Patent ID: 8415897
Filing Date: 2013-04-09
Classification: H05B,Y02B

Abstract:
1. A system, comprising: a plurality of task-level sensor devices, each task-level sensor device including a sensor device that can sense physical stimuli and to be positioned to monitor a physical stimulus of a task area and generate task-level sensor data that reports a measured physical stimulus of the task area, wherein each task area for each task-level sensor device is a separate sub-portion of a controlled area, and each task-level sensor data provides measurements that are proportionally responsive to only the physical stimulus occurring within the task area it monitors; and a load controller in data communication with the task-level sensor devices and a controlled area sensor, the controlled area sensor for monitoring the physical stimulus of the controlled area and generating controlled area sensor data that reports a measured physical stimulus of the controlled area, wherein the load controller performs operations comprising controlling the illumination level of each task area based on the task-level sensor data from the task-level sensor device monitoring the task area and the controlled area sensor data; for each task area, a corresponding task area light source for illuminating only the task area to which it corresponds; and an ambient light source, the ambient light source for illuminating the controlled area, and wherein the sensors included in the task-level sensor devices comprise a task-level occupancy sensor and a task-level photo sensor, physical stimuli of the task areas include an occupancy of a task area and an illumination level of a task area, the controlled area sensor comprises a controlled area photo sensor, the physical stimulus of the controlled area is an illumination level of the controlled area, and the load controller controls the illumination level of each task area by performing operations comprising: