rfid개념

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작성자메르스데 조회 8회 작성일 2020-09-22 22:17:07 댓글 0

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RFID의 개념과 활용

2019-01경영정보시스템 과제입니다.

What is RFID? How RFID works? RFID Explained in Detail

In this video, RFID (Radio Frequency Identification) Technolgy has been explained.

So, in this video, what is RFID, what is inside this RFID system, how RFID works, and application of RFID have been explained.

What is RFID?

RFID is technology which works on radio frequency and it is used for the auto-identification for the different object.

The RFID system mainly consists of two parts.
1) RFID Reader or Interrogator
2) RFID Tags

In this RFID system, this RFID reader continuously sends radio waves of a particular frequency. If the object, on which this RFID tag is attached is within the range of this radio waves then it sends the feedback back to this RFID reader.
And based on this feedback, RFID reader identifies the object.

RFID tags:

Now, three different kinds of RFID tags are commercially available.
1) Passive tags
2) Active tags
3) Semi-passive tags

These passive tags do not have any power supply. They used to get their power from the incoming radio waves from the Readers.

While active tags have a power source for their internal circuitries. And for sending the response to the reader also, it uses its own power supply.

In the case of semi-passive tags, they have a power supply for internal circuitries, but for sending the response it relies on the radio waves received from the Reader.

Operating Frequency:

This RFID system is mainly operated in three frequency bands.
1) LF: Low-Frequency band
2) HF: High-Frequency band
3) UHF: Ultra High-Frequency band

The exact frequency of operation varies from country to country.

Operating Principles:

Most of the RFID systems operate on any of this two principles.
1) Load Modulation
2) Backscattered Modulations

Applications of RFID:
1. Institutions: Library, Hospitals, Schools, and Colleges
2. Transportation and Logistics
3. Access Control
4. Sports
5. Animal Tracking

Timestamps for the different topics in the video is given below:
0:40 What is RFID?

1:56 What is inside this RFID chip?

4:42 Operating Frequencies for the RFID Systems

5:27 Working Principle of RFID Systems

This video will be helpful to everyone in understanding the concept of RFID Technology.

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Music Credit:
http://www.bensound.com/
Kwabena litte : Rapture is near
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Reb6137 : If company puts one of these EPC RFIDs in clothing, can the company track you?
Chaitanya Kapadiya : Awesome
mathIsART : And he causes all, both small and great, rich and poor, free and bond, to receive a mark in their right hand, or in their foreheads: And that no man might buy or sell, save he that had the mark, or the name of the beast, or the number of his name. Here is wisdom. Let him that has understanding count the number of the beast: for it is the number of a man; and his number is 666.
Revelation 13:16‭-‬18
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the German 3D Printing Nerd : You need to learn to Speak English Better Your English is Shit

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