{"title":"Camera Image Based Moving Platform Rotation Estimation for Quadrotor Landing","authors":"Joonyoung Jang, M. Macias, T. Bewley","doi":"10.1109/ICCRE57112.2023.10155600","DOIUrl":"https://doi.org/10.1109/ICCRE57112.2023.10155600","url":null,"abstract":"This paper considers the 3D rotation estimation of a moving platform from 2D images captured by a camera. Assume that a circular pattern marker is on the flight deck of a ship and quadrotor hovers on the center of a platform. The quadrotor has a camera that captures 2D images of markers and measures the distance between markers. The circular pattern of markers changes to an ellipse as the platform rotates. The ellipse equation can be derived from marker positions on an ellipse, and a platform's rotation sequence can be determined by leveraging geometry and trigonometric functions. As the platform's rotation can be estimated, the quadrotor is able to decide the timing that platform rotation is within the quadrotor's capacity to land safely. A simulation and a hardware test were performed to verify the estimation method, and the estimation error was discussed.","PeriodicalId":285164,"journal":{"name":"2023 8th International Conference on Control and Robotics Engineering (ICCRE)","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117293537","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}
Xiaohan Liu, Xiaoguang Gao, Xinxin Ru, Zidong Wang
{"title":"A Hybrid Bayesian Network Structure Learning Algorithm in Equivalence Class Space","authors":"Xiaohan Liu, Xiaoguang Gao, Xinxin Ru, Zidong Wang","doi":"10.1109/ICCRE57112.2023.10155599","DOIUrl":"https://doi.org/10.1109/ICCRE57112.2023.10155599","url":null,"abstract":"Greedy equivalence search (GES) is a well-known Bayesian network structure learning algorithm in equivalence class space (E-space). However, the extensive search space limits the efficiency of GES. In this paper, we propose a hybrid method to improve GES. We use mutual information to determine the strongly connected components (SCCs) graph. The SCCs graph is converted to E-space, and we take it as the initial graph of GES. The experiments reveal that our proposed approach significantly prunes the search space of GES and improves the efficiency of GES. Compared with the state-of-the-art methods, our method also has excellent accuracy.","PeriodicalId":285164,"journal":{"name":"2023 8th International Conference on Control and Robotics Engineering (ICCRE)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130233825","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}
C. Kowalski, S. Hellmers, Pascal Hinrichs, Andreas Hein
{"title":"Estimating the Maximum Pushing Force of Robot Manipulators to Physically Assist Caregivers","authors":"C. Kowalski, S. Hellmers, Pascal Hinrichs, Andreas Hein","doi":"10.1109/ICCRE57112.2023.10155588","DOIUrl":"https://doi.org/10.1109/ICCRE57112.2023.10155588","url":null,"abstract":"Robotic use cases where a robot must perform a force application can lead to overloaded joints due to excessive external joint forces. This results in performance degradation or even hardware damage in the worst case. Such cases are conceivable, for example, in physical human-robot interaction, where the collaborating robot should remain relatively small and light, but large loads have to be handled several times a day in collaboration with humans, e.g., in nursing care. For this purpose, we present an approach to estimate suitable configurations of a predetermined task with a start and goal robot pose to generate a robot manipulator path which possesses suitable conditions to leverage the manipulator's maximum pushing force potential. We also evaluate different metrics to show that robot base placement plays a major role when utilizing the robot manipulator's pushing capability for different tasks. Based on the robot's configuration and/or placement, the pushing force potential can differ by several magnitudes.","PeriodicalId":285164,"journal":{"name":"2023 8th International Conference on Control and Robotics Engineering (ICCRE)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126671916","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 End-to-End Pose Estimation Network for Multiscale Space Non-cooperative Objects","authors":"Yizhe Cao, Xianghong Cheng","doi":"10.1109/ICCRE57112.2023.10155575","DOIUrl":"https://doi.org/10.1109/ICCRE57112.2023.10155575","url":null,"abstract":"The pose estimation method of space non-cooperative objects based on deep learning is of great significance for further improving the on-orbit service level. However, at present, the pose estimation method of space non-cooperative objects based on deep learning still has some problems, such as relying on a priori 3D wireframe model, the network is not lightweight enough, and the precision of pose estimation for multiscale objects is not high. Therefore, this paper proposes an end-to-end pose estimation network for multiscale space non-cooperative objects. First, the lightweight EfficientNet-B0 is selected as the backbone, and feature pyramid network is introduced into EfficientNet-B0 to improve the pose estimation precision of the network for non-cooperative objects at middle and far distance. Then, a pose prediction head network including object loss function and pose loss function is designed. Finally, a lightweight and multiscale pose estimation network for space non-cooperative objects is established. The simulation results in SwissCube dataset show that the proposed pose estimation network has an average precision improvement of 3.6% compared with advanced methods. In addition, compared with other backbones, the “EfficientNet-B0+FPN” improves the average precision by 7.6% and is lighter.","PeriodicalId":285164,"journal":{"name":"2023 8th International Conference on Control and Robotics Engineering (ICCRE)","volume":"15 12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131938292","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 Digital Twin-Based Production-Maintenance Joint Scheduling Framework with Reinforcement Learning","authors":"Qinglong Hao, Yaqiong Lv","doi":"10.1109/ICCRE57112.2023.10155592","DOIUrl":"https://doi.org/10.1109/ICCRE57112.2023.10155592","url":null,"abstract":"The bridge of job scheduling and production equipment maintenance is usually the main joint scheduling task of a production system. However, the predicament of data acquisition in real systems leads to the difficulty of verifying the effectiveness of scheduling algorithms. In order to make joint scheduling work easier to implement in real production systems, this paper presents a joint scheduling framework for production systems based on digital twin and reinforcement learning. Firstly, the virtual mapping of physical production system, namely digital twin system, is established by using AnyLogic software and multi-agent modeling technology. Then, a joint scheduling agent is trained by Deep Q Network (DQN) algorithm and the virtual data generated by the twinning system. And the experimental results demonstrate the effectiveness of proposed framework in production systems with uncertainties, and it has higher production efficiency and lower machine failure frequency compared with a scheduling scheme based on common-used heuristic rules.","PeriodicalId":285164,"journal":{"name":"2023 8th International Conference on Control and Robotics Engineering (ICCRE)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124916740","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 Assessment of Predictive Control Strategies for Lateral Stability Control of 4-Wheels Drive Electrical Vehicle","authors":"A. Hassan, J. R. D. Frejo, J. Maestre","doi":"10.1109/ICCRE57112.2023.10155598","DOIUrl":"https://doi.org/10.1109/ICCRE57112.2023.10155598","url":null,"abstract":"Distributed electric drive vehicles offer convenience and maneuverability, but distributing torque to all four wheels to ensure stability under various driving conditions can be a challenge. This paper presents a novel control strategy for torque vector control using both linear and nonlinear model predictive control (MPC) as an optimal way to generate additional yaw moment, which improves handling stability while also maintaining accuracy in trajectory tracking. This strategy combines handling, lateral stability, and ride comfort. The MPC and nonlinear MPC controllers are designed to follow reference values and improve handling and lateral stability by calculating the total required torque while minimizing tracking errors in sideslip and yaw angle. The torque for each wheel is then determined based on yaw moment and longitudinal force using low-level torque vector synthesis. The optimized control sequence is then sent to the actuator. Simulations in different road conditions for pathfollowing scenarios were conducted in MATLAB/Simulink, and the proposed nonlinear MPC method was found to be superior to the ordinary MPC-based direct yaw method.","PeriodicalId":285164,"journal":{"name":"2023 8th International Conference on Control and Robotics Engineering (ICCRE)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131171654","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}
X. Li, Xiaoguang Gao, Chenfeng Wang, Qianglong Wang
{"title":"A Feature Structure Based Interpretability Evaluation Approach for Deep Learning","authors":"X. Li, Xiaoguang Gao, Chenfeng Wang, Qianglong Wang","doi":"10.1109/ICCRE57112.2023.10155583","DOIUrl":"https://doi.org/10.1109/ICCRE57112.2023.10155583","url":null,"abstract":"The shortcomings of deep learning in interpretability make it difficult to trust such complex black-box models in high-value decision problems. Nowadays, there is still no breakthrough in the research of deep learning interpretability, and people can not see the full picture inside the model. Meanwhile, there is no reliable and universal standard to evaluate the interpretability of deep learning model. Therefore, a deep learning interpretability evaluation method based on the feature structure of deep learning is proposed. Firstly, the trustworthiness evaluation is performed to confirm the robustness of the model with the help of Layer-wise relevance propagation. On this basis, the interpretability of the feature structure is measured based on the relevance between features and outputs. Experiments show that this method can effectively compare the interpretability of models.","PeriodicalId":285164,"journal":{"name":"2023 8th International Conference on Control and Robotics Engineering (ICCRE)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122113816","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":"Constrained Motion Planning for a Robotic Endoscope Holder Based on Hierarchical Quadratic Programming","authors":"Jacinto Colan, Ana Davila, Y. Hasegawa","doi":"10.1109/ICCRE57112.2023.10155579","DOIUrl":"https://doi.org/10.1109/ICCRE57112.2023.10155579","url":null,"abstract":"Minimally Invasive Surgeries (MIS) are challenging for surgeons due to the limited field of view and constrained range of motion imposed by narrow access ports. These challenges can be addressed by robot-assisted endoscope systems which provide precise and stabilized positioning, as well as constrained and smooth motion control of the endoscope. In this work, we propose an online hierarchical optimization framework for visual servoing control of the endoscope in MIS. The framework prioritizes maintaining a remote-center-of-motion (RCM) constraint to prevent tissue damage, while a visual tracking task is defined as a secondary task to enable autonomous tracking of visual features of interest. We validated our approach using a 6-DOF Denso VS050 manipulator and achieved optimization solving times under 0.4 ms and maximum RCM deviation of approximately 0.4 mm. Our results demonstrate the effectiveness of the proposed approach in addressing the constrained motion planning challenges of MIS, enabling precise and autonomous endoscope positioning and visual tracking.","PeriodicalId":285164,"journal":{"name":"2023 8th International Conference on Control and Robotics Engineering (ICCRE)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125398666","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 Bi-LSTM and AutoEncoder Based Framework for Multi-step Flight Trajectory Prediction","authors":"Han Wu, Yan Liang, Bin Zhou, Hao Sun","doi":"10.1109/ICCRE57112.2023.10155614","DOIUrl":"https://doi.org/10.1109/ICCRE57112.2023.10155614","url":null,"abstract":"Trajectory prediction (TP) is a key component in the route planning for civil aircraft. Most existing methods obtain multi-step TP via iterating the one-step TP model, which generally generates large cumulative error due to deviate from the original evolutionary pattern. To improve the situation, this paper proposes a multi-step TP framework with three modules: the Bi-directional Long Short-Term Memory Network (Bi-LSTM) based multi-step TP module, AutoEncoder based multi-step TP module, and voting fusion module. In the Bi-LSTM based multi-step TP method, to avoid the forgetting of evolutionary characteristics, the Bi-LSTM is designed to directly extract the mapping relationship between input of historical trajectory fragments and output of multi-step labels via data-driven method. In the AutoEncoder based multi-step TP module, the Bi-LSTM is deigned to learn mapping relationship between the input and core evolutionary features from output labels extracted via the encoder, and then the decoder is adopted to reconstruct predictions by outputs from Bi-LSTM. Third, the voting method was used to fuse the per-dimension predictions from the above two modules and further to refine multi-step predictions. The proposed multi-step TP framework is applied to real flight trajectory prediction of civil aircraft and outperforms multiple deep learning methods in the terms of RMSE and MAE.","PeriodicalId":285164,"journal":{"name":"2023 8th International Conference on Control and Robotics Engineering (ICCRE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130024908","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}
Roza Ranjbar, Javier G. Martin, J. Maestre, L. Etienne, E. Duviella, E. Camacho
{"title":"Mobile Robot Model Predictive Control Approach: Case Study of an Irrigation Canal","authors":"Roza Ranjbar, Javier G. Martin, J. Maestre, L. Etienne, E. Duviella, E. Camacho","doi":"10.1109/ICCRE57112.2023.10155573","DOIUrl":"https://doi.org/10.1109/ICCRE57112.2023.10155573","url":null,"abstract":"We propose a stochastic model predictive control (SMPC) in combination with a mobile robot to address a control problem for an irrigation canal with uncertain dynamics. We impose tightened constraints over the sampling time of the prediction horizon to make the controller calculate the best route for the robot to gather new measurements for the MPC controller. This MPC strategy with a robot in the loop is validated using a numerical model of an ASCE Test Canal as a case study.","PeriodicalId":285164,"journal":{"name":"2023 8th International Conference on Control and Robotics Engineering (ICCRE)","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128904575","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}