CN217132197U - Hidden point measuring tool based on GPS receiver and range finder - Google Patents

Abstract

The utility model relates to a hidden point measuring tool based on GPS receiver and distancer belongs to the surveying and mapping technology field, and it includes centering rod, the handbook that sets up in the middle part of centering rod and the GPS aircraft nose that sets up on centering rod upper portion, the top of GPS aircraft nose is provided with the support, be provided with two damping axis of rotation on the support, be provided with horizontal bracing piece between two damping axis of rotation, be provided with the distancer on the damping axis of rotation; the damping axis of rotation includes first stationary blade, second stationary blade and perforated plate, be provided with the first fixed axle that the cover has the gasket on the first stationary blade, be provided with the second fixed axle that the cover has the gasket on the second stationary blade, first fixed axle, second fixed axle all run through the perforated plate and with rotate between the perforated plate be connected the both sides of perforated plate all are provided with the gasket. The utility model discloses can conveniently adjust the position of distancer, reduce the manual work again and hold operations such as lifting, improved measurement accuracy.

Description

Hidden point measurement tool based on GPS receiver and rangefinder

technical field

The utility model relates to a hidden point measurement tool based on a GPS receiver and a range finder, and belongs to the technical field of surveying and mapping.

Background technique

With the continuous development of GPS, GALILEO, GLONASS and my country's Beidou navigation and positioning system, GPS receivers based on multiple constellations have been widely used in surveying and mapping. Although the GPS receiver has been widely used in field surveying and mapping, its work originally determined that it cannot be used in places where GPS satellite signals are blocked or where the signal quality is poor. In the actual field surveying and mapping production, the surveyor can only use the total station to supplement the hidden points where there is no GPS satellite signal (such as under the woods and buildings), resulting in the surveyor needing to carry two kinds of equipment (GPS receiver and total station) and switch between two different measuring instruments and technical routes.

The distance meter is also a commonly used measuring instrument in the surveying and mapping industry. Its simple structure and low price are widely used in distance measurement, especially in indoor distance measurement. However, the function of the distance meter is relatively simple, usually as an independent measurement tool. Used alone for distance measurement.

However, the joint use of the rangefinder and the GPS receiver has practical significance (that is, the coordinates of the hidden points are calculated through the positioning measurement of the spatial position of the four groups of points and the measurement of the straight-line distance of the hidden points aiming at the four points), but how to fix the measurement The distance meter and the adjustment of the orientation have always been a difficult problem, because the surveyors need to fix the starting point of the distance meter, fix the sighting orientation and record the data. It is difficult to achieve the desired effect by holding it manually, which reduces the measurement accuracy.

Therefore, the invention requires an improved technology closely related to the state of the art.

SUMMARY OF THE INVENTION

The purpose of the utility model is to overcome the above-mentioned shortcomings, and to provide a hidden point measurement tool based on a GPS receiver and a range finder. The range finder and the GPS head are used in combination with a damping rotating shaft, which can easily adjust the range. The orientation of the instrument can also ensure that the starting position of the rangefinder overlaps with the geometric center of the GPS nose antenna, and at the same time, operations such as manual lifting are reduced, and the measurement accuracy is improved.

According to the technical scheme of the present utility model, the concealed point measurement tool based on the GPS receiver and the range finder includes a centering rod, a handbook arranged in the middle of the centering rod, and a GPS head set on the upper part of the centering rod, The top of the GPS head is provided with a bracket, two damping rotation shafts are arranged on the bracket, a transverse support rod is arranged between the two damping rotation axes, and a range finder is arranged on the damping rotation axis.

As a further improvement of the present invention, the damping rotating shaft includes a first fixed piece, a second fixed piece and a porous plate, the first fixed piece is provided with a first fixed shaft covered with a gasket, the second fixed piece The sheet is provided with a second fixed shaft sleeved with a gasket, the first fixed shaft and the second fixed shaft both pass through the porous plate and are rotatably connected with the porous plate, and the support rod is fixed on the porous plate of the two damping rotating shafts. between the plates; spacers are arranged on both sides of the porous plate.

As a further improvement of the present invention, the first fixing piece on the damping rotating shaft on the left is fixed on the bracket, and the second fixing piece on the damping rotating shaft on the left is used for fixing the range finder.

As a further improvement of the present invention, the second fixing piece on the damping rotating shaft on the right is fixed on the bracket, and the first fixing piece on the damping rotating shaft on the right is used for fixing the range finder.

As a further improvement of the present invention, a support frame is connected to the second fixing piece, and a range finder is fixed on the support frame.

As a further improvement of the present invention, a support frame is connected to the first fixing piece, and a range finder is fixed on the support frame.

As a further improvement of the present invention, a level bubble is arranged in the middle of the centering rod.

As a further improvement of the present invention, the bottom of the centering rod is provided with a centering tip.

The beneficial effects of the present utility model are:

The structure is simple and the operation is convenient. The surveyor only needs to carry a set of equipment to complete the surveying and mapping of the satellite signal high-quality area and the satellite signal poor area (hidden point);

The damping rotating shaft can realize the multi-angle rotation of the rangefinder, and the structure is stable and reliable;

Reduce the invariance brought by manual operation and improve the measurement accuracy;

One measurement trigger can obtain measurement values of four dimensions, data specification, and high efficiency.

Description of drawings

FIG. 1 is a schematic diagram of the overall structure of the present invention.

FIG. 2 is an enlarged view of part A in FIG. 1 .

FIG. 3 is a schematic structural diagram of the damping rotating shaft of the present invention.

FIG. 4 is a usage scene diagram of the present invention.

Description of reference numerals: 1. Centering rod; 2. Handbook; 3. GPS head; 4. Distance meter; 5. Damping rotating shaft; 6. Bracket; 7. Support rod; 8. Supporting frame; 9. Level bubble; 10. Concealed point; 11. Centering point; 12. Visible point; 13. Obstacle; 14. Beidou satellite; 51. The first fixed piece; 52. The second fixed piece; gasket; 55, the first fixed shaft; 56, the second fixed shaft.

Detailed ways

The present invention will be further described below with reference to the embodiments in the accompanying drawings.

As shown in the figure, a hidden point measurement tool based on a GPS receiver and a rangefinder includes a centering pole, a handbook 2 arranged in the middle of the centering pole 1, and a GPS head 3 arranged on the upper part of the centering pole 1, so The top of the GPS head 3 is provided with a bracket 6, two damping rotation shafts 5 are provided on the bracket 6, and a transverse support rod 7 is provided between the two damping rotation shafts 5, and the purpose of the support rod 7 is to keep the two The damping rotating shafts 5 are on the same horizontal line, and at the same time play a fixed role, and a range finder 4 is arranged on the damping rotating shafts 5 .

The damping rotating shaft 5 includes a first fixing piece 51 , a second fixing piece 52 and a porous plate 53 . A second fixed shaft 56 sleeved with a gasket 54 is provided on it. The first fixed shaft 55 and the second fixed shaft 56 both penetrate the porous plate 53 and are rotatably connected with the porous plate 53. The support rod 7 is fixed on the porous plate 53. Between the perforated plates 53 of the two damping rotating shafts 5 ; spacers 54 are provided on both sides of the perforated plates 53 .

The first fixing piece 51 on the damping rotating shaft 5 on the left is fixed on the bracket 6, and the second fixing piece 52 on the damping rotating shaft 5 on the left is used for fixing the rangefinder 4; the A support frame 8 is connected to the second fixing piece 52 , and the range finder 4 is fixed on the support frame 8 .

The second fixing piece 52 on the damping rotating shaft 5 on the right is fixed on the bracket 6, and the first fixing piece 51 on the damping rotating shaft 5 on the right is used to fix the rangefinder 4; the A support frame 8 is connected to the first fixing piece 51 , and the range finder 4 is fixed on the support frame 8 .

The centering rod 1 is provided with a leveling bubble 9 in the middle; the bottom of the centering rod 1 is provided with a centering tip 11 .

The working process and principle of the present utility model are as follows:

Insert the centering rod into the ground, adjust the vertical position of the centering rod through the level bubble, install the rangefinder into the support frame, and manually adjust the position of the rangefinder, the damping rotating shaft will pass through the The friction force fixes the rangefinder, which is convenient for use and recording. The two damping shafts are set opposite to each other. Coordinate location.

As shown in FIG. 4 , when there is an obstacle 13 between the concealed point 10 and the Beidou satellite 14, the data of four dimensions (X, Y, Z, L) can be obtained by measuring the information of the four visible points 12, that is, by one measurement. (X refers to the north coordinate of the starting position of the range finder, Y refers to the east coordinate of the starting position of the range finder, Z refers to the elevation of the starting position of the range finder, L refers to the distance from the starting position of the range finder to the hidden point to be measured straight-line distance).

The measurement method is:

On one of the visible points 12, an instrument is set up, the rangefinder is aimed at the hidden point, the material keyboard is triggered, and the measured values (X1, Y1, Z1, L1) are obtained on the observation handbook. Among them, the three values of X1, Y1 and Z1 are measured by the GPS head 3, and L1 is measured by the rangefinder 4. And so on to complete the material for the other three points.

The 10 coordinates (x, y, z) of the hidden point can be settled by the following equation;

(X ₁ -x) ² +(Y ₁ -y) ² +(Z ₁ -z) ² =L ₁ ²

(X ₂ -x) ² +(Y ₂ -y) ² +(Z ₂ -z) ² =L ₂ ²

(X ₃ -x) ² +(Y ₃ -y) ² +(Z ₃ -z) ² =L ₃ ²

(X ₄ -x) ² +(Y ₄ -y) ² +(Z ₄ -z) ² =L ₄ ²

Solving the equation yields the coordinates of the hidden point 10 .

Claims (8)

1. Hidden point measuring tool based on GPS receiver and distancer, including centering rod, set up handbook (2) at centering rod (1) middle part and set up GPS aircraft nose (3) on centering rod (1) upper portion, its characterized in that, the top of GPS aircraft nose (3) is provided with support (6), be provided with two damping axis of rotation (5) on support (6), be provided with horizontal bracing piece (7) between two damping axis of rotation (5) be provided with distancer (4) on damping axis of rotation (5).

2. The hidden point measuring tool based on the GPS receiver and the distance meter as claimed in claim 1, wherein the damping rotating shaft (5) comprises a first fixing plate (51), a second fixing plate (52) and a porous plate (53), the first fixing plate (51) is provided with a first fixing shaft (55) sleeved with a gasket (54), the second fixing plate (52) is provided with a second fixing shaft (56) sleeved with a gasket (54), the first fixing shaft (55) and the second fixing shaft (56) both penetrate through the porous plate (53) and are rotatably connected with the porous plate (53), and the supporting rod (7) is fixed between the porous plates (53) of the two damping rotating shafts (5); and gaskets (54) are arranged on two sides of the porous plate (53).

3. Blind spot measuring tool based on a GPS receiver and a distance meter according to claim 2, characterized in that the first fixing plate (51) on the left damped turning axle (5) is fixed to the bracket (6) and the second fixing plate (52) on the left damped turning axle (5) is used for fixing the distance meter (4).

4. Blind spot measuring tool based on a GPS receiver and a distance meter according to claim 2, characterized in that the second fixing plate (52) on the right damped turning axle (5) is fixed to the bracket (6) and the first fixing plate (51) on the right damped turning axle (5) is used for fixing the distance meter (4).

5. The GPS receiver and rangefinder based covert point measurement tool of claim 3, wherein a support bracket (8) is attached to said second stationary plate (52), said rangefinder (4) being secured to said support bracket (8).

6. Hidden point measuring tool based on GPS receiver and range finder according to claim 4 characterized by that the first fixed plate (51) is connected with a support frame (8) and the range finder (4) is fixed on the support frame (8).

7. Concealed point measuring tool based on GPS receiver and rangefinder according to claim 1, characterized in that the centering rod (1) is provided with a leveling bubble (9) in its middle.

8. Concealed point measuring tool based on GPS receiver and rangefinder according to claim 1, characterized in that the bottom of the centering rod (1) is provided with a centering tip (11).

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