GAO has advanced RFID position markers

GAO RFID now provides advanced RFID position markers, GAO 491013 and GAO 491014, to determine exact locations of long-range, semi-passive RFID tags.

The marker is typically positioned near the induction loop (antenna) and remains maintenance-free after setting the original parameters.

As the tag passes the induction loop connected to the position marker, it is 'woken up' and identification data from the position marker is downloaded onto the tag.

Depending on the type of tag, current and previous IDs as well as the relative time of passage over the loop are either repeatedly broadcasted or can be read from the tag by an RFID reader (GAO 227004) at a later time.

This ability to control the inductive field limits enables it to distinguish lanes and recognise directions.

'By taking advantage of semi-passive technology these position markers offer benefits similar to RTLS,' said Dr Frank Gao, chief executive officer of GAO Group.

GAO position markers (GAO 491013, GAO 491014) are compatible with GAO 137001, 137003, 137004 tags with marker feature.

They offer a frequency of 125kHz, 16-bit position data and loop current is 6App max.

Supply voltage is 10 to 30V DC/85 to 265V AC and power consumption is 20W max.

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