scholarly journals Internet of Things-Enabled Crop Growth Monitoring System for Smart Agriculture

2021 ◽  
Vol 12 (2) ◽  
pp. 30-48
Author(s):  
Hongyu Hu ◽  
Zheng Chen ◽  
Peng Wen Wu
Keyword(s):  
Internet Of Things ◽  
Real Time ◽  
Data Storage ◽  
Local Area Network ◽  
Crop Growth ◽  
Growth Monitoring ◽  
Area Network ◽  
Development Environment ◽  
Growth Environment ◽  
Monitoring Center

In order to solve the problems of high cost and difficult management of traditional agricultural planting, internet of things (IoT) technology was applied to realize real-time detection and intelligent management of crop growth and remote control of equipment, and change the traditional agricultural planting mode. The research results show that in MyEclipse development environment, using B/S (Browser/Server) architecture, Java and JavaScript language to design, Tomcat built server to publish information and complete the function of data storage and query, users can access the monitoring center in the local area network (LAN). When the detected data exceed the set threshold range, the control instructions issued by the monitoring center are transmitted to the main control chip through ethernet, and then the switching operation of the relay is controlled. The real-time monitoring of crop growth environment can be realized.

scholarly journals Pengembangan Sistem Monitoring Inkubator Bayi Prematur Secara Real Time Menggunakan Android

2020 ◽  
Vol 10 (2) ◽  
pp. 1-8
Author(s):  
Kiki Anggara ◽  
Faisal Hadi ◽  
Junas Haidi
Keyword(s):  
Internet Of Things ◽  
Open Source ◽  
Real Time ◽  
Local Area Network ◽  
Local Area ◽  
Area Network

ABSTRAKBagi orang tua masalah kesehatan buah hati merupakan suatu hal yang sangat penting. Terlebih lagi bagi orang tua yang kurang beruntung melahirkan bayi dalam keadaan kurang sehat atau prematur menurut dokter, sehingga diperlukan perawatan menggunakan inkubator. Inkubator bayi adalah sebuah wadah tertutup yang kehangatan lingkungannya dapat diatur dengan cara memanaskan udara dengan suhu tertentu, yang berfungsi untuk menghangatkan bayi. Thingspeak adalah platform open source Internet of Things (IoT) aplikasi dan API untuk menyimpan dan mengambil data dari hal menggunakan protokol HTTP melalui Internet atau melalui Local Area Network. ThingSpeak memungkinkan pembuatan aplikasi sensor logging, aplikasi lokasi pelacakan, dan jaringan sosial. Berdasarkan perancangan yang dilakukan untuk penerapan sistem monitoring inkubator bayi prematur secara real time dengan menggunakan android tidak berjalan sesuai dengan yang diinginkan, karena memiliki delay waktu sebesar 10-15 detik. Pengaplikasian android sebagai sistem monitoring jarak jauh menggunakan kamera dilakukan dengan aplikasi GoPLus Cam. Aplikasi GoPlus Cam android dan kamera memiliki jarak koneksi maksimum yaitu jarak 15 m. Pengaplikasian android sebagai tampilan output suhu, detak jantung dan berat badan ditampilkan menggunakan aplikasi thingshow. Aplikasi thingshow menampilkan pembacaan data suhu dan detak jantung dalam bentuk grafik sedangkan pembacaan berat badan ditampilkan dalam bentuk angka dan berhasil ditampilkan pada android.Kata Kunci : Monitoring Inkubator Bayi, Thingspeak, NodeMCU ESP8266

Perancangan Sistem Backup Data Menggunakan File Transfer Protocol Pada Jaringan Local Area Network Di SMP Negeri 6 Pekanbaru

2020 ◽  
Author(s):  
Sasqia Ismi Aulia ◽  
Keyword(s):  
Data Storage ◽  
Local Area Network ◽  
Local Area ◽  
Area Network ◽  
File Transfer ◽  
Network Connection ◽  
Teachers And Students ◽  
Network Operating Systems ◽  
Selection Of ◽  
Server Computer

This study aims to design a LAN network for data backup systems that are in accordance with certain aspects such as the selection of network design, network hardware, network transmission media, network connection devices, and network operating systems. Data is the most important thing for everyone, data can usually be reused even though it has not been used for some time, and therefore data storage is a serious problem that must be considered. Data on the server computer is very important to be maintained so that a backup process is needed on that data to another computer that is used as a backup in the event of damage to the hardware and software of the server computer. FTP is one of the solutions to the problems faced above,where FTP can be used to process the download and upload between the server and client computers. This design uses the Autobot system. The expected benefit in designing this LAN is that the existing network at SMP Negeri 6 Pekanbaru is not only used by employees and employees but can be used and enjoyed by teachers and students to access the internet anywhere as long as it is still within the scope of the SMP Negeri 6 area Pekanbaru.

A Cast Study to Investigate an Affordable Cloud-based Server for Worksharing to Benefit Academia & Small Businesses

2021 ◽  
Vol 9 (04) ◽  
pp. 39-46
Author(s):  
Prof. Swarnali Ghosh Dastider ◽  
Luis Rosa
Keyword(s):  
Real Time ◽  
Small Businesses ◽  
Local Area Network ◽  
Cloud Services ◽  
Information Modeling ◽  
Area Network ◽  
Wide Area Network ◽  
Digital Models ◽  
Virtual Design ◽  
Design And Construction

Real-time collaboration of multiple digital models is vital for successful construction projects using Virtual Design and Construction (VDC) or Building Information Modeling (BIM). Real-time collaboration allows users to workshare within a multidisciplinary team to co-author multiple smart digital models for better efficiency. This can be done in two ways, either using a physical server (Local Area Network/LAN server) or cloud-based server (Wide Area Network/WAN server). Such cloud-based servers are A360, C4R, Collaboration for Revit, or BIM360Design collaborate, etc. However, above-mentioned cloud services come at a significant price, making it challenging for academia and small businesses to perform real-time collaboration using BIM/VDC models. To find an affordable alternative, an attempt was made as part of the Virtual Design and Construction (VDC) course offered by the Construction Science and Management Department (CSM). For this case study, a popular and free (Google) cloud server was tested as a WAN server to host four multidisciplinary collaborative VDC central models for five users across five different geographic locations and time zones. The study rendered successful results to establish a real-time collaborative workshare environment; hence, can significantly benefit academia and small business.

Development and Evaluation of Local Area Network Based Archiving System

2021 ◽  
Vol 5 (2) ◽  
pp. 286-296
Author(s):  
Reymon M Santiañez ◽  
Benedict M Sollano
Keyword(s):  
Data Storage ◽  
Local Area Network ◽  
Storage System ◽  
Local Area ◽  
Information Storage ◽  
Area Network ◽  
Efficient Operation ◽  
File Storage ◽  
Electronic File ◽  
Work Cycle

The goal of this study was to create the Local Area Network Based Archiving System, a cross-platform development system for electronic information storage, security, preservation, and retention. The system incorporates capabilities such as data storage for long-term preservation and retrieval, file searching and retrieval, security features such as user account information system and account access privilege levels, and an email-like messaging system. The researchers developed the Local Area Network Based Archiving System using the Agile Software Development Methodology to keep up with the stakeholders' ever-changing needs. After each iteration of the work cycle, this methodology employs a process of frequent feedback. Features are added or refined in each iteration to ensure that the study meets its goals and expectations. The developed system received an overall average weighted mean of 4.53 in the evaluation summary, which is considered excellent. The strongest point of the system, according to the respondents' responses, was its content, which received the highest average mean among the five major categories in the system evaluation. The system's mobile responsiveness was a huge plus, as it considerably aided accessibility. The system should also be deployed, according to the respondents, because it will provide a powerful answer to the ongoing challenges with storing, managing, securing, and retrieving electronic files. As a result, the researchers concluded that a Local Area Network Based Archiving System is required for the efficient operation of an electronic  file storage system. Having centralized electronic file storage and retrieval system not only saves time and money in the long run but also allows for disaster recovery and business continuity.

scholarly journals PENINGKATAN LAYANAN INSTANSI PENDIDIKAN MENGGUNAKAN BACKUP DATA DALAM UPAYA MEMPERMUDAH AKSES INFORMASI

2019 ◽  
Vol 7 (01) ◽  
pp. 31
Author(s):  
Martanto Martanto
Keyword(s):  
Data Storage ◽  
Local Area Network ◽  
Information Access ◽  
Local Area ◽  
Educational Institutions ◽  
Area Network ◽  
Data Backup ◽  
Storage Media ◽  
Reliable Performance ◽  
Using Data

Data is a very important need for an Education institute, one of them is SMK Persatuan Ummat Islam. Because data is an important asset that must be protected and protected by its security. For this reason, a media is needed that can store data that are important and valuable assets so that they are guaranteed security and maintenance. Data processing is connected to the local area network (LAN) of SMK Persatuan Ummat Islam. Storage media with good and reliable performance will certainly greatly assist agencies for data storage in improving information access services at educational institutions. It is very important to secure data from the server so that it is necessary to backup the data by adding software or hardware as a backup server computer. To be guaranteed the data backup process periodically requires an application that can backup data automatically from the server or client. NAS4Free is a server with a Linux-based operating system that is very specialized to handle data storage centrally, so that it becomes one of the very good solutions to be implemented, because by using one media as a center of data storage can reduce the risk of data loss or data damage. And can restore (restore) data if the computer is damaged. So that the hope can facilitate the work of educators and education staff in improving services in educational institutions using data backup in ensuring the security and maintenance of data which are important and valuable assets

The System Design of Wireless Video Transmission Based on PTZ Control

2014 ◽  
Vol 1006-1007 ◽  
pp. 723-726
Author(s):  
Shi Yu Huan
Keyword(s):  
Real Time ◽  
Video Transmission ◽  
Local Area Network ◽  
High Reliability ◽  
Rapid Expansion ◽  
Area Network ◽  
Wireless Video ◽  
The Real ◽  
Wireless Video Transmission ◽  
Internet Of Things Technology

Along with the rapid expansion of automation, communication, the Internet of things technology, and video image processing technology, the wireless video transmission technology based on the embedded system is becoming increasingly more mature. In this paper, what has been designed and managed to be perfectly applied is a transmission system of high reliability and convenience which based on the technique of pan-tilt control and integrated the technology of wireless LAN, embedded technology, video transmission technology. The paper briefly introduces the research background of the system, current research status at home and abroad, the development trend and the significance of this design project. What is more is that the article goes through the hardware and software design of the pan-tilt control circuit and software of real-time video transmission in a detailed way. The biggest is that this project has made the real-time video transmission in the local area network came true and you can check the real-time dynamic video images by browsing the web through you mobile phone.

scholarly journals Underground Coal Mine Fingerprint Positioning Based on the MA-VAP Method

Sensors ◽  
2020 ◽  
Vol 20 (18) ◽  
pp. 5401
Author(s):  
Mingzhi Song ◽  
Jiansheng Qian
Keyword(s):  
Real Time ◽  
Coal Mine ◽  
Wireless Local Area Network ◽  
Local Area Network ◽  
Access Point ◽  
Cumulative Distribution ◽  
Kernel Principal Component Analysis ◽  
Area Network ◽  
Positioning Accuracy ◽  
Access Points

The access points (APs) in a coal mine wireless local area network (WLAN) are generally sparsely distributed. It can, with difficulty, satisfy the basic requirements of the fingerprint positioning based on Wi-Fi. Currently, the effectiveness of positioning is ensured by deploying more APs in an underground tunnel, which significantly increases system cost. This problem can be solved by using the Virtual Access Point (VAP) method that introduces virtual access points (VAPs), which can be virtually arranged in any part of the positioning area without installing actual access points. The drawback of the VAP method is that the generated received signal strength (RSS) value of a VAP is calculated based on the mapping of RSS value from only one corresponding access point (AP). This drawback does not consider the correlation between different AP signals and the generated RSS value of a VAP, which makes the modeling of fingerprint samples and real-time RSS collection incomplete. This study proposed a Multi-Association Virtual Access Point (MA-VAP) method takes into account the influence of multi-association. The multi-association coefficient is calculated based on the correlation between the RSS values of a VAP and multiple access points (APs). Then, the RSS value generated by a VAP is calculated using the multi-association function. The real-time collected RSS values from multiple APs related to this VAP are the input of the multi-association function. The influence of the number of VAPs and their arrangement on positioning accuracy is also analyzed. The experimental positioning results show that the proposed MA-VAP method achieves better positioning performance than the VAP method for the same VAP arrangement. Combined with the Weight K-Nearest Neighbors (WKNN) algorithm and Kernel Principal Component Analysis (KPCA) algorithm, the positioning error of the MA-VAP method of the error distance cumulative distribution function (CDF) at 90% is 4.5 m (with WKNN) and 3.5 m (with KPCA) in the environment with non-line-of-sight (NLOS) interference, and the positioning accuracy is improved by 10% (with WKNN) and 22.2% (with KPCA) compared with the VAP method. The MA-VAP method not only effectively solves the fingerprint positioning problem when APs are sparse deployed, but also improves the positioning accuracy.

LXI Precision Time Protocol Applied Research

2013 ◽  
Vol 330 ◽  
pp. 561-564 ◽  
Author(s):  
Ming Li ◽  
Chun Ping Wang ◽  
Zhi Qiang Wang
Keyword(s):  
Real Time ◽  
Applied Research ◽  
Time Synchronization ◽  
Local Area Network ◽  
Local Area ◽  
Test System ◽  
Area Network ◽  
Automatic Test System ◽  
Precision Time ◽  
Precise Time

In order to meet the real-time demands of some equipment networked test, the time synchronization techniques of ATS based traditional instrument buses are compared with the techniques of LXI ATS. Accordingly，the necessity of LXI ATS time synchronization technique study is put forward. The sorts of time synchronization techniques based on Local Area Network are analyzed. In addition, some methods which could improve the level of LXI data real-time communications are presented. Afterwards, technique realizations of PTP are studied in detail. Local Area Network techniques and IEEE 1588 Precise Time Protocol are adopted in the LXI Automatic Test System which designed in the paper, and the level of time synchronization precision in the system is improved.

scholarly journals Real-Time Video Latency Measurement between a Robot and Its Remote Control Station: Causes and Mitigation

2018 ◽  
Vol 2018 ◽  
pp. 1-19 ◽  
Author(s):  
Admir Kaknjo ◽  
Muzaffar Rao ◽  
Edin Omerdic ◽  
Luke Robinson ◽  
Daniel Toal ◽  
...  
Keyword(s):  
Real Time ◽  
Local Area Network ◽  
Clock Synchronization ◽  
Video Stream ◽  
The Internet ◽  
Normal System ◽  
System Control ◽  
Area Network ◽  
Remotely Operated Vehicle ◽  
Ip Camera

This work presents a detailed study, characterization, and measurement of video latency in a real-time video streaming application. The target application consists of an automatic control system in the form of a control station and the mini Remotely Operated Vehicle (ROV) equipped with a camera, which is controllable over local area network (LAN) and the Internet. Control signal transmission and feedback measurements to the operator usually impose real-time constraints on the network channel. Similarly, the video stream, which is required for the normal system control and maneuvering, imposes further strict requirements on the network in terms of bandwidth and latency. Based on these requirements, controlling the system in real time through a standard Internet connection is a challenging task. The measurement of important network parameters like availability, bandwidth, and latency has become mandatory for remotely controlling the system in real time. It is necessary to establish a methodology for the measurement of video and network latency to improve the real-time controllability and safety of the system as such measurement is not possible using existing solutions due to the following reasons: insufficient accuracy, relying on the Internet resources such as generic Network Time Protocol (NTP) servers, inability to obtain one-way delay measurement, and many solutions only having support for web cameras. Here, an efficient, reliable, and cost-effective methodology for the measurement of latency of a video stream over a LAN and the Internet is proposed. A dedicated stratum-1 NTP server is used and the necessary software needed for acquiring and measuring the latency of a video stream from a generic IP camera as well as integration into the existing ROV control software was developed. Here, by using the software and dedicated clock synchronization equipment (NTP server), it was found that normal video latencies in a LAN were in the range of 488ms – 850ms, while latencies over the Internet were measured to be in the range of 558ms – 1211ms. It is important to note that the values were obtained by using a generic (off-the-shelf) IP camera and they represent the actual latencies which might be experienced during control over long range and across international territory borders.

Performance Evaluation of Hybrid Technology Networking for Real-Time Monitoring in Freight Railroad Operations

2013 ◽  
Author(s):  
Pradhumna Lal Shrestha ◽  
Michael Hempel ◽  
Sushanta Rakshit ◽  
Hamid Sharif ◽  
John Punwani ◽  
...  
Keyword(s):  
Real Time ◽  
Ieee 802.15.4 ◽  
Wireless Local Area Network ◽  
Local Area Network ◽  
Linear Chain ◽  
Area Network ◽  
Real Time Monitoring ◽  
Communication Range ◽  
Hybrid Technology ◽  
Cluster Communication

Traditional Wireless Sensor Network (WSN) solutions have been deemed insufficient to address the requirements of freight railroad companies to implement real-time monitoring and control of their trains, tracks and wayside equipment. With only ZigBee-based elements, the transmission capabilities of WSN devices are limited in terms of coverage range and throughput. This leads to severe delay and congestion in the network, particularly in railroad scenarios that usually require the nodes to be arranged in linear chain-like topology. In such a multi-hop topology to communicate from one end of a train to the locomotive — and due to ZigBee’s limited communication range — data needs to be transmitted using a very high number of hops and thus generates long delays and congestion problems. To overcome this drawback, we have proposed a heterogeneous multi-hop networking approach called “Hybrid Technology Networking” (HTN). In HTN we combined Wireless Local Area Network (WLAN) technologies like WiFi, which provide improved communication range and higher data rates, with low-power communication technologies like ZigBee. This significantly reduces the number of hops required to deliver data across the network and hence solves the issues of delay and congestion, while also achieving superior enery efficiency and network lifetime. The sensor nodes are logically divided into clusters and each cluster has a WiFi “gateway”. All intra-cluster communication is achieved via IEEE 802.15.4 and ZigBee protocols, while all inter-cluster communication utilizes WiFi protocol standards. To implement our proposed technology in railroad networks, we are designing hardware prototypes and simulation models to evaluate the functionality and performance of our HTN solution, which is designed around a dual network stack design governed by the HTN protocol. This ensures full compliance with IEEE and industry communication protocols for interoperability. Since no simulation tools that seamlessly combine both WSN and WLAN technologies in a single module exist, we wrote our own simulation environment using OPNET. In this paper, we have provided information of implementing the HTN protocol in OPNET and the simulation results for different scenarios relevant to railroad operations. These results will demonstrate the efficacy of our proposed system as well as provide the baseline data for testing the hardware devices in live networks. Under simulated traffic and channel conditions and device configurations, we observed a decrease of 77.27% in end-to-end delay and an increase of 69.70% in received data volume when using HTN compared to ZigBee-only multi-hop networks, simulated over 14 railcars in railroad-relevant scenarios.

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