Pub Date : 2024-05-17DOI: 10.2174/0118722121298798240430051039
Xiaoyu An, Chenglong Ren, Leilei Guo, Lianhui Jia, Zhihong Sun, Yongxiang Mei, Haoyu Wang
With the continuous progress of technology and the development of shield enterprises, higher requirements are put forward for speed estimation and system stability in the sensorless control system of induction motors in shield machines. In order to solve the problems of velocity observation error and sliding mode vibration of the induction motor velocity observation method based on sliding mold observer, an improved superhelical sliding mold observer is proposed by combining the currently known invention patents and the information based on the induction motor control. The open square of the current error value is introduced into the continuous function of the sliding variable of the observer, and two different functions are used in the boundary layer to replace the sign function, which reduces the sliding mode noise and vibration problems, and the stability of the observer is proved by the Lyapunov stability theory. After that, a phase-locked loop alternative model-referenced adaptive algorithm is used as the rotational speed observation link, which solves the problem that the conventional model-referenced adaptive algorithm relies on the current-modeled magnetic chain observer. The improved super-helical sliding mode observer and phase-locked loop control method effectively reduce the system vibration and speed estimation error of the motor under different speeds and loading conditions, and the observed currents are smoother, which improves the stability of the system. Simulation and experimental results under different working conditions show the effectiveness of the proposed method.
{"title":"Speed Sensor-less Control of Induction Motor based on Super-helical\u0000Sliding Mold","authors":"Xiaoyu An, Chenglong Ren, Leilei Guo, Lianhui Jia, Zhihong Sun, Yongxiang Mei, Haoyu Wang","doi":"10.2174/0118722121298798240430051039","DOIUrl":"https://doi.org/10.2174/0118722121298798240430051039","url":null,"abstract":"\u0000\u0000With the continuous progress of technology and the development of shield\u0000enterprises, higher requirements are put forward for speed estimation and system stability in the sensorless\u0000control system of induction motors in shield machines.\u0000\u0000\u0000\u0000In order to solve the problems of velocity observation error and sliding mode vibration of\u0000the induction motor velocity observation method based on sliding mold observer, an improved superhelical\u0000sliding mold observer is proposed by combining the currently known invention patents and\u0000the information based on the induction motor control.\u0000\u0000\u0000\u0000The open square of the current error value is introduced into the continuous function of the\u0000sliding variable of the observer, and two different functions are used in the boundary layer to replace\u0000the sign function, which reduces the sliding mode noise and vibration problems, and the stability of\u0000the observer is proved by the Lyapunov stability theory. After that, a phase-locked loop alternative\u0000model-referenced adaptive algorithm is used as the rotational speed observation link, which solves\u0000the problem that the conventional model-referenced adaptive algorithm relies on the current-modeled\u0000magnetic chain observer.\u0000\u0000\u0000\u0000The improved super-helical sliding mode observer and phase-locked loop control method\u0000effectively reduce the system vibration and speed estimation error of the motor under different\u0000speeds and loading conditions, and the observed currents are smoother, which improves the stability\u0000of the system. Simulation and experimental results under different working conditions show the effectiveness\u0000of the proposed method.\u0000","PeriodicalId":40022,"journal":{"name":"Recent Patents on Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140962432","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The article underscores the pivotal significance of sealing membrane pores in augmenting material performance and delves into the foundational principles governing membrane pore sealing. It thoroughly scrutinizes the evolution of membrane pore sealing technology, with a particular emphasis on anodization and micro-arc oxidation processes. Methods for sealing membrane pores are classified into hydration, organic, inorganic techniques, and other approaches to foster comprehension. Furthermore, the article deliberates on novel techniques for sealing membrane coatings, assesses their merits and demerits, and proposes enhancement strategies. These endeavors are geared towards propelling the advancement of membrane pore sealing technology, thereby enhancing efficiency, sustainability, and multifunctionality.
{"title":"Recent Research on Pore Sealing","authors":"Pengxiang Lv, Zhiqiang Xu, Tingting Yin, Qi Dong, Zhen Wang, Jingwen Xu, Rongguo He","doi":"10.2174/0118722121288121240503073959","DOIUrl":"https://doi.org/10.2174/0118722121288121240503073959","url":null,"abstract":"\u0000\u0000The article underscores the pivotal significance of sealing membrane pores in augmenting\u0000material performance and delves into the foundational principles governing membrane pore sealing.\u0000It thoroughly scrutinizes the evolution of membrane pore sealing technology, with a particular emphasis\u0000on anodization and micro-arc oxidation processes. Methods for sealing membrane pores are\u0000classified into hydration, organic, inorganic techniques, and other approaches to foster comprehension.\u0000Furthermore, the article deliberates on novel techniques for sealing membrane coatings, assesses\u0000their merits and demerits, and proposes enhancement strategies. These endeavors are geared towards\u0000propelling the advancement of membrane pore sealing technology, thereby enhancing efficiency,\u0000sustainability, and multifunctionality.\u0000","PeriodicalId":40022,"journal":{"name":"Recent Patents on Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140966120","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-05-17DOI: 10.2174/0118722121303316240509053525
Lu Han, Farui Yan, Xuedong Xie, Yongqi Yang, Baocheng Xie
Industrial robots are mainly used in metal forming, automotive, and electrical and electronics industries. After decades of unremitting efforts, industrial robots have achieved great success. However, problems such as low safety, weak environmental adaptability, and insufficient humancomputer interaction ability of industrial robots have greatly limited the application of industrial robots, and multi-arm collaborative robots came into being in this case. Multi-arm collaborative robots offer high flexibility and precision. Over the years, the application and development of multiarm collaborative robots have been paid more and more attention. This paper aims to summarize the patents related to multi-arm cooperative robots, including their principles, classification, latest progress and future development, in order to meet the needs of the real world. According to the structural characteristics of multi-arm collaborative robots and the requirements of multi-arm collaborative robots application field, the most typical mobile collaborative robots and stationary dual-arm collaborative robots in multi-arm collaborative robots are summarized. By investigating various patents of multi-arm collaborative robots the main problems of multi-arm collaborative robots are summarized and analyzed, such as collisions or conflicts between robotic arms, low power-to-weight ratio, loose structures, and heavy weight of the robot body. In addition, the development trend of multi-arm collaborative robots is also discussed. Multi-arm robots have broad prospects and potential in future applications and development. With the advancement of new technologies, multi-arm collaborative robots will become more efficient, intelligent, safe, and flexible. More relevant patents are expected to be invented in the future.
{"title":"Research Status and Development Trend of Multi-arm Collaborative\u0000Robots","authors":"Lu Han, Farui Yan, Xuedong Xie, Yongqi Yang, Baocheng Xie","doi":"10.2174/0118722121303316240509053525","DOIUrl":"https://doi.org/10.2174/0118722121303316240509053525","url":null,"abstract":"\u0000\u0000Industrial robots are mainly used in metal forming, automotive, and electrical and electronics\u0000industries. After decades of unremitting efforts, industrial robots have achieved great success.\u0000However, problems such as low safety, weak environmental adaptability, and insufficient humancomputer\u0000interaction ability of industrial robots have greatly limited the application of industrial\u0000robots, and multi-arm collaborative robots came into being in this case. Multi-arm collaborative robots\u0000offer high flexibility and precision. Over the years, the application and development of multiarm\u0000collaborative robots have been paid more and more attention. This paper aims to summarize the\u0000patents related to multi-arm cooperative robots, including their principles, classification, latest progress\u0000and future development, in order to meet the needs of the real world. According to the structural\u0000characteristics of multi-arm collaborative robots and the requirements of multi-arm collaborative\u0000robots application field, the most typical mobile collaborative robots and stationary dual-arm collaborative\u0000robots in multi-arm collaborative robots are summarized. By investigating various patents of\u0000multi-arm collaborative robots the main problems of multi-arm collaborative robots are summarized\u0000and analyzed, such as collisions or conflicts between robotic arms, low power-to-weight ratio, loose\u0000structures, and heavy weight of the robot body. In addition, the development trend of multi-arm collaborative\u0000robots is also discussed. Multi-arm robots have broad prospects and potential in future\u0000applications and development. With the advancement of new technologies, multi-arm collaborative\u0000robots will become more efficient, intelligent, safe, and flexible. More relevant patents are expected\u0000to be invented in the future.\u0000","PeriodicalId":40022,"journal":{"name":"Recent Patents on Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140962775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-05-09DOI: 10.2174/0118722121290793240429111623
S. Vispute, Dinesh Goyal, Kriti Sankhla
Identification of important soil nutrients is a very important task for precision farming and developing efficient machine learning models. The existing work shows that the patent is filed and published on a method and device for assessment of soil health parameters and recommendation of fertilizers. The existing work is done for one advice at a time not for several advices. Multiple advices that are taken into account for the task are appropriate crops, organic fertilizer, and combination 1 and combination 2 of fertilizers. Apply feature selection techniques based on Chi-Square, ANOVA and Mutual Information Gain scoring functions such as Select K Best and Select Percentile for multiple agri-advice dataset of Pune District regions to identify important soil health features to reduce the complexity of classification models and in turn reduce space and the computational time of different classification models. This paper presented results of feature selection techniques based on Chi-Square, ANOVA and Mutual Information Gain scoring functions such as Select K Best and Select Percentile for multiple agri-advice datasets of Pune District regions to identify important soil health features. As per Chi-Square, ANOVA and Mutual Information scoring functions with Select K Best and Select Percentile techniques ‘Mn’ was the most important parameter and Cu’ and ‘B’ were the least important parameters among all 11 parameters common in 4 agriculture advices. Whereas Ph, K, Fe, 'OC', 'N', 'S', 'Mn', and 'P' will be used for future research work on the development of an efficient classification algorithm for multi-advice generators.
对于精准农业和开发高效的机器学习模型来说，识别重要的土壤养分是一项非常重要的任务。现有的工作表明，已经申请并公布了一种用于评估土壤健康参数和推荐肥料的方法和设备的专利。现有工作一次只针对一个建议，而不是多个建议。对普纳地区的多个农业建议数据集应用基于 Chi-Square、方差分析和互信息增益评分函数（如选择 K 最佳和选择百分位数）的特征选择技术，以识别重要的土壤健康特征，从而降低分类模型的复杂性，进而减少不同分类模型的空间和计算时间。本文介绍了基于 Chi-Square、方差分析和互信息增益评分函数（如 Select K Best 和 Select Percentile）的特征选择技术对普纳地区多个农业建议数据集的分析结果，以识别重要的土壤健康特征。其中，Ph、K、Fe、'OC'、'N'、'S'、'Mn'和'P'将用于未来为多建议生成器开发高效分类算法的研究工作。
{"title":"Analysis of Soil Health Parameters to Identify Important Soil Nutrients\u0000and Weights Using Feature Engineering for Multiple Agri-Advices","authors":"S. Vispute, Dinesh Goyal, Kriti Sankhla","doi":"10.2174/0118722121290793240429111623","DOIUrl":"https://doi.org/10.2174/0118722121290793240429111623","url":null,"abstract":"\u0000\u0000Identification of important soil nutrients is a very important task for precision\u0000farming and developing efficient machine learning models.\u0000\u0000\u0000\u0000The existing work shows that the patent is filed and published on a method and device for\u0000assessment of soil health parameters and recommendation of fertilizers. The existing work is done\u0000for one advice at a time not for several advices. Multiple advices that are taken into account for the\u0000task are appropriate crops, organic fertilizer, and combination 1 and combination 2 of fertilizers.\u0000\u0000\u0000\u0000Apply feature selection techniques based on Chi-Square, ANOVA and Mutual Information Gain scoring functions such as Select K Best and Select Percentile for multiple agri-advice dataset of Pune District regions to identify important soil health features to reduce the complexity of classification models and in turn reduce space and the computational time of different classification models.\u0000\u0000\u0000\u0000This paper presented results of feature selection techniques based on Chi-Square, ANOVA\u0000and Mutual Information Gain scoring functions such as Select K Best and Select Percentile for multiple\u0000agri-advice datasets of Pune District regions to identify important soil health features.\u0000\u0000\u0000\u0000As per Chi-Square, ANOVA and Mutual Information scoring functions with Select K\u0000Best and Select Percentile techniques ‘Mn’ was the most important parameter and Cu’ and ‘B’ were\u0000the least important parameters among all 11 parameters common in 4 agriculture advices. Whereas\u0000Ph, K, Fe, 'OC', 'N', 'S', 'Mn', and 'P' will be used for future research work on the development of an\u0000efficient classification algorithm for multi-advice generators.\u0000","PeriodicalId":40022,"journal":{"name":"Recent Patents on Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140995725","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-05-08DOI: 10.2174/0118722121280154231208102143
Nayan Medhi, PARTHA PROTIM BORTHAKUR
Gas Hydrates, or Clathrate Hydrates, have been the subject of increasing scientific and industrial attention due to their potential as an alternative energy source, their role in climate change, and their association with geohazards. The growth of new indigenous gas supply sources could impart a significant positive ripple effect on a country's economy, ecological balance, and energy landscape. This burgeoning interest has led to a surge in research and development, resulting in numerous patents related to the extraction, processing, and utilization of gas Hydrates. This review paper aims to provide an up-to-date, comprehensive overview of the properties, formation, detection, production, importance, challenges, and patent landscape of Gas hydrates. The integration of patented technologies into the field underscores the importance of intellectual property in shaping the future of energy, environment, and economic development. Patented technologies in this field are contributing to making this resource more accessible and commercially viable. Moreover, the development of gas hydrates as an energy source could act as a safeguard for manufacturing jobs that are sensitive to gas prices, with proprietary technologies enhancing the efficiency and sustainability of the production process. On the environmental front, an uptick in the consumption of natural gas, known for its cleaner combustion, could herald positive change. Patented innovations in clean and efficient extraction and utilization methods for Gas Hydrates are instrumental in reducing the environmental impact. From the standpoint of energy security, a larger domestic slice of the energy pie, complemented by an extensive array of gas supply alternatives, could equip the nation to better navigate the unpredictable terrain of future energy scenarios. The strategic patenting of key technologies in the exploration, production, and application of Gas Hydrates ensures competitive advantage and fosters innovation, driving forward the energy industry's evolution.
{"title":"An Extensive Review on Gas Hydrates: Recent Patents, Properties,\u0000Formation, Detection, Production, Importance, and Challenges","authors":"Nayan Medhi, PARTHA PROTIM BORTHAKUR","doi":"10.2174/0118722121280154231208102143","DOIUrl":"https://doi.org/10.2174/0118722121280154231208102143","url":null,"abstract":"\u0000\u0000Gas Hydrates, or Clathrate Hydrates, have been the subject of increasing\u0000scientific and industrial attention due to their potential as an alternative energy source, their role in\u0000climate change, and their association with geohazards. The growth of new indigenous gas supply\u0000sources could impart a significant positive ripple effect on a country's economy, ecological balance,\u0000and energy landscape. This burgeoning interest has led to a surge in research and development,\u0000resulting in numerous patents related to the extraction, processing, and utilization of gas\u0000Hydrates.\u0000\u0000\u0000\u0000This review paper aims to provide an up-to-date, comprehensive overview of the\u0000properties, formation, detection, production, importance, challenges, and patent landscape of Gas\u0000hydrates. The integration of patented technologies into the field underscores the importance of intellectual\u0000property in shaping the future of energy, environment, and economic development.\u0000\u0000\u0000\u0000Patented technologies in this field are contributing to making this resource more accessible\u0000and commercially viable. Moreover, the development of gas hydrates as an energy source\u0000could act as a safeguard for manufacturing jobs that are sensitive to gas prices, with proprietary\u0000technologies enhancing the efficiency and sustainability of the production process.\u0000\u0000\u0000\u0000On the environmental front, an uptick in the consumption of natural gas, known for its\u0000cleaner combustion, could herald positive change. Patented innovations in clean and efficient extraction\u0000and utilization methods for Gas Hydrates are instrumental in reducing the environmental\u0000impact. From the standpoint of energy security, a larger domestic slice of the energy pie, complemented\u0000by an extensive array of gas supply alternatives, could equip the nation to better navigate\u0000the unpredictable terrain of future energy scenarios.\u0000\u0000\u0000\u0000The strategic patenting of key technologies in the exploration, production, and application\u0000of Gas Hydrates ensures competitive advantage and fosters innovation, driving forward the\u0000energy industry's evolution.\u0000","PeriodicalId":40022,"journal":{"name":"Recent Patents on Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141000236","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-08DOI: 10.2174/0118722121296447240329131637
Yongqi Yang, Xuedong Xie, Farui Yan, Lu Han, Baocheng Xie
Micro-nano robots have broad applications in sewage purification and DNA testing. Micro- nano robots have significant potential in the medical field， as they have higher therapeutic efficiency and safety than conventional treatment methods. Meanwhile, micro-nano robots provide a new method for treating many diseases. Therefore, as an emerging medical method, the development trend of micro-nano robots is receiving increasing attention. This study aims to provide a new approach to treating diseases that reduces the costs and risks of traditional medical treatments. This paper introduces the operation mechanism of micro-nano robots, summarizes representative patents of micronano robots in medicine, summarizes the classification according to the different driving modes, and analyzes their advantages, disadvantages, and uses. Through the investigation of many micro-nano robots, the current medical micro-nano robots are summarized and analyzed as generally challenging to prepare, difficult to control accurately, with a low degree of intelligence, and poor accuracy. Finally, the future development trend of medical micro-nano robots is overlooked. Optimizing the preparation method can significantly reduce the production cost of micro-nano robots. Mixing and driving modes can drive the micro-nano robots more efficiently. Improving the intelligence of micro-nano robots can allow them to perform more complex tasks. Improved imaging techniques allow for more precise control of the micro-nano robots. Finally, the article forecasts that micro-nano robots will develop towards the trends of non-toxic, intelligent, and controllable directions.
微纳机器人在污水净化和 DNA 检测方面有着广泛的应用。与传统治疗方法相比，微纳机器人具有更高的治疗效率和安全性，在医疗领域具有巨大潜力。同时，微纳机器人为许多疾病的治疗提供了一种新方法。因此，作为一种新兴的医疗方法，微纳机器人的发展趋势越来越受到人们的关注。本研究旨在提供一种治疗疾病的新方法，降低传统医疗的成本和风险。本文介绍了微纳机器人的工作机理，总结了微纳机器人在医学领域的代表性专利，根据不同的驱动模式进行了分类，并分析了其优缺点和用途。通过对众多微纳机器人的调查，总结分析了当前医疗微纳机器人普遍存在的制备难度大、难以精确控制、智能化程度低、精度差等问题。最后，对医用微纳机器人的未来发展趋势进行了展望。优化制备方法可以大大降低微纳机器人的生产成本。混合和驱动模式可以更高效地驱动微纳机器人。提高微纳机器人的智能可以使它们执行更复杂的任务。改进成像技术可以更精确地控制微纳机器人。最后，文章预测微纳机器人将朝着无毒、智能和可控的方向发展。
{"title":"Current Status of Patent Research on Medical Micro-nano Robot","authors":"Yongqi Yang, Xuedong Xie, Farui Yan, Lu Han, Baocheng Xie","doi":"10.2174/0118722121296447240329131637","DOIUrl":"https://doi.org/10.2174/0118722121296447240329131637","url":null,"abstract":"\u0000\u0000Micro-nano robots have broad applications in sewage purification and DNA testing. Micro-\u0000nano robots have significant potential in the medical field， as they have higher therapeutic efficiency\u0000and safety than conventional treatment methods. Meanwhile, micro-nano robots provide a new\u0000method for treating many diseases. Therefore, as an emerging medical method, the development trend\u0000of micro-nano robots is receiving increasing attention. This study aims to provide a new approach to\u0000treating diseases that reduces the costs and risks of traditional medical treatments. This paper introduces\u0000the operation mechanism of micro-nano robots, summarizes representative patents of micronano\u0000robots in medicine, summarizes the classification according to the different driving modes, and\u0000analyzes their advantages, disadvantages, and uses. Through the investigation of many micro-nano\u0000robots, the current medical micro-nano robots are summarized and analyzed as generally challenging\u0000to prepare, difficult to control accurately, with a low degree of intelligence, and poor accuracy. Finally,\u0000the future development trend of medical micro-nano robots is overlooked. Optimizing the preparation\u0000method can significantly reduce the production cost of micro-nano robots. Mixing and driving\u0000modes can drive the micro-nano robots more efficiently. Improving the intelligence of micro-nano\u0000robots can allow them to perform more complex tasks. Improved imaging techniques allow for more\u0000precise control of the micro-nano robots. Finally, the article forecasts that micro-nano robots will\u0000develop towards the trends of non-toxic, intelligent, and controllable directions.\u0000","PeriodicalId":40022,"journal":{"name":"Recent Patents on Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140732452","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-04DOI: 10.2174/0118722121292028240323195759
Yuan Zhang, Shuai Lu, Yupeng Yang, Enwen Zhou
The nozzle is one of the parts of a 3D printer that cannot be missed because of its widespread popularity in recent years. The nozzle's structure determines the quality of the printed product; therefore, selecting a suitable nozzle structure is crucial. With the advancement of 3D printing technology in recent years, 3D printers have progressively come under investigation. Examining the design of the nozzle, feeding mechanism, and printing platform can help to increase the quality of the prints. The design and enhancement of the nozzle structure are beneficial to the advancement of 3D printing technology since it is one of the key elements influencing print quality. Using the research methods, research content, and invention structure of the most recent representative patents on this nozzle structure, the features and operating principle of the 3D printed nozzle structure are illustrated. To classify and examine the nozzle temperature and nozzle clogging that impact the nozzles, a patent analysis of various types of 3D printing nozzle structures is carried out. Future trends in 3D printing nozzle structures are also covered. The issues caused by nozzle work can be resolved to increase product quality and precision by comparing various 3D printing nozzle structures. This will also lead to the invention of more relevant patents in the future, including those about printing numerous nozzles and high-strength metals.
喷嘴是三维打印机中不可或缺的部件之一，因为近年来它得到了广泛的普及。喷嘴的结构决定了打印产品的质量，因此，选择合适的喷嘴结构至关重要。近年来，随着 3D 打印技术的发展，3D 打印机逐渐受到人们的关注。近年来，随着三维打印技术的发展，对三维打印机的研究也在不断深入，对喷嘴、进料机构和打印平台的设计进行研究有助于提高打印质量。喷嘴结构是影响打印质量的关键因素之一，因此对喷嘴结构的设计和改进有利于促进3D打印技术的发展。利用该喷嘴结构的最新代表性专利的研究方法、研究内容和发明结构，说明了3D打印喷嘴结构的特点和工作原理。为了对影响喷嘴的喷嘴温度和喷嘴堵塞进行分类和研究，对各种类型的3D打印喷嘴结构进行了专利分析。通过比较各种 3D 打印喷嘴结构，可以解决喷嘴工作引起的问题，从而提高产品质量和精度。通过比较各种三维打印喷嘴结构，可以解决喷嘴工作所带来的问题，提高产品质量和精度，这也将促使未来发明更多相关专利，包括有关打印众多喷嘴和高强度金属的专利。
{"title":"Development and Outlook for the FDM Printed Nozzle Structure","authors":"Yuan Zhang, Shuai Lu, Yupeng Yang, Enwen Zhou","doi":"10.2174/0118722121292028240323195759","DOIUrl":"https://doi.org/10.2174/0118722121292028240323195759","url":null,"abstract":"\u0000\u0000The nozzle is one of the parts of a 3D printer that cannot be missed because of its widespread\u0000popularity in recent years. The nozzle's structure determines the quality of the printed product;\u0000therefore, selecting a suitable nozzle structure is crucial.\u0000With the advancement of 3D printing technology in recent years, 3D printers have progressively\u0000come under investigation. Examining the design of the nozzle, feeding mechanism, and printing\u0000platform can help to increase the quality of the prints. The design and enhancement of the nozzle\u0000structure are beneficial to the advancement of 3D printing technology since it is one of the key elements\u0000influencing print quality.\u0000Using the research methods, research content, and invention structure of the most recent representative\u0000patents on this nozzle structure, the features and operating principle of the 3D printed nozzle\u0000structure are illustrated.\u0000To classify and examine the nozzle temperature and nozzle clogging that impact the nozzles, a patent\u0000analysis of various types of 3D printing nozzle structures is carried out. Future trends in 3D printing\u0000nozzle structures are also covered.\u0000The issues caused by nozzle work can be resolved to increase product quality and precision by comparing\u0000various 3D printing nozzle structures. This will also lead to the invention of more relevant\u0000patents in the future, including those about printing numerous nozzles and high-strength metals.\u0000","PeriodicalId":40022,"journal":{"name":"Recent Patents on Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140743403","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-04DOI: 10.2174/0118722121292206240318064149
Yuan Zhang, Yupeng Yang, Shuai Lu, Enwen Zhou
Robots for pipeline inspection are frequently employed in long-distance oil, wastewater, and natural gas pipelines. Much complex research is being conductedon pipeline inspection robots, including work on fluid-driven and non-fluid-driven, among other things. Research on pipeline inspection robots can be advanced by examining their current stage of development. Additionally, pipeline inspection robots may be able to promote the growth of the pipeline transportation sector by creating new structures. This study aims to examine the benefits and drawbacks of several pipeline inspection robots and theirdevelopment trend through the lens of the most recent advancements in the field. Through the structure and application scenarios of the latest representative patents of pipeline inspection robots, the working principle and characteristics of pipeline inspection robots are demonstrated. The shortcomings of the current pipeline inspection robots are highlighted, along with potential future development pathways and research issues, by comparing pipeline inspection robots of various structures. The development of pipeline inspection robots has benefited the construction of sewage, oil, natural gas, and long-distance pipelines, as well as long-distance pipeline transportation. Because of these robots' unique features and ample room for advancement, pipeline inspection robots have even more development prospects.
{"title":"Development and Outlook for Pipeline Inspection Robots","authors":"Yuan Zhang, Yupeng Yang, Shuai Lu, Enwen Zhou","doi":"10.2174/0118722121292206240318064149","DOIUrl":"https://doi.org/10.2174/0118722121292206240318064149","url":null,"abstract":"\u0000\u0000Robots for pipeline inspection are frequently employed in long-distance oil,\u0000wastewater, and natural gas pipelines. Much complex research is being conductedon pipeline inspection\u0000robots, including work on fluid-driven and non-fluid-driven, among other things. Research on\u0000pipeline inspection robots can be advanced by examining their current stage of development. Additionally,\u0000pipeline inspection robots may be able to promote the growth of the pipeline transportation\u0000sector by creating new structures.\u0000\u0000\u0000\u0000This study aims to examine the benefits and drawbacks of several pipeline inspection\u0000robots and theirdevelopment trend through the lens of the most recent advancements in the field.\u0000\u0000\u0000\u0000Through the structure and application scenarios of the latest representative patents of pipeline\u0000inspection robots, the working principle and characteristics of pipeline inspection robots are\u0000demonstrated.\u0000\u0000\u0000\u0000The shortcomings of the current pipeline inspection robots are highlighted, along with potential\u0000future development pathways and research issues, by comparing pipeline inspection robots of\u0000various structures.\u0000\u0000\u0000\u0000The development of pipeline inspection robots has benefited the construction of sewage,\u0000oil, natural gas, and long-distance pipelines, as well as long-distance pipeline transportation.\u0000Because of these robots' unique features and ample room for advancement, pipeline inspection robots\u0000have even more development prospects.\u0000","PeriodicalId":40022,"journal":{"name":"Recent Patents on Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140742235","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-03DOI: 10.2174/0118722121294966240304051356
Jianying Li, Donglai Li, Shuxin Chen, Wang Rong
In various specific application domains, electro-hydraulic servo systems are widely adopted due to their high power-to-volume ratio, superior dynamic response performance, and extremely high control accuracy. However, the inevitable presence of nonlinear factors in the system poses a series of challenges for precise mathematical modeling and the design and application of different forms of control strategies. This article aims to explore how various control strategies are specifically implemented to address the nonlinear characteristics of electro-hydraulic servo systems, building upon the research progress in modeling these systems considering nonlinear factors. Subsequently, the article summarizes their innovative applications in electro-hydraulic servo systems. Simultaneously, relevant patents and technologies were reviewed and summarized. The paper provides a detailed comparison and analysis of various nonlinear modeling methods, with a particular focus on the significance of neural networks and fuzzy logic control in enhancing the performance of electro-hydraulic servo systems. The article reveals significant advancements in modern control strategies in dealing with uncertainties and disturbances within the system, offering new perspectives and ideas for improving system efficiency and achieving energy resource conservation with technological progress. The review provides a series of practical recommendations aimed at optimizing the performance of electro-hydraulic servo systems. Despite progress in multiple research endeavors, future research should focus on further enhancing system performance and applying these strategies to a broader range of scenarios.
{"title":"Research Progress on Nonlinear Modeling of Electro-Hydraulic Servo Systems and Innovative Applications of Control Strategies","authors":"Jianying Li, Donglai Li, Shuxin Chen, Wang Rong","doi":"10.2174/0118722121294966240304051356","DOIUrl":"https://doi.org/10.2174/0118722121294966240304051356","url":null,"abstract":"\u0000\u0000In various specific application domains, electro-hydraulic servo systems are widely\u0000adopted due to their high power-to-volume ratio, superior dynamic response performance, and extremely\u0000high control accuracy. However, the inevitable presence of nonlinear factors in the system\u0000poses a series of challenges for precise mathematical modeling and the design and application of\u0000different forms of control strategies. This article aims to explore how various control strategies are\u0000specifically implemented to address the nonlinear characteristics of electro-hydraulic servo systems,\u0000building upon the research progress in modeling these systems considering nonlinear factors. Subsequently,\u0000the article summarizes their innovative applications in electro-hydraulic servo systems.\u0000Simultaneously, relevant patents and technologies were reviewed and summarized. The paper provides\u0000a detailed comparison and analysis of various nonlinear modeling methods, with a particular\u0000focus on the significance of neural networks and fuzzy logic control in enhancing the performance of\u0000electro-hydraulic servo systems. The article reveals significant advancements in modern control\u0000strategies in dealing with uncertainties and disturbances within the system, offering new perspectives\u0000and ideas for improving system efficiency and achieving energy resource conservation with technological\u0000progress. The review provides a series of practical recommendations aimed at optimizing the\u0000performance of electro-hydraulic servo systems. Despite progress in multiple research endeavors,\u0000future research should focus on further enhancing system performance and applying these strategies\u0000to a broader range of scenarios.\u0000","PeriodicalId":40022,"journal":{"name":"Recent Patents on Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140750246","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-03-21DOI: 10.2174/0118722121296804240315052922
Xuedong Xie, Yongqi Yang, Lu Han, Farui Yan, Baocheng Xie
The application of electric vehicles in daily life is becoming increasingly widespread. However, the heat dissipation issues of the electric motors directly impact electric vehicles' stability and safety. Thus, research on the heat dissipation of the electric motor is conducive to improving the reliability of the drive motor and ensuring the overall stability and safety of electric vehicles; there is a growing emphasis on the development trends of heat dissipation technologies for electric vehicle drive motors. In order to meet the increasing requirements of electric vehicles for stability and safety and to solve the problems of low heat dissipation efficiency of electric vehicle drive motors, the size of heat dissipation devices, and the short life span caused by the high temperature of drive motors, the heat dissipation of drive motors is optimized and the heat dissipation structure is improved. Based on the structural characteristics of heat dissipation of electric vehicle drive motors, various representative patents related to the current heat dissipation technology of electric vehicle drive motors are summarized. By summarizing a large number of patents on electric vehicle drive motor heat dissipation technology, it is concluded that the current research on electric vehicle drive motor heat dissipation mainly focuses on liquid heat dissipation or gas heat dissipation and that the main reason for the heat dissipation problem of electric vehicle drive motors is the low heat dissipation efficiency due to over-reliance on a single heat dissipation method, and the reliability is poor due to failure to reasonably control heat dissipation according to the need for heat dissipation. This paper proposes a new idea of heat dissipation for electric vehicle drive motors, which effectively combines liquid heat dissipation and gas heat dissipation. Moreover, the heat dissipation efficiency will be significantly higher than the existing heat dissipation scheme, and the proposed heat dissipation concept of "ondemand distribution" will effectively improve the utilization rate of the heat dissipation medium and reduce the heat dissipation cost and the reasonable heat dissipation structure will reduce the volume of the heat dissipation device. The reasonable heat dissipation structure will also reduce the volume of the heat dissipation device. In addition, the future development of heat dissipation technology for electric vehicle drive motors is also discussed. The heat dissipation scheme proposed in this paper will effectively improve the heat dissipation problem of electric vehicle drive motors. Compared with the existing heat dissipation methods, the heat dissipation efficiency of the heat dissipation scheme proposed in this paper will be improved by more than 8.5%, and the service life of the drive motor will be extended by more than 5.1%, while the size of the electric vehicle drive motor will be reduced by 6%. More related patents will be i
{"title":"Research Status of Heat Dissipation Technology for Electric Vehicle Drive\u0000Motors","authors":"Xuedong Xie, Yongqi Yang, Lu Han, Farui Yan, Baocheng Xie","doi":"10.2174/0118722121296804240315052922","DOIUrl":"https://doi.org/10.2174/0118722121296804240315052922","url":null,"abstract":"\u0000\u0000The application of electric vehicles in daily life is becoming increasingly\u0000widespread. However, the heat dissipation issues of the electric motors directly impact electric vehicles'\u0000stability and safety. Thus, research on the heat dissipation of the electric motor is conducive to\u0000improving the reliability of the drive motor and ensuring the overall stability and safety of electric\u0000vehicles; there is a growing emphasis on the development trends of heat dissipation technologies for\u0000electric vehicle drive motors.\u0000\u0000\u0000\u0000In order to meet the increasing requirements of electric vehicles for stability and safety\u0000and to solve the problems of low heat dissipation efficiency of electric vehicle drive motors, the size\u0000of heat dissipation devices, and the short life span caused by the high temperature of drive motors,\u0000the heat dissipation of drive motors is optimized and the heat dissipation structure is improved.\u0000\u0000\u0000\u0000Based on the structural characteristics of heat dissipation of electric vehicle drive motors,\u0000various representative patents related to the current heat dissipation technology of electric vehicle\u0000drive motors are summarized.\u0000\u0000\u0000\u0000By summarizing a large number of patents on electric vehicle drive motor heat dissipation\u0000technology, it is concluded that the current research on electric vehicle drive motor heat dissipation\u0000mainly focuses on liquid heat dissipation or gas heat dissipation and that the main reason for the heat\u0000dissipation problem of electric vehicle drive motors is the low heat dissipation efficiency due to\u0000over-reliance on a single heat dissipation method, and the reliability is poor due to failure to reasonably\u0000control heat dissipation according to the need for heat dissipation. This paper proposes a new\u0000idea of heat dissipation for electric vehicle drive motors, which effectively combines liquid heat dissipation\u0000and gas heat dissipation. Moreover, the heat dissipation efficiency will be significantly higher\u0000than the existing heat dissipation scheme, and the proposed heat dissipation concept of \"ondemand\u0000distribution\" will effectively improve the utilization rate of the heat dissipation medium and\u0000reduce the heat dissipation cost and the reasonable heat dissipation structure will reduce the volume\u0000of the heat dissipation device. The reasonable heat dissipation structure will also reduce the volume\u0000of the heat dissipation device. In addition, the future development of heat dissipation technology for\u0000electric vehicle drive motors is also discussed.\u0000\u0000\u0000\u0000The heat dissipation scheme proposed in this paper will effectively improve the heat\u0000dissipation problem of electric vehicle drive motors. Compared with the existing heat dissipation\u0000methods, the heat dissipation efficiency of the heat dissipation scheme proposed in this paper will be\u0000improved by more than 8.5%, and the service life of the drive motor will be extended by more than\u00005.1%, while the size of the electric vehicle drive motor will be reduced by 6%. More related patents\u0000will be i","PeriodicalId":40022,"journal":{"name":"Recent Patents on Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140387595","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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