Design And Construction Of Sound Or Clap Activated Alarm
Table of content
1:2 Background of the Study
1:3 Statements of Problems
1:4 Objectives of the Study
1:5 Research Question
1:6 Study of the Hypothesis
1:7 Significance of the Study
1:8 Justification of the Study
1:9 Scope of the Study
1:10 Definition of Terms
2:1 Conceptual Clarification
2:2 Theoretical Framework
2:3 Literatures on the Subject Matter
3:0 Area of Study
3:1 Source of Data
3:2 Sampling Techniques
3:3 Method Data Collection
3:4 Method of Data Analysis
3:5 Reliability of Instrument
3:6 Validity of Instrument
3:7 Limitations of the Study
4:1 Finding of the Study
4:2 Discussion of the Study
Summary, Conclusion and Recommendation
5:0 Summary of Findings
5:3 Proposal for Further Studies
An alarm device or system of alarm devices gives an audible, visual or other form of alarm signal about a problem or condition. Alarm devices are often outfitted with a siren.
Alarm devices include:
burglar alarms, designed to warn of burglaries; this is often a silent alarm: the police or guards are warned without indication to the burglar, which increases the chances of catching him or her.
alarm clocks can beep, buzz or ring off as an alarm at a set time to wake a person up or for other reminders
distributed control systems (DCS), found in nuclear power plants, refineries and chemical facilities also generate alarms to direct the operator’s attention to an important event that he or she needs to address.
alarms in an operation and maintenance (O&M) monitoring system, which informs the bad working state of (a particular part of) the system under monitoring.
civil defense siren also known as tornado sirens or air raid sirens
fire alarm systems
fire alarm notification appliance
“Multiple-alarm fire”, a locally-specific measure of the severity of a fire and the fire-department reaction required.
autodialer alarm, also known as community alarm
tocsins – a historical method of raising an alarm
Alarms have the capability of causing a fight-or-flight response in humans; a person under this mindset will panic and either flee the perceived danger or attempt to eliminate it, often ignoring rational thought in either case. A person in such a state can be characterised as “alarmed”.
With any kind of alarm, the need exists to balance between on the one hand the danger of false alarms (called “false positives”) — the signal going off in the absence of a problem — and on the other hand failing to signal an actual problem (called a “false negative”). False alarms can waste resources expensively and can even be dangerous. For example, false alarms of a fire can waste firefighter manpower, making them unavailable for a real fire, and risk injury to firefighters and others as the fire engines race to the alleged fire’s location. In addition, false alarms may acclimatise people to ignore alarm signals, and thus possibly to ignore an actual emergency: Aesop’s fable of The Boy Who Cried Wolf exemplifies this problem.
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