提高绿色智慧城市信息代理弹性和性能的创新方法

Víctor Rampérez, J. Soriano, D. Lizcano, J. Lara
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引用次数: 1

摘要

智慧城市愿景旨在利用最先进的物联网(IoT)技术来支持增值服务,以缓解城市人口增长带来的问题。如今,污染是这些问题中最令人担忧的问题之一,因为它对生物体的健康有直接的和有记录的影响。然而,为了使城市变得“智能”,有一些限制需要克服,例如大多数消息代理的性能和可扩展性问题,它们是物联网和智慧城市环境的基石。在本文中,我们提出了一种创新的上下文代理设计,它内部依赖于一个专门设计为弹性的上下文感知的基于内容的发布-订阅(CA-CBPS)中间件。该解决方案遵循fiwa - ngsi v2(下一代服务接口)规范,可以跨物联网平台管理上下文信息的整个生命周期。此外,我们提出了一个用例,使用该规范通过光度计网络监测天空亮度,作为减少和减轻光污染的第一步。最后,我们通过评估来演示所提议的代理如何克服FIWARE IoT平台的上下文代理(Orion)的当前参考实现的性能和弹性限制,两者都实现了上述相同的规范。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
An Innovative Approach to Improve Elasticity and Performance of Message Brokers for Green Smart Cities
The smart cities vision aims at exploiting the most advanced Internet of Things (IoT) technologies to support added-value services for the mitigation of the problems generated by the urban population growth. Nowadays, pollution, is one of the most worrying of these problems due to its direct and documented impact in the health of living organisms. However, in order to make cities "smart", there are some limitations to overcome such as the performance and scalability problems of the majority of the message brokers, which are the cornerstone of IoT and Smart City environments. In this paper we present an innovative design of a context broker which relies internally on a context-aware content-based publish-subscribe (CA-CBPS) middleware specifically designed to be elastic. This solution follows the FIWARE-NGSI v2 (Next Generation Service Interfaces) specification to manage the entire life cycle of context information across an IoT platform. Additionally, we present a use case using that specification for monitoring sky brightness with a network of photometers, as a first step to reduce and mitigate light pollution. Finally we demonstrate with an evaluation how the proposed broker overcomes the performance and elasticity limitations of the current reference implementation of the FIWARE IoT Platform's context broker (Orion), both implementing the same specification above mentioned.
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