This document describes a fire alarm and smoke detector system designed using digital logic. The system uses inputs from an emergency switch, smoke detector, and main switch. It outputs a fire alarm and activates an automatic sprinkler system. The logic design includes OR gates, AND gates, a JK flip flop timer set to 3 seconds, a 1Hz clock, 7 segment displays, and inverters. When the smoke detector or emergency switch is activated, the alarm will sound for 3 seconds before automatically shutting off the sprinkler and alarm. The group's responsibilities for the project are also outlined.

1. Fire Alarm, Smoke Detector
and Automated Sprinkler
System

2. Lecturer
Ms Lindasalwa Binti Muda
Member 1
Mohd Sufi Bin Rani
(TB14058)
Member 2
Muhammad Hafizi Bin A.Hamid
(TB14055)
Member 3
Muhammad Syafiq Bin
Baharom (TB14031)
Group Leader
Muhamad Khairul Azhar Bin Abdul Rasid
(TB14034)
1

3. • A fire alarm system is number of devices working together to detect and warn
people through visual and audio appliances when smoke, fire, carbon
monoxide or other emergencies are present.
• Alarms may be activated from smoke detectors, and heat detectors.
• A smoke detector is a device that senses smoke, typically as an indicator of fire.

4. • Many houses don’t have a fire alarm system so we need to design
a fire alarm system using the digital logic system that all family
members can use in single-family residences.
• It must be able to detect fires at all locations, residents must be
able to activate it from convenient locations themselves, and it
must alert residents in all portions of the house.

5. • To study the working principle of fire alarm and smoke
detecting system.
• To design, construct and fire alarm system and smoke
detector using digital system.
• To implement digital logic design in the project.
• To discover fires early in their development when time will still
be available for the safe evacuation of occupants.

6. • Type of Logic
• Power
Supply
• Input
• Output
Name of Project Fire Alarm & Smoke Detector System
Main
Functions/Objective
To discover fires early in their development
when time will still be available for the safe
evacuation of occupants.
Voltage Supply 5VDC
Input
Emergency Switch, Smoke Detector and
Main Switch.
Output Fire Alarm and Automatic Sprinkler
Logic Type
i. OR Gates
ii. AND Gates
iii. JK Flip Flop (For timer 3 Seconds)
iv. Clock 1Hz Output
v. 7 Segment
vi. Inverter
vii. Indicator

7. Smoke detector
Wall
Switch

8. Switch C is the main switch
which is must always be ON in
order to activate the whole
system.
Then, Inputs A&B can trigger
the alarm when A OR B is ON.
Here the unique of the system,
if we switch OFF inputs A&B
the timer will ON and count up
from 0 to 3 second.
After 3 second it will
automatically OFF the water
sprinkler and alarm.

14. Smoke detector
Wall
Switch

15. Smoke detector
Wall
Switch

16. • Our project still need to be improve with proper timer reset using the
component that has reset on timer so that the system will operate without
adding the 2 AND gate as reset/stopper for timer counting. In real situation.
• This projects need a lot of addition to be modified such as backup system,
including water system and add another indicator for alert surrounding.
• We has learn how to be logic in alarm system from this project. This is the
basic idea for fire alarm system. For more, the circuit will more complex and
bigger than this.

18. Responsibilities
MUHAMAD KHAIRUL
AZHAR BIN ABDUL
RASID TB14034
MOHD SUFI BIN RANI
TB14058
MUHAMMAD HAFIZI
BIN A.HAMID TB14055
MUHAMMAD SYAFIQ
BIN BAHAROM
TB14031
Communication
Set up meetings  .  .  .  .
Time/ Objective
Tracking
 .  .  .  .
Take notes  .  .  .  .
Project Creation
Create an Outline  .  .
Conduct Research  .  .  .  .
Circuit Design &
Construct
 .  .
Troubleshooting  .  .  .  .
Report & Presentation
Introduction/Project
Description
 .
System Design  .  .
Conclusion and
Discussion
 .
Create slides/Visual
Aids
 .