Shaanxi Meineng Project, combined with the existing IC card business system, the two-in-one self-service recharge/payment machine and the QR code scanning box of the gas company, enables customers of gas companies to realize online self-service recharge and payment, and the cashless payment mode through wechat or alipay at the filling station is realized for the first time, thus improving the operating efficiency of gas companies and reducing the operating cost.