In a technique for determining a seating position of each of users in a vehicle based on wireless signals from mobile devices carried by the users, a controller identifies a position of a mobile device within a distance from a door outside the vehicle via communication between exterior communicators and the mobile devices. When receiving a signal of boarding, the controller determines whether the mobile device is present in the vehicle via communication between an interior communicator and the mobile device. When the mobile device is determined to be present in the vehicle, the controller determines that a seat corresponding to the position of the mobile device is a seating position of a user corresponding to the mobile 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 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.

Disclosed is the estimation of the position of a user device using radio beacons which are operable at a plurality of transmit power levels. The radio beacons may transmit their position and current transmit power level. Estimates of distance between a user device and a radio beacon can take into account both received signal strength and the current transmit power level of the radio beacon. The position of the user device can be estimated taking into account whether a radio beacon can be detected at a given transmit power level. The transmit power level of the radio beacon may vary according to a cycle. The transmit power level of the radio beacon may be changed to facilitate positioning, for example in response to a signal from a user device. A radio beacon changes transmit power level in a cycle. The radio beacon can reduce transmit power level responsive to a signal. The radio beacon may be compatible with Bluetooth short range wireless connectivity standard core specification version 4.0.

Disclosed is the estimation of the position of a user device using radio beacons which are operable at a plurality of transmit power levels. The radio beacons may transmit their position and current transmit power level. Estimates of distance between a user device and a radio beacon can take into account both received signal strength and the current transmit power level of the radio beacon. The position of the user device can be estimated taking into account whether a radio beacon can be detected at a given transmit power level. The transmit power level of the radio beacon may vary according to a cycle. The transmit power level of the radio beacon may be changed to facilitate positioning, for example in response to a signal from a user device. A radio beacon changes transmit power level in a cycle. The radio beacon can reduce transmit power level responsive to a signal. The radio beacon may be compatible with Bluetooth short range wireless connectivity standard core specification version 4.0.

A tag, and a method of operation of a tag, for directing a person toward a target asset that is located in a zone within a facility. The tag presents to the person a description of the target asset and directions for reaching the zone, seeks beacon signals from a beacon attached to the target asset, and produces homing directions for approaching the target asset.

A tag, and a method of operation of a tag, for directing a person toward a target asset that is located in a zone within a facility. The tag presents to the person a description of the target asset and directions for reaching the zone, seeks beacon signals from a beacon attached to the target asset, and produces homing directions for approaching the target asset.

The communication between a tracking device and a secondary device that tracks the tracking device can be severed. On detecting a loss of connection, the secondary device retrieves a last known location of the tracking device from the tracking server. On receiving the last known location, the secondary device activates location detection functionality to determine a current location of the secondary device. If the current location is further than a predetermined threshold distance from the last known location of the tracking device, a notification is displayed by the secondary device indicating that the connection to the tracking device is lost. If the secondary device is within the predetermined threshold distance from the tracking device's last known location, the secondary device waits for a predetermined interval of time to elapse, and if the tracking device is not detected during this interval, a notification is displayed by the secondary device.

The communication between a tracking device and a secondary device that tracks the tracking device can be severed. On detecting a loss of connection, the secondary device retrieves a last known location of the tracking device from the tracking server. On receiving the last known location, the secondary device activates location detection functionality to determine a current location of the secondary device. If the current location is further than a predetermined threshold distance from the last known location of the tracking device, a notification is displayed by the secondary device indicating that the connection to the tracking device is lost. If the secondary device is within the predetermined threshold distance from the tracking device's last known location, the secondary device waits for a predetermined interval of time to elapse, and if the tracking device is not detected during this interval, a notification is displayed by the secondary device.

A user's terminal device and a service management server can provide specific service content associated with a registered beacon service to a user. In an embodiment, the terminal device registers at least one beacon service at a user's request and sends information about the registered beacon service to the service management server. Then the terminal device receives first beacon identification information corresponding to the registered beacon service from the service management server and stores the first beacon identification information. Further, when a beacon signal containing second beacon identification information is received from a beacon device, the terminal device compares the second beacon identification information with the first beacon identification information. If both of identification information are identical with each other, the terminal device offers service content corresponding to the second identification information.