INAV Experiments: OpFlow and Bosch BNO055 Secondary IMU
Автор: FPV University
Загружено: 2019-10-24
Просмотров: 17581
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Yes, it's just another quad. It has a twist tho. There are two, (or 5 if you count in details) extra sensors installed on it.
The first is Matek OpFlow (optical flow) board. What is op-flow? It's the same as in optical computer mice. It allows to keep position indoors or without GPS signal only by observing the ground. Of course, the ground has to be a nice high-contrast pattern with enough ambient light. As en extra, Matek OpFlow board has a VL53L0X laser time-of-flight rangefinder to make all that math work like expected.
The second extra sensor in Bosch BNO055 which I plan to add as a secondary IMU option for INAV. Not secondary gyro, but whole IMU that computes angles and angular velocities using sensor fusion from gyroscope, accelerometer, and magnetometer. The first bench tests were quite optimistic and I'm looking forward to testing it in a real flight.
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