RFID
RFID (les identifiants à fréquence radio) permet l'identification et la localisation des objets et / ou les êtres vivants. On a besoin d'un transpondeur et d'un lecteur. Le transpondeur est simplement un chip qui est fixé à l'objet. Cette puce met un code dès que l'article passe le dispositif de lecture à un certain disctance. Ce code sera interprété par un logiciel et toutes les informations peuvent être affichées en des termes clairs.
This chip puts out a code as soon as it passes the reading device at a certain disctance. This code will be interpreted by a software and all information can be displayed in clear words.
In order to enlarge the reading distance between transponder and reading device, a little antenna structur can be added to the chip. This might be embedded to the chip itself or externally designed.
An RFID chip connected to an antenna structure embedded to a ground plane.
Image source::http://www.murata.com/new/news_release/2008/pdf/nr0851e.pdf
Important: The RFID chip has nothing to do with the electrical logic of the board. It is electrocally completely independent.
The energy required is supplied by the magnetic field of the reading device.
The combination of chip and antenna might be very small and e.g. can be designed on foil. So it is very easy to fix such an RFID tag to any object.
Pourquoi ne fournir pas un PCB avec un tel transpondeur afin de l'identifier ou pour quelle raison jamais?
Why shouldn't a PCB be furnished with such a tag for identification or localisation at any step of further process chain control? At any time e.g. during the process of assembly the board individually can be located and identified.
The PCB house PCB-POOL® offers Magic PCB®, a technique to embed an RFID tag laterally to the edge of a board and connect it to an antenna from the inside. Then it gets resin cast ans thus irreversibly is fixed to the PCB. From the outside only the antenna structure can be seen.
This 2min Film en anglais simple illustrates the layout process in TARGET 3001!:
En TARGET 3001! il y a quatre anntennes disponibles:
LXMS31ACNA-009
LXMS31ACNA-012
LXMS31ACNA-010
LXMS31ACNA-011
Les téléchargez à votre layout comme un composant de la base de données. Note important Prenez soin de fournir tous les segments de signal avec un nom de signal identique car à partir de la base de données les pièces n'apportent pas de signaux.
Antenna geometries