CN107729707A - Engineering construction setting out method based on mobile augmented reality technology and BIM - Google Patents
Engineering construction setting out method based on mobile augmented reality technology and BIM Download PDFInfo
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- CN107729707A CN107729707A CN201711275425.3A CN201711275425A CN107729707A CN 107729707 A CN107729707 A CN 107729707A CN 201711275425 A CN201711275425 A CN 201711275425A CN 107729707 A CN107729707 A CN 107729707A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/13—Architectural design, e.g. computer-aided architectural design [CAAD] related to design of buildings, bridges, landscapes, production plants or roads
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
- G06Q50/08—Construction
Abstract
The invention discloses a kind of engineering construction setting out method based on mobile augmented reality technology and BIM, including the preparation of dummy model and platform, the job site virtually with the conversion of job site coordinate and matching, job site coordinate elevation real-time exhibition and information placements, the job site positioning of dummy model, the distance measuring of job site, Virtual Construction boost line are drawn, the storage of dummy model positional information and shared.The invention has the advantages that mobile augmented reality technology is applied in engineering site construction, realize and dummy model is accurately placed at job site by former design size, show the image after Practical Completion in advance, the each side such as unwrapping wire, coordinate and elevation inquiry, accurate distance measurement are excavated in engineering construction, play auxiliary Contraction in Site, accelerate understanding of each side to engineering, reach accelerating construction progress, save engineering construction investment purpose.
Description
Technical field
The present invention relates to augmented reality field, more particularly, to the engineering based on mobile augmented reality technology and BIM
Construction lofting method.
Background technology
Augmented reality (English：Augmented Reality, abbreviation AR), it is that one kind is superimposed virtually in reality scene
Word, image, the visualization technique of threedimensional model.With smart mobile phone, Ipad（Notebook computer, tablet personal computer）Deng mobile whole
The lifting of end equipment performance, and correlation space cognition technology are perfect, and augmented reality progressively moves towards mobile terminal from PC ends,
Move towards to perceive reality three-dimensional from the two-dimentional augmented reality of the simple picture of superposition, word, and can be accurate on realistic space
Place the three-dimensional enhanced reality of three dimensional virtual models.At present, mobile augmented reality technology is only applied public auxiliary with some in game
Help in service, and be the application of two-dimentional augmented reality mostly, be attempted to mobile augmented reality technology and architecture information mould
Type (English：Building Information Modeling, abbreviation：BIM) it is combined and is constructed applied to engineering site, but mesh
It is preceding to be not yet seen in the report about engineering site construction application moving three dimension augmented reality.
The content of the invention
Present invention aims at a kind of engineering construction setting out method based on mobile augmented reality technology and BIM is provided, in fact
Now aid in site operation, accelerating construction progress, reduce investment outlay.
To achieve the above object, the present invention takes following technical proposals：
Engineering construction setting out method of the present invention based on mobile augmented reality technology and BIM, including dummy model and platform
Preparation, virtually the conversion and matching with job site coordinate, job site coordinate elevation real-time exhibition and information are placed, are virtual
The job site positioning of model, the job site of the distance measuring of job site, Virtual Construction boost line are drawn, dummy model position
The storage of confidence breath is with sharing；
The preparation method of the dummy model and platform is：By the way that Three-dimensional Design Software will be used as Microstation is built
Complete engineering Three Dimensional Design Model, is exported in the Scenekit d engines of Mac systems, and use with DAE forms
The developing instrument of more than Xcode9.0 versions is based on Arkit interface exploitation systems, and installs on the mobile terminal device, completes empty
The preparation of analog model and scene are placed；
The virtually conversion with job site coordinate and the matching process, are carried out as steps described below：
Step 1, the application system based on Arkit interface exploitations is established, i.e.,：When mobile terminal device is built automatically when application starts
A virtual coordinate system is found, original is in the camera position of the mobile terminal device when virtual coordinate system is opened using application
Point, using mobile terminal device left and right directions as X-axis, using vertical direction as Y-axis, using fore-and-aft direction as Z axis；
Step 2, by the way that the Quick Response Code with the live coordinate information of stake point is attached on the stake point of job site two；
Step 3, mobile terminal device is placed in and scanned thereon as low coverage directly over first of the origin of coordinates stake point
Quick Response Code, the live coordinate of the site coordinate system of this point is obtained, and synchronously obtain mobile terminal device now in virtual coordinates
Virtual coordinates in system；By contrasting the live coordinate and the virtual coordinates, the origin of coordinates position of virtual coordinate system is corrected；
Step 4, in terms of adjustment in direction, pass through scan second stake point on Quick Response Code, obtain second stake point institute
The live coordinate of site coordinate system, and now virtual coordinates of the mobile terminal device in virtual coordinate system are stated, then by several
What, which is calculated, obtains the angle that virtual coordinates X-axis sensing East and West direction needs to rotate, and carries out respective angles to the virtual coordinates X-axis
Rotation, by virtual coordinates Z axis invert 180 degree, so as to be finally completed the matching of virtual coordinates and live coordinate；
The job site coordinate elevation real-time exhibition is with information laying method：By ARKit interfaces with the frequency of 30 times per second
Rate obtains the real-time virtual coordinates of the mobile terminal device, after Coordinate Conversion, is accordingly obtained with the frequency of 30 times per second
The live coordinate of mobile terminal device at the construction field (site) is obtained, then by building live coordinate described in label control real-time displays
Information；It is by the method that live coordinate information is placed at the construction field (site)：By SceneKit interfaces one is built in specified location
Spherical model and a verbal model, and in placement at the construction field (site), the content of word is mobile terminal device real-time coordinates
X, Y, Z value；
The job site localization method of the dummy model is：Dummy model size is set by full-size(d), mobile terminal is set
Purchase and place dummy model after the basic point scene coordinate position of the dummy model, and by mobile terminal device screen
Gesture rotation process, i.e. double-contact rotation process, dummy model is carried out along Z-direction be vertical direction rotation, make void
Analog model is navigated in the construction scene of job site；
The distance measuring method of the job site is：Including being measured with mobile terminal device screen contact position, and with movement
Terminal device screen contact ray measures two methods with job site plane point of intersection position；
When measuring job site size with mobile terminal device screen contact position, mobile terminal device is obtained in real time and is measured
Stop screen contact position coordinate information, then obtains measurement result by range formula；
When measuring job site size with mobile terminal device screen contact ray and job site plane point of intersection position, in real time
Mobile terminal device measurement terminal screen contact position is obtained, and with the screen contact position vertical screen divergent-ray with moving
The job site plane that dynamic terminal device detects intersects, with intersecting point coordinate amount of calculation ranging twice from；
The job site method for drafting of the Virtual Construction boost line is：Point coordinates is controlled to be adopted as foundation using boost line of constructing
Virtual Construction boost line is drawn in two ways, is respectively：First, drawn in a manner of mobile terminal device screen contact position outstanding
Empty three-dimensional construction boost line；2nd, drawn in a manner of mobile terminal device screen contact ray and job site plane point of intersection
Paste the construction boost line on ground；The basic model structure that the drafting of above two Virtual Construction boost line is provided using Scenekit
Formation function line model, and be placed on corresponding job site position；
The storage of the dummy model positional information is with sharing method：By preserve place at the construction field (site) the ID of middle model,
Base position, the model of model are taken identical along the rotation angle information that Z axis is vertical direction to background data base, other users
Two-dimensional code scanning mode match coordinate after, by obtaining the model information of the background data base, system is automatically with same position
Put and place same model into the scene of job site with angle, so as to realize the storage of dummy model positional information together
Enjoy.
The invention has the advantages that mobile augmented reality technology is applied in engineering site construction, realizes and press dummy model
Former design size is accurately placed at job site, shows the image after Practical Completion in advance, and unwrapping wire, coordinate are excavated in engineering construction
The each side such as measure with elevation inquiry, accurate distance, play auxiliary Contraction in Site, accelerate understanding of each side to engineering, reach
To accelerating construction progress, save engineering construction investment purpose.
Brief description of the drawings
Fig. 1 is the applicating flow chart of the present invention.
Fig. 2 is virtual coordinate system of the present invention and site coordinate system conversion and the flow chart matched.
Fig. 3 is virtual coordinate system of the present invention and the schematic diagram of site coordinate system conversion.
Fig. 4 is the principle frame of the present invention that the dummy model information in placing at the construction field (site) is stored and shared
Figure.
Embodiment
Embodiments of the invention are elaborated below in conjunction with the accompanying drawings, the present embodiment using technical solution of the present invention before
Put and implemented, give detailed embodiment and specific operating process, but protection scope of the present invention is not limited to down
State embodiment.
As shown in Fig. 1-4, the engineering construction setting out method of the present invention based on mobile augmented reality technology and BIM, bag
Include the preparation of dummy model and platform, virtually the conversion and matching with job site coordinate, job site coordinate elevation are opened up in real time
Show and show with job site positioning, the construction of the distance measuring of job site, Virtual Construction boost line of information placement, dummy model
Field is drawn, the storage of dummy model positional information is with sharing；
The preparation method of dummy model and platform is：By by using the complete of Three-dimensional Design Software such as Microstation structures
Engineering Three Dimensional Design Model, exported to DAE forms in the Scenekit d engines of Mac systems, and use Xcode9.0 with
The developing instrument of upper version (is integrated on more than Xcode9.0 developing instruments) development system based on Arkit interfaces, and is arranged on
On the mobile terminal device of the versions of IOS more than 11.0, the preparation and scene of completing dummy model are placed.
Want dummy model being accurately placed in job site, it is necessary to realize the conversion of virtual coordinates and live coordinate with
Matching.Because engineering construction scene often uses the site coordinate system based on spud pile point, the coordinate system is with certain spud pile
Point is the origin of coordinates, using east-west direction as X-axis, using North and South direction as Y-axis, using vertical direction as Z axis.
After engineering Three Dimensional Design Model is imported into the d engines such as Scenekit, increase using Arkit etc. is mobile
Strong real interface exploitation engineering mobile augmented reality application system, as shown in Fig. 2 i.e.：When mobile terminal device starts in application
Shi Zidong establishes a virtual coordinate system, when the virtual coordinate system is opened with application where the camera of the mobile terminal device
Position is origin, using mobile terminal device left and right directions as X-axis, using vertical direction as Y-axis, using fore-and-aft direction as Z axis；Wherein to
The right side, it is that just, in the follow-up moving process of mobile terminal device, if do not made an amendment, the virtual coordinate system will upwards, backward
It can keep constant, including origin and each direction of principal axis, until application terminates.
Based on the mobile augmented reality interface function such as Arkit, application system be based on mobile terminal device motion sensor and
Camera image carries out the space coordinates identification of real-world objects, and can detect real world plane, such as ground, desktop,
Thus during dummy model can be placed at the construction field (site), Visual window is used as by mobile terminal device and freely watched and manipulation.
As shown in figure 3, in the construction of engineering construction scene 1, engineering setting out is often using the scene seat based on spud pile point
Mark system, i.e., using spud pile point as the origin of coordinates, using east-west direction as X-axis, eastwards for just, using North and South direction as Y-axis, northwards for
Just, using vertical direction as Z axis, upwards for just.
As shown in Figure 2,3, virtual coordinates with live coordinate change and concretely comprised the following steps with matching by the present invention：
Step 1：By adding two-dimensional code scanning function in the application（Mature technology）, in advance will be by stake point information (including stake point
Type, as the stake point or common stake point of origin, the live coordinate of stake point) Quick Response Code of generation is pasted onto two stake points of selection
On, wherein first stake point is the live origin of coordinates, second stake is put corrects for direction.
Step 2：By mobile terminal device, closely surface scanning is used as on first stake point of the live origin of coordinates
The Quick Response Code of stickup, the identification of the live origin of coordinates is carried out, obtain live coordinate of this point at the scene in coordinate system（Such as）, and synchronous recording mobile terminal device is now in the position of virtual coordinate system, i.e. virtual coordinates（By
ARKIT interface functions provide, such as）.
Step 3：Then mobile terminal device is moved at second stake point, by the two dimension for scanning second stake point
Code, obtains the live coordinate of this point（Such as）, and synchronous recording mobile terminal device is now virtual
The position of coordinate system, i.e. virtual coordinates（Such as）.
Step 4：Virtual coordinate system and origin offset, the direction deviation angle of site coordinate system are calculated, principle is shown in Fig. 2,
Its algorithm is：Origin offset, two stake point connecting line segments
With the angle of positive north orientation, the angle is also the angle with the local site coordinate system Y-axis based on spud pile point simultaneously, using two
Stake is put live coordinate and calculated：；The angle of two stake point connecting line segments and virtual coordinate system Z axis, is adopted
Calculated with two stake point virtual coordinates：, then virtual coordinates X-axis rotate to East and West direction（Live coordinate X
Direction of principal axis）The angle for needing to rotate is：θ=＆ R+ ＆ V-pi/2；Formula：＆ R=ATAN () are arctan function, and π is circumference
Rate.
Step 5：Virtual coordinate system is changed, it is matched local site coordinate system；Origin skew is carried out first, partially
Shifting amount (- ＆ x ,-＆ y ,-＆ z), then rotates X-axis for axle center with Y-axis (vertically to), rotation amount θ, finally inverts Z axis, make
It is matched with the Y-axis of site coordinate system.
Live coordinate elevation real-time exhibition is with information laying method：After virtual coordinates are matched with live coordinate,
As long as then keeping applying opening, mobile terminal device is equivalent to a high-precision GPS instrument, can by ARKit interfaces
The real-time virtual coordinate of mobile terminal is obtained with the frequency of 30 times per second, after virtual coordinates conversion, frequency that accordingly can be 30 times per second
Rate obtain mobile terminal device at the construction field (site) 1 live coordinate, then shown in real time by building the controls such as label in the application
Show live coordinate information；By virtual coordinates information place at the construction field (site) 1 method be：First, mobile terminal device is placed in
The position of job site 1 of setting, in two basic models of formation function that the position is provided using SceneKit interfaces, including one
Individual simple spherical model and a verbal model, the center of ball are arranged on the virtual coordinates position shown by mobile terminal device
Put, radius determines according to visual effect, and the content of word is the X of the virtual coordinates, Y, and Z values, wherein Z values are elevation, finally
To make verbal model display effect more preferable, verbal model is set to make it all the time towards shifting using the center of ball as basic point real time rotation
Dynamic terminal device, equivalent to user oriented.
The job site localization method of dummy model is：Complete the conversion of virtual coordinates and live coordinate and coordinate elevation
It is the accurate field Positioning Creates condition of dummy model after information real-time show；It is 1 to set dummy model ratio first:1,
As former design size, write down basic point scene coordinate (each control of each building in engineering three dimensional design achievement of dummy model
Point processed, basic point live coordinate known to), and be converted into the live local coordinate based on stake point；Then mobile terminal device is put
At the live coordinate shown in basic point, dummy model is placed into job site 1, finally by mobile terminal device screen
Gesture rotation process (double-contact rotation) model should be mutually carried out along Z axis（Vertical direction）Rotation so that dummy model essence
Really navigate in the scene of job site 1.
The distance measuring method of job site is：It is frequently necessary to carry out the measurement of size at engineering construction scene 1, based on shifting
Dynamic augmented reality can realize that two amounts surveys mode, i.e., measured with mobile terminal device screen contact position, and with mobile whole
End equipment screen contact ray measures with the plane point of intersection position of job site 1, to meet different measurement demands.Specially：When
When measuring 1 size of job site with mobile terminal device contact point mode, mobile terminal device measurement terminal screen is obtained in real time
Contact position coordinate information（There is provided by ARKit interfaces）, including X, Y of beginning and end, Z coordinate, then pass through range formula
Measurement result is obtained, formula is：L =；When in a manner of ray intersection
When measuring 1 size of job site, mobile terminal device measurement terminal screen contact position is obtained in real time, and with screen contact position
Vertical screen divergent-ray is put, is intersected with the plane of job site 1 that mobile terminal device detects, this intersection point is applying for measurement
1 terminal of work scene, is then calculated measurement result again by range formula.
The job site method for drafting of Virtual Construction boost line is：At the scene in construction process, it is often necessary to carry out
Construct the operation of setting-out, such as excavation line, take up an area line, building position line, typically take professional GPS device position after to splash
The modes such as pulverized limestone are carried out, less efficient.By applying mobile augmented reality technology, can accurately be painted by mobile terminal device
Above-mentioned construction boost line is made, efficiency high simultaneously saves material, and can draw hanging three-dimensional construction boost line.Specially：Enter first
The matching of row system coordinates, then according to the design coordinate control point of boost line（There is provided by engineering design）, use with mobile whole
The mode of end equipment screen contact position draws hanging three-dimensional construction boost line, uses and is penetrated with mobile terminal device screen contact
The mode of line and the plane point of intersection of job site 1 draws the construction boost line on patch ground；The drafting of two kinds of boost lines uses
The basic model constructing function structure line model that Scenekit is provided, and be placed on the position of job site 1 of corresponding reality.
The storage of dummy model positional information is with sharing method：As shown in figure 4, in a like fashion will when each user adopts
After virtual coordinates are matched with live coordinate, place at the construction field (site) 1 model information then can be achieved storage and with multiple use
Family is shared, and after dummy model is accurately placed into real construction site by a user, passes through the ID of preservation model, the basic point of model
Position, model are along Z axis（Vertical direction）The information such as the anglec of rotation obtain back-end data immediately to background data base, other users
The model information in storehouse, same model is placed into the scene of real job site 1 with same location and angle automatically, updates it
Place the model information at the construction field (site) in 1, so as to realize the storage of dummy model positional information with it is shared；When each user applies
After closing, after being again turned on applying and carrying out coordinate matching, it again may be by obtaining last time each model in background data base and put
The positional information put, and the position that corresponding model was recorded in last time, the preservation and reading of implementation model placement information are placed automatically
Take function.
Claims (1)
- A kind of 1. engineering construction setting out method based on mobile augmented reality technology and BIM, it is characterised in that：Including dummy model Preparation with platform, virtually the conversion and matching with job site coordinate, job site coordinate elevation real-time exhibition and information are put Put, the positioning of the job site of dummy model, the job site of the distance measuring of job site, Virtual Construction boost line are drawn, are empty The storage of analog model positional information is with sharing；The preparation method of the dummy model and platform is：By the way that Three-dimensional Design Software will be used as Microstation is built Complete engineering Three Dimensional Design Model, is exported in the Scenekit d engines of Mac systems, and use with DAE forms The developing instrument of more than Xcode9.0 versions is based on Arkit interface exploitation systems, and installs on the mobile terminal device, completes empty The preparation of analog model and scene are placed；The virtually conversion with job site coordinate and the matching process, are carried out as steps described below：Step 1, the application system based on Arkit interface exploitations is established, i.e.,：When mobile terminal device is built automatically when application starts A virtual coordinate system is found, original is in the camera position of the mobile terminal device when virtual coordinate system is opened using application Point, using mobile terminal device left and right directions as X-axis, using vertical direction as Y-axis, using fore-and-aft direction as Z axis；Step 2, by the way that the Quick Response Code with the live coordinate information of stake point is attached on the stake point of job site two；Step 3, mobile terminal device is placed in and scanned thereon as low coverage directly over first of the origin of coordinates stake point Quick Response Code, the live coordinate of this point site coordinate system is obtained, and synchronously obtain mobile terminal device now in virtual coordinate system In virtual coordinates；By contrasting the live coordinate and virtual coordinates, the origin of coordinates position of virtual coordinate system is corrected；Step 4, in terms of adjustment in direction, pass through scan second stake point on Quick Response Code, obtain second stake point institute Live coordinate, and now virtual coordinates of the mobile terminal device in virtual coordinate system are stated, is then calculated and is somebody's turn to do by geometry Virtual coordinates X-axis points to the angle that East and West direction needs to rotate, and the rotation of respective angles is carried out to the virtual coordinates X-axis, by void Quasi-coordinate Z axis inverts 180 degree, so as to be finally completed the matching of virtual coordinates and live coordinate；The job site coordinate elevation real-time exhibition is with information laying method：By ARKit interfaces with the frequency of 30 times per second Rate obtains the real-time virtual coordinates of the mobile terminal device, after Coordinate Conversion, is accordingly obtained with the frequency of 30 times per second The live coordinate of mobile terminal device at the construction field (site) is obtained, then by building live coordinate described in label control real-time displays Information；It is by the method that live coordinate information is placed at the construction field (site)：By SceneKit interfaces one is built in specified location Spherical model and a verbal model, and in placement at the construction field (site), the content of word is mobile terminal device real-time coordinates X, Y, Z value；The job site localization method of the dummy model is：Dummy model size is set by full-size(d), mobile terminal is set Purchase and place dummy model after the basic point scene coordinate position of the dummy model, and by mobile terminal device screen Gesture rotation process, i.e. double-contact rotation process, dummy model is carried out along Z-direction be vertical direction rotation, make void Analog model is navigated in the construction scene of job site；The distance measuring method of the job site is：Including being measured with mobile terminal device screen contact position, and with movement Terminal device screen contact ray measures two methods with job site plane point of intersection position；When measuring job site size with mobile terminal device screen contact position, mobile terminal device is obtained in real time and is measured Stop screen contact position coordinate information, then obtains measurement result by range formula；When measuring job site size with mobile terminal device screen contact ray and job site plane point of intersection position, in real time Mobile terminal device measurement terminal screen contact position is obtained, and with the screen contact position vertical screen divergent-ray with moving The job site plane that dynamic terminal device detects intersects, with intersecting point coordinate amount of calculation ranging twice from；The job site method for drafting of the Virtual Construction boost line is：Point coordinates is controlled to be adopted as foundation using boost line of constructing Virtual Construction boost line is drawn in two ways, is respectively：First, drawn in a manner of mobile terminal device screen contact position outstanding Empty three-dimensional construction boost line；2nd, drawn in a manner of mobile terminal device screen contact ray and job site plane point of intersection Paste the construction boost line on ground；The basic model structure that the drafting of above two Virtual Construction boost line is provided using Scenekit Formation function line model, and be placed on corresponding job site position；The storage of the dummy model positional information is with sharing method：By preserve place at the construction field (site) the ID of middle model, Base position, the model of model are taken identical along the rotation angle information that Z axis is vertical direction to background data base, other users Two-dimensional code scanning mode match coordinate after, by obtaining the model information of the background data base, system is automatically with same position Put and place same model into the scene of job site with angle, so as to realize the storage of dummy model positional information together Enjoy.
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| CN116361996A (en) * | 2023-02-10 | 2023-06-30 | 广州市第三市政工程有限公司 | Unmanned aerial vehicle-based steel mesh frame modeling method, system and storage medium |
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