{"title":"A novel magnetorheological damper combing multi-disc and multi-drum structures*","authors":"Jiajun Zou, Aibin Zhu, Jiyuan Song, Diyang Dang, Xu Zhou, Yulin Zhang","doi":"10.1109/ur55393.2022.9826257","DOIUrl":"https://doi.org/10.1109/ur55393.2022.9826257","url":null,"abstract":"This article proposes a novel magnetorheological (MR) damper offering a higher torque-volume ratio, which are typically designed for knee joints of exoskeletons. By combining the advantages of the multi-disc and multi-drum structures, the magnetic field generated by the coil is fully utilized, so that the MR damper can generate a greater torque within a limited volume. Establish magnetic circuit and theoretical model to provide theoretical basis for finite element analysis. The magnetic flux density is obtained by finite element analysis and the geometric parameters of the damper are optimized by response surface optimization to generate the maximum torque-volume ratio. Finally, we found that the damper designed have a higher torque-volume ratio.","PeriodicalId":398742,"journal":{"name":"2022 19th International Conference on Ubiquitous Robots (UR)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114653738","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}
Jisoo Na, Sanghyeon Park, Doyon Kim, Yebin Park, Y. Choi, Jeongeun Kim, Jisan Lee
{"title":"Development of mHealth Literacy and Digital Health Equity Assessment Scale to Improve Health Equity","authors":"Jisoo Na, Sanghyeon Park, Doyon Kim, Yebin Park, Y. Choi, Jeongeun Kim, Jisan Lee","doi":"10.1109/ur55393.2022.9826269","DOIUrl":"https://doi.org/10.1109/ur55393.2022.9826269","url":null,"abstract":"Recently, the demand for using noncontact medical services using smartphones has increased in the medical field. However, there is a disparity in the use of digital devices because users have different capabilities, utilization levels, and access to technology. This study aims to develop a mHealth literacy and digital health equity assessment scale to promote health equity. ‘Digital Health Equity and Mobile Literacy Scale (DiHEMLS)’, an initial assessment tool, was derived by analyzing mHealth literacy and digital health equity-related measuring tools and assessment indicators. After that, Content Validity Index (CVI) was calculated for six patients with inflammatory bowel disease and six health experts, and the items were revised, and the initial tool items were reduced to 36 out of 78 items. Afterwards, a secondary CVI was calculated for eight experts, and the final assessment scale ‘mHealth Literacy and Digital Health Equity Scale (mLDiHES)’ consisting of 40 items was derived by adding six general characteristics items. ‘mLDiHES’ will be used to identify the degree of digital health imbalance. Using this assessment scale, it is possible to measure the degree of understanding and utilization of mHealth devices and healthcare services of users.","PeriodicalId":398742,"journal":{"name":"2022 19th International Conference on Ubiquitous Robots (UR)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122168339","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}
Alexander Verkerk, Rawiri Hohepa, Craig J. Sutherland
{"title":"Impact of Additional Programming Constructs on a Tangible Programming Language for Robots","authors":"Alexander Verkerk, Rawiri Hohepa, Craig J. Sutherland","doi":"10.1109/ur55393.2022.9826287","DOIUrl":"https://doi.org/10.1109/ur55393.2022.9826287","url":null,"abstract":"Introducing young children to robotics programming can be difficult. Children have to learn not only how to program but also how to use the components of a computer (e.g. keyboard and mouse). Tangible-based programming languages provide an alternate approach as children can focus directly on learning programming. However, there are no guidelines on how to produce tangible programming languages. This paper reports on our attempt to develop and evaluate such a language. Designing a tangible language requires a trade-off between completeness and complexity in the language, with designers aiming to reduce complexity while increasing completeness. Most participants agreed that using colour helped the language, but all other features had mixed results.","PeriodicalId":398742,"journal":{"name":"2022 19th International Conference on Ubiquitous Robots (UR)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129139969","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}
Dong-Ki Noh, Junho Choi, Jeongsik Choi, Dasol Byun, Youngjae Kim, Hyoung-Rock Kim, Seungmin Baek, Seunghwan Lee, H. Myung
{"title":"MASS: Multi-Agent Scheduling System for Intelligent Surveillance","authors":"Dong-Ki Noh, Junho Choi, Jeongsik Choi, Dasol Byun, Youngjae Kim, Hyoung-Rock Kim, Seungmin Baek, Seunghwan Lee, H. Myung","doi":"10.1109/ur55393.2022.9826281","DOIUrl":"https://doi.org/10.1109/ur55393.2022.9826281","url":null,"abstract":"With the recent development of autonomous driving technology, attempts to apply autonomous mobile robots to security and surveillance have been continued. Algorithms such as localization, obstacle avoidance, and path planning are essential for indoor autonomous driving of mobile robots. Among them, in this study, we deal with the path planning algorithm of mobile robots. In particular, the goal is to generate a path that covers the entire area of the given map, focusing on patrolling and guarding. We propose an algorithm that divides the generated path into multiple paths and allocates it to multi-robots by clustering. In addition, we propose a path planning algorithm that considers weights assigned on the probability map. We evaluated the performance of robot path generation with a real-world map from a testbed at the Korea Institute of Robotics and Technology Convergence (KIRO) in Pohang, Korea. This study also presents the results of cases with and without importance weights.","PeriodicalId":398742,"journal":{"name":"2022 19th International Conference on Ubiquitous Robots (UR)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130256232","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}
Wanju Kim, Geun Young Hong, E. V. Poorten, Youngjin Choi
{"title":"Implementation of Robotic Shoulder Complex actuated by Pneumatic Artificial Muscles","authors":"Wanju Kim, Geun Young Hong, E. V. Poorten, Youngjin Choi","doi":"10.1109/ur55393.2022.9826237","DOIUrl":"https://doi.org/10.1109/ur55393.2022.9826237","url":null,"abstract":"The shoulder complex is known as the highest degrees-of-freedom (DoFs) mechanism in the human body. It consists of the clavicle, scapula, and thorax allowing the human arm to perform a large range of motion. However, in the case of robotic systems, the shoulder complex is often kinematically simplified or substituted with a serial-chain mechanism due to the complexity of the musculoskeletal systems. As a matter of fact, the human shoulder makes use of the scapula movement to extend its range of motion. The pneumatic artificial muscles (PAMs) have been evaluated as the most similar actuators to the human muscles. When pressurized air is applied, PAMs swell and contract. PAMs are faster and more lightweight than other actuators because the power source is air. Also, PAMs are appealing as small-sized air compressors are becoming available. This paper presents a robotic shoulder complex actuated by PAMs. The PAMs are arranged in such a way as to mimic the musculoskeletal system of the shoulder complex. In order to allow a lightweight implementation of the robotic shoulder complex, ball joints and a deformable membrane are chosen instead of mechanical bearings. The effectiveness of the proposed mechanism was validated through simulation and experiments.","PeriodicalId":398742,"journal":{"name":"2022 19th International Conference on Ubiquitous Robots (UR)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134149591","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}
Kyeong-Jin Joo, Sanghyeon Bae, Arpan Ghosh, HyunJi Park, Tae-Yong Kuc
{"title":"Wall following navigation algorithm for a disinfecting robot","authors":"Kyeong-Jin Joo, Sanghyeon Bae, Arpan Ghosh, HyunJi Park, Tae-Yong Kuc","doi":"10.1109/ur55393.2022.9826258","DOIUrl":"https://doi.org/10.1109/ur55393.2022.9826258","url":null,"abstract":"This paper introduces the advanced wall following navigation using various distance sensors and navigation methods for a disinfecting robot. Based on distance data from the lidar sensor, we propose the virtual distance data so that a mobile robot can rotate reliably wall following navigation and robot can drive stably by preprocessing distance data and using the PID controller. In addition, we suggested a way for the mobile robot using active slams to return from start position to original position through pseudo code. Finally, through simulation and real-world experiments, we verified the stability of the mobile robot's wall following navigation in the simulation and real world.","PeriodicalId":398742,"journal":{"name":"2022 19th International Conference on Ubiquitous Robots (UR)","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130510459","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}
Yebin Park, Doyon Kim, Sanghyeon Park, Jisoo Na, Y. Choi, S. Ho, M. Lee, Ju Hee Kim, Ju Han Kim, Jisan Lee
{"title":"Development and Usability Test of IoT-based Mobile Applications for Persons with Mild Physical Disabilities and their Caregivers","authors":"Yebin Park, Doyon Kim, Sanghyeon Park, Jisoo Na, Y. Choi, S. Ho, M. Lee, Ju Hee Kim, Ju Han Kim, Jisan Lee","doi":"10.1109/ur55393.2022.9826273","DOIUrl":"https://doi.org/10.1109/ur55393.2022.9826273","url":null,"abstract":"With the COVID-19 outbreak, people with disabilities have faced difficulties in managing their health owing to restrictions on medical access and use. Therefore, this study aimed to develop an Internet of Things-based health information-sharing mobile app for the disabled and their caregivers and evaluate its usability in maintaining access to health care services. As a first step, 19 user needs were evaluated through the Daily Health app 1.0, developed for the disabled by the National Rehabilitation Center. Based on these needs, the study participants proceeded with mind maps and personas to derive the User Interface. Subsequently, the Daily Health 2.0 program was designed, and heuristic and usability evaluations were conducted by experts. The Daily Health app 2.0 beta version was developed by modifying the detailed functions and design of the app based on the results of experts' opinions. Finally, a usability evaluation was conducted for app users. The app developed in this study will contribute to the efficient health management of people with disabilities in non-face-to-face situations. When combined with robot technology, it is expected that more effective health management will be possible by replacing physical functions that are difficult for people with disabilities.","PeriodicalId":398742,"journal":{"name":"2022 19th International Conference on Ubiquitous Robots (UR)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134466517","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}
{"title":"Online Telemanipulation Framework on Humanoid for both Manipulation and Imitation","authors":"Daegyu Lim, Donghyeon Kim, Jaeheung Park","doi":"10.1109/ur55393.2022.9826256","DOIUrl":"https://doi.org/10.1109/ur55393.2022.9826256","url":null,"abstract":"Teleoperation of the robot is a promising technology that brings the robot to the real life because the complex decision-making algorithm can be replaced by the supervision of the human operator. To teleoperate the high dimensional humanoid robot intuitively like moving the operator’s own body, a motion retargeting algorithm is required to bridge the kinematics and dynamics differences between the robot and the operator. We propose the telemanipulation framework for the upper body of the humanoid only using 6 Virtual Reality (VR) trackers. The framework consists of the pose calibration procedure, the motion mapping method, and the multi-task control using Hierarchical Quadratic Programming (HQP). To validate the effect of the proposed method, three experiments are conducted including a user study for analysis of the hand position mapping, a dual-arm telemanipulation task in a real robot, and a comparison of the mapping methods in visual similarity.","PeriodicalId":398742,"journal":{"name":"2022 19th International Conference on Ubiquitous Robots (UR)","volume":"134 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132875234","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}
{"title":"Design of Violinist Robot’s Right Hand for Bow Hold with Inflatable Soft Mechanism*","authors":"K. Shibuya, Daiki Nishida","doi":"10.1109/ur55393.2022.9826267","DOIUrl":"https://doi.org/10.1109/ur55393.2022.9826267","url":null,"abstract":"This study presents a design for the right hand of an anthropomorphic violinist robot and its preliminary experimental results. Previously, we used an attachment for bow holding, in which the bow was firmly fixed to an aluminum plate by screws. However, because of the bow’s natural elasticity, the fixed bow bounces on the strings during the bowing, resulting in undesired oscillating sounds. Thus, we designed a new hand that included an inflatable soft mechanism for bow holding to prevent bouncing during bowing. The fabricated new prototype hand had three chambers covered with a membrane made of silicone rubber. By increasing the air pressure inside the chambers using a syringe, the silicone membrane above the chamber inflates, reducing the bow and sound oscillation owing to its damping ability. Based on the experimental results, we confirmed that it reduced the bow oscillation, which increased the quality of the produced sounds.","PeriodicalId":398742,"journal":{"name":"2022 19th International Conference on Ubiquitous Robots (UR)","volume":"108 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133340821","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}
{"title":"Natural Language Representation as Features for Place Recognition","authors":"A. Lee, H. Myung","doi":"10.1109/ur55393.2022.9826253","DOIUrl":"https://doi.org/10.1109/ur55393.2022.9826253","url":null,"abstract":"Visual information is rich in content, and robots require computer vision techniques to encode images into information to utilize the images. Robot vision transforms the image into descriptors using predefined patterns, whether defined by handcrafted or learned methods. However, the image descriptors are not explainable to human intelligence and limit human-robot interaction upon vision tasks. On the other hand, recent studies have discovered an efficient and expandable method of transforming an image into natural language forms. With visual transformers, the context in an image is translated into natural language representations. To create an image representation both understandable to humans and artificial intelligence, in this paper, we present a method of using the language-image model as natural representations for robotic place recognition tasks.","PeriodicalId":398742,"journal":{"name":"2022 19th International Conference on Ubiquitous Robots (UR)","volume":"303 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122800881","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}