Continuous and Precise Positioning in Urban Environments by Tightly Coupled Integration of GNSS, INS and Vision

时间: 2024-05-30 20:08:32 浏览: 16
该论文介绍了一种基于全球导航卫星系统(GNSS)、惯性导航系统(INS)和视觉传感器的紧密耦合集成方法,实现在城市环境下的连续和精确定位。该方法利用GNSS提供的位置信息和INS提供的姿态信息,通过视觉传感器获取城市环境的地标信息,并将这些信息紧密耦合,实现高精度的定位。该方法在城市峡谷、高建筑群和城市峡谷内部等复杂环境下进行了测试,证明了其在城市环境下实现高精度定位的可行性和有效性。
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Describe the background information of Significance of analyzing metal-transfer images for quality control and process optimization in detail

In the manufacturing industry, metal transfer imaging is an important tool for quality control and process optimization. Metal transfer imaging involves the use of a high-resolution camera to capture images of the surface of a metal workpiece during the manufacturing process. These images can be analyzed to identify defects, monitor the progress of the manufacturing process, and optimize process parameters to improve quality and efficiency. Metal transfer imaging is especially important in industries such as automotive, aerospace, and medical device manufacturing, where high-quality, precise parts are critical to safety and performance. By using metal transfer imaging, manufacturers can detect defects such as cracks, voids, and surface irregularities before they become serious problems. This helps to reduce scrap and rework, which can be costly and time-consuming. In addition to quality control, metal transfer imaging can also be used for process optimization. By analyzing the images, manufacturers can identify areas where the process can be improved to increase efficiency, reduce cycle time, and lower costs. For example, metal transfer imaging can be used to identify areas where the cutting tool is not making contact with the workpiece, indicating that the tool needs to be adjusted. It can also be used to monitor the temperature and pressure of the cutting fluid, which can affect the quality of the final product. Metal transfer imaging is typically used in conjunction with other quality control and process optimization tools, such as statistical process control, Six Sigma, and lean manufacturing. By integrating these tools, manufacturers can create a comprehensive quality control and process optimization system that helps to ensure high-quality, efficient production. Overall, the significance of analyzing metal-transfer images for quality control and process optimization lies in its ability to help manufacturers detect defects, monitor process progress, and optimize process parameters. By using metal transfer imaging, manufacturers can improve quality, increase efficiency, and reduce costs, ultimately leading to a more successful and profitable manufacturing operation.

better to follow, follow to be better: towards precise supervision of feature super-resolution for small object detection

该论文的中文翻译为“跟随更好,追随更好:面向精确监督小目标检测的特征超分辨率”。该论文主要研究如何通过特征超分辨率来提高小目标检测的精度,并提出了一个跟随式训练方法来实现精确监督。该方法不仅能有效提高小目标检测的准确率,还能降低模型的计算复杂度,具有很好的应用前景。

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润色下面英文:The controlled drug delivery systems, due to their precise control of drug release in spatiotemporal level triggered by specific stimulating factors and advantages such as higher utilization ratio of drug, less side-effects to normal tissues and so forth, provide a new strategy for the precise treatment of many serious diseases, especially tumors. The materials that constitute the controlled drug delivery systems are called “smart materials” and they can respond to the stimuli of some internal (pH, redox, enzymes, etc.) or external (temperature, electrical/magnetic, ultrasonic and optical, etc.) environments. Before and after the response to the specific stimulus, the composition or conformational of smart materials will be changed, damaging the original balance of the delivery systems and releasing the drug from the delivery systems. Amongst them, the photo-controlled drug delivery systems, which display drug release controlled by light, demonstrated extensive potential applications, and received wide attention from researchers. In recent years, photo-controlled drug delivery systems based on different photo-responsive groups have been designed and developed for precise photo-controlled release of drugs. Herein, in this review, we introduced four photo-responsive groups including photocleavage groups, photoisomerization groups, photo-induced rearrangement groups and photocrosslinking groups, and their different photo-responsive mechanisms. Firstly, the photocleavage groups represented by O-nitrobenzyl are able to absorb the energy of the photons, inducing the cleavage of some specific covalent bonds. Secondly, azobenzenes, as a kind of photoisomerization groups, are able to convert reversibly between the apolar trans form and the polar cis form upon different light irradiation. Thirdly, 2-diazo-1,2-naphthoquinone as the representative of the photo-induced rearrangement groups will absorb specific photon energy, carrying out Wolff rearrangement reaction. Finally, coumarin is a promising category photocrosslinking groups that can undergo [2+2] cycloaddition reactions under light irradiation. The research progress of photo-controlled drug delivery systems based on different photo-responsive mechanisms were mainly reviewed. Additionally, the existing problems and the future research perspectives of photo-controlled drug delivery systems were proposed.

Implementing the UAV waypoint planning algorithm in MATLAB can be achieved through a variety of methods to ensure precise and efficient results. Firstly, we can design a user-friendly interface using MATLAB's GUI function. This intuitive interface allows users to easily input flight mission parameters and flight environment models. Secondly, we can take advantage of MATLAB's matrix operations and graphic drawing functions. These tools enable us to calculate the waypoint planning algorithm and provide a comprehensive visualization of the results. Thirdly, we can use MATLAB's optimization toolbox, which includes powerful functions like fmincon. These tools allow us to optimize the results of the waypoint planning algorithm. By defining suitable optimization objectives, such as minimizing total distance or energy consumption, we can find the optimal set of waypoints. Finally, we can verify the accuracy and feasibility of the waypoint planning results by conducting realistic UAV flight simulations using MATLAB's simulation capabilities, such as Simulink. By inputting the calculated waypoints into the UAV flight model, we can observe and analyze the flight trajectory and the UAV's state to ensure the planning results are accurate and reliable. By carefully choosing the right algorithms, optimizing the planning process, and fully utilizing the capabilities of MATLAB, we can achieve high-quality waypoint planning results that meet the specific requirements of each flight mission. These methods, integrated within MATLAB, provide a human-like approach to UAV waypoint planning, ensuring accuracy, effectiveness, and detection avoidance.还能检测出来,这个基础上再修改

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