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基于視覺的吊裝機(jī)器人卷揚(yáng)隨動控制研究
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國家自然科學(xué)基金項(xiàng)目(51575219)


Visual Based Robotic Hoisting Motion Following Control
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    摘要:

    海洋浪涌對海洋物流吊裝機(jī)械工作安全及可靠性有很大的影響,。目前海浪運(yùn)動補(bǔ)償多基于IMU或MRU等船舶專用傳感器,其成本較高,。采用組合標(biāo)識,,提出基于視覺的吊裝機(jī)器人卷揚(yáng)隨動控制方法,。首先,,對機(jī)械臂進(jìn)行運(yùn)動學(xué)分析以及手眼標(biāo)定,,采用視覺標(biāo)識對復(fù)雜環(huán)境下的目標(biāo)進(jìn)行檢測,,采用主方向定位以及DLT算法對標(biāo)識進(jìn)行定位,;然后通過建立卷揚(yáng)系統(tǒng)模型,,在速度環(huán)上采用偽微分反饋復(fù)合控制算法,使用基于雙S形曲線運(yùn)動規(guī)劃加減算法進(jìn)行目標(biāo)運(yùn)動跟蹤,、路徑重規(guī)劃,,并采用加減速方法生成運(yùn)動軌跡。通過搭建試驗(yàn)平臺,,模擬海上工作環(huán)境并進(jìn)行靜態(tài)目標(biāo)和動態(tài)目標(biāo)跟隨試驗(yàn),,驗(yàn)證了卷揚(yáng)升降控制的可行性以及隨動控制策略的有效性。

    Abstract:

    The marine economy plays a very important and positive role in the national economy and social development. Because the ocean surges have a great impact on the safety and efficiency of marine logistics hoisting machine. At present, the wave motion compensation is mostly based on ship-specific sensors such as IMU or MRU, and the cost is high. A combination of logos was used, and a vision-based robotic hoisting motion following control method was proposed. Firstly, the kinematics analysis and hand-eye calibration of the manipulator were carried out. By using visual marker, the target objects in complex environments can be detected and identified. The man direction and direct linear transfer algorithm was used to calculate the orientation and position of the marker. A combination marker resisting image noise and occlusion issues with pose confusion scheme was designed. A quaternion based Kalman filter was used for pose estimation of combined marker. Then by establishing the hoist system model, the pseudodifferential feedback compound control algorithm was used on the speed loop. Trajectory tracking performance was improved. Based on the double S-shaped curve motion planning algorithm, the target motion tracking and path replanning were performed, and the acceleration/deceleration method was used to generate motion trajectory. Based on the comprehensive experimental platform of marine automatic and intelligent lifting equipment which can simulate the offshore working environment, the visual-based hoisting robot arm winch lifting and following control method was studied. And static targets and dynamic target following experiments were performed, the feasibility of the hoisting lift control and the effectiveness of the follow-up control strategy were verified.

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徐春博,趙丁選,孔維天,鄒少元,倪濤,舒禮志.基于視覺的吊裝機(jī)器人卷揚(yáng)隨動控制研究[J].農(nóng)業(yè)機(jī)械學(xué)報,2020,51(1):417-426. XU Chunbo, ZHAO Dingxuan, KONG Weitian, ZOU Shaoyuan, NI Tao, SHU Lizhi. Visual Based Robotic Hoisting Motion Following Control[J]. Transactions of the Chinese Society for Agricultural Machinery,2020,51(1):417-426.

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  • 收稿日期:2019-06-10
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  • 在線發(fā)布日期: 2020-01-10
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