Energy-saving potential in lighting is significant in office buildings due to their primary occupancy during the daytime. This potential can be realised with an advanced daylighting system being particularly able to deliver more uniform and steadier illumination. This paper presents prototyping and experimental validation of an automated louver with parametrically-angled reflective slats, in order to reflect sunlight to evenly distributed target positions on a ceiling. The illuminated ceiling acts as a source of diffuse light to the room. The physical rotation of the automated louver is controlled parametrically using Grasshopper software together with Arduino board, motors for the motion and illuminance sensors. Validation is an essential stage to ensure the performance of such systems. Two prototypes of the proposed system with different scales are presented, 1:20 and 1:1 scaled mock-ups. The monitoring results verify the principle and aim of the proposed design, i.e., more uniform and distributed daylight illumination, automation control method besides its practicality.

中文翻译：

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带有创新参数角度反射板条的自动化百叶窗：通过使用 Grasshopper 中的参数控制和 Arduino 板进行原型设计和验证


由于办公楼主要在白天使用，因此照明的节能潜力非常显着。这种潜力可以通过先进的采光系统来实现，该系统特别能够提供更均匀和更稳定的照明。本文介绍了带有参数角度反射板条的自动百叶窗的原型设计和实验验证，以便将阳光反射到天花板上均匀分布的目标位置。照明天花板充当房间的漫射光源。自动百叶窗的物理旋转通过 Grasshopper 软件以及 Arduino 板、运动和照度传感器电机进行参数化控制。验证是确保此类系统性能的重要阶段。展示了所提出系统的两个不同比例的原型，即 1:20 和 1:1 比例的模型。监测结果验证了所提出设计的原理和目的，即日光照明更加均匀、分布、自动化控制方法除了实用性之外。