My Sliding Door Flowchart and Evaluation

This design is more complex, but I think it's safer than ones that have a motion sensor and a side ways sliding door. This design is useful for the handicapped because both doors open, so there is plenty of room for them. They don't have to press anything for the door to open, and it opens fast. It is a fast door, and no-one as to press every thing! It's safe from non-school members because to open one must have a school member card or visitor card, which must be worn around the neck. A non-school member can't just enter because a pressure pad ensures that only as many people enter as there are cards sensed. The door doesn't leave the door frame at all. When the door is fully open, it's to high for someone to hit their head on. The only problem is, if someone forgets there card, an alarm goes off for nothing. Also, someone's wheel chair or crutches might add additional pressure, so that might also cause the alarm to go off. Other than that. it's a great design!

March 22: Inputs and Outputs

Outputs

• Gears (Clockwise/Counter Clockwise)

These are used to open and close the door. Clockwise opens, counter clockwise closes. Without these gears, the door wouldn't act much like a door (It would be either a wall or entry).

• Door part 1

This is the very top part of the door. Each door is divided into 4 sections. On all of the doors, this is always the highest and it's the only one that never moves- everything else moves to it. Without this part, the design and whole door wouldn't work. It wouldn't be very safe or weather protective either- there'd be a hole in the door!

• Door Part 2

This is the second highest part of the door. Each door is divided into 4 sections. On all of the doors, this is always just below part 1, just above part 3, and only moves once, with part 4's second movement. It goes straight from its position up to part 1. Without this part, the design and whole door wouldn't work. It wouldn't be very safe or weather protective either- there'd be a hole in the door!

• Door Part 3

This is the second lowest part of the door. Each door is divided into 4 sections. On all of the doors, this is always just below part 2, just above part 4, and only moves once, with part 4's first movement. It goes straight from its position up to part 1. Without this part, the design and whole door wouldn't work. It wouldn't be very safe or weather protective either- there'd be a hole in the door!

• Door Part 4

This is the very bottom part of the door. Each door is divided into 4 sections. On all of the doors, this is always the lowest and it's the only one that moves more than once- it starts at its position, stops by part 2 (moves with part 3), and then goes up to part 1 (moves with part 2). Without this part, the design and whole door wouldn't work. It wouldn't be very safe or weather protective either- there'd be a hole in the door!

Inputs

• Pressure Sensor

This sensor tells the door 2 things, the first being whether or not the door should close (if there's any more people coming). It also lets us now if anyone that shouldn't be there is there by telling us if there is more people than there is cards sensed. It also tells the gears when to turn counter clockwise (the clockwise turning is told by the card sensor).

• Card Sensor

This is what give's the cue for the door to open. It's ideal because it makes sure only a select few can enter, yet it doesn't slow the line to enter down. It also lets the pressure sensor know if any more people are coming and how many people have come, as well as telling the gears to start turning clockwise- counter clockwise is left for the pressure sensor to tell.

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Since February 28th to March 22: What We Did

We used Logicator Program to create a flow chart for pedestrian crossing and a burglar alarm. It was fun, and could be annoying.