The development of more efficient communication technologies and the affordability of powerful hardware platforms have brought the smart cities prospects to a more realistic setting. Actually, this promising scenario has fostered the development of different monitoring and control applications aimed at improving the quality of life in modern urban areas, often implemented through sensors and actuators networks. Nevertheless, multiple concurrent sensing applications may have different levels of criticality according to the impact of the performed tasks for the protection of people’s integrity and thus they should be treated in different ways. This article then proposes a prioritization approach to guide the development of sensors-based applications in smart city scenarios, which will be differentiated based on their monitoring objectives, some contextual prioritization parameters and the detection of critical events. This approach will also define security mechanisms to ensure that all sensor nodes will follow the defined prioritization policies for the considered smart cities. Besides simulation results, the proposed definitions and mechanisms were completely implemented for additional validation, resulting in a set of codes to facilitate the construction of practical sensor applications based on the proposed approach.

更加高效的通信技术的发展以及强大硬件平台的可承受性使智慧城市的前景更加现实。实际上，这种有希望的场景促进了各种监视和控制应用程序的开发，这些应用程序通常通过传感器和执行器网络来实现，以改善现代城市地区的生活质量。然而，根据所执行任务对保护人员完整性的影响，多个并发传感应用程序可能具有不同的关键级别，因此应以不同的方式对待它们。然后，本文提出了一种优先方法来指导智慧城市场景中基于传感器的应用程序的开发，该方法将根据其监视目标进行区分，一些上下文优先级参数和关键事件的检测。此方法还将定义安全机制，以确保所有传感器节点都将遵循针对考虑的智能城市定义的优先级策略。除了仿真结果外，还完全实现了所提出的定义和机制以进行额外的验证，从而产生了一组代码，以促进基于所提出方法的实际传感器应用程序的构建。