期刊文献+
共找到9篇文章
< 1 >
每页显示 20 50 100
Proposal for Energy Consumption Reduction between Connected Objects in a Network Running on MQTT Protocol
1
作者 Saidou Haman Djorwe Temoa +1 位作者 Eric Michel Deussom Djomadji Kolyang   《Journal of Computer and Communications》 2024年第10期177-188,共12页
The “Internet of Things” (IoT) refers to a set of intelligent “objects” that can communicate with each other directly or through a network. The IoT is the embodiment of the idea that everything can be connected an... The “Internet of Things” (IoT) refers to a set of intelligent “objects” that can communicate with each other directly or through a network. The IoT is the embodiment of the idea that everything can be connected anywhere and at any time. The concept can be applied to sectors such as e-health, e-government, automotive, geographic information systems, remote sensing, home networking, e-commerce and climate change mitigation. Unlike the Internet, the IoT has its own constraints, notably those linked to heterogeneity. This divergence is linked to different protocols, technologies and algorithms implemented in these connected objects for their interconnection. It should be noted that IoT devices can communicate with each other using different protocols and dedicated M2M (Machine to Machine) communication technologies. The aim of this work is to find solutions for optimising energy consumption during data exchanges between connected objects, with respect to certain constraints by using firstly this exchange for only Message Queuing Telemetry Transport (MQTT) and secondly the combination of the MQTT protocol and the Constrained Application Protocol (CoAP) protocol to check the quantity of the energy optimized. The MQTT protocol, for example, is one of the most widely used protocols for connected objects. Admittedly, this protocol consumes less energy, but in the situation of a very large number of users, the problem of saturation inevitably arises. In this article, we propose a solution of optimising energy consumption by combining the MQTT protocol with the CoAP protocol which can allow to use the standby mode contrary to the use of MQTT where the broker is always being turning. This solution has not yet been implemented but is being discussed. In this article, we’re going to use the joulemeter which is an application developed by Microsoft to measure and estimate the energy consumption of computers and applications. In our case, we take the example of the “Service Broker for network connections” of the Windows’s 10 Operating System, in my own computer to show the difference between the consumption of energy without the standby mode and with standby mode, because with the MQTT, the Broker’s MQTT is always on. Now, with the combination MQTT and CoAP, it is possible that we have standby mode and to compare these two cases in term of consumption of an energy. And to do it, we must use the joulemeter that we installed in our computer to simulate it. This is achieved by using the CoAP protocol combined with the MQTT protocol. The aim of our work is to reduce energy consumption in order to solve the problem of saturation of the MQTT by linking it to CoAP protocol by using Joulemeter mentioned above. 展开更多
关键词 Internet of Things HETEROGENEITY message Queuing Telemetry transport Constrained Application Protocol Application-Layer Semantic Gateway GATEWAY
下载PDF
MQTT协议在机舱监测报警系统中的应用
2
作者 侯艳杰 焦少侠 +1 位作者 陈天祥 于栋亮 《船舶标准化工程师》 2024年第S01期45-49,共5页
为了探究消息队列遥测传输(Message Queuing Telemetry Transport, MQTT)协议在机舱监测报警系统中应用的可行性,基于机舱监测报警系统的发展现状,结合MQTT协议的工作流程及使用特点,对MQTT协议在机舱监测报警系统中实船应用的案例进行... 为了探究消息队列遥测传输(Message Queuing Telemetry Transport, MQTT)协议在机舱监测报警系统中应用的可行性,基于机舱监测报警系统的发展现状,结合MQTT协议的工作流程及使用特点,对MQTT协议在机舱监测报警系统中实船应用的案例进行分析。结果表明:采用MQTT协议传输信息到监测报警系统,所需要的通信电缆较少,能够传输的信号量明显增加,可显著降低船舶建造和后期运营维护成本。研究成果可为未来机舱监测报警系统的应用发展提供一定参考。 展开更多
关键词 机舱监测报警系统 消息队列遥测传输(message Queuing Telemetry transport MQTT) 物联网(Internet of Things IoT) 通信协议
下载PDF
EBAKE-SE: A novel ECC-based authenticated key exchange between industrial IoT devices using secure element
3
作者 Chintan Patel Ali Kashif Bashir +1 位作者 Ahmad Ali AlZubi Rutvij Jhaveri 《Digital Communications and Networks》 SCIE CSCD 2023年第2期358-366,共9页
Industrial IoT(IIoT)aims to enhance services provided by various industries,such as manufacturing and product processing.IIoT suffers from various challenges,and security is one of the key challenge among those challe... Industrial IoT(IIoT)aims to enhance services provided by various industries,such as manufacturing and product processing.IIoT suffers from various challenges,and security is one of the key challenge among those challenges.Authentication and access control are two notable challenges for any IIoT based industrial deployment.Any IoT based Industry 4.0 enterprise designs networks between hundreds of tiny devices such as sensors,actuators,fog devices and gateways.Thus,articulating a secure authentication protocol between sensing devices or a sensing device and user devices is an essential step in IoT security.In this paper,first,we present cryptanalysis for the certificate-based scheme proposed for a similar environment by Das et al.and prove that their scheme is vulnerable to various traditional attacks such as device anonymity,MITM,and DoS.We then put forward an interdevice authentication scheme using an ECC(Elliptic Curve Cryptography)that is highly secure and lightweight compared to other existing schemes for a similar environment.Furthermore,we set forth a formal security analysis using the random oracle-based ROR model and informal security analysis over the Doleve-Yao channel.In this paper,we present comparison of the proposed scheme with existing schemes based on communication cost,computation cost and security index to prove that the proposed EBAKE-SE is highly efficient,reliable,and trustworthy compared to other existing schemes for an inter-device authentication.At long last,we present an implementation for the proposed EBAKE-SE using MQTT protocol. 展开更多
关键词 Internet of things AUTHENTICATION Elliptic curve cryptography Secure key exchange message Queuing telemetry transport
下载PDF
IoT-Enabled Autonomous System Collaboration for Disaster-Area Management 被引量:3
4
作者 Abenezer Girma Niloofar Bahadori +5 位作者 Mrinmoy Sarkar Tadewos G.Tadewos Mohammad R.Behnia M.Nabil Mahmoud Ali Karimoddini Abdollah Homaifar 《IEEE/CAA Journal of Automatica Sinica》 SCIE EI CSCD 2020年第5期1249-1262,共14页
Timely investigating post-disaster situations to locate survivors and secure hazardous sources is critical,but also very challenging and risky.Despite first responders putting their lives at risk in saving others,huma... Timely investigating post-disaster situations to locate survivors and secure hazardous sources is critical,but also very challenging and risky.Despite first responders putting their lives at risk in saving others,human-physical limits cause delays in response time,resulting in fatality and property damage.In this paper,we proposed and implemented a framework intended for creating collaboration between heterogeneous unmanned vehicles and first responders to make search and rescue operations safer and faster.The framework consists of unmanned aerial vehicles(UAVs),unmanned ground vehicles(UGVs),a cloud-based remote control station(RCS).A light-weight message queuing telemetry transport(MQTT)based communication is adopted for facilitating collaboration between autonomous systems.To effectively work under unfavorable disaster conditions,antenna tracker is developed as a tool to extend network coverage to distant areas,and mobile charging points for the UAVs are also implemented.The proposed framework’s performance is evaluated in terms of end-to-end delay and analyzed using architectural analysis and design language(AADL).Experimental measurements and simulation results show that the adopted communication protocol performs more efficiently than other conventional communication protocols,and the implemented UAV control mechanisms are functioning properly.Several scenarios are implemented to validate the overall effectiveness of the proposed framework and demonstrate possible use cases. 展开更多
关键词 Architectural analysis and design language(AADL)and cloud computing disaster area management internet of things(IoT) message queuing telemetry transport(MQTT) unmanned aerial vehicle(UAV) unmanned ground vehicle(UGV)
下载PDF
Design and Implementation of the Sense Egypt Platform for Real-Time Analysis of IoT Data Streams 被引量:2
5
作者 A. S. Rozik A. S. Tolba M. A. El-Dosuky 《Advances in Internet of Things》 2016年第4期65-91,共28页
Nowadays, we experience an abundance of Internet of Things middleware solutions that make the sensors and the actuators are able to connect to the Internet. These solutions, referred to as platforms to gain a widespre... Nowadays, we experience an abundance of Internet of Things middleware solutions that make the sensors and the actuators are able to connect to the Internet. These solutions, referred to as platforms to gain a widespread adoption, have to meet the expectations of different players in the IoT ecosystem, including devices [1]. Low cost devices are easily able to connect wirelessly to the Internet, from handhelds to coffee machines, also known as Internet of Things (IoT). This research describes the methodology and the development process of creating an IoT platform. This paper also presents the architecture and implementation for the IoT platform. The goal of this research is to develop an analytics engine which can gather sensor data from different devices and provide the ability to gain meaningful information from IoT data and act on it using machine learning algorithms. The proposed system is introducing the use of a messaging system to improve the overall system performance as well as provide easy scalability. 展开更多
关键词 Internet of Things IoT Platforms IoT Big Data Analytics MQTT (message Queue Telemetry transport)
下载PDF
基于MQTT物联网协议的室内小区自动化监测系统 被引量:1
6
作者 沈刚华 《通信电源技术》 2022年第3期62-66,共5页
针对现有室内无线测试存在的问题,结合长期演进(Long Term Evolution,LTE)物联网标准,提出一种基于消息队列遥测传输(Message Queuing Telemetry Transport,MQTT)协议的室内小区自动化监测系统。该系统采用高性能LTE CAT.1无线通信模组... 针对现有室内无线测试存在的问题,结合长期演进(Long Term Evolution,LTE)物联网标准,提出一种基于消息队列遥测传输(Message Queuing Telemetry Transport,MQTT)协议的室内小区自动化监测系统。该系统采用高性能LTE CAT.1无线通信模组,按照MQTT协议的发布/订阅机制进行应用开发。阐述总体框架、软件设计、运作流程等,并通过已部署实例表明系统稳定可靠,能够满足全天候、自动化和低成本的电信运营商需求。 展开更多
关键词 message Queuing Telemetry transport(MQTT) 室内小区 自动化监测 LTE CAT.1
下载PDF
A Hybrid IoT Security Model of MQTT and UMA
7
作者 Khalid S. Aloufi Omar H. Alhazmi 《Communications and Network》 2020年第4期155-173,共19页
IoT applications are promising for future daily activities;therefore, the number of IoT connected devices is expected to reach billions in the coming few years. However, IoT has different application frameworks. Furth... IoT applications are promising for future daily activities;therefore, the number of IoT connected devices is expected to reach billions in the coming few years. However, IoT has different application frameworks. Furthermore, IoT applications require higher security standards. In this work, an IoT application framework is presented with a security embedded structure using the integration between message queue telemetry transport (MQTT) and user-managed access (UMA). The performance analysis of the model is presented. Comparing the model with existing models and different design structures shows that the model presented in this work is promising for a functioning IoT design model with security. The security in the model is a built-in feature in its structure. The model is built on recommended frameworks;therefore, it is ready for integration with other web standards for data sharing, which will help in making IoT applications integrated from different developing parties. 展开更多
关键词 IOT MQTT (message Queuing Telemetry transport) UMA (User-Managed Access) Network Security Smart City
下载PDF
Performance Analysis of the Hybrid MQTT/UMA and Restful IoT Security Model
8
作者 Omar H. Alhazmi Khalid S. Aloufi 《Advances in Internet of Things》 2021年第1期26-41,共16页
Internet of Things (IoT) environments are being deployed all over the globe. They have the potential to form solutions to applications, from small scale applications to national and international ones. Therefore, scal... Internet of Things (IoT) environments are being deployed all over the globe. They have the potential to form solutions to applications, from small scale applications to national and international ones. Therefore, scalability, performance, and security form a triangle of requirements that must be carefully set. Furthermore, IoT applications require higher security standards. A previously proposed IoT application framework with a security embedded structure using the integration between message queue telemetry transport (MQTT) and user-managed access (UMA) is analyzed in this work. The performance analysis of the model is presented. Comparing the model with existing models and different design structures shows that the model presented in this work is promising for a functioning IoT design model with security. The results and analysis showed that the built-in security model had performed better than models with other frameworks, especially with fog implementation. 展开更多
关键词 IOT MQTT (message Queuing Telemetry transport) UMA (User-Managed Access) Network Security
下载PDF
精密三角高程测量自动化控制系统研究与实现 被引量:1
9
作者 张恒 滕德贵 黄赟 《测绘地理信息》 CSCD 2021年第5期37-40,共4页
为简化精密三角高程测量的操作步骤及作业流程以提升效率,提出了一种精密三角高程测量自动化控制策略,并详细论述了系统架构设计、自动化控制策略实现机理及关键功能模块划分;研发了一套由测量机器人控制应用程序及服务器程序组成的自... 为简化精密三角高程测量的操作步骤及作业流程以提升效率,提出了一种精密三角高程测量自动化控制策略,并详细论述了系统架构设计、自动化控制策略实现机理及关键功能模块划分;研发了一套由测量机器人控制应用程序及服务器程序组成的自动化测量控制系统。该系统被应用于重庆市轨道交通工程。结果表明:该系统实现了对主站和辅站观测流程的联动控制及对仪器测量的自动控制,整个过程无需人工干预,测量误差实时检校,不仅保证了原始数据记录的准确性,也显著提升了作业效率。 展开更多
关键词 精密三角高程测量 自动化控制 二等水准 消息队列遥测传输(message queuing telemetry transport MQTT)
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部