Patent ID: 11871311
Assignee: FOUNDATION MONITORING SYSTEMS, LLC
Field: Digital communication (Electrical engineering)
Classification: CPC H  E | IPC E  H

Claim 10:
11. A method comprising:
placing a receiver on a platform off of a foundation of a building, the platform stable relative to the foundation and comprising a frame of reference;
placing an elevation sensor on the foundation;
broadcasting, from the elevation sensor to the receiver, a first signal representing an elevation measurement of the elevation sensor;
generating, by the receiver based on the first signal and the frame of reference, a second signal representing an elevation change of the elevation sensor, relative to the frame of reference;
transmitting the second signal to a central station;
repeating broadcasting, generating, and transmitting at a time interval to generate a plurality of second signals, wherein the plurality of second signals represents a plurality of different elevation measurements of the elevation sensor; and
transmitting, to the central station, the plurality of different elevation measurements of the elevation sensor.