RFID is a media that has recently become more popular along with the ubiquitous environment, and refers to a technology that can read and write information on IC chips through radio frequency bands.
Because it is not wired, it accounts for a very large portion of security solutions, and in recent years, many encryption solutions have been developed to further increase the level of security.
- A tag consisting of a chip (integrated circuit) and an antenna into which an identification code and other information are input is attached to the product to be identified.
At this time, the tag is designed to react when it meets radio waves of a specific frequency.
-Tags automatically wirelessly transmit identification codes and other information to the reader when they enter the detection range of a specific reader (The Reader that repeatedly generates radio waves such as radar).
Characteristics
At this time, the tag is designed to react when it meets radio waves of a specific frequency.
-Tags automatically wirelessly transmit identification codes and other information to the reader when they enter the detection range of a specific reader (The Reader that repeatedly generates radio waves such as radar).
1. If it is located in the wireless radio wave area, it is possible to read information on the RF tag by changing the intensity of the electric field or magnetic field in a non-contact manner.
(There's no disadvantage in securing visibility)
2. Data can be read/write/revised
3. Compared to the barcode, information processing is faster.
4. Excellent durability (Strong against temperature, dust, humidity)
5. Has a large amount of data.
6. If RF Tag is given a security function, theft prevention and forgery prevention are possible.
7. Internet-linked services are available (with advantages to the network)
8. Multiple RF Tag Data can be read at the same time.
9. No need to install it on the surface.
10. IC chips are expensive.
Classification according to frequency.
(There's no disadvantage in securing visibility)
2. Data can be read/write/revised
3. Compared to the barcode, information processing is faster.
4. Excellent durability (Strong against temperature, dust, humidity)
5. Has a large amount of data.
6. If RF Tag is given a security function, theft prevention and forgery prevention are possible.
7. Internet-linked services are available (with advantages to the network)
8. Multiple RF Tag Data can be read at the same time.
9. No need to install it on the surface.
10. IC chips are expensive.
| RFID frequency classification | personality | applicable field |
|---|---|---|
| Low frequency band(125Hz&134KHz) |
- Short recognition distance (1m or less) - Low-cost type. - Slow recognition speed. |
- Access Control - Animal identification - Inventory control |
| Intermediate frequency band(13.56MHz) |
- Mid-low price. - To induce mutual relationship. - IC Card, Smart Card, Employee ID, etc. - ISO standard card usage band. - Excellent permeability of non-metallic obstacles. |
- Access Control - Smart Card |
| High frequency band(300MHz~1GHz) |
- Higher price - Electromagnetic wave method. - High-speed transmission - Both manual and active. |
- Location tracking. - It can be widely applied to the field of long-distance ginseng. |
| Microwave(Microwave : 2.45GHz) |
- Long distance (~27m) - Fast recognition speed - If there's a shield, it doesn't recognize. - Higher price |
- Monitoring the flow of cars. - Tollgate system. |
| Telematics frequency band(5.8GHz) |
- Higher price - It's only available in Europe. |
| Barcode | magnetic card | IC card | RFID | |
|---|---|---|---|---|
| Recognition method | non-accessible | accessible | non-accessible | |
| Recognition distance | ~50cm | inside of reader | ~27m | |
| The recognition speed | 4 sec | 4 sec | 1 sec | 0.01 sec~0.1 sec |
| Accuracy rate | 95% or less | 99.9% or more | ||
| Permeability | Impossible | Possible(excluding metals) | ||
| life cycle | Within 10,000 times (4 years) | 10,000 times (5 years) | 100,000 times (60 years) | |
| Data storage | 1~100byte | 1~100byte | 16~64Kbyte | 64Kbyte 이하 |
| Data Write | impossible | possible | ||
| Card damage rate | very often | often | often | nothing |
| Tag cost | cheapest | cheap | most expensive($10 or more) | Normal($0.5~$1) |
| security capability | no secure | no secure | can’t copy | can’t copy |
| recycled | impossible | possible | ||