Why Using RFID tag in the Warehouse?

RFID (radio frequency identification) is an efficient way to transfer data and track items. An RFID system is composed of tags or labels, printers, and readers (handheld or fixed). RFID is becoming more and more popular in many industries for a variety of applications. You may wonder, why is RFID becoming so popular in warehouses? What are the benefits? What can RFID do that a standard barcode system cannot?

Here are the top five reasons why RFID tags should be used in warehouses:
1. RFID tags can store up to 100 times the data of barcodes, allowing you to keep track of all the data you need for your inventory such as lot and serial number, size, manufacturer, vendor, expiration date, user, location on production line and anything else you might want to know.

2. RFID technology is functional inside and outside the warehouse. The technology has the capacity to withstand harsh environments and temperatures, even the tags!

3. Tags do not have to be seen in order to read data. This means that tracking products or people can happen from anywhere in a specified range which maximizes speed and efficiency.

4. The position of each tag is flexible (as long as they are not blocked by metal or water) since the tag doesn’t need to be physically seen by the reader. For example, you can place tags in boxes or within a pallet.

5. Readers can read up to 200 tags at once. This will increase speed and productivity since employees will not need to physically scan each label.

What are Passive UHF Tags?

Passive UHF tags have no internal power supply. The minute electrical current induced in the antenna by the incoming radio frequency signal provides just enough power for the IC in the tag to power up and transmit a response. Most passive tags signal by backscattering the carrier wave from the reader. This means that the antenna has to be designed both to collect power from the incoming signal and also to transmit the outbound backscatter signal. The response of a passive RFID tag is not necessarily just an ID number; the tag chip can contain non-volatile, possibly writable EEPROM for storing data.

Passive tags have practical read distances ranging from about 10 cm (4 in.) up to a few meters (EPC) and (ISO 18000-6 ), depending on the chosen radio frequency and antenna design/size. Due to their simplicity in design they are also suitable for manufacture with a printing process for the antennas. The lack of an onboard power supply means that the device can be quite small: commercially available products exist that can be embedded in a sticker, or under the skin in the case of low frequency RFID tags.