3results about How to "Avoid mixing with each other" patented technology

The invention relates to a hard alloy steel ball screening device with a multi-stage screening structure, and belongs to the technical field of steel ball screening, the hard alloy steel ball screening device with the multi-stage screening structure comprises a screening frame, a screening mechanism is installed on the screening frame, and a dredging mechanism is installed in the screening mechanism. According to the hard alloy steel ball screening device, through arrangement of the dredging mechanism, in the clockwise rotation process of spiral dredging pieces, hard alloy steel balls can be conveyed and can be separated, and the situation that the screening efficiency is affected by accumulation of the hard alloy steel balls is avoided; meanwhile, the hard alloy steel balls clamped on the first screening rod and the second screening rod can be pushed out from the first screening rod and the second screening rod, the probability that the hard alloy steel balls block the screening rods is reduced, and the hard alloy steel balls close to the discharging ring can be pushed out; and the hard alloy steel balls can rapidly enter the third finished product hopper, and the screening efficiency of the hard alloy steel balls is further improved.

This invention relates to the field of intelligent transportation big data analysis technology, specifically to an intelligent management method for vehicle electronic tags based on big data processing. The method includes: acquiring vehicle passage records and conducting spatiotemporal correlation analysis; extracting driving trajectories from multi-time-point geographic coordinate sequences; and modeling trajectory behavior to obtain driving regularity, high-frequency access areas, and commonly used routes. An improved random walk algorithm, incorporating historical path dependency transition probabilities and encoding real-time traffic flow as spatial preference weights, is used to predict future vehicle paths. Multi-dimensional analysis of tag passage records generates identity and behavioral feature vectors, which are then fused to construct a comprehensive digital profile of the vehicle. This method reduces the bias of traditional random walks, adapts to real-time road network conditions, improves the rationality of path prediction, achieves a complete representation of the vehicle's static identity and dynamic behavior, and enhances the refinement and intelligence of electronic tag management.

This invention proposes a semi-flexible pavement material, composed of the following components by mass percentage: the parent asphalt mixture adopts the OGFC type, with a target porosity controlled at 22%-24%, and the total aggregate proportion is 100%, of which recycled coarse aggregate (9.5-4.75mm) accounts for 26%-30%, limestone aggregate (9.5-4.75mm) accounts for 15%-19%, recycled fine aggregate (0-4.75mm) accounts for 22%-26%, limestone fine aggregate accounts for 26%-30%, and mineral powder accounts for 2%-4%. SBS modified asphalt is added externally at an asphalt-aggregate ratio of 4.3%-4.7%; the total dry content of cement-based grouting material is 100%, with P·O42.5 cement accounting for 32%-38%, secondary fly ash accounting for 22%-28%, granulated blast furnace slag powder accounting for 8%-12%, and natural fine sand accounting for 28%-32%. High-efficiency water-reducing agent is added externally according to the weight of the cementitious materials, at a dosage of 0.5%-0.7%, with the water-cement ratio controlled at 0.39-0.41. The mass ratio of cement grouting material to the parent asphalt mixture is 1:4.5-1:4.9. This invention uses crushed construction waste as aggregate to replace the original basalt aggregate in semi-flexible pavements, realizing the resource recycling and utilization of construction solid waste, effectively disposing of demolition waste, and reducing soil and water pollution caused by solid waste landfill.