Haltian Oy

Ville Ylläsjärvi

Jyrki Okkonen

Marko Parttimaa

Teemu Vaattovaara

Juha Pikkarainen

Jussi Kivilinna

Aleksandre Pekki

Pertti Kujala

This document discloses a solution for event-triggered positioning of an asset tag. According to an aspect, the asset tag comprises: a first wireless communication circuitry configured to support a first wireless communication protocol of a decentralized wireless network; a second wireless communication circuitry configured to support a second wireless communication protocol different from the first wireless communication protocol; and at least one processor configured to perform event-triggered beacon signal transmissions by: pairing the asset tag with a wireless device and acquiring an identifier of the wireless device during the pairing; as a result of the pairing, triggering transmission of a beacon signal use the second wireless communication circuitry to transmit a beacon signal to position the asset tag; and generating payload data comprising information on said pairing and using the first wireless communication circuitry to transmit the payload data via at least one other asset tag of the decentralized wireless network to a server computer.

Location tracking of assets

This document discloses a solution for managing a massive amount of asset tags in a system. According to an aspect, the system comprises: a plurality of asset tags, each asset tag associated with an asset, configured to establish a decentralized wireless network amongst the plurality of asset tags, to route payload data via the decentralized wireless network according to a first wireless communication protocol, and to transmit beacon signals according to a second wireless communication protocol different from the first wireless communication protocol; a positioning infrastructure comprising at least one location tracking node configured to receive said beacon signals, to determine location tracking information based on the received beacon signals, and to transmit the location tracking information to a server computer; the server computer configured to store a record for each asset, the record comprising the payload data received via the decentralized wireless network and further comprising location data based on the location tracking information received from the at least one location tracking node; and means for limiting transmissions of the beacon signals of the plurality of asset tags in a centralized manner such that simultaneous transmissions of the beacon signals are limited.

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

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Oulu, Finland

Ville Ylläsjärvi