High energy consumption of sensor devices is a major problem in smart building systems, since it strongly impacts the system lifetime. However, existing approaches are often fitted to a single monitoring application and rely on static configurations for sensor devices: optimization of their acquisition and transmission frequencies to actual multiple application requirements is not tackled. In this paper, we focus on energy-aware dynamic sensor device re-configuration to lower energy consumption while fulfilling real-time application requirements. We introduce the Smart-Service Stream-oriented Sensor Management (3SoSM) that binds together sensor configuration and management of sensor data streams. We present a multi-application monitoring system architecture that optimizes application requirements for data streams into sensor device configurations, and we relate the experiments with our experimental platform.