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Many cloud-based applications employ a data centers as a central server to process data that is generated by edge devices, such as smartphones, tablets and wearables. This model places ever increasing demands on communication and computational infrastructure with inevitable adverse effect on Quality-of-Service and Experience. The concept of Edge Computing is predicated on moving some of this computational...
Wireless meter reading based on a combination of WIA wireless network technology and 4G wireless network technology is proposed. Data can be collected and transferred to the background processing center timely and accurate. The article describes WIA wireless network hardware design and software design process. Greatly saving cost of laying communication lines due to using the wireless communication...
According to the phenomenon that high-voltage places may endanger personal safety, we have designed high-voltage approaching alarm equipment powered by solar energy, taking the high-performance low-power chip ATmega64 as the control core. This paper mainly introduces the system's battery charge and discharge circuit, voice alarm circuit, GSM communication circuit, the main CPU circuit and power supply...
Reproducing non-deterministic bugs is challenging. Recording program execution in production environments and reproducing bugs is an effective way to re-enable cyclic debugging. Unfortunately, most current record-replay approaches introduce large perturbations to either environments and/or execution flow, in addition to performance penalty and high storage overhead, which make them impracticable to...
In conformity with the request for search and rescue application, the design criterions of human-robot interaction are proposed. Based on the human-robot interaction, the control station system for the shape-shifting search and rescue robot is designed. The system mainly has four features, which are completely perceptive information, flexible control, friendly interface and strong interaction. The...
To reduce the hardware complexity which is aroused by the limitation of sampling theory because of the use of the frequency-domain method, a wide-band MIMO imaging method based on a symmetrical exponential distribution nonlinear array is proposed. Compared to the uniform linear array, this given exponential distribution nonlinear array has the lower sidelobe level and better imaging performance. Furthermore,...
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