传感技术(英文)最新文献_第10页

Optimal Hop Lengths to Ensure Minimum Energy Consumption in Wireless Sensor Networks 无线传感器网络中保证最小能量消耗的最佳跳长

传感技术(英文) Pub Date : 2018-10-01 DOI: 10.4018/IJTD.2018100101

Mekkaoui Kheireddine, Rahmoun Abdellatif

引用次数: 1

Contribution to the Optimization of the Energy Consumption in SDN Networks 对SDN网络能耗优化的贡献

传感技术(英文) Pub Date : 2018-09-29 DOI: 10.4236/JST.2018.83005

L. Kra, Yake Gondo, Bi Tra Goore, O. Asseu

{"title":"Contribution to the Optimization of the Energy Consumption in SDN Networks","authors":"L. Kra, Yake Gondo, Bi Tra Goore, O. Asseu","doi":"10.4236/JST.2018.83005","DOIUrl":"https://doi.org/10.4236/JST.2018.83005","url":null,"abstract":"With the advent of new technologies such as IoT (Internet of Things) and Big Data, the increase in users and their different communications have led to a significant increase in energy consumption in network equipment. A new networking technology called SDN (Software Defined Network) is born. It aims to make network management easier. The SDN consists of decoupling the control plane that is the brain, the data plane or the muscles of the network. It allows the programmability of network devices and also the redirection of flows. One or more centralized controllers use algorithms to act remotely on network devices. Because of its operation, this new technology offers opportunities to improve network performance and optimize energy consumption. In this paper, we will use this technology (SDN) to suspend links or routers when they are not used while taking into account the congestion that degrades the quality of service in the network. We have formulated this problem as a linear integer program and proposed algorithms to process it in normal period and peak period. We have used the OMNET ++ simulator to evaluate our algorithms. Thus, our approach showed that 87.5% of ports and 33.33% of links could be shut down to save energy.","PeriodicalId":68742,"journal":{"name":"传感技术(英文)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42710681","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

温度/湿度/光强多参数测量仪研制温度/湿度/光强多参数测量仪研制

传感技术(英文) Pub Date : 2018-09-28 DOI: 10.12677/JSTA.2018.64014

蓝德高, 赵晓锋

引用次数: 0

Angular Position Estimation of an Inverted Pendulum Using Low-Cost IMUs 基于低成本imu的倒立摆角位置估计

传感技术(英文) Pub Date : 2018-09-10 DOI: 10.12691/ajst-5-1-1

D. Aoyagi, Sukgi Choi

{"title":"Angular Position Estimation of an Inverted Pendulum Using Low-Cost IMUs","authors":"D. Aoyagi, Sukgi Choi","doi":"10.12691/ajst-5-1-1","DOIUrl":"https://doi.org/10.12691/ajst-5-1-1","url":null,"abstract":"Seeking an affordable solution to measure a bicycle’s roll angle, we came across an Inertial Measurement Unit (IMU) BNO055 by Bosch, which contains 3-axis accelerometer, gyroscope, and magnetometer, and is advertised to produce “absolute orientation” by a built-in proprietary “Fusion” algorithm. We found another low-cost IMU, an MPU-9250 from InvenSense, which could also calculate absolute orientation via embedded Fusion software. Being unable to find information about dynamic characteristics of these IMUs in their datasheets, we sought to evaluate them under dynamic conditions, specifically in the estimation of roll angle. We constructed an inverted pendulum as a model of a bicycle, mounted both IMUs on it, and attached a potentiometer to measure actual angular position for reference. Additionally, as an alternative to the proprietary Fusion algorithms, we devised and implemented an Extended Kalman Filter, which, we hypothesized, would perform better than the proprietary Fusion algorithms, because our algorithm incorporated the kinematics of the inverted pendulum while the Fusion algorithm of the IMUs did not. In a series of experiments, we observed a significant time lag, about 0.05-0.1 second, in BNO055’s raw acceleration and gyro signals. The BNO055’s Fusion responded with similar lag and an offset of 0.5-3°; we also noticed rather unpredictable fluctuation in the output signals, possibly due to its “automatic calibration” feature, which cannot be disabled. The MPU-9250 exhibited better performance than the BNO055 in terms of raw acceleration signals and, particularly, gyro signals. The MPU-9250’s Fusion performed somewhat better than BNO055’s, typically showing lag of 0.03-0.06 sec and static offset of 0.5-1°. Our implementation of Kalman Filter based on MPU-9250 raw signal performed better than either Fusion algorithm, with about 0.02-0.03 second lag and 0.5-1° offset, supporting our hypothesis. Our next step is to experiment on an actual bicycle in motion.","PeriodicalId":68742,"journal":{"name":"传感技术(英文)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46083248","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

基于STM32单片机的车载酒精检测系统设计Design of Vehicle Alcohol Detection System Based on STM32 Design of Vehicle Alcohol Detection System Based on STM32 Microcontroller

传感技术(英文) Pub Date : 2018-07-04 DOI: 10.12677/JSTA.2018.63012

丁泽源, 吴传秀, 何军平, 宋永献, 王经卓, 毕训银

引用次数: 1

EEA

传感技术(英文) Pub Date : 2018-07-01 DOI: 10.4018/ijwnbt.2018070102

Hassan El Alami, A. Najid

引用次数: 20

Adaptive Cluster Head Selection Scheme for High Mobility Based IEEE 802.15.6 Wireless Body Area Networks 基于高移动性IEEE 802.15.6无线体域网的自适应簇头选择方案

传感技术(英文) Pub Date : 2018-06-14 DOI: 10.4236/JST.2018.82003

Anthony Mile, G. Okeyo, Ann Kibe

{"title":"Adaptive Cluster Head Selection Scheme for High Mobility Based IEEE 802.15.6 Wireless Body Area Networks","authors":"Anthony Mile, G. Okeyo, Ann Kibe","doi":"10.4236/JST.2018.82003","DOIUrl":"https://doi.org/10.4236/JST.2018.82003","url":null,"abstract":"Due to the development in the field of Wireless Sensor Networks (WSNs), its major application, Wireless Body Area Network (WBAN) has presently become a major area of interest for the developers and researchers. Efficient sensor nodes data collection is the key feature of any effective wireless body area network. Prioritizing nodes and cluster head selection schemes plays an important role in WBAN. Human body exhibits postural mobility which affects distances and connections between different sensor nodes. In this context, we propose maximum consensus based cluster head selection scheme, which allows cluster head selection by using Link State. Nodal priority through transmission power is also introduced to make WBAN more effective. This scheme results in reduced mean power consumption and also reduces network delay. A comparison with IEEE 802.15.6 based CSMA/CA protocol with different locations of cluster head is presented in this paper. These results show that our proposed scheme outperforms Random Cluster head selection, Fixed Cluster head at head, Foot and Belly positions in terms of mean power consumption, network delay, network throughput and bandwidth efficiency.","PeriodicalId":68742,"journal":{"name":"传感技术(英文)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43526193","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Data Prediction in Distributed Sensor Networks Using Adam Bashforth Moulton Method 基于Adam Bashforth Moulton方法的分布式传感器网络数据预测

传感技术(英文) Pub Date : 2018-06-14 DOI: 10.4236/JST.2018.82004

Monirul Islam, Zabir Al Nazi, A. Hossain, M. Rana

引用次数: 6

A Quadrilateral Prism of Self-invisibility 自隐身四边形棱镜

传感技术(英文) Pub Date : 2018-05-15 DOI: 10.12691/AJVD-4-1-2

Yizong He

引用次数: 0

无线传感器网络QOS-QOE节能优化模型QOS-QOE Energy Saving Optimization Model for Wireless Sensor Networks 无线传感器网络QOS-QOE节能优化模型QOS-QOE Energy Saving Optimization Model for Wireless Sensor Networks

传感技术(英文) Pub Date : 2018-04-11 DOI: 10.12677/JSTA.2018.62006

侯义斌

引用次数: 2