At present, shared cycling mainly uses GPS positioning technology. GPS is suitable to large transport vehicle, allowing the error of only 10 to 20 meters, but the electronic fence is usually only 20 m
In July 19, 2017, Beijing Bayi Building, the CPC Central Committee General Secretary, State President, Central Military Commission Chairman, Xi Jinping, addressed and send the army flag to the Militar (2017-10-10)
On July 28th, we learn from the 203 Office of the Second Institution of China Aerospace Science and Industry Corporation that this office has initiated the research and development of mercury ion micr (2017-09-27)
Recently the research team composed of Prof. Pan Jianwei, his colleagues Peng Chengzhi, and Zhang Qiang from University of Science and Technology of China has realized the long-distance (53km) free sp (2017-09-26)
On July 25th, we learn from University of Science and Technology of China that the researchers of this university have made significant progress in the field of quantum communication experiment based (2017-09-25)
China s domestically-produced satellite navigation system BeiDou is said to have made significant progress on its accuracy.