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An electronics firm wishes to introduce a range burglar alarms. This coursework contains the design and a prototype, which has been made for further development by the firm.
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Electronics Coursework Problem An electronics firm wishes to introduce a range burglar alarms. This coursework contains the design and a prototype, which has been made for further development by the firm. Possible Projects Brief I have decided to design and make a prototype of a home burglar alarm. Research into Alarms - I have phoned companies, talked to staff at electrical shops, to find the following information. Analysis of commercial alarms From my research into commercial alarms I have found out the following... * All alarms have more than 1 input. * All alarms sound for a time after they have been triggered. * Most alarms sound for a variable time of between 2 minutes and 20 minutes. * All alarms have a sound output of at least 98dB. * All alarms have either a delay between being switched on and being armed or they can be remotely switched on and off from outside the premises. * The better alarms have a...
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