The invention relates to the technical field of
mine safety monitoring, in particular to a
coal mine tunnel deformation real-time monitoring device and
system. The technical problems that in the working process of a traditional roadway monitoring technology in a
geological structure complex area,
data processing delay is large, and the best intervention opportunity may be missed due to data
lag in the traditional technology are solved. According to the technical scheme, the real-time monitoring device and
system for deformation of the
coal mine tunnel comprise a fixed distance measuring unit, a reflection
target array and a displacement calculation unit, the displacement calculation unit is used for obtaining original distance data from each
laser distance measuring sensor to a corresponding reflection target in real time, and the original distance data is calculated through difference calculation between the original distance data and a preset
reference distance. The real-
time displacement variable quantity of each key
deformation monitoring position is directly output, and the displacement variable quantity is directly used as a monitoring index of roadway deformation; according to the invention, through the direct correspondence between
laser ranging and the reflection target, the scanning and three-dimensional reconstruction process in the traditional technology is abandoned, the
single measurement period is shortened, and the real-time capture requirement of catastrophe precursor is met.