Uniclox Technologies integrates digital data collection systems with your access control and HR software applications, giving your managers access to timely, accurate information straight from the shop floor.
See the latest security products at Securex, Sandton
Uniclox will be exhibiting at Securex - South Africa's premier security trade show - from 31 August to 2 September at the Sandton Conference Centre (Stand C2). Uniclox will demonstrate a range of advanced biometric terminals and products, including face and hand geometry scanners as well as the latest fingerprint and RFID readers.
Proximity RFID Time & Attendance
A Radio-Frequency Identification system has two parts:- A transceiver with scanning antenna to receive and store data
- A transponder - the RFID tag - that has been allocated to a person or asset.
The transceiver puts out radio-frequency signals in a relatively short range. When an RFID tag passes nearby, the transceiver recognises the identification information stored on the RFID tag, and saves this information along with additional data such as the time.
The scanning antennas can be permanently affixed to a surface, incorporated into a structure like a door or can be handheld.
- Active RFID tags have their own power source and can be read can be much farther away. They have a limited life span.
- Passive RFID tags do not require batteries and can be much smaller with a virtually unlimited life span.
RFID tags can be read in a wide variety of circumstances. The tag does not need to touch the surface of the transceiver, and is therefore not subject to wear. The read time is typically less than 100 milliseconds. Many tags can be read at once rather than item by item.RFID is the most reliable and cheapest method of identification.
RFID tags and barcodes both carry information. However, there are important differences between these two technologies:
- RFID readers do not require a direct line of sight so they can also be implanted within the product itself. Since line of sight is required for barcodes, the printed barcode must be exposed on the outside of the product, where it is subject to greater wear and tear.
- RFID tags can be read at much greater distances - up to 300 feet. The range to read a barcode is typically less than fifteen feet.
- RFID readers can interrogate, or read, RFID tags dozens of per second.
- Reading barcodes is much more time-consuming. Barcode readers usually take a half-second or more to successfully complete a read.
- RFID tags are typically more rugged, since the electronic components are better protected in a plastic cover.
- Barcodes have no read/write capability; that is, you cannot add to the information written on a printed barcode. RFID tags, however, can be read/write devices; the RFID reader can communicate with the tag, and alter as much of the information as the tag design will allow.
- RFID tags are typically more expensive than barcodes.
