RFID (Radio-Frequency Identification) technology is primarily used for the identification and tracking of objects, rather than for determining their precise location in the way that GPS does. RFID systems consist of tags, which are attached to objects, and readers, which communicate with the tags using radio waves.
RFID tags can be either passive or active:
Passive RFID Tags: These tags do not have their own power source. They are powered by the RFID reader's signal when in range. Passive RFID tags are generally used for short-range applications, and they respond to the reader's signal by transmitting their unique identification information. Passive RFID tags do not have built-in GPS or location tracking capabilities.
Active RFID Tags: Active tags have their own power source (usually a battery) and can transmit signals over longer distances. Active RFID tags can be used for real-time location tracking to some extent, but the precision is typically limited compared to GPS. The location information is usually determined based on the signal strength or proximity to RFID readers.
While RFID technology can be used for tracking the movement of objects within a certain range, it is not as accurate as GPS for determining precise locations. GPS provides global positioning information with high accuracy, while RFID is more suitable for localized identification and tracking within specific environments like warehouses, supply chain management, or access control systems.
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