초록 ▼

A method and an apparatus for identifying articles moving along a surface, especially suitable for conditions in which the surface and/or the articles comprise comparatively much electrically conductive material. The articles are provided with electronic responders, each having two electrodes which

A method and an apparatus for identifying articles moving along a surface, especially suitable for conditions in which the surface and/or the articles comprise comparatively much electrically conductive material. The articles are provided with electronic responders, each having two electrodes which are insulated from each other and in operation, face the surface. The surface is provided with corresponding electrodes connected to a transmitter/receiver device. When the electrodes of a responder are located opposite the electrodes of the transmitter/receiver device, an electric field is produced between these electrodes, enabling information transfer between the responder and the transmitter/receiver device.

대표청구항 ▼

A method of identifying through an electronic identification system articles moving along a surface, particularly suitable for identifying metal pallets or containers moving over a loading floor, each article to be identified being provided with an electronic responder comprising a receiver circuit,

A method of identifying through an electronic identification system articles moving along a surface, particularly suitable for identifying metal pallets or containers moving over a loading floor, each article to be identified being provided with an electronic responder comprising a receiver circuit, a switching means connected thereto and control means for the switching means, comprising the steps of: providing the surface with at least two first, substantially platelike, interspaced electrodes electrically insulated relatively to one another, which are interconnected through a transmitter/receiver device of the electronic identification system; connecting the receiver circuit of the responder between at least two second substantially platelike electrodes which are insulated relatively to each other and have an interspace corresponding with the interspace between the first electrodes; energizing the transmitter/receiver device for generating at a predetermined operating frequency an AC voltage at the first electrodes; and providing the articles with electronic responders which are moved along the surface in such a manner that, at least temporarily, a position is occupied in which the first electrodes are positioned opposite the second electrodes, whereby the opposed electrodes are coupled.