I wish to know details of components used in vk566 smoke alarm ....etc

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1. ABSTRACT
Often we find that resedntial properties,offices,buildings etc suffer disastrous consequences due to a single short circuit or a simple fire which go undetected.To avoid such losses,one can make use of a smoke alarm which would in turn inform the concerned authority by sounding a buzzer or a sound as soon as any smoke is detected thereby avoiding danger as soon as it is detected.smoke alarm circuits today are used everywhere from resedential buildings to offices.
2. INTRODUCTION
The thermis ....etc

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we want the information about Smoke and LPG Gas detection robot with wireless control. ....etc

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smoke detector using at89s52 microcontroller ppt download

The project over all consist of the following components:
1. Microcontroller ATMEL 89S52.
2. Temperature sensor LM-35.
3. Smoke sensor TGS-308.
4. 16x2 LCD.
5. Operational amplifier IC LM-324.
6. 12 Volts Buzzer.
7. 6 Volts Relay.
8. Potentiometers 10K.
9. 5 Volts Voltage regulator 7805.
10. BJT C-1383 NPN-type
11. Crystal oscillator 11.0592 Mhz.
12. LED s.
13. Push button.
14. Capacitors.
15. DB-25 Connector.
16. ISP Programmer.
17. KEIL UVision-2.
18. 9 Volts Adapter.
19 ....etc

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Optical Smoke Detector
Optical Smoke Detector contain a small photoelectric cell which triggers the alarm when the beam is disturbed by smoke. it shows better results in smoldering mattress.
read this material where its bravely explained, i hope its greatly usefull

http://home.howstuffworkshome-improvement/household-safety/fire/smoke1.htm
http://72.29.25.62/page.asp?ID=63
http://en.wikipediawiki/Smoke_detector

if you not satisfies with it please reply below
we may try to solve (needs whats facing problem) ....etc

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please send c language code and circuit diagram for smoke detector using at89s52 ....etc

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to get information about the topic fire and smoke alarm system related topic refer the page link bellow

http://seminarsprojects.net/Thread-smoke-detector ....etc

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smoke alcohol and lpg detection alarm seminar

This board can be used for measuring LPG leaks, which could be used in your home to identify gas leakage.This LPG Gas Sensor (MQ6) is used to detect dangerous LPG leak in your surrounding,home,car,storage tank and etc.This unit can be easily added to alarm unit to produce sound or visual indication of Gas/LPG.The sensor has excellent response time.It can used to sense iso-butane,LNG,Cigarette Smoke and propane.It can also be used for wireless gas leak detector project.

LPG Gas Sensor (MQ6) Feature ....etc

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Hello,
Can anyone help me to get matlab codes for fire and smoke detection in video please! ....etc

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source code of smoke alcohole lpg detection alaram

GAS LEAKAGE DETECTION & AUTO ON-OFF GAS SYSTEM
This system helps you to upgrade your safety standards, comply statutory requirements on environmental commitments and most important and basic function being prevent accidents and protect life and property from disaster. In the past, it has been a conventional practice to employ combustion apparatus such as a furnace,
heater, stove or LPG kit in cars, which utilizes a combustible vapor or gas to produce heat energy when properly ignited. In the u ....etc

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