eRide
OPUS 6/
eRide
OPUS 7 GV-8620/ GV-8720
Dead Reckoning User
’
s Guide
SE16-900-002-02
14
FURUNO ELECTRIC CO., LTD. All rights reserved.
6.4 Calibration of Gyro Sensor
[Operation]
Calibration function of gyro sensor is available by driving with a several times (8 to 12 times) of right or left turn
at GNSS or GNSS+DR status of open sky level. It is available to do mix calibration with Section 6.2 and 6.3.
Turn Left
Turn Right
[Check]
When Field 17 is 5,7,13 or 15 at PERDCRI,G sentence, the calibration of gyro sensor is completed.
Example:
$PERDCRI,G,3,7,79,-8,-27,2601,2601,2601,79,-8,-27,88,44,0,7*1A
6.5 Aging and Temperature Fluctuations
Even after completion of calibration, the DR receiver will continue to estimate bias and gain during actual
operation. This is to follow changes in characteristics due to aging and temperature fluctuations.
