A Modular Distributed IoT Service Discovery
A Modular Distributed IoT Service Discovery
复制标题
模块化分布式物联网服务发现
DOI：
--
复制
发表时间：
2019
期刊：
影响因子：
--
通讯作者：
Stefan Liebald
中科院分区：
文献类型：
--
作者：
Marc;Stefan Liebald
物联网（IoT）由联合实施用例的分布式实体组成。在其应用程序的驱动下，分布式的物联网服务动态提供了复杂的功能。服务组成的基本要求是发现。物联网需要一种语义丰富，动态扩展，低复杂性服务发现机制。现有的机制无法传递此功能。我们提供了服务属性的分布式模块化目录。可以在运行时扩展。将我们所谓的搜索提供商目录结合在一起，形成了物联网。随着新颖的模块化，我们的简单目录将复杂的本体论融合在一起。我们引入了一个查询联合机制。基于一阶逻辑，它可以在简单的搜索提供商上映射复杂的语义查询。我们评估有关延迟和可用性的原型。
The Internet of Things (IoT) consists of distributed entities that federate to implement use cases. Driven by its applications, distributed IoT services federate dynamically to deliver complex functionality.A fundamental requirement for service composition is discovery. The IoT requires a semantically-rich, dynamically extensible, low complexity service discovery mechanism. Existing mechanisms fail in delivering this functionality.We present a distributed modular directory of service properties. It can be extended at runtime. Combined our so-called search provider directories form an IoT ontology. With the novel modularization, our simple directories mash-up to a complex ontology. We introduce a query federation mechanism. Based on first-order logic it enables mapping complex semantic queries on the simple search providers. We evaluate our prototype regarding latency and usability.