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.

Each of plural image forming apparatuses 2-1 to 2-N transmits a beacon signal including a device ID. Each of plural user terminal apparatuses 1-1 to 1-M determines a user ID of a user 101-i who currently uses it, receives the beacon signal transmitted from an image forming apparatus 2-j, and transmits to a mapping processing apparatus mapping information that associates the user ID and the device ID in the received beacon signal. Further, the mapping processing apparatus receives the mapping information on each user, determines a user associated by the mapping information with each image forming apparatus 2-j among the plural image forming apparatuses 2-1 to 2-M, and generates map data in which the determined user is associated with each image forming apparatus 2-j.

A method and system for oversampling a waveform with variable oversampling factor is suggested. The method and for dynamic selection of the oversampling factor are based on a modified equivalent time sampling approach. Multiple waveforms are transmitted, which are separated by a variable delay. The method permits that a receiver selects a different oversampling factor for the received waveform. As a result the method and system provide for oversampling a waveform with a variable, dynamically selectable oversampling factor.

A management system for objects under monitoring that is capable of managing the presence of moving objects under monitoring. The management system includes a plurality of beacon terminals, one or more management terminals, and a management server. The beacon terminals are respectively held by the moving objects under monitoring, and each have a unique identifier and broadcast a beacon signal. The one or more management terminals are respectively held by one or more moving bodies moving in one or more areas, receive beacon signals to acquire beacon identifiers and beacon presence information, and acquire location information via a positioning system. The management terminals output beacon information spontaneously or upon request. The management server determines the state of presence of the objects under monitoring in the one or more areas, based on the beacon information acquired from the one or more management terminals.

The vehicle position detecting system includes a beacon installed position recognizing section that recognizes an installed position of a beacon based on installed position information when a beacon signal including the installed position information of the beacon transmitted from the beacon is received by a beacon receiver of a vehicle traveling in a parking garage, a vehicle traveling state recognizing section that recognizes a traveling state of the vehicle, a traveling range estimating section that estimates a traveling locus L of the vehicle from a time point t1 at which the beacon signal is received, based on the traveling state of the vehicle that is recognized by the vehicle traveling state recognizing section, and a vehicle position estimating section that estimates a position of the vehicle based on the installed position of the beacon and the traveling locus L.

Methods and devices are presented for synchronizing positioning signals in a kinematic location network. In particular, methods and devices are presented for synchronizing a unique positioning signal generated by a positioning-unit device to a reference positioning signal generated by a reference transmitter, where the positioning-unit device and the reference transmitter are moving relative to each other. In certain embodiments the reference transmitter or the positioning-unit device, or both, self-monitor trajectory data comprising one or more of location, velocity or acceleration, e.g. using inertial navigation systems, and broadcast that data in their positioning signals. The trajectory data enables estimation of Doppler shifts and propagation delays associated with the positioning signals, allowing measurement and correction of clock drift for synchronization of the positioning signals.

A position determination device determines the position of a terminal. A signal of a sensor attached to one or both of a beacon and a terminal is sampled, so that a signal of the beacon may be transmitted and received only when the beacon or the terminal has moved. A plurality of beacons sequentially transmit beacon signals to determine the terminal position by determining a distance between the respective beacons and the terminal based on a time to receive the beacons. The device includes a beacon for transmitting a beacon signal; a terminal for receiving the beacon signal; and a first sensor attached to the terminal to sense movement of the terminal and to output a first sensing signal indicative of the sensed movement. The terminal has a reception mode for receiving the beacon signal and turns on/off the reception mode based on the first sensing signal.

Disclosed are various approaches for determining a location using guided surface waves. A guided surface wave is received. A field strength of a guided surface wave is identified. A phase of the guided surface wave is identified. A distance from a guided surface waveguide probe that launched the guided surface wave is calculated. A location is determined based at least in part on the distance from the guided surface waveguide probe.

A tracking tag of a tracking system configured to receive, by one or more processors of the tracking tag, a first measurement collected by one or more sensors of the tracking tag; determine, by the one or more processors, a degree of similarity between the first measurement and a critical value; compare, by the one or more processors, the degree of similarity between the first measurement and the critical value to a first threshold value; modify, by the one or more processors, an initial time interval based on the comparison of the degree of similarity between the first measurement and the critical value to the first threshold to determine a modified time interval; and transmit, by the one or more processors, one or more beacon signals according to the modified time interval.

The present disclosure relates to a control device for electrical installations, which has improved signaling capabilities in alert conditions, particularly when said control device is no more fed by a power supply and it cannot carry out its control and monitoring functionalities. In a further aspect, the present disclosure relates to a computerized signaling system for an electrical installation, characterized in that it comprises one or more control devices having the above-mentioned improved signaling capabilities and a software application stored in one or more mobile computerized devices. Said software application is configured to make each mobile computerized mobile detect the beacon data packets broadcasted by said control devices in alert conditions.