dji GUIDANCE - Page 21

Guidance User Manual
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2015 DJI. All Rights Reserved.
21
Calibration Procedures
Use the following procedures to complete the calibration process.
1.Selectoneofthecalibrationdirections-front(VBUS1),right(VBUS2),rear(VBUS3),left(VBUS4)or
down (VBUS5).
2. Click
Start
to begin, and a large ring will appear on the calibration board.
3. Pick up the carrier and point the Guidance Sensor of the selected direction at the calibration board. A
crossed circle will appear once the camera captures the board. Move the carrier up, down, left and
right,ataxeddistancefromthescreen,toadjustthepositionofthecrossedcircleuntilthecenters
of the crossed circle and ring coincide. Then move carrier forwards and backwards to adjust the
size of the crossed circle until the sizes of the crossed circle and ring are roughly equal. If the two
conditions above are met, the ring will begin to move after three seconds.
4. Move the carrier so that the crossed circle follows the ring. The two shapes should roughly overlap.
5. While moving the carrier, the software will gather the required images to compute the parameters.
The progress is indicated by the progress bar. Once this process is complete, you may lay down the
carrier while computation takes place. The computed parameters will be sent to the Guidance Core
automatically and a notice will tell you when the process is complete.
6. You have now calibrated one Guidance Sensor. Repeat the above procedures to calibrate the other
Guidance Sensors.
Calibration FAQ
1. Q: No ring appears on the calibration board after clicking
Start
.
A: Check the connection between the Guidance Core and your PC.
2. Q: No crossed circle appears on the calibration board after pointing the camera at the board.
A: Ensure the camera is roughly 30cm away from the computer screen and gently move it back and
forth. Make sure the camera is not blocked by cables or other objects.
3. Q: The ring does not move.
A: The crossed circle will not move within the first three seconds of appearance. After the three
seconds, the crossed circle will only move if the sizes and positions of the crossed circle and the
ring are within a certain range. Note that moving the Guidance Sensor back and forth adjusts the
size of the crossed circle, while moving it up, down, left and right adjusts its position.
4. Q: The crossed circle is unable to keep up with the movement of the ring.
A: The movement of the ring only acts as a guide for speed and movement path. In practice, the
crossed circle only needs to loosely follow the movement path of the ring. Slight deviations in their