scholarly journals Development and Experimentation of an Articulated Mechanical System using Internet

Mechanika ◽  
2018 ◽  
Vol 24 (4) ◽  
pp. 462-466
Author(s):  
F. Z. ZENDAOUI ◽  
M. O. MAHMOUDI ◽  
A. ZAATRI
Keyword(s):  
Local Area Network ◽  
Experimental System ◽  
Local Area ◽  
Control Site ◽  
Area Network ◽  
Remote Site ◽  
Local Site ◽  
Pick And Place ◽  
Manipulator Arm ◽  
Hostile Environments

Hostile environments such as nuclear sites are difficult for men to perform tasks safely. The objective of our work is to construct and test an experimental system of teleoperation oriented to the pick-and-place tasks, using Internet. Two PCs are used, one at the local site and the second at the remote site. The interconnection between these sites is based on the TCP/IP sockets. In the remote site; a webcam sends images manipulator arm through Internet to the control site where a human operator remotely monitors this robot in order to achieve pick-and-place tasks. The camera is horizontally and vertically adjustable. The robot and camera are both controlled remotely via the Internet. A human-centered design has been used to build up the graphical user interface. The task supervision is performed from a local site through an Internet interconnection TCP/IP protocol. The software is mainly written in Java while some low level functions are written with C. Some experiments were successfully realized in local area network, and remotely at a large distance via Internet. The obtained results encouraged us to test other control modes with our system as, mouse-click command, Image-Based Commands and Gesture commands. Therefore, the system can then be used and adapted for various industrial and medical applications. DOI: http://dx.doi.org/10.5755/j01.mech.24.4.19386

scholarly journals Multi-terminal Experimental System Based on Wireless Local Area Network

2020 ◽  
Vol 1550 ◽  
pp. 032078
Author(s):  
Kaigang Fan ◽  
Xin Chen ◽  
Biao Zhao ◽  
Jiale Wang ◽  
Wenbin Cui ◽  
...  
Keyword(s):  
Wireless Local Area Network ◽  
Local Area Network ◽  
Experimental System ◽  
Local Area ◽  
Area Network

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.

An evaluation of a surgical telepresence system for an intrahospital local area network

2005 ◽  
Vol 11 (8) ◽  
pp. 408-413 ◽  
Author(s):  
A Schneider ◽  
D Wilhelm ◽  
U Bohn ◽  
A Wichert ◽  
H Feussner
Keyword(s):  
Video Transmission ◽  
Local Area Network ◽  
Video Quality ◽  
Local Area ◽  
Area Network ◽  
Full Potential ◽  
Audiovisual Communication ◽  
Remote Site ◽  
Technical Evaluation ◽  
Human Failure

summary We evaluated a digital telepresence system in an operating theatre (OR) environment which enabled a consultant to join the surgical team from a remote site by audiovisual communication. The system is based on video transmission using a streaming technique, with a server and a client connected via a local area network (LAN). Two cameras can be remotely controlled: one camera is built into the OR lamp and a second, laparoscopic camera is mounted on a robotic arm. Another feature of the system is teledemonstration, which permits the remote consultant to demonstrate points of particular interest. We evaluated the system clinically in 237 cases. In 28 cases (12%), telepresence could not be established for various reasons, mainly human failure. In 42 cases (18%), the full potential of telepresence was used. Technical evaluation showed that a data rate of 2 Mbit/s provides sufficient audio and video quality, as well as reliable teledemonstration. The data transmission delay was acceptable for clinical purposes (video 0.92 s, audio 0.6s from OR to client, audio 0.7s from client to OR). The study showed that telepresence is a promising means of providing highly specialized expertise within the OR.

Experimental System For An OFDM-local Area Network

2005 ◽  
Author(s):  
P. Meissner ◽  
H. Bunning ◽  
M. Burmeister ◽  
T. Hermes ◽  
U. Hilbk ◽  
...  
Keyword(s):  
Local Area Network ◽  
Experimental System ◽  
Local Area ◽  
Area Network

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

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