scholarly journals Automatic assistance system for visual control of targets

2021 ◽  
Vol 2061 (1) ◽  
pp. 012076
Author(s):  
V V Tulchinskii ◽  
V I Tulchinskii ◽  
S I Kondratyev ◽  
A L Boran-Keshishian
Keyword(s):  
Information Processing ◽  
Local Area Network ◽  
Local Area ◽  
Information Support ◽  
Area Network ◽  
Camera System ◽  
Support Unit ◽  
Information Object ◽  
Decision Making Unit ◽  
Cognitive Information

Abstract The article discusses the possibility of creating a system for automating the process of searching and assessing the danger of targets using machine vision and existing ship systems. The technologies for processing images from the ship’s camera system are analyzed: object recognition by a ready-made convolutional neural retrained network, as well as object detection by SURF algorithms. The parameters of the danger of goals within the framework of the problem to be solved have been analyzed and developed, and a structural analysis has been elaborated. The functionality of the automatic operation of the system as a closed circuit has been considered. To achieve the technical result in the system as an integrated part of the ship’s equipment based on cognitive information processing, a composite information object from the ship’s sensors and control systems was introduced. It is decomposed into blocks in which the associated logical information processing takes place using basic modules consisting of adaptive cells-approximators as learning elements capable of independently processing information. The following units are included in the local area network: an information support unit (ISU), a decision making unit (DMU), a command-organizational unit (COU) with an operator’s workstation. The ISU is connected by a two-way communication output with aggregate LAN units, the other output is connected in series with a situation determination unit and the “model of the surrounding space” block. The survey was carried out on board a modern LNG gas carrier using ship systems.

Modelling and Simulation of the Operational and Information Processing Functions of a Computer-Integrated Manufacturing Cell

1995 ◽  
Vol 209 (4) ◽  
pp. 245-259 ◽  
Author(s):  
H Bartlett ◽  
R Wong
Keyword(s):  
Information Processing ◽  
Local Area Network ◽  
Local Area ◽  
Place Cell ◽  
Computer Integrated Manufacturing ◽  
Area Network ◽  
Complete Model ◽  
Integrated Manufacturing ◽  
Manufacturing Cell ◽  
Pick And Place

This paper investigates the information processing function of a computer-integrated manufacturing (CIM) system, which is usually neglected by engineers when they study the performance of a manufacturing system. The feasibility of developing a complete simulation model which would include both the operational and information processing functions is therefore considered. In order to achieve this, a typical pick-and-place manufacturing cell was considered in which 46 devices were connected to a local area network (LAN). Two independent simulation tools, SIMAN* and L-NET†, were used in order to develop the complete model. The model was evaluated and used to study the performance of the pick-and-place cell using different communication protocols such as the IEEE 802.3 carrier sense multiple access with collision detection (CSMA/CD), IEEE 802.4 token bus and the IEEE 802.5 token ring. Results presented in this paper show that with careful design and simulation it is possible to develop a complete model which includes both operational and informational processing functions. Although the example of the pick-and-place cell is relatively simple the technique adopted could be applied to any CIM system. Results have also shown that for the pick-and-place cell considered in this paper an IEEE 802.3 CSMA/CD protocol operating at 10 Mbps would guarantee access to the network within the shortest station processing time.

Design and Experiment of Underwater Monitoring System for Fish Domestication Equipment

2013 ◽  
Vol 419 ◽  
pp. 477-482
Author(s):  
Lei Zhang ◽  
Qing Song Hu ◽  
Shi Long Zhang ◽  
Shou Yu Zhang ◽  
Chun Xiang Bai
Keyword(s):  
Feedback Control ◽  
Monitoring System ◽  
Local Area Network ◽  
Effective Means ◽  
Local Area ◽  
Area Network ◽  
Communication Mode ◽  
Camera System ◽  
Sparus Macrocephalus ◽  
Underwater Camera

The design of underwater monitoring system is an important component of fish domestication equipment for ocean ranching. In order to achieve the fish domestication effect so that to conduct feedback control of fish domestication device, this paper designs a wireless underwater camera monitoring system. The system includes local area network and GPRS network communication mode. The results of the underwater sealing experiment and the preliminary underwater camera test show the feasibility of the monitoring system. The effect monitored in Sparus macrocephalus domestication experiment in Xiangshan ocean area suggests that this camera system can not only meet the working requirements, but also be stable and reliable, which provides an effective means of monitoring for fish domestication on ocean ranching.

Strathnet—a local area network

1981 ◽  
Vol 1 (1) ◽  
pp. 21 ◽  
Author(s):  
David Hutchison ◽  
Doug Shepherd
Keyword(s):  
Local Area Network ◽  
Local Area ◽  
Area Network

A Local Area Network for Medical Research; Planning, Realization and Experience

1991 ◽  
Vol 30 (01) ◽  
pp. 53-64 ◽  
Author(s):  
R. Schosser ◽  
C. Weiss ◽  
K. Messmer
Keyword(s):  
Medical Research ◽  
Word Processing ◽  
Local Area Network ◽  
Local Area ◽  
Area Network ◽  
Test Installation ◽  
Cost Performance ◽  
The Public ◽  
On Line ◽  
The University

This report focusses on the planning and realization of an interdisciplinary local area network (LAN) for medical research at the University of Heidelberg. After a detailed requirements analysis, several networks were evaluated by means of a test installation, and a cost-performance analysis was carried out. At present, the LAN connects 45 (IBM-compatible) PCs, several heterogeneous mainframes (IBM, DEC and Siemens) and provides access to the public X.25 network and to wide-area networks for research (EARN, BITNET). The network supports application software that is frequently needed in medical research (word processing, statistics, graphics, literature databases and services, etc.). Compliance with existing “official” (e.g., IEEE 802.3) and “de facto” standards (e.g., PostScript) was considered to be extremely important for the selection of both hardware and software. Customized programs were developed to improve access control, user interface and on-line help. Wide acceptance of the LAN was achieved through extensive education and maintenance facilities, e.g., teaching courses, customized manuals and a hotline service. Since requirements of clinical routine differ substantially from medical research needs, two separate networks (with a gateway in between) are proposed as a solution to optimally satisfy the users’ demands.

Link-Level Simulator for Wireless local Area Network

2018 ◽  
Vol 6 (7) ◽  
pp. 314
Author(s):  
Chaithra. H. U ◽  
Vani H.R
Keyword(s):  
Wireless Local Area Network ◽  
Local Area Network ◽  
Local Area Networks ◽  
Local Area ◽  
Long Term Evolution ◽  
Wireless Local Area Networks ◽  
Area Network ◽  
Network Simulator ◽  
Term Evolution

Now a days in Wireless Local Area Networks (WLANs) used in different fields because its well-suited simulator and higher flexibility. The concept of WLAN  with  advanced 5th Generation technologies, related to a Internet-of-Thing (IOT). In this project, representing the Network Simulator (NS-2) used linked-level simulators for Wireless Local Area Networks and still utilized IEEE 802.11g/n/ac with advanced IEEE 802.11ah/af technology. Realization of the whole Wireless Local Area Networking linked-level simulators inspired by the recognized Vienna Long Term Evolution- simulators. As a outcome, this is achieved to link together that simulator to detailed performances of Wireless Local Area Networking with Long Term Evolution, operated in the similar RF bands. From the advanced 5th Generation support cellular networking, such explore is main because different coexistences scenario can arise linking wireless communicating system to the ISM and UHF bands.

PERANCANGAN ANTENA MIKROSTRIPRECTANGULAR

Jurnal Teknik ◽  
2018 ◽  
Vol 7 (1) ◽  
Author(s):  
Heru Abrianto
Keyword(s):  
Dielectric Constant ◽  
Patch Antenna ◽  
Wireless Lan ◽  
Microstrip Antenna ◽  
Wireless Local Area Network ◽  
Local Area Network ◽  
Local Area ◽  
Area Network ◽  
Dual Polarization ◽  
Feeding Technique

Microstrip antenna which designed with dual feeding at 2.4 GHz and 5.8 GHz can meet WLAN (Wireless Local Area Network) application.Antenna fabrication use PCB FR4 double layer with thickness 1.6 mm and dielectric constant value 4.4. The length of patch antenna according to calculation 28.63 mm, but to get needed parameter length of patch should be optimized to 53 mm. After examination, this antenna has VSWR 1.212 at 2.42 GHz and 1.502 at 5.8 GHz, RL -13.94 dB at 2.42 GHz and -20.357 dB at 5.8 GHz, gain of antenna 6.16 dB at 2.42 GHz and 6.91 dB at 5.8 GHz, the radiation pattern is bidirectional. Keywords : microstrip antenna, wireless LAN, dual polarization, single feeding technique

IEEE 802.11 Tutorial

2018 ◽  
Author(s):  
Kiramat
Keyword(s):  
Access Control ◽  
Ieee 802.11 ◽  
Wireless Local Area Network ◽  
Local Area Network ◽  
Local Area ◽  
Physical Layer ◽  
Media Access Control ◽  
Area Network ◽  
Media Access ◽  
Computer Communications

IEEE 802.11 is a set of media access control (MAC) and physical layer (PHY) specifications for implementing wireless local area network (WLAN) computer communications. Maintained by the Institute of Electrical and Electronics Engineers (IEEE) LAN/MAN Standards Committee (IEEE 802). This document highlights the main features of IEEE 802.11n variant such as MIMO, frame aggregation and beamforming along with the problems in this variant and their solutions

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