CN106441222B - Route section plotting board and method based on digital photographing - Google Patents
Route section plotting board and method based on digital photographing Download PDFInfo
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- CN106441222B CN106441222B CN201611071025.6A CN201611071025A CN106441222B CN 106441222 B CN106441222 B CN 106441222B CN 201611071025 A CN201611071025 A CN 201611071025A CN 106441222 B CN106441222 B CN 106441222B
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- mark post
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C7/00—Tracing profiles
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Abstract
The invention discloses a kind of route section plotting board based on digital photographing and method, the device includes M mark post and mapping terminal, and wherein M=2n+1, n are integer and n >=1；Mark post includes mobile jib and locating piece, first rotating shaft is provided with mobile jib and the link position of locating piece, two are rotatablely equipped with first rotating shaft positioned at the both sides of mobile jib from bar, the top of mobile jib is provided with the second rotating shaft rotated for first laser transmitter, and mapping terminal includes tripod, mounting seat, digital camera, second laser transmitter and computer；The method comprising the steps of：First, plan-position residing for surveyed and drawn route section is determined；2nd, determine digital photographing position and gather image information to be uploaded to computer；3rd, Image Information Processing and the coordinate of each mark post is calculated；4th, space coordinates conversion；5th, the drafting of route section.Present invention operation carries simple and convenient, and measurement drafting route section speed is fast, and computer disposal high precision is applied widely.
Description
Technical field
The invention belongs to cross section technical field of mapping, and in particular to a kind of route section mapping based on digital photographing
Device and method.
Background technology
The place passed through to circuit is needed to carry out cross section mapping at the circuit design initial stage, before to circuit
Phase design and the calculating of quantities.Traditional cross section mapping method mainly includes walking circuit using total powerstation or GPS-RTK
To the mapping in cross section, speed is very slow during total station survey cross section, in some regional operations with a varied topography, operation difficulty
Greatly；Although measuring speed can be improved using GPS-RTK, the relatively poor area of satellite-signal, GPS- are received at some
RTK does not receive satellite-signal at all, and its accuracy and speed can all be greatly affected, and input cost is high.Therefore, nowadays
Lack a kind of low cost, simple to operate, easy to carry, the circuit based on digital photographing for reducing satellite communication access times is cross-section
Face plotting board and method, route section position is found by multiple mark posts, and coplanar cloth is shot using common digital camera
If multiple mark posts, real data, computer disposal speed are changed by the deformation of distance parameter in image and minification
Hurry up, the regional mapping operations to route section that other existing instruments cannot be measured can be solved.
The content of the invention
The technical problems to be solved by the invention are for above-mentioned deficiency of the prior art, there is provided one kind is based on number
The route section plotting board of photograph, it is novel in design rationally, and operation carries simple and convenient, and route section speed is drawn in measurement
Degree is fast, and computer disposal high precision is applied widely, is easy to promote the use of.
In order to solve the above technical problems, the technical solution adopted by the present invention is：Route section based on digital photographing is surveyed
Paint device, it is characterised in that：Assigned on the ground and for determining the mark post of route section position including M, and set
It is used for the mapping terminal of acquisition process mark post parameter, wherein M=2n+1 in the route section side, n is integer and n >=1；
Mark post includes mobile jib and the locating piece for being arranged on mobile jib bottom, and first rotating shaft is provided with mobile jib and the link position of locating piece,
Be rotatablely equipped with two from bar in first rotating shaft, two from bar respectively positioned at the both sides of mobile jib, the top of mobile jib is provided with and supplies the
The second rotating shaft that one generating laser is rotated, it is mobile jib, in the same plane from bar and first laser transmitter；The mapping is eventually
End includes tripod, the mounting seat on tripod and the digital camera in mounting seat, camera lens in digital camera
Surface or underface second laser transmitter perpendicular to route section is installed, the signal output part of digital camera with
Computer is connected.
The above-mentioned route section plotting board based on digital photographing, it is characterised in that：The route section is located at
In plane where M mark post of coplanar laying.
The above-mentioned route section plotting board based on digital photographing, it is characterised in that：In being located in the M mark post
Between position mark post be middle pile beacon bar, the middle pile beacon bar be arranged on road center line on.
The above-mentioned route section plotting board based on digital photographing, it is characterised in that：The second laser transmitter
The laser beam for sending is perpendicular to route section and on the straight line where mobile jib in the middle pile beacon bar.
The above-mentioned route section plotting board based on digital photographing, it is characterised in that：The mobile jib and it is from bar
Expansion link, the length of the expansion link isL meets：1m≤l≤1.5m.
The above-mentioned route section plotting board based on digital photographing, it is characterised in that：It is described from bar around first rotating shaft
Rotation angle between mobile jib is 0 °~90 °.
Meanwhile, the invention also discloses a kind of method and step it is simple, reasonable in design, can be calculated by photograph image deformation quantity
The route section mapping method of distance on the spot, it is characterised in that the method is comprised the following steps：
Plan-position residing for the surveyed and drawn route section of step one, determination：First, install described on the center line on road
Middle pile beacon bar, be fully deployed the middle pile beacon bar two adjust the azimuth of the middle pile beacon bar from bar, determine that circuit is cross-section
The reference position in face；Then, it is respectively mounted N number of mark post in the both sides of the middle pile beacon bar, opens respective the in 2N mark post
Plane described in one generating laser surface sweeping where middle pile beacon bar, it is determined that the route section surveyed and drawn, wherein, N=2n-1, institute
State pile beacon bar to be arranged on the middle stake point that satellite sounding is obtained, known to middle stake point coordinates；
Step 2, determine digital camera position and gather image information to be uploaded to computer：First, described second is adjusted to swash
The vertical directive route section of laser beam that optical transmitting set sends and the laser beam that the second laser transmitter sends with it is described
Straight line intersection in middle pile beacon bar where mobile jib；Then, the focal length of digital camera is adjusted, the mark post of both sides in M mark post is leaned on
The border inner side in the visual field in nearly digital camera, presses shutter and obtains the M image information of mark post and be uploaded to the image information
Computer；
Step 3, Image Information Processing simultaneously calculate the coordinate of each mark post：Position of each mark post on image is demarcated, institute is searched
Middle pile beacon bar position is stated, rectangular coordinate system o-xz is set up by the origin of coordinates of the first rotating shaft of the middle pile beacon bar, in described
Straight line where the mobile jib of pile beacon bar is the z-axis of rectangular coordinate system o-xz, and the straight line from where bar with the middle pile beacon bar is
The x-axis of rectangular coordinate system o-xz, the coordinate of each mark post is calculated from the middle pile beacon bar respectively to its both sides, two neighboring mark post
Coordinate calculation method all same；
When two neighboring mark post to that need to calculate carries out coordinate calculating, process is as follows：
Step 301, setting auxiliary magnet：Generated at random on domatic between two neighboring mark post on image by computer
Auxiliary magnet A；
Step 302, according to formulaSide mark post in calculation procedure 301 positioned at auxiliary magnet A is along x-axis side
To deformation coefficient k1With the deformation coefficient k along the x-axis direction of the opposite side mark post positioned at auxiliary magnet A2, wherein, i be mark post in from
The quantity that bar launches, i=1 or 2, laiFor deformation coefficient is k on image1Mark post correspondence i-th length from bar, lbiIt is image
Upper deformation coefficient is k2Mark post correspondence i-th length from bar；
Step 303, according to formulaCalculate deformation coefficient k along the x-axis direction at auxiliary magnet AA, its
In, saTo be located at the distance of the side mark post of auxiliary magnet A, s on auxiliary magnet A along the x-axis direction range imagebIt is auxiliary magnet A along x-axis
The distance of the opposite side mark post of auxiliary magnet A is located on the range image of direction；
Step 304, according to formulaCalculate two neighboring mark post distance L in the direction of the x axisx,
Wherein, LaIt is distance parameter s on imageaCorresponding actual range, L in actual fieldbIt is distance parameter s on imagebIn reality
Corresponding actual range in scene；
Step 305, according to formulaIn calculation procedure 301 positioned at auxiliary magnet A side mark post along the z-axis direction
Deformation coefficient k1' and positioned at the opposite side mark post deformation coefficient k' along the z-axis direction of auxiliary magnet A2, wherein, l'aTo become on image
Shape coefficient is k1' mark post correspondence mobile jib length, lb' it is that deformation coefficient is k' on image2Mark post correspondence mobile jib length；
Step 306, according to formulaCalculate deformation coefficient k' along the z-axis direction at auxiliary magnet AA, its
In, s'aTo be located at the distance of the side mark post of auxiliary magnet A, s' on auxiliary magnet A along the z-axis direction range imagebIt is auxiliary magnet A along z
The distance of the opposite side mark post of auxiliary magnet A is located on direction of principal axis range image；
Step 307, according to formulaCalculate two neighboring mark post distance L in the z-axis directionz,
Wherein, L'aIt is distance parameter s' on imageaCorresponding actual range, L in actual fieldbIt is distance parameter s' on imageb
Corresponding actual range in actual field；
Step 308, step 302 to step 307 is repeated several times, until completing each mark post coordinate in rectangular coordinate system o-xz
Calculating process；
Step 4, space coordinates conversion：By computer using coordinate transformation method to being distributed in rectangular coordinate system o-xz
In the coordinate of M mark post carry out Coordinate Conversion, by the Coordinate Conversion of M mark post in rectangular coordinate system o-xz to joining heart coordinate
System or geocentric coordinates are fastened, and obtain real space coordinate of the M mark post in referenced-centric system or geocentric coordinate system；
The drafting of step 5, route section：The real space coordinate edge of the M mark post that computer will be obtained in step 4
The incremental direction of x coordinate is in smoothing junction successively, draws route section.
The present invention has advantages below compared with prior art：
1st, the mark post in the route section plotting board based on digital photographing that the present invention is used is by inserting underground
Locating piece fixes on the ground mark post, is rotated in first rotating shaft and installs two from bar, actually can select exhibition according to site contour
Open two, knots as the measuring basis in horizontal direction and scalable from bar and mobile jib from bar from bar or two
Structure is simple, easy to carry.
2nd, shoot multiple by digital camera in the route section plotting board based on digital photographing that the present invention is used
Mark post obtains route section parameter, and real data is changed by the deformation and scaling multiple of distance parameter on image, adopts
With computer processing data, speed is fast, reliable and stable.
3rd, the route section mapping method based on digital photographing that the present invention is used, step is simple, by setting up right angle
Coordinate system o-xz, respectively to being calculated apart from deformation and scaling in x-axis horizontal direction and on z-axis vertical direction, leads to
Cross space coordinates conversion to fasten the Coordinate Conversion of each mark post on route section to referenced-centric system or geocentric coordinates, paint
Route section processed is convenient and swift, efficiency high.
4th, the present invention it is novel in design rationally input cost is low, simple to operate, easy to carry, reduce to satellite communication according to
Rely, it is practical, it is easy to promote the use of.
In sum, the present invention is novel in design rationally, and operation carries simple and convenient, and route section speed is drawn in measurement
Hurry up, computer disposal high precision is applied widely, is easy to promote the use of.
Below by drawings and Examples, technical scheme is described in further detail.
Brief description of the drawings
Fig. 1 is the use state figure of the route section plotting board based on digital photographing that the present invention is used.
Fig. 2 is the structural representation of mark post in route section plotting board of the present invention.
Fig. 3 be the present invention based on digital photographing route section mapping method in two neighboring mark post in rectangular coordinate system
Position relationship schematic diagram in o-xz.
Fig. 4 is the method flow block diagram of route section mapping method of the present invention based on digital photographing.Reference is said
It is bright:
1-mark post；1-1-first rotating shaft；1-2-from bar；
1-3-locating piece；1-4-mobile jib；1-5-the second rotating shaft；
1-6-first laser transmitter；2-route section；3-digital camera；
4-mounting seat；5-tripod；7-computer.
Specific embodiment
As depicted in figs. 1 and 2, the route section plotting board based on digital photographing of the present invention, including M peace
Inserting on the ground and for determining the mark post 1 of the position of route section 2, and be arranged on the side of the route section 2 is used for
The mapping terminal of the parameter of acquisition process mark post 1, wherein M=2n+1, n are integer and n >=1；Mark post 1 includes mobile jib 1-4 and setting
First rotating shaft 1-1, first are provided with the link position of the locating piece 1-3 of mobile jib 1-4 bottoms, mobile jib 1-4 and locating piece 1-3
Two from bar 1-2 are rotatablely equipped with rotating shaft 1-1, two from bar 1-2 respectively positioned at the both sides of mobile jib 1-4, the top of mobile jib 1-4
It is provided with the second rotating shaft 1-5 rotated for first laser transmitter 1-6, mobile jib 1-4, from bar 1-2 and first laser transmitter 1-6
It is in the same plane；The mapping terminal includes tripod 5, the mounting seat 4 on tripod 5 and installed in mounting seat
Digital camera 3 on 4, the surface or underface of camera lens are provided with and swash perpendicular to the second of route section 2 in digital camera 3
Optical transmitting set, the signal output part of digital camera 3 is connected with computer 7.
In the present embodiment, centrally located mark post 1 is middle pile beacon bar in the M mark post 1, the middle pile beacon bar peace
On the center line on road.
In actually used, route section include highway cross-section, road Cross Section, River Bed Cross Section, etc. belt-spot
Cross section or greenbelt cross section etc., when actually assigning the middle pile beacon bar, the middle pile beacon bar are arranged on middle stake point, in
Stake point is located on the center line on road to detect gained position and middle stake point in advance, adjusts the orientation of the middle pile beacon bar, will be positioned
Block 1-3 is arranged on middle stake point.
In the present embodiment, the route section 2 is located in the plane at the place of M mark post 1 of coplanar laying.
In the present embodiment, the rotation angle from bar 1-2 between first rotating shaft 1-1 and mobile jib 1-4 is 0 °~90 °.
After locating piece 1-3 is arranged on middle stake point, it is fully deployed from bar 1-2 to mobile jib 1-4 both sides, makes to launch from bar 1-2
90 ° vertical with mobile jib 1-4, opens first laser transmitter 1-6 and first laser transmitter 1-6 is rotated around the second rotating shaft 1-5
Transmitting laser beam, the expansion in the mark post 1 adjacent with the middle pile beacon bar is laid from bar 1-2 along the plane of laser beam surface sweeping, is beaten
The first laser transmitter 1-6 opened in the mark post 1 equally rotates surface sweeping, makes the expansion in next mark post 1 from bar 1-2 along laser
The plane of beam surface sweeping is laid, the like, repeat no more.
Actual to assign when on the ground mark post 1, the location of mark post 1 physical features is not necessarily flat, causes the mark post 1
Two cannot rotate 90 ° from bar 1-2, now, ensure that two are fully deployed from bar 1-2 from bar 1-2 according to landform
It is vertical with mobile jib 1-4 holdings, it is ensured that the shooting image of digital camera 3 obtains the reliability of view data.
In the present embodiment, the laser beam that the second laser transmitter sends is perpendicular to route section 2 and positioned at described
On straight line in middle pile beacon bar where mobile jib 1-4.
In the present embodiment, M mark post 1 is extended on the basis of the middle pile beacon bar to its both sides to be laid, and is swashed using stating second
Optical transmitting set sends laser beam perpendicular to route section 2 and on the straight line where mobile jib 1-4 in the middle pile beacon bar, really
The measuring center that digital camera 3 is just being constituted to M mark post 1 is protected, the view data deformation quantity that now digital camera 3 is obtained is minimum,
Calculation error is small, reduces the unnecessary data noise for obtaining and being brought during data.
In the present embodiment, the mobile jib 1-4 and expansion link is from bar 1-2, the length of the expansion link isL expires
Foot：1m≤l≤1.5m.
In practical operation, when not using mark post 1, beeline is contracted to by mobile jib 1-4 and from bar 1-2, it is easy to carry, make
During with mark post 1, longest distance is elongated to by mobile jib 1-4 and from bar 1-2, reduces the ratio of view data and actual range, so that
Improve computational accuracy.
A kind of method that route section mapping is carried out using device as claimed in claim 1 as shown in Figure 3 and Figure 4,
Comprise the following steps：
Plan-position residing for the surveyed and drawn route section of step one, determination：First, install described on the center line on road
Middle pile beacon bar, be fully deployed the middle pile beacon bar two adjust the azimuth of the middle pile beacon bar from bar 1-2, determine circuit
The reference position in cross section 2；Then, N number of mark post 1 is respectively mounted in the both sides of the middle pile beacon bar, it is each in 2N mark post 1 of opening
From first laser transmitter 1-6 surface sweepings described in plane where middle pile beacon bar, it is determined that the route section 2 surveyed and drawn, wherein,
N=2n-1, the middle pile beacon bar is arranged on the middle stake point that satellite sounding is obtained, known to middle stake point coordinates；
In the present embodiment, M is assigned in mark post 1 on the ground, avoid crossing between two adjacent mark posts 1 ridge or
Mountain valley, it is ensured that the correctness of the mapping of route section 2；A mark post 1 is assigned to obtain circuit at the position in ridge or mountain valley
Cross section 2 turnover trend, continuously rise or fall it is domatic on mark post 1 is assigned according to laser beam flying coverage, protect
Demonstrate,prove effective measurement distance interval.
Step 2, determine digital camera position and gather image information to be uploaded to computer：First, described second is adjusted to swash
The vertical directive route section 2 of laser beam that optical transmitting set sends and the laser beam that the second laser transmitter sends with it is described
Straight line intersection in middle pile beacon bar where mobile jib 1-4；Then, the focal length of digital camera 3 is adjusted, by the mark of both sides in M mark post 1
The border inner side in the visual field in the digital camera 3 of bar 1, presses shutter and obtains the M image information of mark post 1 and by the image information
It is uploaded to computer 7；
When actually taking pictures, outermost two mark posts 1 are near the visual field in digital camera 3 in M mark post 1 of guarantee as far as possible
Border, using the visual field sizes of digital camera 3 while ensureing all to photograph M mark post 1, it is to avoid M mark post 1 is gathered in photograph
In the middle of piece, expand the ratio of actual mark post 1 and mark post on image, reduce the processing accuracy of computer 7.
Step 3, Image Information Processing simultaneously calculate the coordinate of each mark post：Position of each mark post 1 on image is demarcated, is searched
The middle pile beacon bar position, sets up rectangular coordinate system o-xz, with institute by the origin of coordinates of the first rotating shaft 1-1 of the middle pile beacon bar
Straight line where stating the mobile jib 1-4 of pile beacon bar is the z-axis of rectangular coordinate system o-xz, with the middle pile beacon bar from bar 1-2 institutes
Straight line for rectangular coordinate system o-xz x-axis, calculate the coordinate of each mark post 1, phase respectively to its both sides from the middle pile beacon bar
Adjacent two Coordinate calculation method all sames of mark post 1；
When two neighboring mark post 1 to that need to calculate carries out coordinate calculating, process is as follows：
Step 301, setting auxiliary magnet：Given birth at random on domatic between two neighboring mark post on image by computer 7
Into auxiliary magnet A；
Step 302, according to formulaSide mark post in calculation procedure 301 positioned at auxiliary magnet A is along x-axis side
To deformation coefficient k1With the deformation coefficient k along the x-axis direction of the opposite side mark post positioned at auxiliary magnet A2, wherein, i be mark post 1 in from
The quantity that bar 1-2 launches, i=1 or 2, laiFor deformation coefficient is k on image1Mark post correspondence i-th length from bar, lbiFor
Deformation coefficient is k on image2Mark post correspondence i-th length from bar；
It should be noted that actual relief situation is indefinite, when assigning, the position physical features of mark post 1 is flat, deployable mark
Two of bar 1 averagely reduce deformation coefficient error from bar 1-2 by taking；When assigning, the position physical features of mark post 1 is severe, it is impossible to complete
It is complete launch two from bar 1-2 when, it is ensured that two are expanded to horizontal level from bar 1-2, actual to choose assigning for mark post 1
During position, the flat position of physical features is chosen as far as possible makes mark post 1 all launch.
Step 303, according to formulaCalculate deformation coefficient k along the x-axis direction at auxiliary magnet AA, its
In, saTo be located at the distance of the side mark post of auxiliary magnet A, s on auxiliary magnet A along the x-axis direction range imagebIt is auxiliary magnet A along x-axis
The distance of the opposite side mark post of auxiliary magnet A is located on the range image of direction；
Step 304, according to formulaCalculate the distance in the direction of the x axis of two neighboring mark post 1
Lx, wherein, LaIt is distance parameter s on imageaCorresponding actual range, L in actual fieldbIt is distance parameter s on imagebIn reality
Corresponding actual range in the scene of border；
In the present embodiment, the phase of corresponding mark post 1 and the middle pile beacon bar is calculated to its both sides since the middle pile beacon bar
Away from distance, wherein, the middle pile beacon bar coordinate is, it is known that the coordinate of new mark post can quickly be determined by change in displacement.
Step 305, according to formulaIn calculation procedure 301 positioned at auxiliary magnet A side mark post along the z-axis direction
Deformation coefficient k1' and positioned at the opposite side mark post deformation coefficient k' along the z-axis direction of auxiliary magnet A2, wherein, l'aTo become on image
Shape coefficient is k1' mark post correspondence mobile jib length, lb' it is that deformation coefficient is k' on image2Mark post correspondence mobile jib length；
It should be noted that the actual mark post 1 using inverted T-shaped, the mobile jib 1-4 only one of which of mark post 1, is not in be hidden
The situation of gear, direct measurement calculates the top offset change of z-axis direction.
Step 306, according to formulaCalculate deformation coefficient k' along the z-axis direction at auxiliary magnet AA, its
In, s'aTo be located at the distance of the side mark post of auxiliary magnet A, s' on auxiliary magnet A along the z-axis direction range imagebIt is auxiliary magnet A along z
The distance of the opposite side mark post of auxiliary magnet A is located on direction of principal axis range image；
Step 307, according to formulaCalculate the distance in the z-axis direction of two neighboring mark post 1
Lz, wherein, L'aIt is distance parameter s' on imageaCorresponding actual range, L in actual fieldbIt is distance parameter s' on imageb
The corresponding actual range in actual field；
Step 308, step 302 to step 307 is repeated several times, until complete each mark post 1 being sat in rectangular coordinate system o-xz
Target calculating process；
Step 4, space coordinates conversion：By computer 7 using coordinate transformation method to being distributed in rectangular coordinate system o-xz
In the coordinate of M mark post 1 carry out Coordinate Conversion, the Coordinate Conversion of the M mark post 1 in rectangular coordinate system o-xz is sat to the heart is joined
Mark system or geocentric coordinates are fastened, and obtain real space coordinate of the M mark post 1 in referenced-centric system or geocentric coordinate system；
In actually used, China's referenced-centric system mainly includes Beijing Geodetic Coordinate System 1954 and Xi'an Geodetic Coordinate System 1980, the earth's core
Coordinate system mainly includes 2000 Chinese earth coordinates (CGCS2000) and 1984 world geodetic systems (WGS84).
The drafting of step 5, route section：The real space coordinate of the M mark post 1 that computer 7 will be obtained in step 4
The direction being incremented by along x coordinate is in smoothing junction successively, draws route section.
The above, is only presently preferred embodiments of the present invention, and not the present invention is imposed any restrictions, every according to the present invention
Any simple modification, change and equivalent structure change that technical spirit is made to above example, still fall within skill of the present invention
In the protection domain of art scheme.
Claims (3)
1. the route section plotting board of digital photographing is based on, it is characterised in that：Assigned on the ground and for true including M
Determine the mark post (1) of route section (2) position, and be arranged on the route section (2) side for acquisition process mark post
(1) the mapping terminal of parameter, wherein M=2n+1, n are integer and n >=1；Mark post (1) is including mobile jib (1-4) and is arranged on mobile jib
The locating piece (1-3) of (1-4) bottom, first rotating shaft (1-1) is provided with mobile jib (1-4) and the link position of locating piece (1-3),
Be rotatablely equipped with two from bar (1-2) in first rotating shaft (1-1), two from bar (1-2) respectively positioned at the both sides of mobile jib (1-4),
The top of mobile jib (1-4) is provided with the second rotating shaft (1-5) rotated for first laser transmitter (1-6), mobile jib (1-4), from bar
(1-2) and first laser transmitter (1-6) are in the same plane；The mapping terminal is including tripod (5), installed in three pin
Mounting seat (4) on frame (5) and the digital camera (3) in mounting seat (4), the surface of camera lens in digital camera (3)
Or underface is provided with the second laser transmitter perpendicular to route section (2), signal output part and the meter of digital camera (3)
Calculation machine (7) is connected；
Centrally located mark post (1) is middle pile beacon bar in the M mark post (1), and the middle pile beacon bar is arranged in road
On heart line；
The laser beam that the second laser transmitter sends is perpendicular to route section (2) and the mobile jib in the middle pile beacon bar
On straight line where (1-4)；
The mobile jib (1-4) and expansion link is from bar (1-2), the length of the expansion link is L meets：1m≤l≤
1.5m；
The rotation angle from bar (1-2) between first rotating shaft (1-1) and mobile jib (1-4) is 0 °~90 °.
2. according to the route section plotting board based on digital photographing described in claim 1, it is characterised in that：The circuit
In plane where M mark post (1) of the cross section (2) positioned at coplanar laying.
3. a kind of method that route section mapping is carried out using device as claimed in claim 1, it is characterised in that the method bag
Include following steps：
Plan-position residing for the surveyed and drawn route section of step one, determination：First, the middle stake is installed on the center line on road
Mark post, be fully deployed the middle pile beacon bar two adjust the azimuth of the middle pile beacon bar from bar (1-2), determine that circuit is horizontal
The reference position of section (2)；Then, N number of mark post (1) is respectively mounted in the both sides of the middle pile beacon bar, opens 2N mark post (1)
In plane described in the surface sweeping of respective first laser transmitter (1-6) where middle pile beacon bar, it is determined that the route section surveyed and drawn
(2), wherein, N=2n-1, the middle pile beacon bar be arranged on satellite sounding obtain middle stake point on, known to middle stake point coordinates；
Step 2, determine digital camera position and gather image information to be uploaded to computer：First, the second laser hair is adjusted
The vertical directive route section (2) of laser beam that emitter sends and the laser beam that the second laser transmitter sends with it is described in
Straight line intersection in pile beacon bar where mobile jib (1-4)；Then, the focal length of adjustment digital camera (3), by both sides in M mark post (1)
Mark post (1) visual field in the digital camera (3) border inner side, press shutter and obtain the M image information of mark post (1) and general
The image information is uploaded to computer (7)；
Step 3, Image Information Processing simultaneously calculate the coordinate of each mark post：Position of each mark post (1) on image is demarcated, institute is searched
Middle pile beacon bar position is stated, with the first rotating shaft (1-1) of the middle pile beacon bar for the origin of coordinates sets up rectangular coordinate system o-xz, with institute
Straight line where stating the mobile jib (1-4) of pile beacon bar is the z-axis of rectangular coordinate system o-xz, with the middle pile beacon bar from bar (1-
2) straight line where is the x-axis of rectangular coordinate system o-xz, calculates the seat of each mark post (1) respectively to its both sides from the middle pile beacon bar
Mark, the Coordinate calculation method all same of two neighboring mark post (1)；
When two neighboring mark post (1) to that need to calculate carries out coordinate calculating, process is as follows：
Step 301, setting auxiliary magnet：Generated at random on domatic between two neighboring mark post on image by computer (7)
Auxiliary magnet A；
Step 302, according to formulaIn calculation procedure 301 positioned at auxiliary magnet A side mark post along the x-axis direction
Deformation coefficient k1With the deformation coefficient k along the x-axis direction of the opposite side mark post positioned at auxiliary magnet A2, wherein, i is from bar in mark post (1)
The quantity that (1-2) launches, i=1 or 2, laiFor deformation coefficient is k on image1Mark post correspondence i-th length from bar, lbiFor
Deformation coefficient is k on image2Mark post correspondence i-th length from bar；
Step 303, according to formulaCalculate deformation coefficient k along the x-axis direction at auxiliary magnet AA, wherein, sa
To be located at the distance of the side mark post of auxiliary magnet A, s on auxiliary magnet A along the x-axis direction range imagebFor auxiliary magnet A along the x-axis direction
The distance of the opposite side mark post of auxiliary magnet A is located on range image；
Step 304, according to formulaCalculate two neighboring mark post (1) distance L in the direction of the x axisx,
Wherein, LaIt is distance parameter s on imageaCorresponding actual range, L in actual fieldbIt is distance parameter s on imagebIn reality
Corresponding actual range in scene；
Step 305, according to formulaPositioned at the side mark post deformation along the z-axis direction of auxiliary magnet A in calculation procedure 301
Coefficient k1' and positioned at the opposite side mark post deformation coefficient k' along the z-axis direction of auxiliary magnet A2, wherein, l'aTo deform system on image
Number is k1' mark post correspondence mobile jib length, lb' it is that deformation coefficient is k' on image2Mark post correspondence mobile jib length；
Step 306, according to formulaCalculate deformation coefficient k' along the z-axis direction at auxiliary magnet AA, wherein,
s'aTo be located at the distance of the side mark post of auxiliary magnet A, s' on auxiliary magnet A along the z-axis direction range imagebIt is auxiliary magnet A along z-axis side
To the distance of the opposite side mark post that auxiliary magnet A is located on range image；
Step 307, according to formulaCalculate two neighboring mark post (1) distance L in the z-axis directionz,
Wherein, L'aIt is distance parameter s' on imageaCorresponding actual range, L in actual fieldbIt is distance parameter s' on imageb
Corresponding actual range in actual field；
Step 308, step 302 to step 307 is repeated several times, until completing each mark post (1) coordinate in rectangular coordinate system o-xz
Calculating process；
Step 4, space coordinates conversion：By computer (7) using coordinate transformation method to being distributed in rectangular coordinate system o-xz
The coordinate of M mark post (1) carry out Coordinate Conversion, by the Coordinate Conversion of the M mark post (1) in rectangular coordinate system o-xz to joining the heart
Coordinate system or geocentric coordinates are fastened, and obtain real space coordinate of the M mark post (1) in referenced-centric system or geocentric coordinate system；
The drafting of step 5, route section：The real space coordinate of the M mark post (1) that computer (7) will be obtained in step 4
The direction being incremented by along x coordinate is in smoothing junction successively, draws route section.
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