权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Research on Real-Time Revision of Base Map for Local Government using RTK-GPS

RTK-GPS地方政府底图实时修编研究

基本信息

批准号：
13650591
负责人：
SHIKADA Masaaki
金额：
$ 2.3万
依托单位：
Kanazawa Institute of Technology
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2001
资助国家：
日本
起止时间：
2001 至 2003
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-13650591/
关键词：
RTK-GPS GPS GIS Digital Map Real Time Revision REAL TIME GIS RTK-GPS

项目摘要

Much local government has been using the large scale digital map with Geographic Information System (GIS).GIS will be able to work efficiently and to reduce costs of mapping. Furthermore, by sharing the data with their section in local government, it is possible to improve the service to a citizen. However, the maintenance and renewal of a map database need much labor and time. The updating method of a map is not established yet, there are very few successful examples. The purpose of this research is to establish the updating method of digital map for local government.One of the methods which can solve this problem is Real-Time Kinematic System (RTK-GPS) using Global Positioning System (GPS). It is possible that digital map data update at real time using RTK-GPS which has high accuracy and simultaneity and cellular phone. In this study, we defined the system as a REAL TIME GIS.RTK-GPS positioning data is Japanese Geodetic Datum 2000 (JGD2000) of WGS-84, but most of the digital map of local government is still Tokyo Datum of old geodetic system. In order to correspond with two kinds of data which have different geodetic system, it is necessary to transform coordinates.Geographic Survey Institute of Japan (GSI) adopted GRS80 instead of Tokyo Datum since April 2002. The data of the past survey which uses Tokyo Datum will need to be changed to JGD2000. The GSI opened a website for the conversion parameters and programs.GPS positioning data is able to apply to digital map in small scale. However, we have not been able to get sufficient accuracy of Base Map and thematic map which had been made the large scale (1/500 or 1/1000) with the old geodetic system.This research proposed the High-Accuracy Regional Parameter (HARP) which changes from old geodetic system to new geodetic system using RTK-GPS. In the research, we introduced field experiments for the process of development of HARP,and showed the results which old geodetic data was overlapped to new geodetic data.

许多地方政府已经使用带有地理信息系统（GIS）的大比例尺数字地图。GIS将能够有效地工作并降低测绘成本。此外，通过与地方政府部门共享数据，可以改善为公民提供的服务。然而，地图数据库的维护和更新需要大量的人力和时间。地图的更新方法尚未建立，成功的例子也很少。本研究的目的是建立地方政府数字地图的更新方法。解决这个问题的方法之一是利用全球定位系统(GPS)的实时运动系统(RTK-GPS)。利用高精度、高同步性的RTK-GPS和手机，可以实现数字地图数据的实时更新。在本研究中，我们将系统定义为实时GIS。RTK-GPS定位数据是WGS-84的日本大地基准2000（JGD2000），但大多数地方政府的数字地图仍然是旧大地测量系统的东京基准。为了对应两种不同大地测量系统的数据，需要进行坐标转换。日本地理测量研究所（GSI）自2002年4月起采用GRS80代替东京基准。过去使用东京基准的测量数据需要更改为JGD2000。 GSI开设了转换参数和程序的网站。GPS定位数据能够应用于小比例尺的数字地图。然而，利用旧的大地测量系统，我们无法获得大比例尺（1/500或1/1000）的底图和专题图的足够精度。本研究提出了高精度区域参数（HARP），将旧的大地测量系统转变为使用RTK-GPS的新大地测量系统。研究中介绍了HARP开发过程的现场实验,并展示了旧大地测量数据与新大地测量数据重叠的结果。