Combinational Logic Word Problems
Process Line Control Problem
Rods of varying length (+/-10%) travel on conveyor belt
Mechanical arm pushes rods within spec (+/-5%) to one side
Second arm pushes rods too long to other side
Rods too short stay on belt
3 light barriers (light source + photocell) as sensors
Design combinational logic to activate the arms
Understanding the Problem
Inputs are three sensors, outputs are two arm control signals
Assume sensor reads "1" when tripped, "0" otherwise