1,722,092 research outputs found

    Integrated balance control on uneven terrain

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    To reach competent Human-Robot Interaction, robots should be able to behave stably on uneven terrain in domestic environments. This paper addresses a technique, which integrates four balance control strategies and is used on Nao robot to realize walking on uneven terrain that is not modelled in advance. The most important two strategies are "Closed Loop Gait Pattern Generator" and "Posture Control". The former one uses the filtered robot state based on Kalman filter. It helps to improve joint tracking, which is important for model based approaches. The latter one helps to make the trunk vertical to the ground. This strategy is very effective when walking on a slope. The other two strategies are "CoG (Center of Gravity) Height Control" and "Ankle Joint Control", which are used to resist relatively large tilt and prevent potential falling over motion. abstract environment. © 2013 Springer-Verlag

    sj-docx-1-dhj-10.1177_20552076241237706 - Supplemental material for Application of standardized management and effect evaluation of chronic obstructive pulmonary disease patients using the big data center of the Internet of Things

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    Supplemental material, sj-docx-1-dhj-10.1177_20552076241237706 for Application of standardized management and effect evaluation of chronic obstructive pulmonary disease patients using the big data center of the Internet of Things by Xiaoping Chen, Fei He, Yan Jiang, Xuezhen Chen and Yubing Yan in DIGITAL HEALTH</p

    sj-docx-4-dhj-10.1177_20552076241237706 - Supplemental material for Application of standardized management and effect evaluation of chronic obstructive pulmonary disease patients using the big data center of the Internet of Things

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    Supplemental material, sj-docx-4-dhj-10.1177_20552076241237706 for Application of standardized management and effect evaluation of chronic obstructive pulmonary disease patients using the big data center of the Internet of Things by Xiaoping Chen, Fei He, Yan Jiang, Xuezhen Chen and Yubing Yan in DIGITAL HEALTH</p

    sj-docx-5-dhj-10.1177_20552076241237706 - Supplemental material for Application of standardized management and effect evaluation of chronic obstructive pulmonary disease patients using the big data center of the Internet of Things

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    Supplemental material, sj-docx-5-dhj-10.1177_20552076241237706 for Application of standardized management and effect evaluation of chronic obstructive pulmonary disease patients using the big data center of the Internet of Things by Xiaoping Chen, Fei He, Yan Jiang, Xuezhen Chen and Yubing Yan in DIGITAL HEALTH</p

    sj-docx-3-dhj-10.1177_20552076241237706 - Supplemental material for Application of standardized management and effect evaluation of chronic obstructive pulmonary disease patients using the big data center of the Internet of Things

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    Supplemental material, sj-docx-3-dhj-10.1177_20552076241237706 for Application of standardized management and effect evaluation of chronic obstructive pulmonary disease patients using the big data center of the Internet of Things by Xiaoping Chen, Fei He, Yan Jiang, Xuezhen Chen and Yubing Yan in DIGITAL HEALTH</p

    sj-docx-2-dhj-10.1177_20552076241237706 - Supplemental material for Application of standardized management and effect evaluation of chronic obstructive pulmonary disease patients using the big data center of the Internet of Things

    No full text
    Supplemental material, sj-docx-2-dhj-10.1177_20552076241237706 for Application of standardized management and effect evaluation of chronic obstructive pulmonary disease patients using the big data center of the Internet of Things by Xiaoping Chen, Fei He, Yan Jiang, Xuezhen Chen and Yubing Yan in DIGITAL HEALTH</p

    sj-docx-1-wmr-10.1177_0734242X231187560 – Supplemental material for Comparative study of different sewage sludge incineration treatments based on environmental and economic life cycle assessment

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    Supplemental material, sj-docx-1-wmr-10.1177_0734242X231187560 for Comparative study of different sewage sludge incineration treatments based on environmental and economic life cycle assessment by Xiaoyong Zhang, Xiaoping Chen, Jun Xiao, Xiaowei Peng, Jianguo Wang, Jiliang Ma, Daoyin Liu and Cai Liang in Waste Management & Research</p

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed

    Real time biped walking gait pattern generator for a real Robot

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    The design of a real time and dynamic balanced biped walking gait pattern generator is not trivial due to high control space and inherently unstable motion. Moreover, in the Robocup domain, robots that are able to achieve the goal footstep in a short duration have a great advantage when playing soccer. In this paper, we present a new technique to realize a real time biped walking gait pattern generator on a real robot named Nao. A Zero Moment Point (ZMP) trajectory represented by a cubic polynomial is introduced to connect the goal state (the position and the velocity of the CoG) to the previous one in only one step. To apply the generator on the real robot Nao, we calculate the compensation for two HipRoll joints in a theoretical way by modeling them as elastic joints. The nao of version 3.3 is used in the experiments. The walk is intrinsically omnidirectional. When walking with step duration 180ms, the robot can respond to the high level command in 180ms. The maximum forward speed is around 0.33m/s. The maximum backward speed is around 0.2m/s. The maximum sideways speed is around 0.11m/s. The maximum rotational speed is around 90°/s. © 2012 Springer-Verlag Berlin Heidelberg
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