HOW TO USE：
NB-IoT (Narrow Band Internet of Things) diaphragm smart gas meter is used for measuring the gas flow in the pipe, with functions of remote prepayment, data uploading at fixed time, wireless network remote meter reading and remote valve control. In addition, it is compatible with local infrared communication, with simple operation, strong anti-interference ability, and low power consumption, making it especially applicable to civilian wireless remote gas metering system.
The gas company collects gas fees and input the purchased amount into the gas meter via NB-IoT network. When in use, the gas meter will automatically deduct the amount based on the set multi-tariff gas price. When purchased gas is used up, the gas meter will close the valve to stop gas supply. The user has to purchase gas again for continual use.
The gas meter can set five dividing points and six multi-tariff prices, and the deduction of fee is made automatically according to the appropriate gas price based on the gas used in the settlement cycle. When the gas used in the current settlement cycle does not exceed dividing point 1, deduction will be made at price 1; if it exceeds dividing point 1, deduction will be made at price 2, and so on. When it exceeds dividing point 5, the deduction will be made at price 6.
System Structure
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