A method for optimizing a sensor network of a microseismic monitoring system under a known wave velocity system

Abstract

The application provides a microseismic monitoring system sensor network optimization method under a known wave velocity system, first, a control equation between a sensor and a microseismic / acoustic emission source is derived by utilizing a proportional relationship between a propagation distance and time, and a distance difference equation of the microseismic / acoustic emission source is established; second, an optimization function of a single source sensor network layout is constructed according to the distance difference equation and by utilizing fisher information and probability integration of the microseismic / acoustic emission source; then, a sensor network optimization function is constructed under the condition that the entire monitoring area and the probability of the occurrence of the source at different positions are considered; finally, the constructed sensor network optimization function is solved by using an improved coding framework. The method can eliminate the influence of the sensor network on the positioning accuracy and effectively identify the optimal sensor network layout.

Images