6results about How to "Comfortable" patented technology

This application relates to the field of autonomous driving technology, and in particular to a method and apparatus for optimizing decision-making actions of autonomous vehicles. The method includes: acquiring the autonomous vehicle's own state and the neighboring environment states of neighboring vehicles in the current driving scenario; extracting the environmental saliency feature vector of the current driving scenario; constructing the Bézier curve of the current driving scenario; calculating the instantaneous energy risk of the current driving scenario; obtaining the action sequence of the current driving scenario; and obtaining an optimization objective function. The action sequence is then iteratively optimized using the optimization objective function to obtain an optimized action sequence that meets preset optimization conditions. This solves the problem that related technologies employ isotropic safety assessment, leading to limitations in safety assessment, uneven trajectories, and difficulty in meeting the needs of commercialization.

This invention discloses a highly comfortable bag backrest material. The raw materials, by weight, include: a plastic material and a solid filler, wherein the weight ratio of the plastic material to the solid filler is 100:(0.1-5). This invention uses a specific gravity of 1000-1100 kg / m³. 3 TPEE with a melt flow index of 3-8 g / 10 min is used to prepare backpack backrest materials with suitable hardness and density, capable of supporting the weight of the backpack and alleviating pressure on the back. Furthermore, the use of titanium dioxide with a particle size ≥3000 mesh as a solid filler, working in conjunction with TPEE, results in backpack backrest materials with good hardness, demonstrating good mixing and processing performance between the plastic material and the solid filler. Simultaneously, the reaction temperature during processing is 170-180℃, and the foaming pressure is 40-50 MPa, which improves the foaming efficiency of the sheet, forming cells of uniform size and structure, giving the sheet good resilience.

The application discloses a preparation method of a cotton-feeling polyester fabric. The application relates to the technical field of polyester fabric processing, and provides a preparation method of a cotton-feeling polyester fabric which has the characteristics of softness, comfort, wear resistance and wrinkle resistance. The method comprises the following steps: S1, preparing parent yarn; S2, air-textured yarn treatment; two parent yarns are fed into an air-textured yarn processing device, the nozzle air flow pressure is set to be 0.3-0.8 Mpa, and the nozzle temperature is set to be 80-120 DEG C; in the two parent yarns, the overfeed rate of low-overfeed parent yarn is set to be 5-10%, and the overfeed rate of high-overfeed parent yarn is greater than the overfeed rate of low-overfeed parent yarn by more than 5%; air-textured yarn is prepared; S3, weaving; the air-textured yarn is woven into a fabric; and S4, post-finishing; the woven fabric is subjected to biological enzyme treatment, alkali-reducing treatment and softening finishing.

This application relates to a method for switching headphone operating modes, a headphone, a computer-readable storage medium, and a computer program product. Applied to headphones, the headphones include a vent valve and an active noise cancellation module. The method includes: acquiring head posture data; adjusting the operating state of the vent valve and the active noise cancellation module based on the head posture data to switch the current operating mode; wherein the vent valve is used to allow or restrict external ambient sound from entering the ear; the active noise cancellation mode neutralizes the ambient sound through reverse sound waves. Using this method, on the one hand, switching headphone modes does not require physical contact with the headphones or through a mobile device application, greatly simplifying the operation process and improving operational convenience and efficiency. On the other hand, it achieves a balance between noise cancellation and wearing comfort in the headphones.

The invention provides a preparation method of a multifunctional electrostatic spinning covering yarn flexible sensor, which comprises the following steps: preparing a first spinning solution from polyvinylidene fluoride-hexafluoropropylene, N, N-dimethylformamide, acetone and 1-ethyl-3-methylimidazole bis (trifluoromethanesulfonyl) imide salt; polyvinylidene fluoride-hexafluoropropylene and N, N-dimethylformamide are adopted to prepare a second spinning solution; silver-plated nylon yarns are used as core yarns, primary deposition is carried out around the silver-plated nylon yarns by adopting a first spinning solution, and primary nanofiber core-spun yarns are prepared; taking the primary nanofiber core-spun yarn as a core yarn, and performing secondary deposition around the primary nanofiber core-spun yarn by adopting a second spinning solution to obtain nanofiber core-spun yarn finished products: cutting two nanofiber core-spun yarn finished products, respectively spirally winding the two nanofiber core-spun yarn finished products on two elastic core yarns, and forming the flexible sensor in a crossed manner. According to the core-spun yarn structure, the core yarn is the silver-plated nylon, the outer layer is the electrostatic spinning nanofiber, the sensor can be directly sewn in a fabric, and the core-spun yarn structure has good mechanical performance.