A Low-Delay, Light-Weight Publish/Subscribe Architecture for Delay-Sensitive IOT Services

2013 ◽  
Vol 10 (3) ◽  
pp. 60-81 ◽  
Author(s):  
Yunlei Sun ◽  
Xiuquan Qiao ◽  
Wei Tan ◽  
Bo Cheng ◽  
Ruisheng Shi ◽  
...  

In order to build a low-latency and light-weight publish/subscribe (pub/sub) system for delay-sensitive IOT services, the authors propose an efficient and scalable broker architecture named Grid Quorum-based pub/sub (GQPS). As a key component in Event-Driven Service-Oriented Architecture (EDSOA) for IOT services, this architecture organizes multiple pub/sub brokers into a Quorum-based peer-to-peer topology for efficient topic searching. It also leverages a topic searching algorithm and a one-hop caching strategy to minimize the search latency. Light-weight RESTful interfaces make the authors’ GQPS more suitable for IOT services. Cost analysis and experimental study demonstrate that the GQPS achieves a significant performance gain in search satisfaction without compromising search cost. The authors apply the proposed GQPS in the District Heating Control and Information Service System in Beijing, China. This system validates the effectiveness of GQPS.

2018 ◽  
Vol 25 (s1) ◽  
pp. 5-13 ◽  
Author(s):  
Natalia Wawrzyniak ◽  
Andrzej Stateczny

Abstract The article presents the watercraft recognition and identification system as an extension for the presently used visual water area monitoring systems, such as VTS (Vessel Traffic Service) or RIS (River Information Service). The watercraft identification systems (AIS - Automatic Identification Systems) which are presently used in both sea and inland navigation require purchase and installation of relatively expensive transceivers on ships, the presence of which is not formally required as equipment of unconventional watercrafts, such as yachts, motor boats, and other pleasure crafts. These watercrafts may pose navigation or even terrorist threat, can be the object of interest of the customs, or simply cause traffic problems on restricted water areas. The article proposes extending the traffic supervision system by a module which will identify unconventional crafts based on video monitoring. Recognition and identification will be possible through the use of image identification and processing methods based on artificial intelligence algorithms, among other tools. The system will be implemented as independent service making use of the potential of SOA (Service Oriented Architecture) and XML/SOAP (Extensible Markup Language/Simple Object Access Protocol) technology.


Author(s):  
Janis Kampars

This paper addresses common problems like poor reusability, closed vendor proprietary framework, limited customizability which are associated with use of traditional Geographic Information Systems (GIS) and proposes architecture of new generation GIS. The architecture described in this paper is based on Service Oriented Architecture and open standards. It consists of Geographic Information Service Provider, Geographic Information Service Consumer and Geographic Information Mediation Infrastructure. The new generation GIS allows achieving high level of reusability both on GIS logic and orchestration layer. Its broad customizability capabilities make it suitable for wide user audience.


2014 ◽  
Vol 998-999 ◽  
pp. 1219-1222 ◽  
Author(s):  
Min Zhang ◽  
Ren Zhang ◽  
Cheng Sheng Liu

This paper proposes a service-oriented architecture of smart healthcare information service platform with three main services based on concept of cloud computing. In addition to ensuring traditional hospital management and IT-based clinical treatment, this smart healthcare platform also support abundant medical services, such as remote healthcare, chronic illness management, and rural healthcare centers. Rural healthcare centers can largely benefit from cloud based models in terms of cost reduction and resource utilization. It will not only reduce the development cost but improve the maintainability and adoption of evolving technologies.


Author(s):  
Rebeca P. Díaz Redondo ◽  
Manuel Caeiro Rodríguez ◽  
Juan José López Escobar ◽  
Ana Fernández Vilas

Abstract Lifelong learning requires appropriate solutions, especially for corporate training. Workers usually have difficulty combining training and their normal work. In this context, micro-learning emerges as a suitable solution, since it is based on breaking down new concepts into small fragments or pills of content, which can be consumed in short periods of time. The purpose of this paper is twofold. First, we offer an updated overview of the research on this training paradigm, as well as the different technologies leading to potential commercial solutions. Second, we introduce a proposal to add micro-learning content to more formal distance learning environments (traditional Learning Management Systems or LMS), with the aim of taking advantage of both learning philosophies. Our approach is based on a Service-Oriented Architecture (SOA) that is deployed in the cloud. In order to ensure the full integration of the micro-learning approach in traditional LMSs, we have used two well-known standards in the distance learning field: LTI (Learning Tools Interoperability) and LIS (Learning Information Service). The combination of these two technologies allows the exchange of data with the LMS to monitor the student’s activity and results. Finally, we have collected the opinion of lectures from different countries in order to know their thoughts about the potential of this new approach in higher education, obtaining positive feedback.


2011 ◽  
Vol 121-126 ◽  
pp. 2845-2849
Author(s):  
Yun Sheng Ge ◽  
Xiao Jian ◽  
Yang Liu

In the analysis of existing travel information service system of the main problems and travel information services on the basis of the relevant business processes, combining Service Oriented Architecture (SOA) the advantages. This paper proposes a method of travel information service system based on SOA overall design scheme. Its core content is SOA thought, as a theoretical guide in technical standard. The use of the existing AJAX, XML and Web Services, and other related technologies. For travel information services designed to service granularity. The scheme through a loose coupling, cross-platform system structure to reusing existing application system function module, easily incorporated into existing application systems to the new systems. Thus fully utilize existing resources.


Sign in / Sign up

Export Citation Format

Share Document