GB/T 40849-2021Data contents for holo-graphic location-based map (English PDF)

Foreword

This standard was drafted in accordance with the provisions of GB/T 1.1-2009.

Introduction

The holographic location map is a data organization form that uses the map as the information carrier and collects various information according to the spatial location. in the ubiquitous ring Under the circumstance, there are various sources of information and different forms of expression. In order to effectively and reasonably integrate the information with location reference, and Placed on an information carrier with consistent spatial characteristics, it is necessary to clarify the position expression form and the position frame that can locate the position on the map space. shelf. To this end, by extracting the representation of location information and the universal features of the map space, the various types of information contained in the holographic location map are summarized into locations. information and the location frame for locating this location information (that is, the map background space for spatially locating the location information), forming a location-based association It can effectively integrate various existing geospatial information, sensor network information, social network information, spontaneous It can link and collect information such as management information and real-time public service information, and provide support for the universal intelligent service of location information.

1 Scope

This standard specifies the data requirements, location representation and location frame data content of holographic location maps.

This standard applies to the organization and production of holographic location map data.

2 Normative references

The following documents are essential for the application of this document. For dated references, only the dated version applies to this document. For undated references, the latest edition (including all amendments) applies to this document.

GB/T 19710-2005 Geographic Information Metadata

GB 22021 National Geodetic Basic Technical Regulations

GB/T 33175 National Basic Scale Map 1:500, 1:1000, 1:2000 Orthophoto Map

GB/T 33178 National Basic Scale Map 1:250000, 1:500000, 1:1000000 Orthophoto Map

GB/T 33179 National Basic Scale Map 1:25000, 1:50000, 1:100000 Orthophoto Map

GB/T 33182 National Basic Scale Map 1:5000, 1:10000 Orthophoto Map

GB/T 35628-2017 Real Map Data Products

GB/T 35634 Public Service Electronic Map Tile Data Specification

CH/T 8024 Airborne Lidar Data Acquisition Technical Specification

CH/T 9015 Specification for 3D Geographic Information Model Data Products

CH/T 9016 Specification for the production of three-dimensional geographic information models

CH/T 9017 Specification for 3D Geographic Information Model Database

3 Terms and Definitions

The following terms and definitions apply to this document.