of the transmitter 15 and the GPS receiver 11, the surveying device 12 and the transmitter 15 for transmitting the collected survey data, and operates the laser gun 1342 of the detector 13, the sensing panel A controller 14 for receiving the light reception information of the 1341 and controlling the operation of the pressurizing means 1322 and the valve V and the motor 43;
A pair of first direction fixed cylinders CY1 fixed to the bottom surface of the tilt sensor 134 and a pair of second direction fixed cylinders CY2 fixed in a direction orthogonal to the first direction fixed cylinder CY1. ), Pistons P installed in both ends of the first direction fixed cylinder CY1 and the second direction fixed cylinder CY2, and the first and second cylinder rods CR1 and CR2 connected to and fixed to the piston P. The center chamber CCH formed at the center of the length of the first direction fixed cylinder CY1 and the second direction fixed cylinder CY2 and the center chamber CCH are formed at both sides thereof, and the piston P is A built-in side chamber (SCH), the center chamber (CCH) and the side chamber (SCH) in communication with each other further comprises a communication path (OR) for performing an orifice function, the first and second cylinder rod (CR1, CR2) The end of the upper plate 1332 is fixed to restrict the flow of the fluid charged in the first direction fixing cylinder (CY1) and the second direction fixing cylinder (CY2) Total station for geodetic surveying for leveling, characterized in that configured to resist the instantaneous lateral pressure applied to the tilt sensor (134).

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