Active RFID vs Passive RFID-difference between Active RFID and Passive RFID
This page compares Active RFID vs Passive RFID and mentions difference between Active RFID and Passive RFID.
| Features | Active RFID | Passive RFID |
|---|---|---|
| Power for RFID Tag | Power required for Tag is internally available. | Power is available for tag via energy transfer from RFID reader using RF waves. |
| Battery for Tag | Available | Not Available |
| Tag power requirement | continuously available | available in the range of RF field of the RFID reader |
| required signal strength from reader to tag | Low | High |
| coverage range | 100 meters or more as no constraint on power | 3 meters or less as there is power constraint |
| capacity for multi-tag operation (without movement) | Able to collect data from 1000s of tags using single reader. | collection of data from multiple tags is difficult and un-reliable. Good system can collect 100s of tags within 3 meters of coverage using single reader. |
| capacity for multi-tag operation (with mobility) | collects data from 20 tags at moving speed of 100 mph | collects data from 20 tags at moving speed of 3 mph or less |
| sensor | monitors and records sensor input continuously | read and transfer sensor values only when tag is powered by the reader |
| Data storage | larger capacity for read/write (about 128 KB) | smaller capacity for read/write (about 128 bytes) |
| Application#1 (Area monitoring) | possible using active RFID | not possible using passive RFID |
| Application#2 (High speed multi-tag portal) | Yes | Limited |
| Application#3 (Electronic Manifest) | Yes | No |
| Imapcts in business processes | minimal | substantial |
| common frequency of operation | 433 MHz (glabally used) | 862 MHz to 928 MHz |
RFID Tutorial
Refer RFID tutorial>> covering RFID basics including RFID terminologies, what is RFID, RFID frequencies, RFID network, factors/requirements in determining RFID network, RFID cost, RFID applications, RFID vendors/manufacturers, RFID standards and more.
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