Papers by Author: Yan Hong Du

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Authors: Yuan Liu, Ya Ping Yu, Ruo Kui Chang, Yan Hong Du
Abstract: Analysis of the relationship between defrost and the temperature and humidity. The design is SCM for the control of the core, to improve the greenhouse wall surface temperature, is used for defrosting, coating and ventilation dehumidification. Thus, achieve the purpose of defrosting and Dehumidification. Practice is proved that the system is less affected by environmental factors and has wide range of applications.
Authors: Yan Hong Du, Wei Yu Zhang, Ruo Kui Chang, Li Wang, Jin Cai Zhao
Abstract: S7-200 Series PLC supplied by SIEMENS as controller has been adopted in this system, which is based on 3D force-controlled configure software, using GPRS RTU transparent transmission function, to realize the remote monitor for the process, parameter and the operation status of the main equipment of rural domestic sewage treatment. The monitoring & indicating of sewage treatment process, the storage and the query of history memory of various monitoring data, control data and operation data, the generation of data statement and data curve, and the IE explorer remote access monitoring interface have been supported in this system.
Authors: Yan Hong Du, Wei Yu Zhang, Xin Song, Yuan Liu, Ruo Kui Chang
Abstract: In this paper, the optimized point stabilization control of nonholonomic wheeled mobile robot has been researched, and point stabilization control of constraint nonholonomic wheeled system has been achieved through the geometry planning method based on Bézier, and constrained system is converted to un-constraint optimized question based on introducing penalty functions. The optimized control parameters has been got through Hooke-Jeeves method to achieve the perfect combination of the optimized route planning and optimized control, which can make the robot achieve the target pose under the constraint condition and improve the smooth of move path and reduce the stable time. The controller's validity is proved by the experiment.
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