scholarly journals An Effective Edge-Assisted Data Collection Approach for Critical Events in the SDWSN-Based Agricultural Internet of Things

Electronics ◽  
2020 ◽  
Vol 9 (6) ◽  
pp. 907
Author(s):  
Xiaomin Li ◽  
Zhiyu Ma ◽  
Jianhua Zheng ◽  
Yongxin Liu ◽  
Lixue Zhu ◽  
...  
Keyword(s):  
Data Collection ◽  
Wireless Sensor ◽  
Critical Events ◽  
Data Types ◽  
Average Value ◽  
Redundant Data ◽  
Communication Time ◽  
Collection Data ◽  
Smart Agriculture ◽  
Data Collection Approach

In the traditional agricultural wireless sensor networks (WSNs), there is a large amount of redundant data and high latency on critical events (CEs) for data collection systems, which increases the time and energy consumption. In order to overcome these problems, an effective edge computing (EC) enabled data collection approach for CE in smart agriculture is proposed. First, the key features data types (KFDTs) are extracted from the historical dataset to keep the main information on CEs. Next, the KFDTs are selected as the collection data type of the software-defined wireless sensor network (SDWSN). Then, the event types are decided by searching the minimum average variance between the sensing data of active nodes and the average value of the key feature data obtained by EC. Furthermore, the sensing nodes are driven to sense the event-related data with a consideration of latency constraints by the SDWSN servers. A real-world testbed was set up in a smart greenhouse for experimental verification of the proposed approach. The results showed that the proposed approach could reduce the number of needed sensors, sensing time, collection data volume, communication time, and provide the low latency agricultural data collection system. Thus, the proposed approach can improve the efficiency of CE sensing in smart agriculture.

scholarly journals Wireless Sensor Networks Scheduling Algorithm Based on the Probability of Monitoring

2012 ◽  
Vol 4 ◽  
pp. 32-37
Author(s):  
Jin Song Chen
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Data Collection ◽  
Scheduling Algorithm ◽  
Wireless Sensor ◽  
Network Data ◽  
Sleep Scheduling ◽  
Node Scheduling ◽  
Collection Data ◽  
Perceived Probability

This paper introduces the basics of wireless sensor networks, focusing on the concept of sensor network data collection, data collection mechanisms, data collection in-network data aggregation, data collection and data collection applications Research. This paper presents the data collection in WSN node scheduling concept, analyzed the two data collection in WSN scheduling mechanism, which is based on data collection interval node scheduling mechanism and turn the data based on perceived probability of node sleep scheduling mechanism.

Secure Data Aggregation Research for Wireless Sensor Network

2013 ◽  
Vol 341-342 ◽  
pp. 1205-1209
Author(s):  
Li Qiang Liu ◽  
Yue Bin Wang ◽  
Quan Feng Yan
Keyword(s):  
Data Aggregation ◽  
Security Analysis ◽  
Implementation Process ◽  
Wireless Sensor ◽  
Session Key ◽  
Redundant Data ◽  
Secure Data ◽  
Collection Data ◽  
Secure Data Aggregation ◽  
Specific Implementation

Wireless sensor networks are often deployed in open or even hostile environment, its security problem is very prominent, Data aggregation is easily to be attacked for security during the specific implementation process. In order to reduce the transmission of redundant data and enhance security, this article proposed a secure data aggregation and authentication scheme, .data was gathered according to the mode code, collection data was transmitted in encrypted form which will be selected nodes, ensured the confidentiality of the data; A session key was generated and delaied aggregation and authentication by using counter, ensured the integrity , authenticity and freshness of data during the transmission .The security analysis showed that the program had higher security which resisted the attack initiativly, node compromise attack and select forwarding attack and other malicious behaviors.

The Research of Wireless Monitoring Technology Used in Jinshan Lake

2013 ◽  
Vol 838-841 ◽  
pp. 3291-3295
Author(s):  
Chun Du Wu ◽  
Da Wei Jiang ◽  
Qing Jie Xie ◽  
Han Xiang Chen ◽  
Zhi Gang Chen ◽  
...  
Keyword(s):  
Water Quality ◽  
Wireless Sensor Network ◽  
Data Collection ◽  
Water Quality Monitoring ◽  
Wireless Transmission ◽  
Quality Monitoring ◽  
Wireless Sensor ◽  
Wireless Monitoring ◽  
Transmission Data ◽  
Collection Data

A wireless monitoring system based on ZigBee has been designed to improve the efficiency of the water quality monitoring for Jinshan Lake. The system controls the monitoring facilities via the wireless sensor network for data collection and transfers the data to controlling center where the data will be memorized to the database via wireless transmission. The system consists of data remote collection, data wireless transmission, data memorizing and warning for pollution over-standard.

scholarly journals KOREOGRAFI TARI PIRIANG BAKENCAK DI SANGGAR TARI TUAH SAKATO KECAMATAN PAUAH KOTA PADANG

2019 ◽  
Vol 8 (2) ◽  
pp. 48
Author(s):  
Rafi Rafi ◽  
Herlinda Mansyur
Keyword(s):  
Qualitative Research ◽  
Data Collection ◽  
Design Process ◽  
Secondary Data ◽  
Primary Data ◽  
Process Equipment ◽  
Data Types ◽  
Data Presentation ◽  
Library Studies ◽  
Collection Data

Abstract This article aims to reveal and describe the choreography of Piriang Bakencak dance at Sanggar Tuah Sakato in Kecamatan Pauh Kota Padang. This type of research is qualitative research using descriptive methods. This research instrument is self-research and assisted by supporting instruments such as stationery and cameras. Data types use primary data and secondary data. Data collection techniques are conducted by way of library studies, observations, interviews and documentation. The steps for analyzing data are data collection, data reduction, data presentation and withdrawal of conclusions. The results showed that Piriang Bakencak dance was a group-shaped creation that used the composition of the group, and was directed by a lift in the Koto Anau tradition. This Bakencak dish dance is a development of tradition with a choreography approach. In Piriang Bakencak dance There are elements of dance composition consisting of theme, motion, top design, floor design, dramatic design, music design, process, equipment and choreography group. It was concluded that Piriang Bakencak dance was directed by planning choreography by the fact. Because Piriang Bakencak dance in the start of an idea that is present from the tradition, and was directed in a form of a clear, then directed again with more new movements. Keywords:    choreography, Piriang Bakencak Dance, Sakato Classes Workshops Dance

scholarly journals Edge Computing-Enabled Wireless Sensor Networks for Multiple Data Collection Tasks in Smart Agriculture

2020 ◽  
Vol 2020 ◽  
pp. 1-9
Author(s):  
Xiaomin Li ◽  
Lixue Zhu ◽  
Xuan Chu ◽  
Han Fu
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Data Collection ◽  
Edge Computing ◽  
Wireless Sensor ◽  
Quality Of Data ◽  
Traditional Methods ◽  
Multiple Data ◽  
Smart Agriculture

At present, precision agriculture and smart agriculture are the hot topics, which are based on the efficient data collection by using wireless sensor networks (WSNs). However, agricultural WSNs are still facing many challenges such as multitasks, data quality, and latency. In this paper, we propose an efficient solution for multiple data collection tasks exploiting edge computing-enabled wireless sensor networks in smart agriculture. First, a novel data collection framework is presented by merging WSN and edge computing. Second, the data collection process is modeled, including a plurality of sensors and tasks. Next, according to each specific task and correlation between task and sensors, on the edge computing server, a double selecting strategy is established to determine the best node and sensor network that fulfills quality of data and data collection time constraints of tasks. Furthermore, a data collection algorithm is designed, based on set values for quality of data. Finally, a simulation environment is constructed where the proposed strategy is applied, and results are analyzed and compared to the traditional methods. According to the comparison results, the proposal outperforms the traditional methods in metrics.

scholarly journals Model Pembelajaran Kooperatif Tipe Numbered Head Together sebagai Upaya Meningkatkan Prestasi Belajar Prakarya

2021 ◽  
Vol 30 (3) ◽  
pp. 481
Author(s):  
Sri Rejeki
Keyword(s):  
Data Collection ◽  
Cooperative Learning ◽  
Learning Model ◽  
Average Score ◽  
Learning Achievement ◽  
Model Type ◽  
First Semester ◽  
Average Value ◽  
Collection Data ◽  
Academic Year

This study aims to improve learning achievement of craft subjects through cooperative learning model type NHT in students of class VII G SMP Negeri 5 Sukoharjo first semester academic year 2017/ 2018.This research is a Classroom Action Research conducted in class VII G SMP Negeri 5 Sukoharjo first semester of academic year 2017/ 2018 with 32 students. Data collection techniques used are tests, observations, and documentation. The stages of data analysis in this study are data collection, data reduction, data presentation, and conclusion. The success indicator is the average score of the student's test at least 80.0 and many students with a value above the minimum mastery criteria (KKM) of 70.0 reach ≥ 85%.Based on the research that has been done, it can be concluded that the application of cooperative learning model type NHT can improve learning achievement of craft subjects student of class VII G SMP Negeri 5 Sukoharjo. Before the action / pre cycle, student learning outcomes reaching KKM 15 students or 46,9%, in cycle I, 23 students or 71,9% and in cycle II, 30 students or 93,75%. The average value of the class before the action / pre cycle was 68.5 after the first cycle action was 76,7 and after the second cycle action was 82.1.Keywords: Cooperative learning model type NHT, learning achievement of craft subjects. AbstrakPenelitian ini bertujuan untuk meningkatkan prestasi belajar prakarya melalui model pembelajaran kooperatif tipe NHT pada siswa kelas VII G SMP Negeri 5 Sukoharjo semester I tahun pelajaran 2017/ 2018. Penelitian ini adalah Penelitian Tindakan Kelas yang dilakukan di kelas VII G SMP Negeri 5 Sukoharjo semester I tahun pelajaran 2017/ 2018 yang berjumah 32 siswa. Teknik pengumpulan data yang digunakan adalah tes, observasi, dan dokumentasi.Tahap-tahap analisis data dalam penelitian ini adalah pengumpulan data, reduksi data, penyajian data, dan penarikan kesimpulan. Indikator keberhasilan adalah nilai rata-rata tes siswa sekurang-kurangnya 80,0 dan banyak siswa dengan nilai di atas kriteria ketuntasan minimal (KKM) yaitu 70,0 mencapai ≥ 85%. Berdasarkan penelitian yang telah dilakukan, dapat disimpulkan bahwa penerapan model pembelajaran kooperatif tipe NHT dapat meningkatkan prestasi belajar bahasa prakarya siswa kelas VII G SMP Negeri 5 Sukoharjo. Sebelum tindakan/ prasiklus, prestasi belajar siswa yang mencapai KKM 15 siswa atau 46,9%, pada siklus I, 23 siawa atau 71,9% dan pada siklus II, 30 siswa atau 93,75%. Nilai rata-rata kelas sebelum tindakan/prasiklus sebesar 68,5 setelah tindakan siklus I sebesar 71,9 dan setelah tindakan siklus II sebesar 82,1.Kata Kunci: Model pembelajaran kooperatif tipe NHT, prestasi belajar prakarya.

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