Mistake Block diagram 5

Sometimes thing doesn't goes well even you had it planned. this is my early block diagram for this project

Early Block Diagram.

. in this block diagram, it explain on how the robot works. sadly this   is need to be reconstruct again since the application is not suitable for this project. Sir Razak has asked me to do a robot which can follow a target but i misunderstand about the concept of the robot which is to calculate the distance it will travel. From here i will change on my project title which is Mobile Robot Tracking System. Earlier post i have mention about the sensor that i have been researching. Sir Razak has try to get me the laser sensor but its seem impossible since the market price is too high, the option has been cut down to 2 sensors, which is the Ultrasonic sensor and the Infrared sensor. i will need to re-do my block diagram and also the flowchart of the project.