tailieunhanh - Một cách tiếp cận với thiết bị Ubiquitous sử dụng T-engine tại Việt Nam

Nội dung bài viết đề xuất giải pháp mở rộng T-Engine thông qua extension bus. Bên cạnh đó, vấn đề timing trong giao tiếp bus và lập trình thời gian thực cũng được xem xét. Một mô hình robot đơn giản để minh hoạ tính khả thi của nghiên cứu được hiện thực. Cách tiếp cận này sẽ mở ra một hướng mới trong phát triển các thiết bị Ubiquitous dùng T-Engine ở Việt Nam. | Science & Technology Development, Vol 14, 2011 AN APPROACH OF UBIQUITOUS DEVICES USING T-ENGINE IN VIETNAM Nguyen Hoa Hung, Nguyen Quang Huy, Dinh Duc Anh Vu University of Technology, VNU-HCM (Manuscript Received on April 27th 2011, Manuscript Revised November 25th 2011) 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. 1. INTRODUCTION besides several application developments. For the network communication, they are security Ubiquitous computing is a post-desktop model of human-computer interaction. The typical characteristic to distinguish ubiquitous computing with other model is that .