Benefits of passive RFID

Passive radio frequency identification (RFID) technology provides a cost-effective solution to automatically identify and locate large numbers of assets or stock in a variety of different organisations including healthcare. In hospitals passive RFID labels can significantly reduce the time spent on checking inventory and locating specific equipment, improving inventory management, medical device availability and enabling medical staff to spend more time looking after patients.


HOW PASSIVE RFID WORKS

Passive RFID systems use a special label tag which can transmit a unique ID by radio frequency (RF) signal. Unlike active tags, passive RFID tags have no battery and require an external source to trigger signal transmission.

Most passive RFID tags contain at least two parts:

One is an integrated circuit for storing and processing information, modulating and demodulating an RF signal, and other specialised functions.

The second is an antenna for receiving and transmitting the signal.

Passive ultra-high frequency (UHF) RFID labels can be used to replace the standard asset labels on medical devices and display all relevant information in line with GS1 compliance. Depending on environment and the asset characteristics, RFID labels can be read over a distance of up to 10 metres. Signals are picked up by one of the following types of passive readers: