An apparatus and method of delivering an alert from an aircraft to a search and rescue system. An alert from an aircraft is received via a communications satellite. The alert comprises identification information identifying the aircraft and position information identifying the position of the aircraft. In response to receiving the alert, an emulated distress radio beacon signal is generated. The emulated distress radio beacon signal comprises the identification information and the position information in a standard format of a signal generated by a distress radio beacon. The emulated distress radio beacon signal is broadcast from a location other than the aircraft as an emulated distress radio beacon transmission that is configured to be received and processed by the search and rescue system.

An apparatus and method of delivering an alert from an aircraft to a search and rescue system. An alert from an aircraft is received via a communications satellite. The alert comprises identification information identifying the aircraft and position information identifying the position of the aircraft. In response to receiving the alert, an emulated distress radio beacon signal is generated. The emulated distress radio beacon signal comprises the identification information and the position information in a standard format of a signal generated by a distress radio beacon. The emulated distress radio beacon signal is broadcast from a location other than the aircraft as an emulated distress radio beacon transmission that is configured to be received and processed by the search and rescue system.

A robotic work tool system (200) comprising a robotic work tool (100) and a beacon marker (280), said robotic work tool (100) comprising a beacon sensor (175) configured to sense a signal being transmitted by the beacon marker (280), said beacon marker (280) marking an area (270) around an obstacle (260) in a work area (205) in which said robotic work tool (100) is arranged to operate, wherein said robotic work tool is configured to determine a proximity to a beacon marker (280) and to adapt its operation accordingly.

Provided are a method, system, and apparatus for verifying the validity of a beacon signal. More particularly, the user terminal determines whether authentication information received from a beacon service server and authentication information received from a verification beacon server are the same to allow the received beacon signal to provide only user-desired information to a user, thus allowing the user to focus on purchasing activity in a member shop to increase shopping time and efficiency and promote consumption.

Provided are a method, system, and apparatus for verifying the validity of a beacon signal. More particularly, the user terminal determines whether authentication information received from a beacon service server and authentication information received from a verification beacon server are the same to allow the received beacon signal to provide only user-desired information to a user, thus allowing the user to focus on purchasing activity in a member shop to increase shopping time and efficiency and promote consumption.

During an evacuation situation in a building that is equipped with an elevator system and in which a plurality of fixed point markers are arranged at defined sites, an escape route is transmitted to a person by means of a mobile device. The fixed point markers store data that can be received by the mobile device. An instantaneous position of the mobile device can be determined when the mobile device uses data received from a fixed point marker to access a database in which the data is linked to a site of the fixed point marker. The ascertainment of the escape route to a destination is based on the instantaneous position of the mobile device. The person is registered on reaching the destination when the mobile device is detected at the destination.

During an evacuation situation in a building that is equipped with an elevator system and in which a plurality of fixed point markers are arranged at defined sites, an escape route is transmitted to a person by means of a mobile device. The fixed point markers store data that can be received by the mobile device. An instantaneous position of the mobile device can be determined when the mobile device uses data received from a fixed point marker to access a database in which the data is linked to a site of the fixed point marker. The ascertainment of the escape route to a destination is based on the instantaneous position of the mobile device. The person is registered on reaching the destination when the mobile device is detected at the destination.

A position detection system is provided which is capable of inhibiting an increase in system costs and improving accuracy of detecting a position of a terminal. In the position detection system, a first terminal measures radio waves from a wireless connection device or a second terminal, and transmits a measurement result to a position detection server through the wireless connection device. The position detection server estimates that the first terminal is located in a position of the second terminal which has transmitted the radio waves in a case where the measurement result includes information of the radio waves from the second terminal, and estimates the position of the first terminal based on information of radio wave intensity of the radio waves from the wireless connection device, which is included in the measurement result, reference data, and positional information of the second terminal in a case where the measurement result does not include the information of the radio waves from the second terminal.

A position detection system is provided which is capable of inhibiting an increase in system costs and improving accuracy of detecting a position of a terminal. In the position detection system, a first terminal measures radio waves from a wireless connection device or a second terminal, and transmits a measurement result to a position detection server through the wireless connection device. The position detection server estimates that the first terminal is located in a position of the second terminal which has transmitted the radio waves in a case where the measurement result includes information of the radio waves from the second terminal, and estimates the position of the first terminal based on information of radio wave intensity of the radio waves from the wireless connection device, which is included in the measurement result, reference data, and positional information of the second terminal in a case where the measurement result does not include the information of the radio waves from the second terminal.

The present disclosure relates to building management. Various embodiments may include methods for determining a current position of mobile objects in buildings including: transmitting a referenced item of position information to a mobile object; transmitting a building plan to the mobile object for display thereon; and providing a calibration calculation for determining the current position of the mobile object on the plans displayed on the mobile object based on the position information. The position information is unambiguously associated with the transmitting device and thus corresponds to a current location of the mobile object in the building. Transmission of the position information or of the reference thereto takes place within a directional radio emitting region.