The invention relates to the technical field of the smart electric meter, to a single-phase smart electric meter with a
wireless meter reading function. The single-phase smart electric meter comprises an
electric power signal sampling module, a single-phase three-wire metering unit, and a micro controller, wherein the
electric power signal sampling module, the single-phase three-wire metering unit, and the micro controller are successively connected; and the micro controller calculates the positive
electric energy E1, reverse
electric energy E2, and net
electric energy E. In addition, the single-phase smart electric meter also includes an LCD display module, a
power module, an RTC and
backup battery module, a pulse output module, a positive electric
energy storage unit, a reverse electric
energy storage unit, a net electric
energy storage and a
wireless communication module, wherein the LCD display module, the
power module, the RTC and
backup battery module, the pulse output module, the positive electric energy storage unit, the reverse electric energy storage unit, the net electric energy storage and the
wireless communication module are connected with the micro controller. The wireless communication module is linked to a
remote meter reading device by a wireless
communication channel, thereby realizing
remote meter reading. According to the invention, respective accumulation, metering, and storage of the positive and
reverse time-sharing electric energy as well as functions of real-time measurement, load recording, and
remote meter reading and the like can be realized. And problems that the existing electric meter can not carry out bidirectional power
supply energy settlement, remote meter reading, and electric
energy quality monitoring can be solved.