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What is the difference between HID and RFID?
The main difference is that RFID is a broad wireless technology used to track or identify items using radio waves, while HID is a specific brand and manufacturer (HID Global) that makes proximity and smart cards using RFID technology.
What is RFID?
- Technology: Radio Frequency Identification is abbreviated as RFID. It employs radio waves to read and collect data stored on a tag that is affixed to an item.
- Function: Does not necessitate a direct line of sight. A reader emits radio waves, to which the tag replies with its distinct data.
- Uses:
Inventory monitoring, supply chain oversight, animal identification, toll collection passes, and contactless payment methods.
What is HID?
- Technology: HID Global is a brand that focuses on physical access control, secure identity solutions, and the production of ID cards.
- Function: Numerous HID cards utilize RFID technology, typically operating at a low frequency of 125kHz or higher smart card frequencies, to enable individuals to unlock doors or access computers.
- Uses: Employee ID badges, building door access, and secure authentication.
Key Comparisons
- Scope: RFID serves as the foundational technology, while HID is a company that manufactures specific security products.
- Application: RFID technology is extensively utilized for the tracking of large quantities of goods, as well as in logistics and supply chain management.