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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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IEMEK Journal of Embedded Systems and Applications
Journal Basic Information
Journal DOI :
Institute of Embedded Engineering of Korea
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Volume & Issues
Volume 6, Issue 6 - Dec 2011
Volume 6, Issue 5 - Oct 2011
Volume 6, Issue 4 - Aug 2011
Volume 6, Issue 3 - Jun 2011
Volume 6, Issue 2 - Apr 2011
Volume 6, Issue 1 - Feb 2011
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A Consideration for a Protocol Supporting Tire Pressure Monitoring System
Bae, Byoung-Chul ; Seo, Hae-Moon ; Lee, In-Soo ; Nam, Yoon-Seok ;
IEMEK Journal of Embedded Systems and Applications, volume 6, issue 6, 2011, Pages 335~344
The Tire Pressure Monitoring System(TPMS) is often used recently. However, the standards and functions are very different. Even though the regulation requires all vehicles install the TPMS, there is no a standard of a Physical and Media access control protocol which provides compatibility with other systems. In this paper, we propose a MAC protocol based on the international standard and an energy efficient hybrid RF system platform. The MAC protocol provides compatibility of the TPMS with other systems and the RF system platform reduces energy consumption significantly.
Efficient Use of On-chip Memory through Profile-Driven Array Reorganization
Cho, Doosan ; Youn, Jonghee ;
IEMEK Journal of Embedded Systems and Applications, volume 6, issue 6, 2011, Pages 345~359
In high performance embedded systems, the use of multiple on-chip memories is an essential architectural feature for exploiting inherent parallelism in multimedia applications. This feature allows multiple data accesses to be executed in parallel. However, it remains difficult to effectively exploit of multiple on-chip memories. The successful use of this architecture strongly depends on how to efficiently detect and exploit memory parallelism in target applications. In this paper, we propose a technique based on a linear array access descriptor , which is generated from profiled data, to detect and exploit memory parallelism. The proposed technique tackles an array reorganization problem to maximize memory parallelism in multimedia applications. We present preliminary experiments applying the proposed technique onto a representative coarse grained reconfigurable array processor (CGRA) with multimedia kernel codes. Our experimental results demonstrate that our technique optimizes data placement by putting independent data on separate storage. The results exhibit 9.8% higher performance on average compared to the existing method.
A Development of Personalized Embedded System for Interactive Training Machines
Byun, Siwoo ;
IEMEK Journal of Embedded Systems and Applications, volume 6, issue 6, 2011, Pages 361~367
In this paper, we propose an interactive embedded system framework for efficient training management in u-health environment. First, we analyzed various requirements of smart training systems for quality of life. We also analyzed the oversea trends and positive effects of the embedded system in terms of both technical and economical factors. Second, we proposed detailed design specification for embedded hardware implementation. Third, we developed effective OS(Operating System) specification for the embedded hardware. Finally, we developed a training scenario and embedded applications such as training control software and analysis software for the smart training systems.
Dual Sink Nodes for Sink Node Failure in Wireless Sensor Networks
Kim, Dae-Il ; Park, Lae-Jeong ; Park, Sung-Wook ; Lee, Hyung-Bong ; Moon, Jung-Ho ; Chung, Tae-Yun ;
IEMEK Journal of Embedded Systems and Applications, volume 6, issue 6, 2011, Pages 369~376
Since wireless sensor networks generally have the capability of network recovery, malfunction of a few sensor nodes in a sensor network does not cause a crucial problem paralyzing the sensor network. The malfunction of the sink node, however, is critical. If the sink node of a sensor network stops working, the data collected by sensor nodes cannot be delivered to the gateway because no other sensor nodes can take the place of the sink node. This paper proposes a TDMA-based wireless sensor network equipped with dual sink nodes, with a view to preventing data loss in the case of malfunction of a sink node. A secondary sink node, which synchronizes with a primary sink node and receives data from other sensor nodes in normal situations, takes the role of the primary sink node in the case of malfunction of the primary sink, thereby eliminating the possibility of data loss. The effectiveness of the proposed scheme is demonstrated through experiments.
The Method of Data Synchronization Among Devices for Personal Cloud Services
Choi, Eunjeong ; Lee, Jeunwoo ;
IEMEK Journal of Embedded Systems and Applications, volume 6, issue 6, 2011, Pages 377~382
This paper describes the method of data synchronization among devices for personal cloud services. Existing data synchronization for mobile devices is based on a central server to mobile devices or a PC to a mobile device. However, the purpose of this paper is to share user data in heterogeneous environments, without depending on central server. This technology can be applied to synchronize personal data between a device and a personal cloud storage for personal cloud services. The ad hoc synchronization needs a sync agent service discovery module, a user authentication module, a network adapter, and an application data synchronization module. The method described in this paper is better than existing synchronization technology based on client-server in availability, performance, scalability quality attributes.
The Efficient Buffer Size in A Dual Flash Memory Structure with Buffer System
Jung, Bo-Sung ; Lee, Jung-Hoon ;
IEMEK Journal of Embedded Systems and Applications, volume 6, issue 6, 2011, Pages 383~391
As we know the effects of cache memory research, instruction and data caches can be separated for higher performance with Harvard CPUs. In this paper, we shows the efficiency of buffer system in the instruction and data flash storage medium. And we analyzed characteristics of the data and instruction flash and evaluated the performance. Finally, we propose the best buffer structure with an optimal block size and buffer size for the instruction and data flash.
Design and Evaluation Method of Linux Based Soft Real-Time Kernel for Information Devices
Jung, YungJoon ; Lim, Donghyouk ; Lim, Chaedeok ; Choi, Hoon ;
IEMEK Journal of Embedded Systems and Applications, volume 6, issue 6, 2011, Pages 393~400
Recently, demands of information devices are increasing as we can find so many information devices around us such as smartphone, MID(Mobile Internet Device), Tablet. These characteristics of information devices services should support soft real-time based time guaranteed multimedia services and control internet appliances. In this situation, soft real-time supported system should be developed to consider as a total aspect of hardware, kernel, middleware, application. But this paper will describe soft real-time supporting and evaluation methods for information device as an aspect of only kernel.