embeded project documentaion
Post on 11-Mar-2016
233 Views
Preview:
DESCRIPTION
TRANSCRIPT
بسم اهلل الرحمن الرحيم
E M B E D D E D L A B F I N A L P R O J E C T
4- FLOOR ELEVATOR
Constructed By: Baraa Bat.heesh (2070484, Section 3) Ja’afar R. Azim ( 0076423, Sec. 6) Abdullah Al- Zir (0076504, Sec. 10) Malek Z. Abu - Ghanemeh (0076627 Sec. 10)
[1- Description]
[2- How it Works ?
[3- Flow Charts]
[4- Additional Notes]
4-Floors Elevator
1- Description
Section
1
Our project main objective is
to design & implement a fully
functional 4-floor elevator
model, using microcontrollers
technology.
Work Supervision:
We worked as a one team, but everyone were
responsible of supervision of a specific task of the
project.
4-Floor Elevator
2- How it Works ?
Ho
w it
Wo
rks?
The user can call the elevator using two
buttons (up & down) which are located
beside the external elevator door.
Those buttons are used to decide the
travel direction.
When the user is inside the elevator
there are four buttons, numbered 0,1, 2
and 3, he can specify the destination
floor using them.
To be sure from his choice, the
corresponding floor’s number is shown
on a 7-segment display which tracks the
elevator’s motion .
When the elevator moves, the number
of the last floor reached will be
displayed on the 7-segment display.
An additional security-
property is added to the
system:
o Visitors of the fourth floor are
identified by a certain code number,
known by trusted visitors only.
o Any person who tries to reach floor 4
without the correct code, for two times,
will be warned by a message to notify
him.
4-Floor Elevator
3- System Flow Charts
Flo
w
Ch
arts
IN THIS SECTION:
Main Flow Chart
Ground, First, Second and Third Floor Flow Charts
The Model using a simulator.
4-Floors Elevator
4- Additional Notes:
Ad
ditio
nal
No
tes
IN THIS SECTION:
Tools Used.
Elevator Priority.
Security Notes.
Bread-Board:
A board that has internal connections, to
Carry out Any circuit we want to implement on .
Microcontroller:
We have Used The
“PIC16F877A” Microcontroller, a
powerful controller to control such
application. It has enough number of
Ports to carry out any buttons or
switches needed by our project.
Wires:
Simple Copper wires, that has low resistance.
Voltage Regulator:
We have used a +5 Volt voltage
regulator, to give a constant voltage at specific
places in our project circuit.
Resistors:
A combination of 330, 4K,10K Resistors
used in various places to limit current, protect, pull up some inputs or
outputs.
Push-Buttons:
A simple SPST Push-Buttons to be placed
on each floor, and in the elevator also. Those
were used to call the elevator to a specified
Floor.
KeyPad:
4*4 Keypad, used for Entering the Password for accessing the 4 th
Floor.
LCD:
40*2 line LCD display is used to interact with users such as
displaying messages to Enter the Password Needed for the Fourth Floor.
7-Segment-Display:
A Common Cathode 7-Seg is used to display
the Floor At which we are at.
DC-Motor:
An H-Bridge Controlled Dc-Motor is used to take the Elevator Up
and down through the Bulding.
H-Bridge:
Used to Control The DC-Motor to go Up or down.
P
riority
&
Security
No
tes
Priority:
When the elevator moves from
lower floor to upper floor that’s not
the direct upper one, such from the
first floor to third floor, it will test
that if the upper floor key in the
between floor is pressed, so the
passenger need to move up the
elevator will stop and take him/her
with it, but if the lower key is
pressed it will not stop and will
remember to return to that floor in the other turn when it
reach to its destination where it will reverse its direction
to be gone down .
Same thing happen when it goes down but not to the
direct lower floor.
When the elevator is in stop mode it
will wait for any person to press any
button from any floor to go there.
Security Notes:
If someone enters the code incorrectly for two times, the elevator will go to the ground floor.
top related