| Abstract |
The study summarized primarily the necessity of constructing authoritative, unique and universal geo-spatial framework of digital city, and then introduced the general train of thought, progress, function and influence of the construction of digital city in our country. Subsequently, according to the development of era, advance of technology and changes in demand, the new development opportunities and challenges facing the current geo-spatial framework were discussed, associated with the exploration of existing problems, the highlighting of the constructing goal and content of the spatio-temporal information framework of smart city, as well as the expectation of future direction of technological breakthroughs. |