Platform for surface flow measurements with the smartphone.
The Android-based Discharge app is a non-intrusive, optical flow measurement tool, suited for natural water streams, irrigation furrows, water channels and sewer drainage systems. The app is fully integrated in the web platform ‘discharge.ch’. At dedicated measurement sites the app can accurately determine water level and discharge. The discharge is calculated either via rating curve, or via surface velocity that is measured by the app. All calculations are performed directly on the smartphone, such that the app can operate in offline mode. An operational site requires 4 reference markers, inter-marker distances and a known cross-sectional profile.
The Discharge web platform discharge.ch is designed for large scale acquisition of hydrometric and meteorological data. The user can navigate through measurements, graphs and proof images. Site properties can be edited either via app or web platform and updates are pushed immediately to all registered devices. Sites may be grouped into organizations. State of the art tools and intuitive usability facilitate administrational aspects user and organization management.