scholarly journals Accounting System: A Fine-Grained CPU Resource Protection Mechanism for Embedded System

2006 ◽  
Author(s):  
M. Sugaya ◽  
S. Oikawa ◽  
T. Nakajima
Keyword(s):  
Embedded System ◽  
Accounting System ◽  
Protection Mechanism ◽  
Fine Grained ◽  
System A ◽  
Resource Protection

scholarly journals Failure Recovery In SDN: A Segment Routing Based Link Protection Approach

2021 ◽  
Author(s):  
Mirja Shahriar Enan
Keyword(s):  
Computer Network ◽  
Complex Structure ◽  
Failure Recovery ◽  
Total Recovery ◽  
Protection Mechanism ◽  
Fine Grained ◽  
Memory Efficiency ◽  
Protection Method ◽  
Local Recovery ◽  
Link Protection

The present computer network has been evolved into a complex structure with a growing challenge to manage and scale modern day’s requirements. A new approach to tackle these difficulties is SDN, which empowers network with programmability and is designed to perform fine grained traffic forwarding decisions. However, similar to the need of traditional networks, fault tolerance is necessary to achieve high availability. In this thesis, we propose a link protection method based on the Segment Routing (SR) for rapid failure recovery in OpenFlow based SDN. Our proposed scheme performs local recovery at the switch level without the controller intervention, thus significantly reducing the total recovery time. Additionally, it reduces initial load on the controller while proactively computing the backup paths by minimizing the algorithm complexity. Moreover, memory efficiency is achieved by using a per-link protection with aggregated flow rules instead of traditional per-flow based protection mechanism. In Segment Routing, we may encounter the limitation on the size of the label stack, known as Segment List Depth (SLD). Therefore, we also propose an efficient label encoding algorithm to mitigate the SLD impact.

A FPGA-Based Cloud-Edge Collaboration Platform in Cloud Manufacturing

2021 ◽  
Author(s):  
Chuan Xiao ◽  
Chun Zhao ◽  
Yue Liu ◽  
Lin Zhang
Keyword(s):  
Embedded System ◽  
Cloud Manufacturing ◽  
Computing Power ◽  
Edge Node ◽  
Computing Model ◽  
System A ◽  
Task Model ◽  
Time Sensitivity ◽  
System Module ◽  
The Embedded System

Abstract To address the issue that many devices are connected to the cloud during the manufacturing process, which causes severe delays in analyzing massive manufacturing data in the cloud, an FPGA-based architecture of cloud edge collaboration is proposed. In this architecture, manufacturing equipment is connected to the cloud through an FPGA-based embedded edge node. The device data obtained by the edge node is processed by the FPGA module and the embedded system module according to the time-sensitivity. Considering the limited computing power of a single edge node, to realize cloud-edge collaborative computing, a communication-oriented task model and a computing model for edge nodes are designed. The task model learns cloud to edge and edge-edge communication, and the task model realizes the function of migrating computing tasks to other nodes. The edge node system’s design is realized based on the communication-oriented task model and the computing model for edge nodes. The cloud edge collaboration method is researched and explored based on this system. A series of comparative experiments, comparing the time delay of the FPGA module and embedded system module processing the same data, the framework’s usability and data processing ability can be verified.

information. How do produced quantities influence the costs per unit? How can costs, calculated at different times, be compared? What is the best way to distribute the overheads? etc.. .. After the setting up of the accounting system, a long process of maturation began. This is evident, on the one hand, from the discussions of the Board of Directors and, on the other hand from the differences between the two sets of accounts approved by the Board of Directors in 1832 and 1872. The structure of the Com­ pany evolved considerably between 1832 and 1880: two mergers occurred, the first one in 1858 with Saint-Quirin, a glass manufac­ turer, and the second one in 1872 with Perret-Olivier, whose fields of activity were mining and chemistry. After the second merger, the sales figures for chemistry outstripped the sales of glass and mirrors and during this time the Company had grown to include 16 branches in France and Germany. DISCUSSIONS ON INDUSTRIAL ACCOUNTING All the questions dealing with the setting up of a management accounting system were discussed by the Boards of Directors. In most cases, the solutions were only practical ones. There never seemed any intent or desire by the Company to make any theory or any generalization of those practical solutions. Direct and indirect costs. The distinction between direct and indirect cost was made first in 1829 with regards to labor charges.9 Salaries, of which a comprehensive list is given above, will be separated into two groups: 1) Those concerning directly and specially with the manufacturing process. 2) Those concerning administration. At the end of the year, the former will be divided and included in the suitable items of expenses; then the latter will be included in the overheads. However, direct labor is likely to have included only the wages of workers having a permanent job, and excluded those of the day laborer, which are by their very nature fluctuating. In the soda factory, the majority of workers were day laborers, thus making it difficult to estimate precisely the ratio between direct and indirect labor charges. Production level and cost per unit. In the previously quoted chief accountant’s report concerning the financial year 1827-1828,

2014 ◽  
pp. 259-259
Keyword(s):  
Board Of Directors ◽  
Boards Of Directors ◽  
Indirect Costs ◽  
The Other ◽  
Production Level ◽  
Accounting System ◽  
Direct And Indirect Costs ◽  
System A ◽  
The Board Of Directors ◽  
The One

scholarly journals A Novel Control Strategy for Multiple Switches Based on Electro-Rheological Fluid

2012 ◽  
Vol 4 ◽  
pp. 95-100 ◽  
Author(s):  
Lu Ning Xu ◽  
Han Li ◽  
Jun Biao Liu
Keyword(s):  
Embedded System ◽  
Control Strategy ◽  
System Application ◽  
Blind People ◽  
System A ◽  
Novel Method ◽  
Electronic Parts

A compact or portable mechatronic embedded system application has a strictly demands of volume and/or power consuming. Comparing with electronic parts, switches and/or actuators take the most proportion of volume or weight and power consuming of the whole system. A novel method of connecting multiple switches/actuators built by using electro-rheological fluid and a pair of governing electrodes and their control strategy are introduced in this paper. By using this method, the numbers of control components are changed from N times M to N plus M, the volume and weight reduced largely.A series structure is used in the application on multi-line Braille electro-book for blind people as a demonstration of this novel method. It provides a novel solution of shrinking system for a compact or portable mechatronic embedded system application.

scholarly journals Non-Invasive Method for In-Service Induction Motor Efficiency Estimation Based on Sound Acquisition

2020 ◽  
Vol 10 (11) ◽  
pp. 3757
Author(s):  
Júlio César da Silva ◽  
Thyago Leite de Vasconcelos Lima ◽  
José Anselmo de Lucena Júnior ◽  
Gabriela Jordão Lyra ◽  
Filipe Vidal Souto ◽  
...  
Keyword(s):  
Embedded System ◽  
Motor Speed ◽  
Monitoring Methods ◽  
Increase Energy Efficiency ◽  
Non Invasive ◽  
System A ◽  
Motor Efficiency ◽  
Efficiency Estimation ◽  
Invasive Method ◽  
The Fourier Transform

Induction motors (IMs) are present in practically all production processes and account for two-thirds of the energy consumption in industrial settings. Therefore, monitoring them is essential to prevent accidents, optimize production, and increase energy efficiency. Monitoring methods found in the literature require a certain level of invasiveness, causing some applications to be unfeasible. In the present study, a new completely non-invasive method implemented in an embedded system performs the embedded processing of the sound signal emitted by an in-service IM to estimate speed, torque, and efficiency. Motor speed is estimated from the analysis in the frequency domain using the Fourier Transform. Torque and efficiency are estimated from the speed and motor nameplate information. To perform the tests and validate the proposed method/system, a workbench with a controllable torque was used. The workbench was also equipped to allow the results to be compared with the airgap torque method. The results indicate a high accuracy for the nominal load (error of approximately 1%) in the measurement of the efficiency and torque, and a mean relative error of 0.2% for the speed.

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