2results about How to "Quick prediction" patented technology

The application discloses an engine fault diagnosis method based on a multilevel progressive detection principle, and has the characteristics that the method comprises the following steps: engine timing geometric deviation angle measurement, to complete mechanical layer detection; engine crankshaft and camshaft Hall pulse signal measurement and correction, to complete electrical signal angle layer detection; engine cold test speed-up working condition crankshaft angle domain / frequency domain comprehensive analysis, namely vibration acceleration layer detection; and artificial intelligence fault identification based on big data. The method provided by the application can progressively judge and identify faults through the mechanical layer, the electrical signal angle layer, timing belt tension or vibration frequency and vibration acceleration layer, so that common engine faults in the engine cold test and bench test process can be quickly identified. In the judgment of the vibration acceleration layer, the engine fault is quickly identified and pre-judged by combining the mechanical layer and the electrical signal angle layer and through an artificial intelligence fault judgment algorithm based on big data.

The embodiment of the application provides a rock burst prevention method and device based on a TBM tunnel and electronic equipment, and belongs to the technical field of tunnel construction. The method comprises the following steps: determining a target rock burst grade of a to-be-tested tunnel according to a preset geological parameter; if the target rock burst grade is a non-rock burst grade, no operation is performed; if the target rock burst grade of the to-be-tested tunnel is a slight rock burst grade, a plurality of steel bars are arranged at an exposed shield of the to-be-tested tunnel; if the target rock burst grade of the to-be-tested tunnel is a medium rock burst grade, a plurality of advance anchor rods are arranged at a working face of the to-be-tested tunnel, and a plurality of steel bars are arranged at the exposed shield of the to-be-tested tunnel, wherein the length of each advance anchor rod is set according to the paragraph length of the slight rock burst grade; and if the target rock burst grade of the to-be-tested tunnel is a strong rock burst grade, drilling operations are performed at the exposed shield and the working face of the to-be-tested tunnel respectively. Through the provided scheme, the accuracy of rock burst prediction is improved, and comprehensive and rapid rock burst risk prediction is realized.