There are a few different type of automatic identification systems in the market which use mostly sensor-based technologies. However, it is said that barcodes are to be replaced with RFID in the future due to its competitive advantages as compared to the other auto-IDs. Consumers benefit from shorter lines and can save plenty of time because RFID tracks at a very fast speed. They can also benefit from lower prices because of the efficiencies RFID brings to the supply chain.
RFID tag hidden inside Security and convenience have been added into automobile by using RFID technology for anti-theft immobilizers and passive-entry systems.
RFID technology are used to meet export regulations and optimize livestock value. Wild animals are tracked in ecological studies, and many pets who are tagged with it are returned to their owners.
Hospitals and pharmacies meet tough product accountability legislation with RFID; libraries limit theft and keep books in circulation more efficiently.
Shop houses use RFID technology to keep inventories at the optimal level, reduce out-of-stock losses, limit shoplifting, and speed customers through check-out lines.
More applications:
This is the cell phone and the cell-house that Mr. Cheng said in class. RFID installed in cell phone so that it transmit the waves.
Using RFID to track the boxes. RFID reader can read the tags up to 5m in distance. 
RFID reader: Consist of antenna, Computer to store memory, and integrated circuit
Types of Tags
Passive Tag
It does not require battery to operate as the power is generated through the radio frequency from the reader that is induced in the antenna. It is less costly, small in size and has a shorter range of operation out of the 3 tags.
Active tagIt operates with the battery and it's life span is based on the battery's life itself. Though it has the longest range of operations(up to 1.5km in open area) compared to the other 2 tags, it is more expensive and larger in size.
Semi-active tags is assisted by battery and is the combination of both passive and active functions as its name suggested. The passive component in the tag will be triggered when it is energised by electromagnetic field. It has longer range as compared to passive tags.
harlo~ this is a new beginning of my RFID journal that is going to be recorded down daily as a part of my online assignment grades..so must do consistently otherwise will deduct marks T_T jia you~
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