With the increasing application of unmanned aerial vehicles (UAVs), higher requirements are put forward for accurate location identification in production, storage, flight management and other links. This standard unifies the encoding method of three-dimensional spatial location information by introducing the Beidou grid location code (BGC), solving the problems of inconsistent coordinate projection, insufficient spatial range expression and low calculation efficiency in the past.
| Coding type | Composition structure | Coding length |
|---|---|---|
| Production location identification code | BGC + production date | 17 digits |
| User custody location identification code | BGC + registration date | 22 digits |
| Flight management real-time location identification code | BGC + flight mission time | varies |
The following table shows the grid level and code length corresponding to different unmanned aerial vehicle sizes, which helps to understand the technical details of the standard.
| UAV size | Grid level | Code length/bit | Grid size (approximately) |
|---|---|---|---|
| <0.5 m | 8 | 26 | 1 m×1 m |
| 0.5 m~8 m | 7 | 23 | 8 m×8 m |
| >8 m | 6 | 20 | 64m×64m |
Case analysis: Taking the real-time location identification coding of flight management as an example, assuming that a UAV with a size of 1 meter should use 8-level grid coding when performing a mission. After obtaining the longitude and latitude through the Beidou system, convert them into BGC to ensure the synchronization of information between the control station and the ground end.
Specific steps:1. Obtain real-time location; 2. Convert to BGC of the corresponding level; 3. Add task timestamp; 4. Transmit to the management platform for monitoring.
