a stemming material information collection unit configured to collect stemming material information comprising energy applied and compaction counts when filling a stemming material into a blast hole, from a sensor built into the stemming rod used for the blasting;

a communication-performing unit configured to perform wireless communication with a detonator to be charged through a communication module built into the stemming rod used for the blasting;

a blasting time controller configured to control a blasting time on the basis of detonator information and location information of the stemming rod used for the blasting, the information being collected from the communication-performing unit; and

a stemming-defective blast hole determination unit configured to determine a stemming-defective blast hole by comparing the stemming material information collected in real time and the normal stemming material information that is derived on the basis of a result of analyzing information related to the energy applied and the compaction counts when filling the stemming material and previously collected through the stemming material information collection unit,

wherein the blasting time controller determines a location of the blast hole on the basis of the collected location information of the stemming rod used for the blasting, and controls the blasting time by reflecting a blasting time in milliseconds that is assigned by matching the detonator information according to the determined location of the blast hole, and

wherein the sensor is any sensor that converts pressure and force transferred to the stemming rod to produce a signal that is measured and counted.