CN110411357A - A kind of cylinder shaft tower limit range points laser measurement method - Google Patents
A kind of cylinder shaft tower limit range points laser measurement method Download PDFInfo
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- CN110411357A CN110411357A CN201910730774.2A CN201910730774A CN110411357A CN 110411357 A CN110411357 A CN 110411357A CN 201910730774 A CN201910730774 A CN 201910730774A CN 110411357 A CN110411357 A CN 110411357A
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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
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/22—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring angles or tapers; for testing the alignment of axes
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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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C3/00—Measuring distances in line of sight; Optical rangefinders
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Abstract
The present invention discloses a kind of cylindrical shaft tower limit range points laser measurement method, include the following steps: for small rail car to be placed on track, laser ranging system is coupled with angle measurement unit and is connect with computing unit, laser ranging system and angle measurement unit are mounted on small rail car, three parallel laser are issued from laser ranging system to beat on the cylindrical surface of shaft tower, laser ranging system acquires corresponding data respectively with angle measurement unit and is transmitted to computing unit, the distance between the vertical plane where shaft tower to laser ranging system Exit positions d1 is calculated in computing unit, the d1 measured is compared with minimum safe distance, if d1 is more than or equal to minimum safe distance, this tested shaft tower position is qualified, carry out the measurement of next shaft tower, if d1 is less than minimum safe distance, tested shaft tower is moved to Except minimum safe distance.The present invention has the advantages that the method is easy to operate, convenient, measurement efficiency is high, precision is high.
Description
Technical field
The present invention relates to field of measuring technique, and in particular to a kind of cylinder shaft tower limit range points laser measurement method.
Background technique
With the rapid development of railway construction in China, to the end of the year 2018, china railway revenue kilometres reach 13.1 ten thousand kilometers,
Wherein 2.9 ten thousand kilometers of high-speed rail account for the 66.3% of world's high-speed rail total amount.As the passenger rail of passenger traffic facility important component,
It is played an important role in terms of guaranteeing transportation safety and passenger's personal safety.Discovery passenger rail's limit, which exists, in practice asks
Topic protrudes, the boundary valve problem of shaft tower as along.Therefore, it is necessary to carry out boundary measurement to shaft tower along track to guarantee the row of train
Vehicle safety.
Current most shaft tower boundary measurement method is manual mode measurement, and main measuring tool is shaft tower limit measuring scale
With the measuring instrument of digital display type.The drawbacks of this mode is that several survey crews must measure operation, Er Qiebi with road at present
It must complete to measure in the time of railway maintenance skylight operation, and need to mention the last week and declare, so limited maintenance skylight work
The industry time allows operating personnel to be difficult to be timely completed the shaft tower clearance survey huge workload such in this way of Along Railway.In addition,
Shaft tower limit data needs timely update, if cannot regularly update, cause very big security risk to driving transportation safety.It is existing
Some measurement method low efficiencys, measurement accuracy are low.
Summary of the invention
The technical problem to be solved by the present invention is measure in the prior art between Along Railway shaft tower and track apart from when,
The problem that measurement efficiency is low, precision is low.
In order to solve the above technical problems, the technical solution used in the present invention is:
A kind of cylinder shaft tower limit range points laser measurement method, includes the following steps:
Step 1: small rail car is placed on the track by shaft tower to be measured；
Step 2: laser ranging system and angle measurement unit, which are coupled, enables angle measurement unit to measure laser
Angle between the laser that range unit issues and particular line, and by laser ranging system and angle measurement unit and calculate single
Member connection, computing unit can read the measurement data of laser ranging system and angle measurement unit and carry out in subsequent step
Operation；
Step 3: laser ranging system and angle measurement unit are mounted on small rail car, and determine laser ranging dress
Set the minimum safe distance between laser emitting point and shaft tower；
Step 4: opening laser ranging system and angle measurement unit, initial-state calibration is carried out to the two；
Step 5: from 3 points of A, B, C three parallel laser of sending on laser ranging system, three laser are beaten in shaft tower
Cylindrical surface on, intersection point of the laser on shaft tower issued by 3 points of A, B, C is D, E, F respectively, and 3 points of A, B, C are located at same water
In plane, and 3 points of A, B, C are parallel in the vertical plane of track positioned at same, from projecting direction straight down, distance
AB=BC=t, and C point is nearest from shaft tower；
Step 6: the elevation angle that angle measurement unit measures three laser is β, laser ranging system measures distance AD=
S1, BE=S2, CF=S3, calculating the laser issued by 3 points of A, B, C in the projected length of horizontal plane is respectively L1, L2, L3；
Step 7: it is α that angle measurement unit, which measures the projection in the horizontal plane of three laser and the angle of track, by A,
B, the laser of 3 points of C sendings is respectively again Dd, Ee, Ff, meter to the projection of the vertical plane perpendicular to track in the projection of horizontal plane
It calculates its length and is respectively as follows: l1、l2、l3；
Step 8: it is t2 that definition de spacing, which is t1, ef spacing, from projecting direction straight down, calculate
Step 9: rectangular coordinate system is established using F point as origin, perpendicular to track from projecting direction straight down
And the direction for being directed toward track is X-axis, being parallel to track and the direction far from laser ranging system is Y-axis, then the coordinate of D, E, F point
It is respectively as follows: D (XD, YD)、E(XE, YE)、F(XF, YF) namely D (l3-l1,-t1-t2), E (l3-l2,-t2), F (0,0), D, E, F
3 points are three points on shaft tower cylindrical surface, and according to triangle circumscribed circle center of circle formula, the coordinate for calculating the shaft tower center of circle is O
(x, y) calculates shaft tower radius r are as follows:Then where shaft tower to laser ranging system Exit positions (i.e. point A, B, C)
The distance between vertical plane d1=XF-x+l3-r；
Step 10: computing unit calculates d1 according to the measurement data of laser ranging system and angle measurement unit, will survey
The d1 obtained is compared with minimum safe distance, if d1 is more than or equal to minimum safe distance, this tested shaft tower position is qualified,
The measurement of next shaft tower is carried out, if d1 is less than minimum safe distance, tested shaft tower is moved to except minimum safe distance；
Step 11: laser ranging system and angle measurement unit are closed and unload after measurement, in case next time surveys
Amount.
Cylindrical shaft tower limit is carried out using the cylindrical shaft tower limit range points laser measurement method of one of present invention
When range measurement, small rail car is moved near shaft tower to be measured as needed, then emits laser and beats on the surface of shaft tower,
Laser ranging system and angle measurement unit measure corresponding data respectively, then by data transfer to computing unit, meter
Calculate unit run corresponding program so that calculate it is vertical where shaft tower to laser ranging system Exit positions (i.e. point A, B, C)
The distance between face d1, then compares d1 and minimum safe distance, if d1 is more than or equal to minimum safe distance, this
Tested shaft tower position is qualified, carries out the measurement of next shaft tower, if d1 is less than minimum safe distance, tested shaft tower is moved to minimum
Except safe distance, relative to traditional measurement method, the method is easy to operate, convenient, and measurement efficiency is high, precision is high.
Optimization, the laser ranging system is laser range finder.Laser range finder measurement accuracy is high, and using it is simple,
It is convenient.
Optimization, the angle measurement unit is angular transducer.Angular transducer can fast and accurately measure laser
The angle of range unit laser, measurement is rapid, precision is high.
Optimization, in step 3, the eye point of laser ranging system be located at track close to shaft tower one side edge just on
Side, it is ensured that minimum safe distance between laser ranging system laser emitting point and shaft tower be equal to track outer ledge and shaft tower it
Between minimum safe distance.The eye point of laser ranging system is located at track close to the surface of the one side edge of shaft tower, this
When, the d1 that computing unit calculates is the minimum safe distance between track outer ledge and shaft tower.
Optimization, in step 6, by 3 points of A, B, C issue laser the projected length of horizontal plane be respectively L1=S1 ×
Cos β, L2=S2 × cos β, L3=S3 × cos β.
Optimization, in step 7, from the laser of 3 points of A, B, C sendings projecting again to perpendicular to the perpendicular of track in horizontal plane
The projection faced directly is respectively Dd, Ee, Ff, and length is respectively as follows: l1=L1 × sin α, l2=L2 × sin α, l3=L3 × sin α.
Optimization, in step 8, from projecting direction straight down, make vertical line from E, F to Dd, intersection point be respectively G,
H, ∠ CFH=∠ BEG=α, DG=l1-l2, by D point be parallel to track straight line hand over BE extended line in k point, it is assumed that BE with
The intersection point of Dd is I, then t1 × tan α=GI=DI-DG=Dk × tan α-(l1-l2)=t × tan α-(l1-l2), thenSimilarly, DH=l1-l3, it is assumed that the intersection point of FH and BE is J, then JH × tan α=HI=DI-DH=
Dk×tanα-(l1-l3)=t × tan α-(l1-l3), then
T1+t2=FH=FJ+JH simultaneously；
ThenSo
Optimization, in step 9, according to triangle circumscribed circle center of circle formula, the coordinate that can obtain the shaft tower center of circle is O (x, y),
Then:
Optimization, the computing unit uses computer, is programmed to computer, computer expert crosses laser ranging system and angle
The measurement data of measuring device calculates the value of d1.Computer is programmed by computer programming means in the prior art,
Then it is cooperated with laser ranging system and angle measurement unit, laser ranging system can be realized and angle measurement unit is adopted
The calculating of the data of collection, and then quickly calculate erecting where shaft tower to laser ranging system Exit positions (i.e. point A, B, C)
The distance between face d1 directly, whole process more rapidly, precision it is higher.
The beneficial effects of the present invention are:
1. carrying out cylindrical shaft tower limit using the cylindrical shaft tower limit range points laser measurement method of one of present invention
When boundary's range measurement, small rail car is moved near shaft tower to be measured as needed, then emits laser and plays the table in shaft tower
Face, laser ranging system and angle measurement unit measure corresponding data respectively, then by data transfer to computing unit,
Computing unit runs corresponding program and then calculates erecting where shaft tower to laser ranging system Exit positions (i.e. point A, B, C)
It the distance between faces d1 directly, then compares d1 and minimum safe distance, if d1 is more than or equal to minimum safe distance,
This tested shaft tower position is qualified, carries out the measurement of next shaft tower, if d1 is less than minimum safe distance, tested shaft tower is moved to most
Except small safe distance, relative to traditional measurement method, the method is easy to operate, convenient, and measurement efficiency is high, precision is high.
2. laser range finder measurement accuracy is high, and using simply, conveniently.
3. angular transducer can fast and accurately measure the angle of laser ranging system laser, rapid, precision is measured
It is high.
4. the eye point of laser ranging system is located at track close to the surface of the one side edge of shaft tower, at this point, calculating
The d1 that unit calculates is the minimum safe distance between track outer ledge and shaft tower.
5. being programmed by computer programming means in the prior art to computer, then by itself and laser ranging system
And angle measurement unit cooperation, the calculating of the data of laser ranging system and angle measurement unit acquisition can be realized, and then fast
The distance between the vertical plane of speed calculated where shaft tower to laser ranging system Exit positions (i.e. point A, B, C) d1, entirely
Process is more rapid, precision is higher.
Detailed description of the invention
Fig. 1 be measured in the embodiment of the present invention cylindrical shaft tower limit apart from when schematic diagram；
Fig. 2 is main view when laser ranging system is connect with angle measurement unit in the embodiment of the present invention；
Fig. 3 is left view when laser ranging system is connect with angle measurement unit in the embodiment of the present invention；
Fig. 4 is top view when laser ranging system is connect with angle measurement unit in the embodiment of the present invention；
Fig. 5 be measured in the embodiment of the present invention cylindrical shaft tower limit apart from when top view；
Wherein, small rail car -1, shaft tower -2, track -3, laser ranging system -4, angle measurement unit -5.
Specific embodiment
The present invention is described in detail below in conjunction with attached drawing.
In the description of the present invention, it should be noted that the orientation or positional relationship of the instructions such as term "vertical", "horizontal"
To be based on the orientation or positional relationship shown in the drawings, be merely for convenience of description of the present invention and simplification of the description, rather than indicate or
It implies that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as
Limitation of the present invention.
Embodiment one:
A kind of cylinder shaft tower limit range points laser measurement method, includes the following steps:
Step 1: as shown in Figure 1, small rail car 1 is placed on the track 3 on 2 side of shaft tower to be measured；
Step 2: as in Figure 2-4, laser ranging system 4 is coupled with angle measurement unit 5 fills angle measurement
The angle between the laser and particular line that 5 can measure the sending of laser ranging system 4 is set, and by laser ranging system 4 and angle
Degree measuring device 5 is connect with computing unit, and computing unit can read the measurement of laser ranging system 4 and angle measurement unit 5
Data simultaneously carry out the operation in subsequent step, and in the present embodiment, the laser ranging system 4 is laser range finder, the angle
Measuring device 5 is angular transducer, and laser range finder and angular transducer are the prior art, market purchase, in addition, swashing
Optical range finding apparatus 4 is mounted on angle measurement unit 5, and laser ranging system 4 can be in vertical plane relative to angle measurement unit 5
Interior rotation, angle measurement unit 5 are mounted on small rail car 1 by a turntable, enable angle measurement unit 5 small in track
Horizontally rotate on vehicle 1, in order to which its position is adjusted flexibly and then meets measurement demand, in the present embodiment, the computing unit is adopted
With computer, computer is programmed, computer expert crosses laser ranging system 4 and the measurement data progress of angle measurement unit 5 is subsequent
It calculates；
Step 3: laser ranging system 4 and angle measurement unit 5 are mounted on small rail car 1, and determine laser ranging
Minimum safe distance between 4 laser emitting point of device and shaft tower 2, optimization, the eye point of laser ranging system 4 is located at track
3 close to the surface of the one side edge of shaft tower 2, it is ensured that the minimum safe between 4 laser emitting point of laser ranging system and shaft tower 2
Distance is equal to the minimum safe distance between 3 outer ledge of track and shaft tower 2；
Step 4: opening laser ranging system 4 and angle measurement unit 5, initial-state calibration is carried out to the two；
Step 5: as shown in figure 5, from 3 points of A, B, C three parallel laser of sending on laser ranging system 4, three
Laser is beaten on the cylindrical surface in shaft tower 2, and intersection point of the laser issued by 3 points of A, B, C on shaft tower 2 is D, E, F, A, B, C respectively
3 points are located in same level, and 3 points of A, B, C are located in the same vertical plane for being parallel to track 3, from top view direction
Observation, distance AB=BC=t=0.06m, and C point are nearest from shaft tower 2；
Step 6: the elevation angle that angle measurement unit 5 measures three laser is β=34.63 °, laser ranging system 4 is measured
Distance AD=S1=4.4325m, BE=S2=4.4169m, CF=S3=4.4350m, as shown in figure 5, then being sent out by 3 points of A, B, C
Laser out is respectively β=4.4325 L1=S1 × cos × cos34.63 °=3.6472m, L2=in the projected length of horizontal plane
β=4.4169 S2 × cos × cos34.63 °=3.6344m, L3=S3 × β=4.4350 cos × cos34.63 °=
3.6493m；
Step 7: as shown in figure 5, angle measurement unit 5 measures the folder of three laser projection in the horizontal plane and track 3
Angle is α=54.43 °, and the laser issued from 3 points of A, B, C is projected horizontal plane again to the vertical plane perpendicular to track 3
Projection is respectively Dd, Ee, Ff, and length is respectively as follows: l1α=3.6472=L1 × sin × sin54.43 °=2.9667m, l2=
α=3.6344 L2 × sin × sin54.43 °=2.9562m, l3α=3.6493=L3 × sin × sin54.43 °=
2.9684m；
Step 8: as shown in figure 5, top view direction is observed, it is assumed that de spacing is that t1, ef spacing are t2, from top view side
To seeing, make vertical line from E, F to Dd, intersection point is respectively G, H, α=54.43 ° ∠ CFH=∠ BEG=, DG=l1-l2, put down by D point
Row hands over the extended line of BE in k point in the straight line of track 3, it is assumed that the intersection point of BE and Dd is I, then t1 × tan α=GI=DI-DG=
Dk×tanα-(l1-l2)=t × tan α-(l1-l2), thenSimilarly, DH=l1-l3, false
If the intersection point of FH and BE is J, then JH × tan α=HI=DI-DH=Dk × tan α-(l1-l3)=t × tan α-(l1-l3), then
T1+t2=FH=FJ+JH simultaneously；
Then
So
Step 9: as shown in figure 5, the direction of top view observation, establishes rectangular coordinate system using F point as origin, perpendicular to rail
Road 3 and the direction for being directed toward track 3 are X-axis, and being parallel to track 3 and the direction far from laser ranging system 4 is Y-axis, then D, E, F point
Coordinate be respectively as follows: D (XD, YD)、E(XE, YE)、F(XF, YF) namely D (l3-l1,-t1-t2), E (l3-l2,-t2), F (0,0),
By above-mentioned calculated result it is found that the coordinate of D, E, F point is respectively as follows: D (0.0017, -0.1212), E (0.0122, -0.0687), F
(0,0), so XD=0.0017, YD=-0.01212, XE=0.0122, YE=-0.0687, XF=0, YF=0,3 points of D, E, F
For three points on 2 cylindrical surface of shaft tower, according to triangle circumscribed circle center of circle formula, the coordinate that can obtain 2 center of circle of shaft tower is O (x, y),
Then:
By XD=0.0017, YD=-0.01212, XE=0.0122, YE=-0.0687, XF=0, YF=0 brings above formula into, into
And it can obtain: x=-0.1539, y=-0.0628；
2 radius r of shaft tower are as follows:
Then r=0.1662；
It brings 3 points of coordinate of D, E, F into formula, r can be obtained, then shaft tower 2 arrives 4 Exit positions of laser ranging system (i.e. point
A, B, C) where the distance between vertical plane d1=XF-x+l3- r=0- (- 0.1539)+2.9684-0.1662=2.9561m；
Step 10: computing unit calculates d1 according to the measurement data of laser ranging system 4 and angle measurement unit 5, it will
The d1 measured is compared with minimum safe distance, if d1 is more than or equal to minimum safe distance, this tested 2 position of shaft tower is closed
Lattice carry out the measurement of next shaft tower 2, if d1 be less than minimum safe distance, by tested shaft tower 2 move to minimum safe distance it
Outside；
It is 2.9560m, this testing result d1 > 2.9560m, this tested 2, shaft tower that this measurement, which takes minimum safe distance,
Set qualification；
Step 11: laser ranging system 4 and angle measurement unit 5 are closed and unload after measurement, in case next time surveys
Amount.
Embodiment two:
The difference between this embodiment and the first embodiment lies in:
In step 5, distance AB=BC=t=0.06m；
In step 6, the elevation angle of three laser is β=37.64 °, distance AD=S1=4.1698m, BE=S2=
4.1418m, CF=S3=4.1508m, as shown in figure 5, the laser issued by 3 points of A, B, C is distinguished in the projected length of horizontal plane
For L1=S1 × cos β=3.30191m, L2=S2 × cos β=3.27974m, L3=S3 × cos β=3.28687m；
In step 7, as shown in figure 5, the angle of the projection of three laser in the horizontal plane and track 3 be α=
67.81 °, from 3 points of A, B, C issue laser be respectively to the projection of the vertical plane perpendicular to track 3 again in the projection of horizontal plane
Dd, Ee, Ff, length are respectively as follows: l1=L1 × sin α=3.05736m, l2=L2 × sin α=3.03683m, l3=L3 ×
Sin α=3.04343m；
In step 8, as shown in figure 5, α=67.81 ° ∠ CFH=∠ BEG=, t1=0.05163m, t2=0.06358m,
In step 9, by above-mentioned calculated result it is found that the coordinate of D, E, F point is respectively as follows: D (- 0.0139, -0.1143), E
(0.0066, -0.0636), F (0,0), so XD=-0.0139, YD=-0.1143, XE=0.0066, YE=-0.0636, XF=
0、YF=0, and then can obtain: x=-0.1147, y=-0.1693；Then r=0.2045；
Then shaft tower 2 arrives the distance between the vertical plane where 4 Exit positions of laser ranging system (i.e. point A, B, C) d1=
XF-x+l3- r=0+0.1147+3.04343-0.2045=2.9536m；
In step 10, it is 2.9560m, this testing result d1 < 2.9560m, this quilt that this measurement, which takes minimum safe distance,
2 position of measuring staff tower is unqualified, need to move it to except minimum safe distance.
Embodiment three:
The difference between this embodiment and the first embodiment lies in:
In step 5, distance AB=BC=t=0.06m；
In step 6, the elevation angle of three laser is β=33.8 °, distance AD=S1=6.153m, BE=S2=
6.103m, CF=S3=6.096m, as shown in figure 5, the laser issued by 3 points of A, B, C is respectively in the projected length of horizontal plane
L1=S1 × cos β=5.1131m, L2=S2 × cos β=5.0715m, L3=S3 × cos β=5.0658m；
In step 7, as shown in figure 5, the angle of the projection of three laser in the horizontal plane and track 3 be α=
33.63 °, from 3 points of A, B, C issue laser be respectively to the projection of the vertical plane perpendicular to track 3 again in the projection of horizontal plane
Dd, Ee, Ff, length are respectively as follows: l1=L1 × sin α=2.9784m, l2=L2 × sin α=2.9541m, l3=L3 × sin α
=2.9508m；
In step 8, as shown in figure 5, α=33.63 ° ∠ CFH=∠ BEG=, t1=0.0262m, t2=0.0553m,
In step 9, by above-mentioned calculated result it is found that the coordinate of D, E, F point is respectively as follows: D (- 0.0262, -0.0814), E
(- 0.0032, -0.0553), F (0,0), so XD=-0.0262, YD=-0.0814, XE=-0.0032, YE=-0.0553, XF
=0, YF=0, and then can obtain: x=-0.07, y=-0.0238；Then r=0.074；
Then shaft tower 2 arrives the distance between the vertical plane where 4 Exit positions of laser ranging system (i.e. point A, B, C) d1=
XF-x+l3- r=0.07+2.9508-0.074=2.9568m；
In step 10, it is 2.9560m, this testing result d1 > 2.9560m, this quilt that this measurement, which takes minimum safe distance,
2 position of measuring staff tower is qualified.
Working principle:
Cylindrical shaft tower limit is carried out using the cylindrical shaft tower limit range points laser measurement method of one of present invention
When range measurement, small rail car 1 is moved near shaft tower 2 to be measured as needed, then emits laser and plays the table in shaft tower 2
Face, laser ranging system 4 and angle measurement unit 5 measure corresponding data respectively, then that data transfer is single to calculating
Member, computing unit run corresponding program and then calculate shaft tower 2 to 4 Exit positions of laser ranging system (i.e. point A, B, C) institute
Vertical plane between distance d1, then d1 and minimum safe distance are compared, if d1 be more than or equal to minimum safe
Distance, then this tested 2 position of shaft tower is qualified, carries out the measurement of next shaft tower 2, if d1 is less than minimum safe distance, will be tested
Shaft tower 2 moves to except minimum safe distance, and relative to traditional measurement method, the method is easy to operate, convenient, measurement efficiency
High, precision height.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (9)
1. a kind of cylinder shaft tower limit range points laser measurement method, characterized by the following steps:
Step 1: small rail car (1) is placed on the other track (3) of shaft tower to be measured (2)；
Step 2: laser ranging system (4) is coupled with angle measurement unit (5) survey angle measurement unit (5) can
The angle between the laser and particular line that laser ranging system (4) issue is measured, and by laser ranging system (4) and angle measurement
Device (5) is connect with computing unit, and computing unit can read the measurement of laser ranging system (4) and angle measurement unit (5)
Data simultaneously carry out the operation in subsequent step；
Step 3: laser ranging system (4) and angle measurement unit (5) are mounted on small rail car (1), and determine Laser Measuring
Away from the minimum safe distance between device (4) laser emitting point and shaft tower (2)；
Step 4: opening laser ranging system (4) and angle measurement unit (5), initial-state calibration is carried out to the two；
Step 5: from 3 points of A, B, C three parallel laser of sending on laser ranging system (4), three laser are beaten in shaft tower
(2) on cylindrical surface, intersection point of the laser issued by 3 points of A, B, C on shaft tower (2) is D, E, F respectively, and 3 points of A, B, C are located at
In same level, and 3 points of A, B, C are located in the same vertical plane for being parallel to track (3), from projecting direction straight down
Observation, distance AB=BC=t, and C point are nearest from shaft tower (2)；
Step 6: the elevation angle that angle measurement unit (5) measures three laser is β, laser ranging system (4) measures distance AD=
S1, BE=S2, CF=S3, calculating the laser issued by 3 points of A, B, C in the projected length of horizontal plane is respectively L1, L2, L3；
Step 7: it is α that angle measurement unit (5), which measures the projection of three laser in the horizontal plane and the angle of track (3), by
A, 3 points of B, C sending laser horizontal plane projection again to the projection of the vertical plane perpendicular to track (3) be respectively Dd, Ee,
Ff calculates its length and is respectively as follows: l1、l2、l3；
Step 8: it is t2 that definition de spacing, which is t1, ef spacing, from projecting direction straight down, calculate
Step 9: establish rectangular coordinate system using F point as origin from projecting direction straight down, perpendicular to track (3) and
The direction for being directed toward track (3) is X-axis, and being parallel to track (3) and the direction far from laser ranging system (4) is Y-axis, then D, E, F
The coordinate of point is respectively as follows: D (XD, YD)、E(XE, YE)、F(XF, YF) namely D (l3-l1,-t1-t2), E (l3-l2,-t2), F (0,
0), shaft tower (2) are calculated according to triangle circumscribed circle center of circle formula for three points on shaft tower (2) cylindrical surface for 3 points of D, E, F
The coordinate in the center of circle is O (x, y), calculates shaft tower (2) radius r are as follows:Then shaft tower (2) arrives laser ranging system (4)
The distance between vertical plane where Exit positions (i.e. point A, B, C) d1=XF-x+l3-r；
Step 10: computing unit calculates d1 according to the measurement data of laser ranging system (4) and angle measurement unit (5), it will
The d1 measured is compared with minimum safe distance, if d1 is more than or equal to minimum safe distance, this tested shaft tower (2) position
Qualification carries out the measurement of next shaft tower (2), if d1 is less than minimum safe distance, tested shaft tower (2) is moved to minimum safe distance
From except；
Step 11: laser ranging system (4) and angle measurement unit (5) are closed and unload after measurement, in case next time surveys
Amount.
2. a kind of cylindrical shaft tower limit range points laser measurement method according to claim 1, it is characterised in that: described
Laser ranging system (4) is laser range finder.
3. a kind of cylindrical shaft tower limit range points laser measurement method according to claim 1, it is characterised in that: described
Angle measurement unit (5) is angular transducer.
4. a kind of cylindrical shaft tower limit range points laser measurement method according to claim 1, it is characterised in that: step
In three, the eye point of laser ranging system (4) is located at track (3) close to the surface of the one side edge of shaft tower (2), it is ensured that laser
Minimum safe distance between range unit (4) laser emitting point and shaft tower (2) is equal to track (3) outer ledge and shaft tower (2)
Between minimum safe distance.
5. a kind of cylindrical shaft tower limit range points laser measurement method according to claim 1, it is characterised in that: step
In six, by 3 points of A, B, C issue laser the projected length of horizontal plane be respectively L1=S1 × cos β, L2=S2 × cos β,
L3=S3 × cos β.
6. a kind of cylindrical shaft tower limit range points laser measurement method according to claim 1, it is characterised in that: step
In seven, from 3 points of A, B, C issue laser horizontal plane projection again to the projection of the vertical plane perpendicular to track be respectively Dd,
Ee, Ff, length are respectively as follows: l1=L1 × sin α, l2=L2 × sin α, l3=L3 × sin α.
7. a kind of cylindrical shaft tower limit range points laser measurement method according to claim 1, it is characterised in that: step
In eight, from projecting direction straight down, make vertical line from E, F to Dd, intersection point is respectively G, H, ∠ CFH=∠ BEG=α,
DG=l1-l2, by D point be parallel to track straight line hand over BE extended line in k point, it is assumed that the intersection point of BE and Dd be I, then t1 ×
Tan α=GI=DI-DG=Dk × tan α-(l1-l2)=t × tan α-(l1-l2), thenSimilarly,
DH=l1-l3, it is assumed that the intersection point of FH and BE is J, then JH × tan α=HI=DI-DH=Dk × tan α-(l1-l3)=t × tan
α-(l1-l3), then
T1+t2=FH=FJ+JH simultaneously；
ThenSo
8. a kind of cylindrical shaft tower limit range points laser measurement method according to claim 1, it is characterised in that: step
In nine, according to triangle circumscribed circle center of circle formula, the coordinate that can obtain the shaft tower center of circle is O (x, y), then:
9. a kind of cylindrical shaft tower limit range points laser measurement method according to claim 1, it is characterised in that: described
Computing unit uses computer, is programmed to computer, computer expert crosses the survey of laser ranging system (4) and angle measurement unit (5)
Amount data calculate the value of d1.
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