5results about How to "Ease of design optimization" patented technology

The invention relates to the technical field of tire fluid pressure testing, provides a tire tread fluid pressure testing method and system, and aims to improve the problem of low testing accuracy in the prior art, a neural network model is trained by collecting various data, an initial control model is obtained, and after a testing task is received, a tire tread fluid pressure testing result is obtained. Test equipment control parameters are dynamically adjusted according to task requirements, test data are collected in real time for iterative optimization, the test accuracy is improved, if errors exceed the range, historical data are used for training a random forest model for replacement, meanwhile, the system can simulate natural environment conditions for testing, the test authenticity is improved, and the test efficiency is improved. According to the invention, through the intelligent and modular design, the test accuracy is significantly improved.

The utility model discloses a circularly polarized broadband antenna based on a rotating metasurface. The circularly polarized broadband antenna comprises the rotating metasurface, a dielectric substrate I, a dielectric substrate II, a rectangular patch, a truncated square patch, a metal ground layer and a coaxial feed port, the rotary metasurface is located on the upper surface of the first dielectric substrate and composed of thirty-six rectangular metal patches with chamfers, the rectangular patches and the chamfered square patches are located on the upper surface of the second dielectric substrate, the metal ground layer is located on the lower surface of the second dielectric substrate, the coaxial feed port is connected with the microstrip line on the second dielectric substrate, and the coaxial feed port is connected with the microstrip line on the second dielectric substrate. The groove dug out of the metal ground layer is the outer center of the coaxial feed port. The microwave circularly-polarized wide-axial-ratio antenna provided by the utility model is of a planar structure on the whole, has a low profile, is very simple in structure, is easy to design and optimize, is easy to process, manufacture and integrate, and is favorable for realizing low cost.

The present invention discloses an ultra-wideband surface enhanced Raman scattering chip and its application, which includes a substrate layer and a surface enhancement layer from the bottom layer to the top layer in sequence; wherein the surface enhancement layer is provided with a metal periodic micro-nano structure array, the metal periodic micro-nano structure array is composed of periodically distributed independent metal square units, the square units are diamond or square structures with thickness, and the vertex angles between adjacent structures are relative to form a chain structure. The present invention has ultra-wideband SERS enhancement characteristics, can keep the enhanced hot spot position unchanged within an ultra-wide bandwidth range, and continuously maintain a SERS enhancement coefficient higher than 10^5, and can even reach the level of 10^8; its enhanced bandwidth can reach the micron level, or even the level of 10 microns, and has high robustness to changes in the refractive index environment; it has extremely high practical value for Raman spectroscopy analysis and detection of substances, especially for the detection of unlabeled unknown substances, and has a simple structure and is easy to prepare, and has broad application prospects.

The present invention discloses a root-type anchor and its realization method, comprising a first stressed steel bar, the outer side of the first stressed steel bar is sleeved with a first inner connecting sleeve, and the outer side of the first inner connecting sleeve is sleeved with a first additional outer anchor, and the first additional anchor bar is installed below the first stressed steel bar. The root-type anchor and its realization method have simple structure, are easy to mass produce, have low cost, and can be widely promoted and applied; the operation is simple and fast, which can improve the work efficiency of steel bar anchoring construction and reduce labor costs; the anti-cracking effect of the transverse steel bar in the anchoring area of ​​the component can be fully exerted, saving steel; the concrete in the anchoring area can fully exert the mechanical effect of the material, saving the amount of concrete, and conforming to the concept of green construction.

This utility model discloses a battery top cover assembly. The top cover body has a terminal post with a boss formed on it. A connecting strip matching the boss is installed on the terminal post, and a connecting hole matching the boss is formed on the connecting strip. A first gap for welding is formed between the outer wall of the boss and the connecting hole. The diameter of the connecting hole is a first diameter, and the diameter of the boss is a second diameter. The first diameter is smaller than the second diameter, and the second diameter is equal to the first diameter + 0 to 0.1 mm. The height of the boss is equal to the thickness of the connecting strip. Compared with the prior art, this utility model's battery top cover assembly completes the welding of the terminal post and connecting strip using low-power welding. This not only reduces welding costs but also improves welding quality, reduces welding difficulty, facilitates the compact structure and weight control of the battery top cover assembly, optimizes the overall design of the battery pack, and is more suitable for industrial production applications.