Abstract: This document discloses a solution for event-triggered positioning of an asset tag.

Abstract: This document discloses a solution for managing a massive amount of asset tags in a system.

Abstract: Active radio-frequency identification, RFID, tag, and a product surveillance method using active RFID tags. The method includes: transmitting (202), by an active RFID tag, continuously a signal comprising an own identifier according to a predetermined schedule; receiving (204), by the active RFID tag, continuously a plurality of signals comprising a plurality of foreign identifiers transmitted by a plurality of other active RFID tags according to the predetermined schedule; measuring (206), by the active RFID tag, a received signal strength indication, RSSI, of each received signal; storing (208), by the active RFID tag, each foreign identifier of a signal whose RSSI exceeds a predetermined strength threshold; detecting (210), by the active RFID tag, that a signal with a stored foreign identifier is no more received according to the predetermined schedule and marking (212), by the active RFID tag, said stored foreign identifier.

Abstract: Relevance determination of sensor event is disclosed. An apparatus obtains a sensor event created on the basis of sensor data generated by one or more sensors, determines relevance of the sensor event, and if the relevance of the sensor event fulfills a predetermined relevance condition, outputs, with the output interface, the sensor event according to its determined relevance.

Abstract: Adjustment of sensor measurement and transmission intervals in a mobile apparatus is disclosed. The mobile apparatus obtains sensor data from the one or more sensors, and obtains wireless data with the wireless transceiver. Furthermore, the mobile apparatus adjusts repeatedly a measurement interval of the one or more sensors for obtaining the sensor data and a transmission interval of the wireless transceiver for transmitting the sensor data on the basis of the obtained sensor data and the obtained wireless data.

Abstract: Relevance determination of sensor event is disclosed. An apparatus obtains a sensor event created on the basis of sensor data generated by one or more sensors, determines relevance of the sensor event, and if the relevance of the sensor event fulfils a predetermined relevance condition, outputs, with the output interface, the sensor event according to its determined relevance.