ABSTRACT In six corridors of a high-rise apartment building, light emitting diode (LED) luminaires were installed that dim to a low output when vacant (“bilevel”). Energy impacts were studied for three delay time settings. Occupant acceptance was compared to the conventional, fixed-output fluorescent lighting in use before the retrofit. Occupants had positive feedback and comments about the bilevel dimming of their corridor lighting. Luminaires programmed with the shortest sensor delay time (5 min) operated at high output for less time (22%) compared to those programmed with longer (15 min) delay times (31%). This resulted in 14% less energy use for the short delay time setting compared to the long delay time setting. Regardless of delay times, proximity to elevator lobbies increased the amount of time luminaires were at high output and therefore reduced energy savings. However, even in busy elevator lobbies, use of sensors to create bilevel control required about half as much energy as merely upgrading to fixed-output LEDs.

中文翻译：

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高层住宅楼中的传感器控制走廊照明：占用模式、调光节能和占用者接受度

摘要在一栋高层公寓楼的六个走廊中，安装了发光二极管 (LED) 灯具，在空置时会变暗至低输出（“双层”）。研究了三种延迟时间设置的能量影响。将居住者接受度与改造前使用的传统固定输出荧光灯进行了比较。住户对走廊照明的双层调光有积极的反馈和评论。与使用较长（15 分钟）延迟时间（31%）编程的灯具相比，使用最短传感器延迟时间（5 分钟）编程的灯具在高输出下运行的时间更短（22%）。与长延迟时间设置相比，短延迟时间设置的能耗减少了 14%。无论延迟时间如何，靠近电梯大堂会增加灯具处于高输出的时间，从而减少节能。然而，即使在繁忙的电梯大厅中，使用传感器来创建双层控制所需的能量也只有升级到固定输出 LED 所需的能量的一半左右。