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How to Implement RFID Successfully

Select radio frequency identification as a solution only when its capabilities provide an immediate or projected benefit to a process that makes it more effective than choosing another technology.
By Bill Poulsen
The RF-spectrum analysis is necessary not only to ensure any existing systems do not affect the readers, but also to determine if any other devices in the area, such as 900 MHz wireless headsets or radios, are adversely affected by the RFID reader transmissions. Some preliminary tag testing should also take place during this survey. An assortment of tags should be brought along and tested using a handheld interrogator, in order to get an indication of how well the tags can be read when attached to the items you are interested in tracking.

The physical layout of the area or facility should be documented and annotated in a report to pinpoint the locations at which read points will be implemented. All stakeholders for planning and implementing the project will use this report.

5. Think Hybrid
Consider adopting a hybrid RFID technology, which involves employing a combination of technologies to create your solution.

Utilize tags printed with bar codes and human-readable data whenever possible. Not only can the bar code and human-readable text serve as a backup in case the reader or RFID chip fails, but it can also be utilized in parts of the process in which using an RFID reader makes no sense. This might be a part of the process in which some form of human interaction will still be used, or when you may need to locate and identify a single item among many.

In these situations, it may be difficult for a reader to distinguish between the item you really want and the one right next to it. If you are going to use a handheld interrogator to read a tag just like you would a bar code, then a bar-code solution—without RFID—would be better than radio frequency identification.

6. Tags
Because RFID tags come in hundreds of different configurations, selecting the proper tag for your particular application is crucial. There are simple labels that can be printed, tags embedded in plastic credit card formats, various hard mountable tags, and tie-wrap-style tags. Some can be mounted on metal and perform best that way, while others will effectively be made useless if metal-mounted. Tags are available for various harsh environments, including both high temperatures and cryogenic subzero ranges.

USER COMMENTS

Yalani Camara 2010-11-13 06:05:12 PM
How can I interface RFID with Web site I would like to know how to integrate RFID to interface with Web Pages. Thank you, Yalani
Stockare RFID Solutions 2016-09-02 07:16:46 AM
Nice article Bill, you explained everything in detail! Thank you. Yalami, you can add a website interface to a RFID system, if you connect the RFID reader to your web server, then you could display all the readings at a website. If you want to see an example of it, let me know. Thank you.

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