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Relative Position and Posture Detection of Hydraulic Support Based on Particle Swarm Optimization

Kuidong Gao, Wenbo Xu, Hongyang Zhang, Yi Zhang, Qingliang Zeng, Liqing Sun
2020 IEEE Access  
To effectively monitor the hydraulic support, and thereby improve the efficiency of coal mining, we propose a new method to detect the relative position and posture of the hydraulic support.  ...  The research on the relative position and posture detection of hydraulic support provides a reliable method to monitor the support working status.  ...  for the relative position and posture detection of hydraulic support.  ... 
doi:10.1109/access.2020.3035576 fatcat:7q6c4dmnvjbi5dodg62g4eupgu

Virtual straightening of scraper conveyor based on the position and attitude solution of industrial robot model

Suhua Li, Jiacheng Xie, Fang Ren, Xin Zhang, Xuewen Wang, Binbin Wang
2021 International Journal of Coal Science & Technology  
AbstractThe movement of the floating connecting mechanism between a hydraulic support and scraper conveyor is space movement; thus, when the hydraulic support pushes the scraper conveyor, there is an error  ...  Therefore, the movement law of the floating connecting mechanism between the hydraulic support and scraper conveyor is analyzed and programmed into the Unity3D to realize accurate pushing of the scraper  ...  First, the hydraulic support pushes the scraper conveyor, and the hydraulic support advances support according to elongation of the obtained hydraulic cylinder according to the position and posture of  ... 
doi:10.1007/s40789-020-00389-y fatcat:m6p442q57bcx7e2bqjn7lkhqae

Development of an Attitude Adjustment Crawler Chassis for Combine Harvester and Experiment of Adaptive Leveling System

Jinpeng Hu, Jiahui Pan, Buwang Dai, Xiaoyu Chai, Yixin Sun, Lizhang Xu
2022 Agronomy  
The experiment showed that the leveling system could achieve automatic leveling with an accuracy of ±0.4° and could provide technical support for the development of crawler vehicles.  ...  The design relies on the combination of the attitude detection of the leveling system and adjustment calculation of driving hydraulic cylinders according to the established mathematical models.  ...  On the basis of the designed attitude adjustment range, the sequence of posture adjustment for the adaptive leveling method is shown in Figure 7 .  ... 
doi:10.3390/agronomy12030717 fatcat:6y3rb3ujfvfr3n66go5hunz3ua


Michael McGrath, Katherine C. Davies, Piotr Laszczak, Beata Rek, Joe McCarthy, Saeed Zahedi, David Moser
2020 Canadian Prosthetics & Orthotics Journal  
For the bilateral participant, only the MPF positioned the GRF vector anterior to the knees, reducing the demand on the residual joints to maintain posture.  ...  The influence of hydraulic ankles and microprocessor-control on the biomechanics of trans-tibial amputees during quiet standing on a 5° slope.  ...  ACKNOWLEDGEMENTS The authors wish to thank the participants for taking the time to volunteer for this study.  ... 
doi:10.33137/cpoj.v2i2.33517 fatcat:x3a6dotp2nar3i2iveqzd2voue

Research on the Stationarity of Hexapod Robot Posture Adjustment

Lei Zhang, Fucai Wang, Zenghui Gao, Shuangshuang Gao, Chenghang Li
2020 Sensors  
Therefore, when the position of the foot end of the support leg is unchanged, a unique set of joint angles can be obtained with the change of body posture at a certain moment.  ...  The simulation and prototype experiments verify and analyze the proposed method.  ...  Therefore, it is necessary to plan a new footing point for the follower leg and move it to a new position following the posture adjustment cycle, so as to ensure that the leg will not affect the posture  ... 
doi:10.3390/s20102859 pmid:32443508 pmcid:PMC7287624 fatcat:4smxxlz5lja6fhnhesef6hhkcu

Autonomous underwater vehicle docking system based on wired transmission

Jingqian Guo, Rong Zheng, Xiaolei Yu, Aobo Wei, Bo Yang
2018 2018 WRC Symposium on Advanced Robotics and Automation (WRC SARA)  
The whole project of the docking system was based on acoustic positioning and hydraulic driving.  ...  This paper presents the design, development, trialing and results of the docking system for 534.4 AUV.  ...  ACKNOWLEDGMENT We particularly like to thank Rong Zheng teacher and all Heavy-weight AUV team members who participated in this trial.  ... 
doi:10.1109/wrc-sara.2018.8584153 fatcat:dmgywm6jfrga3iipd4pu3au4fa

Motion Kinematics Analysis of a Horse Inspired Terrain-adaptive Unmanned Vehicle with Four Hydraulic swing arms

Xuanyi Zhou, Jilin He, Qinghua He, Changji Ren, Bhushan, Miaolei He
2020 IEEE Access  
When the ATV detected the obstacle, hydraulic swing arms changes to the initial posture for obstacle surmounting at 1.3s.  ...  When the obstacle is detected, the swing arms change to the initial posture for obstacle surmounting.  ... 
doi:10.1109/access.2020.3033148 fatcat:xovzqypo65aclo6br6u55pemzy

Heuristic EPnP-Based Pose Estimation for Underground Machine Tracking

Lingling Su, Xianhua Zheng, Yongshi Song, Ge Liu, Nana Chen, Shang Feng, Lin Zhang
2022 Symmetry  
Pose estimation is one of the most complicated and compromising problems for underground mining machine tracking, and it is particularly important for hydraulic support autonomous following mining machine  ...  The optimized algorithm is integrated into the AFM policy-making system to estimate the relative pose (R-Pose) estimation between hydraulic support and the mining machine's shearer drum.  ...  Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/sym14020385 fatcat:gf3olnpsprfkxb2ng2viy7fy4u

Microprocessor knees with 'standing support' and articulating, hydraulic ankles improve balance control and inter-limb loading during quiet standing

Michael McGrath, Piotr Laszczak, Saeed Zahedi, David Moser
2018 Journal of Rehabilitation and Assistive Technologies Engineering  
The combination of hydraulic ankle and knee standing support technologies produced outcomes closest to normal biomechanics.  ...  Four prosthetic conditions were tested; microprocessor knee 'standing support' mode activated (ON) and deactivated (OFF), combined with a rigidly attached foot (RA) and with an articulating, hydraulic  ...  Acknowledgements The Authors would like to thank the senior prosthetist, Joe McCarthy, and the assistant experimenter, Dr Nadine Stech, for their help during data collection.  ... 
doi:10.1177/2055668318795396 pmid:31191952 pmcid:PMC6453061 fatcat:su6skft5dfejnhu36xffsvi4ui


2021 Biomedical Engineering  
Methods Different human grasps were evaluated in regard to an ergonomic hand and wrist posture and their sensitivity to kinesthetic forces.  ...  Further, the cable-based approach allows a new arrangement of a user-hand-interface, aiming on congruent movements of input device and manipulator.  ...  The robot arm including camera-based hand detection allows precise maneuvering of the intake and output position.  ... 
doi:10.1515/bmt-2021-6052 pmid:34598391 fatcat:csqree4n75adhh5xpbzhgenhve

A Review of the Non-Invasive Techniques for Monitoring Different Aspects of Sleep [article]

Zawar Hussain, Quan Z. Sheng, Wei Emma Zhang, Jorge Ortiz, Seyedamin Pouriyeh
2021 arXiv   pre-print
The gold standard method for sleep analysis is polysomnography (PSG) conducted in a clinical environment but this method is both expensive and complex for long-term use.  ...  , sleep disorders detection, and vital signs monitoring.  ...  Then transfer learning is used to train the model for predicting the posture of new users. The use of transfer learning reduces the requirement of training data for new users.  ... 
arXiv:2104.12964v1 fatcat:5my5gmcmz5a2vpalkpefesfbgm

Central programming of postural movements: adaptation to altered support-surface configurations

F. B. Horak, L. M. Nashner
1986 Journal of Neurophysiology  
Support for this work was provided by National Institutes of Health Grants NRSA F32 NS-06926 to Dr. Horak and NS-1266 1 to Dr. Nashner and by the United Cerebral Palsy Research Foundation Grant R-320.  ...  Jane MacPherson and Eliot Saltzman for stimulating discussion and critiques of earlier drafts of this paper.  ...  METHODS To observe the organization of postural actions in relation to properties of the support surface, techniques developed in previous studies of human postural adjustments have been reapplied with  ... 
doi:10.1152/jn.1986.55.6.1369 pmid:3734861 fatcat:3sagjgrla5denev6y5ryxv6csu

The Role of Vision and Spatial Orientation in the Maintenance of Posture

Michael G Wade, Graeme Jones
1997 Physical Therapy  
We compare and contrast theory and evidence of both standard and ecological accounts of how the visual system perceives the information and the findings relative to the role of the retinal vision in processing  ...  This article reviews and analyzes the role of vision and spatial orientation in maintaining posture and balance.  ...  This idea, although relatively new to the field of physical therap~,"5~ is finding increasing theoretical and research support by investigators who are seeking a more complete description of how the system  ... 
doi:10.1093/ptj/77.6.619 pmid:9184687 fatcat:r3ywca6wavg3louxwm2r5pwy6q

Cliff or Step? Posture-Specific Learning at the Edge of a Drop-Off

Kari S. Kretch, Karen E. Adolph
2012 Child Development  
However, different experimental paradigms (visual cliff and actual gaps and slopes) have generated conflicting findings regarding what infants learn and the specificity of their learning.  ...  These findings suggest that infants do not acquire generalized responses like fear or wariness of heights. Rather, infants learn to perceive affordances for the experienced action.  ...  Child Development. against the ground surface; parts of the body used for support and propulsion relative to the friction, rigidity, extent, and slant of the ground surface; and so on.  ... 
doi:10.1111/j.1467-8624.2012.01842.x pmid:22906143 pmcid:PMC3505277 fatcat:l3tj6zqrfbglvlzsfxicx2xvry

Development of hybrid orthosis for standing, walking, and stair climbing after spinal cord injury

Rudi Kobetic, Curtis S To, John R Schnellenberger, Musa L Audu, Thomas C Bulea, Richard Gaudio, Gilles Pinault, Scott Tashman, Ronald J Triolo
2009 Journal of rehabilitation research and development  
The trunk is fixed in a rigid corset, and new ankle and trunk mechanisms are under development.  ...  Rotary actuators at each hip are configured in a closed hydraulic circuit and regulated by a finite state postural controller based on real-time sensor information.  ...  METHODS HNP Design Specifications A set of general design specifications for HNP systems was established and applied to the development and testing of a new prototype system.  ... 
pmid:19675995 fatcat:mb2mghhlefhw5cvvq2dyfljpma
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