On September 23, As the whole country celebrates the 70th anniversary of the founding of the people's Republic of China, China The 47th and 48th Beidou navigation satellites were successfully launched, and the global networking launch of Beidou system entered the sprint stage. By 2020, China will fully build the Beidou global system, and a more ubiquitous, integrated and intelligent comprehensive positioning, navigation and timing system will be built and improved by 2035. Beidou system will serve the world and benefit mankind with stronger function and better performance.