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Fuzzy Analytic Hierarchy Process-Based Mobile Robot Path Planning
Open AccessArticle

Path Planning of a Sweeping Robot Based on Path Estimation of a Curling Stone Using Sensor Fusion

Department of Electrical Engineering, Yeungnam University, Gyeongsan, Gyeongbuk 38541, Korea
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Electronics 2020, 9(3), 457; https://doi.org/10.3390/electronics9030457
Received: 17 February 2020 / Revised: 5 March 2020 / Accepted: 6 March 2020 / Published: 8 March 2020
(This article belongs to the Special Issue Sensor-Based Navigation and Control with Applications)
In this paper, we proposed an enhanced path planning strategy for sweeper robots, which were created for the curling Olympic games. The main task for the multi-robot system is to clean the ice surface making a smooth path for a curling stone. The sweeping robots should have a motion planning on how to follow the curling stone slide and to prevent any collisions. In order to find the next position of the sweeping robot, it needs to establish the current position and to compute the next position of the curling stone. The initial and goal points of the sweeping robots are found and set up based on the simulation results from the main server. While the curling stone moves, the sweeping robots measure its position and adjust their motions according to the stone position trajectory. If the distance between the current and the next positions of a curling stone exceeds the threshold value, the sweeping robots should activate the sweeping mechanism preventing collisions with the stone. Since the estimation of the sweeping robot motion solely depends on the stone’s trajectory, the accumulation of errors is undesirable. Thus, the stone trajectory should be recalculated in a certain time step using the trend-adjusted exponential smoothing method. Then, the formation of the sweeping robot system can be calibrated according to the stone path computation. The obtained experimental results proved the efficiency of the proposed path planning method. View Full-Text
Keywords: sweeper robot; path prediction; path planning; thresholds; sweeping; trend adjusted exponential smoothing sweeper robot; path prediction; path planning; thresholds; sweeping; trend adjusted exponential smoothing
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Gwon, J.; Kim, H.; Bae, H.; Lee, S. Path Planning of a Sweeping Robot Based on Path Estimation of a Curling Stone Using Sensor Fusion. Electronics 2020, 9, 457.

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