In recent years, China's geographic information industry has a wide demand, rapid development, good benefits and great contribution, which has played an obvious role in the national information construction and has become a new economic growth point in national economic activities.
From 2005 to 2008, the total amount of basic geographic information data provided increased by more than 20% every year. Taking the National Basic Geographic Information Center as an example, the total amount of basic geographic information data provided from 2005 to 2008 was about 4TB, 5TB, 7TB and 32TB respectively.
Geographic information has been widely used in network location search, vehicle navigation, moving target monitoring, digital camera, portable mobile navigation, intelligent transportation, intelligent communication, games and many other aspects. According to the internet.
China Internet Survey Report shows that in 2006, the user arrival rate of Baidu's network map search service was 32.5%. According to the survey of iResearch Group, nearly 80 million users used maps through the Internet in 2008. Geographic information has become an important information for users such as Internet, mobile phones and automobiles to make location inquiries, travel, navigation and positioning, and has entered the daily life of the public.