scholarly journals Embedded System Hardware

2021 ◽  
pp. 127-201
Author(s):  
Peter Marwedel
Keyword(s):  
Information Processing ◽  
Power Consumption ◽  
Embedded System ◽  
Physical Environment ◽  
Performance Timing

AbstractIn this chapter, we will present the interface between the physical environment and information processing (the cyphy-interface) together with the hardware required for processing, storing, and communicating information. Due to considering CPS, covering the cyphy-interface is indispensable. The need to cover other hardware components as well is a consequence of their impact on the performance, timing characteristics, power consumption, safety, and security.

The effects of compiler optimizations on embedded system power consumption

2008 ◽  
Author(s):  
Shuhaizar Daud ◽  
R. Badlishah Ahmad ◽  
Nukala S. Murhty
Keyword(s):  
Power Consumption ◽  
Embedded System ◽  
Compiler Optimizations ◽  
System Power

scholarly journals Toward Cost-Effective Mobile Video Streaming through Environment-Aware Watching State Prediction

Sensors ◽  
2019 ◽  
Vol 19 (17) ◽  
pp. 3654 ◽  
Author(s):  
Xuanyu Wang ◽  
Weizhan Zhang ◽  
Xiang Gao ◽  
Jingyi Wang ◽  
Haipeng Du ◽  
...  
Keyword(s):  
Power Consumption ◽  
Video Streaming ◽  
Data Transmission ◽  
Physical Environment ◽  
Time Window ◽  
User Behavior ◽  
Cost Effective ◽  
Mobile Video ◽  
Data Usage ◽  
Mobile Video Streaming

Mobile video applications are becoming increasingly prevalent and enriching the way people learn and are entertained. However, on mobile terminals with inherently limited resources, mobile video streaming services consume too much energy and bandwidth, which is an urgent problem to solve. At present, research on cost-effective mobile video streaming typically focuses on the management of data transmission. Among such studies, some new approaches consider the user’s behavior to further optimize data transmission. However, these studies have not adequately discussed the specific impact of the physical environment on user behavior. Therefore, this paper takes into account the environment-aware watching state and proposes a cost-effective mobile video streaming scheme to reduce power consumption and mobile data usage. First, the watching state is predicted by machine learning based on user behavior and the physical environment during a given time window. Second, based on the resulting prediction, a downloading algorithm is introduced based on the user equipment (UE) running mode in the LTE system and the VLC player. Finally, according to the corresponding experimental results obtained in a real-world environment, the proposed approach, compared to its benchmarks, effectively reduces the data usage (14.4% lower than that of energy-aware, on average) and power consumption (about 19% when there are screen touches) of mobile devices.

scholarly journals Power Saving Proxies for Web Servers

2019 ◽  
Vol 63 (2) ◽  
pp. 179-192
Author(s):  
Karl J O’Dwyer ◽  
Eoin Creedon ◽  
Mark Purcell ◽  
David Malone
Keyword(s):  
Energy Efficiency ◽  
Power Consumption ◽  
Embedded System ◽  
Power Saving ◽  
Web Servers ◽  
Small Energy ◽  
Significant Percentage ◽  
Improve Energy Efficiency ◽  
Data Centre ◽  
Energy Footprint

Abstract Electricity is a major cost in running a data centre, and servers are responsible for a significant percentage of the power consumption. Given the widespread use of HTTP, both as a service and a component of other services, it is worthwhile reducing the power consumption of web servers. In this paper we consider how reverse proxies, commonly used to improve the performance of web servers, might be used to improve energy efficiency. We suggest that when demand on a server is low, it may be possible to switch off servers. In their absence, an embedded system with a small energy footprint could act as a reverse proxy serving commonly-requested content. When new content is required, the reverse proxy can power on the servers to meet this new load. Our results indicate that even with a modest server, we can get a 25% power saving while maintaining acceptable performance.

The effects of compiler optimisations on embedded system power consumption

2009 ◽  
Vol 2 (1/2) ◽  
pp. 73
Author(s):  
Shuhaizar Daud ◽  
R. Badlishah Ahmad ◽  
Nukala S. Murthy
Keyword(s):  
Power Consumption ◽  
Embedded System ◽  
System Power

Development of New Type Centralized Engineering Seismograph

2013 ◽  
Vol 333-335 ◽  
pp. 2412-2416
Author(s):  
Jin Feng Yan ◽  
Ming Deng ◽  
Yan Jun Li ◽  
Qi Sheng Zhang
Keyword(s):  
Power Consumption ◽  
Embedded System ◽  
Low Power ◽  
Program Implementation ◽  
High Performance ◽  
Hardware Design ◽  
Low Power Consumption ◽  
System Solution ◽  
Software Program ◽  
New Type

SoPC technology is a high-performance, low-power consumption embedded system solution based on embedded microprocessor, providing a new way for developing new type centralized engineering seismograph. The paper presents the development of a new type centralized engineering seismograph based on SoPC technology, which adopts FPGA design based on SoPC technology for the hardware design and embedded software program development of the 48-channel engineering seismograph. According to actual needs of currently available centralized engineering seismograph, combining the actual characteristics of SoPC embedded technology, a portable, low-power consumption and high-performance new type centralized engineering seismograph is constructed. The paper describes the hardware design and software program implementation of the centralized engineering seismograph in detail.

scholarly journals An Autonomous Wireless Sensor Node Based on Hybrid RF Solar Energy Harvesting

2021 ◽  
Vol 2021 ◽  
pp. 1-25
Author(s):  
John Nicot ◽  
Ludivine Fadel ◽  
Thierry Taris
Keyword(s):  
Power Consumption ◽  
Embedded System ◽  
Low Power ◽  
Environmental Data ◽  
Low Power Consumption ◽  
Wireless Sensor Node ◽  
Sleep State ◽  
Total Consumption ◽  
Power Sources ◽  
Solar Energy Harvesting

The widespread deployment of the Internet of Things (IoT) requires the development of new embedded systems, which will provide a diverse array of different intelligent functionalities. However, these devices must also meet environmental, maintenance, and longevity constraints, while maintaining extremely low-power consumption. In this work, a batteryless, low-power consumption, compact embedded system for IoT applications is presented. This system is capable of using a combination of hybrid solar and radiofrequency power sources and operates in the 900 MHz ISM band. It is capable of receiving OOK or ASK modulated data and measuring environmental data and can transmit information back to the requester using GFSK modulated data. The total consumption of the system during its sleep state is 920 nW. Minimum power required to operate is −15.1 dBm or 70 lux, when using only radiofrequency or solar powering, respectively. The system is fully designed with components off the shelf (COTS).

scholarly journals A Novel Design and Implementation of New Double Feynman and Six-correction logic (DFSCL) gates in Quantum-dot Cellular Automata (QCA)

2017 ◽  
Vol 13 (15) ◽  
pp. 265
Author(s):  
Sajjad Waheed ◽  
Sharmin Aktar ◽  
Ali Newaz Bahar
Keyword(s):  
Information Processing ◽  
Cellular Automata ◽  
Power Consumption ◽  
Low Power ◽  
Logic Gate ◽  
Processing System ◽  
Logic Gates ◽  
Low Power Consumption ◽  
Switching Frequency ◽  
Promising Alternative

In recent years, quantum cellular automata (QCA) have been used widely to digital circuits and systems. QCA technology is a promising alternative to CMOS technology. It is attractive due to its fast speed, small area and low power consumption. The QCA offers a novel electronics paradigm for information processing and communication. It has the potential for attractive features such as faster speed, higher scale integration, higher switching frequency, smaller size and low power consumption than transistor based technology. In this paper, Double Feynman and Six-correction logic gate (DFSCL) is proposed based on QCA logic gates: MV gate and Inverter gate. The proposed circuit is a promising future in constructing of nano-scale low power consumption information processing system and can stimulate higher digital applications in QCA.

scholarly journals Development of web-based collaborative framework for the simulation of embedded systems

2016 ◽  
Vol 3 (4) ◽  
pp. 363-369
Author(s):  
Woong Yang ◽  
Soo-Hong Lee ◽  
Yong Zhu Jin ◽  
Hyun-Tae Hwang
Keyword(s):  
Internet Of Things ◽  
Embedded System ◽  
Virtual Environment ◽  
Communication Technology ◽  
Physical Environment ◽  
Nuclear Power ◽  
Real Space ◽  
Virtual Space ◽  
Barriers To Entry ◽  
Web Based

Abstract Cyber Physical System (CPS) and Internet of Things (IoT) are hot objects of interest as an extension of the embedded system. These interactive products and systems contain Mobile Devices which are most popular and used most frequently. Also these have been widely used from the control of the Nuclear Power Control System (NPCS) to IoT Home Service. Information & Communication Technology (ICT) topics of trend fused-complex current Information Technology (IT) and Communication Technology (CT) are closely linked to real space and virtual space. This immediately means the arrival of the ultra-connected society. It refers to a society in which various objects surrounding the human innovation and change in the social sector are expected through the connection between the data which are to be generated. In addition, studies of Tool-kit for the design of such systems are also actively pursued. However, only increased cooperation and information sharing between the physical object consists of a variety of machinery and equipment. We have taken into consideration a number of design variables of the high barriers to entry about the product. In this study, It has been developed a Web-based collaboration framework which can be a flexible connection between macroscopically virtual environment and the physical environment. This framework is able to verifiy and manage physical environments. Also it can resolve the bottlenecks encountered during the base expansion and development process of IoT (Internet of Things) environment. Highlights Flexible connection between a virtual environment and a physical environment. Resolving the bottlenecks encountered during the development of IoT environment. Examining the product instantly and verifying the production design qualities through online. Having a role of the managing board based on big data.

scholarly journals Development of a Wireless Temperature Sensor Using Polymer-Derived Ceramics

2016 ◽  
Vol 2016 ◽  
pp. 1-5 ◽  
Author(s):  
Ran Zhao ◽  
Gang Shao ◽  
Ni Li ◽  
Chengying Xu ◽  
Linan An
Keyword(s):  
High Temperature ◽  
Power Consumption ◽  
Embedded System ◽  
Real World ◽  
Temperature Sensor ◽  
Wireless Transmission ◽  
Low Power Consumption ◽  
Compact Size ◽  
Real World Applications ◽  
The Embedded System

A temperature sensor has been developed using an embedded system and a sensor head made of polymer-derived SiAlCN ceramics (PDCs). PDC is a promising material for measuring high temperature and the embedded system features low-power consumption, compact size, and wireless transmission. The developed temperature sensor has been experimentally tested to demonstrate the possibility of using such sensors for real world applications.

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