Research Article
[Retracted] Health Detection System for Sports Dancers during Training Based on an Image Processing Technology
Table 1
Comparison of wireless communication technologies.
| | Wi-Fi | Bluetooth | ZigBee | RFID | NFC |
| Transfer speed | 11–50 Mbps | 1 Mbps | 100 kbps | 1 kbps | 424 kbps | Communication distance | 20–200 m | 20–100 m | 2–20 m | 1–10 m | 0–20 m | Frequency band | 2.4 GHz | 2.4 GHz | 2.4 GHz | 1–100 GHz | 13.56 GHz | Power consumption | 10–50 mA | 20 mA | 5 mA | 10 mA | 10 mA | Main application | PC, PDA | Car, multimedia | Wireless sensor | Barcode | Near field communication |
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