Pub Date : 2007-06-21DOI: 10.1109/WISES.2007.4408503
Daniele Marcozzi, M. Conti
This paper presents an analysis of an image processing performance requirements of a low power wireless image sensors network for video-surveillance. The specifications on the processing algorithms considered are: low complexity for a low power hardware-software implementation, high image compression for reducing wireless transmission power and bandwidth, acceptable image quality for video-surveillance applications under bad illumination conditions and in presence of noise in the wireless channel. The specifications have been defined for a possible implementation of the image wireless network over the low cost, low power but low rate Zibee wireless protocol.
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Pub Date : 2007-06-21DOI: 10.1109/WISES.2007.4408509
Mario Ibáñez, N. M. Madrid, R. Seepold
The residential gateway (RGW) is a key infrastructure component in home networks. Nowadays, the Open Service Gateway Initiative (OSGi) seems to be the only platform alternative supporting hot-plug of services and an easy way to deploy new ones which are capable to integrate heterogeneous devices into a common platform. But this platform can be managed by only one manager in a secure way, and this is limiting possible business models. The problem can be solved virtualizing the OSGi platform in such way that service providers can manage the RGW, and have full control over the services that they have installed, without conflicting with other service providers. This paper presents a general architecture for the virtualization of OSGi platforms that are running in a RGW.
住宅网关(RGW)是家庭网络中重要的基础设施组成部分。如今，开放服务网关计划(Open Service Gateway Initiative, OSGi)似乎是唯一一个支持服务热插拔的替代平台，也是一种部署新服务的简便方法，这些新服务能够将异构设备集成到一个公共平台中。但是这个平台只能由一个管理员以一种安全的方式管理，这限制了可能的业务模式。这个问题可以通过虚拟化OSGi平台来解决，这样服务提供者就可以管理RGW，并完全控制他们所安装的服务，而不会与其他服务提供者发生冲突。本文提出了在RGW中运行的OSGi平台虚拟化的通用体系结构。
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Pub Date : 2007-06-21DOI: 10.1109/WISES.2007.4408506
F. Scheler, M. Mitzlaff, Wolfgang Schröder-Preikschat, Horst Schirmeier
Model driven development gains more and more relevance for the development of hard real-time systems as it eases subsequent certification. Whereas generating the application source code from such models no longer is uncommon thanks to the research of the last years, targeting a specific operating system with an application still is done by hand. This significantly restrains flexibility and reuse within the development of real-time systems, as often assumptions on the underlying operating system are hard-coded within the application. Consequently we come up with a compiler-based approach to automatically map real-time applications coded for a specific operating system to other operating systems offering different abstractions (e.g. time-triggered vs. event-triggered execution). This compiler-based approach is enabled by an operating system independent intermediate representation, which allows to flexibly combine different operating system specific front-and back-ends.
{"title":"Towards a Real-Time Systems Compiler","authors":"F. Scheler, M. Mitzlaff, Wolfgang Schröder-Preikschat, Horst Schirmeier","doi":"10.1109/WISES.2007.4408506","DOIUrl":"https://doi.org/10.1109/WISES.2007.4408506","url":null,"abstract":"Model driven development gains more and more relevance for the development of hard real-time systems as it eases subsequent certification. Whereas generating the application source code from such models no longer is uncommon thanks to the research of the last years, targeting a specific operating system with an application still is done by hand. This significantly restrains flexibility and reuse within the development of real-time systems, as often assumptions on the underlying operating system are hard-coded within the application. Consequently we come up with a compiler-based approach to automatically map real-time applications coded for a specific operating system to other operating systems offering different abstractions (e.g. time-triggered vs. event-triggered execution). This compiler-based approach is enabled by an operating system independent intermediate representation, which allows to flexibly combine different operating system specific front-and back-ends.","PeriodicalId":319643,"journal":{"name":"2007 Fifth Workshop on Intelligent Solutions in Embedded Systems","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115211992","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}
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