We are Elevator Company. We want to develop air bag for elevator similar to auto air bad. The air bad will be setting on the bottom of pit room and will explode if the cabin of the elevator reaches the last few meters of the shaft at certain speed. (Too fast).It is another safety device for elevators.The way it should work is by placing sensors on the shaft and on the cabin and the control unit will decide if it is too fast, then it will explode the bag.The bad should be about 1x1x1 meter in size made of very strong heavy material and it should be able to handle the cabin weight of up to one ton.If you can help develop this Idea, please let me know ASAP.Thank you