Coding system for reading data of work pieces on transfer lines

Abstract

Abstract 1. Coding system for reading binary data via the identifier as well as the machining and assembly status of workpieces on a transfer line, which includes the following features : a) the mobile workpieces, workpiece carriers (10) or similar are provided with a data carrier (18) ; b) the mobile data carrier (18) interacts without contact via an inductive coupling with fixed stations (15) arranged on the transfer line ; c) the fixed station (15) reads out data via the inductive coupling from a mobile data carrier (18) which is moved past it by sensing the voltage curve at at least one coupling coil (23) arranged in the fixed station (15) ; d) during the read-out process, the voltage curve can be influenced at at least one first coupling coil (21), arranged in the data carrier (18), depending on the binary value (1/0) transferred in each case, by an electronic circuit (27) in the mobile data carrier (18) ; e) the mobile data carrier (18) contains at least one energy store (26), which can be charged with electrical energy by means of a pulse train (a) generated by the fixed station (15), when the mobile data carrier (18) is moved past ; characterized in that f) the inductive coupling takes place by means of a transformer (20) which contains the first coupling coil (21) arranged in the mobile data carrier (18) and the coupling coil (23) arranged in the fixed station (15) as well as the cores (22, 24) arranged in the coupling coils (21, 23), g) the fixed station (15) writes new data onto the mobile data carrier (18) in at least one part of the pulse train (a) and h) the electronic circuit (27) of the mobile data carrier (18) influences, or does not influence, respectively, the decay process of the voltages (U21, U23) in the coupling coils (21, 23) of the transformer (20) during reading out of the binary data after each pulse (i) of the pulse train (a), depending on the corresponding binary value (1/0).

Inventors

• 👤 Edwin Fauser
• 👤 Hans List
• 👤 Günter Schirmer
• 👤 Paul Hesser

Bibliographic Details