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Design And Construction Of A Multiperpose Security System With Alarm And Display
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LIST OF ABBREVIATIONS AND SYMBOLS
IC Integrated Circuit
O/P Output
I/P Input
Vcc +5 Volt Supply
GND Ground or Earth
NE Segment
FF Flip Flop
TTL Transistor-transistor logic
CMOS Complementary Metallic Oxide Semi Conductor Logic
CLK Clock
CLR Clear
F Frequency
C(exp) Exponential
C/M Count Up
C/O Count Down
EL Enabled Input
EO Enabled Output
NPN Negative-Positive-Negative
VCE Collector Emitter Voltage
VBE Base-Emitter Voltage
VCB Collector Base Voltage
Sat Saturation
IC Collector
IB Base Current
RB Base Current
L/S Loud Speaker
KΩ Kilo ohms
KHZ Kilo-hertz
Dip Dual in line package
V Volts
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ABSRACT - [ Total Page(s): 1 ]This project report is a thesis written specifically to cover the design analysis construction, test and packaging of a multipurpose security system from electric component that can be easily be obtainable from the market.The report discusses the various unit and stages of the alarm system, thesis include:-a) Clock generation and frequency division unit.b) The control and section unit, comprising of a one shot 555 timer multiplexer, sound amplifier and the latch.c) The detection and switching un ... Continue reading---
LIST OF TABLES - [ Total Page(s): 1 ]LIST OF TABLES4.01 Table of various frequencies of operation from the oscillator unit4.11 Table of result of frequency derision4.12 Table for the 74LS153 multiplexer operation4.31 Functional table for D-type flip flop 74LS1754.41 Functional table of 74LS148 priority encoder. ... Continue reading---
LIST OF FIGURES - [ Total Page(s): 1 ]LIST OF FIGURES1.1 Block diagram of multi-purpose alarm system3.1 Flowchart on design and construction procedures4.1 Internal circuit of 555 timer IC4.2 Astable multivibrator circuit using inverters4.3 Output waveform of 555 timer oscillator4.4 Astable circuit configuration, using Rb = Rs + Rp4.5 One short configuration using 555 timer IC unit 4.6 Waveform of triggered mode4.7 One shot multivibrator circuit4.8 Pin configuration of 74LS1914.11 Functional block diagram for 74LS1534.14 Circuit ... Continue reading---
TABLE OF CONTENTS - [ Total Page(s): 1 ]Title pageApproval pageDedicationAcknowledgementAbstractList of tablesList of abbreviationsTable of contentsCHAPTER ONEIntroductionObjective of the projectProject layoutBackground informationBlock diagramCHAPTER TWOLiterature ReviewCHAPTER THREEDetection and switching unitFire detectorHuman shadow detectorHuman touch sensorThe hatch circuit The alarm circuitThe display boardPower supply unitCHAPTER FOURMethodologyObtaining project topic and specificationsChoosing a suitable circuitSelecting com ... Continue reading---
CHAPTER ONE - [ Total Page(s): 2 ]OBJECTIVE OF THE PROJECTAlarms are frequently used for detecting the presence of an intruder. These include signaling the presence of unwanted moisture or liquids, presence or absence of light, the removal of a small object, the unwanted opening of a door, power outage, and presence of an unwanted signal in an electronic gadgets etc.Most electronics alarms are either activated when a circuit is opened or short circuited. However, the aim or objective of the project is to build a multi-purpose al ... Continue reading---
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ABSRACT - [ Total Page(s): 1 ]This project report is a thesis written specifically to cover the design analysis construction, test and packaging of a multipurpose security system from electric component that can be easily be obtainable from the market.The report discusses the various unit and stages of the alarm system, thesis include:-a) Clock generation and frequency division unit.b) The control and section unit, comprising of a one shot 555 timer multiplexer, sound amplifier and the latch.c) The detection and switching un ... Continue reading---
LIST OF ABRIVATIONS -- [Total Page(s) 1]
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LIST OF ABRIVATIONS -- [Total Page(s) 1]
Page 1 of 1