An infrastructure of Bluetooth and/or Wi-Fi enabled RF tags or beacons deployed within a structure, an urban environment, a residence, buildings, real estate property, in a parking area, etc. The deployed beacons can be integrated with sensors to initiate or trigger an application. The infrastructure being used to recognize a presence of a user within the area to trigger activities, initiate Location Based Services (LBS), provide navigation, provide mapping, convey of information, initiate a link to a server or software, provide support during an emergency, provide assist to E-911 services, trigger an automation function, provide real estate information, and the like.

The invention proposes a transmitter (such as a gateway or base station, both indoors and outdoors) that actively creates multiple virtual anchors which are associated with certain known reflectors by means of a code, to allow low-capability receivers to be localized more easily. By measuring propagation features, such as, e.g., timing of receipt, of three or more coded beams, low capability receiverseven those with only a single antennacan be localized, e.g., by the transmitter or by the receivers themselves. The receivers might localize themselves if each beam includes e.g. the location of the anchors, the location of transmitter, and the sending time. This has the advantage that the receivers do not have to send any information back to the transmitter.

The invention proposes a transmitter (such as a gateway or base station, both indoors and outdoors) that actively creates multiple virtual anchors which are associated with certain known reflectors by means of a code, to allow low-capability receivers to be localized more easily. By measuring propagation features, such as, e.g., timing of receipt, of three or more coded beams, low capability receiverseven those with only a single antennacan be localized, e.g., by the transmitter or by the receivers themselves. The receivers might localize themselves if each beam includes e.g. the location of the anchors, the location of transmitter, and the sending time. This has the advantage that the receivers do not have to send any information back to the transmitter.

An apparatus for tracking hand hygiene in a bathroom includes at least a radio and a controller. The radio is configured to receive a direct connection probe from a mobile device. The controller is configured to receive sensor data associated with hand hygiene and match the sensor data associated with hand hygiene with an identifier for the mobile device based on the direction connection probe to determine whether a hand hygiene threshold is met.

An autonomous vehicle for use with an autonomous delivery service that facilitates a service delivery includes: a beacon receiver configured to receive a wireless homing beacon transmitted from a beacon device as a radio frequency (RF) signal that designates a desired delivery location at a service address selected by a subscriber, wherein the wireless homing beacon is modulated by beacon data that identifies the subscriber and includes a pseudo random code sequence generated by a code generator that is recognized by the autonomous vehicle to authenticate the delivery; and wherein the wireless homing beacon is received by the beacon receiver to facilitate the service delivery to the subscriber by the autonomous vehicle at the desired delivery location at the service address selected by the subscriber; an image capture device configured to generate delivery image data captured after the service delivery; and a transmitter configured to transmit the delivery image data captured after the service delivery.

In an embodiment a real-time location method includes sending and receiving ultra-wideband frames using an exchange protocol based on an ultra-wideband frame format, wherein the exchange protocol defines a location rate frame format including a beacon section having a series of time slots associated to at least one frame of interleaved pairs of beacon frames, wherein a first beacon frame and a second beacon frame of each pair are separated in time by a master time delay, and wherein, between time slots assigned to the beacon frames of an opening pair having an initial one of the beacon frames within the beacon section, an array of time slots is respectively assigned to the first beacon frames of the remaining pairs, and a tag response section including a sequence of time slots associated to tag response frames.

The following generally relates to using Augmented Reality (AR) to enhance the in-vehicle experience. In some examples, AR techniques are applied to provide AR indications of vehicle safety indicia to alert vehicle occupants to information that may not otherwise be perceptible. In other example, AR techniques are applied to provide emergency vehicle warnings to improve the likelihood of safe responses thereto. In yet other examples, AR techniques are applied to generated personalized outdoor displays, for example, to ameliorate conditions that may impair safe operation of a vehicle.

A method is disclosed. In various examples, the method may include receiving an instruction for generating a ranging signal, and transmitting the ranging signal at least partially responsive to the instruction. In various examples the ranging signal may be transmitted via a terrestrial transmitter for transmitting radio waves having encoded messaging information and timing information for one or more of positioning, navigation and timing. In various examples, the ranging signal may exhibit a first ranging pulse and a second ranging pulse of a pulse group and an encoded transmitter identifier, the transmitter identifier encoded by modulating an inter-pulse interval defined between a start of the first ranging pulse and a start of the second ranging pulse.

A controller is configured or programmed to cause a first memory to store, for a period of time, piece(s) of identification information included in wireless signal(s) transmitted from transmitter(s) in or on attachment(s) and received by a receiver in or on a working vehicle, when one of the attachment(s) is attached to a hitch, select a piece of identification information of the attachment attached to the hitch from the piece(s) of identification information stored in the first memory and start a predetermined process according to the selected piece of identification information, and even if the receiver receives wireless signal(s) before the attachment is allowed to be detached from the hitch, continue to perform the predetermined process without performing selection of a piece of identification information again.

In accordance with at least one aspect of this disclosure, a real time location services (RTLS) system, comprises one or more location anchor beacons configured to output a location anchor signal indicative of a location of the location anchor beacon in a physical space. One or more readers are configured to receive an asset tag signal from one or more asset tag beacons which are configured to receive the location anchor signal from the one or more location anchors. A location module is configured to receive the asset tag signal and to determine a physical location of the one or more asset tag beacons based on information indicative of a proximity to one or more of the one or more location anchor beacons included in the asset tag signal.