Encoding system for sending trolleys to their destination in a floor chain haulage system

摘要

Encoding system for sending trolleys (2) to their destination in a floor chain haulage system in which trolleys (2) are moved by means of chains (7) which are worked into metal chain rails (6) in the floor (5), whereby the encoding system contains transponders (1) mounted on the trolleys (2) which can emit a code and, at least in one place along the floor chain path (4) for the trolleys (2), code reading means (3) which contain a spool (16) mounted in the floor (5), characterized in that the code reading means (3), on the above-mentioned place along the floor path (4), contain two spools (15) which are connected in phase, including one on each side of the chain rail (6), whereby the metal chain rail (6) functions as a flux conductor, whereas the transponders (1) are of the inductive type with an adjustable code and whereby at least a transmitter and receiver part (11) thereof is mounted above the chain rail (6). $$