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John Lee
RFID News
RFID technology - "Control" Or "Tracking"?
2019-7-4 1:59:39 / Editor - Blanche / Source - RFIDtagworld Xminnov

RFID technology - "Control" Or "Tracking"?


Radio Frequency Identification (RFID) is a wireless communication technology that uses radio signals to identify specific purposes and read and write coherent data without the need to identify mechanical or optical contact between the fragment and the specific purpose.


The radio's signal is an electromagnetic field that is modulated into a radio frequency to transmit data from the tag attached to the item to actively identify and track the item. Some tags can lose energy in the electromagnetic field recovered from the reader when they are recognized, and do not require a battery. The tag itself has a power source and can automatically recover radio waves (electromagnetic fields modulated to radio frequencies). The tag contains information stored electronically and is identifiable within a few meters. Unlike barcodes, RF tags are not required to be within the field of view of the reader, but can also be embedded within the object being tracked.


Radio frequency identification technology is used in many industries. Attaching the tag to a car that is being consumed, the factory can easily track the progress of the car on the consumer line. The warehouse can track the location of the drug. RF tags can also be attached to livestock and pets to facilitate the positive identification of livestock and pets (positive identification means avoiding the use of multiple animals). The RFID-enabled identification card allows employees to access the locked building, and the RF response on the car can also be used to collect free road and parking fees.


RFID cannot control where an object is located or where it needs to go. In general, this technology has no control over anything, it is a way to remotely identify and track objects. The RFID system can communicate with the "brains" of autonomous objects to enable them to determine where they need to go and where they can't. For example, a passive UHF RFID reader is placed under self-driving and passive UHF tags are installed at major locations on city streets. The reader/writer and the antenna get off at the intersection to read a tag, and the tag may have the serial number 123456789. The location and instructions for the ID number in the database can be found by the computer on the vehicle and then executed based on these instructions. Likewise, the RFID system can locate tags with instructions that prohibit the car from traveling on a particular street, and the vehicle will thus avoid the street. However, the control of the car is the software on the car to command, rather than the RFID system to control the vehicle.


Therefore, RFID, as a wireless communication technology, can read data and analyze its behavior, but it cannot control certain behaviors. RFID plays a role in tracking recognition and detection.

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