4results about How to "Solve complex problems" patented technology

This invention establishes a method and system for three-dimensional facies-controlled sand body modeling and connectivity evaluation. The method is based on a dimensionality-reduction modeling architecture: a planar sedimentary facies distribution map is generated through probability-guided sequential indicator simulation; under the constraint of planar facies zones, a one-dimensional vertical sequence of interbedded sand and mud layers is independently generated point-by-point using probabilistic sampling; the planar facies map and the vertical sequence are stitched together in three-dimensional space; then, based on graph theory undirected graph algorithms, the connectivity of the three-dimensional sand body is identified using vertical depth interval overlap and non-interlayer occlusion as dual criteria; finally, connectivity uncertainty is quantified through Monte Carlo iteration. Compared with traditional full-3D grid sequential Gaussian simulation, this method is applicable to clastic reservoirs with gradual lateral variation and dominant vertical accretion (lateral variation coefficient of planar facies zones less than 0.3). It eliminates the computationally expensive three-dimensional spatial interpolation and complex structural modeling, forming a simplified engineering path of "trading computational power for uncertainty assessment," which can be used for reservoir connectivity evaluation and development scheme optimization.

The mechanical commutation device comprises commutation electrodes and a non-sliding mechanical commutation device, the commutation electrodes are led out of a motor coil to the outer side of the commutation device and connected with the non-sliding mechanical commutation device, and the commutation electrodes are connected to commutation rings in the non-sliding mechanical commutation device in a one-to-one correspondence mode. A motor rotor shaft is connected with a non-sliding mechanical commutation device, the motor rotor shaft rotates to drive the non-sliding mechanical commutation device to synchronously switch commutation electrodes to a power supply in a non-sliding mode, and the commutation function is achieved. The slip ring device is a carbon-brush-free slip ring device, the reliability can be improved, the problems of abrasion of a brush motor and complexity of a brushless motor controller are solved, the advantages that the brush motor is easy to control and the brushless motor is free of abrasion are combined, and the slip ring device is a nearly-zero-abrasion phase converter.

The embodiments of the present application disclose a closed-loop detection method, device, robot and storage medium, which relate to the field of robot navigation technology. The method comprises: identifying a current tag of the robot at a current position; generating target feature data according to the position information of the current tag; performing closed-loop detection on the movement path of the robot according to the target feature data; through the above technical scheme, the efficiency and accuracy of closed-loop detection are improved.

The present invention discloses an intelligent optimization control method for aerodynamic force of a local surface protrusion aircraft. First, an aerodynamic force model is established to predict the aerodynamic force generated by a protrusion at any position. On the basis of the established aerodynamic force model, the optimal protrusion position is selected according to the aerodynamic force index required by the actual task to complete the aerodynamic force optimization control. The intelligent optimization algorithm is used to find the optimal control solution under the given index. Given the required yaw moment and pitch moment, the optimal solution that can meet the conditions and minimize the axial force is found. The present invention adopts the intelligent optimization algorithm ant colony algorithm and particle swarm algorithm as the optimization algorithm, which has high calculation efficiency, good robustness and high precision.