Be careful!!!
Your application is potentially dangerous, wired or wireless. If you decide to use a wireless system, you must be especially confident that it will only trigger when desired, and not from noise or other strange occurances
Make sure that what you are doing is legal and safe. It might be a good idea to look into systems that are already designed for this type of application. Whatever you do, make sure that you don't have rockets/explosives going off when you don't want them to.