Development of a substation digital protection and control system using fiber-optic local area network

1989 ◽  
Vol 4 (3) ◽  
pp. 1668-1675 ◽  
Author(s):  
M. Suzuki ◽  
T. Matsuda ◽  
N. Ohashi ◽  
Y. Sano ◽  
R. Tsukui ◽  
...  
Keyword(s):  
Control System ◽  
Fiber Optic ◽  
Local Area Network ◽  
Local Area ◽  
Area Network ◽  
Digital Protection ◽  
Protection And Control ◽  
And Control

Development of a Substation Digital Protection and Control System Using a Fiber-Optic Local Area Network

1989 ◽  
Vol 9 (7) ◽  
pp. 51-52 ◽  
Author(s):  
M. Suzuki ◽  
T. Matsuda ◽  
N. Ohashi ◽  
Y. Sano ◽  
R. Tsukui ◽  
...  
Keyword(s):  
Control System ◽  
Fiber Optic ◽  
Local Area Network ◽  
Local Area ◽  
Area Network ◽  
Digital Protection ◽  
Protection And Control ◽  
And Control

Real-time fiber optic network for an integrated digital protection and control system

1992 ◽  
Vol 7 (1) ◽  
pp. 160-166
Author(s):  
Wook Hyun Kwon ◽  
Beom Jin Chung ◽  
Jung Woo Park ◽  
Gi Won Lee ◽  
Man Chul Yoon
Keyword(s):  
Control System ◽  
Real Time ◽  
Fiber Optic ◽  
Fiber Optic Network ◽  
Digital Protection ◽  
Protection And Control ◽  
And Control ◽  
Optic Network

Supervised Operation Monitoring and Control System of Rotating Rolls

2003 ◽  
Author(s):  
Pekka Salmenpera¨ ◽  
Juha Miettinen
Keyword(s):  
Control System ◽  
Data Transfer ◽  
Local Area Network ◽  
Measurement Data ◽  
Fuzzy Rule ◽  
Local Area ◽  
Area Network ◽  
Monitoring And Control ◽  
Knowledge Based ◽  
And Control

The dynamic behavior of rotating machinery depends on the construction and foundation of the machine and in addition of the machine running parameters. By choosing appropriate parameters it is possible to influence considerably on the vibration of the machine. By driving the machine in that kind of an advantageous running window it is possible to minimize the vibration of the machine and to improve the quality of the product, but not to lose the efficiency of the productivity. Machines where the running window is important in maximizing the quality of the product are rotating cylindrical rolls in line contact for example in paper machines and grinding machines. In that kind of machines resonance situations are the most dangerous operation situations. The on-line measurement from rotating machine components requires wireless measurement data transfer applications. Sophisticated systems for that purpose need transfer capacity of several channels and two-way communications. Two-way communications allows the control of the measurement, versatile analysis of measurement signals and the control or supervised control of the running situation of the machine. If network solutions, for example via www are used, it is possible to use remote operation monitoring and control. In this paper a supervised operation monitoring and control system of a pilot roll station at Tampere University of Technology is described. The main components of the system are measurement unit on the end flange of the rotating roll, wireless local area network for measurement data transfer from the rotating roll to the control room computer and the local area network that connects the process control and signal analysis computers together. The system contains also a WWW-based remote control system for measurement signals from the rotating rolls and for the process variables. One possibility in this kind of complicated control situation is to use the fuzzy logics principle. Fuzzy logics are principally suitable for process control when knowledge-based systems fit well in diagnostics. However, fuzzy rule-based control can be defined as a knowledge-based system. For finding out the suitable running windows in the pilot roll station a fuzzy rule-based, supervised roll rotational speed control system is used. The paper describes also the fuzzy systems and comprises preliminary experimental results.

scholarly journals Connetivity Jaringan Public Dengan Satu ISP Menghubungkan Kantor Cabang Dengan Menggunakan Metode Metro Ethernet

2020 ◽  
Vol 6 (2) ◽  
pp. 63-73
Author(s):  
Aziz Setyawan Hidayat ◽  
Sobari - ◽  
Baginda Oloan Lubis ◽  
Pas Mahyu Akhirianto
Keyword(s):  
Metropolitan Area ◽  
Service Provider ◽  
Fiber Optic ◽  
Local Area Network ◽  
Local Area ◽  
Area Network ◽  
Label Switching ◽  
Metropolitan Area Network ◽  
Backbone Network ◽  
Multi Protocol Label Switching

Di zaman sekarang ini komputer merupakan sebuah peralatan yang sangat penting dalam melakukan sistem administrasi dalam sebuah perusahaan dan pertukaran data perusahaan. PT. Tasya Gaya Pesona merupakan perusahaan yang memiliki beberapa cabang yang berada dalam satu kota, yang menggunakan layanan jaringan internet LAN (Local Area Network), sehingga kurang efisien dan perturan data melalui email. Teknologi Metro Ethernet merupakan salah satu perkembangan dari teknologi Ethernet yang dapat menempuh jarak yang luas berskala perkotaan, dengan dilengkapi berbagai fitur yang terdapat pada jaringan Ethernet umumnya. Jaringan Metro Ethernet memberikan layanan dengan menggunakan protokol Ethernet sebagai Metropolitan Area Network (MAN) dengan cara yang sama dengan Local Area Network (LAN) yang menggunakan protokol Ethernet, sehingga jaringan berskala metro dapat dibentuk dengan menggunakan teknologi Ethernet biasa. Metro Ethernet bertindak sebagai jembatan atau bridge dari suatu jaringan menghubungkan wilayah yang terpisah juga menghubungkan LAN dan WAN atau backbone network yang umumnya dimiliki oleh service provider. Pada metropolitan area, perusahaan-perusahaan besar dapat memanfaatkan teknologi Metro Ethernet untuk menghubungkan kantor-kantor cabang mereka ke dalam sistem intranet yang ada di dalam perusahaan tersebut. Dalam transport data, Metro Ethernet menggunakan Multi Protocol Label Switching (MPLS) dan Fiber Optic. Jaringan Metro Ethernet yang saat ini beroperasi di Indonesia menggunakan kabel serat optik dan mempunyai kapasitas 1.000 Mbps atau 1 Gbps. Pada penulisan skripsi ini akan dibahas mengenai konsep dasar jaringan Metro Ethernet, konfigurasi jaringan Metro Ethernet dan perancangan jaringan Metro Ethernet pada PT. Tasya Gaya Pesona sebagai layanan penghubung jaringan antar cabang

Fiber-optic 200-Mbit local area network

1984 ◽  
Author(s):  
D. J. Channin ◽  
J. B. Sergi ◽  
David R. Patterson ◽  
Stefan A. Siegel ◽  
J. P. Viola
Keyword(s):  
Fiber Optic ◽  
Local Area Network ◽  
Local Area ◽  
Area Network

Reser, a Local Area Network Using a Fiber-Optic Ring

1982 ◽  
pp. 167-179
Author(s):  
S. Miège ◽  
R. Baduel ◽  
G. Even ◽  
A. Khalil
Keyword(s):  
Fiber Optic ◽  
Local Area Network ◽  
Local Area ◽  
Area Network

Local Area Network Operations: A Security, Control and Audit Perspective

1990 ◽  
Vol 5 (2) ◽  
pp. 63-72 ◽  
Author(s):  
Rodger Jamieson ◽  
Graham Low
Keyword(s):  
Local Area Network ◽  
Local Area ◽  
Area Network ◽  
Security Measures ◽  
Security Risks ◽  
Information Systems Management ◽  
Security Officers ◽  
Network Operations ◽  
And Control ◽  
Functional Areas

This paper provides a framework for the review of security and control within a local area network environment. Network operations are subdivided into several functional areas or components for further review. Each component or area is briefly explained and the security risks, issues and concerns highlighted. Controls and security measures are proposed as guidelines to counter these threats. An approach to the audit of each major area of network operations is proposed. This suggested framework provides guidance to information system security officers, auditors, communications and network administrators, consultants and information systems management for the review of local area network security during network operations.

Active star coupler based fiber-optic local area network

1987 ◽  
Vol 5 (8) ◽  
pp. 1050-1061 ◽  
Author(s):  
S. Suh ◽  
S. Granlund ◽  
A. Lumsdaine ◽  
D. Snyder ◽  
S. Wetzel ◽  
...  
Keyword(s):  
Fiber Optic ◽  
Local Area Network ◽  
Local Area ◽  
Area Network ◽  
Active Star
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