Transmission lines are primarily deployed overhead, and the transmission tower, acting as the fulcrum, can be affected by the unbalanced force of the wire and extreme weather, resulting in the transmission tower tilt, deformation, or collapse. This can jeopardize the safe operation of the power grid and even cause widespread failures, resulting in significant economic losses. Given the limitations of current tower tilt detection methods, this paper proposes a tower tilt detection and analysis method based on monocular vision images. The monocular camera collects the profile and contour features of the tower, and the tower tilt model is combined to realize the calculation and analysis of the tower tilt. Through this improved monocular visual monitoring method, the perception accuracy of the tower tilt is improved by 7.5%, and the axial eccentricity is accurate to ±2 mm. The method provides real-time reliability and simple operation for detecting tower inclination, significantly reducing staff inspection intensity and ensuring the power system operates safely and efficiently.

With the rapid development of modern science and technology, the application of infrared (IR) optical thin films is increasingly widespread, including in aerospace, autonomous driving, military development, and the fight against Coronavirus Disease 2019 (COVID-19), in which thin film devices play an important role. Similarly, with the improvement of user requirements, the precision requirements for the preparation of optical films are also developing and improving. In this paper, the IR optical thickness monitoring system is studied with the noble algorithm introducing the phase-locked amplifier current and single film reflectivity coefficient. An optical control system is developed to monitor the IR thin film accurately, which aids the IR narrow-band filter film research.

Background Wheat (Triticum aestivum L.) is the main food crop in the worldwide. Low soil phosphorus levels and drought conditions are important constraints for wheat production in most of the areas where wheat is grown. In this study, the analysis of mineral elements and metabolites were used to investigate the ionomic and metabolic responses to drought stress of wheat plants cultured by low phosphorus (LP) and conventional phosphorus (CP) supply, respectively. Results We found that the wheat plants subjected to LP treatment had denser roots, and the total root volume was significantly higher than that under the CP treatment. The roots cultured by two phosphorus levels underwent the process of programmed cell death under drought stress, however, the genomic DNA degradation level of the roots in LP was significantly weaker than that in CP after rehydration for 3d. The analysis of mineral elements and metabolites showed that CP treatment was more sensitive to drought stress, and drought stress had more influence on the shoots of CP treatment than the roots. While the effect of drought stress on LP treatment roots were greater than that on shoots. With the extension of drought stress, the effect on sugar metabolism was greater. Conclusions The wheat plants under LP treatment was more adaptive to drought stress than that in CP treatment, which probably is based on the presence of the comprehensive mobilization of sugar metabolism responsible for the regulation of osmotic balance, as well as the accumulation of various organic acids responsible for the maintenance of the intracellular ion homeostasis.

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