How to check the position accuracy.

Issue

How to check the position accuracy.

Answer

You can check it from “Position Measurement” in the “Guidance Settings” of the Machine Guidance menu.

解説

1) Preparation

Please match the standards of each job site.
When checking the accuracy, make sure that the localization file and the coordinates of the reference point are correct.

Please perform the check when the GNSS information on the top of the main screen is Fix (green).

2) How to check

If there is a reference point or a reference stake installed at the operation site, move the vehicle to them.

It is preferable to use a total station to compare the results with the position measurement, if a total station is not available, move the vehicle as close as possible to the reference point and make sure that there is no significant deviation in position or height.

• Launch “Machine Guidance."
• Tap “Menu (gear symbol)."
• Touch “Guidance Settings."
• Select “Position Measurement."
• Choose the “Control Point” to be used for measurement.
• To set manually, tap the + button, enter the name and N/E/Z values, and touch the ✓ button.

• If GNSS is not acquired, the button will display “GNSS FIX NOT VALID”, so please acquire GNSS before performing the measurement.

Reference

Offset function / Offset function release

After calculating the “Position Coordinates”, tapping the "Matching" button on the “Offset” screen will offset the N, E, and Z displayed in the “Difference.”
Tap the “Reset” button to erase the offset values already entered.
Offset values can be entered manually.
To reflect the set offset value, touch the ✓ button in the lower right corner of the screen.