Proceedings of the 2nd International Conference on Intelligent Technologies and Engineering Systems (ICITES2013) pp 483-489 | Cite as
Electric Power Usage Data Acquisition Module Composed of Two Sensors and a Microcontroller
Abstract
This article presents an electric power usage data acquisition module which was designed and developed by a microcontroller, a current sensor, a voltage sensor, and an acquisition firmware. The electric power usage data is obtained from the multiplication of the acquired current value and the acquired voltage value. At present stage, power factor is deemed as 100 % for simplifying the computation for general household electric appliances. Next stage, PF would be detected by the phase angle deviation of the current waveform and the voltage waveform. The layout of the printed circuit board of the module was drawn by the open-source Fritzing. The PCB was successfully fabricated and validated by a light AC load during experimental measurement.
Keywords
Current sensor Voltage divider Electric power Data acquisitionNotes
Acknowledgments
The authors greatly appreciate to the support of the National Science Council, R.O.C., under the Grant no. NSC 101-2632-E-230-001-NY3 and NSC 101-2514-S-821-001.
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