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Design and Development of a Wireless Communication Network Based Ambient Air Quality Monitoring System for Metropolitan Cities 基于无线通信网络的大城市环境空气质量监测系统的设计与开发
Pub Date : 2018-01-01 DOI: 10.4172/2090-4886.1000158
R. Naik, Naganada Sn, Anusha Vadde
December 2015, marks the 32nd anniversary of the gas tragedy in Bhopal, India. Stagnant weather conditions caused a sharp increase in fatalities and for more than a year almost four people died each day leading an unexpected death toll over 4000 due to the release of 42 tons of toxic Methyl Isocyanate gas. This event is not an isolated incident that affected humans and the environment, as there have been many similar events such as Meuse valley, Belgium, London Smog event etc. Particulate air pollution has been conventionally measured by passing air through a particular filter paper and determining the density of black stain, known as “black smoke method”. Most metropolitan cities are seeing a significant increase in their vehicular registration count and have increased the black exhaust containing CO and other harmful gases along with particulate matter, thus rendering the black smoke method obsolete.
2015年12月是印度博帕尔毒气惨案32周年。停滞的天气条件导致死亡人数急剧增加,一年多来每天几乎有四人死亡,由于42吨有毒异氰酸甲酯气体的释放,死亡人数意外超过4000人。这次事件并不是一个孤立的影响人类和环境的事件,因为有许多类似的事件,如默兹山谷,比利时,伦敦烟雾事件等。颗粒物空气污染的传统测量方法是让空气通过特定的滤纸,并测定黑色污渍的密度,即“黑烟法”。大部分大城市的机动车登记数大幅增加,含有一氧化碳等有害气体和颗粒物的黑废气也在增加,因此黑烟法已经过时。
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引用次数: 0
A Cyber-Physical System for Environmental Monitoring 面向环境监测的信息物理系统
Pub Date : 2018-01-01 DOI: 10.4172/2090-4886.1000154
Pratik Padher, Vm Rohokale
This paper presents the improvement of a cyber-physical framework which screens the ecological states alternately the encompassing states for example, temperature, pressure in indoor spaces in remote areas. The correspondences between Transmitters and Receivers are performed towards remote foundation which is dependent upon the IEEE 802.11 b/g standards. The resulted solution gives likelihood about logging estimations from areas throughout the world and for visualizing and examining this assembled information from the device associated with Internet. This work includes the complete solution, A cyber-physical system, beginning with physical level, comprising from claiming sensors, processor and the correspondence protocol, and arriving at information management and stockpiling at the digital level. The test outcomes indicate that the suggested framework represents a feasible and straightforward solution for economical monitoring applications.
本文提出了一种改进的网络物理框架,该框架交替筛选生态状态和包围状态,例如,偏远地区室内空间的温度、压力。发射器和接收器之间的通信是对依赖于IEEE 802.11 b/g标准的远程基础执行的。由此产生的解决方案提供了来自世界各地的测井估计的可能性,以及对来自与Internet相关的设备的这些组合信息进行可视化和检查的可能性。这项工作包括完整的解决方案,一个网络物理系统,从物理层开始,包括声明传感器,处理器和通信协议,并到达数字级的信息管理和存储。测试结果表明,该框架为经济监测应用提供了一种可行和直接的解决方案。
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引用次数: 16
The Use of WSNs for Structural Health Monitoring 传感器网络在结构健康监测中的应用
Pub Date : 2018-01-01 DOI: 10.4172/2090-4886.1000E112
S. Aparicio
The routing topology, i.e., the path to be followed by the information transmitted by each node to reach the base and transmit it to the user, is determinant for the operation of the network. There are different topologies-star, tree, mesh, etc. that are suitable for each type of application. Once the data is received through the gateway, the information must be stored, processed, analyzed and presented to the user in the most appropriate way, and sometimes it is very important that this is done in real time.
路由拓扑,即各节点传输的信息到达基站并传送给用户所遵循的路径,是网络运行的决定因素。有不同的拓扑——星形、树形、网状等,适用于每种类型的应用程序。一旦通过网关接收到数据,就必须以最合适的方式存储、处理、分析信息并将其呈现给用户,有时实时完成这些工作非常重要。
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引用次数: 0
Using Malleable Signatures to Allow Multi-Show Capability in Digital Credentials 在数字凭证中使用可塑签名允许多显示功能
Pub Date : 2018-01-01 DOI: 10.4172/2090-4886.1000160
Jinnan Fan, C. Adams
In this paper we propose the use of a malleable signature technique to transform Brands’ digital credentials from single-show capability to multi-show capability. Our specific proposed instantiation uses RSA digital signatures so that Alice can efficiently transform an original credential and its corresponding CA signature to a randomized / blinded version of the credential and signature that can be shown to a verifier without risk of traceability (by the CA or across multiple verifiers). We describe our modified issuing and showing protocols and discuss the security properties of our proposed scheme.
在本文中,我们提出使用可塑签名技术将品牌的数字证书从单次显示能力转换为多次显示能力。我们具体建议的实例使用RSA数字签名,因此Alice可以有效地将原始凭据及其相应的CA签名转换为可以向验证者展示的随机/盲化版本的凭据和签名,而不会有可追溯性的风险(由CA或跨多个验证者)。我们描述了修改后的发布和显示协议,并讨论了我们提出的方案的安全特性。
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引用次数: 1
Smart Tunnel Farming Model: An Inculcation of Cloud Computing with Cortex for Reliable Agricultural Production 智能隧道农业模式:为可靠的农业生产灌输云计算与皮层
Pub Date : 2018-01-01 DOI: 10.4172/2090-4886.1000161
S. M. Alam, Ahmed Hasssan, Abeer Bashir, M. Iqbal
Agriculture is the backbone of a country particularly in South Asia because of excessive agrarian land resides there. It is beneficial for human growth and the State’s emerging Gross Domestic Product (GDP). South Asia particularly Pakistan is facing severs challenges of poverty, hunger and malnutrition along with growing population. Under these conditions, horticulture governed with emerging scientific research and developments can play a vital role in order to cope up with such challenges. Tunnel farming is such kind of one development being practiced across the globe to obtain off-season crops with three folds of more production as compared to the traditional way of vegetation. In this regard the concept of Internet of Things (IoT) is a promising approach which finds its expertise in every field of life including agriculture sector. Its application in tunnel farming has been generating ambitious results in the past few years therefore, a sound architecture and model based on latest, robust and reliable technologies can change the fate of agricultural sector in Pakistan. This paper proposed a framework with hardware design which comprises of accurate sensors for data transmission to Cortex based MPU, cloud based data unit and further appropriate actuators to regulate the desired microclimatic conditions inside the tunnel to improve the productivity followed by more revenue. Proposed hardware model provides a cheap, optimal and automatic tunnel farming solution to the middle class farmer, growing off-season crops at the far ends of the country with scarcity of electricity and water resources. Furthermore it presents a reliable user friendly database and a very simple GUI that makes it easy for the farmer to monitor the climatic changes, optimal resource utilization, the production at the far site end and its healthy transportation to the nearest consumer market along with periodic reporting of location and vital microclimatic conditions inside the vehicle. To our knowledge, this is the first proposed hardware model which uses Cortex based microcontroller for Smart Tunnel Farming. By the proposed hardware model, the cost of electricity and water can be reduced by 30 to 40% and an average of 20% increment in the production and supply of targeted crops by automatic adjustment of optimal climatic conditions inside the tunnel and monitoring of crops transportation system.
农业是一个国家的支柱,特别是在南亚,因为那里有过多的耕地。它有利于人的成长和国家新兴的国内生产总值(GDP)。随着人口的增长,南亚特别是巴基斯坦正面临着贫困、饥饿和营养不良的严峻挑战。在这种情况下,园艺与新兴的科学研究和发展可以发挥至关重要的作用,以应对这些挑战。隧道农业就是这样一种发展,它在全球范围内得到了反季节作物,与传统的植被种植方式相比,产量增加了三倍。在这方面,物联网(IoT)的概念是一种很有前途的方法,它在包括农业部门在内的每个生活领域都有其专业知识。在过去几年中,它在隧道农业中的应用已经取得了雄心勃勃的成果,因此,基于最新、强大和可靠技术的健全架构和模式可以改变巴基斯坦农业部门的命运。本文提出了一个框架和硬件设计,其中包括精确的传感器,用于将数据传输到基于Cortex的MPU,基于云的数据单元和进一步适当的执行器,以调节隧道内所需的微气候条件,从而提高生产率,从而增加收入。所提出的硬件模型为中产阶级农民提供了一种廉价、优化和自动化的隧道农业解决方案,在电力和水资源稀缺的国家偏远地区种植反季节作物。此外,它还提供了一个可靠的用户友好型数据库和一个非常简单的GUI,使农民能够轻松监测气候变化、最佳资源利用、远端生产及其健康运输到最近的消费者市场,并定期报告车辆内的位置和重要的小气候条件。据我们所知,这是第一个使用基于Cortex的智能隧道农业微控制器的硬件模型。通过所提出的硬件模型,通过隧道内最优气候条件的自动调节和作物运输系统的监控,可使目标作物的生产和供应减少30 - 40%的水电成本,平均增加20%。
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引用次数: 3
Smart Micro/Nano Sensors and their Applications in Intelligent Sensory Network System 智能微纳传感器及其在智能传感网络系统中的应用
Pub Date : 2018-01-01 DOI: 10.4172/2090-4886.1000E113
R. Kumar
A comprehensive overview on the development of micro/nano sensors has been presented on the present/future trend, consumer needs, market demand and their exploitation in various technical fields. The emerging sensors and sensing technology will have dramatic impact on social and industrial revolutions. Indeed in past decade, the sensors technology has emerged as one of the fastest growing market ($ billion dollar estimated in short span of 10 years) at consumer and industrial level like robotics, artificial intelligence, wearable technology, internet of things, automotive, mobile devices, smartphones, electric vehicles, medical and new emerging environmental technology [1]. In future, millions of nanosensors around us will play a dynamic role to monitoring the different activities in our daily life. Moreover, the new emerging sensors technologies based on transparent conducting oxide chemical sensors printed on flexible substrates can also revolutionize the idea and fulfill the demand at different scientific level.
综述了微纳传感器的发展现状、未来趋势、消费者需求、市场需求及其在各个技术领域的应用。新兴的传感器和传感技术将对社会革命和工业革命产生巨大影响。事实上,在过去的十年中,传感器技术已经成为消费和工业层面增长最快的市场之一(预计在短短10年内将达到10亿美元),与机器人、人工智能、可穿戴技术、物联网、汽车、移动设备、智能手机、电动汽车、医疗和新兴环境技术一样。未来,我们周围数以百万计的纳米传感器将发挥动态作用,监测我们日常生活中的不同活动。此外,基于透明导电氧化物化学传感器印刷在柔性基板上的新兴传感器技术也可以彻底改变这一想法,满足不同科学水平的需求。
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引用次数: 3
Sensor Web: An Infrastructure for Real-Time Smart Applications 传感器网络:实时智能应用的基础设施
Pub Date : 2018-01-01 DOI: 10.4172/2090-4886.1000E114
C. Xiao, N. Chen
Sensor Web, firstly proposed by NASA, is defined as a smart macro instrument for coordinated sensing. It consists of various sensor nodes that not only collect data, but also share data and adjust their behaviors [1-3]. Recently, as the development of Global Earth Observation System of Systems (GEOSS), Smart City and Internet of Things (IoT), tens of millions of heterogeneous sensors, including space-borne, airborne, in-situ and mobile sensors have been deployed in different fields and for various purposes. The earth, the cities have never been thoroughly and dynamically sensed as they are nowadays.
传感器网(Sensor Web)是由美国国家航空航天局(NASA)首先提出的,它被定义为协调传感的智能宏观工具。它由各种传感器节点组成,这些节点不仅收集数据,还共享数据并调整其行为[1-3]。近年来,随着全球地球观测系统(GEOSS)、智慧城市和物联网(IoT)的发展,数以千万计的异构传感器,包括星载、机载、原位和移动传感器,已被部署在不同领域和不同用途。地球,城市从来没有像现在这样被彻底和动态地感知过。
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引用次数: 0
Optical Multi-ring Cascade Cavity Temperature Sensor with Ultra-High Sensitivity 超高灵敏度光学多环级联腔温度传感器
Pub Date : 2018-01-01 DOI: 10.4172/2090-4886.1000155
Shen San-min, Deng Jia-hao, Yan Shu-bin
An ultra-small integrated photonic ten-order resonators temperature sensor has been proposed and demonstrated and fabrication using well-developed MEMS technologies incorporates a silicon ring resonator. The temperature variation is measured by monitoring the shift in the ten-order resonant wavelength of the silicon resonator, which was induced by the thermo-optic effect and the thermal expansion effect. The best achieved sensitivity is about 130 pm/°C for a waveguide width of 450 nm, and the radius of the micro ring is about 5 μm. Meanwhile, the two-channel sensor based on double racetrack rings is also reported.
提出并演示了一种超小型集成光子十阶谐振器温度传感器,并采用先进的MEMS技术制造了一个硅环谐振器。温度变化是通过监测硅谐振腔的十阶谐振波长的位移来测量的,这种位移是由热光效应和热膨胀效应引起的。当波导宽度为450 nm时,获得的最佳灵敏度约为130 pm/°C,微环半径约为5 μm。同时,还报道了基于双赛道环的双通道传感器。
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引用次数: 0
Indoor Positioning System with Pedestrian Dead Reckoning and BLE Inverse Fingerprinting 基于行人航位推算和BLE反指纹识别的室内定位系统
Pub Date : 2018-01-01 DOI: 10.4172/2090-4886.1000159
H. Bae, L. Choi
Since the adoption of Bluetooth Low Energy (BLE) in the Bluetooth standard in 2010, BLE beacons are emerging as one of the most viable solutions for indoor localization due to its power efficient architecture, short scan duration, low cost chipset, and wide adoption in the devices. The existing indoor positioning systems based on BLE beacons employ the classical fingerprinting (FP) technique where user terminals collect signals from the beacons and do most of localization computations, requiring significant power consumption on user devices. However, constant power consumption on limited battery life of a mobile device can be problematic when it comes to supporting server-oriented tracking applications. To address this issue, we have proposed a new fingerprinting technique called inverse fingerprinting (Inv-FP), which is a server side BLE fingerprint system where most of the positioning computations are done by BLE sniffers and servers, thus minimizing the computation overhead of user devices. However, the absolute positioning schemes such as FP and Inv-FP do not use the current position estimate to determine the next position. This leads to discontiguous, irregular route prediction especially when the positioning accuracy is low, since it does not reflect the continuity of the position change according to the movement of the user. In contrast, a relative positioning scheme such as Pedestrian Dead Reckoning (PDR) determines the current position based on the previous position, reflecting the continuity of the position change but it cannot estimate the current position without the initial position. In this paper, we implement both FP and Inv-FP and evaluate their performance in small and large-scale testbeds. We analyze various characteristics of Inv-FP in comparison with the classical beacon based FP, and demonstrate that Inv-FP can match the performance of FP but with minimal power consumption on user devices. In addition, we propose a new localization algorithm that can combine Inv-FP with PDR. By integrating PDR with Inv-FP, we show that localization error can be reduced by reflecting the advantages of each method.
自2010年在蓝牙标准中采用低功耗蓝牙(BLE)以来,由于其节能架构,短扫描时间,低成本芯片组以及在设备中的广泛采用,BLE信标正在成为室内定位最可行的解决方案之一。现有的基于BLE信标的室内定位系统采用经典的指纹识别技术,用户终端从信标收集信号并进行大部分定位计算,这对用户设备的功耗要求很高。但是,在移动设备有限的电池寿命下,持续的功耗在支持面向服务器的跟踪应用程序时可能会出现问题。为了解决这个问题,我们提出了一种新的指纹识别技术,称为反向指纹识别(Inv-FP),这是一种服务器端BLE指纹系统,其中大部分定位计算由BLE嗅探器和服务器完成,从而最大限度地减少了用户设备的计算开销。然而,像FP和Inv-FP这样的绝对定位方案并不使用当前位置估计来确定下一个位置。这就导致了不连续、不规则的路线预测,特别是在定位精度较低的情况下,因为它没有反映出位置随用户运动变化的连续性。相比之下,行人航迹推算(PDR)等相对定位方案根据前一个位置确定当前位置,反映了位置变化的连续性,但没有初始位置无法估计当前位置。在本文中,我们实现了FP和Inv-FP,并在小型和大型测试平台上评估了它们的性能。我们分析了Inv-FP的各种特性,并将其与经典的基于信标的FP进行了比较,并证明Inv-FP可以在用户设备上以最小的功耗匹配FP的性能。此外,我们还提出了一种将Inv-FP与PDR相结合的定位算法。通过将PDR与Inv-FP相结合,我们发现通过反映每种方法的优点可以减小定位误差。
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引用次数: 2
Data Sampling in Sensor Networks: New Trends in Smart City Applications 传感器网络中的数据采样:智慧城市应用的新趋势
Pub Date : 2018-01-01 DOI: 10.4172/2090-4886.1000E115
Andre L. L. Aquino
When we think about “Data sampling in sensor networks applied to smart city applications", we depicted several interdisciplinary areas and problems [1]. The central concepts in smart city applications are traditional sensor networks with intelligent devices [2,3]; Internet of things [4]; social sensing [5]; and cloud sensing [6]. Nowadays, the central issue in these scenarios is “how to perform data sampling when these concepts are integrated".
当我们考虑“应用于智慧城市应用的传感器网络数据采样”时,我们描述了几个跨学科领域和问题[1]。智慧城市应用的核心概念是具有智能设备的传统传感器网络[2,3];物联网b[4];社会感知[5];还有云感应[6]。如今,这些场景中的核心问题是“当这些概念集成在一起时,如何执行数据采样”。
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引用次数: 0
期刊
International journal of sensor networks and data communications
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