CN116878543B - Measuring system and measuring method for installation reference of inclination sensor of photoelectric theodolite - Google Patents
Measuring system and measuring method for installation reference of inclination sensor of photoelectric theodolite Download PDFInfo
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- CN116878543B CN116878543B CN202311140733.0A CN202311140733A CN116878543B CN 116878543 B CN116878543 B CN 116878543B CN 202311140733 A CN202311140733 A CN 202311140733A CN 116878543 B CN116878543 B CN 116878543B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C25/00—Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C1/00—Measuring angles
- G01C1/02—Theodolites
Abstract
The invention relates to the technical field of optical measurement, in particular to a measurement system and a measurement method for an installation reference of an inclination sensor of an optoelectronic theodolite. The measuring system comprises a lifting table, a first total station, a first reflecting mirror, an electronic level meter, a second reflecting mirror, a photoelectric theodolite, a second total station and a tripod, and the measuring method comprises the steps of constructing the measuring system, measuring and calculating the installation reference of the inclination sensor, adjusting the measuring system until the pitching reference angle of the inclination sensor is smaller than a preset value, and installing the inclination sensor on an installation base of the inclination sensor. The measuring method of the installation reference of the inclination sensor of the photoelectric theodolite, provided by the invention, does not need to process a tooling with a complex structure, does not depend on the arrangement position precision of the total station, has small occupied space, and can realize high-precision, simple and efficient installation reference measurement of the inclination sensor.
Description
Technical Field
The invention relates to the technical field of optical measurement, in particular to a measurement system and a measurement method for an installation reference of an inclination sensor of an optoelectronic theodolite.
Background
In order to adapt to multi-point, dense and environment-complex shooting range test tasks, the traditional fixed station photoelectric theodolite floor working mode can not meet the observation requirement, the vehicle-mounted motor-driven non-floor measuring working mode becomes the development direction of a new generation photoelectric theodolite, and the supporting rigidity of the landing leg of the non-floor working mode is limited and is sensitive to self and external environment changes, so that the theodolite can incline during working, and the measurement precision is insufficient. Therefore, a pair of uniaxial orthogonal inclination sensors needs to be additionally installed, and the measurement parameters (azimuth angle and pitch angle) of the electro-optic theodolite are corrected based on the inclination values obtained by the two inclination sensors, so that the measurement accuracy of a non-falling working mode is ensured.
The inclination sensor is usually installed on a fixed base below a turntable of the photoelectric theodolite, one inclination sensor is respectively installed on the end face and the side face of the base, the two inclination sensors are mutually perpendicular, and the installation position of the inclination sensor plays a key role in parameter correction relative to the azimuth reference angle and the pitching reference angle (hereinafter referred to as installation references) of the photoelectric theodolite, so that the installation references need to be accurately measured when the inclination sensor is installed.
The current schemes for measuring the installation standard mainly comprise the following two types:
scheme 1: the installation position is provided with a collimator point light source parallel to the inclination sensor shaft, a combined polyhedron and a reflecting mirror are erected between the installation position of the inclination sensor and the visual axis of the theodolite to form a light path, light is transmitted into the visual field of the photoelectric theodolite, and the installation reference is measured by judging the image of the collimator point light source on the photoelectric theodolite and the angle value of the encoder.
Scheme 2: the method comprises the steps that a total station and a high-level light source are respectively erected on two sides of a photoelectric theodolite, the installation position of the total station aiming inclination sensor and the high-level light source are utilized to ensure that the total station and the high-level light source correspond to the same azimuth angle of the total station, then the photoelectric theodolite is utilized to aim at the high-level light source for reference measurement, the total station in the scheme is required to observe the installation position of the inclination sensor at the bottom of the photoelectric theodolite, the high-level light source is required to be positioned in a field of view observed by the total station and cannot be shielded by the large-scale photoelectric theodolite, therefore, the distance between the arrangement position of the high-level light source or the total station and the photoelectric theodolite is far, a large measurement space is required, the requirement on the relative position precision of the arrangement of the high-level light source and the total station is high, the space arrangement of the large-scale photoelectric theodolite is difficult, and the application of the scheme is limited.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a measuring system and a measuring method for an installation reference of an inclination sensor of a photoelectric theodolite, which can realize high-precision, simple and efficient installation reference measurement of the inclination sensor without processing a complex structure tool and without depending on the arrangement position precision of a total station.
In order to achieve the above purpose, the present invention adopts the following specific technical scheme:
the invention provides a measuring system for an inclination sensor installation reference of an optoelectronic theodolite, which comprises an inclination sensor installation base, a lens cone and a leveling mechanism, wherein an assembly reference surface of the lens cone is a four-way end surface, and the inclination sensor installation base comprises an inclination sensor installation base end surface and an inclination sensor installation base side surface;
the measuring system comprises a lifting table, a first total station, a first reflecting mirror, an electronic level meter, a second reflecting mirror, a second total station and a tripod;
the electronic level gauge is arranged on the photoelectric theodolite and is used for assisting the leveling mechanism to adjust the photoelectric theodolite to be horizontal; the first reflecting mirror is adhered to the end face of the installation base of the inclination sensor, and the second reflecting mirror is adhered to the end face of the four-way joint; the lifting table is arranged near the first reflecting mirror, the first total station is arranged on the lifting table, and the central height of the first total station is adjusted by adjusting the height of the lifting table; the tripod is arranged near the second reflecting mirror, the second total station is arranged on the tripod, and the center height of the second total station is adjusted by adjusting the height of the tripod.
Further, the precision of the first total station and the second total station is 1', the precision of the electronic level is 0.2', the adjustable stroke of the lifting table is 0.2m, the height of the tripod is 1.6m, and the diameters of the first reflecting mirror and the second reflecting mirror are 60mm.
The invention provides a method for measuring an installation reference of an inclination sensor of a photoelectric theodolite, which comprises the following steps:
s1, building the measuring system;
s2, measuring and calculating an installation reference of the inclination sensor by using a measuring system, wherein the installation reference comprises a pitching reference angle and an azimuth reference angle of the inclination sensor;
s3, adjusting the measurement system until the pitching reference angle is smaller than a preset value;
and S4, installing the inclination sensor on the inclination sensor installation base.
Further, in step S1, the construction of the measurement system includes the following steps:
s11, wiping the end face of the inclination sensor mounting base, the side face of the inclination sensor mounting base, the four-way end face, the front face of the first reflecting mirror and the front face of the second reflecting mirror to remove attached dust or impurities;
s12, adhering the first reflecting mirror to the end face of the inclination sensor mounting base, and adhering the second reflecting mirror to the end face of the four-way joint;
s13, adjusting the photoelectric theodolite to be horizontal by utilizing an electronic level meter and a leveling mechanism;
s14, adjusting the pitching angle of the visual axis of the photoelectric theodolite to 0 degrees, and rotating the azimuth angle of the visual axis to an external normal line beyond the end surface of the installation base of the inclination sensor, so as to ensure that the first total station and the second total station have enough aiming space when the installation base of the inclination sensor is measured;
s15, placing a lifting table near the first reflecting mirror, placing a first total station on the lifting table, roughly adjusting the height of the lifting table until the central height of the first total station is close to the central height of the first reflecting mirror, and then leveling the first total station;
s16, placing the tripod near the second reflecting mirror, installing the second total station on the tripod, roughly adjusting the height of the tripod until the central height of the second total station is close to the central height of the second reflecting mirror, and then leveling the second total station.
Further, in steps S13, S15 and S16, the leveling errors of the leveling electro-optic theodolite, the first total station and the second total station are all less than 1 ".
Further, in step S2, measuring and calculating the installation reference of the tilt sensor using the measuring system includes the steps of:
s21, adjusting pitch angles of the first total station and the second total station to 0 degrees, starting an auto-collimation light source of the first total station and the second total station, aligning the first total station with a first reflecting mirror, and aligning the second total station with a second reflecting mirror;
s22, adjusting the vertical axes and the pitching axes of the first total station and the second total station so that the return images of the auto-collimation light sources of the first total station and the second total station are respectively positioned at the center of the field of view;
s23, reading an azimuth pointing angle A1 and a pitching pointing angle E1 of the first total station; reading an azimuth pointing angle A2 and a pitching pointing angle E2 of the second total station; reading an azimuth pointing angle A0 of the photoelectric theodolite;
s24, adjusting angles of the first total station and the second total station to enable the first total station and the second total station to be in visual contact, observing return images in respective fields of view, and finely adjusting vertical axes and pitching axes of the first total station and the second total station to enable the return images to be located in respective field of view centers;
s25, reading the adjusted azimuth pointing angle A1 'of the first total station and the adjusted azimuth pointing angle A2' of the second total station;
s26, calculating a pitching reference angle and an azimuth reference angle of the inclination sensor, wherein the pitching reference angle isAzimuth reference angle->。
Further, in step S3, the specific process of adjusting the measurement system until the pitch reference angle of the tilt sensor is smaller than the preset value is as follows:
and (3) according to the pitch reference angle calculated in the step (S2), if the pitch reference angle is larger than 5 ', adjusting the pitch reference angle by adding a shim on the rear side of the bolt of the inclination sensor mounting base, and repeating the steps (S2-S3) after adjustment until the pitch reference angle of the inclination sensor is smaller than 5'.
Further, in step S4, the specific procedure of installing the tilt sensor on the tilt sensor installation base is as follows:
and detaching the first reflecting mirror and the second reflecting mirror, and respectively installing a single-shaft inclination angle sensor on the end surface of the inclination angle sensor installation base and the side surface of the inclination angle sensor installation base.
The invention can obtain the following technical effects:
according to the measuring system and the measuring method for the installation reference of the inclination sensor of the photoelectric theodolite, provided by the invention, no complex structure tool is required to be processed, the two total stations are distributed nearby the photoelectric theodolite to measure the azimuth reference angle and the elevation reference angle, the arrangement position precision of the total stations is not depended, the occupied space is small, and the high-precision, simple and efficient installation reference measurement of the inclination sensor can be realized.
Drawings
Fig. 1 is a schematic structural diagram of a measurement system for an installation reference of an inclination sensor of an electro-optic theodolite according to an embodiment of the present invention.
Fig. 2 is a schematic structural view of a tilt sensor mounting base provided according to an embodiment of the present invention.
Wherein reference numerals include:
elevating platform 1, first total station 2, first speculum 3, inclination sensor mount pad 4, electron level 5, second speculum 6, lens cone 7, cross terminal surface 8, photoelectric theodolite 9, second total station 10, tripod 11, leveling mechanism 12, inclination sensor mount pad terminal surface 13, inclination sensor mount pad side 14, bolt 15, visual axis OO ', cross terminal surface 8's normal CD, inclination sensor mount pad terminal surface 13's outer normal C' B ', first total station 2 and second total station 10 wiring direction B' D.
Detailed Description
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the following description, like modules are denoted by like reference numerals. In the case of the same reference numerals, their names and functions are also the same. Therefore, a detailed description thereof will not be repeated.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limiting the invention.
The embodiment of the invention provides a measuring system for an inclination sensor installation reference of an optoelectronic theodolite, wherein fig. 1 shows the structure of the measuring system, the measuring system comprises a lifting table 1, a first total station 2, a first reflecting mirror 3, an electronic level 5, a second reflecting mirror 6, an optoelectronic theodolite 9, a second total station 10 and a tripod 11, the optoelectronic theodolite 9 comprises an inclination sensor installation base 4, a lens barrel 7 and a leveling mechanism 12, an assembly reference surface of the lens barrel 7 is a four-way end surface 8, the inclination sensor installation base 4 comprises an inclination sensor installation base end surface 13 and an inclination sensor installation base side surface 14, and fig. 2 shows the structure of the inclination sensor installation base 4.
The electronic level 5 is arranged on the electro-optic theodolite 9 and is used for assisting the leveling mechanism 12 in adjusting the electro-optic theodolite 9 to be horizontal. The first reflecting mirror 3 is adhered to the end face 13 of the inclination sensor mounting base, and the second reflecting mirror 6 is adhered to the four-way end face 8. The elevating platform 1 is arranged near the first reflecting mirror 3, the first total station 2 is arranged on the elevating platform 1, and the central height of the first total station 2 is adjusted by adjusting the height of the elevating platform 1. A tripod 11 is provided near the second reflecting mirror 6, and the second total station 10 is mounted on the tripod 11, and the center height of the second total station 10 is adjusted by adjusting the height of the tripod 11.
The metering certificates of the first total station 2, the second total station 10 and the electronic level 5 are in a qualified period, the precision of the first total station 2 and the second total station 10 is 1', the precision of the electronic level 5 is 0.2', the adjustable stroke of the lifting table 1 is 0.2m, the height of the tripod 11 is 1.6m, and the diameters of the first reflecting mirror 3 and the second reflecting mirror 6 are 60mm.
The embodiment of the invention provides a method for measuring an installation reference of an inclination sensor of an optoelectronic theodolite, which comprises the following steps:
s1, building a measuring system of the installation standard of the inclination sensor of the photoelectric theodolite.
The construction of the measurement system comprises the following steps:
s11, wiping the end face 13 of the inclination sensor mounting base and the side face 14 of the inclination sensor mounting base, then wiping the four-way end face 8, and then wiping the front faces of the first reflecting mirror 3 and the second reflecting mirror 6 to remove attached dust or impurities.
S12, uniformly coating a small amount of glue on the back surfaces of the first reflecting mirror 3 and the second reflecting mirror 6, bonding the first reflecting mirror 3 on the end surface 13 of the inclination sensor mounting base, and bonding the second reflecting mirror 6 on the four-way end surface 8.
The normal CD of the four-way end face 8 can be regarded as being parallel to the optical axis OO', and the four-way end face 8 is an assembly reference plane of the lens barrel 7, and the flatness and the perpendicularity meet the requirements.
S13, the photoelectric theodolite 9 is adjusted to be horizontal by utilizing the electronic level meter 5 and the leveling mechanism 12, and the leveling error is controlled within 1'.
S14, adjusting the pitching angle of the visual axis of the photoelectric theodolite 9 to 0 degrees, and rotating the azimuth angle of the visual axis OO ' anticlockwise to be offset by about 60 degrees beyond the outer normal C ' B ' of the end face 13 of the inclination sensor mounting base, so as to ensure that the first total station 2 and the second total station 10 have enough aiming space in the subsequent mounting reference measurement.
S15, placing the lifting platform 1 near the first reflecting mirror 3, then placing the first total station 2 on the lifting platform 1, roughly adjusting the height of the lifting platform 1 until the central height of the first total station 2 is close to the central height of the first reflecting mirror 3, and then leveling the first total station 2, wherein the leveling error is controlled within 1'.
S16, placing the tripod 11 near the second reflecting mirror 6, mounting the second total station 10 on the tripod 11, roughly adjusting the height of the tripod 11 until the central height of the second total station 10 is close to the central height of the second reflecting mirror 6, and then leveling the second total station 10, wherein the leveling error is controlled within 1'.
The optical axis of the photoelectric theodolite is OO'; the normal direction of the four-way end face 8 is CD, and the four-way end face is respectively intersected with a second reflecting mirror 6 and a second total station 10 at C, D; the outer normal of the end face 13 of the inclination sensor mounting base is C 'B', and the outer normal of the end face of the inclination sensor mounting base respectively crosses the first reflector 3 and the first total station 2 at two points C 'and B'; the connecting line direction of the first total station 2 and the second total station 10 is B' D; parallel lines from points B 'and C, C C', C 'B', respectively, intersect at point B.
S2, measuring and calculating the installation reference of the inclination angle sensor by using a measuring system.
The measuring system is used for measuring and calculating the installation reference of the inclination sensor, and comprises the following steps of:
s21, pitch angles of the first total station 2 and the second total station 10 are adjusted to 0 degrees, auto-collimation light sources of the first total station 2 and the second total station 10 are started, the first total station 2 is aligned with the first reflecting mirror 3 along the direction B 'C', and the second total station 10 is aligned with the second reflecting mirror 6 along the direction DC.
S22, adjusting the vertical axes and the pitching axes of the first total station 2 and the second total station 10 so that the return image of the self-collimation light source is positioned at the center of the field of view.
S23, reading a azimuth pointing angle A1 and a pitching pointing angle E1 of the first total station 2; reading the azimuth pointing angle A2 and the elevation pointing angle E2 of the second total station 10; the azimuth pointing angle A0 of the electro-optic theodolite 9 is read.
S24, adjusting angles of the first total station 2 and the second total station 10 to enable the first total station 2 and the second total station 10 to be in a pair of views along the direction of B' D, observing return images in respective fields of view, and finely adjusting vertical axes and pitching axes of the first total station 2 and the second total station 10 to enable the return images to be located in respective field centers.
S25, the adjusted azimuth angle A1 'of the first total station 2 and the adjusted azimuth angle A2' of the second total station 10 are read.
S26, calculating a pitch reference angle and an azimuth reference angle of the inclination sensor; pitch reference angleAzimuth reference angle->The method comprises the steps of carrying out a first treatment on the surface of the Wherein (1)>Is +.CBD, +.A in FIG. 1>Is the +.CDB in FIG. 1.
S3, adjusting the measuring system until the reference angle of the inclination sensor is smaller than a preset value.
And (3) according to the pitch reference angle calculated in the step (S2), if the pitch reference angle is larger than a preset value, adjusting the pitch reference angle by adding a shim on the rear side of the bolt 15 of the inclination sensor mounting base, and repeating the steps (S2-S3) after adjustment.
And S4, installing the inclination sensor on the inclination sensor installation base.
The first mirror 3 and the second mirror 6 are removed, and a single-axis tilt sensor is mounted on the tilt sensor mounting base end face 13 and the tilt sensor mounting base side face 14, respectively.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
The above embodiments of the present invention do not limit the scope of the present invention. Any of various other corresponding changes and modifications made according to the technical idea of the present invention should be included in the scope of the claims of the present invention.
Claims (4)
1. The method for measuring the installation reference of the inclination sensor of the photoelectric theodolite is characterized by comprising the following steps of:
s1, constructing a measuring system of an installation reference of an inclination sensor of a photoelectric theodolite;
s2, measuring and calculating an installation reference of the inclination sensor by using a measuring system, wherein the installation reference comprises a pitching reference angle and an azimuth reference angle of the inclination sensor;
s3, adjusting the measurement system until the pitching reference angle is smaller than a preset value;
s4, installing an inclination sensor on the inclination sensor installation base;
the measuring system comprises a lifting table, a first total station, a first reflecting mirror, an electronic level meter, a second reflecting mirror, a second total station, a tripod and a photoelectric theodolite;
the photoelectric theodolite comprises an inclination sensor mounting base, a lens cone and a leveling mechanism, wherein an assembly reference surface of the lens cone is a four-way end surface, and the inclination sensor mounting base comprises an inclination sensor mounting base end surface and an inclination sensor mounting base side surface;
the electronic level gauge is arranged on the photoelectric theodolite and is used for assisting the leveling mechanism to adjust the photoelectric theodolite to be horizontal; the first reflecting mirror is adhered to the end face of the inclination sensor mounting base, and the second reflecting mirror is adhered to the four-way end face; the lifting table is arranged near the first reflecting mirror, the first total station is arranged on the lifting table, and the central height of the first total station is adjusted by adjusting the height of the lifting table; the tripod is arranged near the second reflecting mirror, the second total station is arranged on the tripod, and the center height of the second total station is adjusted by adjusting the height of the tripod;
in step S1, the construction of the measurement system includes the following steps:
s11, wiping the end face of the inclination sensor mounting base, the side face of the inclination sensor mounting base, the four-way end face, the front face of the first reflecting mirror and the front face of the second reflecting mirror to remove attached dust or impurities;
s12, adhering the first reflecting mirror to the end face of the inclination sensor mounting base, and adhering the second reflecting mirror to the end face of the four-way joint;
s13, adjusting the photoelectric theodolite to be horizontal by utilizing an electronic level meter and a leveling mechanism;
s14, adjusting the pitching angle of the visual axis of the photoelectric theodolite to 0 degrees, and rotating the azimuth angle of the visual axis to an external normal line beyond the end surface of the installation base of the inclination sensor, so as to ensure that the first total station and the second total station have enough aiming space when the installation base of the inclination sensor is measured;
s15, placing a lifting table near the first reflecting mirror, placing a first total station on the lifting table, roughly adjusting the height of the lifting table until the central height of the first total station is close to the central height of the first reflecting mirror, and then leveling the first total station;
s16, placing a tripod near the second reflecting mirror, installing a second total station on the tripod, roughly adjusting the height of the tripod until the central height of the second total station is close to the central height of the second reflecting mirror, and then leveling the second total station;
in step S2, measuring and calculating the installation reference of the tilt sensor using the measuring system includes the steps of:
s21, adjusting pitch angles of the first total station and the second total station to 0 degrees, starting an auto-collimation light source of the first total station and the second total station, aligning the first total station with a first reflecting mirror, and aligning the second total station with a second reflecting mirror;
s22, adjusting the vertical axes and the pitching axes of the first total station and the second total station so that the return images of the auto-collimation light sources of the first total station and the second total station are respectively positioned at the center of the field of view;
s23, reading an azimuth pointing angle A1 and a pitching pointing angle E1 of the first total station; reading an azimuth pointing angle A2 and a pitching pointing angle E2 of the second total station; reading an azimuth pointing angle A0 of the photoelectric theodolite;
s24, adjusting angles of the first total station and the second total station to enable the first total station and the second total station to be in visual contact, observing return images in respective fields of view, and finely adjusting vertical axes and pitching axes of the first total station and the second total station to enable the return images to be located in respective field of view centers;
s25, reading the adjusted azimuth pointing angle A1 'of the first total station and the adjusted azimuth pointing angle A2' of the second total station;
s26, calculating a pitching reference angle and an azimuth reference angle of the inclination sensor, wherein the pitching reference angle Er=E1-E2, and the azimuth reference angle Ar=A0+180- (A1 '-A1) - (A2' -A2);
the precision of the first total station and the second total station is 1', the precision of the electronic level is 0.2', the adjustable stroke of the lifting table is 0.2m, the height of the tripod is 1.6m, and the diameters of the first reflecting mirror and the second reflecting mirror are 60mm.
2. The method for measuring the installation reference of the inclination sensor of the electro-optic theodolite according to claim 1, wherein in the steps S13, S15 and S16, the leveling errors of the leveling electro-optic theodolite, the first total station and the second total station are all less than 1 ".
3. The method for measuring the installation reference of the tilt sensor of the electro-optical theodolite according to claim 1, wherein in the step S3, the specific process of adjusting the measurement system until the pitch reference angle of the tilt sensor is smaller than the preset value is as follows:
and (3) according to the pitching reference angle calculated in the step (S2), if the pitching reference angle is larger than a preset value, adjusting the pitching reference angle by adding a shim on the rear side of the bolt of the inclination sensor mounting base, and repeating the steps (S2-S3) after adjustment until the pitching reference angle of the inclination sensor is smaller than the preset value.
4. The method for measuring the tilt sensor mounting reference of the electro-optical theodolite according to claim 1, wherein in the step S4, the mounting of the tilt sensor on the tilt sensor mounting base is specifically performed as follows:
and detaching the first reflecting mirror and the second reflecting mirror, and respectively installing a single-shaft inclination angle sensor on the end surface of the inclination angle sensor installation base and the side surface of the inclination angle sensor installation base.
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