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Appl. Sci. 2018, 8(11), 2276;

Development of an Energy-Efficient Smart Socket Based on STM32F103

School of Electric and Information Engineering, Yangzhou Polytechnic Institute, Yangzhou 225002, China
School of Engineering, University of South Australia, Adelaide, SA 5095, Australia
School of Energy and Power Engineering, Changsha University of Science & Technology, Changsha 410114, China
Author to whom correspondence should be addressed.
Received: 22 October 2018 / Revised: 8 November 2018 / Accepted: 14 November 2018 / Published: 17 November 2018
(This article belongs to the Section Energy)
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Many efforts have recently been dedicated to developing smart sockets that seek to provide insights into the reduction of standby energy waste coupled to electric appliances. However, not all technical solutions consider the techno-economic benefits in the development. This research presents a hardware solution based on STM32F103 (STM32F103 devices use the Cortex-M3 core, with a maximum CPU speed of 72 MHz) for the development of an energy-efficient smart socket to address the standby energy waste of household electric appliances and associated economic losses. Input-output analysis on monitored voltage and current was employed to assess the performance and examine the precision of the developed system. As it was targeted at facilitating easier operation, the smart socket was developed to be compatible with other remote controllers of household electric appliances. Experimental results indicated that the developed system could measure voltage values accurately to avoid overvoltage for security protection. The measuring unit could monitor current values with high precision to support the energy-saving control. A functional testing was conducted on the prototypes with a lifecycle assessment employed to validate the economic attractiveness of the developed system. Results indicated that the system is user friendly and cost-effective as no extra wiring required and network environment independent. Indeed, indirect fruits, such as lifespan extension and safety enhancement, could also be achieved for appliances. View Full-Text
Keywords: smart socket; energy-efficient; lifecycle assessment; safety design; STM32F103 smart socket; energy-efficient; lifecycle assessment; safety design; STM32F103

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Ma, M.; Huang, B.; Wang, B.; Chen, J.; Liao, L. Development of an Energy-Efficient Smart Socket Based on STM32F103. Appl. Sci. 2018, 8, 2276.

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