Hello,
I would use my SRF08 sonars at front of my robot (70 x 70 cm, 25 cm height) to detect true obstacle.
But actualy it detect the first blade of grass, because the detection field angle is to wide.
I have tried to put a cylinder of 5 cm long around sonar cylinders, and to discard measures before 8 cm.
But it doesn’t works weel.
Any idea to get a more narrow field angle?
Best regards.
Hello @FPI ,
Sorry for the late reply.
This sensor wouldn’t give you an accurate reading outdoor but you can try to tune it up with some filters.
https://www.researchgate.net/publication/324075720_IMPROVING_THE_LOCALIZATION_OF_ELECTRIC_WHEELCHAIR_BY_USING_PARTICLE_FILTER
If you need to avoid the issue with the reading angel, you can consider using IR proximity sensors and laser rangefinders.
Let us know if you need further assistance.
Sincerely,
