The application provides a non-invasive
window opening angle monitoring device and method based on
magnetic sensing. The device converts the
window opening movement into in-plane rotation of the
guide tube and axial reciprocating sliding of the plug-in sliding shaft through the
mechanical transmission module installed between the window sash and the window frame. The
magnetic sensing module fixed on the wall side detects the
magnetic field change
signal generated by the rotating
magnet in real time. The
signal is calculated by the
microcontroller integrated in the single control and communication module. Based on the geometric parameters such as the relative distance of the key module installation and the rotation angle
signal, the actual opening angle is accurately calculated, and the data with time stamp is uploaded to the cloud
Internet of Things platform through the
wireless communication unit to realize online remote monitoring and analysis of the
window opening behavior. The application has simple structure, clear module composition and can realize high-precision and continuous opening degree monitoring. The structure of the application is suitable for green buildings and is used for accurately obtaining user behavior data and predicting building indoor
energy consumption.