Shoring & stabilization kit is used as a protection device for mines, earthquake rescue, traffic accident rescue and other occasions to ensure people safe. However, during accident, due to aftershocks, deformation of the shoring & stabilization kit, improper installation, etc. shoring & stabilization kit may be deflected or even collapsed, resulting in serious secondary damage.
Many deflections and deformations are not happened in suddenly, there will be some signs and trends of initial small amplitude deflection, so detection and early warning are necessary. So security alarm system is designed and developed, the security alarm system will alarm when a small amplitude deviation occurs, the security alarm will remind rescuers to detect or evacuate in time.
Aolai security alarm system includes two parts: one part is fixed on the shoring & stabilization kit and detect any displacement. Another part will be carried by the rescuers, it will be used to remind the rescuers the displacement.