A building-rooftop remote-monitoring, alert-generation and notification system network configured for remote automated monitoring of the loading of the rooftop surface, including displacements, distortions and/or deformations of said rooftop surface, said building-rooftop remote-monitoring, alert-generation and notification system network comprising:
- a rooftop displacements distortion and/or deformation monitoring mode supporting automated generation of alerts when monitored rooftop displacements distortion and/or deformation exceeds rooftop surface deflection limits set for said building rooftop surface;
- a wireless communication infrastructure for supporting data communication between systems deployed on said building-rooftop remote-monitoring, alert-generation and notification system network;
- a plurality of GNSS satellites transmitting GNSS signals towards the earth and objects on said earth;
- a plurality of GNSS rover systems mounted on the rooftop surfaces of a building for receiving and processing transmitted GNSS signals during rooftop displacement, distortion and/or deformation monitoring operations supported over said building-rooftop remote-monitoring, alert-generation and notification system network, so as to produce corrected GNSS rover data for each said GNSS rover system, to improve position accuracy of each said GNSS rover system;
- wherein each said GNSS rover system has a base portion supported on the rooftop surface, and a housing portion with an aperture is supported above said base portion supported on said rooftop surface, and
- wherein a laser-based snow/water depth measurement instrumentation system is integrated into said housing portion, for projecting a laser beam through said aperture and measuring the depth of snow and/or water on the rooftop surface using said integrated laser-based snow/water depth measurement instrumentation system configured for measuring distance by time of flight of said laser beam over an extended period of time, for automated monitoring of snow and/or water depth on the rooftop surface, which can increase rooftop loading;
- one or more mobile computing systems for transmitting instructions and receiving alerts and notifications and supporting administrative and management functions on said building-rooftop remote-monitoring, alert-generation and notification system network,
- wherein each said mobile computing system includes a display surface on which graphical user interfaces (GUIS) are generated and displayed for (i) enabling the user to set rooftop surface deflection limits for said rooftop surface, and snow and/or ponding depth thresholds set by the user for snow and/or water on said building rooftop, that are automatically detectable by said building-rooftop remote-monitoring, alert-generation and notification system network, and (ii) delivering messages and notifications to the user concerning (a) conditions detected on said rooftop surface by said building-rooftop remote-monitoring, alert-generation and notification system network, (b) snow/water depth measurements performed using said laser-based snow/water depth measurement instrumentation system integrated into said housing portion, and (c) instructions directing removal of snow covering and/or water pooling over specified regions of said rooftop surface;
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- web, application and database servers for generating a web-based graphical user interfaces (GUIs), performing calculations, and reading/writing and processing of data on said building-rooftop remote-monitoring, alert-generation and notification system network, and generating alerts and transmitting notifications to said mobile computing systems;
- wherein said GNSS signals received and corrected by said GNSS rover system are automatically processed for automated monitoring of rooftop displacement, distortion and/or deformation, and generating an alert signal in response to detection of the displacement, distortion and/or deformation exceeding said rooftop surface deflection limits, and said alert signal being used for automatically generating a notification for transmission to and display on said mobile computing systems, wherein said notification includes the snow and/or water depth measurements detected about each said GNSS rover system using said laser-based snow/water depth measurement instrumentation system which is integrated into said housing portion of said GNSS rover system.