Automatic monitoring and controlling device of intelligent IC card gasometer

The utility model adopts an IC card as a carrier for buying gas for a user and monitoring information of a gasometer, and can realize the precise changes of the measuring signal of gasometers by an infrared pulse optical sensing circuit. The utility model is mainly composed of a pulse source circuit, a signal receiving circuit, a power supply control circuit for a single chip computer, a single chip computer, a drive circuit for an electrical control valve, a storage circuit, etc. The utility model has the functions of automatic metering and charging, surplus judgement, gas consumption control, self-diagnosis, alarm, etc. The utility model which can be matched with all gasometers has the advantages of simple structure, high safety, low cost and less electric power consumption.