4results about How to "Large room for optimization" patented technology

This invention relates to the field of cellular-connected drone video transmission technology, specifically disclosing a method for maximizing user experience quality in multi-drone aerial video transmission. This method is used in aerial video streaming systems that utilize multiple cellular-connected drones to capture video from different points of interest (PoI) regions and transmit the video to ground base stations (BS) and users, allowing ground users to share the drones' field of view. Based on this aerial video streaming system, this invention constructs an optimization problem. By jointly optimizing transmission scheduling, video playback rate, and drone trajectory design, it maximizes the minimum quality of experience (QoE) for all users, considering uplink interference and the trade-off between video quality and smoothness. Simulation results show that, compared to benchmark solutions, the proposed solution achieves a significant performance improvement and achieves a trade-off between video quality and smoothness.

This invention relates to the field of robot motion control technology and discloses a multi-station dynamic scheduling method for the safety zone of an unmanned coffee machine robotic arm. The method first calculates a dedicated dynamic safety radius for each movement based on the motion sector of the scheduling task and the state of the arm's interaction devices. Next, it establishes a geometric envelope model for different load states of the robotic arm and corrects the boundary points of the path based on this model and the dynamic safety radius to ensure that the load entity remains within the safety zone during movement. Finally, by calculating the effective rotation angle between the corrected boundary points and judging based on angle thresholds, it decides to generate a three-segment or a four-segment scheduling path that introduces intermediate transition points. This invention solves the technical problems of path planning redundancy caused by static safety zones and interference caused by neglecting load volume. While ensuring safety, it improves the operating efficiency, reliability, and adaptability to complex paths of the robotic arm.

The invention discloses aluminum-free high-grade non-oriented silicon steel based on rolled hard board normalization and a production method of the aluminum-free high-grade non-oriented silicon steel. The production method comprises the following steps; the continuous casting billet comprises the following chemical components in percentage by weight: less than or equal to 0.005% of C, 1.5-4.5% of Si, 0.2-1.5% of Mn, less than or equal to 0.0030% of Al and the balance of Fe. (2) carrying out hot rolling on the continuous casting billet to obtain a hot-rolled plate with the thickness of 1.8-3.5 mm; (3) the hot-rolled plate is subjected to acid continuous rolling, and a rolled hard plate with the thickness being 0.2-1.2 mm is obtained; (4) the rolled hard board is subjected to normalizing treatment, the normalizing temperature is (850-1000) + / -10 DEG C, and the normalizing time is 60-100 s; (5) a single-rack cold-rolling mill is adopted for conducting 2-4 passes of finish cold rolling on the normalized rolled hard board, the total reduction rate is 40-80%, and a finish-rolled board is obtained; and (6) the finish rolling plate is annealed, and a non-oriented silicon steel finished product with the thickness being (0.05-0.50) + / -0.003 mm is obtained.

The present application relates to the technical field of filter, especially to a kind of adjustable moving blade assembly and tuning filter, including at least two groups of mutually spaced adjustable moving blades, each group of adjustable moving blade has at least two radius different sector metal sheets, each sector metal sheet has discrete distribution metal sheet monomer.The adjustable moving blade is opposite to static blade in initial state, in the resonant cavity of fixed size, for ordinary integrity moving blade, the opposite distance between it and static blade is completely fixed, the working frequency of filter only depends on the opposite area between moving blade and static blade, and the tuning range is limited.The adjustable moving blade described above is spliced by multiple discrete sector metal sheets, not connected each other, each metal sheet monomer can be individually moved by tweezers or flat-nose pliers, so that the opposite distance between it and static blade is variable, the capacitance of resonant cavity can be finely adjusted by adjusting the distance between metal sheet monomer and static blade, so that the resonant frequency of resonant cavity can be accurately changed.