Preliminary Investigation of Detecting Events of Indoor Objects with Smartphone Active Sound Sensing

摘要

Smartphone companies release new smartphones equipped with latest technologies every year. With new features being added to each new release, users tend to upgrade their smartphones frequently. After replacing the old smartphone with a new one, the old phone is then either recycled or left unused at homes. These smartphones are usually equipped with high quality speakers and high sensitive multiple microphones. We believe that we can detect indoor events by using these parts of retired smartphones. In this paper, we propose an indoor event detection method with the ability of not only detecting door events such as door openings and closings but also differentiating between the door events of two separate doors based on active sound sensing using a smartphone placed in an environment of interest.