Patent classifications
G01S1/04
Transmission of luminaire maintenance information
The systems and method disclosed herein include a LCom-enabled luminaire configured to transmit a maintenance trigger encoded in an LCom signal in response to detecting an error or maintenance condition in the LCom-enabled luminaire, receive an access request, transmit maintenance information in response to the access request, and receive correction information to correct the error or maintenance condition. The systems and methods further include a receiver device configured to receive the maintenance trigger, generate the access request based on the maintenance trigger, transmit the access request to the LCom-enabled luminaire, receive maintenance information in response to the access request, and transmit control commands based on the maintenance information.
Methods and systems for determining vertical location in enclosed spaces
Determining a vertical location of a hand-held computing device. At least some of the example embodiments are computer-implemented methods including: generating an estimate of expected vertical location based on items of beacon data received from beacons by a radio receiver of the hand-held computing device, generating an error covariance of the estimate of expected vertical location based on the items of beacon data, calculating a level normalized change based on measurements of barometric pressure by a pressure sensor of the hand-held computing device, calculating the vertical location of the hand-held computing device based on the level normalized change, the error covariance of the estimate of expected vertical location, and the estimate of expected vertical location, and activating a relevant map for a level comprising the vertical location and displaying the vertical location on a display device of the hand-held computing device.
COMMUNICATION SYSTEM DETERMINING TIME OF ARRIVAL USING MATCHING PURSUIT
A wireless receiver receives location pilots embedded in received symbols and uses the location pilots to detect the first path for every base station the network has designated for the receiver to use in time of arrival estimation. The receiver preferably applies matching pursuit strategies to offer a robust and reliable identification of a channel impulse response's first path. The receiver may also receive and use estimation pilots as a supplement to the location pilot information in determining time of arrival. The receiver can use metrics characteristic of the channel to improve the robustness and reliability of the identification of a CIR's first path. With the first path identified, the receiver measures the time of arrival for signals from that path and the receiver determines the observed time difference of arrival (OTDOA) to respond to network requests for OTDOA and position determination measurements.
Systems and Method for Aligning Augmented Reality Display with Real-Time Location Sensors
A method for aligning displayed data in an augmented reality (AR) display includes determining a selected location context associated with a piece of equipment, determining a process element associated with the piece of equipment and according to a selected engineering process, determining, according to a digital representation of the equipment, a first location of the process element, receiving meta-sensor location data for one or more meta-sensors in the piece of equipment and indicating a second location for each of the meta-sensors with respect to the selected location context, determining a third location of the AR display with respect to the selected location context, determining overlay data for the process element, determining a display location according to the first location, the third location and the location data of each meta-sensor, and displaying the overlay data at the display location.
Terrestrial based positioning systems and methods
A terrestrial based positioning system includes a plurality of location anchors configured to transmit and receive ultra-wide band (UWB) signals. In another aspect, a location tag configured to transmit and receive UWB signals uses signals transmitted by location anchors to determine its current position. In some implementations, a location tag may use Global Positioning System (GPS) signals or a combination of UWB and GPS signals to determine a current location. The location anchors are organized into zones used by the locations tags to determine a current position based in UWB signals. In some implementations, the locations anchors automatically create the necessary zones. Location anchors may also automatically determine the position of other location anchors. In yet other implementations, the location anchors relay data transmitted by a location tag. In addition, a location anchor may transmit GPS signals that can be used by standard GPS receivers.
SYSTEMS AND METHODS FOR PROVIDING LOCATION SERVICES
Methods and systems are disclosed for providing location services. Consistent with disclosed embodiments, disclosed systems and methods may include a beacon registering device for providing location services. The beacon registering device may include a non-transitory memory storing instructions. The beacon registering device may also include one or more processors that execute the stored instructions to perform operations comprising: receiving beacon information, the beacon information comprising connection information for a first beacon; updating at least one beacon entry stored in a database based on the received beacon information, the beacon entry including a beacon location, beacon connection information, and beacon metadata; receiving a beacon request from a user device, the beacon request indicating a user location; selecting beacons based on the beacon entry and the beacon request, the selected beacons including at least the first beacon; providing selected beacon information to the user device for registering the first beacon with the user device, the selected beacon information including the connection information for the first beacon.
Beacon-based position awareness system
A system comprising: a transmitting device configured to transmit, in at least one plane, a plurality of directional signals each covering an angular sector, wherein every adjacent pair of said angular sectors overlaps partially to create a logical sector, and wherein each of said plurality of directional signals encodes at least an indication regarding each said logical sector associated therewith; and a client device comprising program instructions executable by at least one hardware processor to: cause the client device to receive at least some of said plurality of directional signals, calculate a signal strength level (RSL) value for each of said received directional signals, and determine that said client device is located within a said logical sector, when two highest said RSL values (i) are related to two said directional signals associated with said logical sector, and (ii) are within a specified value range of each other.
Luminaire having a beacon and a directional antenna
An apparatus, method, and system, the apparatus including a housing; a light source, disposed in the housing, including at least one source of illumination; a radio frequency (RF) transmitter located on or in the housing; and at least one directional radiating element at least partially enclosed by the housing and coupled to RF transmitter, the at least one directional radiating element directing a RF signal transmitted by the RF transmitter in a predetermined direction away from the housing.
Apparatus and method for mitigating interference when phase ranging among beacons and tags
A communications system, including at least one tag and a plurality of beacons. The tags are configured to detect beacon advertisement messages, initiate a connection with at least one of the plurality of and transmit a Constant Tone (CT) to the at least one of the plurality of beacons. The tag is further configured to determine a location thereof based on the sampled CT from both the beacon and the tag and then report the location via the one of the beacons and/or an access point. Phase ranging mitigation techniques which include hop duplication, hop interpolation and ADC DC offset correction are employed so as to provide more accurate ranging values even in the case where there are many other devices in local proximity and which are competing for use of the same RF channels as those used by the tags and beacons.
Supporting a configuration of a device
A positioning support device transmits radio signals using at least one default configuration parameter value. A mobile device measures characteristics of the signals at different locations. An apparatus assembles, based on the measured characteristics and indications of the locations of measurement, data which enables a determination of characteristics of radio signals transmitted by the positioning support device, which are expected to be observable at different locations. The apparatus determines in addition at least one adapted configuration parameter value and causes the positioning support device to store the assembled data for future transmissions and to use the at least one adapted configuration parameter value for future transmissions. As a result, the positioning support device transmits radio signals including the stored data using the at least one adapted configuration parameter value.