CN111102447B - Device and method for improving erection precision and efficiency of RTK (real time kinematic) reference station - Google Patents

Device and method for improving erection precision and efficiency of RTK (real time kinematic) reference station Download PDF

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Publication number
CN111102447B
CN111102447B CN201911258814.4A CN201911258814A CN111102447B CN 111102447 B CN111102447 B CN 111102447B CN 201911258814 A CN201911258814 A CN 201911258814A CN 111102447 B CN111102447 B CN 111102447B
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movable
base
ring
cavity
movable base
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CN111102447A (en
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邓耀华
余嘉文
姚可星
李伟杰
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Guangdong University of Technology
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Guangdong University of Technology
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
    • F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
    • F16M11/12—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting in more than one direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/18—Heads with mechanism for moving the apparatus relatively to the stand
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
    • G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/42—Determining position
    • G01S19/43—Determining position using carrier phase measurements, e.g. kinematic positioning; using long or short baseline interferometry

Abstract

The application discloses a device and method for promoting RTK reference station erects precision and efficiency, including bearing the base, bearing the base and including fixed base, being provided with the cavity in the fixed base, installing the activity ring in the cavity, install the activity base in the inner ring of activity ring, be provided with on the activity base and be used for installing RTK reference station and highly can adjust the installation interface, wherein, activity ring, activity base can rotate and can fix the position in the cavity, in the inner ring, just the rotation axis of activity ring is perpendicular with the rotation axis of activity base. According to the laser alignment device, the laser ray module is used, on the premise that the level is guaranteed, the laser is aligned to the measuring points, and the centering can be determined, so that the laser alignment device is very accurate and visual; to the centering flattening, tentatively adjust to roughly the level when this application only need expand the tripod for the first time, realize the fine setting by this device again, it is convenient quick to because laser ray module and lantern ring structure have effectively reduced the regulation degree of difficulty, the rate of accuracy of adjustment is high moreover.

Description

Device and method for improving erection precision and efficiency of RTK (real time kinematic) reference station
Technical Field
The application relates to the technical field of communication, in particular to a device and a method for improving the erection precision and efficiency of an RTK reference station.
Background
An RTK (Real-time kinematic) carrier phase differential technology is a differential method for processing carrier phase observed quantities of two measuring stations in Real time, and the carrier phase acquired by a reference station is sent to a user receiver for difference calculation and coordinate calculation, so that the measuring method can obtain centimeter-level positioning accuracy in Real time in the field. But the reference station receiver is used as a 'reference', and the positioning accuracy of the reference station receiver is extremely accurate, so that the user receiver can be ensured to realize centimeter-level positioning accuracy. Therefore, when the measurement is performed, the reference station receiver must be perfectly aligned with the measurement point to ensure the accuracy and precision of the measurement data, regardless of whether the reference station is mounted at a known point.
However, in the conventional reference station erection method, the reference station receiver is mounted on a general tripod, and an operator adjusts the height of the tripod according to his own experience to perform centering and leveling. The field operation environment topography is complicated, and centering flattening degree of difficulty is big, inconvenient, the degree of accuracy is low. Accordingly, there is a need for new types of erection devices and methods.
Disclosure of Invention
The application aims to provide a device and a method for improving the erection precision and efficiency of an RTK reference station, and the device and the method are used for solving the problems of high centering and leveling difficulty and low accuracy rate in the existing RTK reference station erection process.
In order to realize the task, the following technical scheme is adopted in the application:
the utility model provides a device for promoting RTK reference station erects precision and efficiency, is including bearing the base, bearing the base and including fixed base, be provided with the cavity in the fixed base, install the activity ring in the cavity, install the activity base in the inner ring of activity ring, be provided with on the activity base to be used for installing RTK reference station and highly can adjust the installation interface, wherein, activity ring, activity base can rotate and can fix the position in the cavity, in the inner ring, just the rotation axis of activity ring is perpendicular with the rotation axis of activity base.
Furthermore, a laser ray module is arranged at the bottom of the movable base, and the axial direction of laser emitted by the laser ray module is parallel to or coincided with the axial direction of the movable base; and a leveling and calibrating device is arranged on the top surface of the movable base.
Furthermore, the maximum outer diameter of the movable ring is smaller than the minimum inner diameter of the hollow cavity of the fixed base, and the maximum outer diameter of the movable base is smaller than the minimum inner diameter of the inner ring of the movable ring.
Further, the cavity is a circular cavity, and the rotation axis of the movable ring in the cavity is intersected with and perpendicular to the center line of the cavity; the inner ring of the movable ring is of a circular structure, and the rotation axis of the movable base in the inner ring is intersected with and vertical to the central line of the inner ring.
Furthermore, a pair of first shaft holes are symmetrically formed in the inner wall of the cavity of the fixed base, and a pair of first rotating shafts respectively assembled in the pair of first shaft holes is coaxially formed in the outer ring of the movable ring;
the inner wall of the inner ring of the movable ring is symmetrically provided with a pair of second shaft holes, and the outer wall of the movable base is coaxially provided with a pair of second rotating shafts which are respectively assembled in the second shaft holes.
Furthermore, a first fixing device is arranged on the fixing base and comprises a first fastening hole which is formed in the surface of the fixing base and communicated with the first shaft hole, and a first fixing bolt is assembled in the first fastening hole;
the movable ring is provided with a second fixing device, the second fixing device comprises a second fastening hole which is formed in the surface of the movable ring and communicated with the second shaft hole, and a second fixing bolt is assembled in the second fastening hole.
Further, installation interface and the coaxial setting of movable base, installation interface is including fixing the fixed pipe on movable base surface to and the movable assembly of one end is in movable pipe in the fixed pipe, wherein be screw-thread fit between movable pipe and the fixed pipe, the movable pipe is hollow and do not have the top surface.
Furthermore, a concave cavity is formed in the bottom surface of the movable base, and the laser ray module is arranged in the concave cavity; the laser ray module comprises a laser diode, a control switch for controlling the laser diode and a battery compartment for supplying power to the laser diode.
Furthermore, a connecting bearing platform used for being connected with a tripod is distributed on the bottom of the fixed base, and mounting holes are formed in the connecting bearing platform.
Further, when the movable ring and the movable base are adjusted to rotate until the fixed base, the movable ring and the movable base coincide, the upper surface of the fixed base, the upper surface of the movable ring and the upper surface of the movable base are in the same plane.
A method for improving RTK reference station set-up accuracy and efficiency, comprising:
s1, mounting the device on a tripod;
s2, adjusting the movable ring and the movable base to make the upper surface of the fixed base, the upper surface of the movable ring and the upper surface of the movable base basically keep on the same plane;
s3, turning on a control switch in the laser ray module, unfolding a tripod above a known measuring point, and adjusting the tripod to enable the upper surface of the fixed base to be in a horizontal or approximately horizontal state;
s4, respectively adjusting the movable ring and the movable base by using the leveling calibration device so as to enable the upper surface of the movable base to be adjusted to be in a horizontal state;
s5, moving and adjusting the tripod to align the laser emitted by the laser ray module with the measuring point, then finely adjusting the movable base, and fixing the positions of the movable ring and the movable base respectively after confirming leveling and centering;
and S6, mounting the RTK reference station on the mounting interface, adjusting the mounting interface, measuring and recording the height value of the receiver, then closing the control switch, and starting the measurement.
The application has the following technical characteristics:
1. this application is through embedding laser ray module in equipment positive center bottom, under the prerequisite of guaranteeing the level, the centering can be confirmed to the measuring point to laser alignment, and is very accurate directly perceived.
2. For centering and leveling, the traditional method needs to frequently adjust a tripod to ensure the level of the device, and has low efficiency, high difficulty and low accuracy. This application only needs preliminary regulation to roughly the level when launching the tripod for the first time, realizes the fine setting by this device again, and is convenient quick to because laser ray module and lantern ring structure have effectively reduced the regulation degree of difficulty, and the rate of accuracy of adjustment is high moreover.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the apparatus of the present application;
FIG. 2 is a schematic structural view of a fixing base;
FIG. 3 is a schematic structural view of a movable ring;
FIG. 4 is a schematic view of the construction of the movable base portion;
fig. 5 is a schematic bottom view of the device of the present application.
The reference numbers in the figures illustrate: the device comprises a fixed base 1, a movable ring 2, a movable base 3, a mounting interface 4, a fixed tube 41, a movable tube 42, a leveling calibration device 5, a first fixing bolt 6, a second fixing bolt 7, a connecting bearing platform 8, a mounting hole 9, a first shaft hole 10, a second shaft hole 11, a first fastening hole 12, a first rotating shaft 13, a second fastening hole 14, a second rotating shaft 15, a laser ray module 16, a laser diode 17, a battery compartment 18, a control switch 19 and a compartment cover 20.
Detailed Description
The whole thinking of this application is, on current tripod structure's basis, designs a new load-bearing base to original load-bearing platform (the platform at tripod top) on the replacement tripod utilizes the adjustment mechanism on the load-bearing base, combines the characteristics of tripod itself, makes the process of erectting high efficiency and the rate of accuracy of RTK benchmark station high.
As shown in fig. 1 to 5, an embodiment of the present application provides a device for improving the RTK reference station erection accuracy and efficiency, including a bearing base, the bearing base includes a fixed base 1, a cavity is provided in the fixed base 1, a movable ring 2 is installed in the cavity, a movable base 3 is installed in an inner ring of the movable ring 2, and an installation interface 4 for installing the RTK reference station and adjusting the height is provided on the movable base 3, wherein the movable ring 2 and the movable base 3 can rotate in the cavity and the inner ring and can be fixed in position, and the rotation axis of the movable ring 2 is perpendicular to the rotation axis of the movable base 3.
As shown in fig. 1 and 2, the fixed base 1 of the device is used for mounting the device on a tripod, and the mounting position is the top of the tripod to replace the original bearing platform of the tripod; in order to improve the adaptability, the shape of the bearing platform in this embodiment is a rounded triangular structure, which is similar to the shape of the bearing platform; the bottom of the fixed base 1 is distributed with connecting bearing platforms 8 used for being connected with a tripod, the connecting bearing platforms 8 are provided with mounting holes 9, as shown in fig. 1, fig. 2 and fig. 5, in the embodiment, three connecting bearing platforms 8 are provided, the connecting bearing platforms correspond to fixed base plates (members for fixedly mounting a bearing platform at the top of the tripod) on the tripod one by one, the connecting bearing platforms are provided with mounting holes 9 corresponding to the fixed base plates, and the device is firmly mounted on the tripod through fastening bolts; the connecting bearing platform 8 has a certain height to provide enough movement adjusting space for the movable ring 2 and the movable base 3.
The bearing base is internally provided with a cavity, the cavity is used for installing the movable ring 2 and providing space for the rotation of the movable ring 2, so that the movable ring 2 can not touch the inner wall of the cavity in the rotation process. The movable ring 2 in this embodiment is a circular ring structure, and the movable base 3 is installed in the inner ring, and similarly, the movable base 3 does not touch the inner wall of the inner ring in the rotating process, thereby ensuring the rotating and adjusting precision. In order to meet such requirement, the maximum outer diameter of the movable ring 2 is smaller than the minimum inner diameter of the hollow cavity in the fixed base 1, and the maximum outer diameter of the movable base 3 is smaller than the minimum inner diameter of the inner ring of the movable ring 2.
The movable ring 2 is nested in the fixed base 1, and the movable base 3 is nested in the movable ring 2. The movable base 3 is used to mount the RTK reference station through the mounting interface 4, and in order to make the adjustment more convenient, the movable base 3 needs to have adjustment degrees of freedom in a plurality of directions. For this purpose, the movable ring 2 and the movable base 3 are both provided as a rotatable and adjustable structure, in one embodiment of the present application, the cavity is a circular cavity, and the rotation axis of the movable ring 2 in the cavity intersects with and is perpendicular to the center line (axis) of the cavity; the inner ring of the movable ring 2 is a circular structure, and the rotation axis of the movable base 3 in the inner ring is intersected and vertical with the central line (axis) of the inner ring. The rotation axis of the movable ring 2 is perpendicular to the rotation axis of the movable base 3, so that the movable base 3 can be adjusted within a spherical range through the rotation adjustment and matching of the movable ring 2 and the movable base 3, high adjustment precision is achieved, and the movable base 3 can be quickly leveled even in a complex terrain environment.
In one embodiment, as shown in fig. 2 and 3, in order to realize the rotation adjustment of the movable ring 2 and the movable base 3, one of the alternative structures is: a pair of first shaft holes 10 are symmetrically formed in the inner wall of the cavity of the fixed base 1, and a pair of first rotating shafts 13 respectively assembled in the pair of first shaft holes 10 are coaxially formed in the outer ring of the movable ring 2; the pair of first shaft holes 10 and the pair of first rotating shafts 13 are coaxially arranged, and the axis is the rotating axis of the movable ring 2.
The inner wall of the inner ring of the movable ring 2 is symmetrically provided with a pair of second shaft holes 11, and the outer wall of the movable base 3 is coaxially provided with a pair of second rotating shafts 15 which are respectively assembled in the pair of second shaft holes 11. The pair of second shaft holes 11 and the pair of second rotating shafts 15 are coaxially arranged, and the axis is the rotating axis of the movable base 3.
After the movable base 3 is leveled by using the rotating structures of the movable ring 2 and the movable base 3, the positions of the movable ring 2 and the movable base 3 are fixed, and the RTK reference station can be installed and measurement is started. In this embodiment, in order to conveniently fix the movable ring 2 and the movable base 3, a fixing mechanism is provided, as shown in fig. 2 and 3:
the fixing base 1 is provided with a first fixing device, the first fixing device comprises a first fastening hole 12 which is formed in the surface of the fixing base 1 and communicated with the first shaft hole 10, and a first fixing bolt 6 is assembled in the first fastening hole 12; the movable ring 2 is provided with a second fixing device, the second fixing device comprises a second fastening hole 14 which is formed in the surface of the movable ring 2 and communicated with the second shaft hole 11, and a second fixing bolt 7 is assembled in the second fastening hole 14.
Taking the first fixing device as an example, after the position of the movable ring 2 is adjusted, the first fixing bolt 6 is rotated, the first fixing bolt 6 continuously moves towards the first shaft hole 10 in the rotating process, and after contacting the first rotating shaft 13, the first rotating shaft 13 is fixed due to the effect of friction, so that the position of the movable ring 2 is fixed. The fixing process of the movable base 3 is similar and will not be described in detail.
As shown in fig. 4, in the present embodiment, a mounting interface 4 is provided on the upper surface of the movable base 3 for mounting an RTK reference station. Installation interface 4 and the coaxial setting of activity base 3, installation interface 4 is in including fixing the fixed pipe 41 on activity base 3 surface to and the movable assembly of one end is in movable pipe 42 in the fixed pipe 41, wherein be screw-thread fit between movable pipe 42 and the fixed pipe 41, movable pipe 42 is hollow and do not have the top surface. The structure can be well adapted to the connecting solenoid on the RTK base station, and when the RTK base station is installed, the connecting solenoid only needs to be inserted into the movable tube 42 on the installation interface 4. The outer wall of the movable tube 42 and the inner wall of the fixed tube 41 are provided with thread structures which are matched with each other, so that the movable tube 42 can be lifted in a rotating mode to adjust the height of the RTK reference station, small-amplitude height adjustment of the RTK reference station can be realized, the height value of the reference station is set to be rounded, and calculation and processing of subsequent measurement data are facilitated.
Further, in order to fix the connecting screw tube on the RTK reference station, a fixing device is also provided on the movable tube 42, and the fixing device has the same structure as the first fixing device and the second fixing device, and the connecting screw tube is tightly pressed by a bolt to fix the RTK reference station.
As a further optimization of the above technical solution, in order to realize centering and leveling in the adjusting process and further improve the adjusting precision, the bottom of the movable base 3 is provided with a laser ray module 16, and the axial direction of the laser emitted by the laser ray module 16 is parallel to or coincident with the axial direction of the movable base 3, i.e. perpendicular to the bottom surface of the movable base 3; the top surface of the movable base 3 is provided with leveling and calibrating devices 5, wherein the leveling and calibrating devices 5 can be strip-shaped leveling bubbles or round leveling bubbles, and when the strip-shaped leveling bubbles are adopted, at least two leveling bubbles are needed and are respectively parallel to the rotating axes of the movable ring 2 and the movable base 3; when the circular level bubble is adopted, the circular level bubble can be placed at the central position of a good-going area divided by the two rotation axes, so that a good calibration and adjustment effect is achieved.
As shown in fig. 5, a concave cavity is formed on the bottom surface of the movable base 3, and the laser ray module 16 is arranged in the concave cavity; the laser ray module 16 comprises a laser diode 17, a control switch 19 for controlling the laser diode 17, and a battery compartment 18 for supplying power to the laser diode 17; the battery compartment 18 houses batteries and is provided with an openable compartment cover 20 to facilitate battery replacement.
Preferably, a laser diode 17 is mounted in the center of the bottom surface of the movable base 3, emitting laser light perpendicular to the bottom surface of the movable base 3, the laser light being controlled by a control switch 19, in use, to be directed at the measuring point.
As shown in fig. 1, when the movable ring 2 and the movable base 3 are adjusted to rotate until the fixed base 1, the movable ring 2 and the movable base 3 coincide, the upper surface of the fixed base 1, the upper surface of the movable ring 2 and the upper surface of the movable base 3 are in the same plane. For example, the thicknesses of the fixed base 1, the movable ring 2, and the movable base 3 may be made the same, and the rotation axis of the movable ring 2 and the rotation axis of the movable base 3 may pass through the middle of the thicknesses, thereby making the upper surfaces of the three adjustable to the same plane.
On the basis of the technical scheme, the application further provides a method for improving the erection precision and efficiency of the RTK reference station, which comprises the following steps:
and S1, installing the device on a tripod, and replacing the original bearing platform of the tripod to start the erection of the RTK reference station.
S2, adjusting the movable ring 2 and the movable base 3 to make the upper surface of the fixed base 1, the upper surface of the movable ring 2 and the upper surface of the movable base 3 substantially maintain the same plane for subsequent adjustment. The step is a rough adjusting process, the precision is not required, the upper surfaces of the fixed base 1, the movable ring 2 and the movable base 3 are basically in the same plane, an angle error (for example, the error can be within 5 degrees) is allowed among the fixed base, the movable ring and the movable base, and the subsequent adjusting process is not influenced.
And S3, opening the control switch 19 in the laser ray module 16, unfolding a tripod above a known measuring point, and adjusting the tripod to the horizontal or approximately horizontal state of the upper surface of the fixed base 1. After the control switch 19 is turned on, laser is emitted, the tripod is turned on at this time, and the fixed base 1 is adjusted to be approximately horizontal by the adjusting mechanisms on the three legs of the tripod and the leveling and calibrating device 5. The process also does not need to be too precise, the purpose of adjusting the tripod is to perform a preliminary adjustment and then a precise leveling.
S4, the leveling and calibrating device 5 is used to adjust the movable ring 2 and the movable base 3 respectively, so that the upper surface of the movable base 3 is adjusted to be horizontal, i.e. the air bubble in the air level is adjusted to be at the center of the air level, and the upper surface of the movable base 3 is horizontal, which is a precise adjustment process.
And S5, moving and adjusting the tripod to align the laser emitted by the laser ray module 16 with the measuring point, then finely adjusting the movable base 3, confirming that the leveling and centering are carried out, namely the bubble of the level bubble is located in the center, the laser is shot on the measuring point, and fixing the positions of the movable ring 2 and the movable base 3 by using the first fixing device and the second fixing device respectively.
S6, installing the RTK base station on the installation interface 4, namely inserting a standard tool connecting solenoid of the RTK base station into the installation interface 4, and adjusting the height of the installation interface 4 so as to conveniently round the height value of the RTK base station, thereby facilitating subsequent data measurement and calculation; the height value of the receiver is measured and recorded, and then the control switch 19 is closed to start the measurement.
The receiver is at a distance from the ground measuring point, so that the centering is difficult. The centering method is different among operators, greatly influenced by human and environmental factors, not intuitive enough, and thus has low precision and efficiency. According to the device and the method, the laser ray module 16 is embedded in the right center of the equipment, and on the premise of ensuring the level, the laser is aligned with the measuring point to determine the centering, so that the device and the method are very accurate and visual. For leveling, the traditional method needs to frequently adjust a tripod to ensure the leveling of the device, and is low in efficiency. The tripod adjusting device and the tripod adjusting method have the advantages that the tripod can be initially adjusted to be approximately horizontal when being unfolded for the first time, fine adjustment is achieved through the tripod adjusting device, the whole process can be completed within two minutes through actual measurement, and convenience and rapidness are achieved.

Claims (1)

1. A method for improving RTK reference station set-up accuracy and efficiency, comprising:
s1, mounting a device for improving the erecting precision and efficiency of the RTK reference station on a tripod;
the device comprises a bearing base, wherein the bearing base comprises a fixed base (1), a cavity is arranged in the fixed base (1), a movable ring (2) is installed in the cavity, a movable base (3) is installed in an inner ring of the movable ring (2), an installation interface (4) which is used for installing an RTK reference station and can adjust the height is arranged on the movable base (3), the movable ring (2) and the movable base (3) can rotate in the cavity and the inner ring and can be fixed in position, and the rotation axis of the movable ring (2) is vertical to the rotation axis of the movable base (3);
the bottom of the movable base (3) is provided with a laser ray module (16), and the axial direction of laser emitted by the laser ray module (16) is parallel to or coincided with the axial direction of the movable base (3); a leveling and calibrating device (5) is arranged on the top surface of the movable base (3);
the maximum outer diameter of the movable ring (2) is smaller than the minimum inner diameter of the hollow cavity in the fixed base (1), and the maximum outer diameter of the movable base (3) is smaller than the minimum inner diameter of the inner ring of the movable ring (2);
the cavity is a circular cavity, and the rotation axis of the movable ring (2) in the cavity is intersected with and vertical to the central line of the cavity; the inner ring of the movable ring (2) is of a circular structure, and the rotating axis of the movable base (3) in the inner ring is intersected and vertical with the central line of the inner ring;
the inner wall of the cavity of the fixed base (1) is symmetrically provided with a pair of first shaft holes (10), and the outer ring of the movable ring (2) is coaxially provided with a pair of first rotating shafts (13) which are respectively assembled in the pair of first shaft holes (10);
the inner wall of the inner ring of the movable ring (2) is symmetrically provided with a pair of second shaft holes (11), and the outer wall of the movable base (3) is coaxially provided with a pair of second rotating shafts (15) which are respectively assembled in the pair of second shaft holes (11);
the fixing base (1) is provided with a first fixing device, the first fixing device comprises a first fastening hole (12) which is formed in the surface of the fixing base (1) and communicated with the first shaft hole (10), and a first fixing bolt (6) is assembled in the first fastening hole (12);
a second fixing device is arranged on the movable ring (2), the second fixing device comprises a second fastening hole (14) which is formed in the surface of the movable ring (2) and communicated with the second shaft hole (11), and a second fixing bolt (7) is assembled in the second fastening hole (14);
the mounting interface (4) and the movable base (3) are coaxially arranged, the mounting interface (4) comprises a fixed pipe (41) fixed on the surface of the movable base (3) and a movable pipe (42) with one end movably assembled in the fixed pipe (41), the movable pipe (42) is in threaded fit with the fixed pipe (41), and the movable pipe (42) is hollow and has no top surface;
a concave cavity is formed in the bottom surface of the movable base (3), and the laser ray module (16) is arranged in the concave cavity; the laser ray module (16) comprises a laser diode (17), a control switch (19) for controlling the laser diode (17), and a battery compartment (18) for supplying power to the laser diode (17);
when the movable ring (2) and the movable base (3) are adjusted to rotate until the fixed base (1), the movable ring (2) and the movable base (3) are overlapped, the upper surface of the fixed base (1), the upper surface of the movable ring (2) and the upper surface of the movable base (3) are on the same plane;
s2, adjusting the movable ring and the movable base to make the upper surface of the fixed base, the upper surface of the movable ring and the upper surface of the movable base basically keep on the same plane;
s3, turning on a control switch in the laser ray module, unfolding a tripod above a known measuring point, and adjusting the tripod to enable the upper surface of the fixed base to be in a horizontal or approximately horizontal state;
s4, respectively adjusting the movable ring and the movable base by using the leveling calibration device so as to enable the upper surface of the movable base to be adjusted to be in a horizontal state;
s5, moving and adjusting the tripod to align the laser emitted by the laser ray module with the measuring point, then finely adjusting the movable base, and fixing the positions of the movable ring and the movable base respectively after confirming leveling and centering;
and S6, mounting the RTK reference station on the mounting interface, adjusting the mounting interface, measuring and recording the height value of the receiver, then closing the control switch, and starting the measurement.
CN201911258814.4A 2019-12-10 2019-12-10 Device and method for improving erection precision and efficiency of RTK (real time kinematic) reference station Active CN111102447B (en)

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CN103016924A (en) * 2012-12-04 2013-04-03 刘雁春 Measurement tripod with automatic stable-setting function
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