Abstract:To ensure the filling of LNG tank wagon are fully as much as possible to improve economic efficiency on the premise of safety. Using big data analysis algorithms for the filling data of LNG tank wagon, without changing the main hardware equipment. The new developed control system can ensure the safety and accuracy of filling, thereby achieving the effectiveness of trade and giving real-time warning, and calibrating flow meters using standard meter devices, and mutual checking between flow meter data and ground scale data, ensuring reliability and measurement accuracy of every filling flow meters. It can improves comprehensive management level of filling Liquefied Natural Gas tank wagon, and promoting the transformation of operational management towards digitization, information, and intelligence.