Fatimah-slide Fyp 2
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Transcript of Fatimah-slide Fyp 2
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CONTENTS
P
S
MII
1.0 INTRODUCTION1.1 BACKGROUND OF STUDY
1.2 OBJECTIVE OF STUDY
1.3 PROBLEM STATEMENT
1.4 SCOPE OF STUDY
2.0 LITERATURE REVIEW
3.0 METHODOLOGY
4.0 RESULTS
5.0
LIMITATION
6.0 CONCLUSION
7.0 REFERENCES
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1.0 INTRODUCTION
RF refers to radio frequency, the mode of communication forwireless technologies of all kinds, including cordless phones,radar, ham radio, GPS, radio and television broadcasts.
RF technology is widely used in our life without we noticed it.From baby monitors to cell phones, Bluetooth to remotecontrol toys,RF waves are all around us. RF waves areelectromagnetic waves which propagate at the speed of light, or
186,000 miles per second (300,000 km/s).
1.1 BACKGROUND OF STUDY
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RF refers to radio frequency, the mode of communication forwireless technologies of all kinds, including cordless phones,radar, ham radio, GPS, radio and television broadcasts.
RF technology is widely used in our life without we noticed it.From baby monitors to cell phones, Bluetooth to remotecontrol toys,RF waves are all around us. RF waves areelectromagnetic waves which propagate at the speed of light, or
186,000 miles per second (300,000 km/s).
1.1 C ROUND O TUD
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1.2 OBJECTIVES
To design acircuit that can
perform as asmoke alarmsystem that actwirelessly byusingmicrocontroller
To design thesmoke sensorthat can be setby threedifferentthreshold
To create a C
program tocontrol theoperation ofwireless smokedetector system
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1.3 PRO LEM T TEMENT
1
The limitation of smoke detector systemare more spacing and wire required.
2
Many building codes require that new
construction what is referred to as"interconnected smoke detector systems"in place.
3
Most of smoke detector are not locallyproduct and import from oversea
4 The price offers in the market too expensive.
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1.4 SCOPE OF PROJECT
Analysis
Do some of the analysis aboutdistance and types of smoke that canbe detected.
Hardware
Interface the devices on microcontroller
SoftwareBuild a C programming code for wireless smoke
system.
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2.0 LITER TURE REVIEWYEAR AUTHORS
May , 2010 MICROCONTROLLER BASEDREMOTECONTROLLOCATORUSING RADIOFEQUENCY SIGNALBy Suhaila Binti Mohd Najib, Universiti
Teknologi Malaysia
May, 2010 HUMIDITY ANDGAS SENSORMONITORING SYSTEM INAN IDEALENVIRONMENT
By Ezla Najwat Bt Ahyat, UniversitiTeknologi Malaysia
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3.0 METHODOLOGY : PART 1
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3.0 METHODOLOGY : PART 2
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3.1BLOKDIAGRAM
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3.3 O TW RE DEVELOPMENT
PIC KIT2
Programmer
C language (MPLABIDE ENVIRONMENT)Language
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4.0 RESULT
Type of the
material
Initial
voltage of gas
sensor
( decimal)
Final voltage
of smoke
sensor
(decimal)
Comment
Paper 0.938 1.0943 Smokedetected
Plastic 0.938 1.246 Smoke
detectedTissue 0.938 4.0203 Smoke detected
y Types of the material detected by gas sensor
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4.1 RESULT
Place Distance Comment
Open air 12cm Signal is sent
Open air withobstacle
10 cm Signal is sent
Close place 7cm Signal is sent
The capability of wireless smoke system
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4.2 RESULT
Range of rs Gas concentration
(ppm)
Comment
RS
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4.3 RESULT
Range of RS ADC value(V)
Normal condition without
threshold(rs)
4.99
RS
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5.0 LIMIT TION
Gas sensor
Sensitivity of gas sensor cannot be predictable and controlled.
Only sensitive at rs 0.6 to 0.3.
RF module
Only can send the data in short range of distance.
The signal being sent sometimes is not stable and uncontrolled.
Easily broken without knowing the right method to handle andused it
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6.0 CONCLU ION
y The objective almost complete and fulfill the desiredrequirement.
y Wireless smoke detector is an intelligent version of smokedetector can be market extensively.
y The number of accident due to leaking of contaminant gascan be reduced by giving an awareness of using wirelesssmoke detector.
y The functionality of wireless smoke device can be upgrade to
attract people attention and used this product.y The weight and functionality of wireless smoke system
should be light and user friendly.
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Websites
y http://www.totalcomputing.net/index.asp?PageAction=VIEWPROD&ProdID=3689
y http://www.acehardware.com/product/index.jsp?productId=2432729
y http://en.wikipedia.org/wiki/Smoke_detector
y http://courses.engr.illinois.edu/ece445/?f=Projects&sem=spring2007
y
http://www.wisegeek.com/what-is-rf.htm
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Q&A
THAN OU