CN107729707B - Engineering construction lofting method based on mobile augmented reality technology and BIM - Google Patents
Engineering construction lofting method based on mobile augmented reality technology and BIM Download PDFInfo
- Publication number
- CN107729707B CN107729707B CN201711275425.3A CN201711275425A CN107729707B CN 107729707 B CN107729707 B CN 107729707B CN 201711275425 A CN201711275425 A CN 201711275425A CN 107729707 B CN107729707 B CN 107729707B
- Authority
- CN
- China
- Prior art keywords
- virtual
- construction
- construction site
- mobile terminal
- model
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000010276 construction Methods 0.000 title claims abstract description 122
- 238000000034 method Methods 0.000 title claims abstract description 42
- 230000003190 augmentative effect Effects 0.000 title claims abstract description 24
- 238000005516 engineering process Methods 0.000 title claims abstract description 20
- 238000005259 measurement Methods 0.000 claims abstract description 14
- 238000013461 design Methods 0.000 claims abstract description 10
- 238000002360 preparation method Methods 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 238000011161 development Methods 0.000 claims description 5
- 238000004364 calculation method Methods 0.000 claims description 4
- 238000012937 correction Methods 0.000 claims description 3
- 238000009412 basement excavation Methods 0.000 abstract description 3
- 230000006870 function Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
Images
Classifications
-
- 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
-
- 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—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
- G06Q50/08—Construction
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Geometry (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Business, Economics & Management (AREA)
- Primary Health Care (AREA)
- Economics (AREA)
- Strategic Management (AREA)
- General Business, Economics & Management (AREA)
- Marketing (AREA)
- Human Resources & Organizations (AREA)
- General Health & Medical Sciences (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Tourism & Hospitality (AREA)
- Health & Medical Sciences (AREA)
- Structural Engineering (AREA)
- Computational Mathematics (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Pure & Applied Mathematics (AREA)
- Evolutionary Computation (AREA)
- General Engineering & Computer Science (AREA)
- Processing Or Creating Images (AREA)
Abstract
The invention discloses an engineering construction lofting method based on a mobile augmented reality technology and BIM (building information modeling), which comprises the steps of preparing a virtual model and a platform, converting and matching coordinates of a virtual and construction site, displaying and placing information in real time of the elevation of the coordinates of the construction site, positioning the construction site of the virtual model, measuring the distance of the construction site, drawing the construction site of a virtual construction auxiliary line, and storing and sharing the position information of the virtual model. The invention has the advantages that the mobile augmented reality technology is applied to the construction of the engineering site, the virtual model is accurately placed on the construction site according to the original design size, the image of the finished engineering is displayed in advance, and the method plays a role in assisting the site construction operation, accelerating the understanding of each party to the engineering, and achieving the purposes of accelerating the construction progress and saving the engineering construction investment in the aspects of excavation and paying off, coordinate and elevation query, accurate distance measurement and the like of the engineering construction.
Description
Technical Field
The invention relates to the technical field of augmented reality, in particular to an engineering construction lofting method based on a mobile augmented reality technology and BIM.
Background
Augmented Reality (AR for short) is a visualization technology for superimposing virtual characters, images and three-dimensional models in a real scene. With the improvement of the performance of mobile terminal equipment such as smart phones and Ipads (notebook computers and tablet computers) and the improvement of related space perception technologies, the augmented reality technology gradually moves from a PC (personal computer) end to a mobile end, moves from two-dimensional augmented reality in which simple pictures and characters are superimposed to a perceived real three-dimensional space, and can accurately place three-dimensional augmented reality of a three-dimensional virtual model in the real space. At present, the mobile augmented reality technology is only applied to games and some public auxiliary services, and is mostly applied to the two-dimensional augmented reality technology, people try to apply the mobile augmented reality technology to engineering site construction by combining with a Building Information model (English: Building Information Modeling, abbreviation: BIM), but at present, reports about the application of the mobile three-dimensional augmented reality technology to the engineering site construction are not seen.
Disclosure of Invention
The invention aims to provide an engineering construction lofting method based on a mobile augmented reality technology and BIM, which is used for realizing auxiliary site construction, accelerating construction progress and saving investment.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention relates to an engineering construction lofting method based on a mobile augmented reality technology and BIM (building information modeling), which comprises the steps of preparing a virtual model and a platform, converting and matching coordinates of a virtual and construction site, displaying and placing information in real time the elevation of coordinates of the construction site, positioning the construction site of the virtual model, measuring the distance of the construction site, drawing the construction site of a virtual construction auxiliary line, and storing and sharing the position information of the virtual model;
the preparation method of the virtual model and the platform comprises the following steps: the method comprises the steps that a complete engineering three-dimensional design model constructed by three-dimensional design software such as Microstation is exported to a scene kit three-dimensional engine of a Mac system in a DAE format, a development tool with a version of more than Xcode9.0 is adopted to develop the system based on an Arkit interface and is installed on mobile terminal equipment, and preparation and field placement of a virtual model are completed;
the method for converting and matching the virtual and construction site coordinates is carried out according to the following steps:
step 2, attaching the two-dimensional code with the pile point site coordinate information to two pile points on a construction site;
step 3, placing the mobile terminal equipment right above the first pile point serving as the origin of coordinates and scanning the two-dimensional code on the pile point in a short-distance mode to obtain the field coordinates of the field coordinate system of the pile point and synchronously obtaining the virtual coordinates of the mobile terminal equipment in the virtual coordinate system at the moment; correcting the position of the origin of the coordinates of a virtual coordinate system by comparing the field coordinates with the virtual coordinates;
step 4, in the aspect of direction correction, acquiring the field coordinates of the field coordinate system of the second pile point and the virtual coordinates of the mobile terminal device in the virtual coordinate system at the moment by scanning the two-dimensional code on the second pile point, then acquiring an angle of the virtual coordinate X axis which points to the east-west direction and needs to rotate through geometric calculation, rotating the virtual coordinate X axis by a corresponding angle, and reversing the virtual coordinate Z axis by 180 degrees, thereby finally completing the matching of the virtual coordinate and the field coordinates;
the construction site coordinate elevation real-time display and information placement method comprises the following steps: obtaining the real-time virtual coordinate of the mobile terminal equipment at the frequency of 30 times per second through an ARKit interface, correspondingly obtaining the field coordinate of the mobile terminal equipment at a construction field at the frequency of 30 times per second after coordinate conversion, and then displaying the field coordinate information in real time by constructing a label control; the method for placing the site coordinate information on the construction site comprises the following steps: constructing a ball model and a character model at a specified position through a SceneKit interface, and placing the ball model and the character model in a construction site, wherein the content of characters is X, Y and Z values of real-time coordinates of the mobile terminal equipment;
the construction site positioning method of the virtual model comprises the following steps: setting the size of a virtual model according to the real size, placing a mobile terminal device at the site coordinate position of a base point of the virtual model, then placing the virtual model, and rotating the virtual model along the Z-axis direction, namely the vertical direction through gesture rotation operation, namely double-contact rotation operation, on the screen of the mobile terminal device so as to position the virtual model in the construction scene of a construction site;
the distance measuring method of the construction site comprises the following steps: the method comprises two methods of measuring the screen contact position of the mobile terminal equipment and measuring the intersection point position of a screen contact ray of the mobile terminal equipment and a construction site plane;
when the size of a construction site is measured by the screen contact position of the mobile terminal equipment, acquiring the coordinate information of the screen contact position of the starting and stopping point measured by the mobile terminal equipment in real time, and then obtaining a measurement result through a distance formula;
when the dimension of a construction site is measured by the intersection point position of a screen contact ray of the mobile terminal equipment and a construction site plane, the screen contact position of a measured start and stop point of the mobile terminal equipment is obtained in real time, the screen contact position is vertical to a screen emission ray and is intersected with the construction site plane detected by the mobile terminal equipment, and the measurement distance is calculated by the intersection point coordinates of the two times;
the construction site drawing method of the virtual construction auxiliary line comprises the following steps: the control point coordinates of the construction auxiliary lines are used as the basis, and the virtual construction auxiliary lines are drawn by adopting two modes, which are respectively: firstly, drawing a suspended three-dimensional construction auxiliary line in a mode of a screen contact position of mobile terminal equipment; secondly, drawing a construction auxiliary line of the ground in a mode of intersection point of a screen contact ray of the mobile terminal device and a construction site plane; the two virtual construction auxiliary lines are drawn by adopting a basic model building function provided by a scene kit to build a line model and are placed at corresponding construction site positions;
the method for storing and sharing the position information of the virtual model comprises the following steps: the ID of the model, the base point position of the model and the rotation angle information of the model in the Z axis, namely the vertical direction, which are placed in the construction site are stored in a background database, other users adopt the same two-dimensional code scanning mode to match the coordinates, and then the model information of the background database is obtained, so that the system automatically places the same model in the scene of the construction site at the same position and angle, and the storage and sharing of the position information of the virtual model are realized.
The invention has the advantages that the mobile augmented reality technology is applied to the construction of the engineering site, the virtual model is accurately placed on the construction site according to the original design size, the image of the finished engineering is displayed in advance, and the method plays a role in assisting the site construction operation, accelerating the understanding of each party to the engineering, and achieving the purposes of accelerating the construction progress and saving the engineering construction investment in the aspects of excavation and paying off, coordinate and elevation query, accurate distance measurement and the like of the engineering construction.
Drawings
Fig. 1 is a flow chart of an application of the present invention.
Fig. 2 is a flow chart of the transformation and matching of the virtual coordinate system and the field coordinate system according to the present invention.
Fig. 3 is a schematic diagram of the transformation between the virtual coordinate system and the field coordinate system according to the present invention.
FIG. 4 is a functional block diagram of the present invention for storing and sharing virtual model information placed in a job site.
Detailed Description
The following describes embodiments of the present invention in detail with reference to the drawings, which are implemented on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are provided, but the scope of the present invention is not limited to the following embodiments.
As shown in fig. 1-4, the engineering construction lofting method based on the mobile augmented reality technology and BIM according to the present invention includes preparation of virtual models and platforms, conversion and matching of virtual and construction site coordinates, real-time display and information placement of construction site coordinate elevations, construction site positioning of virtual models, distance measurement of construction sites, construction site drawing of virtual construction auxiliary lines, and storage and sharing of virtual model position information;
the preparation method of the virtual model and the platform comprises the following steps: a complete engineering three-dimensional design model constructed by three-dimensional design software such as Microstation is exported to a scene kit three-dimensional engine of a Mac system in a DAE format, a development tool with a version of Xcode9.0 or more is adopted to develop the system based on an Arkit interface (integrated on the development tool with the version of Xcode9.0 or more), and the development tool is installed on mobile terminal equipment with the version of IOS 11.0 or more, so that the preparation and the field placement of a virtual model are completed.
To accurately place the virtual model in the construction site, the conversion and matching of the virtual coordinates and the site coordinates must be realized. This is because the engineering construction site often adopts a site coordinate system based on the fixed pile point, and the coordinate system uses a certain fixed pile point as the origin of coordinates, the east-west direction as the X-axis, the north-south direction as the Y-axis, and the vertical direction as the Z-axis.
After the engineering three-dimensional design model is imported into a three-dimensional engine such as a Scenekit, an engineering mobile augmented reality application system is developed by adopting a mobile augmented reality interface such as an Arkit, as shown in FIG. 2, namely: when the application of the mobile terminal equipment is started, automatically establishing a virtual coordinate system, wherein the virtual coordinate system takes the position of a camera of the mobile terminal equipment as an original point when the application is started, and takes the left-right direction of the mobile terminal equipment as an X axis, the vertical direction as a Y axis and the front-back direction as a Z axis; and in the subsequent moving process of the mobile terminal equipment, if the virtual coordinate system is not modified, the virtual coordinate system is kept unchanged, including the original point and the directions of all axes, until the application is finished.
Based on the mobile augmented reality interface functions such as the Arkit and the like, the application system performs space coordinate recognition of real world objects based on the motion sensor of the mobile terminal device and the camera image, and can detect real world planes such as the ground, a desktop and the like, so that the virtual model can be placed in a construction site and can be freely viewed and controlled as a visual window through the mobile terminal device.
As shown in fig. 3, in the construction of the engineering construction site 1, the engineering lofting usually uses a site coordinate system based on the fixed pile point, that is, the fixed pile point is used as the coordinate origin, the east-west direction is used as the X-axis, the east-west direction is positive, the north-south direction is used as the Y-axis, the north-south direction is positive, the vertical direction is used as the Z-axis, and the upward direction is positive.
As shown in fig. 2 and 3, the specific steps of converting and matching the virtual coordinate and the field coordinate in the invention are as follows:
step 1: by adding a two-dimensional code scanning function (mature technology) in the application, a two-dimensional code generated by pile point information (including pile point types, pile points serving as original points or common pile points and pile point site coordinates) is pasted on two selected pile points in advance, wherein the first pile point is the site coordinate original point, and the second pile point is used for direction correction.
Step 2: the two-dimensional code pasted on the first pile point serving as the origin of the site coordinate is scanned right above the mobile terminal device in a close range, the origin of the site coordinate is identified, and the site coordinate (such as the site coordinate) of the pile point in a site coordinate system is obtained (for example
) And synchronously recording the position of the mobile terminal device at that time in the virtual coordinate system, i.e. the virtual coordinates (provided by the ARKIT interface function, e.g. as in the case of the ARKIT interface function)
）。
And step 3: then, the mobile terminal device is moved to a second pile point, and the two-dimensional code of the second pile point is scanned to obtain the site coordinates (such as the site coordinates of the second pile point)
) And synchronously recording the position of the mobile terminal device in the virtual coordinate system at the moment, i.e. the virtual coordinates (e.g. virtual coordinates)
）。
And 4, step 4: calculating the origin offset and the direction offset angle of the virtual coordinate system and the field coordinate system, wherein the principle is shown in FIG. 2, and the algorithm is as follows: offset of origin
Two pile point connecting line segments and the positive north included angle, which is also the included angle with the local site coordinate system Y axis based on the fixed pile point, adopt the calculation of two pile point site coordinates:
(ii) a The included angle between the connecting line segment of the two pile points and the Z axis of the virtual coordinate system is calculated by adopting the virtual coordinates of the two pile points:
then, the angle that the virtual coordinate X-axis needs to rotate to the east-west direction (the field coordinate X-axis direction) is: theta = & R + & V-pi/2; the formula: and R = ATAN () is an arctangent function, and pi is a circumferential ratio.
And 5: converting the virtual coordinate system to match with a local field coordinate system; the origin is first shifted by an offset amount (& X, & Y, & Z), then the X axis is rotated by an amount theta about the Y axis (vertical direction), and finally the Z axis is inverted to match the Y axis of the field coordinate system.
The method for displaying the elevation of the on-site coordinate in real time and placing the information comprises the following steps: after the virtual coordinate is matched with the field coordinate, as long as the application starting state is kept, the mobile terminal device is equivalent to a high-precision GPS instrument, the real-time virtual coordinate of the mobile terminal can be obtained at the frequency of 30 times per second through an ARKit interface, the field coordinate of the mobile terminal device at the construction field 1 can be correspondingly obtained at the frequency of 30 times per second after the virtual coordinate is converted, and then the field coordinate information is displayed in real time by constructing controls such as label and the like in the application; the method for placing the virtual coordinate information on the construction site 1 comprises the following steps: firstly, a mobile terminal device is arranged at a set construction site 1 position, two basic models are constructed at the position by using functions provided by a scene kit interface, the two basic models comprise a simple ball model and a character model, the center position of a ball is arranged at a virtual coordinate position displayed by the mobile terminal device, the radius is determined according to the visual effect, the content of the character is the X, Y and Z values of the virtual coordinate, wherein the Z value is an elevation, and finally, in order to ensure that the display effect of the character model is better, the character model is arranged to rotate in real time by taking the center of the ball as a base point, so that the character model always faces the mobile terminal device and is equivalent to facing a user.
The construction site positioning method of the virtual model comprises the following steps: after the conversion between the virtual coordinates and the field coordinates and the real-time display of coordinate elevation information are completed, conditions are created for the accurate field positioning of the virtual model; firstly, setting a virtual model proportion to be 1:1, namely the original design size, recording site coordinates of a base point of the virtual model (the site coordinates of each control point and the base point of each building in the engineering three-dimensional design result are known), and converting the site coordinates into site local coordinates based on pile points; then, the mobile terminal device is placed at the site coordinates shown by the base point, the virtual model is placed in the construction site 1, and finally, the model is correspondingly rotated along the Z axis (vertical direction) through gesture rotation operation (double-contact rotation) on the screen of the mobile terminal device, so that the virtual model is accurately positioned in the scene of the construction site 1.
The distance measuring method of the construction site comprises the following steps: the dimension measurement is frequently required to be carried out on the engineering construction site 1, and two measurement modes can be realized based on the mobile augmented reality technology, namely the measurement by using the screen contact position of the mobile terminal device and the measurement by using the intersection point position of the screen contact ray of the mobile terminal device and the plane of the construction site 1 so as to meet different measurement requirements. The method specifically comprises the following steps: when the size of a construction site 1 is measured in a contact mode of the mobile terminal equipment, acquiring the coordinate information (provided by an ARKit interface) of the contact position of a screen of a start point and a stop point measured by the mobile terminal equipment in real time, wherein the coordinate information comprises X, Y, Z coordinates of the start point and the stop point, and then obtaining a measurement result through a distance formula, wherein the formula is as follows: l =
(ii) a When the size of the construction site 1 is measured in a ray intersection mode, the screen contact position of the starting and stopping point measured by the mobile terminal device is obtained in real time, rays are emitted by the screen contact position to be vertical to the screen and intersect with the construction site 1 plane detected by the mobile terminal device, the intersection point is the measured starting and stopping point of the construction site 1, and then the measurement result is obtained through calculation of a distance formula.
The construction site drawing method of the virtual construction auxiliary line comprises the following steps: in the field engineering construction process, construction line drawing operation is often required, such as excavation lines, occupied ground lines, building positioning lines and the like, and the construction line drawing operation is generally carried out in a manner of sprinkling lime powder after being positioned by professional GPS equipment, so that the efficiency is low. By applying the mobile augmented reality technology, the construction auxiliary line can be accurately drawn by means of the mobile terminal equipment, the efficiency is high, materials are saved, and the suspended three-dimensional construction auxiliary line can be drawn. The method specifically comprises the following steps: firstly, matching system coordinates, then drawing a suspended three-dimensional construction auxiliary line in a mode of a screen contact position of mobile terminal equipment according to a design coordinate control point (provided by engineering design) of the auxiliary line, and drawing a construction auxiliary line attached to the ground in a mode of an intersection point of a screen contact ray of the mobile terminal equipment and a plane of a construction site 1; and the two auxiliary lines are drawn by adopting a basic model building function provided by the Scenekit to build a line model and are placed at the position of the corresponding practical construction site 1.
The method for storing and sharing the position information of the virtual model comprises the following steps: as shown in fig. 4, after each user matches the virtual coordinates with the site coordinates in the same manner, the model information placed on the construction site 1 can be stored and shared with a plurality of users, after one user accurately places the virtual model on the real construction site, other users immediately obtain the model information of the background database by storing the information such as the ID of the model, the position of the base point of the model, the rotation angle of the model along the Z axis (vertical direction), and the like, automatically place the same model in the same position and angle in the scene of the real construction site 1, and update the model information placed in the construction site 1, thereby realizing the storage and sharing of the position information of the virtual model; after each user application is closed, the application is opened again and coordinate matching is carried out, and similarly, the functions of storing and reading the model placement information can be realized by acquiring the position information of each model placed last time in the background database and automatically placing the position of the corresponding model recorded last time.
Claims (1)
1. A project construction lofting method based on a mobile augmented reality technology and BIM is characterized in that: the method comprises the steps of preparing a virtual model and a platform, converting and matching virtual and construction site coordinates, displaying and placing information in real time of construction site coordinate elevation, positioning the construction site of the virtual model, measuring the distance of the construction site, drawing the construction site of a virtual construction auxiliary line, and storing and sharing the position information of the virtual model;
the preparation method of the virtual model and the platform comprises the following steps: the method comprises the steps that a complete engineering three-dimensional design model constructed by three-dimensional design software Microstation is exported to a scene kit three-dimensional engine of a Mac system in a DAE format, a development tool with the version of Xcode9.0 and more than Xcode9.0 is adopted to develop the system based on an Arkit interface and is installed on mobile terminal equipment, and preparation and field placement of a virtual model are completed;
the method for converting and matching the virtual and construction site coordinates is carried out according to the following steps:
step 1, establishing an application system developed based on an Arkit interface, namely: when the application of the mobile terminal equipment is started, automatically establishing a virtual coordinate system, wherein the virtual coordinate system takes the position of a camera of the mobile terminal equipment as an original point when the application is started, and takes the left-right direction of the mobile terminal equipment as an X axis, the vertical direction as a Y axis and the front-back direction as a Z axis;
step 2, pasting the two-dimensional code with the pile point site coordinate information on two pile points of a construction site;
step 3, placing the mobile terminal equipment right above the first pile point serving as the origin of coordinates and scanning the two-dimensional code on the pile point in a short-distance mode to obtain the site coordinates of the pile point site coordinate system, and synchronously obtaining the virtual coordinates of the mobile terminal equipment in the virtual coordinate system at the moment; correcting the position of the origin of the coordinates of the virtual coordinate system by comparing the field coordinates with the virtual coordinates;
step 4, in the aspect of direction correction, the field coordinates of the second pile point and the virtual coordinates of the mobile terminal device in the virtual coordinate system at the moment are obtained by scanning the two-dimensional code on the second pile point, then the angle of the virtual coordinate X axis which points to the east-west direction and needs to be rotated is obtained through geometric calculation, the virtual coordinate X axis is rotated by a corresponding angle, the virtual coordinate Z axis is inverted by 180 degrees, and therefore matching of the virtual coordinate and the field coordinates is finally completed;
the construction site coordinate elevation real-time display and information placement method comprises the following steps: obtaining the real-time virtual coordinate of the mobile terminal equipment at the frequency of 30 times per second through an Arkit interface, correspondingly obtaining the field coordinate of the mobile terminal equipment at a construction field at the frequency of 30 times per second after coordinate conversion, and then displaying the field coordinate information in real time by constructing a label control; the method for placing the site coordinate information on the construction site comprises the following steps: constructing a ball model and a character model at a specified position through a Scenekit interface, and placing the ball model and the character model in a construction site, wherein the content of characters is X, Y and Z values of real-time coordinates of the mobile terminal equipment;
the construction site positioning method of the virtual model comprises the following steps: setting the size of a virtual model according to the real size, placing a mobile terminal device at the site coordinate position of a base point of the virtual model, then placing the virtual model, and rotating the virtual model along the Z-axis direction, namely the vertical direction through gesture rotation operation, namely double-contact rotation operation, on the screen of the mobile terminal device so as to position the virtual model in the construction scene of a construction site;
the distance measuring method of the construction site comprises the following steps: the method comprises two methods of measuring the screen contact position of the mobile terminal equipment and measuring the intersection point position of a screen contact ray of the mobile terminal equipment and a construction site plane;
when the size of a construction site is measured by the screen contact position of the mobile terminal equipment, acquiring the coordinate information of the screen contact position of the starting and stopping point measured by the mobile terminal equipment in real time, and then obtaining a measurement result through a distance formula;
when the dimension of a construction site is measured by the intersection point position of a screen contact ray of the mobile terminal equipment and a construction site plane, the screen contact position of a measured start and stop point of the mobile terminal equipment is obtained in real time, the screen contact position is vertical to a screen emission ray and is intersected with the construction site plane detected by the mobile terminal equipment, and the measurement distance is calculated by the intersection point coordinates of the two times;
the construction site drawing method of the virtual construction auxiliary line comprises the following steps: the control point coordinates of the construction auxiliary lines are used as the basis, and the virtual construction auxiliary lines are drawn by adopting two modes, which are respectively: firstly, drawing a suspended three-dimensional construction auxiliary line in a mode of a screen contact position of mobile terminal equipment; secondly, drawing a construction auxiliary line attached to the ground in a mode of an intersection point of a screen contact ray of the mobile terminal device and a construction site plane; the two virtual construction auxiliary lines are drawn by adopting a basic model building function provided by a scene kit to build a line model and are placed at corresponding construction site positions;
the method for storing and sharing the position information of the virtual model comprises the following steps: the ID of the model, the base point position of the model and the rotation angle information of the model in the Z axis, namely the vertical direction, which are placed in the construction site are stored in a background database, other users adopt the same two-dimensional code scanning mode to match the coordinates, and then the model information of the background database is obtained, so that the system automatically places the same model in the scene of the construction site at the same position and angle, and the storage and sharing of the position information of the virtual model are realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711275425.3A CN107729707B (en) | 2017-12-06 | 2017-12-06 | Engineering construction lofting method based on mobile augmented reality technology and BIM |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711275425.3A CN107729707B (en) | 2017-12-06 | 2017-12-06 | Engineering construction lofting method based on mobile augmented reality technology and BIM |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107729707A CN107729707A (en) | 2018-02-23 |
| CN107729707B true CN107729707B (en) | 2021-03-02 |
Family
ID=61220959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711275425.3A Active CN107729707B (en) | 2017-12-06 | 2017-12-06 | Engineering construction lofting method based on mobile augmented reality technology and BIM |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107729707B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7097251B2 (en) * | 2018-07-09 | 2022-07-07 | 清水建設株式会社 | Construction management system |
| JP6913268B2 (en) * | 2018-07-30 | 2021-08-04 | サクラインターナショナル株式会社 | Marking line drawing work method using MR (Mixed Reality) field of view |
| CN109883327B (en) * | 2019-04-01 | 2021-11-26 | 上海宝冶建筑工程有限公司 | Track frame system monitoring method |
| CN111248851B (en) * | 2019-10-11 | 2023-08-11 | 中山大学中山眼科中心 | Visual function self-testing method |
| CN110646159A (en) * | 2019-10-18 | 2020-01-03 | 中国建筑第八工程局有限公司 | Construction method for high-precision control and measurement of cast-in-place bare concrete wind tunnel |
| 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 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010043136B4 (en) * | 2010-10-29 | 2018-10-31 | Hilti Aktiengesellschaft | Measuring device and method for a non-contact measurement of distances at a target object |
| US20170053042A1 (en) * | 2015-08-19 | 2017-02-23 | Benjamin John Sugden | Holographic building information update |
| CN106910251A (en) * | 2017-03-22 | 2017-06-30 | 朱海涛 | Model emulation method based on AR and mobile terminal |
| CN107339984A (en) * | 2017-07-07 | 2017-11-10 | 四川云图瑞科技有限公司 | Three-dimensional indoor locating system based on augmented reality |
-
2017
- 2017-12-06 CN CN201711275425.3A patent/CN107729707B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107729707A (en) | 2018-02-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107729707B (en) | Engineering construction lofting method based on mobile augmented reality technology and BIM | |
| JP7190042B2 (en) | Shadow rendering method, apparatus, computer device and computer program | |
| CN107330978B (en) | Augmented reality modeling experience system and method based on position mapping | |
| JP5799521B2 (en) | Information processing apparatus, authoring method, and program | |
| CN107369205B (en) | Mobile terminal city two-dimensional and three-dimensional linkage display method | |
| CN110163942B (en) | Image data processing method and device | |
| CN105389854A (en) | Decoration effect displaying method and system of cubic room | |
| CN107945283B (en) | Engineering display method based on mobile augmented reality technology and BIM | |
| Gomez-Jauregui et al. | Quantitative evaluation of overlaying discrepancies in mobile augmented reality applications for AEC/FM | |
| WO2020149270A1 (en) | Method for generating 3d object arranged in augmented reality space | |
| CN107958491B (en) | Matching method of mobile augmented reality virtual coordinates and construction site coordinates | |
| CN110599432B (en) | Image processing system and image processing method | |
| CN105095314A (en) | Point of interest (POI) marking method, terminal, navigation server and navigation system | |
| Liarokapis et al. | Mobile augmented reality techniques for geovisualisation | |
| CN111833243A (en) | Data display method, mobile terminal and storage medium | |
| CN111006672A (en) | Indoor navigation model construction and navigation method and system based on augmented reality | |
| CN111161350B (en) | Position information and position relation determining method, position information acquiring device | |
| JP7375149B2 (en) | Positioning method, positioning device, visual map generation method and device | |
| TWI691932B (en) | Image processing system and image processing method | |
| CN112308767B (en) | Data display method and device, storage medium and electronic equipment | |
| CN112800514B (en) | Method for applying laser point Yun Jia BIM modeling technology to visual control platform of converter station | |
| CN112862981B (en) | Method and apparatus for presenting a virtual representation, computer device and storage medium | |
| CN111476873A (en) | Mobile phone virtual doodling method based on augmented reality | |
| CN112419508B (en) | Method for realizing mixed reality based on large-scale space accurate positioning | |
| CN104144287A (en) | Reality augmentation camera |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |