KR101946309B1 - GPS satellite with accuracy receiving survey plan system - Google Patents

Abstract

The present invention relates to a geodetic survey planning system with precise reception of GPS satellite signals capable of increasing the accuracy and reliability of geodetic survey data. The system includes: a receiving part receiving a satellite signal from a GPS satellite through a reference GPS receiver and a mobile GPS receiver; a control part analyzing satellite data by using three-dimensional geographical information data and GPS satellite orbit data used to track a position change of the GPS satellite; and an input and output part outputting stable data reception information of each target spot calculated through the control part.

Description

{GPS satellite with accuracy receiving survey plan system}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a geodetic survey planning system by precise reception of GPS satellite signals, and more particularly, Time), and the accuracy of the static positioning system that precisely calculates the relative distance between the reference point (reference point) and the moving point (moving point) where each of the GPS receiver is located, In order to reduce the time required for geodetic surveying and to improve the accuracy and reliability of data by geodetic surveying, the geophysical surveying system .

In the field of precision geodetic surveying technology by receiving GPS satellite orbital data, when receiving and processing together the radio waves transmitted by the same GPS satellites at the same time using two different GPS data receivers, A very precise relative distance between two receiving points can be calculated.

This method of positioning is a static positioning method using GPS. In order for the static positioning result using GPS to be reliable, it is necessary to satisfy the condition that a radio wave should be received for a predetermined time or longer from a certain number of GPS satellites or more at the same time.

The GPS satellite system consists of at least 24 satellites that rotate six orbits of approximately 20,000 km above the ground at intervals of about 12 hours, and is a positioning system configuration that can be instantly received by anybody anywhere on earth.

A GPS surveying system has been used which satisfies the above conditions and allows the operating entity to predict information about the movement of GPS satellites in advance and distribute the information in order to predict the radio wave reception situation at a specific point.

Conventionally, the reference point surveying work using GPS has a problem in that it takes a lot of field surveying cost, and it is difficult to evaluate the positioning environment well while receiving data, so that it does not secure enough data reception time to assure the accuracy, .

The patent of the prior art according to one embodiment related to the collection of the satellite positioning information includes a device for collecting satellite positioning environment information (Korean Patent Registration No. 10-0456041, registered on October 28, 2004).

However, the patent according to the embodiment of the related art can display reception environment information data collectively on one image data through the fisheye lens of the camera, but it is difficult to analyze the factors impeding the reception environment of the airwaves due to the obstacle of the feature Lt; / RTI >

A patent on the prior art that partially solves this problem includes a 'GPS satellite surveying system' (Korean Patent Registration No. 10-0597857, Jun. 30, 2006).

However, the above-mentioned improved prior art technique has a problem in that reliability and accuracy are lowered because a receiver for receiving a signal of a GPS satellite is heavily influenced by the surrounding environment and therefore requires a long time for surveying and requires a skilled worker have.

Korea Patent Registration No. 10-0456041 (Registered on October 28, 2004) 'Device for collecting satellite positioning environment information' Korea Patent Registration No. 10-0597857 (Registered on June 30, 2006) 'GPS Satellite Survey Planning System'

In order to solve the problems and necessities of the related art as described above, the present invention predicts a very accurate GPS reception environment using three-dimensional geographical information data and GPS satellite data (information) rotating on an orbit, And it is an object of the present invention to provide a geodetic survey planning system by precise reception of GPS satellite signals capable of processing the GPS satellite data on the GPS satellites, securing the accuracy of the geodetic survey with respect to the location information,

In addition, the present invention provides a GPS satellite signal (GPS satellite signal) capable of performing more complete field analysis work by adding a precise analysis function of satellite numbers simultaneously receiving at two points using three-dimensional geographical information data and satellite orbit data It is an object to provide a geodetic survey planning system by precision reception.

In the meantime, the present invention is automatically driven to a posture in which the required number of GS satellite signals can be received optimally for a predetermined time without being affected by the geographical surrounding environment of each site where the GPS receiver is installed for the geodetic survey, The present invention provides a geodetic surveying planning system using GPS satellite signal precise reception that reduces the time required for a geodetic surveying system.

In order to achieve the above object, the geodetic survey planning system using the GPS satellite signal precision reception system according to the present invention calculates an appropriate reception time of a satellite signal received from a plurality of GPS satellites at the same time, And a mobile GPS receiver observing the target point while moving the target point; 3D satellite data that can be simultaneously observed using GPS satellite orbital data used to track the change of position of GPS satellites and three-dimensional geographic information data that quantify the uplift of the terrain, undulations of main buildings and facilities, A control unit for analyzing; And an input / output unit for inputting a national reference point or city reference point information on which a GPS reference point, a target point and a reference GPS receiver can be installed, and outputting stable data reception information of each target point calculated by the control unit, The control unit further includes a coordinate transformation module for transforming the coordinates based on the Almanac data into the coordinates based on the earth center reference coordinate system. In the receiver for two different points set up for measuring the accurate relative distance between the reference point and the observation target unknown point, In which the reference GPS receiver and the mobile GPS receiver are cylindrical in shape, and the center of gravity is located at a lower portion of the center of gravity And a ground circuit portion is provided inside the hollow cylindrical portion formed It said, the circuit box unit installed jipieseu antenna on the upper side plane of the cylindrical portion; A horizontal holding part pivotally installed on a part of an upper side surface of the circuit box part to maintain the horizontal position of the circuit box part at a slope; Wherein the horizontal holding part is provided with a first pivotal shaft projecting in a straight line on both sides of the upper side of the cylindrical part and rotating the circuit box part in a range of 180 degrees in one direction; A rotating tether having a first rotating hole in which the first rotating shaft is inserted in a rotating state and formed in a straight line and having an inner diameter larger than an outer diameter of the cylindrical portion and having a circular tapered shape; A second pivot shaft protruding from the outer peripheral surface of the rotating frame in both directions on a straight line perpendicular to the straight line formed by the first rotating hole; A second rotating hole for inserting the second rotating shaft in a rotating state; A support portion formed with the second rotation hole at a height longer than the length of the cylindrical portion; And a frame part fixedly installed with the receiving part and having a rectangular shape as a whole; . ≪ / RTI >

The present invention having the above-described configuration adds a precise analysis function of satellite numbers capable of simultaneously receiving three-dimensional geographical information data and satellite data on a trajectory (a GPS signal) There is an advantage of providing a geodetic survey planning system by the precision reception of the GPS satellite signal performing the work.

Meanwhile, the geodetic survey planning system using the geophysical satellite signal precise reception of the present invention can estimate the geographical location of the GPS satellite relative to the GPS satellite, Information can be obtained and the minimum observation time calculated at each reference point (reference point and moving point) is applied to the field work to improve the accuracy of the geodetic surveying work and to reduce the unnecessary observation time, It is possible to efficiently process the on-site data without waste of time, since the accuracy of the geodetic survey result is secured by receiving GPS data and processing the data only for the time required for securing the accuracy through highly accurate prediction of the environment.

Also, since the present invention receives the required number of SAR satellite signals in an optimum state for a predetermined time without being affected by the surrounding environment due to the terrain of each site where the GPS receiver is installed, And the time required for geodetic surveying is reduced.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a GPS receiver constituting a geodesic survey planning system by precise reception of GPS signals,
FIG. 2 is a perspective view for explaining an operation of a GPS receiver constituting a geodesic survey planning system by precise reception of GPS signals, according to an embodiment of the present invention; FIG.
3 is a predictive diagram of a GPS data reception environment using three-dimensional geographical information and GPS satellite operation forecast information data,
4 is a structural block diagram of a geodesic survey planning system by precision reception of GPS signals in accordance with an embodiment of the present invention.
FIG. 5 is a diagram showing an embodiment of a minimum three-dimensional geographical information model for satellite reception delay analysis,
Fig. 6 is a format diagram of the GPS Almanac data; Fig.
7 is a signal flow chart of a geodesic survey planning system by precision reception of geophysical satellite signals according to an embodiment of the present invention,
FIG. 8 is a diagram showing a satellite data analysis in which a GPS satellite radio wave reception state is predicted at a point where a reference GPS receiver is located and a mobile GPS receiver is located;
And,
FIG. 9 is a diagram illustrating a result of designing a reference point surveying operation using a GPS satellite according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The present invention is capable of various modifications and various embodiments, and specific embodiments are illustrated in the drawings and will be described in detail in the detailed description. It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described more fully with reference to the accompanying drawings, in which exemplary embodiments of the invention are shown.

The present invention utilizes the GPS satellite surveying planning system of Korean Patent Registration No. 10-0597857 (registered on June 30, 2006), which is a patent prior art document, and by the topographical problem of the surrounding environment in which the GPS receiver is installed in the prior art It solves some of the problems of not receiving GPS satellite signals correctly, thus improving system reliability and accuracy.

Therefore, the following description refers to the contents described in the patent registration No. 10-0597857 (registered on Jun. 30, 2006) 'GPS satellite surveying system' as patent prior art document, and in the latter part, the topographical The configuration for overcoming a problem and correctly receiving GPS satellite satellite signals of a certain number or more over the same time period for a predetermined time will be described in detail.

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

FIG. 3 shows a prediction of a GPS data reception environment using three-dimensional geographical information and GPS satellite operation forecast information data. FIG. 4 is a block diagram showing the components of a geodesic survey planning system by precision reception of GPS signals of the present invention, Respectively.

As shown in FIGS. 3 and 4, the present invention relates to a geodetic surveying system by precise reception of GPS satellite signals, and more particularly, to a geodetic surveying system using GPS satellite signal precise reception, in which the location of major radio disturbing features such as terrain, GPS satellite position, To estimate the reception environment of the GPS data.

In order to construct a system for predicting the GPS static positioning environment, it is necessary to set a fixed number of times for a predetermined time (minimum observation time) at the two-point GPS receiver installed to measure the precise relative distance between the reference point and the measurement target point (Ground signal) transmitted from the above-mentioned GPS satellite must be received. (Reference point) The GPS receiver's positioning environment and the location of the GPS receiver to be measured while moving the point of interest The location environment of the GPS receiver is calculated in advance before the field survey, and the same function and configuration And more particularly, to a geodetic survey planning system by GPS satellite signal precision reception that receives radio waves from a plurality of GPS satellite satellites located on the earth orbit to plan a surveying operation.

FIG. 5 shows an example of a minimum three-dimensional geographical information model for analyzing satellite radio reception delay. In order to analyze the factors impeding the reception of radio waves due to the shading of the terrain, the terrain relief, undulations of main buildings and facilities, Dimensional geographical information data and three-dimensional building geographical information data, which are data obtained by digitizing the position in the dimensional space, are required.

These data can be used as three-dimensional mapping data in the form of vector data, 3D contour data, or airborne laser survey data, which are produced as an intermediate product when producing the digital topographic map of the geodetic survey area.

The process of producing 3D geographic information data is not described in the present invention, and only consideration is given to the fact that the geographic information system data in which the undulation of the terrain is digitized, regardless of the form, is used to calculate the interference environment caused by the undulation of the feature do.

Since the 3D geographical information data is expensive to construct all the data newly, it is easy to judge that it is ineffective to apply the 3D geographical information data to the present system. However, the full utilization period of the present invention is currently being actively performed nationwide It is the time when construction and maintenance of 3D geographic information system is completed.

Therefore, after the construction of the 3D geographic information system at the national level is completed, a minimum amount of data necessary for the analysis of the radio interference environment is extracted from the preliminary data using the part of the constructed data or the automated data processing method, We use the method to utilize through building geographic information data.

Three-dimensional geographical information consists of buildings, main facilities, and terrain data. Table 1 shows the specifications of each.

building It consists of four numerical data: three-dimensional graphic data, horizontal, vertical, minimum surface elevation, and top surface elevation. tree It consists of numerical data of shape (cone, vertical oval, horizontal oval, etc.), height, and longest radius Linear facility It consists of numerical data of height and longest radius. Radio reception interference facilities It is composed of numerical data of disturbance reception facilities of GPS radio wave such as power transmission tower and wireless network base station, height, reception inhibition ratio, and longest radius terrain It consists of three numerical data: horizontal coordinate, vertical coordinate, and elevation.

Construction of three-dimensional geographical information for environmental simulation of radio interference inhibition

In the case of 3D numerical data, 3D map data, which is an intermediate product of existing national digital topographic map production, is mainly used. Airborne laser survey data and stereoscopic aerial photograph data are used when they are used.

FIG. 6 illustrates the format of the GPS Almanac data, which models the orbit of the GPS satellite using Almanac data distributed by the operating entity of the GPS satellite and tracks the change of the position of the GPS satellite according to the change of time.

The satellite orbit is modeled using the values of the satellite coordinate system, and then the position of the satellite in orbit is converted into the coordinates based on the earth-centered reference coordinate system.

The procedure for calculating the position of the satellite using the Almanac data is as follows. First, the eccentricity value E (t) is calculated by using the average abnormal value M and the eccentricity e using the following equation (1).

[수학식 1]

[Equation 1]

)를 결정한다. Here, the value of the time (t) is calculated by comparing the generation time of the input inversion data with the observation time. Next, the position vector (r) on the satellite orbit and the variation vector (time

).

[수학식 2]

&Quot; (2) "

이다.here,

to be.

(R) the coordinate vector of the celestial reference coordinate system to the coordinate of the celestial reference coordinate system by the following equation (3), and then applies the angle between the Greenwich meridian and the meridian passing through the vernal equinox (R ') of the earth reference coordinate system.

[수학식 3]

&Quot; (3) "

Where R3 {Θ} is the angle between the Greenwich meridian and the meridian passing through the vernal equinox.

The position vector r on the satellite orbit ellipse is converted into a vector of 1 row 3 columns by adding 0 to the value of the ellipsoidal roughening direction component using the existing (e1, e2) component, To obtain the locus (rho) of the satellite based on the geocentric coordinate system.

[수학식 4]

&Quot; (4) "

Here, the locus (rho) of the satellite based on the geocentric coordinate system is a coordinate in the form of a three-dimensional rectangular coordinate system.

By using the above procedure and using the trajectory information input through the Almanac data, it is possible to calculate the position of the satellite based on the earth reference coordinate system, and calculate the time change position according to the movement of the satellite while changing the time.

FIG. 7 is a flowchart showing a method of operating a geodesic survey planning system by precise reception of geophysical satellite signals according to the present invention, wherein a user inputs information on a reference point as a reference for position measurement in the system, The system calculates the type of the satellite and the reception time at each point (reference point) and the moving point) using the three-dimensional geographical information data and the GPS satellite orbit data, And a minimum observation time (proper reception time) at which the number of simultaneously observed satellites with the GPS receiver built in the GPS receiver and the reception time becomes stable.

The present invention complements the use of predicted satellite movement route data and positioning target points (reference point and moving point) data to check the reception situation of satellite radio waves at a single point, so that application of building and terrain data, In addition, it is possible to carry out a more complete field observation work by adding the precise analysis function of the number of satellites that can be simultaneously received at the point of time. In order to perform the GPS relative positioning in which the accurate relative distance between two points is calculated, The essential thing to do is to receive radio waves from four or more identical satellites at the same time in two different points for a certain period of time. In order to perform the field data observation task satisfying these conditions, it is necessary to grasp the positional relationship between the point of position measurement, the point of position measurement and the position of the GPS satellites in advance, It is necessary to check beforehand whether the field survey work that can be performed in accordance with the accurate position measurement work can be performed, and to perform a data reception work that reflects the actual field survey. The movement point can be one or more, but can be described as one for ease and ease of explanation.

That is, the present invention guides the field worker to carry out the GPS satellite surveying planning work by informing the field worker how long the GPS satellite data should be received, when receiving the GPS satellite data at some point.

FIG. 8 shows a satellite data analysis in which a GPS satellite radio reception state at a point (reference point) where the reference GPS receiver is located and a point (a moving point) where the mobile GPS receiver is located is predicted. , It is possible to calculate the total data reception time that can satisfy the condition for securing stable accuracy when processing the data received later by calculating how long the same observation satellite radio wave can be received .

The accuracy of the GPS position measurement is ensured if the simultaneous observation performed while the number of simultaneous observation satellites is secured for at least a predetermined time is secured. In the case of using the present invention, the minimum observation time for satisfying all of these conditions is three- It is possible to sufficiently ensure the accuracy of the surveying operation by calculating using the information data and the satellite orbit data.

The accuracy of GPS surveying depends on the distance between the reference point and the point of interest (the point of travel), and in general, the longer the distance, the greater the observation time of data.

The rules for observing time vary according to the rules of various surveying operations. In the present invention, the observation time zone is determined as shown below. When the user enters the minimum observation time in accordance with the purpose of the survey and the national regulations, the total observation time is calculated by multiplying the observation time by the minimum number of satellites 5.

For example, if the survey is an aerial photogrammetric survey, the minimum data observation time is typically 30 minutes, but accuracy should be ensured only if there are at least five satellites consecutively observed at this time. In this case, multiplying the minimum observation time by the number of satellites results in a total observation time of "30 minutes × 5 satellites = 150 minutes". Therefore, the GPS satellite survey planning system according to the present invention analyzes the satellite orbital data and the three-dimensional geospatial data, calculates the types and time zones of observable GPS satellites, calculates the simultaneous observation times for the respective satellites, If the calculated total observation time is larger than the "minimum observation time × 5", the minimum observation time input by the user is used as it is, and if it is insufficient, the minimum observation Increase the time.

The minimum observation time increased until the condition is satisfied is used as the minimum observation time to be applied during the field survey.

FIG. 9 shows a result of designing a reference point surveying operation using a GPS satellite. In general, in a satellite survey using GPS, after a satellite data receiver is installed at a reference point, .

When the data received from the reference point and the observation target points (moving points) are processed together, accurate coordinates of the observation target points are calculated.

Therefore, if the position of the reference point is input and the position of the first observation point and the observation start time are input after the position of the reference point is used in the present invention, the system calculates the minimum observation time that is sufficient for securing the positioning accuracy for the first observation point, .

Next, the user inputs the observation start time at point 2 by summing the observation time at observation point 1 (movement point) and the movement time from observation point 2 (observation point) to point 2, The user calculates the minimum observation time at the point, and the user inputs the observation start time for all observation points through the process described above, and obtains information on the minimum observation time at each point.

Having described specific portions of the invention in detail, those skilled in the art will appreciate that these specific embodiments are merely preferred embodiments and that the scope of the invention is not limited thereby will be. It is therefore intended that the scope of the invention be defined by the claims appended hereto and their equivalents.

In this way, the same GPS receiver is used and the minimum number of GPS satellites (minimum consecutively observed minima) simultaneously for a predetermined time (minimum observation time) in the observation target point (mobile point) including the reference point, the first observation point and the n observation point, Satellite) at the same time.

In other words, it is common that a given time is relatively short so that the minimum number of satellites necessary for the same time can be observed at the same time since the satellite revolves around the earth orbit in about 12 hours.

On the other hand, since relatively large number of GPS satellites are placed in the upper part of the urban area where the users of the GPS signals are relatively large, the time available for observing the conditions satisfying the static positioning is comparatively long. However, in the urban areas with high- It is general that the observable time period of the condition satisfying the condition is relatively very short.

In addition, since relatively few GPS satellites are placed in mountainous areas, desert areas, and grassland areas with relatively few users, it is common that observable time zones satisfying the conditions of static positioning are relatively short.

That is, the static positioning method using the GPS receiver is very precise with an error range of a few millimeters, but it is required to receive a plurality of GPS satellite signals as soon as possible.

However, since it is necessary to complete the installation of the GPS receiver at the reference point and the observation target point, and at the same time, the measurement must be simultaneously performed during the minimum observation time at the start of the measurement, so that the preparation time, . Therefore, it is the intensive technical idea of the present invention to solve this problem of the static positioning method.

Fig. 1 is an exploded perspective view of a GSIS receiver constituting a geodetic surveying planning system by precise reception of GPS signals in an embodiment of the present invention. Fig. 2 is an exploded perspective view of a geodesic surveying system Fig. 2 is a perspective view for explaining an operation of the laser-less receiver constituting the laser-light receiver.

Since the reference GPS receiver and the mobile GPS receiver have the same configuration and function and function, they will be described in unison with the GPS receiver 1000 in the following description for facilitating explanation and facilitating understanding.

Referring to all the accompanying drawings, the geophathoscope receiver 1000 installed in the reference point or the observation target point (the moving point) according to an embodiment of the present invention includes a reference point to be geodetected and a reference point to be measured, The horizontal holding portion 1200, the fixed holding portion 1300, and the tripod portion 1400 are measured by measuring the coordinate values (numerical information, coordinate information, and positional information) .

The GPS receiver 1000 receives a GPS signal broadcasted by a GPS satellite from a grounded and installed state to a GPS ANT that maintains a horizontal position and performs geodetic survey or measurement of coordinate information.

When the horizontal axis of the GPS receiver 1000 can not be held horizontally, it can not correctly receive the GPS signals of the GPS satellites. If the GPS satellites are not horizontally held by the GPS receiver 1000, The error value is included in the distance value and the reception level value with respect to the signal received by each of the GPS satellite antennas, and the accuracy and precision of the geodetic surveyed value become low.

Therefore, when the SAW antenna of each of the fiber-optic receiver 1000 is kept horizontal, there is no error in the distance value and the level value of each received signal.

In the geodetic survey using a GPS, the distance value to the satellite and the level value of the received signal are analyzed. Since this is generally known, a detailed description will be omitted.

The circuit box portion 1100 is configured such that a geosstay antenna 1150 is fixedly installed at a central portion of an upper plane 1130 and a center of gravity is formed at a lower portion and is cylindrical and is received in an empty interior of the cylindrical portion 1110 And a circuit unit for analyzing the GPS signal may be provided. However, if necessary, the circuit part may be provided at another location. The circuit part receives and analyzes the GPS signal broadcasted by the GPS satellite, and includes the latitude, longitude, sea level, and time of the current location And outputs the analyzed values. Such an analysis is well known, so a detailed explanation will be omitted.

The horizontal holding part 1200 is installed on a part of the upper side surface of the circuit box part 1100 in a rotating state to maintain the level of the circuit box part 1100 at a slope and includes a first rotating shaft 1210, A second coaxial shaft 1240, a second rotation hole 1250, a receiving portion 1260, and a frame portion 1270.

The first coaxial shaft 1210 is provided so as to be linearly projected on both sides of the upper side of the cylindrical portion 1110 and rotates the circuit box portion 1100 in a range of 180 degrees in either direction by the lower space of the virtual horizontal plane .

The rotating tongue 1230 has a first rotating hole 1220 in which the first rotating shaft 1210 is inserted in a rotating state in a straight line and forms an inner diameter larger than the outer diameter of the cylindrical portion 1110, Shape.

Since the first rotating shaft 1210 is installed in the first rotating hole 1220 in a state where the first rotating shaft 1220 is inserted into the first rotating shaft 1220, the rotating frame 1230 is installed on the upper portion of the circuit box portion 1100, Can be rotated.

The second coaxial shaft 1240 protrudes in both directions on a straight line perpendicular to the straight line formed by the first turning hole 1220 on the outer peripheral surface of the rotating tent 1230.

The second coaxial shaft 1240 can rotate the tilting frame 1230 in a range of 180 degrees in the other direction by the lower space of the virtual horizontal plane.

That is, the circuit box portion 1100 is rotated by 180 degrees in any one direction of the lower space of the horizontal plane by the first rotating shaft 1210, 180 degrees in the other direction perpendicular to the second rotating shaft 1240 So that it is possible to freely rotate in the range of 360 degrees in the lower space of the virtual horizontal plane.

The second rotation hole 1250 is formed on the upper portion of the receiving portion 1260 and the second rotation shaft 1210 is inserted and installed in a rotating state.

The receiving portion 1260 is formed of two pieces for the left and right sides, and the second rotating hole 1250 is formed at a height that is longer than the length of the cylindrical portion 1110. Although the receiving portion 1260 is shown as a triangle in the drawing, A rod shape, and the like.

The frame part 1270 is fixedly installed on the receiving part 1260 and is generally rectangular in shape, but may have a polygonal shape including a circle.

The fixed holding portion 1300 includes a piston portion 1310, a piston rod portion 1320, and a stable holding portion 1330.

It is quite natural that two fixed holding portions 1300 can be installed at corresponding positions, respectively, and the number of the fixed holding portions 1300 can be increased or decreased as needed.

The piston portion 1310 is configured to drive the drive shaft in a linear direction of forward and reverse by a corresponding control signal from a button, a switch, or the like. Depending on the driving energy source, it may be variously classified into an electric system, an air system, a hydraulic system, or a generally known driving system, but a detailed description thereof will be omitted and any one selected may be used.

The piston rod portion 1320 has a rod shape and is fixed at one end to a drive shaft of the piston portion 1310 so that the drive shaft is driven forward and backward together with the drive shaft being driven forward and backward.

The stabilizing portion 1330 is a plate-like structure having an arc shape that can be closely attached to the outer circumferential surface of the cylindrical portion 1110. The stabilizing portion 1330 is fixed to the other end of the piston rod portion 1320 and the piston rod portion 1320 is moved forward and backward And are driven forward and backward together according to the driving state.

The cylindrical portion 1110 is fixed to the outer peripheral surface of the cylindrical portion 1110 to prevent the cylindrical portion 1110 from moving when the stable holding portion 1330 is driven forward and the cylindrical portion 1110 is freely rotated in the range of 360 degrees when driven backward .

The tripod portion 1400 includes a flat plate portion 1410 and a triangular leg portion 1420.

The flat plate portion 1410 is a flat flat plate and is the same size as the frame portion 1270 and is a device for fixing the frame portion 1270 on the upper side and includes a device that is generally known.

The triangular leg portion 1420 is provided on the lower side of the flat plate portion and includes at least three elastic legs that can be extended or reduced in length, and is generally known, and thus a detailed description thereof will be omitted.

The geophathlon receiver 1000 having the above-described structure can be used in a static positioning system broadcasted from a GPS satellite and using a geosynthetic signal, in which the reference point is installed and the terrain of the site where the observation point is installed is very steep or curved, Even if it is difficult to form a horizontal plane, the horizontal plane can be stably formed easily and quickly.

Therefore, the time required for the static positioning can be shortened, and even the minimum observation time can be quickly installed even in a relatively short area, so that the minimum observation time can be satisfied. Since the geosynthetic signal is accurately received by the formation of the horizontal plane, It has the advantage of higher reliability and accuracy.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art.

1000: GSPS receiver 1100: circuit box part
1110: Cylinder part 1130: Upper side plane
1150: GPS antenna 1200: horizontal holding part
1210: first coaxial shaft 1220: first rotating shaft
1230: Rotating tee 1240: Second coaxial
1250: second rotating hole 1260:
1270: frame part 1300: fixed holding part
1310: Piston part 1320: Piston rod part
1330: Stability maintaining part 1400: Tripod part
1410: flat plate portion 1420: triangular leg portion

Claims (1)

Calculates a proper reception time of a satellite signal received from a plurality of GPS satellites at the same time, receives a satellite signal from a GPS satellite using a reference GPS receiver serving as a reference of measurement and a mobile GPS receiver observing moving objects ; 3D satellite data that can be simultaneously observed using GPS satellite orbital data used to track the change of position of GPS satellites and three-dimensional geographic information data that quantify the uplift of the terrain, undulations of main buildings and facilities, A control unit for analyzing; And an input / output unit for inputting a national reference point or city reference point information on which a GPS reference point, a target point and a reference GPS receiver can be installed, and outputting stable data reception information of each target point calculated by the control unit,
Wherein the control unit further comprises a coordinate transformation module for transforming Almanac data into coordinates based on a geocentric reference coordinate system,
A geodesic satellite signal which is required to receive a radio wave transmitted from four or more identical satellites for a predetermined time or more at the same time in a receiver at two different points erected to measure a precise relative distance between a reference point and a target unknown point, In a survey planning system,
The reference GPS receiver and the mobile GPS receiver
A circuit box portion formed in a cylindrical shape and having a center of gravity at a lower portion thereof and having a ground circuit portion inside an empty cylindrical portion, and a grounding antenna disposed on an upper plane of the cylindrical portion;
A horizontal holding part pivotally installed on a part of an upper side surface of the circuit box part to maintain the horizontal position of the circuit box part at a slope; / RTI >
The horizontal holding portion
A first pivot shaft protruding in a straight line on both sides of the upper side of the cylindrical portion and rotating the circuit box portion in a range of 180 degrees in one direction;
A rotating tether having a first rotating hole in which the first rotating shaft is inserted in a rotating state and formed in a straight line and having an inner diameter larger than an outer diameter of the cylindrical portion and having a circular tapered shape;
A second pivot shaft protruding from the outer peripheral surface of the rotating frame in both directions on a straight line perpendicular to the straight line formed by the first rotating hole;
A second rotating hole for inserting the second rotating shaft in a rotating state;
A support portion formed with the second rotation hole at a height longer than the length of the cylindrical portion; And
A frame portion having a rectangular shape as a whole and fixed to the receiving portion; , ≪ / RTI >
Two fixed portions provided at corresponding positions of the frame portion and fixed to the outer circumferential surface of the cylindrical portion constituting the circuit box portion so as to fix the cylindrical portion so as not to move or to freely rotate; Further comprising:
The fixed holding part
A piston portion for driving the drive shaft in the linear direction of forward and backward by the control signal;
A piston rod part having one end fixed to a drive shaft of the piston part and being driven forward and backward together with a state in which the drive shaft is driven forward and backward;
A stable holding portion which is fixed to the other end of the piston rod portion and has a plate-like shape which is in contact with the outer circumferential surface of the cylindrical portion and has an arc shape; And a geodesic surveying planning system based on precision reception of the geophysical satellite signals.

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