Connected environments (e.g., smart buildings and cities) have attracted various research efforts over the last few years (e.g., data modeling, sensor evolution, network and data management). In this work, we focus on querying such connected environments. Although Event Query Languages (EQL) have been used to define/detect events in these environments, we address here some of their limitations regarding: (i) proposing various query types for defining/handling connected environment components; (ii) considering environment, sensor network, and application domain components; (iii) considering various data and datatypes (e.g., scalar, multimedia); (iv) proposing query operators that deal with spatial/temporal distributions; and (v) coping with the dynamicity of the environments. To do so, we propose an EQL specifically designed for connected environments. We describe its framework, language, syntax, and queries. Finally, we illustrate its usage on a web platform for connected environment management (OpenCEMS).

过去的几年中，互联环境（例如，智能建筑和城市）吸引了各种研究工作（例如，数据建模，传感器演进，网络和数据管理）。在这项工作中，我们专注于查询这样的连接环境。尽管已经在这些环境中使用事件查询语言（EQL）来定义/检测事件，但我们在此解决了有关以下方面的一些限制：（i）提出各种用于定义/处理连接的环境组件的查询类型；（ii）考虑环境，传感器网络和应用程序域组件；（iii）考虑各种数据和数据类型（例如标量，多媒体）；（iv）提出处理空间/时间分布的查询运算符；（v）应对环境的动态变化。为此，我们提出了专门为连接环境设计的EQL。我们描述其框架，语言，语法和查询。最后，我们说明了其在Web平台上用于连接环境管理（OpenCEMS）的用法。