It is a card type automatic automatic gas billing system that can set the gas bill according to the gas usage using a magnetic card or IC card.In the related art, the gas bill is settled after a person checks the gas usage directly. In order to solve the problem of not only the waste of manpower and time, but also the infringement of the personal living environment, such as notifying the computer staff of the meter reading, setting a fee and issuing a payment notice accordingly. Precise automatic gas billing system is economical and safe card type automatic gas billing system by constructing a control unit that can interface with micro controller and thermo mass flow meter that can detect minute gas flow rate. will be.
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