Can someone help me get an answer to this problem, struggling with understanding it. Thanks will rate thumbs up.

6. Suppose that there exists a room with two doors - one through which people enter the room, and another through which they exit. Each door has a treadplate- and-photocell apparatus that changes a signal (x) from 1 to 0 when a human steps on the plate and walks through the door. A similar device is attached to the exit door, providing a signal (y) which goes from 1 to 0 when someone exits. The doors are configured such that: only one person can pass at a time, and thus only one person at a time is counted nobody can exit through the entrance, nor enter through the exit; each door is one-way The datapath circuit consists of an up-down counter with a display that shows how many people are in the room. Draw a block diagram and a corresponding ASMD chart for a digital system that can count the number of people in a room. You may assume that the room starts empty. [10pts] Note: there is a practical application to this problem - bars and other venues often have occupancy limits. They usually employ guards ("bouncers") to monitor and control these numbers; this would automate that process, and ensure compliance with the Fire Marshal's office orders respecting the venue