2results about How to "Improve indication effect" patented technology

This invention discloses a method, system, and device for detecting weak seismic signals based on instantaneous phase analysis, relating to the field of reservoir prediction. The method includes: 1. Inputting a three-dimensional seismic data volume; 2. Extracting the amplitude data of the current seismic trace and recording it as a one-dimensional array; 3. Performing a -90° phase shift on the one-dimensional array to obtain a phase shift array; 4. Performing a time-frequency continuous wavelet transform on the phase shift array to obtain multiple common-frequency amplitude arrays; 5. Performing a Hilbert transform on each common-frequency amplitude array to obtain the corresponding instantaneous phase array; 6. Calculating the second derivative of each instantaneous phase array with respect to the time variable n to obtain a three-dimensional data volume indicating weak signals at the current seismic trace's common frequency; 7. Changing the seismic trace and repeating steps 2-6 to obtain multiple three-dimensional data volumes indicating weak signals at the common frequency; 8. Selecting the optimal weak signal indicator data volume. This invention can effectively find the three-dimensional data volume indicating weak signals, improving the accuracy of detection.

This utility model relates to a mine safety indicator light, comprising: a connecting plate, with an access component and a fixing groove respectively provided at both ends of the connecting plate for connecting two adjacent connecting plates; a sliding groove is provided on the side wall of the connecting plate, and a light-emitting tube is arranged inside the sliding groove; an adjustment component is provided inside the sliding groove for adjusting the angle of the light-emitting tube. This utility model relates to the technical field of mine safety indicator lights. Because the light-emitting tube of this mine safety indicator light is tilted, the light emitted from the tube can contact the ground, forming an indicator light spot on the road surface of the safety passage. Combined with the light generated by the diffuser holes on the surface of the light-emitting tube, a double warning is formed, making it more intuitive for workers to observe the position of the indicator light and improving the indicator effect.