| 摘要 |
PURPOSE: A method and a device for controlling gas and a gas supply system using the method and the device are provided to block a gas valve by checking an operation state of gas equipments through a gas control device if gas is not used or the gas equipments are operated abnormally and to inspect and check an amount of used gas through a wire communication network. CONSTITUTION: A device for controlling gas includes input parts(202,204,...214), a control part(220), a control signal part(242) and a gas meter signal receiving part(215). The input part receives signal of an operation state of each gas equipment. The control part performs a predetermined operation according to signal of a preset program and the input part. The control signal part provides signal to a gas valve according to signal of the control part. The gas meter signal receiving part receives information of an amount of used gas from a gas meter.
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