A sliding door is a type of door which opens horizontally by sliding, whereby the door is either mounted on or suspended from a track. Some sliding doors contain a motor and activation system to open them. These are called sliding door operators. Sliding door operators are typically used on the outside doors of large retail businesses. A sliding door operator reopens the door if it closes into an obstacle. However, most operators use sensors to prevent the door from ever coming into contact with a user in the first place. The simplest sensor is a light beam across the opening. An obstacle in the path of the closing door breaks the beam, indicating its presence. Infrared and radar safety sensors are also commonly used.

1. University of Duhok
Faculty Of Engineering And Applied Science
School Of Engineering / Electrical And Computer
Department
 Project Name :- SlidingDoor
 Student'sName :- Mohamed Hayder
 Group Names:-1)HevalShamal, 2)Ava Khazi,
3)Jovan Mohamed
Supervisor in charge:-
Herwan Mohamed

2. Introduction:-
A sliding door is a type of door which opens horizontally by
sliding, whereby the door is either mounted on or suspended
from a track. Some sliding doors contain a motor and activation
system to open them. These are called sliding door operators.
Sliding door operators are typically used on the outside doors of
large retail businesses.
A sliding door operator reopens the door if it closes into an
obstacle. However, most operators use sensors to prevent the
door from ever coming into contact with a user in the first place.
The simplest sensor is a light beam across the opening. An
obstacle in the path of the closing door breaks the beam,
indicating its presence. Infrared and radar safety sensors are
also commonly used.
We can assume that if c=0 that means the door is opened by
force and when c=1 then it's closed by force also. And for h
when h=1 it means that the door is opened manually and like
wise and for p when p=1 it means that a person is detected.
From these information we can construct a truth table for the
sliding door and because we have three variables then we would
have 8 possibilities for the door to open or close as shown by
the truth table below and after we construct our truth table we
can draw the K-map as shown below.

3. If we take the minterms from the truth table so we can write the
following Boolean function.
F=chp+chp+chp
= c[hp+hp+hp]=c[hp+h(p+p)]=chp+ch
By taking the 1's from the K-map we can write the (SOP)terms
by the following equation and also draw it's equivalent circuit
diagram.
SOP=cp+ch=c(p+h)
c h p F
0 0 0 0
0 0 1 1
0 1 0 1
0 1 1 1
1 0 0 0
1 0 1 0
1 1 0 0
1 1 1 0
0 0
1 0
1 0
1 0

4. And from the circuit diagram above we can find the cost of this
circuit and it will be 4 inputs and 2 gates so the result will be 6.
And also we can draw the electric circuit it.
From the SOP equation we can write it's NAND-NAND
equivalent circuit diagram as shown in the figure below.
F=(cp)(ch)
And the cost of this circuit will be 3 gates and 6 inputs so the
final result will be 9.
L1
1.0mH
R1
1.0k
V1
5 V
J1
Key = A
J2
Key = A
J3
Key = A

5. And by taking the 0's from the K-map we can write the (POS)
terms by the following equation and also after that we can draw
it's circuit diagram.
POS=(h+p)(c)
.
And the cost of the above circuit would be 4 inputs and two
gates so the result will be 6.
From the POS function we can write it's NOR-NOR equivalent
circuit diagram and also draw the circuit.
F=(h+p)+(c)
And the cost of this circuit diagram is also 6 , consists of 2 gates
and 4 inputs.

6. Now we will implement the NOR-NOR logic gate using Quartus
programme.
1. Run Quartus Software.
2. From the file menu select New project wizard.
3. In the first pop-up window(shown in figure1), you have to
enter the directory(folder) where you want to store your
project files and the name of the design.
4. The next pop-up window(figure2) shows the files currently
included in the project and asks if any more should be added.
Click Next.
5. The screen in (Figure3) select the device family (Cyclone 2)
and target device (EP2C35F672C6) for the project. Click
next after making these selections.
6. The next screen (Figure4) allows the user to select various
third-party software tools as plug in to the Quartus software.
This feature will jot be used, just click Next.
7. The final screen (Figure5) is a summary of project settings
provided by the user , click Finish to exit the wizard.

7. After that we design our circuit diagram by using the Graphic
Editor, from the file menu select new then select Block
diagram/Schematic File. To insert the components on the Block
diagram we can simply do that by double click on any Blank
area of the Block, or from the AND gate shortcut displayed on
the right, or from edit menu then select insert symbol. Then this
window will be displayed.

8. After completing the design we have to save it by selecting save
from the file menu.
Once we finished our design, we should compile it to check for
errors. And we can do that simply by selecting Start
Compilation from the processing menu. After the Compilation
finished without any errors , we can simulate the Waveform.
To do that we have to do the following steps:-
1) Click on the File then new then Vector waveform file to get a
waveform editor.
NOR2
inst
NOR2
inst1
VCC
h INPUT
VCC
p INPUT
VCC
c INPUT

9. 2) Then we have to specify the simulation end time
Edit menu → End time (for this example choose 20 µs).
3) Select View → Fit in Window, to show entire output for the
simulated waveform.
4) To add waveform to the Window, Edit menu then select Insert
Node or Bus then click on the Node Finder from the menu.
5) The time period for each input waveform (c,h,p) can be
entered by right click on for example C then select Value then
Clock. Here the period of the first signal must be half of the
second, and the period of the second signal must be half of
the third and so on ( to include all the possibilities of the
truth table). Here we chose the period of signal c to be 3µs,
h=6µs and p=9µs).
6) We save the Waveform file extension .vwf
After finishing these steps, we have Functional simulation
,Functional simulation verify the correctness of the design with
no concerning about timing issues. To perform functional
simulation click processing menu → simulator tool, and do as in
the figure below.

10. After making these steps then we should get the result as shown
in the figure below