In order to improve the accuracy of the roadway rock of driving along goaf deformation monitoring system

a number of monitoring points at the different parts of the same rock is layouted to understand and control the overall situation.To make full use of the information come from various monitoring points

view of the lack that the roadway deformation monitoring system can only use a monitoring sequence at once now

multi-sensor and multi-model information fusion technology is introduced

which is a mathematical method to extract comprehensive monitoring information from a number of rock monitoring sequences for deformation monitoring.The simulation examples is used to prove its effectiveness.