sharPKUngfu Team sharPKUngfu Team  
sharPKUngfu Team's research interests include localization, multi-agent coordination, legged locomotion and robot vision.
In localization, we created a novel approach for a group of vision-based autonomous robots to localize in dynamic environments. Our hybrid system method for localization which consists of on-line and off-line subsystems inspired by human cognition has been applied to different robot systems, including RoboCup Four-legged Soccer, autonomous robot formation and coordination. Current work focuses on further development in algorithm and experience based localization without any artificial landmark.
Selected publications in this field: [1]
In multi-agent coordination, we have done a lot of work both in theoretic aspect and application aspect. We focus on modeling, simulation, and mathematical analysis for dynamic behavior of swarms, which are a typical kind of multi-agent systems from nature. Consensus problem and aggregation phenomena are investigated in detail. We considered many complex cases, including switching communication protocols, communication time-delays, and with/without a leader in the swarms. Based on these theoretic results, we try to solve engineering problems in multi-robot systems, especially for mobile robots. For example, formation control problem is viewed as a general case of consensus problem.
Selected publications in this field: [2] ~ [7]
In legged locomotion, we divided our research in two parts. On the one hand, we use Aibo to study four-legged locomotion. A Particle Swarm Optimization based approach for gait optimization is created. One the other hand, we implemented humanoid robot to analyze passive dynamic walking and running.
Selected publications in this field: [8] ~ [9]
 
Publications
Selected publications in recent years:
  • [1] Learning from human cognition: collaborative localization for vision-based autonomous robots. Qining Wang, Lianghuan Liu, Guangming Xie, Long Wang. Proceedings of the 2006 IEEE/RSJ International Conference on Intelligent Robots and Systems, October 9 -15, 2006, pp. 3301-3306.
  • [2] Aggregation of foraging swarms. Long Wang, Hong Shi, Tianguang Chu. Lecture Notes in Artificial Intelligence, 3339, 2004, pp.766-777.
  • [3] Dynamic behavior of discrete-time multiagent systems with general communication structures. Xiao Feng, Wang Long. PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS 370 (2): pp. 364-380 OCT 15, 2006.
  • [4] Complex emergent dynamics of anisotropic swarms: Convergence vs oscillation. Chu TianGuang, Wang Long, Chen TongWen, Mu ShuMei. CHAOS SOLITONS & FRACTALS 30 (4): 875-885 NOV 2006.
  • [5] State consensus for multi-agent systems with switching topologies and time-varying delays. Xiao Feng, Wang Long. INTERNATIONAL JOURNAL OF CONTROL 79 (10): 1277-1284 OCT 2006.
  • [6] Consensus problems in discrete-time multiagent systems with fixed topology. Xiao Feng, Wang Long, Wang AiPing. JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS 322 (2): 587-598 OCT 15 2006.
  • [7] Virtual leader approach to coordinated control of multiple mobile agents with asymmetric interactions. Shi Hong, Wang Long, Chu TianGuang. PHYSICA D-NONLINEAR PHENOMENA 213 (1): 51-65 JAN 1 2006.
  • [8] Ground contact angle in bipedal locomotion towards passive dynamic walking and running. Qining Wang, Long Wang. 2007 American Control Conference (2007 ACC), accepted.
  • [9] Legged locomotion of humanoid robotic limb with foot and knee: towards passive dynamic skipping and running. Long Wang, Qining Wang. International Symposium on Humanized Systems. Busan, Korea, 2006, pp. 40-46.
  • [10] The design of a real-time embedded control system based on ARM for autonomous mobile robots. Qining Wang, Jingeng Mai, Guangming Xie and Long Wang. The 4th Regional Inter-University Postgraduate Electrical & Electronic Engineering Conference, Macao, 2006.
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