Mumbai-400058‚ India‚ ekta vira@ymail.com Abstract Most of the smoke alarms available in the market use one or another kind of smoke sensor which increases the cost and also require complicated interfacing circuitry around it. But this smoke alarm circuit uses readily available photon-coupled interrupter module as smoke detector. The functioning of this smoke alarm is to continuously detect smoke and automatically activate the alarm in case of dense smoke. Loud sound is heard continuously indicating
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Infrared security alarm Introduction: Not so long ago an alarm was a fairly rare sight‚ however now almost every house has an alarm of some kind. One common kind of security system is an infrared home security system. These are so popular because they are easy to install without having to drill holes and lay cable infrared radiation is invisible to the human eye but can be detected by electronic devices designed for such a purpose. The sensors are set at the door or some supervised
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1Intruder Alarm 6 Figure 2 Diode 7 Figure 3 Resistor 8 Figure 4IR LED 10 Figure 5 LED 11 Figure 6LM 324 13 Figure 7 Pin diagram 14 Figure 8 Transistor 16 Figure 9 SCR C106MG 18 Figure 10 9V Battery 20 1Introduction Burglar alarm systems/Intruder alarm systems monitor the designated area or areas to detect the presence or suspicious elements and plays a crucial role in theft protection. It is one of the most reliable means to secure a house or a work place. The intruder alarm system consists
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C H A P T E R 2 Alarm Troubleshooting Note The terms "Unidirectional Path Switched Ring" and "UPSR" may appear in Cisco literature. These terms do not refer to using Cisco ONS 15xxx products in a unidirectional path switched ring configuration. Rather‚ these terms‚ as well as "Path Protected Mesh Network" and "PPMN‚" refer generally to Cisco’s path protection feature‚ which may be used in any topological network configuration. Cisco does not recommend using its path protection feature
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including: FIRES Regular testing of the fire alarms take place every six weeks at the School. The log book is kept by the business manager‚ this is available to any visiting fire officer. Fire instructions are clearly posted in all classrooms‚ offices and corridors. Also emergency exits are clearly signed. There are always at least 2 fire exits in each classroom. In the event of raising he alarm the glass will need to be broken in one of the many alarms allocated around the school. It is the
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Water Level Indicator Project Report Submitted by: Group Details: Abhilekh Gulpadia – 10BCE0285 Manal Gandhi – 10BCE0311 Pratik Shah – 10BCE0094 Siddhant Jajodia – 10BCE0305 Project report submitted to: Prof. Karthikeyan A. Faculty‚ Electronics Engineering VIT University. As an assignment for IInd semester for the session 2010-11. Problem Statement: To design and implement a Water Level Indicator‚ using Electronic devices like LEDs‚ ICs‚ Transistors‚ etc. The reason
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How does a false positive alarm differ from a false negative one? From a security perspective‚ which is least desirable? A false positive attack is where the system IDPS was alarmed but no attack ever occurred. The false negative is where an actual attack occurs and the IDPS isn’t alarmed at all. The least desirable would definitely be the false negative‚ if an attack does occur and the IDPS doesn’t even alarm well what’s the point in even having it if it isn’t going to alarm. 2. What is a honeypot
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as thermostats and smoke alarms. Since its launch in 2011‚ the Nest Learning Thermostat has been a consistent best seller- and the recently launched Protect (Smoke + CO Alarm) has had rave reviews. Larry Page‚ CEO of Google‚ said: “Nest’s founders‚ Tony Fadell and Matt Rogers‚ have built a tremendous team that we are excited to welcome into the Google family. They’re already delivering amazing products you can buy right now- thermostats that save energy and smoke/CO alarms that can help keep your
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Automatic alerts and/or alarms are a system that converts information on the progress of a monitored process or the condition of a monitored system into a signal suitable for human perception. Generally light or sound signals are used‚ for example‚ the flashing of a lamp‚ the ringing of a bell‚ or the sounding of a siren. Use of alarms has made a significant impact on nursing as we know it‚ by alerting clinicians that something wrong with patients or alarming nurses that something is in need of our
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For full report and other related topics Visit us @ www.engineeringminiprojects.com www.presentationtopics.in Automatic Night Lamp with Morning Alarm Automatic Night Lamp with Morning Alarm System is a simple yet powerful concept‚ which uses transistor as a switch. By using this system manual works are 100% removed. It automatically switches ON lights when the sunlight goes below the visible region of our eyes. This is done by a sensor called Light Dependant Resistor (LDR) which senses the
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