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GB/T 41451-2022: Specifications for indoor space mobile mapping
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Specifications for indoor space mobile mapping
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GB/T 41451-2022
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Basic data | Standard ID | GB/T 41451-2022 (GB/T41451-2022) | | Description (Translated English) | Specifications for indoor space mobile mapping | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | A76 | | Word Count Estimation | 17,192 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 41451-2022: Specifications for indoor space mobile mapping---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Specifications for indoor space mobile mapping
ICS 07.040
CCSA76
National Standards of People's Republic of China
Indoor space mobile measurement procedures
Published on 2022-04-15
2022-04-15 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration
directory
Preface III
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Abbreviations 2
5 Basic requirements 2
5.1 Space-time benchmark 2
5.2 Quality Requirements 2
6 Technical Design 3
6.1 Requirements Analysis 3
6.2 Data collection and analysis 3
6.3 Site Survey 3
6.4 Technical scheme preparation 4
7 Data acquisition and processing 4
7.1 General requirements 4
7.2 Workflow 4
7.3 Pre-collection preparation and inspection 4
7.4 Laser Point Cloud Collection 4
7.5 Laser Point Cloud Preprocessing 5
7.6 Point Cloud Storage 5
7.7 Feature point line extraction 5
8 Results production 5
8.1 General requirements5
8.2 Production of 2D Surveying and Mapping Results 6
8.3 Indoor 3D Model Production 6
8.4 Metadata Production 7
9 Quality Control8
9.1 Quality Control Requirements 8
9.2 Contents of quality control 8
10 Results submitted 9
10.1 Requirements for submission of results9
10.2 Submission of results 9
Appendix A (normative) point cloud achievement metadata 10
Appendix B (normative) Metadata of 2D Surveying and Mapping Results 11
Appendix C (normative) 3D model achievement metadata 12
Reference 13
foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents"
drafted.
Please note that some content of this document may involve patents, and the issuing authority of this document does not assume responsibility for identifying these patents.
This document is proposed by the Ministry of Natural Resources of the People's Republic of China.
This document is under the jurisdiction of the National Geographic Information Standardization Technical Committee (SAC/TC230).
This document is drafted by. Zhejiang Academy of Surveying and Mapping Science and Technology, Beijing Siweiyiyou Information Technology Co., Ltd., Yueqing City Construction, Zhejiang Province
Architectural Design Institute, Shandong University, Shanghai Saihua Information Technology Co., Ltd., China Jiliang University.
Drafters of this document. Zhou Yousheng, Luo Guangfei, Wang Ya, Ge Zhonghua, Ruan Zuhong, Ma Xiaojing, Tang Fuping, Wan Fei, Wang Zhibo, Mao Zhengke, Dai Hongjun,
Lu Bo, Cai Zhigang, Dong Sixue, Bao Di, Hua Yiping, Shen Shujuan, Mao Haijun.
Indoor space mobile measurement procedures
1 Scope
This document establishes the procedures for mobile measurement of indoor spaces and specifies the requirements for indoor space measurement based on mobile measurement technology, including technical design
requirements in terms of accounting, data collection and processing, production of results, quality control and submission of results.
This document applies to indoor space measurement work using mobile measurement technology.
2 Normative references
The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations
documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to
this document.
GB/T 4208-2017 Protection class of enclosure (IP code)
GB/T 13923 Basic Geographic Information Element Classification and Code
GB/T 19710 Geographic Information Metadata
GB/T 20257.1 National Basic Scale Map Schema Part 1.1.500 1.1000 1.2000 Topographic Map Schema
GB/T 35636 Specification for Surveying and Mapping of Urban Underground Space
CH/T 1004 Surveying and Mapping Technology Design Regulations
CH/T 9016 Specification for the production of three-dimensional geographic information models
CJJ/T 8 Urban Measurement Specification
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1
point cloud
A collection of points distributed in three-dimensional space in a discrete, irregular manner.
[Source. CH/T 8024-2011, 3.5]
3.2
densityofpointcloud
The average number of points per unit area.
Note. Generally expressed in points per square meter.
[Source. CH/T 8024-2011, 3.7]
3.3
The discrete value of the laser point cloud in the vertical direction of the same plane is expressed as the thickness of the point cloud in the vertical direction of the same plane.
3.4
feature point featurepoint
In the point cloud, it is convenient to identify the selected corner points, intersection points of linear objects, etc.
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