An Approach of Ubiquitous Devices Using T-Engine in Vietnam

Abstract

The 21st century is the era of Ubiquitous Computing where computing devices are present everywhere in our lives. To satisfy the development of this tendency, many hardware platforms have been proposed for developing Ubiquitous devices. Among them, T-Engine, an open standardized development platform for embedded systems, is one of the most popular platforrms. It is nowadays compatible with embedded equipments for a wide range of fields. In Vietnam, T-Engine has just been introduced for 4 years. However, most of the ubiquitous applications using T-Engine are developed restrictively based on the standard hardware of T-Engine. One issue that arises is the necessity of a solution to expand T-Engine hardware and use it to control automatic systems to satisfy different types of Ubiquitous devices. This research is to propose an approach to use T-Engine in the Ubiquitous Devices that require the attachment of the additional hardware as well as the complicated control mechanism with real time constraints. In this research, we proposed an expanding solution T-Engine through the extension bus. Besides that, we consider the timing problems in bus transaction and problems in real-time programming. A simple robot demonstration has also been designed and implemented to prove the feasibility of our model. This approach will open up a new tendency of developing complicated Ubiquitous devices using T-Engine in Vietnam.

Effects of rosin-aluminum sulfate treatment on the leachability, color stability, and decay resistance of wood treated with a boron-based preservative

“…Subsequently, the authors used a rosin-sizing agent and a water-borne rosin-copper compound to impregnate poplar wood. The results showed that the rosin could decrease the moisture absorption ability of wood and help improve the decay resistance of the wood (Li et al 2011;Nguyen and Li 2014). In particular, the rosin had a very high copper fixing efficiency in wood, and wood samples treated with the rosin-copper compound had a greater decay resistance, even after leaching (Nguyen et al 2012;Nguyen et al 2013a).…”