System and method for passive building information discovery

A system for passive building information discovery comprising:

• at least one processor configured to:
• receive communications from a plurality of Bluetooth Low Energy (BLE) sensors mounted in spaced-apart relation across a building, which communications include information detected by the BLE sensors from BLE signals from a plurality of portable devices that uniquely identify each portable device;
• track positions in the building of the portable devices over time based on the received communications;
• determine a first rate corresponding to how many of at least some of the portable devices pass a first location in the building in an amount of time based on the BLE signals;
• determine a second rate corresponding to how many of further of the portable devices pass the first location in the building in the amount of time based on the BLE signals;
• determine that the further portable devices are positioned in an unauthorized location in the building based at least in part on the second rate being higher than the first rate, and responsive thereto provide at least one notification regarding the determination about the unauthorized location.

A system for passive building information discovery comprising:

• at least one processor configured to:
• receive communications from a plurality of Bluetooth Low Energy (BLE) sensors mounted in spaced-apart relation across a building, which communications include information detected by the BLE sensors from BLE signals from a plurality of portable devices that uniquely identify each portable device;
• track positions in the building of the portable devices over time based on the received communications;
• track positions of a plurality of further devices over time based on information acquired from at least one further sensor in the building other than via BLE signals, which information uniquely identifies each further device;
• determine correlations between respective portable devices and respective further devices based on determinations that the respective portable devices and respective further devices are detected at common positions and times in the building;
• and
• determine when at least one of the portable devices is positioned in an unauthorized location in the building based at least in part on the determined correlations, and responsive thereto provide at least one notification regarding the determination about the unauthorized location.

A method for passive building information discovery comprising:

• through operation of at least one processor:
• receiving communications from a plurality of Bluetooth Low Energy (BLE) sensors mounted in spaced-apart relation across a building, which communications include information detected by the BLE sensors from BLE signals from a plurality of portable devices that uniquely identify each portable device;
• tracking positions in the building of the portable devices over time based on the received communications;
• based on the tracked positions, determining a first place in the building at which portable devices are not previously detected;
• based on the tracked positions, determining a second place in the building where portable devices are detected during a first time period and are not detected during a second time period during the day;
• detecting that at last one of the portable devices remains stationary in the first place during the first time period and moves to the second place during the second time period and responsive thereto determining that the at least one portable device is positioned in an unauthorized location in the building corresponding to the second place;
• and
• providing at least one notification regarding the determination about the unauthorized location.

A method for passive building information discovery comprising:

• through operation of at least one processor:
• receiving communications from a plurality of Bluetooth Low Energy (BLE) sensors mounted in spaced-apart relation across a building, which communications include information detected by the BLE sensors from BLE signals from a plurality of portable devices that uniquely identify each portable device;
• tracking positions in the building of the portable devices over time based on the received communications;
• determining a first rate corresponding to how many of at least some of the portable devices pass a first location in the building in an amount of time based on the BLE signals;
• determining a second rate corresponding to how many of further of the portable devices pass the first location in the building in the amount of time based on the BLE signals;
• determining that the further portable devices are positioned in an unauthorized location in the building based on the second rate being higher than the first rate;
• and
• providing at least one notification regarding the determination about the unauthorized location.

A method for passive building information discovery comprising:

• through operation of the at least one processor:
• receiving communications from a plurality of Bluetooth Low Energy (BLE) sensors mounted in spaced-apart relation across a building, which communications include information detected by the BLE sensors from BLE signals from a plurality of portable devices that uniquely identify each portable device;
• tracking positions in the building of the portable devices over time based on the received communications;
• tracking positions of a plurality of further devices over time based on information acquired from at least one further sensor in the building other than via BLE signals, which information uniquely identifies each further device;
• determining correlations between respective portable devices and respective further devices based on determinations that the respective portable devices and respective further devices are detected at common positions and times in the building;
• determining that at least one of the portable devices is positioned in an unauthorized location in the building based at least in part on the determined correlations;
• and
• providing at least one notification regarding the determination about the unauthorized location.

A non-transitory computer readable medium encoded with executable instructions that when executed, cause at least one processor to carry out a method comprising:

• receiving communications from a plurality of Bluetooth Low Energy (BLE) sensors mounted in spaced-apart relation across a building, which communications include information detected by the BLE sensors from BLE signals from a plurality of portable devices that uniquely identify each portable device;
• tracking positions in the building of the portable devices over time based on the received communications;
• based on the tracked positions, determining a first place in the building at which portable devices are not previously detected;
• based on the tracked positions, determining a second place in the building where portable devices are detected during a first time period and are not detected during a second time period during the day;
• detecting that at least one of the portable devices remains stationary in the first place during the first time period and moves to the second place during the second time period and responsive thereto determining that the at least one portable device is positioned in an unauthorized location in the building corresponding to the second place;
• and
• providing at least one notification regarding the determination about the unauthorized location.