Tom Preston
New Member
I'm currently completing my final year project, in which I am making a wireless alarm for laptops, to help reduce laptop thefts at transport stations.
The alarm will sound when the laptop exceeds roughly 2 metres from the reciever, which will be located on the laptop owner.
There will be a transmitter located on the laptop/laptop case.
I am aware that products already exist which feature this (e.g. **broken link removed**), I am just wondering what type of circuitry is used inside these products, and in what way I could do a mock up model/rig which would show these features working?
Basically, I need a circuit that will alarm when a connection is lost.
The connection could be lost wirelessly if this is possible for me to do simply, or it could be so that if a voltage through a cable is lost the alarm will sound.
Any help will be greatly appreciated, and I will answer any questions to clear up any confusion I may have caused in this question!
Thanks,
Tom Preston
The alarm will sound when the laptop exceeds roughly 2 metres from the reciever, which will be located on the laptop owner.
There will be a transmitter located on the laptop/laptop case.
I am aware that products already exist which feature this (e.g. **broken link removed**), I am just wondering what type of circuitry is used inside these products, and in what way I could do a mock up model/rig which would show these features working?
Basically, I need a circuit that will alarm when a connection is lost.
The connection could be lost wirelessly if this is possible for me to do simply, or it could be so that if a voltage through a cable is lost the alarm will sound.
Any help will be greatly appreciated, and I will answer any questions to clear up any confusion I may have caused in this question!
Thanks,
Tom Preston