Hello, first time robot builder here.
I want a robot that can follow a human. Right now I am planning to use an ultrasonic transmitter that will go on the user's belt. Two more transmitters will be on the robot. The robot's transmitters will send a signal to the user. The user will send a signal back giving the distance between them. Using this, I want to calculate the user's distance (obviously), speed, and acceleration. Is this a viable strategy for robot distance sensoring? In my research there seems to be a lot of different approaches, without one being the clearly superior choice.