{"title":"A robust design of a prosthetic finger and its dynamic analysis","authors":"S. Kashef, M. Davari, A. Akbarzadeh","doi":"10.1109/ICROM.2018.8657605","DOIUrl":"https://doi.org/10.1109/ICROM.2018.8657605","url":null,"abstract":"Dynamic responses of under-actuated prosthetic hands determine the performance and operation safety of these systems. In order to control the gripping force and to improve the grasping characteristics of the hand, it is necessary to analyze the dynamic responses of the system. This paper presents a forward dynamic model of a linkage being used in most of commercial prosthetic hands. The finger mechanism is composed of a four-bar linkage with one degree of freedom. Constrained Lagrange method is used to derive the dynamic equations of the finger. The three joint angles of the four-bar linkage are selected as the generalized coordinates of the system while the motor torque is chosen as the input. Since the mechanism has one degree of freedom, two kinematic constraints are also considered. The results of the dynamic equations of motion are compared to the responses of a software model of the finger, developed in a dynamic simulation software. The good agreement between the results verifies the dynamic model developed for the prosthetic finger.","PeriodicalId":383818,"journal":{"name":"2018 6th RSI International Conference on Robotics and Mechatronics (IcRoM)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117019225","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":"Trajectory Tracking Control of Underactuated Autonomous Marine Surface Vessels with Guaranteed Prescribed Performance","authors":"Omid Elhaki, K. Shojaei","doi":"10.1109/ICROM.2018.8657512","DOIUrl":"https://doi.org/10.1109/ICROM.2018.8657512","url":null,"abstract":"This work proposes a neural network-based adaptive robust controller of tracking for autonomous underactuated marine ships with a guaranteed prescribed response. By prescribed response, we denote that the errors of tracking evolve strictly inside a reducing function of time to satisfy some prescribed performance specifications. The stability of the proposed system is studied by the Lyapunov method. Eventually, simulations are carried out to show the advantageous of the proposed control method.","PeriodicalId":383818,"journal":{"name":"2018 6th RSI International Conference on Robotics and Mechatronics (IcRoM)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120980050","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}
Amirreza Kebritchi, Pedram Hosseiniakram, Sara Havashinezhadian, M. Rostami
{"title":"Design and Development of an Omnidirectional Mobile Manipulator for Indoor Environment","authors":"Amirreza Kebritchi, Pedram Hosseiniakram, Sara Havashinezhadian, M. Rostami","doi":"10.1109/ICROM.2018.8657537","DOIUrl":"https://doi.org/10.1109/ICROM.2018.8657537","url":null,"abstract":"In this paper, a mobile manipulator is developed and studied in order to manipulate the complicated objects and navigate in an indoor environment. The arm consists of an actuator that makes the first linkage to move in two degrees of freedom in the first step of the task. In the next mode of the task, another actuator causes the second linkage to move in the third degree of freedom. In addition, the arm contains a gripper that grabs a variety of objects such as a screw. Therefore, the robotic arm can manipulate objects, and the mobile robot connected to the arm can detect, classify and track targets in its surrounding. Results carried out that the manufactured robot is able to manipulate and navigate in an indoor environment. The designed autonomous robot in this study can be used as a logistical support in the factories by delivering parts from any random origin to any random destination. In this study, the innovative square platform enables the robot to avoid obstacles and navigate through the environment more efficiently.","PeriodicalId":383818,"journal":{"name":"2018 6th RSI International Conference on Robotics and Mechatronics (IcRoM)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134107190","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":"Learning of 2 DOF robotic arm using integrated architecture of neural network and Spike Timing Dependent Plasticity","authors":"V. Azimirad, M. T. Ramezanlou, P. Shahabi","doi":"10.1109/ICROM.2018.8657598","DOIUrl":"https://doi.org/10.1109/ICROM.2018.8657598","url":null,"abstract":"In this paper, an integrated architecture of spiking neural network is used for learning of 2 DOF robotic arm. Brain architecture is consisting of 6 different areas that have different tasks. Two sensors are used to detect the target position and send the signals to sensory neurons. As an integrated architecture, all of the sensory neurons are connected to all motor neurons at the beginning of the process. The neural network is trained to learn a specific task using spike timing-dependent plasticity. Simultaneous sensing of target and movement of robot toward target result in unsupervised learning which is useful for learning of robots in unknown environments. To remove the effects of random inputs, the experiment is repeated six times. Through the learning process, the synaptic weights are changed. The connection between left sensory neurons and Flexor motor neurons also the connection between right sensory neurons and Extensor motor neurons are increased while other connections are weakened. The results show that the spiking neural network is effective in controlling the robot's motion.","PeriodicalId":383818,"journal":{"name":"2018 6th RSI International Conference on Robotics and Mechatronics (IcRoM)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133356073","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":"Improving energy consumption in Exoped® Lower-limb Exoskeleton by means of Functional Electrical Stimulation","authors":"S. Hosseinpour, S. Ozgoli, V. Nekoukar","doi":"10.1109/ICROM.2018.8657585","DOIUrl":"https://doi.org/10.1109/ICROM.2018.8657585","url":null,"abstract":"Walking and standing are the two fundamental problems in patients with spinal cord injury. Gait disorders in neurologically disabled people can be treated by various techniques available today. Exoskeleton robots and functional electrical stimulation (FES) are the two important solutions in this field. However, each of them has its own drawback. The patient using an exoskeleton doesn't participate in walking, in addition, battery consumption is a limiting problem. On the other hand, the muscles fatigue and complexity of joints control should be noticed in functional electrical stimulation. In this paper, in order to solve these problems, combining exoskeleton and FES system is considered. The Exoped® exoskeleton robot which consists of four motors in knee and hip joints is used for implementation of proposed method. For FES quadriceps and hamstring muscles are assumed actuate the knee joint during swing phase. The muscle stimulation is adjusted in a way that the interaction torque between the robot joint and the patient is minimized, i.e., the FES torque assists the robot. In order to show that the approach is efficient, it is implemented on Exoped® by healthy person. Experimental data and simulation results indicate that the proposed method reduces the torque and power output required for knee motors of the exoskeleton compared to walking without FES.","PeriodicalId":383818,"journal":{"name":"2018 6th RSI International Conference on Robotics and Mechatronics (IcRoM)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131962175","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}
Rasoul Sadeghian, P. Sedigh, Parastoo Azizinezhad, Shahrooz Shahin, M. T. Masouleh
{"title":"Design, Development and Control of a Three Flexible-Fingers Gripper Based On Hand Gesture","authors":"Rasoul Sadeghian, P. Sedigh, Parastoo Azizinezhad, Shahrooz Shahin, M. T. Masouleh","doi":"10.1109/ICROM.2018.8657517","DOIUrl":"https://doi.org/10.1109/ICROM.2018.8657517","url":null,"abstract":"In this paper, the process of design, and construction of a flexible gripper with three fingers is presented. The fingers of the proposed gripper are fabricated using a 3D printing device. The gripper is controlled remotely by an autonomous glove which is designed to help people with disability. In order to ameliorate the movement accuracy of the gripper a Fuzzy-PID controller is implemented on the system. The result of experimental tests demonstrate a decrease of the gripper movement error to less than 2 degrees in average. An ultrasonic sensor is set on the gripper’s body to improve the grasping process by detecting the distance of the object to the gripper. The fabricated fingers are flexible and provides the ability of grasping the objects with irregular shapes. The experimental test approves the significant performance of the gripper in term of grasping complex shape objects.","PeriodicalId":383818,"journal":{"name":"2018 6th RSI International Conference on Robotics and Mechatronics (IcRoM)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122544390","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":"Distributed predictive control for formation of networked mobile robots","authors":"Farshad Rahimi, R. M. Esfanjani","doi":"10.1109/ICROM.2018.8657625","DOIUrl":"https://doi.org/10.1109/ICROM.2018.8657625","url":null,"abstract":"This paper presents a novel distributed model predictive controller (MPC) to reach formation in a team of mobile robots which are connected via data delaying communication network. The parameters of the control laws are determined online by a distributed optimization algorithm in which each robot searches the optimum of a global cost function using its local information and delayed data received from the neighbors. Simulation results are given to illustrate the efficiency of the proposed approach.","PeriodicalId":383818,"journal":{"name":"2018 6th RSI International Conference on Robotics and Mechatronics (IcRoM)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116741541","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 & Characterization of a Bio-Inspired 3-DOF Tactile/Force Sensor for Human-Robot Interaction Purposes","authors":"Amin Hamed, M. T. Masouleh, A. Kalhor","doi":"10.1109/ICROM.2018.8657597","DOIUrl":"https://doi.org/10.1109/ICROM.2018.8657597","url":null,"abstract":"This paper presents the design, fabrication and validation of HexaTactile, a soft tactile sensor array based on six barometers, each of which is covered by a silicone layer in the form of an incomplete pyramid. HexaTactile consists of six soft and highly sensitive tactile modules which are placed on six sides of a cube to allow simultaneous measurement of the force in the positive and negative directions along the x, y and z axes. Some of the advantages of this sensor can be regarded as its high precision, excellent linearity (coefficient of determination r2=0.99), low cost and low noise. The accuracy of the sensor is 0.01 N, within a range of 4 N and therefore HexaTactile can be suitably attached to a robot end-effector for safe human-robot interaction applications.","PeriodicalId":383818,"journal":{"name":"2018 6th RSI International Conference on Robotics and Mechatronics (IcRoM)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129806128","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 Tunable Helmholtz Resonator for Electromagnetic Energy Harvesting","authors":"M. A. Askari Farsangi, H. Zohoor","doi":"10.1109/ICROM.2018.8657492","DOIUrl":"https://doi.org/10.1109/ICROM.2018.8657492","url":null,"abstract":"In this paper, acoustic energy harvesting using a tunable Helmholtz Resonator (HR) is investigated. The frequency of resonator can be changed by varying the radial force in a membrane which is used in one of its face. Applying acoustic pressure, vibrates the air inside HR neck and therefore changes pressure in HR chamber which results in membrane vibration. Attached magnet to the membrane will vibrate and its relative motion to a fixed coil generates voltage on the basis of Faraday’s law of induction. Modeling approach is developed considering equivalent nonlinear membrane stiffness and coupling of electrical circuit and mechanical device. At the end, system behavior is studied numerically and effects of several factors such as radial force, electrical resistance and geometric parameters has been taken into account.","PeriodicalId":383818,"journal":{"name":"2018 6th RSI International Conference on Robotics and Mechatronics (IcRoM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121825941","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":"Model Free Control of Electrically Driven Manipulator by Optimized Linear Extended State Observer, based on Voltage Control Strategy","authors":"A. Saleki, M. Fateh","doi":"10.1109/ICROM.2018.8657617","DOIUrl":"https://doi.org/10.1109/ICROM.2018.8657617","url":null,"abstract":"This paper presents a new approach for robot manipulator control, based on voltage control strategy. The novelty of this paper is providing a model-free control system with optimized parameters. In this approach, it is not necessary to have dynamic equations and parameters of robot and its motors. Uncertainties and disturbances of each joint of the robot manipulator is estimated by a Linear Extended State Observer (LESO), and the convergence of estimated variables to actual variables has been analyzed. After estimating the disturbances, a proportional controller is used to tracking the reference trajectory. LESO and controller design parameters have been determined using the PSO algorithm. Simulation results depicted that the proposed model-free controller has a satisfactory performance for reducing the position tracking error.","PeriodicalId":383818,"journal":{"name":"2018 6th RSI International Conference on Robotics and Mechatronics (IcRoM)","volume":"164 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125945368","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}