The present invention relates to fluorine derivatives and organic electronic devices in which said compounds are used as a matrix material in the emitting layer andor as a hole transport material, andor as an electron blocking or exciton blocking material, andor as an electron transport material. A position-detecting unit serves for detecting the piece goods conveyed on the feed conveyer. Accordingly, embodiments of the invention can be used to increase the availability of queue state, compensate for node failures within an overlay network, and promote replication of consistent queue state between nodes within an overlay network.