6results about How to "Overcome difficulties" patented technology

The invention relates to the technical field of visual inspection, and discloses a bolt head height detection method and system and a processor, and the method comprises the steps: inputting a head image of a high-locking bolt into an encoder-decoder for feature extraction, and obtaining bolt head contour feature data and bolt head depth feature data; performing structured light projection on the head of the high-lock bolt to obtain three-dimensional reconstruction data of the head of the bolt; constructing a comprehensive loss function; performing slack variable conversion on the bolt head three-dimensional reconstruction data to obtain a bolt head measurement convex optimization model; performing edge area depth value calculation by combining the bolt head depth feature data to obtain bolt head detection data; feature fusion calculation is carried out through the Gaussian mixture model, a bolt head height detection result is obtained, and the accuracy of bolt head height detection is improved.

The invention provides a main net rack reconstruction and load recovery implementation method based on a hydro-thermal power generating unit, and relates to the technical field of power systems, and the method comprises the steps: obtaining key parameters (voltage grade, structure, unit self-starting capability and the like) of a power grid; constructing an electromagnetic transient simulation model based on the information sorting unit capacity and the line length; performing overvoltage, unit paralleling and net rack reconstruction simulation through the model; further establishing a frequency response model, and simulating load recovery; and finally, according to a simulation result and actual scheduling data, a main net rack reconstruction and load recovery scheme is formulated and deployed to a power grid scheduling system. According to the method, blindness of a power grid dispatcher during power grid main grid structure reconstruction and load recovery in the power grid black start process is overcome, and the problem that the dispatcher makes a decision difficultly in the black start process is solved.

The invention belongs to the technical field of earthquake risk assessment, and provides a multi-factor calculation method for constructing a space distribution function of a potential source area, which comprises the following steps: selecting a plurality of factors for evaluating the earthquake risk of the potential source area; determining a factor combination participating in calculation of a space distribution function for different earthquake magnitude grades; performing quantitative assignment on each selected factor of each potential seismic source region; and according to the factor combination, carrying out average calculation on the normalized value of each factor in each potential seismic source region to obtain a space distribution function value of the potential seismic source region corresponding to the specific seismic magnitude grade. According to the method, different factor combinations are adopted for calculation for different earthquake magnitudes. The design is based on the understanding of seismic activity control factors of different earthquake magnitudes, so that the calculation result can more finely reflect the relative danger degree of the potential seismic source area on different earthquake magnitude levels, and reliable technical support is provided for compiling a more accurate seismic oscillation parameter zoning map.

The invention provides a slow-closing opening guide wire, and relates to the technical field of interventional medical instruments. The opening wire is arranged in the outer sleeve; the guide wire is arranged in the outer sleeve; the twisting control assembly is connected to the near ends of the opening wire and the guide wire and can drive the opening wire and the guide wire to move in the axial direction of the outer sleeve; the opening wire is made of hard alloy, and the hardness of the far end of the opening wire is larger than that of the far end of the guide wire. The opening wire and the guide wire are arranged in the outer sleeve, advancing or retreating of the opening wire and the guide wire is independently controlled through the twisting control assembly, firstly, the hard opening wire is used for opening a blood vessel occlusion position, then the guide wire with the soft far end penetrates through the blood vessel occlusion position, and the passing difficulty of the guide wire is greatly reduced; and after the guide wire passes through, the outer sleeve is pushed forwards, so that the outer sleeve also penetrates through a blood vessel occlusion part, and successful in-place is realized.

The invention relates to the technical field of chimney dismantling construction, in particular to a concrete chimney high-altitude dismantling method which comprises the steps that a plurality of anchoring parts are fixed to a chimney according to preset positions; a plurality of slideways are arranged in the circumferential direction of the chimney, and a triangular support is installed on the uppermost slideway steel pipe; an operation platform is mounted on the triangular support; wall dismantling seams are chiseled in the operation platform in the circumferential direction of the chimney every 3-5 m, force towards the interior of the chimney is applied to concrete slabs between the wall dismantling seams, the connecting positions of the bottoms of the concrete slabs and the lower-layer chimney are removed, and the concrete slabs fall into the chimney; the operation platform is moved towards the next layer, dismantling operation is carried out, and the operation is repeated until dismantling operation is completely completed; the annular aerial work platform is innovatively introduced, workers carry out dismantling operation layer by layer from top to bottom on the platform and are not limited by adjacent buildings, and meanwhile flying stones and large-area flying dust are effectively avoided; and the structure integrity of the lower part of the chimney can be ensured, and accurate local dismantling is realized.

The invention relates to red bean ice wine and a preparation method thereof. The red bean ice wine is prepared by taking natural wild red beans in Greater Khingan as a main raw material and white birch juice as an auxiliary food material through secondary fermentation. According to the red bean ice wine prepared by the method disclosed by the invention, the alcoholic strength is 38-52% (V / V); the sugar content is 0.06 g / L-0. 1g / L (W / W), and the product is in a transparent crystal color, keeps the taste of original fruits, and is pure in flavor, full and mellow in taste and rich in nutrition.