WHAT IS RFID?
RFID also known as Radio Frequency Identification refers to a fast developing
technology whereby a form of wireless communication uses radio waves to transfer
data, identify and find objects.
HOW DOES RFID WORK?
It uses radio waves to transmit signals that activate the tag. Once activated, the tag sends a wave back to the antenna, where it is translated into data. The transponder is in the RFID tag itself.
RIFD CAN BE SEGREGATED INTO THREE DIFFERENT TYPES :
LOW-FREQUENCY RFID (LF)
- Low-Frequency RFID (LF) cover frequencies from 30 KHz (Kilohertz) to 300 KHz.
- LF RFID Systems operates around 125 KHz.
- They are suitable for short reading distance.
- They are ideal for access control, identification of animals, stock management.
HIGH-FREQUENCY RFID (HF)
- High-Frequency RFID (HF) range from 3 MHz (Megahertz) to 30 MHz.
- HF RFID Systems operates around 13.56 MHz with read ranges between 10 cm and 1 m.
- They are suitable for comparatively longer reading distance, mostly used for access control, electronic bank cards, ticketing, payment, and data transfer applications.
- Due to their long reading distance hence they are more costly.
ULTRA-FREQUENCY FRID (UHF)
- Ultra-Frequency RFID (UHF) range from 300 MHz to 3 GHz (Gigahertz).
- UHF RFID operates in 2 frequency ranges, 433 MHz and 860–960 MHz.
- UHF is the fastest growing market segment of RFID technology, uses in industry such as oil and gas.
UHF CONSISTS OF ACTIVE TAG AS WELL AS PASSIVE TAG.
ACTIVE TAG :
- Active RFID systems tags transmit their own signal and have their own power (typically a battery).
- Active RFID are mainly use in construction, public works and security as well as in home
automation applications.
- 433 MHz frequency is used for active tags, offer a reading range of more than 100 meters.
PASTIVE TAG :
- Passive tags have no battery. Instead, they draw power from electromagnetic energy transmitted from an RFID reader
- 860–960 MHz range is used mostly for passive tags and some semi-passive tags.
- They do not require a direct line of sight to a reader but do have a much shorter read range, and are smaller in size and lightweight.
- They are mainly uses in Logistics, Pharmaceutical and healthcare, Industrial and manufacturing industry.
WHAT IS A BARCODE?
Barcode is a machine-readable form of data, consisting of parallel black lines (bars) and white spaces, both of varying widths, used to identify object.
HOW DOES A BARCODE WORKS?
The combination of the black lines and white spaces encodes certain information about a product.
This information can then be translated into a human readable format that appears on a computer.
TYPES OF BARCODES
1-DIMENSIONAL (1D) BARCODES
1D barcodes also called linear barcodes, are a series of black and white bars that can store information like a product’s type, size and color.
2-DIMENSIONAL (2D) BARCODES
2D barcodes can include more information than just text, like price, inventory levels and even a product image.
WHAT IS THE DIFFERENCE BETWEEN RFID AND BARCODE?
Although similar to a barcode but RFID tag does not have to be scanned directly and do not require any line of sight to a reader.
SUMMARY
RFID systems are much more efficient for scanning a large number of items but can be more costly.
It is more resistant or durable than a barcode.
Multiple read is allowed in RFID, whereas only a single barcode can be read once at a time. Hence RFID processed faster than a barcode.
REGULAR SUPPORT HOURS
We strives to respond to phone and email requests within one business day from customers and render assistance in the soonest time possible.
Monday to Friday : 9am to 6pm SGT
Sales Enquiry : (+65) 6100 2628
Support & General Enquiry : (+65) 6900 5566
Email : support@RavenPOS.com
Address : 57, Ubi Avenue 1, #04-13, Singapore 408936 - ( Ubi Centre )
