Localization using internet of things devices

A computer-implemented method, comprising:

• controlling probing devices to measure signal strengths from a plurality of Internet of Things (IoT) devices in and associated with a building that has a building identifier and an address;
• accessing global positioning system (GPS) locations of the probing devices;
• based on the GPS locations of the probing devices and the signal strengths measured by the probing devices, determining locations of the plurality of IoT devices;
• based on the locations of the plurality of IoT devices, generating building geometries that are representative of various parts of the building including an interior, an exterior, boundaries, sections, rooms, hallways, corridors, staircases, elevator shafts, or floor levels;
• selecting a location of an IoT device of the plurality of IoT devices as an anchor point location for a building topology model;
• generating the building topology model using the building geometries and from a perspective of the anchor point location;
• determining that an additional IoT device is located in the building;
• controlling the probing devices to measure an additional signal strength from the additional IoT device;
• based on the GPS locations of the probing devices and the additional signal strength measured by the probing devices, determining an additional location of the additional IoT device;
• based on the additional location of the additional IoT device, generating additional building geometries that are representative of other parts of the building not included in the various parts of the building;
• generating an updated building topology model using the building geometries and the additional building geometries and from the perspective of the anchor point location;
• detecting a presence of a user device in the building;
• identifying a subset of IoT devices of the plurality of IoT devices and the additional IoT device with which the user device is communicating;
• receiving signal strength measurements from the subset of IoT devices based on communications between the subset of IoT devices and the user device;
• receiving sensor data from the subset of IoT devices and the user device;
• determining a location of the user device based on (i) signal strength triangulation of the signal strength measurements from the subset of IoT devices, (ii) the sensor data, (iii) the additional location of the additional IoT device, and (iv) the locations of the IoT devices;
• and
• based on the location of the user device, determining coordinates of the user device in the updated building topology model.

A system, comprising:

• one or more non-transitory storage mediums configured to provide stored computer-readable instructions, the one or more non-transitory storage mediums coupled to one or more processors, the one or more processors configured to execute the computer-readable instructions to cause the one or more processors to:
• measure signal strengths from a plurality of Internet of Things (IoT) devices in and associated with a building that has a building identifier and an address;
• based on the signal strengths, determine locations of the plurality of IoT devices;
• based on the locations of the plurality of IoT devices, generate building geometries that are representative of various parts of the building including an interior, an exterior, boundaries, sections, rooms, hallways, corridors, staircases, elevator shafts, or floor levels;
• select a location of an IoT device of the plurality of IoT devices as an anchor point location for a building topology model;
• generate the building topology model using the building geometries and from a perspective of the anchor point location;
• determine that an additional IoT device is located in the building;
• measure an additional signal strength from the additional IoT device;
• based on the additional signal strength, determine an additional location of the additional IoT device;
• based on the additional location of the additional IoT device, generate additional building geometries that are representative of other parts of the building not included in the various parts of the building;
• generate an updated building topology model using the building geometries and the additional building geometries and from the perspective of the anchor point location;
• detect a presence of a user device in the building;
• identify a subset of the IoT devices of the plurality of IoT devices and the additional IoT device with which the user device is communicating;
• receive signal strength measurements from the subset of IoT devices based on communications between the subset of IoT devices and the user device;
• receive sensor data from the subset of IoT devices and the user device;
• determine a location of the user device based on (i) signal strength triangulation of the signal strength measurements from the subset of IoT devices, (ii) the sensor data, (iii) the additional location of the additional IoT device, and (iv) the locations of the IoT devices;
• and
• based on the location of the user device, determine coordinates of the user device in the updated building topology model.