An alternative to active RFID (Radio Frequency Identification) is passive RFID. Here's a comparison:
Passive RFID:
Power Source: Does not have an internal power source. The RFID tag is powered by the electromagnetic energy transmitted by the RFID reader.
Range: Shorter read range compared to active RFID, typically from a few centimeters to a few meters.
Cost: Generally less expensive than
active RFID tags, making them ideal for applications where cost is a significant factor.
Lifespan: Can last indefinitely as they do not rely on a battery.
Common Uses: Inventory management, access control, and asset tracking where the range is not a critical factor.
Semi-Passive RFID:
Power Source: Contains a small battery that powers the chip's circuitry but relies on the RFID reader's signal for communication.
Range: Greater range than passive RFID but typically less than active RFID.
Cost: More expensive than passive RFID but less expensive than active RFID.
Common Uses: Applications requiring longer range and better performance than passive RFID but where active RFID's full capabilities aren't necessary.
Comparison:
Active RFID: Suitable for long-range tracking, like in logistics or real-time location systems (RTLS).
Passive RFID: Ideal for cost-sensitive applications with shorter range requirements.
Each type has its strengths and is suited to different use cases depending on factors like range, cost, and the specific application.
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