CN114166130A - A two-corner positioning ranging and height measuring device and measuring method - Google Patents
A two-corner positioning ranging and height measuring device and measuring method Download PDFInfo
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- CN114166130A CN114166130A CN202111473231.0A CN202111473231A CN114166130A CN 114166130 A CN114166130 A CN 114166130A CN 202111473231 A CN202111473231 A CN 202111473231A CN 114166130 A CN114166130 A CN 114166130A
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000005259 measurement Methods 0.000 claims description 25
- 238000012545 processing Methods 0.000 claims description 22
- 238000012360 testing method Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 2
- 230000006872 improvement Effects 0.000 description 7
- 238000013016 damping Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
- G01B11/06—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material
- G01B11/0608—Height gauges
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Abstract
The invention discloses a two-angle positioning distance and height measuring device and a measuring method, wherein the device comprises a tripod, the top of the tripod is fixedly provided with a mounting plate, the mounting plate is provided with a measuring platform capable of horizontally rotating through a first rotating seat, the measuring platform is provided with a first measuring component and a second measuring component, and the first measuring component comprises a first laser sight for aiming at a target object to be measured and a first angle sensor for measuring the elevation angle of the first laser sight; the second measuring assembly comprises a second laser sight used for aiming at the target object to be measured and a second angle sensor used for measuring the horizontal rotating angle of the second laser sight. The invention measures the linear distance and the vertical height of the target object to be measured at any point in space by two-point laser positioning and utilizing a triangulation method, the measuring distance can be as far as kilometers, and the measuring precision is still higher.
Description
Technical Field
The invention relates to the technical field of measurement, in particular to a two-angle positioning distance and height measuring device and a measuring method.
Background
The range finder may be classified into an ultrasonic range finder, an infrared range finder, and a laser range finder. The measuring range of ultrasonic ranging is limited, the measuring range of the laser range finder can be large, but along with the increase of the distance, the requirement on the laser intensity is high, the price is high, the measuring precision is obviously reduced, and the strong laser can also hurt human eyes. Moreover, the single laser beam can only measure the distance and cannot measure the height of the target at the same time. The total station mainly utilizes an infrared light sensor to realize distance measurement, an infrared transmitter transmits infrared beams according to a certain angle, the beams can be reflected after meeting a target object, the reflected infrared beams can obtain an offset value L after being detected by a CCD detector, and the distance from the sensor to the target object is calculated by utilizing a triangular relation. The infrared sensor is used for ranging, the nonlinear characteristic is obvious when the infrared sensor is close to a target object, the measurement error is large, the infrared sensor is insensitive to the response of the target object with weak reflection, and large errors are easily introduced.
Disclosure of Invention
In order to solve the technical problems, the invention provides a two-angle positioning distance and height measuring device and a measuring method.
The first technical scheme adopted by the invention is as follows: a two-angle positioning distance and height measuring device comprises a tripod, wherein a mounting plate is fixed at the top of the tripod, a measuring platform capable of horizontally rotating is arranged on the mounting plate through a first rotating seat, a first measuring assembly and a second measuring assembly are arranged on the measuring platform, the first measuring assembly comprises a first laser sighting device and a first angle sensor, the first laser sighting device is rotatably arranged on the measuring platform through a second rotating seat, and the first laser sighting device can rotate in a vertical plane A around a first rotating shaft arranged on the second rotating seat; the first angle sensor is arranged on the first laser sight and used for measuring the vertical rotation angle of the first laser sight; the second measuring assembly comprises a second laser sight and a second angle sensor, the second laser sight is rotatably arranged on the measuring platform through a third rotating seat, the second laser sight is driven by the third rotating seat to horizontally rotate and can rotate around a second rotating shaft arranged on the third rotating seat in a vertical plane B, the vertical plane A is always perpendicular to the front and rear lines of the measuring platform, and the vertical plane B is driven by the third rotating seat to horizontally rotate; the second angle sensor is arranged on the second laser sighting device and used for measuring the horizontal rotation angle of the second laser sighting device; in the installation state, the central axes of the first rotating shaft and the second rotating shaft are collinear and parallel to the front edge line and the rear edge line of the measuring platform.
The second technical scheme adopted by the invention is an improvement on the basis of the first technical scheme, and the second technical scheme adopted by the invention is as follows: the second swivel mount includes fixing base, fixed mounting at the U-shaped support at fixing base top and rotationally the level pass the first pivot of U-shaped rotating turret both sides wall, and the bottom of first laser sight is equipped with first journal stirrup, and the fixed suit of first journal stirrup rotates with first pivot synchronization in first pivot.
The third technical scheme adopted by the invention is an improvement on the basis of the first technical scheme, and the third technical scheme adopted by the invention is as follows: the third swivel mount includes the swivel mount body, fixes the U-shaped rotating turret at swivel mount body rotating part top and rotationally the level passes the second pivot of U-shaped support both sides wall, and the bottom of second laser sight is equipped with the second journal stirrup, and the fixed suit of second journal stirrup is rotated with the second pivot is synchronous.
The fourth technical scheme adopted by the invention is an improvement on the basis of the first technical scheme, and the fourth technical scheme adopted by the invention is as follows: the measuring platform is provided with a level gauge, and a leveling screw is arranged between the mounting plate and the measuring platform.
The fifth technical scheme adopted by the invention is an improvement on the basis of the first or fourth technical scheme, and the fifth technical scheme adopted by the invention is as follows: the first measuring assembly further comprises a laser range finder which is fixedly mounted on the first laser sight.
The sixth technical scheme adopted by the invention is an improvement on the basis of the fifth technical scheme, and the sixth technical scheme adopted by the invention is as follows: the measuring platform is also provided with a storage battery and a controller, the controller comprises a shell, a display screen and a mode change-over switch are arranged on the outer side of the shell, a central processing unit is arranged in the shell, and the central processing unit is respectively connected with the display screen, the mode change-over switch, the laser range finder, the first laser sight, the first angle sensor, the second laser sight and the second angle sensor; the storage battery is used for supplying power to the controller.
A measuring method for the two-angle positioning distance and height measuring device in the first technical scheme comprises the following steps:
7.1) leveling the measuring platform;
7.2) adjusting the elevation angle of the first laser sight while horizontally rotating the measuring platform to enable the first laser sight to be aligned with a target object to be measured; recording the elevation angle alpha of the first laser sight measured by the first angle sensor;
7.3) horizontally rotating the second laser sight and simultaneously adjusting the elevation angle of the second laser sight to enable the second laser sight to be aligned with the target object to be measured; recording a horizontal rotation angle theta 1 of a second laser sight measured by a second angle sensor;
7.4) at this time, a right-angled triangle is formed by connecting lines among the first laser sight, the second laser sight and the target object to be measured; observing from top to bottom, wherein the distance from the first laser sight to the second laser sight is L, the distance from the first laser sight to the target object to be measured is S1, and the included angle between the second laser sight and the side line of the measuring platform is theta;
calculating a linear distance S from the target object to be measured to the first laser sight and a vertical distance h from the target object to be measured to a horizontal plane of the first laser sight according to the following formula:
S＝S1/cosα (1)
S1＝L*tanθ (2)
h＝S1*tanα (3)
in the formula:
s1 is the projection length of the straight line distance from the target object to be measured to the first laser sight on the horizontal plane;
l is the distance between the first laser sight and the second laser sight;
θ＝90°-θ1。
a measurement method for the two-angle positioning distance and height measuring device in the sixth technical scheme comprises the following steps:
8.1) leveling the measuring platform;
8.2) clicking a mode change-over switch to select a measurement mode;
8.3) when the first measurement mode is selected, adjusting the elevation angle alpha of the first laser sight while horizontally rotating the measurement platform, so that the first laser sight is aligned to the target object to be measured; at the moment, the first angle sensor measures the elevation angle alpha of the first laser sight and transmits the measured angle value to the central processing unit, the laser range finder directly measures the linear distance S from the target test object to the first laser sight and transmits the measured distance value to the central processing unit, the central processing unit calculates the vertical height h corresponding to the target test object according to the following formula, and the height value h and the linear distance S are displayed on the display screen;
h＝S*sinα (4)
8.4) when the second measurement mode is selected, the following steps are included:
8.4.1) adjusting the elevation angle of the first laser sight while horizontally rotating the measuring platform to enable the first laser sight to be aligned with the target object to be measured; the first angle sensor measures the elevation angle alpha of the first laser sight and transmits the measured value to the central processing unit;
8.4.2) horizontally rotating the second laser sight and simultaneously adjusting the elevation angle of the second laser sight to enable the second laser sight to be aligned with the target object to be measured; the second angle sensor measures the horizontal rotation angle theta 1 of the second laser sighting device and transmits the measured value to the central processing unit;
8.4.3) at this time, a right-angled triangle is formed by connecting lines among the first laser sight, the second laser sight and the target object to be measured; observing from top to bottom, wherein the distance from the first laser sight to the second laser sight is L, the distance from the first laser sight to the target object to be measured is S1, and the included angle between the second laser sight and the side line of the measuring platform is theta;
the central processing unit calculates a linear distance S from the target object to be measured to the first laser sight and a vertical distance h of the target object to be measured relative to a horizontal plane where the first laser sight is located according to the following formula, and displays the linear distance S and the vertical distance h in the display screen;
S＝S1/cosα (1)
S1＝L*tanθ (2)
h＝S1*tanα (3)
in the formula:
s1 is the projection length of the straight line distance from the target object to be measured to the first laser sight on the horizontal plane;
l is the distance between the first laser sight and the second laser sight;
θ＝90°-θ1。
the invention has the beneficial effects that:
1. the invention measures the linear distance and the vertical height of the target object to be measured at any point in space by two-point laser positioning and utilizing a triangulation method, the measuring distance can be as far as kilometers, and the measuring precision is still higher.
2. The invention is provided with two measuring modes, the first measuring mode can directly measure the linear distance of the target object to be measured through the laser range finder, and the vertical height is calculated according to the elevation angle of the laser sighting device. The second measurement mode utilizes the triangulation location method to measure the height, and the measurement distance is far, and measurement accuracy is high.
Drawings
Fig. 1 is a schematic structural diagram of a two-angle positioning distance and height measuring device of the present invention.
Fig. 2 is a side view of fig. 1.
Fig. 3 is a top view of fig. 1.
Fig. 4 is a schematic control structure diagram of a two-angle positioning distance and height measuring device of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail and fully with reference to the accompanying drawings and a preferred embodiment.
Example 1
Referring to fig. 1 to 3, the present embodiment provides a two-angle positioning distance and height measuring device, including a tripod 1, a mounting plate 2 is fixed on the top of the tripod 1, a measuring platform 4 capable of horizontally rotating is arranged on the mounting plate 2 through a first swivel mount 3, a first measuring assembly and a second measuring assembly are arranged on the measuring platform 4, the first measuring assembly includes a first laser sight 81 and a first angle sensor 82, the first laser sight 81 is rotatably arranged on the measuring platform 4 through a second swivel mount 5, and the first laser sight can rotate in a vertical plane a around a first rotating shaft 51 arranged on the second swivel mount 5; a first angle sensor 62 is mounted on the first laser sight 61 for measuring a vertical angle of rotation of the first laser sight; the second measuring assembly comprises a second laser sight 81 and a second angle sensor 82, the second laser sight 81 is rotatably arranged on the measuring platform 4 through a third swivel mount 7, the second laser sight 81 is driven by the third swivel mount 7 to horizontally rotate and can rotate around a second rotating shaft 71 arranged on the third swivel mount 7 in a vertical plane B, the vertical plane A is always perpendicular to the front and rear lines of the measuring platform 4, and the vertical plane B is driven by the third swivel mount 7 to horizontally rotate; a second angle sensor 82 is mounted on the second laser sight 81 for measuring the horizontal rotation angle of the second laser sight 81; in the mounted state, the central axes of the first rotating shaft 51 and the second rotating shaft 71 are collinear and parallel to the front and rear lines of the measuring platform.
Tripod 1 is prior art, including the fixed plate with articulate three stabilizer blade in the fixed plate below, through the level of the adjustable fixed plate of the angle of opening of adjusting three stabilizer blade.
In the present embodiment, the mounting plate 2 is circular and is fixed to the fixing plate of the tripod 1 by screws for supporting the measuring platform 4. First pivot 3 is prior art, including first base and the first supporting shaft of locating in the base of rotation, first base passes through the fix with screw on mounting panel 2, and the top fixed connection of first supporting shaft supports the bottom central part of measuring platform 4.
Three leveling screws 9 which are arranged in a triangular shape are arranged between the outer edge part of the bottom of the measuring platform 4 and the mounting plate 2, and the level of the measuring platform 4 is adjusted by adjusting the heights of the leveling screws 9. The upper surface of the adjusting measuring platform 4 is provided with a level gauge. The measuring platform 4 is rectangular, and the front and rear lines thereof are parallel.
In this embodiment, the second rotary base 5 includes a fixing base, a U-shaped bracket fixedly installed on the top of the fixing base, and a first rotary shaft 51 rotatably and horizontally passing through two side walls of the U-shaped bracket, a first lug is disposed at the bottom of the first laser sight 61, and the first lug is fixedly sleeved on the first rotary shaft 51 and rotates synchronously with the first rotary shaft. The first laser sight 61 is always perpendicular to the front and rear lines of the measuring platform 2, but can perform a raising or tilting motion in the vertical plane a perpendicular to the measuring platform 2 through the first rotating shaft 51.
In this embodiment, the third swivel mount 7 includes the swivel mount body, U-shaped rotating turret and second pivot 71, the structure of swivel mount body is the same with first swivel mount 3, locate the second back shaft in the second base including the second base with rotating, the second base passes through screw fixed mounting on measuring platform 4, the upper end of second back shaft stretches out fixed connection U-shaped rotating turret from the second base, the U-shaped rotating turret is rotationally located in second pivot 71, the bottom of second laser sight 81 is equipped with the second journal stirrup, the fixed suit of second journal stirrup is on second pivot 71 with the synchronous rotation of second pivot. The second laser sight 81 can be driven by the third rotation base 7 to rotate horizontally, and can make a raising or tilting motion in the vertical plane B through the second rotation shaft 71, and the vertical plane B can be driven by the third rotation base 7 to rotate horizontally.
In this embodiment, only one embodiment of the first, second and third transpositions is shown, and transpositions of other structural forms that can achieve the functions of the present application in the prior art are also applicable to the present invention. In addition, in order to keep the rotating measuring platform or the second laser sighting device at a set position, damping is arranged between the rotating shaft and the base of the first rotating seat and the second rotating seat, and the damping is used for increasing the friction force between the rotating shaft and the base.
A measuring method for the two-angle positioning distance and height measuring device in embodiment 1 comprises the following steps:
1.1) the leveling screw 9 is adjusted by observing the level meter, so that the measuring platform 4 is horizontally arranged;
1.2) horizontally rotating the measuring platform 4, and simultaneously adjusting the elevation angle of the first laser sight 61 to enable the first laser sight 61 to be aligned with the target object to be measured 12; recording the elevation angle α of the first laser sight 61 measured by the first angle sensor 62, assuming α is 60 °;
1.3) horizontally rotating the second laser sight 81 and simultaneously adjusting the elevation angle of the second laser sight 81 to enable the second laser sight 81 to be aligned with the target object to be measured 12; recording the horizontal rotation angle θ 1 of the second laser sight 81 measured by the second angle sensor 82, assuming that θ 1 is 5 °;
1.4) observing from top to bottom, wherein a connecting line between the first laser sight 61, the second laser sight 81 and the target object to be measured 12 forms a right-angled triangle; the distance L from the first laser sight 61 to the second laser sight 81 is 0.4m, the distance from the first laser sight 61 to the target object 12 to be measured is S1, and the included angle θ between the second laser sight 81 and the side line of the measuring platform 4 is 85 °;
calculating a linear distance S from the target object to be measured to the second laser sight and a vertical distance h of the target object to be measured relative to a horizontal plane where the first laser sight is located according to a formula (1), a formula (2) and a formula (3) as follows:
S1＝L*tanθ＝0.4*tan85°＝4.57m (1)
S＝S1/cosα＝4.57/cos60°＝9.14m (2)
h＝S1*tanα＝4.57*tan60°＝7.92m (3)
example 2
Referring to fig. 1 and 4, embodiment 2 is substantially the same as embodiment 1 except that:
the first measuring assembly further comprises a laser rangefinder (not shown in the figures) fixedly mounted on the first laser sight 61.
The measuring platform 4 is also provided with a storage battery (not shown in the figure) and a controller 10, the controller comprises a shell, the outer side of the shell is provided with a display screen 11 and a mode switch 9, the shell is internally provided with a central processing unit, and the central processing unit is respectively connected with the display screen 11, the mode switch 9, a laser range finder, a first laser sight 61, a first angle sensor 62, a second laser sight 81 and a second angle sensor 82; the battery 9 is used to supply power to the controller 10.
A measuring method for the two-angle positioning distance and height measuring device in embodiment 2 comprises the following steps:
2.1) the leveling screw 9 is adjusted by observing the level meter, so that the measuring platform 4 is horizontally arranged;
2.2) clicking a mode change-over switch to select a measurement mode;
2.3) when the first measurement mode is selected, the elevation angle α of the first laser sight 61 is adjusted while horizontally rotating the measurement platform 4, assuming α is 60 °; aligning a first laser sight to a target object to be measured; at this time, the first angle sensor 62 measures the elevation angle value of the first laser sight and transmits the measured angle value to the central processing unit, the laser range finder directly measures the linear distance S from the target test object 12 to the first laser sight 61, if S is 9.14m, and transmits the measured distance value to the central processing unit, the central processing unit calculates the vertical height h corresponding to the target test object according to the formula (4), and displays the height value h is 4.57m and the linear distance S is 9.14m on the display screen;
h＝S*sinα＝9.14*sin60°＝4.57m (4)
2.4) when the second measurement mode is selected, the steps are basically the same as those of the embodiment 1, except that the data recording and calculation are completed by the central processing unit, and the central processing unit displays the height value h and the linear distance S on the display screen.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and the improvements and modifications are also within the protection scope of the present invention.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111473231.0A CN114166130A (en) | 2021-12-02 | 2021-12-02 | A two-corner positioning ranging and height measuring device and measuring method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111473231.0A CN114166130A (en) | 2021-12-02 | 2021-12-02 | A two-corner positioning ranging and height measuring device and measuring method |
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| CN114166130A true CN114166130A (en) | 2022-03-11 |
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| CN202111473231.0A Withdrawn CN114166130A (en) | 2021-12-02 | 2021-12-02 | A two-corner positioning ranging and height measuring device and measuring method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107421433A (en) * | 2017-08-01 | 2017-12-01 | 深圳麦格动力技术有限公司 | A kind of current vortex sensor and its processing technology |
| CN114964011A (en) * | 2022-05-16 | 2022-08-30 | 国网冀北电力有限公司廊坊供电公司 | Laser altimeter based on imaging of object to be measured and measuring method |
-
2021
- 2021-12-02 CN CN202111473231.0A patent/CN114166130A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107421433A (en) * | 2017-08-01 | 2017-12-01 | 深圳麦格动力技术有限公司 | A kind of current vortex sensor and its processing technology |
| CN114964011A (en) * | 2022-05-16 | 2022-08-30 | 国网冀北电力有限公司廊坊供电公司 | Laser altimeter based on imaging of object to be measured and measuring method |
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Application publication date: 20220311 |