3 results about "Standard line" patented technology

The application provides a cutting line breakage detection method, steps comprising: obtaining the line bow value of the line net in the cutting process and the identification time of the monitor from the emission signal to the reception signal; based on the comparison of the monitoring line bow value and the standard line bow value, whether the line bow of the line net is abnormal can be judged; and based on the difference value of the monitoring identification time and the standard identification time, compared with the preset time threshold value, whether the line net is broken can be judged. The cutting line breakage detection method of the application further improves the breakage detection monitoring precision and detection speed through the line bow value and the identification time, so as to improve the stability of the line net state monitoring.

This disclosure relates to a road longitudinal matching method, apparatus, device, and computer program product. By acquiring the distance feature points and shape feature points included in both high-precision line segments and candidate standard line segments, the average distance similarity and shape similarity between the high-precision line segments and candidate standard line segments can be determined. The average distance similarity comprehensively considers the average distance from the high-precision line segment to the candidate standard line segment, reducing longitudinal offset caused by positional accuracy errors at the beginning and end points of the standard line segment. The shape similarity enables matching based on shape, reducing longitudinal offset caused by shape differences. Therefore, based on the average distance similarity and shape similarity, a standard line segment that matches the high-precision line segment can be determined, reducing longitudinal offset and improving driving safety.

The application provides a 3D printing strength enhancement method based on an interlayer alternating variable-width slice strategy, relates to the technical field of 3D printing slice algorithm of FDM technology, and comprises four steps of wall body region identification, odd-even layer line width distribution, path center coordinate calculation and extrusion amount compensation: firstly, the vertical wall body region is identified through layering processing, contour comparison and threshold determination; then, a standard line width, a wide line width and a narrow line width are set, the odd layers adopt the uniform standard line width, and the even layers form an alternating variable-width structure by adjusting the line widths of the outermost and innermost walls; the path center coordinates are calculated according to the line width difference, so that the even layer paths are transversely staggered relative to the odd layer paths; and the E-axis feeding amount of the extruder is adjusted based on the volume conservation principle. The application has the beneficial effects that: the mechanical interlocking structure is formed by interlayer staggering and embedding, the interlayer V-shaped gap of traditional printing is filled, the plane strength of the XY axis, the strength of the Z axis and the interlayer bonding force of the printed part are significantly improved, the hardware equipment does not need to be changed, and the implementation cost is low.