Material handling system with dynamic source tagging

1. A method of applying radio frequency identification (RFID) tags to an article, comprising:

providing a conveyor having a conveying surface for conveying articles;

providing a label application apparatus having multiple label holders, and holding a plurality of different types of RFID tags with said label holders, at least some of said RFID tags having different radio frequency signal emitting capabilities than other of said RFID tags;

determining a characteristic of an article on said conveying surface that may affect a radio frequency signal emitted by an RFID tag;

controlling said label application apparatus to selectively retrieve at least one of said plurality of different types of RFID tags from one of said label holders as a function of the characteristic of the article; and

applying the selected RFID tag to the article on said conveying surface.

2. The method of claim 1 wherein said determining a characteristic of an article comprises providing a database of article identifiers and information pertaining to the characteristic of that article that may affect radio frequency signals emitted by an RFID tag.

3. The method of claim 2 wherein said determining a characteristic of an article further comprises determining the article identifier for that article and applying that article identifier to the database.

4. The method of claim 3 wherein said article identifier comprises a product barcode.

5. The method of claim 4 wherein said determining a characteristic of an article further comprises reading the product barcode as the article is being conveyed by said conveying surface.

6. The method of claim 1 further including applying the selected RFID tag to a particular location on the article as a function of the characteristic of the article.

7. A labeling system for applying radio frequency identification (RFID) tags to an article, comprising:

a conveyor having a conveying surface for conveying articles;

a label application having multiple label holders, said multiple label holders adapted to holding different types of RFID tags, at least some of said RFID tags having different radio frequency signal emitting capabilities than other of said RFID tags, said label application apparatus adapted to selectively retrieve an RFID tag from one of said label holders;

a control, said control determining a characteristic of an article on said conveying surface that may affect a radio frequency signal emitted by an RFID tag;

said control retrieving at least one of said plurality of different types of RFID tags from said at least one of said label holders as a function of the characteristic of the article, and controlling said label application apparatus to apply the retrieved RFID tag to the article on said conveying surface.

8. The system of claim 7 wherein said control includes a database of article identifiers and information pertaining to the characteristic of that article that may affect radio frequency signals emitted by an RFID tag.

9. The system of claim 8 wherein said control determines the article identifier for that article and applying that article identifier to the database.

10. The system of claim 9 wherein said article identifier comprises a product barcode.

11. The system of claim 10 including a scanner, said control determining a characteristic of an article by reading the product barcode with said scanner as the article is being conveyed by said conveying surface.

12. The system of claim 8 wherein said control controls said label application apparatus to apply the selected RFID tag to a particular location on the article as a function of the characteristic of the article.