The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Publications Copernicus
Articles | Volume XL-4
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XL-4, 35–39, 2014
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XL-4, 35–39, 2014

  23 Apr 2014

23 Apr 2014

Based on asynchronous communication protocol of geographic space information service access mechanism research

G. Chen1,2, J. Zhao1,3, M. Gu3, and D. Li2 G. Chen et al.
  • 1Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming 650093, China
  • 2Faculty of Surveying and Mapping, Kunming Metallurgy College, Kunming 650033, China
  • 3Kunming Yunjindi Geo-Information Co.Ltd.,Kunming 650106, China

Keywords: Geographic spatial information services, Asynchronous transmission mechanism, Location service

Abstract. At present, the traditional way of accessing to classified network in geographic spatial information services is using network gatekeeper and firewall etc. to ensure public and classified network communications links. However, the physical isolation between classified network and public network is crossed, which is bound to cause classified network potential security hazard. In Yunnan province space Land dynamic monitoring integration project, it proposed the point to point text message communication protocol and asynchronous transmission mechanism. Using geo-spatial information encryption processing and data compression processing method, it reduced the risk of data sensitivity and monitored, namely to ensure data security, which realized geographic spatial information services data communication effectively between classified network and public network in the rigid field conditions.