Two alarm circuits are presented here. One produces bird-chirping sound and the other British police siren tone. Fig. 1 shows the circuit of the birdchirping- sound alarm unit along with the circuit of the control unit. Fig. 2 shows the circuit of only the British police siren tone generator, which has
to be integrated with the control circuit portion of Fig. 1 at points A and B to complete the circuit diagram of automated alarm

http://ziddudownload/5196571/AUTOMATEDALARMCIRCUITS_1.pdf.html ....etc

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HOW TO WRITE A REPORT ON AUTOMATED ALARM CIRCUITS ....etc

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SUBMITTED BY
MOHIT BATRA
SAHIL DUREJA
BHARAT BHUSHAN


INTRODUCTION
The need for a device that can detect and extinguish a fire on its own is long past due. Many house fires originate when someone is either sleeping or not home. With the invention of such a device, people and property can be saved at a much higher rate with relatively minimal damage caused by the fire. Our task as electrical engineers was to design and build a prototype system that could autonomously detect and extinguish a fire. Also aim ....etc

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AUTOMATED ALARM CIRCUITS
ACKOWLEDGEMENT
Through perseverance and enthusiasm combined with effort in the right direction can bring forth the thing called success but the realization of the harsh reality that the path towards success is full of myriads, temptations, impediments and pitfalls often proves to be disheartening in such situation, it is the able guidance of knowledgeable persons that steers one through difficulties and help her achieve success.

We are highly obliged to express our deep sense of great gratitud ....etc

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Hey Guyz, I really need some material on the topic. I've gotten some stuffs, but i'm not really satisfied with them. pls kindly help me out.......Thanks(in advance)




Shoutout to Computer-science-crazy. You're the best ....etc

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Simple Fire Alarm Circuit
Here is a simple fire alarm circuit based on a LDR and lamp pair for sensing the fire.The alarm works by sensing the smoke produced during fire.The circuit produces an audible alarm when the fire breaks out with smoke.
When there is no smoke the light from the bulb will be directly falling on the LDR.The LDR resistance will be low and so the voltage across it (below .6V).The transistor will be OFF and nothing happens.When there is sufficient smoke to mask the light from falling on LDR, the ....etc

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for investigatory projects in physics for class 12 on fire alarm ? ....etc

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Abstract:
It is an Intelligent IP based Intrusion Alarm with Home Automation Panel,to protect offices,home from hazards such as fire, theft, gun-point threat, and protecting safe deposit lockers/vaults, cash carrying mobile vans, ATM's etc. Shops and Establishments, especially jewellery shops to protect premises from hazards such as fire, theft, gun-point threat...etc, the connection is manly Wireless technology like Mobile phones,PDA, wireless internet,(WiFi),..etc ....etc

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Respected sir,

I am doing mechanical diploma from government polytechnic pune.
so i want idea about above topic. And what about its cost. Can we help me for this project. ....etc

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How to develop a fire and smoke alarm system?
Please give the full detail's for doing this as a project. ....etc

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