getting started slam implementation

[vreg]

How is SLAM actually implemented in a mobile robot?

From what I understand, the robot has some sensors such as laser sensor, ultrasonic sensors, etc from which it acquires data. How is this data used? And what algorithm does the mobile robot follow to navigate the area?

Does the robot simply go about randomly till it collides with an object and then changes its path?

 

[D.A.(Tony)Stewart]

Extended Kalman Filter will predict max likelihood of collision to prevent slamming.

https://ceit.aut.ac.ir/~shiry/lecture/robotics/Robot Navigation/Introduction to SLAM.pdf

SLAM = Simultaneous Localization and Mapping

 

[vreg]

Does a mobile robot require slam implementation to navigate using a wireless controller?

 

[D.A.(Tony)Stewart]

Does a mobile robot require slam implementation to navigate using a wireless controller?

NO.. just autonomous navigation or remote control macro move from xy1 to xy2.

 

[vreg]

NO.. just autonomous navigation or remote control macro move from xy1 to xy2.

I think I put it in a wrong way. I am not talking about sending directions such as up,down,left,right using controller. I want to just signal the robot from a different location to arrive at the location using independent path planning and navigation.
With respect to that, how will the robot have any knowledge of the positions xy1 and xy2? And any obstacles in between, the exact path to follow, etc.?
Thanks.