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Design and test of wireless charging module for inspection robot in chicken farm
Bai Yungang, Zhu Zhongzheng, Hou Yingyong, Zhou Lichun, Xiao Maohua, Zou Xiuguo
Journal of Intelligent Agricultural Mechanization (in Chinese and English) 2022, 3 (2): 45-52. DOI:
10.12398/j.issn.2096-7217.2022.02.006
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Inspection robot of large-scale chicken farms inspects the health of chickens, and efficient and reliable charging modules can ensure continuous inspection. Existing wireless charging technology has many disadvantages, such as large size, cumbersome docking procedures and low efficiency. In order to overcome the disadvantages, a wireless charging module which could safely and quickly perform wireless automatic induction charging was proposed. The docking between the inspection robot and the charging pile was divided into two processes: remote docking and short-distance docking. Remote docking was completed by establishing a virtual map of the broiler house on the basis of SLAM (simultaneous localization and mapping) algorithm. In this case, the inspection robot could determine optimal path to the vicinity of the charging pile based on A*(A-star) algorithms. Short-distance docking combined infra-red with ultrasonic sensors for precise navigation so that the initial docking was completed. Then the robot was engaged with the mechanical structure of the charging pile for further precise docking. Experimental tests were carried out 120 times to gauge the accuracy of the docking between the charging pile and the inspection robot. The test results clearly demonstrated that the inspection robot was able to determine optimal path to the target location in the specified position. The accuracy of the docking could reach 100% by mechanical construction of the charging pile. The electromagnetic induction coil could fully charge a 4800 mAh lithium battery from 10.8 V to 12.6 V in 160 min. The process of charging is stable and safe.
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