Industrial Automation Using Wireless Mesh Network

2013 ◽  
Vol 367 ◽  
pp. 417-421
Author(s):  
M. Thangaraja ◽  
K. Suresh Manic ◽  
S. Uma

The use of wireless technology in industrial automation offers a number of potential benefits, from the obvious cost reduction brought about by the elimination of wiring to the availability of better plant information, improved productivity and better asset management. However, its practical implementation faces a number of challenges: lack of a universally agreed standard, security, noisy environment, reliability. Since there is no IEEE standard for using wireless technology in industrial automation it is not possible to use the conventional industrial automation system. We also need better transmission rate for reliable communication. In this paper we proposed an industrial automation system based on wireless multi hop network using FPGA. The multi hop network will provide the reliable communication to central control unit and FPGA will provide the reconfigurable high speed data communication. The design is implemented in Xilinx Spartan 3E FAGA kit and results shows that it will be the solution for future industrial automation problems.

2014 ◽  
Vol 8 (4) ◽  
pp. 598-610
Author(s):  
Ahmed O. Abdul Salam ◽  

Automation via the internet has recently received considerable attention. The prime objective of internetbased process automation underlies, amongmany others, the feasibility of remote monitoring and control of a wide range of distributed and collaborative experimental and manufacturing tools and machineries. Such emphasis would adopt the recent software and hardware development technologies. This paper investigates the minimal hardware and software requirements to design and implement a fully functional academic and industrial automation system that can be readily attached to the available internet/intranet infrastructure. Three tiers mainly constitute the proposed system, the instrumentation and measurement tier, the software platform (for data collection, processing, displaying, and communication), and the client-server tier. The common controllerbased techniques, such as PLC (Programmable Logic Controllers), SCADA (Supervisory Control and Data Acquisition), and DAQ (Data Acquisition) platforms can be very well employed in such applications without sophistication burdens. Eventually, the ultimate intentions of having engineers and technical operators to monitor, control, maintain, and calibrate factory equipment, or students involved in lab experimentation, from local or remote distances can be successfully achieved around the clock. Previous and current practical implementation examples will be verified to assess the feasibility range of existing techniques and their implications.


Polymers ◽  
2021 ◽  
Vol 13 (10) ◽  
pp. 1595
Author(s):  
Asif Javed ◽  
Peter Rättö ◽  
Lars Järnström ◽  
Henrik Ullsten

One severe weakness of most biopolymers, in terms of their use as packaging materials, is their relatively high solubility in water. The addition of kraft lignin to starch coating formulations has been shown to reduce the water solubility of starch in dry coatings. However, lignin may also migrate into aqueous solutions. For this paper, kraft lignin isolated using the LignoBoost process was used in order to examine the effect of pH level on the solubility of lignin with and without ammonium zirconium carbonate (AZC). Machine-glazed (MG) paper was coated in a pilot coating machine, with the moving substrate at high speed, and laboratory-coated samples were used as a reference when measuring defects (number of pinholes). Kraft lignin became soluble in water at lower pH levels when starch was added to the solution, due to the interactions between starch and lignin. This made it possible to lower the pH of the coating solutions, resulting in increased water stability of the dry samples; that is, the migration of lignin to the model liquids decreased when the pH of the coating solutions was reduced. No significant difference was observed in the water vapor transmission rate (WVTR) between high and low pH for the pilot-coated samples. The addition of AZC to the formulation reduced the migration of lignin from the coatings to the model liquids and led to an increase in the water contact angle, but also increased the number of pinholes in the pilot-coated samples.


2012 ◽  
Vol 580 ◽  
pp. 155-159
Author(s):  
Xiang Ming Wang ◽  
Jin Chao Wang ◽  
Dong Hua Sun

In this paper, the real-time EtherCAT technology is introduced in detail, which including operating principle, communication protocol and the superiority performance of EtherCAT i.e. synchronicity, simultaneousness and high speed. To show how to design a slave system that considering the characteristics of application, the method of developing systems based no EtherCAT technology are proposed. Finally, a data acquisition system based on EtherCAT technology is designed. Application of EtherCAT technology can improve the real-time characteristics of data communication in wind power system.


2011 ◽  
Vol 225-226 ◽  
pp. 743-746
Author(s):  
Zhen Li ◽  
Yan Fang Zhao ◽  
Min Li

As one of the most important parts of the financial organizations nowadays, banking industry plays an important role in not just the area of high-speed operation of the sociaty’s economy but also in the area of currency exchange. The Wave of Information Technology, which has caused a swift-development of the whole world’s economy, brings about both opportunity and challengs never arised to the banking industry. The sociaty, as it is becoming more intellectual and automatic, has post a harder demand for the working efficiency of the banking industry. Therefore, the banking industry must enhance its construction of informationization and automation in order to strengthern its competitiveness as well as the economic construction of service sociaty. Banking office automation will improve the working efficiency along with modernized management level in the light of advanced computer technology.


1994 ◽  
Vol 40 (1) ◽  
pp. 20-27 ◽  
Author(s):  
Tay-Her Tsaur ◽  
Kwang-Cheng Chen ◽  
Chenhsin Lien ◽  
Ming-Tang Shih ◽  
C.P.J. Tzeng

2018 ◽  
Vol 8 (12) ◽  
pp. 2460 ◽  
Author(s):  
Cyntia Vargas Martínez ◽  
Birgit Vogel-Heuser

System intrusions violate the security of a system. In order to maintain it, it is necessary to decrease the chances of intrusions occurring or by detecting them as soon as they ensue in order to respond to them in a timely manner. These responses are divided in two types: passive or reactive responses. Passive responses are limited to only notification and alerting; whereas, reactive responses influence the intrusion by undoing or diminishing its consequences. Unfortunately, some reactive responses may influence the underlying system where the intrusion has occurred. This is especially a concern in the field of Industrial Automation Systems, as these systems are critical and have a well-defined set of operational requirements that must be maintained. Hence, automatic reactive responses are often not considered or are limited to human intervention. This paper addresses this issue by introducing a concept for reactive protection that integrates the automatic execution of active responses that do not influence the operation of the underlying Industrial Automation System. This concept takes into consideration architectural and security trends, as well as security and operational policies of Industrial Automation Systems. It also proposes a set of reactive actions that can be taken in the presence of intrusions in order to counteract them or diminish their effects. The feasibility and applicability of the presented concept for Industrial Automation Systems is supported by the implementation and evaluation of a prototypical Reactive Protection System.


2014 ◽  
Vol 513-517 ◽  
pp. 772-776
Author(s):  
Chen Wang ◽  
Hong Ai ◽  
Lie Wu ◽  
Yun Yang

The smart grid that the next-generation electric power system is studied intensively as a promising solution for energy crisis. One important feature of the smart grid is the integration of high-speed, reliable and secure data communication networks to manage the complex power systems effectively and intelligently. The goal of smart grid is to achieve the security of operation, economic efficient and environmental friendly. To achieve this goal, we proposed a fine-grained access control model for smart grid. In order to improve the security of smart grid, an access-trust-degree algorithm is proposed to evaluate the reliability of the user who want to access to the smart grid.


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