{"title":"High-speed multiple spatial band-pass filtering using a resistive network","authors":"S. Yasukawa, H. Okuno, S. Kameda, T. Yagi","doi":"10.1109/ICMA.2013.6618101","DOIUrl":"https://doi.org/10.1109/ICMA.2013.6618101","url":null,"abstract":"In this study, we developed a vision system that separates an image into a set of spatial frequency bands using multiple spatial filters during each single frame sampling period of 20 ms. The vision system comprises active pixel sensors (APS), two sample and hold (S/H) circuits, an analog resistive network, and a field-programmable gate array (FPGA). The resistive network facilitates instantaneous spatial filtering where its spatial property depends on its resistance. We implemented a digital circuit in the FPGA, which controls resistance of the resistive network and the timing when reading out spatial-filtered images in a single frame. We examined the performance of this system by presenting a set of test images. The system output three spatial band-pass filtered images at 50 fps.","PeriodicalId":335884,"journal":{"name":"2013 IEEE International Conference on Mechatronics and Automation","volume":"104 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132420253","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":"Experimental validation of load estimation method from the back-EMF for amplitude control method of linear resonant actuator","authors":"Y. Asai, K. Hirata, T. Ota","doi":"10.1109/ICMA.2013.6617959","DOIUrl":"https://doi.org/10.1109/ICMA.2013.6617959","url":null,"abstract":"This paper proposes a feedback control method for a Linear Resonant Actuator (LRA), in which an external load estimated from two signals of the back-EMF is used as the target voltage in PID control. From the estimated load, it becomes possible to obtain an arbitrary amplitude of the mover. The effectiveness of this method was verified through FEM analysis and measurement.","PeriodicalId":335884,"journal":{"name":"2013 IEEE International Conference on Mechatronics and Automation","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130433309","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":"Neural network based adaptive stability control scheme for teleoperation under asymmetric time delays","authors":"Yong Liu, Xulong Zhang, Wusheng Chou","doi":"10.1109/ICMA.2013.6618025","DOIUrl":"https://doi.org/10.1109/ICMA.2013.6618025","url":null,"abstract":"In this paper, a novel neural network based control architecture is applied to the teleoperation system with asymmetric time delays. In the proposed method, two augmented error reference signals have been introduced to minimize the negative effects of time delays when interacting with slave environment. Generally speaking, the teleoperation system are subject to different types of uncertainties and unmodeled dynamics. In the proposed controller, the neural network estimates the nonlinear terms of the system and then the linearized system can be obtained. Using the concept of “adaptive estimation”, the unmodeled dynamic uncertainties are estimated with adaptive robust term to enhance the robustness of the controller. By the Lyapunov stability theory, we present the asymptotically stability condition of the closed-loop system which guarantees the uniformly ultimately bound of the neural network weights. Finally, experiments are simulated to validate the performance of the control method.","PeriodicalId":335884,"journal":{"name":"2013 IEEE International Conference on Mechatronics and Automation","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131855167","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 method of decreasing transmission time of visual feedback for the Internet-based surgical training system","authors":"Jin Guo, Shuxiang Guo, Nan Xiao","doi":"10.1109/ICMA.2013.6618037","DOIUrl":"https://doi.org/10.1109/ICMA.2013.6618037","url":null,"abstract":"The Internet-based robotic catheter operating system for Vascular Interventional Surgery (VIS) provides a promising way to enhance emergency medical care and to train novice doctors to learn basic wire or catheter handling skills across the whole world. However, variable and unpredictable transmission time delay of visual feedback is always associated with the significant deterioration of the operability and may result in damage to organs in actual surgery. In this paper, we proposed a new method to reduce transmission time of visual feedback effectively based on image processing technique. At surgical site, the shape of active catheter is tracked in real time to provide coordinates of catheter in real vascular structure. And at operation site, position of catheter is reconstructed in 2-dimensional and 3-dimensional blood vessel model which has the same geometrical structure with that at surgical site according to the coordinate values received from surgical site. Transmission time of visual feedback is therefore decreased due to significant reduction of data volume. Finally, we present results from a visually guided tele-operative experiment where show that the proposed method makes a significant performance improvement for tele-operation with delays corresponding to inter-country distances.","PeriodicalId":335884,"journal":{"name":"2013 IEEE International Conference on Mechatronics and Automation","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132961342","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":"Dynamic performance analysis of a robotic catheter manipulating system","authors":"Xu Ma, Shuxiang Guo","doi":"10.1109/ICMA.2013.6618015","DOIUrl":"https://doi.org/10.1109/ICMA.2013.6618015","url":null,"abstract":"Manual operation of steerable catheter is inaccurate in minimally invasive surgery, requires dexterous and efficient manipulation for the catheter and exposes the surgeons to intense radiation. A novel robotic catheter manipulating system has been developed to reduce the performance error and irradiation to surgeons. In addition, unlike the conventional technique which requires surgeons to manipulate the catheter using their hands, remote systems always have removed surgeons' hands and replaced from joystick and handle, thus withdrawing their unique skills and experience. The novel robotic catheter manipulating system proposed that surgeon could manipulate the catheter that is same to the surgeries' often use. The surgeon console (the master side) used to measure the axial and radial motions of input catheter and the catheter manipulator (the slave side) used to implement to patients. Performance evaluation of system was conducted to test both the dynamic and static performance of manipulation. The experimental results showed the system has the ability to be a training system for surgeons and also facilitate the interventional surgery in the future.","PeriodicalId":335884,"journal":{"name":"2013 IEEE International Conference on Mechatronics and Automation","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129401084","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 cross structured light sensor for weld line detection on wall-climbing robot","authors":"Liguo Zhang, Wei Ke, Zhenjun Han, Jianbin Jiao","doi":"10.1109/ICMA.2013.6618081","DOIUrl":"https://doi.org/10.1109/ICMA.2013.6618081","url":null,"abstract":"In this paper, we design a cross structured light (CSL) sensor for weld line detection on wall-climbing robot platform. The detection and measurement results can navigate robot to move along weld lines. CSL sensor consists of a CSL projector and a camera. The captured cross laser stripe represents the convexities of horizontal and vertical weld lines simultaneously. The sensor is calibrated by a planar target. The experiment results show that the sensor can accurately obtain 3D information of weld line with very low measurement errors.","PeriodicalId":335884,"journal":{"name":"2013 IEEE International Conference on Mechatronics and Automation","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132716783","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":"Modeling and control of a novel Hybrid Ground Aerial Robot","authors":"M. Elsamanty, M. Fanni, A. Ramadan, A. Abo-Ismail","doi":"10.1109/ICMA.2013.6618146","DOIUrl":"https://doi.org/10.1109/ICMA.2013.6618146","url":null,"abstract":"This paper presents the dynamic modeling and control simulation of a novel robot that combines flying motion and on ground motion into an integrated single robot. The ground motion is based on four wheels configuration that provides more stability. The flying motion is depending on the flying mechanism of quadrotor system. Smart transformation mechanism is developed to switch the robot from the ground motion configuration to the flying motion configuration and vice versa without adding any additional actuators. A manipulator with 3 DOF is added to handle an object during the ground motion and it is useful to hold this object during the flying motion. A CAD model is developed using SOLIDWORKS. The dynamic model of this robot is derived to achieve the eccentricity of the payload, the weight of the eccentric manipulator and managing the variation of the payload in the dynamic model. The derived robot dynamics are highly nonlinear. A controller is designed based on feedback linearization technique to stabilize the robot attitude and altitude. Controlling the horizontal movements' nonholonomic constraints is used to generate the desired trajectories of robot attitudes. Another dynamic model and controller have been established for the transformation mechanism. Finally, the simulation results using MATLAB/SIMULINK show that the controller successfully vanish the eccentric effect and stabilize the robot attitude.","PeriodicalId":335884,"journal":{"name":"2013 IEEE International Conference on Mechatronics and Automation","volume":"44 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128877600","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":"Robust μ control and repetitive control for dynamic tracking control of a pneumatic actuating table","authors":"Sheng-Chih Hsu, Chi-Ying Lin","doi":"10.1109/ICMA.2013.6617937","DOIUrl":"https://doi.org/10.1109/ICMA.2013.6617937","url":null,"abstract":"This paper presents a robust μ control and repetitive control method for dynamic tracking control of a pneumatic actuating table. The applied hybrid control structure contains two feedback controllers. The first one is a repetitive controller used to improve periodic tracking performance, and the second one is a μ controller used to handle the dominant nonlinearities and uncertainties in pneumatic servo systems. Different from a previously-presented robust repetitive control method that solves the repetitive controller through a μ design process, this study designs the above two controllers independently and takes the advantage of the synergetic effect that results in a more performance-aggressive design alternative. Experimental results on tracking dynamic motion profiles at perturbed operating regions for a heavy duty pneumatic actuating table demonstrate the effectiveness of the proposed method.","PeriodicalId":335884,"journal":{"name":"2013 IEEE International Conference on Mechatronics and Automation","volume":"2016 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127462061","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":"Advanced control for magnetostrictive actuated nano-stage","authors":"Xinkai Chen","doi":"10.1109/ICMA.2013.6618010","DOIUrl":"https://doi.org/10.1109/ICMA.2013.6618010","url":null,"abstract":"The nano-stage driven by magnetostrictive actuator is composed of a magnetostrictive actuator and a positioning mechanism (PM). Due to the existence of hysteretic nonlinearity in the magnetostrictive actuator and the friction behavior in the PM, the accurate position control of the nano-stage is a challenging task. This paper discusses the high precision control for the magnetostrictive nano-stage, where the hysteresis is described by Preisach model. The proposed control law ensures the zero output tracking of the controlled stage. Experimental results show the effectiveness of the proposed method.","PeriodicalId":335884,"journal":{"name":"2013 IEEE International Conference on Mechatronics and Automation","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115463017","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 active-caster drive system for motorizing a manual wheelchair","authors":"Yu Munakata, Aki Tanaka, M. Wada","doi":"10.1109/ICMA.2013.6618078","DOIUrl":"https://doi.org/10.1109/ICMA.2013.6618078","url":null,"abstract":"An external motorize system with an active-caster is presented in this paper. The external motorize system is for driving a manual (hand propelled) wheelchair by electric power by mounting the external device with electric motors, a set of batteries, a joystick and motor controllers on a manual wheelchair. In spite of a single drive wheel, 2DOF of the wheelchair with an active-caster drive system can be controlled independently without any constraint, such as the orientation of the drive wheel which is well known as a non-holonomic constraint. A kinematic model of the wheelchair and that with an active-caster drive system are analyzed and a control method for propelling the wheelchair by using a 2DOF joystick is derived. Based on the kinematic model, a prototype mechanism of the active-caster is designed and mounted on a manual wheelchair to realize the motorized manual wheelchair. In the experiments, the independent 2DOF motion can be achieved by the control of the active-caster in which the wheelchair shows successful translation and rotation motions which includes flip motion of the active-caster mechanism.","PeriodicalId":335884,"journal":{"name":"2013 IEEE International Conference on Mechatronics and Automation","volume":"423 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124213836","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}