RFID is next line of Identification technique to that of existing serial numbers and Barcodes. RFID means Radio Frequency Identification, which suggests that it uses Radio Frequencies. This is one of the most important technology in the Internet of Things, as scanning an object/Item using barcode is not an effective way to manage the IOT Applications.
Why RFID and Why Not Barcodes?
The Existing Barcode system will only help identifying an object or something else when the barcode is scanned or at least in line of sight, which holds good for most of the cases today. In a fast paced world we are still waiting in lines for billing your Shopping Cart. This consumes lot of time especially during weekends where the crowd is more.
RFID will enable us to identify the objects without actually scanning and there is no need to be in line of sight at all. A simple scan will enable the reader to identify the items with in a refined search area.
Example: - Finding a specific Item in a group of similar Items is hell of a job when you have to scan all the objects using Barcodes, whereas using RFID you will just scan the stack and BINGO you will be able to differentiate.
How exactly will RFID work?
Similar to Barcodes , RFID will also have serial code for each item but the way its reads is different. An RFID system consists of three components an antenna and transceiver (generally combined into one reader) and a transponder (the tag). The antenna uses radio frequency waves to transmit a signal that activates the transponder. When activated, the tag transmits data back to the antenna.
This data is generally used to notify a programmable logic of something like getting details of the Item, Opening access Gate or for a transaction at a Toll Gate etc.
More Info on RFID
Since we are talking about radio frequency we will also have to talk about range of this frequency and Power used for transmitting the frequency
Range of Frequencies : There are two types Low-frequency RFID systems (30 KHz to 500 KHz) which have small transmission ranges (generally less than six feet) and High-frequency RFID systems (850 MHz to 950 MHz and 2.4 GHz to 2.5 GHz) offer longer transmission ranges (more than 90 feet). It’s easy for us to guess that, the higher the frequency, the more expensive the system.
Power/Energy: we have two types of RFID tags, Passive and Battery powered. Passive RFID tag uses the radio energy from the Reader/Interrogator or the device which is requesting information to relay back the details. The Battery powered RFID tag use the energy from a small embedded battery to relay the information.
Why RFID and Why Not Barcodes?
The Existing Barcode system will only help identifying an object or something else when the barcode is scanned or at least in line of sight, which holds good for most of the cases today. In a fast paced world we are still waiting in lines for billing your Shopping Cart. This consumes lot of time especially during weekends where the crowd is more.
RFID will enable us to identify the objects without actually scanning and there is no need to be in line of sight at all. A simple scan will enable the reader to identify the items with in a refined search area.
Example: - Finding a specific Item in a group of similar Items is hell of a job when you have to scan all the objects using Barcodes, whereas using RFID you will just scan the stack and BINGO you will be able to differentiate.
How exactly will RFID work?
Similar to Barcodes , RFID will also have serial code for each item but the way its reads is different. An RFID system consists of three components an antenna and transceiver (generally combined into one reader) and a transponder (the tag). The antenna uses radio frequency waves to transmit a signal that activates the transponder. When activated, the tag transmits data back to the antenna.
This data is generally used to notify a programmable logic of something like getting details of the Item, Opening access Gate or for a transaction at a Toll Gate etc.
More Info on RFID
Since we are talking about radio frequency we will also have to talk about range of this frequency and Power used for transmitting the frequency
Range of Frequencies : There are two types Low-frequency RFID systems (30 KHz to 500 KHz) which have small transmission ranges (generally less than six feet) and High-frequency RFID systems (850 MHz to 950 MHz and 2.4 GHz to 2.5 GHz) offer longer transmission ranges (more than 90 feet). It’s easy for us to guess that, the higher the frequency, the more expensive the system.
Power/Energy: we have two types of RFID tags, Passive and Battery powered. Passive RFID tag uses the radio energy from the Reader/Interrogator or the device which is requesting information to relay back the details. The Battery powered RFID tag use the energy from a small embedded battery to relay the information.
Very simply explained
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