A system can be used with a drone delivery service that facilitates a service delivery via at least one drone delivery device. The system includes a code generator configured to generate beacon data that identifies a subscriber. A beacon generator is configured to generate a wireless homing beacon that indicates the beacon data, wherein the wireless homing beacon is detectable by the at least one drone delivery device to facilitate the service delivery to the subscriber by the drone delivery device at a location selected by the subscriber and a network interface is configured to communicate via a network. The system receives delivery image data captured after the service delivery by the drone delivery device.

A system can be used with a drone delivery service that facilitates a service delivery via at least one drone delivery device. The system includes a code generator configured to generate beacon data that identifies a subscriber. A beacon generator is configured to generate a wireless homing beacon that indicates the beacon data, wherein the wireless homing beacon is detectable by the at least one drone delivery device to facilitate the service delivery to the subscriber by the drone delivery device at a location selected by the subscriber and a network interface is configured to communicate via a network. The system receives delivery image data captured after the service delivery by the drone delivery device.

A safety system for localizing a movable machine having a safety controller, having at least one radio location system, and having at least one sensor for position determination, wherein the radio location system has radio stations arranged as stationary, wherein at least one radio transponder is arranged at the movable machine, wherein position data of the movable machine can be determined by means of the radio location system, wherein the position data can be transmitted from the radio station or from the radio transponder of the radio location system to the safety controller and position data of the movable machine can be determined by means of the sensor, and wherein the safety controller is configured to compare the position data of the radio location system and the position data of the sensor and to form checked position data on agreement.

A safety system for localizing a movable machine having a safety controller, having at least one radio location system, and having at least one sensor for position determination, wherein the radio location system has radio stations arranged as stationary, wherein at least one radio transponder is arranged at the movable machine, wherein position data of the movable machine can be determined by means of the radio location system, wherein the position data can be transmitted from the radio station or from the radio transponder of the radio location system to the safety controller and position data of the movable machine can be determined by means of the sensor, and wherein the safety controller is configured to compare the position data of the radio location system and the position data of the sensor and to form checked position data on agreement.

A train-position detection device includes: a radio-wave's angle-of-arrival calculator configured to calculate an angle of arrival of a radio wave on the basis of a reception signal received by an array antenna and a receiver; a position acquisition unit configured to acquire information on an installation position of a ground-based wireless communication apparatus from the reception signal; a train-position calculator configured to calculate a train position on the basis of a movement distance of a train; a correction-amount-to-train-position calculator configured to calculate a train-position correction amount, by using the calculated angle of arrival, the installation position of the ground-based wireless communication apparatus acquired by the position acquisition unit, and the calculated train position; and a train-position correcting unit configured to correct the calculated train position by using the train-position correction amount calculated by the correction-amount-to-train-position calculator.

An automated method is provided for activating a NFC application in a mobile interface device. In this method, the device receives from a beacon a wireless beacon signal comprising at least one beacon identifier. The wireless beacon signal is processed by the mobile interface device to determine the at least one beacon identifier. The mobile interface device determines based on the at least one beacon identifier, whether to activate the NFC application. Responsive to a determination that the NFC application should be activated, the mobile interface device transitions the NFC application from a passive state to an active state. NFC communication is then established between the mobile interface device and at least one NFC transmitting device disposed within a beacon range volume defined by the beacon location and the beacon range.

An automated method is provided for activating a NFC application in a mobile interface device. In this method, the device receives from a beacon a wireless beacon signal comprising at least one beacon identifier. The wireless beacon signal is processed by the mobile interface device to determine the at least one beacon identifier. The mobile interface device determines based on the at least one beacon identifier, whether to activate the NFC application. Responsive to a determination that the NFC application should be activated, the mobile interface device transitions the NFC application from a passive state to an active state. NFC communication is then established between the mobile interface device and at least one NFC transmitting device disposed within a beacon range volume defined by the beacon location and the beacon range.

An automated method is provided for activating a function in a mobile interface device using near field communication (NFC). In the method, the mobile interface device receives a sequence of NFC transmissions from one or more NFC transmitters. Each NFC transmitter has an associated identifier and each NFC transmission is triggered by a spatial interaction between the mobile interface device and one of the one or more NFC transmitters. The mobile interface device determines whether the sequence of NFC transmissions meets matching criteria for one of a plurality of predetermined transmission sequences. Responsive to a determination that the sequence of NFC transmissions meets matching criteria for one of the predetermined transmission sequences, the mobile interface device determines the predetermined function associated with the one of the predetermined transmission sequences and initiates the predetermined function.

An automated method is provided for initiating a transaction function in a transaction processing device. The method comprises establishing near field communication between the transaction processing device and an NFC transmitting device having an associated tag identifier and receiving NFC information including the tag identifier. The transaction processing device transmits the NFC information to a merchant processor and receives from the merchant processor a tag rule communication including an instruction to carry out a transaction function associated with the tag identifier or a request to associate a new transaction function with the tag identifier. Responsive to receiving an instruction to carry out a transaction function associated with the tag identifier, the transaction processing device executes the transaction function. Responsive to receiving a request to associate a new transaction function with the tag identifier, the transaction processing device transmits a request response to the merchant processor.

Head-mounted augmented reality (AR) devices can track pose of a wearer's head to provide a three-dimensional virtual representation of objects in the wearer's environment. An electromagnetic (EM) tracking system can track head or body pose. A handheld user input device can include an EM emitter that generates an EM field, and the head-mounted AR device can include an EM sensor that senses the EM field. EM information from the sensor can be analyzed to determine location and/or orientation of the sensor and thereby the wearer's pose. The EM emitter and sensor may utilize time division multiplexing (TDM) or dynamic frequency tuning to operate at multiple frequencies. Voltage gain control may be implemented in the transmitter, rather than the sensor, allowing smaller and lighter weight sensor designs. The EM sensor can implement noise cancellation to reduce the level of EM interference generated by nearby audio speakers.