scholarly journals Augmentation of a SCADA based firewall against foreign hacking devices

2020 ◽  
Vol 10 (2) ◽  
pp. 1359
Author(s):  
Abhishek Mungekar ◽  
Yashraj Solanki ◽  
R. Swarnalatha
Keyword(s):  
Transmission Line ◽  
Network Traffic ◽  
Data Transmission ◽  
Research Paper ◽  
Data Passing

An Industrial firewall is a system used to supervise and regulate traffic to and from a network for the purpose of securing appliances on a network. It analyzes the data passing through it to an already defined surveillance criteria or protocols, discarding data that does not meet the protocol’s requirements. In effect, it is a filter preventing undesirable network traffic and selectively limiting the type of transmission that occurs between a secured transmission line. In this research paper a SCADA based Firewall is implemented for protection of the data transmission to a PLC, against external hacking devices. This firewall is virtually exposed to several external hackers and the degree of vulnerability is carefully studied, in order to develop an ideal Firewall.

Research of Interleaved Code Applied in XCP Signal Processing

2012 ◽  
Vol 433-440 ◽  
pp. 3433-3438
Author(s):  
Zhi Cheng Jia ◽  
Xiao Hua Song ◽  
Yong Jun Li ◽  
Yan Zhang ◽  
Ning Liu
Keyword(s):  
Signal Processing ◽  
Velocity Profile ◽  
Transmission Line ◽  
Time Use ◽  
Data Transmission ◽  
Water Velocity ◽  
Processing Technology ◽  
Observation Instruments ◽  
Current Profiler ◽  
Fast Access

The XCP(eXpendable Current Profiler, XCP) is a one-time use of the current profiler observation instruments which is cheap, fast access to the parameters of the water velocity profile. The signal processing is an important part of the research of XCP. The paper discusses the coding study in the signal processing technology, analysises the interference and noise of the transmission line, uses the interleaved code method for reducing errors to improve the reliability of the communication, and simulates the interleaving encoding and decoding system by the Systemview tool, demonstrates the reliability and feasibility of data transmission by using interleaved coded.

scholarly journals Identification power line sections with increased electricity losses using sensors with Wi-Fi technology for data transmission

2020 ◽  
Vol 178 ◽  
pp. 01053
Author(s):  
A.V. Vinogradov ◽  
A.V. Bukreev ◽  
V.E. Bolshev ◽  
A.V. Vinogradova ◽  
M.O. Ward ◽  
...  
Keyword(s):  
Transmission Line ◽  
Data Transmission ◽  
Single Phase ◽  
Power Transmission ◽  
Power Line ◽  
Measured Data ◽  
Power Lines ◽  
Power Transmission Line ◽  
Central Unit ◽  
Three Phase

The article presents portable timers-electricity meters (PTEM) which are devices for examining 0.4 kV power lines. There are two developed several versions of the devices: single-phase PTEM used to examine single-phase branch lines to consumers, and three-phase PTEM used for any power line sections. Also, the method to identify sections of power lines with increased electricity losses by means of these devices is presented. The paper considers the application of the three-phase PTEM with Wi-Fi technology to transmit data. Up to six independent three-phase PTEMs with Wi-Fi technology can be installed at different points of the power transmission line and transmit measured data in real time to the central unit. The use of these devices allows determining both technological and commercial losses of electricity in different power line sections and draw conclusions about whether these losses are overestimated. On the basis of this, measures are taken to reduce losses.

Research on Access Network Communication Technology for Condition Monitoring System of Power Transmission Line

2014 ◽  
Vol 1008-1009 ◽  
pp. 684-689
Author(s):  
De Long Yang ◽  
Jie Tong ◽  
Gang Xu ◽  
Jin Long Liu ◽  
Lin Yang
Keyword(s):  
Communication Network ◽  
Transmission Line ◽  
Monitoring System ◽  
Condition Monitoring ◽  
Data Transmission ◽  
Power Transmission ◽  
Access Network ◽  
Power Transmission Line ◽  
Condition Monitoring System ◽  
Network Technologies

Power transmission line monitoring is a general appellation of automated monitoring and scientific management for power transmission line by advanced techniques, and it’s an important basis for achieving smart grid. Its data transmission system is divided into access network and data network, the access network consists of a variety of terminals, tower nodes and aggregation nodes, which includes on-site and remote networks. The application of flexible and reliable network would guarantee to achieve a high-speed, reliable and transparent data transfer between master station and terminals in the system. According to the data transmission requirements of transmission line condition monitoring system, this paper studies the communication network technologies for access network in the perspective of private and public networks, and after a comparative analysis of these technologies, it proposes a principle of how to select reasonable communication network technologies for different application scenarios.

Design and Implementation of Public Bicycle Rental System Service Platform Based on IOCP and JSON

2014 ◽  
Vol 998-999 ◽  
pp. 1100-1103 ◽  
Author(s):  
Ling Ling Chen ◽  
Jun Huang
Keyword(s):  
Network Traffic ◽  
Data Transmission ◽  
Communication System ◽  
Repetition Rate ◽  
System Performance ◽  
Transmission Time ◽  
Practical Application ◽  
Service Platform ◽  
Design And Implementation ◽  
System Service

In view of the practical application, this paper presents a communication system based on IOCP+JSON, using fewer threads to provide services for more users, can solve the user concurrency. Optimize a compression algorithm for JSON data to reduce the data repetition rate and network traffic consumption, apparently shorten the data transmission time and improve the system performance.

High-Accuracy Optical Subassembly for High Speed Data Transmission above 10 Gb/s/ch

2008 ◽  
Vol 580-582 ◽  
pp. 159-162 ◽  
Author(s):  
Sung Hwan Hwang ◽  
Jung Woon Lim ◽  
Hyo Hoon Park ◽  
Myung Yong Jeong ◽  
Byung Sup Rho
Keyword(s):  
Transmission Line ◽  
Data Transmission ◽  
High Speed ◽  
High Accuracy ◽  
Optical Coupling ◽  
Coupling Loss ◽  
High Speed Data ◽  
Speed Data Transmission

An optical subassembly which is suitable for high speed and parallel optical modules was introduced. The optical subassembly has features of low optical coupling loss less than 1.5 dB and wide 3-dB bandwidth more than 20 GHz in the view of the transmission line. And it was fabricated with a vertically stacked structure cost-effectively and precisely.

scholarly journals Analysis and Theoretical Evaluation of Iraqi High Voltage Power Transmission Line

2018 ◽  
pp. 63-76
Keyword(s):  
Transmission Line ◽  
High Voltage ◽  
Data Transmission ◽  
Power Transmission ◽  
Line Length ◽  
Electrical Network ◽  
Theoretical Evaluation ◽  
Load Impedance ◽  
Electrical Wiring ◽  
Simulator Program

The Powerline Communications (PLC) technology allows data transmission through electrical wires. Thus the electrical wiring will represent a data transmission channel conformable to the physical layer of the open system interconnection (OSI) model. In this work, the specifications of the Iraqi electrical network were used to model a high-voltage transmission line using a transmission (ABCD) matrix and use it as a communication channel for transmitting data within a narrow band (30-500). The transfer function of the suggested model was derived and its performance analysis was performed to evaluate the Line length effect, load impedance ZL and the source impedance ZS on the channel frequency response. This analysis was done with the help of Matlab16a simulator program.

scholarly journals Development of an interface monitor to operate over a data transmission line

1994 ◽  
Author(s):  
◽  
Brett Robert Crankshaw
Keyword(s):  
Transmission Line ◽  
Data Transmission ◽  
Telephone Network ◽  
Data Network ◽  
The Public ◽  
International Data

One of the telecommunication facilities provided by Telkom S.A. is connection to the National and International X.25 data network. This network follows the international data protocol standard based upon the CCITT Recommendation X.25. The network allows data calls to be made from the X.25 user in very much the same fashion as a caller on the Public Switched Telephone Network (PSTN), in that the caller must specify the number of the called user on the network in order to be connected. It is in this environment, specifically in the testing and maintaining of these data circuits, that this study is based.

scholarly journals Design of On-line Monitoring System of Transmission Line Based on Beidou Short Message

2021 ◽  
Vol 261 ◽  
pp. 01022
Author(s):  
Gui’liang Deng ◽  
Jing Luo ◽  
Baolin Gui
Keyword(s):  
Transmission Line ◽  
Monitoring System ◽  
Data Transmission ◽  
Online Monitoring ◽  
Mobile Network ◽  
Small Data ◽  
Short Message ◽  
Mountainous Areas ◽  
Transmission Scheme ◽  
Message Communication

In view of the problem that the lack of wireless mobile network in remote mountainous areas makes the transmission line online monitoring data transmission difficult, this paper proposes a data transmission scheme using Beidou short message communication. And aiming at the problems of small data transmission and low reliability in Beidou short message communication, a new data coding method is designed. The actual results show that: the proposed transmission line online monitoring system based on Beidou short message communication has a high success rate of transmission line information collection, which is an efficient and reliable scheme for transmission line online monitoring in remote mountainous areas.

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