3results about How to "Avoid secondary perturbation" patented technology

This invention provides a deep tillage, fertilization, and soil covering integrated machine. By integrating multiple deep tillage plows, fertilizer spreaders, and soil covering plows onto a single vehicle body, and arranging them in the following order—deep tillage plows in front, fertilizer spreaders in the middle, and soil covering plows at the rear—this invention achieves simultaneous completion of the three processes of deep tillage, fertilization, and soil covering in one operation. Specifically, the deep tillage plows and fertilizer spreaders are connected by the same mounting bracket. The fertilizer spreader's depth adjuster precisely aligns the fertilization pipeline with the trench created by the deep tillage plow, allowing the flaky fertilizer to fall directly into the active root zone after deep tillage. This ensures structural alignment between the fertilizer outlet and the deep tillage trench. Simultaneously, the integrated electrical control box precisely controls the release device's action according to the preset plant spacing based on distance signals from the travel time meter, achieving automated control of fixed-point and quantitative fertilization. This reduces labor costs, improves fertilizer utilization, and avoids secondary soil disturbance caused by rotary tillers.

This invention discloses an expandable diameter reinforcement device and construction method for composite cement-soil mixing piles. The device includes a steel pipe pile, a sliding collar, multiple reinforcement units, a traction rope, and a traction guide. The sliding collar is fitted around the outer periphery of the steel pipe pile. Multiple reinforcement units are spaced apart around the pile end, with each reinforcement unit's two ends connected to the sliding collar and the pile end, respectively. The traction guide is located on the inner wall of the steel pipe pile, and the traction rope is connected to the sliding collar. When the traction rope is pulled upward, the sliding collar moves towards the pile end, reducing the distance between the two ends of each reinforcement unit and driving the multiple reinforcement units to bulge outward, forming an expanded diameter reinforcement structure around the pile end. This device effectively solves the problem of difficulty in lowering large-sized reinforcement components in limited construction channels. This construction method, by implanting and simultaneously expanding the diameter of the reinforcement components in a fluid-plastic pile body, is unaffected by subsequent hardening, ensuring controllable forming quality and ultimately improving the bearing capacity of the enlarged head region of the composite cement-soil mixing pile.

This invention discloses a smart management system and method for integrated energy storage inverter cabinets, relating to the field of energy storage system control technology. The method includes: real-time monitoring of the operating data of the energy storage inverter system; establishing a historical strategy performance database; predicting the temperature rise trajectory of the filter within a preset time window based on the current filter temperature, ambient temperature, and heat dissipation status using a thermal model during grid-to-off-grid switching; using the temperature rise trajectory as a key constraint; based on the strategy performance under similar operating conditions in the historical strategy performance database; and combining the current dominant operating mode and the power supply priority of key loads, ensuring that the filter temperature does not enter a preset risk range; dynamically calculating and selecting control strategy parameters that achieve a balance between switching smoothness, harmonic suppression level, and strategy execution risk; and executing the control strategy parameters. This invention reduces strategy execution risk by dynamically outputting the globally optimal strategy through multi-dimensional coupling.