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移動(dòng)機(jī)器人自主尋路避障啟發(fā)式動(dòng)態(tài)規(guī)劃算法
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國家火炬計(jì)劃資助項(xiàng)目和國家重點(diǎn)新產(chǎn)品專項(xiàng)基金資助項(xiàng)目(2009GJA20001)


Goal Seeking of Autonomous Mobile Robot with Obstacle Avoidance Using Heuristic Dynamic Programming
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    摘要:

    用啟發(fā)式動(dòng)態(tài)規(guī)劃算法解決移動(dòng)機(jī)器人自主尋路、避障問題。提出了傳感器檢測環(huán)境狀態(tài)的方法,,以及對傳感器檢測信息進(jìn)行歸一化處理的方案。對輸入,、輸出量以及學(xué)習(xí)系統(tǒng)的強(qiáng)化信號進(jìn)行定義,設(shè)計(jì)了機(jī)器人自主學(xué)習(xí)尋路,、避障的控制策略,。定義了連續(xù)型強(qiáng)化信號,使機(jī)器人通過學(xué)習(xí),,對優(yōu)先尋路還是優(yōu)先避障做出決策判斷,。為驗(yàn)證啟發(fā)式動(dòng)態(tài)規(guī)劃算法在移動(dòng)機(jī)器人尋路、避障問題上的學(xué)習(xí)能力,,設(shè)計(jì)了3種不同的尋路,、避障仿真實(shí)驗(yàn):同目標(biāo)、不同起始點(diǎn),,同起始點(diǎn),、不同目標(biāo),,和移動(dòng)目標(biāo)仿真實(shí)驗(yàn),。仿真結(jié)果表明,對于不同的尋路,、避障要求,,基于啟發(fā)式動(dòng)態(tài)規(guī)劃算法的移動(dòng)機(jī)器人具有良好的學(xué)習(xí)及適應(yīng)能力。

    Abstract:

    Heuristic dynamic programming (HDP) design for autonomous mobile robot was put forward to solve the goal seeking with obstacle avoidance problem. A method of sensor detecting was proposed, and the method for system normalizing the sensors’ inputs information was discussed. The input/output signal and reinforcement signal were defined, and a self learning strategy for robot seeking the goal with obstacle avoidance was proposed. A continuous reinforcement signal to improve the systems preferential decision between goal seeking and obstacle avoidance was designed. To verify the learning ability of our algorithm, three different simulation experiments were designed: same goal with different initial points and directions, same initial states with different goals, moving goal. The simulation results show that the HDP approach presents an effective learning ability for autonomous mobile robot on goal seeking with obstacle avoidance problem.

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方 嘯,鄭德忠.移動(dòng)機(jī)器人自主尋路避障啟發(fā)式動(dòng)態(tài)規(guī)劃算法[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2014,45(7):73-78. Fang Xiao, Zheng Dezhong. Goal Seeking of Autonomous Mobile Robot with Obstacle Avoidance Using Heuristic Dynamic Programming[J]. Transactions of the Chinese Society for Agricultural Machinery,2014,45(7):73-78.

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  • 收稿日期:2014-02-23
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  • 在線發(fā)布日期: 2014-07-10
  • 出版日期: 2014-07-10
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