How Are Algorithms Used in an RFID System?


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Ask The ExpertsCategory: QuestionsHow Are Algorithms Used in an RFID System?
Chelsea Leenhouts asked 4 years ago

How can I get a better understanding of the different software or algorithm capabilities and considerations for RFID scanning hardware, particularly for automated solutions like tunnels? What is the expectation of a reader versus additional software to optimize read rates and accuracy?


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Algorithms are typically used to omit extraneous reads. For example, if you are trying to read the tags of all items sitting on a single shelf, but not those of the items above or below the target shelf, algorithms can help to identify the tags you don't want to read. The reader will then not send the serial numbers of those tags to the backend software. Similarly, if you are reading tags on a pallet loaded onto a forklift truck, you might also pick up the serial numbers of tags on items in a warehouse aisle. Algorithms can be used to determine which reads are extraneous to the current task and instruct the software to ignore them. The only way to test the effectiveness of these algorithms is to test different readers in real-world scenarios and see which one did the best job of delivering the tag reads you wanted, while eliminating those you did not want.

Mark Roberti
Founder and Editor
RFID Journal


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