Your post is difficult to decipher, but I'm assuming you have hard-wired smoke detectors and one or more is having a problem and setting them off? Or is one of them simply "chirping"? (low battery)
If they are all going off for no reason, they COULD simply be dirty and need a more thorough cleaning, or if too old, replacing them might be the best way to go. You may even be able to find an organization near you that will give them to you for free, or very cheap if cost is a factor. Check with your local fire department.
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