Wyniki wyszukiwania dla: KNX SYSTEM, SECURE DATA TRANSMISSION

• The methods of secure data transmission in the KNX system

  Publikacja

  • M. Porzeziński

  - Journal of Polish Safety and Reliability Association, Summer Safety and Reliability Seminars - Rok 2014

  The article presents the demands concerning data security in distributed building automation systems and shows the need for providing mechanisms of secure communication in the KNX system. Three different methods developed for KNX data protection are discussed: EIBsec, KNX Data Security and the author's method. Their properties are compared and potential areas of application are presented.

  Pełny tekst do pobrania w serwisie zewnętrznym

• Secure transmission of visual image in the VTS system using fingerprinting

  Publikacja

  • B. Czaplewski
  • K. Czaplewski

  - Zeszyty Naukowe Akademii Morskiej w Szczecinie - Rok 2012

  Pełny tekst do pobrania w portalu

• The secure transmission protocol of sensor Ad Hoc network

  Publikacja

  • A. Marczak

  - Zeszyty Naukowe Akademii Marynarki Wojennej - Rok 2015

  The paper presents a secure protocol of radio Ad Hoc sensor network. This network operates based on TDMA multiple access method. Transmission rate on the radio channel is 57.6 kbps. The paper presents the construction of frames, types of packets and procedures for the authentication, assignment of time slots available to the node, releasing assigned slots and slots assignment conflict detection.

  Pełny tekst do pobrania w serwisie zewnętrznym

• The Transmission Protocol of Sensor Ad Hoc Networks

  Publikacja

  • A. Marczak

  - Rok 2015

  This paper presents a secure protocol for a radio Ad Hoc sensor network. This network uses the TDMA multiple access method. The transmission rate on the radio channel is 57.6 kbps. The paper presents the construction of frames, types of packets and procedures for the authentication, assignment of time slots available to the node, releasing assigned slots and slots assignment conflict detection.

• Distributed measurement system with data transmission secured using XXTEA algorithm

  Publikacja

  • G. Lentka
  • S. Tyborczyk

  - Przegląd Elektrotechniczny - Rok 2016

  The paper deals with wireless data transmission security in the distributed measurement and control system. An overview of cryptographic algorithms was presented paying special attention to the algorithm dedicated to units with low processing power, which is important due to minimization of energy consumption. Measurement modules equipped with simple microcontrollers send data wirelessly to the central unit. The transmission was...

  Pełny tekst do pobrania w portalu

• On Design Optimization of Miniaturized Microscrip Dual-Band Rat-Race Coupler with Enhanced Bandwidth

  Publikacja

  • A. Bekasiewicz
  • S. Kozieł
  • W. Zieniutycz

  - Rok 2016

  In the paper, a novel topology of a miniaturized wideband dual-band rat-race coupler has been presented. Small size of the circuit has been obtained by meandering transmission lines of the conventional circuit. At the same time, the number of independent geometry parameters has been increased in order to secure sufficient circuit flexibility in the context of its design optimization for dual-band operation. Optimum dimensions of...

• Research on Quality Requirements of Data Transmission Services in RSMAD

  Publikacja

  • M. Gajewska
  • S. Gajewski
  • M. Sokół
  • L. Staszkiewicz
  • M. Brewka

  - Archives of Transport System Telematics - Rok 2011

  The paper presents a results and analysis of research of the quality of service requirements (defined by the QoS attributes) for imaging data transmission services using Radio System for Monitoring and Acquisition of Data from Traffic Enforcement Cameras (in short RSMAD). The paper also presents and discusses results of test on the impact of the size of photos from traffic enforcement cameras on the average transmission time. These...

• Simulation of Direct-Sequence Spread Spectrum Data Transmission System for Reliable Underwater Acoustic Communications

  Publikacja

  • I. Kochańska
  • J. Schmidt

  - Vibrations in Physical Systems - Rok 2019

  Underwater acoustic communication (UAC) system designers tend to transmit as much information as possible, per unit of time, at as low as possible error rate. It is a particularly difficult task in a shallow underwater channel in which the signal suffers from strong time dispersion due to multipath propagation and refraction phenomena. The direct-sequence spread spectrum technique (DSSS) applied successfully in the latest standards...

  Pełny tekst do pobrania w portalu

• A structure and design optimization of novel compact microscrip dual-band rat-race coupler with enhanced bandwidth

  Publikacja

  • A. Bekasiewicz
  • S. Kozieł
  • W. Zieniutycz

  - MICROWAVE AND OPTICAL TECHNOLOGY LETTERS - Rok 2016

  In the letter, a topology of a novel compact wideband dual-band rat-race coupler has been presented along with its computationally efficient design optimization procedure. Reduction of the circuit size has been achieved by meandering transmission lines of the conventional circuit. At the same time, the number of independent geometry parameters has been increased so as to secure sufficient flexibility of the circuit, necessary in...

  Pełny tekst do pobrania w serwisie zewnętrznym

• Application of OFDM technique to underwater acoustic data transmission

  Publikacja

  • I. Kochańska
  • H. Lasota

  - HYDROACOUSTICS - Rok 2011

  Performances of underwater acoustic communication (UAC) digital systems are strongly related to specific transmission properties of the underwater channel. Depending on the characteristics of the channel, an architecture and modulation techniques are usually implemented that are known as reliable solutions for data transmission in difficult radio channels. The OFDM technique seems to be the most promising nowadays. The parameters...

  Pełny tekst do pobrania w portalu