Why:
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Vaisala recommends using factory default dry road coefficients especially when driving on typical old asphalt.
How:
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Option C: drive on local dry road with the most common surface type.
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Option A: use factory default dry road coefficients temporarily before local dry road becomes available. Recommended for typical asphalt.
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Option B: copy local dry road coefficients from another sensor.
Which commands are needed to implement this?
Command: SET REFERENCES
- With parameter 1 (ROAD)
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Action takes typically 30–60 seconds
What the command does?
- Changes dry road coefficient parameters 0x53, 0x54, and 0x55 (1 parameter for each laser).
- When started, changes status bit 1 (reference setting ongoing) to 1 = ongoing.
- When finished, changes back to 0 = not ongoing.
What is needed for command to succeed?
- Sensor should not report errors related to reference setting.
How do I know did the command succeed?
- If status of reference setting ongoing is 0 = not ongoing.
- There are no errors.