For tunnel excavation, it is very important to have accurate and real-time information about the direction and location of the excavation. Therefore, a system that has continuous, fast and accurate feedback of the position and direction of tunneling is needed. The laser navigation system made by the science-based Fatah Noor Mihan company, due to the use of laser method instead of electronic compass method to determine three degrees of freedom, has the ability to give speed and accuracy to the drilling work with fast and accurate performance during drilling.
