Research Article
[Retracted] Regional Double-Layer, High-Precision Indoor Positioning System Based on iBeacon Network
Table 1
Design of the fingerprint information table in system database.
| | Name | Length | Data type | Is null allowed | Default value | Primary key |
| | CurrentDate | 32 | Timestamp | No | No | No | | FRID | 128 | Integer | No | Self-increasing | Yes | | RSSI1 | 8 | Integer | No | No | No | | RSSI2 | 8 | Integer | No | No | No | | RSSI3 | 8 | Integer | No | No | No | | RSSI4 | 8 | Integer | No | No | No | | Coordinate_x | 16 | Real | No | No | No | | Coordinate_y | 16 | Real | No | No | No |
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