MONITORING HARVESTED LOGS AND PILES OF LOGS AT A WORKSITE

In the method a forwarder (30) is applied, including one or more sensors (122) adapted to sense one or more log pile attributes that concern and identify a pile of logs as a whole, each log pile attribute representing a property of the log pile, the forwarder further collecting the logs in each sensed log pile. In the method a forest harvester (10) is applied, adapted to harvest trees to produce logs that are deposited in log piles, including one or more sensors (107) adapted to sense one or more log pile attributes that concern and identify a pile of logs as a whole, the forest harvester storing and/or processing the sensed one or more log pile attributes, and/or sending them to a remote location, and/or sending them to one or more forwarders. The method including comparing the sensed one or more log pile attributes to identify the log pile. The arrangement includes the forest harvester and the forwarder.