scholarly journals Context-Aware Mobile Sensors for Sensing Discrete Events in Smart Environment

2016 ◽  
Vol 2016 ◽  
pp. 1-10 ◽  
Author(s):  
Awais Ahmad ◽  
M. Mazhar Rathore ◽  
Anand Paul ◽  
Won-Hwa Hong ◽  
HyunCheol Seo
Keyword(s):  
Embedded Systems ◽  
Low Power ◽  
System Architecture ◽  
The Elderly ◽  
Mobile Sensors ◽  
Communication Model ◽  
Smart Environment ◽  
Discrete Events ◽  
Smart Building ◽  
Three Stages

Over the last few decades, several advancements in the field of smart environment gained importance, so the experts can analyze ideas for smart building based on embedded systems to minimize the expense and energy conservation. Therefore, propelling the concept of smart home toward smart building, several challenges of power, communication, and sensors’ connectivity can be seen. Such challenges distort the interconnectivity between different technologies, such as Bluetooth and ZigBee, making it possible to provide the continuous connectivity among different objects such as sensors, actuators, home appliances, and cell phones. Therefore, this paper presents the concept of smart building based on embedded systems that enhance low power mobile sensors for sensing discrete events in embedded systems. The proposed scheme comprises system architecture that welcomes all the mobile sensors to communicate with each other using a single platform service. The proposed system enhances the concept of smart building in three stages (i.e., visualization, data analysis, and application). For low power mobile sensors, we propose a communication model, which provides a common medium for communication. Finally, the results show that the proposed system architecture efficiently processes, analyzes, and integrates different datasets efficiently and triggers actions to provide safety measurements for the elderly, patients, and others.

Efficient Instruction and Data Caching for High Performance Embedded Processors

1970 ◽  
pp. 9
Author(s):  
A. Ferrerón Labari ◽  
D. Suárez Gracia ◽  
V. Viñals Yúfera
Keyword(s):  
Embedded Systems ◽  
Power Consumption ◽  
Low Power ◽  
Interconnection Networks ◽  
High Performance ◽  
Critical Issue ◽  
Content Management ◽  
Structure Design ◽  
Portable Devices ◽  
On Chip

In the last years, embedded systems have evolved so that they offer capabilities we could only find before in high performance systems. Portable devices already have multiprocessors on-chip (such as PowerPC 476FP or ARM Cortex A9 MP), usually multi-threaded, and a powerful multi-level cache memory hierarchy on-chip. As most of these systems are battery-powered, the power consumption becomes a critical issue. Achieving high performance and low power consumption is a high complexity challenge where some proposals have been already made. Suarez et al. proposed a new cache hierarchy on-chip, the LP-NUCA (Low Power NUCA), which is able to reduce the access latency taking advantage of NUCA (Non-Uniform Cache Architectures) properties. The key points are decoupling the functionality, and utilizing three specialized networks on-chip. This structure has been proved to be efficient for data hierarchies, achieving a good performance and reducing the energy consumption. On the other hand, instruction caches have different requirements and characteristics than data caches, contradicting the low-power embedded systems requirements, especially in SMT (simultaneous multi-threading) environments. We want to study the benefits of utilizing small tiled caches for the instruction hierarchy, so we propose a new design, ID-LP-NUCAs. Thus, we need to re-evaluate completely our previous design in terms of structure design, interconnection networks (including topologies, flow control and routing), content management (with special interest in hardware/software content allocation policies), and structure sharing. In CMP environments (chip multiprocessors) with parallel workloads, coherence plays an important role, and must be taken into consideration.

Asynchronous DSP for low-power energy-efficient embedded systems

2011 ◽  
Vol 35 (3) ◽  
pp. 318-328 ◽  
Author(s):  
Yiqiong Shi ◽  
Bah-Hwee Gwee ◽  
Joseph Chang
Keyword(s):  
Embedded Systems ◽  
Low Power ◽  
Energy Efficient

scholarly journals MEMBANGUN PENDIDIKAN KARAKTER DALAM MASYARAKAT

2013 ◽  
Vol 13 (1) ◽  
pp. 1
Author(s):  
Sri Suyanta
Keyword(s):  
Early Childhood ◽  
Character Education ◽  
The Elderly ◽  
Social Environments ◽  
Human Beings ◽  
Elderly Age ◽  
The Past ◽  
Three Stages ◽  
At Home

Character education is a necessity across the area, time and age. Character education is absolutely necessary not only in school, but also at home and in other social environments. It was prioritized since the past, present and future. Even today the students in character education is no longer for an early childhood but also adult and even the elderly age. Therefore character education should be designed and implemented systematically and simultaneously to help the students understand the human behavioral values which are associated with someoneself, fellow human beings, the environment and his or her Lord. Character education can be reached through three stages, namely socialization of the introduction, internalization, application in life.

scholarly journals Industrial Examples of Formal Specifications for Test Case Generation

10.29007/z9ph ◽  
2018 ◽  
Author(s):  
Hendrik Roehm ◽  
Rainer Gmehlich ◽  
Thomas Heinz ◽  
Jens Oehlerking ◽  
Matthias Woehrle
Keyword(s):  
Embedded Systems ◽  
Requirements Engineering ◽  
Automotive Industry ◽  
Test Case Generation ◽  
Test Case ◽  
Formal Specifications ◽  
Discrete Events ◽  
The Past ◽  
Formal Representations

While requirements engineering has received considerable attention inacademia over the past years, formalization of requirements for physicallyinfluenced systems is still a difficult task in practice. In this paper, we giveformal representations of some typical requirement classes arising in theautomotive industry. We divide these patterns into three main classes:those mostly referring to properties of continuous signals, those mostlyreferring to discrete events and those referring to similarity to a referencesignal. We discuss these patterns on concrete examples from automotiveembedded systems, where specifications are used for test case generation.

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