CN112304216A - Rock mass information acquisition test system based on 3D printing model and verification method thereof - Google Patents
Rock mass information acquisition test system based on 3D printing model and verification method thereof Download PDFInfo
- Publication number
- CN112304216A CN112304216A CN202011061472.XA CN202011061472A CN112304216A CN 112304216 A CN112304216 A CN 112304216A CN 202011061472 A CN202011061472 A CN 202011061472A CN 112304216 A CN112304216 A CN 112304216A
- Authority
- CN
- China
- Prior art keywords
- information
- printing model
- information acquisition
- rock mass
- 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.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
- G06T17/05—Geographic models
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Geometry (AREA)
- Software Systems (AREA)
- Remote Sensing (AREA)
- Computer Graphics (AREA)
- Theoretical Computer Science (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention provides a rock mass information acquisition test system and a verification method based on a 3D printing model, which comprises the following steps: the model assembly comprises a rotating seat and a rock-shaped 3D printing model, and the 3D printing model is rotationally arranged on the rotating seat; an illumination assembly to provide illumination to the 3D printed model; the information acquisition assembly comprises a geological compass, a three-dimensional laser scanner and at least two camera devices; the processing terminal is connected with the geological compass, the three-dimensional laser scanner and the at least two camera devices, an information comparison unit and a display unit are arranged in the processing terminal, and the information comparison unit is used for comparing data information acquired by the information acquisition assembly with real data generated when the 3D printing model is manufactured and calculating errors. The method can effectively evaluate the accuracy and the applicability of the rock mass discontinuous plane information acquisition and extraction method based on the photogrammetry and the three-dimensional laser scanning technology.
Description
Technical Field
The invention relates to the field of engineering rock mass information acquisition, in particular to a rock mass information acquisition test system based on a 3D printing model.
Background
In rock mass engineering, the mechanical behavior of the rock mass is largely determined by the properties of the discontinuities of the rock mass. The rock mass discontinuity surface property is an important basis for quality evaluation of surrounding rocks, geological modeling, stability analysis of rock mass engineering and dynamic design of construction schemes. In 1978, the international society for rock mechanics recommended ten quantitative indicators describing the discontinuity of rock mass, including attitude, spacing, continuity, track length, number of sets, roughness, openness, filling, wall strength and groundwater.
Traditional rock mass discontinuous plane information is obtained through an artificial geology plain surface method, and the method needs geology personnel to hold tools such as a geology compass and a tape measure to carry out contact measurement on the rock mass, so that the efficiency is low, the measurement is incomplete, the precision is easily influenced by the experience of the geology personnel, and the safety of the geology personnel is threatened by rock burst, unstable rock mass and the like. In recent years, non-contact measurement technologies represented by photogrammetry technologies and laser scanning technologies are more and more widely applied to acquisition and extraction of rock mass discontinuous surface information, and on one hand, the method is high in efficiency, complete in measurement and large in data volume, and reduces the threat to the safety of geological personnel; on the other hand, the semi-automatic and automatic extraction algorithm based on the image and the three-dimensional point cloud greatly improves the accuracy and the automation degree of information extraction, and can provide quick and effective feedback for subsequent analysis. However, due to the variability of the properties of different engineering rocks and the complexity of construction environments, the efficiency, accuracy and applicability of the rock discontinuity surface information acquisition and extraction-based method lack a universal and effective test and verification method.
The application number 201910446917.7 discloses a rock tunnel face analysis feedback integration system based on three-dimensional laser scanning, which is based on a three-dimensional laser scanning device to collect and extract discontinuous face information of tunnel face rock mass and establish a three-dimensional discontinuous numerical model to provide a judgment basis for scheme design of a construction site, however, the method lacks the test and verification of the collection and extraction results of tunnel face information so as to judge the applicability of the tunnel face information under complex rock mass properties and construction environment conditions.
The Chinese patent with the application number of 201910447881.4 discloses a rock mass tunnel full life cycle engineering information remote real-time diagnosis and feedback system, wherein a rock mass information acquisition module relates to the acquisition of tunnel face information by adopting tunnel face binocular digital photographic equipment and three-dimensional laser scanning equipment. However, the method only acquires tunnel face information, does not test and verify the accuracy of the acquired information, and simultaneously lacks effective evaluation on the applicability of the method under the conditions of complex rock mass properties and construction environments.
In order to judge the precision and effectiveness of the method for acquiring and extracting the rock mass discontinuous plane information represented by photogrammetry and three-dimensional laser scanning in a non-contact manner and ensure the applicability of the method in a complicated rock mass engineering site environment, a set of universal and standardized models and methods are required for testing and verifying.
Disclosure of Invention
In view of the above disadvantages of the prior art, the present invention provides a rock mass information acquisition testing system based on a 3D printing model, which is used to verify the accuracy of the procedures and algorithms for acquiring three-dimensional point cloud information of a rock mass surface and extracting attitude information of a rock mass discontinuity surface based on a photogrammetry technology and a three-dimensional laser scanning technology.
In order to achieve the above and other related objects, the present invention provides a rock mass information acquisition testing system based on a 3D printing model, which comprises:
the model assembly comprises a rotating seat and a rock-shaped 3D printing model, and the 3D printing model is rotationally arranged on the rotating seat;
an illumination assembly to provide illumination to the 3D printed model;
the information acquisition assembly comprises a geological compass, a three-dimensional laser scanner and at least two camera devices;
and the processing terminal is connected with the geological compass, the three-dimensional laser scanner and the at least two camera devices, and is internally provided with an information comparison unit and a display unit, wherein the information comparison unit is used for comparing the data information acquired by the information acquisition assembly with real data generated when the 3D printing model is manufactured and calculating errors.
Preferably, the lighting assembly is a controllable-brightness LED light supplement lamp.
Preferably, a circular dial is arranged on the rotating seat, and the bottom surface of the 3D printing model is located in the dial; the 3D printing model is arranged on the rotating shaft and rotates along with the rotating shaft.
Preferably, the geometric shape of the 3D printing model is three hexagonal frustum bodies which are overlapped from top to bottom and from small to large.
Preferably, the surfaces of the rotating seat and the 3D printing model generate surface roughness matched with a real rock sample through a 3D printing technology, and generate surface color matched with the real rock sample through an electroplating, spraying, painting or dip dyeing technology.
Preferably, the data information acquired by the information acquisition component comprises surface initial attitude information, three-dimensional point cloud information and image information, and the surface initial attitude information is acquired by measuring the 3D printing model by the geological compass; scanning the surface of the 3D printing model by the three-dimensional laser scanner to obtain three-dimensional point cloud information; and image information is obtained by shooting the surface of the 3D printing model by the camera device.
Preferably, the processing terminal further comprises a data transmission unit, and the data transmission unit receives the data information transmitted by the geological compass, the three-dimensional laser scanner and the camera device and transmits the data information to the information comparison unit.
The invention also provides a verification method, which uses the rock mass information acquisition test system based on the 3D printing model, and comprises the following steps:
1) placing the 3D printing model on a rotating seat, and recording the relative angle between the current 3D printing model and the lighting assembly;
2) the information acquisition component scans and photographs the 3D printing model and generates surface initial occurrence information, three-dimensional point cloud information and image information;
3) the processing terminal receives the surface initial attitude information, the three-dimensional point cloud information and the image information, and the information comparison unit performs error calculation;
rotating for multiple times, recording the relative angle between the currently rotated 3D printing model and the illumination assembly after rotating the 3D printing model each time, and repeating the step 2) and the step 3); and calculating the average value of the errors for a plurality of times, and recording the average value as the accuracy of the rock mass information acquisition and extraction algorithm based on the information acquisition assembly.
As mentioned above, the rock mass information acquisition test system based on the 3D printing model and the verification method of the rock mass information acquisition algorithm have the following beneficial effects: the information acquisition assembly is adopted to scan and acquire the information related to the 3D printing model of the rock mass, the three-dimensional point cloud information of the 3D printing model can be efficiently and accurately acquired, the data information of the 3D printing model, such as three-dimensional occurrence and three-dimensional trace information, can be quickly acquired through the extraction algorithm, the information comparison unit in the processing terminal can compare the data information with real data during the 3D printing model manufacturing, the extraction algorithm for acquiring the data information can be verified, corresponding accuracy can be obtained, corresponding comparison can be carried out on different data information extraction algorithms, and the data information extraction algorithm with high accuracy can be selected, so that the effectiveness of the rock mass discontinuous surface information acquisition flow, the discontinuous surface occurrence and the trace information extraction algorithm can be ensured. Namely, the system can effectively evaluate the accuracy and the applicability of the rock mass discontinuous surface information acquisition and extraction method based on the photogrammetry and the three-dimensional laser scanning technology.
Drawings
Fig. 1 shows a schematic diagram of a rock mass information acquisition testing system based on a 3D printing model.
Fig. 2 shows a detailed schematic diagram of the mold assembly.
Fig. 3 shows a schematic verification flow diagram of the rock mass information acquisition testing system based on the 3D printing model.
Description of the element reference numerals
1 model assembly
2 Lighting Assembly
3 information acquisition subassembly
4 data transmission unit
5 processing terminal
11 rotating seat
123D printing model
13 rotating shaft
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
Please refer to fig. 1 to 3. It should be understood that the structures, ratios, sizes, and the like shown in the drawings are only used for matching the disclosure of the present disclosure, and are not used for limiting the conditions that the present disclosure can be implemented, so that the present disclosure is not limited to the technical essence, and any structural modifications, ratio changes, or size adjustments should still fall within the scope of the present disclosure without affecting the efficacy and the achievable purpose of the present disclosure. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
As shown in fig. 1, the invention provides a rock mass information acquisition test system based on a 3D printing model, which comprises:
the model assembly 1 comprises a rotating seat 11 and a rock-shaped 3D printing model 12, wherein the 3D printing model 12 is rotatably arranged on the rotating seat 11;
an illumination assembly 2 providing illumination to the 3D printed model 12;
the information acquisition component 3 comprises a geological compass, a three-dimensional laser scanner and at least two camera devices;
the processing terminal 5 is connected with the geological compass, the three-dimensional laser scanner and the at least two camera devices, an information comparison unit and a display unit are arranged in the processing terminal 5, the information comparison unit is used for comparing data information acquired by the information acquisition assembly with real data generated when the 3D printing model is manufactured, and errors are calculated.
The rock mass information acquisition test system based on the 3D printing model adopts the geological compass, the three-dimensional laser scanner and at least two camera devices to scan and photograph the 3D printing model and acquire corresponding data information, such as three-dimensional occurrence information and three-dimensional trace information; the information comparison unit compares the data information with real data generated when the 3D printing model is manufactured, so that the accuracy of the data information can be known, and the extraction algorithm for acquiring the data information can be verified, so that the effectiveness of the rock discontinuity surface information acquisition process, the discontinuity surface occurrence and trace information extraction algorithm can be ensured.
For the environmental illumination that reflects the rock mass in nature better, illumination assembly is controllable luminance LED light filling lamp in this embodiment to this can true simulation real luminance, is convenient for improve the accuracy of information acquisition.
In order to better acquire data information of different surfaces of a rock mass in nature, as shown in fig. 2, in this embodiment, a circular scale is arranged on the rotating seat 11, and the bottom surface of the 3D printing model 12 is located in the scale; the rotating base 11 is provided with a rotating shaft 13 located at the center of the dial, and the 3D printing model 12 is arranged on the rotating shaft 13 and rotates along with the rotating shaft 13. In the embodiment, through the arrangement of the rotating shaft and the dial, the surface scanned and collected by the information collection component and the relative angle between the surface and the illumination component can be obtained, and the 3D printing model 12 is rotated, so that the angle is changed, and the position of the current collection surface on the 3D printing model 12 is determined.
In this embodiment, the 3D printing model 12 has a geometry of three hexagonal frustum bodies stacked from top to bottom and from small to large. The surfaces of the rotating seat 11 and the 3D printing model 12 generate surface roughness matched with the real rock sample through a 3D printing technology, and generate surface color matched with the real rock sample through electroplating, spraying, painting or dip dyeing technologies. Therefore, the rock mass verification method is more matched with the rock mass in the nature, and the verification accuracy is improved.
In the embodiment, the data information acquired by the information acquisition component comprises surface initial attitude information, three-dimensional point cloud information and image information, and the surface initial attitude information is acquired by measuring the 3D printing model by the geological compass; scanning the surface of the 3D printing model by the three-dimensional laser scanner to obtain three-dimensional point cloud information; and image information is obtained by shooting the surface of the 3D printing model by the camera device. The information comparison unit obtains corresponding data through key processing steps of extraction algorithms such as three-dimensional reconstruction, point cloud preprocessing, three-dimensional attitude extraction, three-dimensional trace extraction and the like based on the data information, and compares the corresponding data with real data generated when the 3D printing model is produced so as to verify the accuracy of the extraction algorithms.
For better data transmission, the processing terminal 5 in this embodiment further includes a data transmission unit 4, and the data transmission unit 4 receives the data information transmitted by the geological compass, the three-dimensional laser scanner and the image pickup device, and transmits the data information to the information comparison unit. The data transmission unit 4 in this embodiment may be a wireless signal transmission unit.
The invention also provides a verification method, which uses the rock mass information acquisition test system based on the 3D printing model, and comprises the following steps: as shown in figure 3 of the drawings,
1) placing the 3D printing model 12 on the rotating seat 11, and recording the relative angle between the current 3D printing model 12 and the lighting assembly 2; the two camera devices in the embodiment can be a mobile phone and a digital camera, and set scanning parameters of a three-dimensional laser scanner and photographing parameters of the digital camera and the mobile phone, and set the illumination intensity and the light source angle of the LED light supplement lamp with controllable brightness;
2) an information acquisition component scans and photographs the 3D printing model and generates surface initial occurrence information, three-dimensional point cloud information and image information; the method specifically comprises the following steps: measuring initial occurrence information of the surface of the 3D printing model 12 by using a geological compass, and acquiring three-dimensional point cloud or multi-view images of the 3D printing model 12 by using a three-dimensional laser scanner digital camera or a mobile phone;
3) the processing terminal 5 receives the surface initial attitude information, the three-dimensional point cloud information and the image information, and the information comparison unit performs error calculation; the method specifically comprises the following steps: the data transmission unit 4 reads the initial attitude information, the initial trace information, the three-dimensional point cloud and the image of the information acquisition assembly and transmits the information to the information comparison unit; the information comparison unit extracts corresponding data information of the 3D printing model 12 through steps of a point cloud algorithm, a point cloud preprocessing algorithm, a three-dimensional attitude extraction algorithm, a three-dimensional trace extraction algorithm and the like obtained through image three-dimensional reconstruction based on the data transmitted by the data transmission unit 4, and performs error comparison on the extracted corresponding data information and real data of the 3D printing model 12;
4) the 3D printing model 12 is rotated for multiple times, after the 3D printing model 12 is rotated each time, the rotating angle is read through the annular dial disc on the rotating seat, the relative angle between the currently rotated 3D printing model and the lighting assembly is recorded, the surface initial attitude of the 3D printing model 12 before rotation is subjected to coordinate conversion, and the surface initial attitude information after rotation is obtained; repeating the step 2) and the step 3); and calculating the average value of the errors for a plurality of times, and recording the average value as the accuracy of the rock mass information acquisition and extraction algorithm based on the information acquisition assembly.
The method is suitable for verifying the precision and the applicability of the rock mass discontinuous surface information acquisition and extraction method based on photogrammetry and three-dimensional laser scanning technology, wherein the 3D printing model can effectively simulate the typical geometric characteristics, the roughness and the color of a rock mass, the illumination assembly 2 can simulate the illumination condition of a rock mass engineering site, the information acquisition assembly 3 can reproduce an acquisition flow through various common equipment, the information comparison unit can perform key processing steps of three-dimensional reconstruction, point cloud preprocessing, three-dimensional attitude extraction, three-dimensional trace extraction and the like of a complete test information acquisition and extraction algorithm, and error comparison analysis of extracted corresponding data information and real data of the 3D printing model is provided. The method can effectively evaluate the accuracy and the applicability of the rock mass discontinuous plane information acquisition and extraction method based on the photogrammetry and the three-dimensional laser scanning technology.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (8)
1. The utility model provides a rock mass information acquisition test system based on 3D prints model which characterized in that includes:
the model assembly comprises a rotating seat and a rock-shaped 3D printing model, and the 3D printing model is rotationally arranged on the rotating seat;
an illumination assembly to provide illumination to the 3D printed model;
the information acquisition assembly comprises a geological compass, a three-dimensional laser scanner and at least two camera devices;
and the processing terminal is connected with the geological compass, the three-dimensional laser scanner and the at least two camera devices, and is internally provided with an information comparison unit and a display unit, wherein the information comparison unit is used for comparing the data information acquired by the information acquisition assembly with real data generated when the 3D printing model is manufactured and calculating errors.
2. The rock mass information acquisition test system based on the 3D printing model according to claim 1, characterized in that: the illumination assembly is a controllable brightness LED light supplement lamp.
3. The rock mass information acquisition test system based on the 3D printing model according to claim 1, characterized in that: the rotating seat is provided with a circular dial, and the bottom surface of the 3D printing model is positioned in the dial; the 3D printing model is arranged on the rotating shaft and rotates along with the rotating shaft.
4. The rock mass information acquisition test system based on the 3D printing model according to claim 3, characterized in that: the geometric shape of the 3D printing model is three hexagonal frustum bodies which are overlapped from top to bottom and from small to large.
5. The rock mass information acquisition test system based on the 3D printing model according to claim 1, characterized in that: the surface of the rotating seat and the surface of the 3D printing model generate surface roughness matched with the real rock sample through a 3D printing technology, and generate surface color matched with the real rock sample through electroplating, spraying, painting or dip dyeing technologies.
6. The rock mass information acquisition test system based on the 3D printing model according to claim 1, characterized in that: the data information acquired by the information acquisition component comprises surface initial attitude information, three-dimensional point cloud information and image information, and the surface initial attitude information is acquired by measuring the 3D printing model by the geological compass; scanning the surface of the 3D printing model by the three-dimensional laser scanner to obtain three-dimensional point cloud information; and image information is obtained by shooting the surface of the 3D printing model by the camera device.
7. The rock mass information acquisition test system based on the 3D printing model according to claim 1, characterized in that: the processing terminal further comprises a data transmission unit, and the data transmission unit receives the data information transmitted by the geological compass, the three-dimensional laser scanner and the camera device and transmits the data information to the information comparison unit.
8. A method of authentication, characterized by: use of a 3D-printed model based rock mass information acquisition testing system as claimed in any one of claims 1 to 7, comprising the steps of:
1) placing the 3D printing model on a rotating seat, and recording the relative angle between the current 3D printing model and the lighting assembly;
2) the information acquisition component scans and photographs the 3D printing model and generates surface initial occurrence information, three-dimensional point cloud information and image information;
3) the processing terminal receives the surface initial attitude information, the three-dimensional point cloud information and the image information, and the information comparison unit performs error calculation;
4) rotating for multiple times, recording the relative angle between the currently rotated 3D printing model and the illumination assembly after rotating the 3D printing model each time, and repeating the step 2) and the step 3); and calculating the average value of the errors for a plurality of times, and recording the average value as the accuracy of the rock mass information acquisition and extraction algorithm based on the information acquisition assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011061472.XA CN112304216B (en) | 2020-09-30 | 2020-09-30 | Rock mass information acquisition test system based on 3D printing model and verification method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011061472.XA CN112304216B (en) | 2020-09-30 | 2020-09-30 | Rock mass information acquisition test system based on 3D printing model and verification method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112304216A true CN112304216A (en) | 2021-02-02 |
| CN112304216B CN112304216B (en) | 2022-04-08 |
Family
ID=74488551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011061472.XA Active CN112304216B (en) | 2020-09-30 | 2020-09-30 | Rock mass information acquisition test system based on 3D printing model and verification method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112304216B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104385591A (en) * | 2014-10-10 | 2015-03-04 | 合肥斯科尔智能科技有限公司 | Three dimensions printing system with product detection function |
| CN205352391U (en) * | 2015-12-28 | 2016-06-29 | 厦门理工学院 | Entity measurement system based on ground three -dimensional laser scanning |
| CN106447776A (en) * | 2016-09-22 | 2017-02-22 | 北京科技大学 | Complex fractured rock mass physical model manufactured based on 3D printing productionand modeling method |
| CN106960468A (en) * | 2017-04-12 | 2017-07-18 | 武汉理工大学 | A kind of 3 D laser scanning point cloud Accuracy Assessment |
| CN107672180A (en) * | 2017-09-06 | 2018-02-09 | 哈尔滨理工大学 | A kind of 3D printing accuracy checking method based on reverse Engineering Technology |
| KR20180099411A (en) * | 2017-02-28 | 2018-09-05 | (주)에프에스알엔티 | Realtime monitoring & control system on 3D printing |
| CN109299574A (en) * | 2018-11-02 | 2019-02-01 | 山东大学 | A kind of structure noodle producing method and system |
| CN109579733A (en) * | 2018-11-30 | 2019-04-05 | 广东省新材料研究所 | A kind of laser 3D printing compact dimensions precision method for rapidly estimating |
| CN111391327A (en) * | 2020-03-11 | 2020-07-10 | 先临三维科技股份有限公司 | Printing error determination method, printing error determination device, electronic equipment and storage medium |
-
2020
- 2020-09-30 CN CN202011061472.XA patent/CN112304216B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104385591A (en) * | 2014-10-10 | 2015-03-04 | 合肥斯科尔智能科技有限公司 | Three dimensions printing system with product detection function |
| CN205352391U (en) * | 2015-12-28 | 2016-06-29 | 厦门理工学院 | Entity measurement system based on ground three -dimensional laser scanning |
| CN106447776A (en) * | 2016-09-22 | 2017-02-22 | 北京科技大学 | Complex fractured rock mass physical model manufactured based on 3D printing productionand modeling method |
| KR20180099411A (en) * | 2017-02-28 | 2018-09-05 | (주)에프에스알엔티 | Realtime monitoring & control system on 3D printing |
| CN106960468A (en) * | 2017-04-12 | 2017-07-18 | 武汉理工大学 | A kind of 3 D laser scanning point cloud Accuracy Assessment |
| CN107672180A (en) * | 2017-09-06 | 2018-02-09 | 哈尔滨理工大学 | A kind of 3D printing accuracy checking method based on reverse Engineering Technology |
| CN109299574A (en) * | 2018-11-02 | 2019-02-01 | 山东大学 | A kind of structure noodle producing method and system |
| CN109579733A (en) * | 2018-11-30 | 2019-04-05 | 广东省新材料研究所 | A kind of laser 3D printing compact dimensions precision method for rapidly estimating |
| CN111391327A (en) * | 2020-03-11 | 2020-07-10 | 先临三维科技股份有限公司 | Printing error determination method, printing error determination device, electronic equipment and storage medium |
Non-Patent Citations (3)
| Title |
|---|
| 周春霖等: "双目系统的岩体结构面产状非接触测量方法", 《岩石力学与工程学报》 * |
| 林泳涛等: "基于3D打印的CMM辅助测量技术", 《机床与液压》 * |
| 管克亮等: "地质体模型的3D打印应用研究", 《科技创新与生产力》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112304216B (en) | 2022-04-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106017325B (en) | Improved non-contact optical measurement method for complex surface and irregular object volume | |
| CN106500593A (en) | Aviation electric connector contact pin position deviation detection method | |
| CN112465960B (en) | Size calibration device and method for three-dimensional model | |
| CN103267491A (en) | Method and system for automatically acquiring complete three-dimensional data of object surface | |
| CN113240747B (en) | Outdoor structure vibration displacement automatic monitoring method based on computer vision | |
| CN110288713B (en) | Rapid three-dimensional model reconstruction method and system based on multi-view vision | |
| CN107633532B (en) | Point cloud fusion method and system based on white light scanner | |
| CN112254670B (en) | 3D information acquisition equipment based on optical scanning and intelligent vision integration | |
| CN107945178B (en) | A kind of residual hole automatic identification of explosion and feature extracting method | |
| CN104374324B (en) | Displacement measuring device based on image recognition | |
| CN108964830A (en) | A kind of unmanned plane interference positioning system | |
| CN206741554U (en) | The house type 3D modeling system of indoor 3D scanning devices based on depth camera | |
| CN112254675B (en) | Space occupancy rate acquisition and judgment equipment and method containing moving object | |
| CN109751980A (en) | Wave height measurement method based on monocular vision laser triangulation | |
| CN112614215B (en) | Three-dimensional measurement surface temperature field reconstruction method | |
| CN110619665A (en) | Calibration and verification method of binocular camera in virtual simulation environment | |
| CN112304216B (en) | Rock mass information acquisition test system based on 3D printing model and verification method thereof | |
| CN112484663B (en) | Intelligent visual 3D information acquisition equipment of many angles of rolling | |
| CN111491157B (en) | Method for constructing mobile phone 3D model to guide comprehensive image acquisition | |
| CN116664687A (en) | Four-dimensional thermal image model generation method and device and electronic equipment | |
| CN110987936A (en) | Dam surface crack intelligent identification measuring device towards unmanned aerial vehicle | |
| CN108334697B (en) | Simulation experiment method for evaluating three-dimensional reconstruction software | |
| Frisky et al. | Acquisition Evaluation on Outdoor Scanning for Archaeological Artifact Digitalization. | |
| CN108960226A (en) | A kind of pointer instrument class expression value number reading method and device | |
| Gillihan | Accuracy Comparisons of iPhone 12 Pro LiDAR Outputs |
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 |