The Design of STM32 Embedded Data Gathering Control System Based on GPRS Network

2014 ◽  
Vol 977 ◽  
pp. 326-329
Author(s):  
Shi Wei Lin
Keyword(s):  
Control System ◽  
Communication System ◽  
Data Center ◽  
Data Gathering ◽  
Data Communication ◽  
The Internet ◽  
Client Server ◽  
Network Transmission ◽  
Remote Data

In this paper, the remote data communication system based on GPRS composed of the data center and transmission terminal, which are connected through the Internet and GPRS network.. Taking the client/server model and the connection serve as a whole is to carry out network transmission.

A Control System in Satellite Navigation and Communication Terminal

2014 ◽  
Vol 513-517 ◽  
pp. 2888-2892
Author(s):  
Zheng Qun Hu ◽  
Guo Xiang Ai ◽  
Li Rong Zhang ◽  
Chao Hu
Keyword(s):  
Control System ◽  
Communication System ◽  
Satellite Communication ◽  
Data Communication ◽  
Satellite Navigation ◽  
Quality Data ◽  
Communication Interface ◽  
Voice Communication ◽  
Good Communication ◽  
Set Up

For the needs of a satellite navigation and communication system, we design and implement a terminal control system in the integration of navigation and communication system in this paper. The control system consists of CPU controller, GPS positioning module, smart finding and alignment satellite module, transmit/receive baseband, RF module, voice module and other functional modules, which has navigation and communication function. Satellite communication includes voice communication and data communication. The voice communication interface is operated conveniently, which using I/Q quadrature BPSK modulation to set up satellite links easily. It has a good communication quality. Data communication using the bidirectional answer mode to make success rate close to 100% in data upward to the communication center station, which is well to meet the needs in data upward.

scholarly journals LTE-U based Train to Train Communication System in CBTC: System Desin and Reliability Analysis

2020 ◽  
Vol 2020 ◽  
pp. 1-14
Author(s):  
Hao Liang ◽  
Hongli Zhao ◽  
Shuo Wang ◽  
Yong Zhang
Keyword(s):  
Control System ◽  
Communication System ◽  
Evaluation Method ◽  
Operating Cost ◽  
Data Communication ◽  
Stochastic Petri Nets ◽  
Critical Signal ◽  
Efficient Operation ◽  
Train Control ◽  
Train Control System

Communication-Based Train Control (CBTC) system is a critical signal system to ensure rail transit’s safe operation. Compared with the train-ground CBTC system, the train control system based on train-to-train (T2T) communication has the advantages of fast response speed, simple structure, and low operating cost. As the core part of the train control system based on T2T communication, the reliability of the data communication system (DCS) is of great significance to ensure the train’s safe and efficient operation. According to the T2T communication system requirements, this paper adopts Long-Term Evolution-Unlicensed (LTE-U) technology to design the DCS structure and establishes the reliability model of the communication system based on Deterministic and Stochastic Petri Nets (DSPN). Based on testing the real line’s communication performance parameters, the DSPN model is simulated and solved by π -tool, and the reliability index of the system is obtained. The research results show that the LTE-U-based T2T communication system designed in this paper meets the train control system’s needs for communication transmission. This paper’s reliability evaluation method can complete the reliability modeling of train control DCS based on T2T communication. The research in this paper will provide a strong practical and theoretical basis for the design and optimization of train control DCS based on T2T communication.

Empirical Evaluation of Blockchain Based Remote Data Communication System over Wireless Sensor Network (WSN)

2021 ◽  
Author(s):  
Abolfazl Mehbodniya ◽  
Prikshat Kumar Angra ◽  
V. Hindumathi ◽  
Satyendra Vishwakarma ◽  
P. Rajasekar ◽  
...  
Keyword(s):  
Wireless Sensor Network ◽  
Sensor Network ◽  
Communication System ◽  
Empirical Evaluation ◽  
Data Communication ◽  
Wireless Sensor ◽  
Remote Data

scholarly journals PENGUJIAN KINERJA JARINGAN SISTEM AKSES FILE BERBASIS CLIENT SERVER MENGGUNAKAN SAMBA SERVER

2016 ◽  
Vol 2 ◽  
pp. 129
Author(s):  
Anggraini Kusumaningrum
Keyword(s):  
Operating System ◽  
Operating Systems ◽  
Communication System ◽  
Transfer Rate ◽  
Computer Network ◽  
Data Communication ◽  
Network Access ◽  
File Size ◽  
Client Server ◽  
Access System

Data communication is the process of exchanging data between two or more devices through a transmission medium such as a cable. In order for the data communication can occur, the device must be connected to communicate with each other or be a part of a communication system consisting of hardware (hardware) and software (software). Samba server is a software bridge between the two operating systems that run within a computer network. Samba is able to share files with computers that use operating system linux, unix and windows with a peer to peer system. The time needed on the LAN network access system based on client file servers using Samba server with a minimum file size of 3MB and a maximum of 1GB for the download process is 04 minutes 54 seconds while the upload is 09 minutes 24 seconds. Speed transfer rate that is produced with a minimum file size of 3MB and a maximum of 1GB for the download process is 4.762Kbps and to upload is 1.896Kbps. On QoS testing conducted on 5 PCs, 10PC, 15pc and client 20PC result more and more PC client that accesses 1 file the success rate will be getting worse, it is because the bottleneck on the network.Kata Kunci : Network, client server, Samba Server

Design and Simulation of Smart Control System for Internet Traffic Distribution on Servers by Using Fuzzy Logic System

2018 ◽  
Vol 2 (1) ◽  
Author(s):  
Raid Daoud ◽  
Yaareb Al-Khashab
Keyword(s):  
Fuzzy Logic ◽  
Control System ◽  
Input Parameter ◽  
Traffic Density ◽  
The Internet ◽  
Linguistic Variables ◽  
Internet Service ◽  
Traffic Distribution ◽  
Smart Control ◽  
High Level

The internet service is provided by a given number of servers located in the main node of internet service provider (ISP). In some cases; the overload problem was occurred because a demand on a given website goes to very high level. In this paper, a fuzzy logic control (FLC) has proposed to distribute the load into the internet servers by a smart and flexible manner. Three effected parameters are tacked into account as input for FLC: link capacity which has three linguistic variables with Gaussian membership function (MF): (small, medium and big), traffic density with linguistic variables (low, normal and high) and channel latency with linguistic variables (empty, half and full); with one output which is the share server status (single, simple and share). The proposed work has been simulated by using MATLAB 2016a, by building a structure in the Fuzzy toolbox. The results were fixed by two manners: the graphical curves and the numerical tables, the surface response was smoothly changed and translates the well-fixed control system. The numerical results of the control system satisfy the idea of the smart rout for the incoming traffics from the users to internet servers. So, the response of the proposed system for the share of server ratio is 0.122, when the input parameter in the smallest levels; and the ratio is 0.879 when the input parameters are in highest level. The smart work and flexible use for the FLC is the main success solution for most of today systems control.

Pengembangan Sistem VOIP Menggunakan Server Issabel Versi 4.0 dan Tunnel EOIP pada OMNI Hospital Alam Sutera

2018 ◽  
Vol 18 (1) ◽  
pp. 13-20
Author(s):  
Elly Mufida ◽  
David Wardana Agus Rahayu
Keyword(s):  
Operating System ◽  
Open Source ◽  
End Of Life ◽  
Communication System ◽  
Communication Protocol ◽  
The Internet ◽  
Migration Process ◽  
Web Browser ◽  
Backup Path ◽  
E Mail

The VoIP communication system at OMNI Hospital Alam Sutera uses the Elastix 2.5 server with the Centos 5.11 operating system. Elastix 2.5 by the developer has been declared End of Life. The server security system is a serious concern considering that VoIP servers can be accessed from the internet. Iptables and fail2ban applications are applications that are used to limit and counteract those who try to attack the VoIP server. One application that can be used as an open source VoIP server is the Issabel Application version 4.0. The migration process from Elastix 2.5 application to Issabel 4.0 by backing up all configurations in the Elastix 2.5 application through a web browser including the configuration of endpoints, fax, e-mail, asterisk. After the backup file is downloaded then upload the backup file to the Issabel 4.0 application then run the migration process. Adding a backup path as a failover connection is needed because the VoIP communication protocol between the OMNI Hospitals Group still uses one path so that when there is a problem in the connection path, the communication protocol will stop. The tunnel EoIP is a protocol used as a backup path between the OMNI Hospitals Group site.

Systemic Hybridity in the Mediation of the American Presidential Campaign

2017 ◽  
Author(s):  
Andrew Chadwick
Keyword(s):  
Data Gathering ◽  
Real Space ◽  
Presidential Campaign ◽  
Newspaper Coverage ◽  
The Internet ◽  
Major Theme ◽  
Power Resources ◽  
Electoral Outcomes ◽  
Media System ◽  
Common Purpose

Chapter 7 continues the revisionist approach of chapter 6, but paints the 2008 U.S. presidential campaign on a broader canvas. Through a detailed analysis of key episodes in the mediation of the campaign, the chapter shows how the real-space spectacles of candidate appearances continue to generate the important television, radio, and newspaper coverage that remains so crucial for projecting the power of a candidate and conveying enthusiasm, movement, authenticity, and common purpose to both activists and nonactivists alike. The chapter discusses how these television-fuelled spectacles now also integrate with newer media logics of data-gathering, online fundraising, tracking, monitoring, and managed volunteerism. A major theme running through this chapter is the growing systemic integration of the internet and television in presidential campaigns. It also shows how the hybrid media system can shape electoral outcomes by providing new power resources for campaigns that can create and master the system's modalities.

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