Explosion Detection Helpe / drone

More and more bombs are hidden in the tourist attractions around the world，this machine makes use of the exploded dectection technic to warn the crowd.
The warning sound and the flashing light will work together to inform the crowd to evacuate.
a 360 degree red light means there might be suspicious objects beside the machine.People should get away as fast as they can.
It will protect the visitors from the danger，and also increase the safety of the spot.