Hello! We are conducting a research about a fire fighting robot. We would like to know about how to get a fire alarm to send a signal to our robot. Since our robot is staying in one place and if the fire for example is in the kitchen, the fire alarm will trigger and will somehow send a signal to the robot and the robot will immediately go to that are. We would like to know how to send that signal to the robot.
Contact the manufacturer of the fire alarm system? Is the fire alarm system based on an Arduino?
I think not? Our defense will be starting tommorow and it was our fault that we weren't able to ask from a manufacturer. That's why I am here to ask for suggestions
First of all, don't ever modify a primary fire alarm, or any other sort of safety equipment. If you want to modify one then it should be a redundant unit that you're not relying on.
I've interfaced an Arduino with a smoke detector via the piezo buzzer output. This output is a frequency so I put an RC smoothing circuit on it to convert that to a signal easy to read with the Arduino.
I've also seen a project where someone used a microphone (or something of the sort) to detect the sound of the alarm. That's perhaps a bit more complex and less reliable but it doesn't have any chance of interfering with the smoke alarm so you could use it with only a primary alarm system.
Mildred231:
I think not? Our defense will be starting tommorow and it was our fault that we weren't able to ask from a manufacturer. That's why I am here to ask for suggestions
Plan B. RTFM. Proper actual "fire alarm systems" often have a dry contact (contacts of a relay) that close when the alarm occurs. This is how the alarm systems are designed to tie into external system.
I see. Thanks for your suggestions!