M. Say, E. Sybingco, A. Bandala, R. R. Vicerra, A. Chua
{"title":"2D Position Control of a UAV Using Fuzzy Logic Control","authors":"M. Say, E. Sybingco, A. Bandala, R. R. Vicerra, A. Chua","doi":"10.1109/IEEECONF49454.2021.9382784","DOIUrl":"https://doi.org/10.1109/IEEECONF49454.2021.9382784","url":null,"abstract":"Position control of UAV becomes important when it involves autonomous application such as agricultural applications. It allows the activity to be accurately and efficiently achieved as compared to manual control. In this paper, 2D position control of a quadcopter UAV is explored using fuzzy logic control. Fuzzy logic is studied as it is known for its human-like implementation as compared to other control systems. The fuzzy controllers used have three (3) membership functions each for the two (2) inputs, and one (1) output. It uses two (2) open-trapezoids, and one (1) triangle membership functions. Three (3) fuzzy controllers were used to control the $mathrm{E}_{d}mathrm{y}$. mid $mathfrak{g}$ values of the 2D model of the quadcopter UAV.","PeriodicalId":395378,"journal":{"name":"2021 IEEE/SICE International Symposium on System Integration (SII)","volume":"97 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120977271","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}
Yui Sudo, Katsutoshi Itoyama, Kenji Nishida, K. Nakadai
{"title":"Multi-channel Environmental Sound Segmentation utilizing Sound Source Localization and Separation U-Net","authors":"Yui Sudo, Katsutoshi Itoyama, Kenji Nishida, K. Nakadai","doi":"10.1109/IEEECONF49454.2021.9382730","DOIUrl":"https://doi.org/10.1109/IEEECONF49454.2021.9382730","url":null,"abstract":"This paper proposes a multi-channel environmental sound segmentation method. Environmental sound segmentation is an integrated method that deals with sound source localization, sound source separation and class identification. When multiple microphones are available, spatial features can be used to improve the separation accuracy of signals from different directions; however, conventional methods have two drawbacks: (a) Since sound source localization and sound source separation using spatial features and class identification using spectral features are trained in the same neural network, it overfits to the relationship between the direction of arrival and the class. (b) Although the permutation invariant training used in speech recognition could be extended, it is not practical for environmental sounds due to the maximum number of speakers limitation. This paper proposes multi-channel environmental sound segmentation method that combines U-Net which simultaneously performs sound source localization and sound source separation, and convolutional neural network which classifies the separated sounds. This method prevents overfitting to the relationship between the direction of arrival and the class. Simulation experiments using the created datasets including 75-class environmental sounds showed that the root mean squared error of the proposed method was lower than that of the conventional method.","PeriodicalId":395378,"journal":{"name":"2021 IEEE/SICE International Symposium on System Integration (SII)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122713079","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 Class in Unknown Object Segmentation Focusing on 3D Object Detection in Depth Image","authors":"Tatsuya Amemiya, T. Tasaki","doi":"10.1109/IEEECONF49454.2021.9382606","DOIUrl":"https://doi.org/10.1109/IEEECONF49454.2021.9382606","url":null,"abstract":"We aim to improve unknown object detection. We also deal with problem of designing the optimal class for semantic segmentation using depth image. There was a problem that unknown classes of obstacles were mistaken for road in semantic segmentation using depth image. Therefore, we focus on the superiority of 3D object detection in a depth image. The depth image is good at separating between horizontal plane and 3D objects. For this reason, we develop a method for changing the number of training classes from baseline 12 classes to new 3 classes (void, plane, 3D object) for segmentation, which are optimal to detect unknown object by using depth images. As a result, IoU of unknown obstacle improve +6.9point than baseline method.","PeriodicalId":395378,"journal":{"name":"2021 IEEE/SICE International Symposium on System Integration (SII)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121783838","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":"A Ground-Stair Walking Strategy of the Assistive Device Based on the RGB-D Camera","authors":"Shuai-Hong Yu, Bo-Rong Yang, Hee-Hyol Lee, Eiichirou Tanaka","doi":"10.1109/IEEECONF49454.2021.9382668","DOIUrl":"https://doi.org/10.1109/IEEECONF49454.2021.9382668","url":null,"abstract":"To ensure the safety of elderly people with a walking assistive device during the ground-stair transition, a system which could automatically transfer the walking mode between level walking and stair climbing was proposed. A road condition detection system with a RGB-D Camera and ultrasonic sensors was utilized in this system. The walking mode transformation is triggered by the detection of environment change. When far approach the stairs, the RGB-D Camera is responsible for the stair detection. The ultrasonic sensors are used in the near-approach of stairs and stair traversal. The ultrasonic sensors were mounted on the toe and heel to find the upwards and downwards stairs respectively. During stair traversal, if the ultrasonic sensors find the foot of the device is too closed to the edge of stairs, the target trajectory will be higher and the stride will be adjusted to prevent collisions. The Impedance control was introduced to let the device trace the predefined walking trajectories. In experiments, the device changed walking modes successfully when getting close the stairs. The results engaged in three subjects showed that the foot height was increased compared without assistance. Thus a huge potential can be expected that this system can solve the adaptability of walking assistive devices to different surroundings.","PeriodicalId":395378,"journal":{"name":"2021 IEEE/SICE International Symposium on System Integration (SII)","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127572682","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}
Yusuke Hayami, Weiwei Wan, Keisuke Koyama, Peihao Shi, J. Rojas, K. Harada
{"title":"Error Identification and Recovery in Robotic Snap Assembly","authors":"Yusuke Hayami, Weiwei Wan, Keisuke Koyama, Peihao Shi, J. Rojas, K. Harada","doi":"10.1109/IEEECONF49454.2021.9382694","DOIUrl":"https://doi.org/10.1109/IEEECONF49454.2021.9382694","url":null,"abstract":"Existing methods for predicting robotic snap joint assembly cannot predict failures before their occurrence. To address this limitation, this paper proposes a method for predicting error states before the occurence of error, thereby enabling timely recovery. Robotic snap joint assembly requires precise positioning; therefore, even a slight offset between parts can lead to assembly failure. To correctly predict error states, we apply functional principal component analysis (fPCA) to 6Dforce/torque profiles that are terminated before the occurence of an error. The error state is identified by applying a feature vector to a decision tree, wherein the support vector machine (SVM) is employed at each node. If the estimation accuracy is low, we perform additional probing to more correctly identify the error state. Finally, after identifying the error state, a robot performs the error recovery motion based on the identified error state. Through the experimental results of assembling plastic parts with four snap joints, we show that the error states can be correctly estimated and a robot can recover from the identified error state.","PeriodicalId":395378,"journal":{"name":"2021 IEEE/SICE International Symposium on System Integration (SII)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133630812","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":"Development of a Tower-type Cooking Robot","authors":"Masahiro Inagawa, T. Takei, Etsujiro Imanishi","doi":"10.1109/IEEECONF49454.2021.9382622","DOIUrl":"https://doi.org/10.1109/IEEECONF49454.2021.9382622","url":null,"abstract":"Cooking robots still have problems, such as poor the cooking performance, unsatisfactory methods for executing recipe instructions, and the large scale of the system. The objective of this study is to develop a cooking robot that can improve cooking performance while reducing the scale of the system. In this paper, we propose a tower-type cooking robot that functions as a single, small-scale cooking robot system by layering individual cooking mechanisms as units and stacking them together. In addition, we apply our recipe analysis algorithm to the proposed tower-type cooking robot to solve the problem of executing recipe instructions. To achieve our objective, we have developed a prototype of a tower-type cooking robot and an experiment. Since the improvement in cooking performance is dependent on each unit, we will have to improve their controls and mechanisms in the future.","PeriodicalId":395378,"journal":{"name":"2021 IEEE/SICE International Symposium on System Integration (SII)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131813689","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":"The application of virtual reality in programming of a manufacturing cell","authors":"H. Arnarson, B. Solvang, Beibei Shu","doi":"10.1109/IEEECONF49454.2021.9382657","DOIUrl":"https://doi.org/10.1109/IEEECONF49454.2021.9382657","url":null,"abstract":"Programming of industrial robots and manufacturing equipment in general requires product specific expertise towards all members in a manufacturing cell. Typically, old and new equipment is present in the same setup and several experts are often involved in the operation of these systems. In order to decrease the level of complexity in programming of manufacturing equipment this paper investigates the use of virtual reality (VR), to create a common programming platform for typical members in a manufacturing setup. A two-way digital twin is created where all robots can be programmed through the same human-machine-interface (HMI). This cyber-physical system (CPS) allows for simulations, testing and safety checks before all programs are converted and downloaded to the respective units.","PeriodicalId":395378,"journal":{"name":"2021 IEEE/SICE International Symposium on System Integration (SII)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134505567","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}
Tamon Miyake, Mohammed Al-Sada, Tingting Zhong, Wen Wang, S. Sugano
{"title":"Feasibility Evaluation of Mixed Reality Obstacles on Treadmill using HoloLens to Elicit Real Obstacle Negotiation","authors":"Tamon Miyake, Mohammed Al-Sada, Tingting Zhong, Wen Wang, S. Sugano","doi":"10.1109/IEEECONF49454.2021.9382780","DOIUrl":"https://doi.org/10.1109/IEEECONF49454.2021.9382780","url":null,"abstract":"An ability of visually-guided and anticipatory adjustments of locomotion corresponding to upcoming obstacles is important to avoid trip-induced fall. For establishing gait training based on visually-guided and anticipatory adjustments, techniques reproducing realistic training environment are essential. Although some previous works proposed virtual obstacles using mixed reality, the feasibility of virtual obstacles encouraging people to perform realistic obstacle negotiation on a treadmill, where gait training is usually conducted, is still unclear. In this study, we investigated toe heights when stepping over the obstacle in both cases of virtual and real obstacles during walking on the treadmill. Five participants stepped over two types of mixed reality boxes and real boxes, with box placements close and distant from them. The results generally indicate that the toe heights of the leading foot tended to be similar between mixed reality and real obstacles in cases where the obstacle was located distant from participants, a condition that enabled participants to predict when obstacles approached. However, the toe heights of the trailing foot tended to be lower when stepping over the MR obstacles than the real obstacles. We discuss the feasibility and shortcomings of the future use of MR HMDs as replacement for traditional gait training setup.","PeriodicalId":395378,"journal":{"name":"2021 IEEE/SICE International Symposium on System Integration (SII)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132561042","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":"An unsupervised auditory scene analysis system using incremental low-dimensional embedding","authors":"K. Shinzato, Ryosuke Kojima","doi":"10.1109/IEEECONF49454.2021.9382632","DOIUrl":"https://doi.org/10.1109/IEEECONF49454.2021.9382632","url":null,"abstract":"This paper addresses the low-dimensional embedding of sounds towards unsupervised auditory scene analysis. Summarizing long-time recordings by mapping them into lowdimensional space is an essential task in long-time environmental monitoring. In this paper, we propose a novel low-dimensional embedding system using an incremental embedding algorithm. To analyze long-time recordings, we design an incremental system consisting of recording, feature extraction, low-dimensional embedding, and visualization. Recently, many low-dimensional embedding methods for acoustic scenes have been studied; however, applicability of these methods to the long-time recording is not adequately evaluated. Thus, this paper describes the construction of the scene analysis system and evaluates the performance of this system. In this paper, we especially focus on two important viewpoints in long-time monitoring: incremental methods and effects of noisy data. To realize an incremental system, we use Self-Organizing Nebulous Growths (SONG), which can incrementally construct a low-dimensional embedding space. Also, in our experiments, we apply our system to bird song analysis under noise conditions. By the preliminary experiments using benchmark datasets, we discover noise sensitivity of our system and applicability to environmental monitoring.","PeriodicalId":395378,"journal":{"name":"2021 IEEE/SICE International Symposium on System Integration (SII)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121928454","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":"Transporting a heavy object on a frictional floor by a mobile manipulator based on adaptive MPC framework","authors":"Yunzhuo Wang, Hitoshi Kusano, T. Sugihara","doi":"10.1109/IEEECONF49454.2021.9382761","DOIUrl":"https://doi.org/10.1109/IEEECONF49454.2021.9382761","url":null,"abstract":"This work tackles a task to transport an object by a mobile manipulator to the designated location. Heavy objects that the robot cannot lift up and needs to push or drag are targeted. It is assumed that the mass property of the object and the frictional characteristics between the object and the floor are unknown. In addition, a caging strategy of loosely holding the object is employed in order to reduce the required motor torques. Thus, a challenge is how to deal with uncertainties accompanied with interactions between the robot, the object and the ground. A control system that stands on a combination of an instantaneous equilibration model of a planar frictional movement and the adaptive model predictive control (MPC) to modify the model parameters during the operation is proposed and implemented on a mobile manipulator. Efficacy of the proposed method was verified through experiments, in which even objects that are equipped with casters and thus have largely different characteristics from the supposed friction model were successfully moved to the desired destination.","PeriodicalId":395378,"journal":{"name":"2021 IEEE/SICE International Symposium on System Integration (SII)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116737336","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}