Collecting and maintaining information about all sources of RF radiation within commercial and public structures in a computer database. In one aspect this is a living database consisting of millions of structures including their associated RF transmitting devices and unique characteristics. The database includes energy transmissions information including site specific physical locations, building layouts including all interior floorplans; and the exact positions of all sources of RF radiation located on floorplans, including their vertical positions and utilization characteristics. The System can deliver MPE maps of radio frequency radiation and site specific safety programs to anyone working in or visiting a commercial and public structure containing wireless transmitters in the United States. These maps and site specific safety programs are updated daily. The System can be accessed via the Internet by registered users. The System creates and displays MPE maps and radiation patterns showing gradation power densities to identify exposure dangers.

A method for mapping a surface using signals transmitted from a single transmitter comprises: receiving signals transmitted from the single transmitter, where each signal has a different propagation path; determining a motion of an antenna of the receiver; generating phasor sequences, where each phasor sequence represents a hypothesis based on antenna motion and a direction of arrival estimate for each received signal; compensating the received signals, local signals, or correlation results from correlating the received signals with the local signals using the phasor sequences based on the hypotheses to generate compensated correlation results; determining a preferred hypothesis in the hypotheses for each received signal that optimizes each correlation result; identifying a direction of arrival for each received signal using the determined hypothesis; determining a point of reflection from the direction of arrival of each received signal; and combining the points of reflection into one or more reflective surfaces.

A mobile computing device includes: a tracking sensor; a rangefinder; and a controller configured to: based on data from the tracking sensor, determine a current pose of the mobile computing device in a facility coordinate system, the facility containing a target wireless transmitter at an installed position; receive a transmission from the target wireless transmitter, containing an identifier of the target wireless transmitter; receive, from the rangefinder, a range value indicating a distance between the current pose and the target wireless transmitter; correlate the identifier with the range value, based on a property of the transmission; generate a location defining the installed position in the facility coordinate system, based on the current pose and the range value; and store the generated location in association with the identifier.

System and methods and computer program code are provided to perform a commissioning process comprising capturing, using an image capture device, an image of an area containing at least a first fixture, identifying location and positioning information associated with the image, performing image processing of the image to identify a location of the at least first fixture in the image, and converting the location of the at least first fixture in the image into physical coordinate information associated with the at least first fixture.

A system to assist in monitoring and improving services in hotels, motels and other lodging facilities. The system includes a plurality of fixed-location wireless devices that are situated throughout the facility and each service provider or asset to be monitored or tracked is provided with a cooperating mobile wireless device. The mobile devices may periodically transmit beacons that are received by the fixed location devices. The system may determine location based on evaluation of signal strength across a plurality of fixed devices. The system may include premapped calibration data on signal strength to assist in determining location. The location information may help to assess employee performance, to assist in improving performance and to provide improved services. The system may also interact with an application running on a hotel guest's electronic device to allow the system to track guest location. Guest location information can be used to provide improved guest services.

This specification describes a method comprising causing a trackable device to transition between a first positioning mode and a second positioning mode, wherein, in the first positioning mode, the trackable device causes wireless transmission of one or more data packets each including a data portion for enabling determination of a bearing between the trackable device and a locator device and, in the second positioning mode, the trackable device causes wireless transmission of one or more data packets which do not include the data portion for enabling determination of the bearing between the trackable device and the locator device.

A system for creating and/or dynamically updating indoor positioning maps includes an augmented reality (AR) device and a computing device communicatively coupled to the AR device. The AR device has a display for displaying AR content to a user that overlaps the AR device's perspective view of an environment. The AR device also has one or more depth sensors for gathering mapping data of physical objects in the environment. The computing device has a processor that is configured by software to create a three-dimensional (3D) indoor positioning map of the environment in a building based on the mapping data gathered by the AR device, and/or dynamically update the 3D indoor positioning map of the environment in the building based on the mapping data gathered by the AR device.

At an emergency response system, a first location including a latitude and a longitude at which a first device is located is received. At an emergency response system, an air pressure reading measured by the first device is received. Using the air pressure reading and a mean sea-level barometric measurement, a first elevation of a device is computed. Using the first location, a corresponding street address is computed. Using the street address and the first elevation, a floor number is computed. The street address and the floor number are transmitted to a second device.

A system to assist in monitoring and improving services in hotels, motels and other lodging facilities. The system includes a plurality of fixed-location wireless devices that are situated throughout the facility and each service provider or asset to be monitored or tracked is provided with a cooperating mobile wireless device. The mobile devices may periodically transmit beacons that are received by the fixed location devices. The system may determine location based on evaluation of signal strength across a plurality of fixed devices. The system may include premapped calibration data on signal strength to assist in determining location. The location information may help to assess employee performance, to assist in improving performance and to provide improved services. The system may also interact with an application running on a hotel guest's electronic device to allow the system to track guest location. Guest location information can be used to provide improved guest services.

Systems and methods to position beacons at traffic choke points, use a mobile device to detect the peaks of beacon signals corresponding to the mobile device traveling through the traffic choke points, and thus determine accurately the position and speed of the mobile device in the transport corridor between the choke points. The determined position and speed of the mobile device can be used to improve the performance of other location determination technologies, such as radio frequency fingerprint-based location estimate and/or inertial guidance location estimate.