Article(id=1209816723885265131, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1209811339510411616, articleNumber=null, orderNo=null, doi=10.12404/j.issn.1671-1815.2405752, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1722355200000, receivedDateStr=2024-07-31, revisedDate=1734883200000, revisedDateStr=2024-12-23, acceptedDate=null, acceptedDateStr=null, onlineDate=1766372384281, onlineDateStr=2025-12-22, pubDate=1751904000000, pubDateStr=2025-07-08, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1766372384281, onlineIssueDateStr=2025-12-22, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1766372384281, creator=13701087609, updateTime=1766372384281, updator=13701087609, issue=Issue{id=1209811339510411616, tenantId=1146029695717560320, journalId=1146123166801305609, year='2025', volume='25', issue='19', pageStart='7885', pageEnd='8315', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1766371100547, creator=13701087609, updateTime=1766373228996, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1209820266960654935, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1209811339510411616, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1209820266960654936, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1209811339510411616, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=8127, endPage=8134, ext={EN=ArticleExt(id=1209816724359221512, articleId=1209816723885265131, tenantId=1146029695717560320, journalId=1146123166801305609, language=EN, title=Improvement of RRT-Connect Path Planning Algorithm Based on Complex Environments, columnId=1209816719539966141, journalTitle=Science Technology and Engineering, columnName=Papers∙Automation and Computational Technology, runingTitle=null, highlight=null, articleAbstract=
To address the issues of low path planning efficiency, poor obstacle avoidance capability, and low path quality of the RRT-Connect algorithm in complex environments, an improved RRT-Connect algorithm was proposed. Firstly, a bidirectional goal bias strategy was introduced to enhance the goal-directedness and path planning efficiency of the algorithm. Secondly, an obstacle avoidance optimization strategy was proposed to increase the algorithm's active obstacle avoidance capability and passage ability in complex environments. Finally, a path recombination strategy and a smoothing strategy were added to optimize the generated initial path, reducing path length and the number of turns, and improving path quality. The improved algorithm was compared with other algorithms in three complex environments using MATLAB. Simulation results show that the improved algorithm has less planning time, shorter path length, fewer sampling times, and a higher success rate of path planning, demonstrating the effectiveness of the improved algorithm in complex environments.
, correspAuthors=Yu-hao YUAN, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, authorCompany=null, fund=null, authors=null, authorsList=Zhong-wan TAN, Yu-hao YUAN), CN=ArticleExt(id=1209816726053720449, articleId=1209816723885265131, tenantId=1146029695717560320, journalId=1146123166801305609, language=CN, title=基于复杂环境的RRT-Connect路径规划算法改进, columnId=1209816721498706113, journalTitle=科学技术与工程, columnName=论文∙自动化技术、计算机技术, runingTitle=null, highlight=null, articleAbstract=
针对RRT-Connect算法在复杂环境下路径规划效率低、避障能力差以及生成路径质量差等问题,提出一种改进的RRT-Connect算法。首先,提出一种双向目标偏向策略,增加算法的目标导向性以及路径规划效率。其次,提出一种避障优化策略,增加算法在复杂环境下的主动避障能力以及通过能力。最后,加入路径重组策略和平滑策略对生成的初始路径进行优化处理,减少路径长度及拐点,提高路径质量。通过MATLAB将改进算法与其他算法在3种复杂环境下进行对比研究。仿真结果表明,改进算法相对规划时间更少、路径长度更短、采样次数更少、路径规划成功率更高,证明了改进算法在复杂环境下的有效性。
, correspAuthors=袁宇浩, authorNote=null, correspAuthorsNote=
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谭仲万(1998—),男,汉族,贵州毕节人,硕士研究生。研究方向:机器人路径规划。E-mail:1592146461@qq.com。
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谭仲万(1998—),男,汉族,贵州毕节人,硕士研究生。研究方向:机器人路径规划。E-mail:1592146461@qq.com。
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2021., articleTitle=null, refAbstract=null)], funds=[Fund(id=1209885583132987881, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209816723885265131, awardId=61773200, language=CN, fundingSource=国家自然科学基金(61773200), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1209885579190341867, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209816723885265131, xref=null, ext=[AuthorCompanyExt(id=1209885579198730476, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209816723885265131, companyId=1209885579190341867, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=College of Electrical Engineering and Control Science, Nanjing Tech University, Nanjing 211816, China), AuthorCompanyExt(id=1209885579207119085, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209816723885265131, companyId=1209885579190341867, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=南京工业大学电气工程与控制科学学院, 南京 211816)])], figs=[ArticleFig(id=1209885580989698404, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209816723885265131, language=EN, label=Fig.1, caption=
Expansion principle diagram of the RRT-Connect algorithm, figureFileSmall=w1SK0ZEqAME9DQ9G2U+cSg==, figureFileBig=XxaSg77kl2dLonlKS+M9+g==, tableContent=null), ArticleFig(id=1209885581107138920, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209816723885265131, language=CN, label=图1, caption=
RRT-Connect算法扩展原理图, figureFileSmall=w1SK0ZEqAME9DQ9G2U+cSg==, figureFileBig=XxaSg77kl2dLonlKS+M9+g==, tableContent=null), ArticleFig(id=1209885581241356655, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209816723885265131, language=EN, label=Fig.2, caption=
Principle diagram of the obstacle avoidance optimization strategy, figureFileSmall=ktIcHVr00b/oxj6dCszTPA==, figureFileBig=ieiuHNVLbN5vXu2RxtDLww==, tableContent=null), ArticleFig(id=1209885581350408564, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209816723885265131, language=CN, label=图2, caption=
避障优化策略原理图 为随机树扩展时发生碰撞的新节点; 、 、 为避障失败的偏转节点;而 为最终避障成功的偏移点
, figureFileSmall=ktIcHVr00b/oxj6dCszTPA==, figureFileBig=ieiuHNVLbN5vXu2RxtDLww==, tableContent=null), ArticleFig(id=1209885581425906043, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209816723885265131, language=EN, label=Fig.3, caption=
Schematic diagram of pathway recombination principle, figureFileSmall=sNhBgTdA/X36CefS/qiuxg==, figureFileBig=l3Gk7GulUPxjvVWwwmoc+g==, tableContent=null), ArticleFig(id=1209885581501403518, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209816723885265131, language=CN, label=图3, caption=
路径重组原理示意图, figureFileSmall=sNhBgTdA/X36CefS/qiuxg==, figureFileBig=l3Gk7GulUPxjvVWwwmoc+g==, tableContent=null), ArticleFig(id=1209885581614649739, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209816723885265131, language=EN, label=Fig.4, caption=
Flowchart of the improved RRT-Connect algorithm, figureFileSmall=JA3Ocgf00M7cMCkBYm5mNg==, figureFileBig=ydCx2AXQMLwPcj4Qjm4K5w==, tableContent=null), ArticleFig(id=1209885581715313044, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209816723885265131, language=CN, label=图4, caption=
改进RRT-Connect算法流程图, figureFileSmall=JA3Ocgf00M7cMCkBYm5mNg==, figureFileBig=ydCx2AXQMLwPcj4Qjm4K5w==, tableContent=null), ArticleFig(id=1209885581799199133, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209816723885265131, language=EN, label=Fig.5, caption=
Simulation results of the first complex environment, figureFileSmall=idQlNIlszKcLD80eFzTmHA==, figureFileBig=49rB/dIcqWsi+8B2V7lKCg==, tableContent=null), ArticleFig(id=1209885581887279524, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209816723885265131, language=CN, label=图5, caption=
第一种复杂环境仿真实验结果, figureFileSmall=idQlNIlszKcLD80eFzTmHA==, figureFileBig=49rB/dIcqWsi+8B2V7lKCg==, tableContent=null), ArticleFig(id=1209885582000525738, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209816723885265131, language=EN, label=Fig.6, caption=
Simulation results of the second complex environment, figureFileSmall=XFkvUgojWKu6CqLSgTa/ZA==, figureFileBig=bAunpyaxAhvnfghRHrzK/A==, tableContent=null), ArticleFig(id=1209885582067634607, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209816723885265131, language=CN, label=图6, caption=
第二种复杂环境仿真实验结果, figureFileSmall=XFkvUgojWKu6CqLSgTa/ZA==, figureFileBig=bAunpyaxAhvnfghRHrzK/A==, tableContent=null), ArticleFig(id=1209885582147326389, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209816723885265131, language=EN, label=Fig.7, caption=
Simulation results of the third complex environment, figureFileSmall=++1HNY18m0cwjIxh8GNtew==, figureFileBig=IWsYtSq160p8onOoA+yhXQ==, tableContent=null), ArticleFig(id=1209885582252183997, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209816723885265131, language=CN, label=图7, caption=
第三种复杂环境仿真实验结果, figureFileSmall=++1HNY18m0cwjIxh8GNtew==, figureFileBig=IWsYtSq160p8onOoA+yhXQ==, tableContent=null), ArticleFig(id=1209885582436733383, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209816723885265131, language=EN, label=Table 1, caption=
Simulation data of the first complex environment
, figureFileSmall=null, figureFileBig=null, tableContent=
| 算法 | 平均采样 次数/次 | 平均寻路 时间/s | 平均路径 长度/cm | 平均规划 成功率/% |
| RRT | 1 867.42 | 27.85 | 1 663.48 | 82.00 |
| RRT* | 2 500.00 | 18.63 | 1 421.43 | 86.00 |
| RRT-Connect | 354.57 | 4.26 | 1 591.25 | 92.00 |
| 改进算法 | 238.08 | 2.72 | 1 185.14 | 98.00 |
), ArticleFig(id=1209885582529008076, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209816723885265131, language=CN, label=表1, caption=
第一种复杂环境仿真实验数据
, figureFileSmall=null, figureFileBig=null, tableContent=
| 算法 | 平均采样 次数/次 | 平均寻路 时间/s | 平均路径 长度/cm | 平均规划 成功率/% |
| RRT | 1 867.42 | 27.85 | 1 663.48 | 82.00 |
| RRT* | 2 500.00 | 18.63 | 1 421.43 | 86.00 |
| RRT-Connect | 354.57 | 4.26 | 1 591.25 | 92.00 |
| 改进算法 | 238.08 | 2.72 | 1 185.14 | 98.00 |
), ArticleFig(id=1209885582625477074, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209816723885265131, language=EN, label=Table 2, caption=
Simulation data of the second complex environment
, figureFileSmall=null, figureFileBig=null, tableContent=
| 算法 | 平均采样 次数/次 | 平均寻路 时间/s | 平均路径 长度/cm | 平均规划 成功率/% |
| RRT | 2 021.19 | 35.12 | 1 593.75 | 84.00 |
| RRT* | 2 500.00 | 28.51 | 1 277.29 | 92.00 |
| RRT-Connect | 448.29 | 5.76 | 1 445.83 | 96.00 |
| 改进算法 | 228.41 | 2.58 | 1 157.60 | 100.00 |
), ArticleFig(id=1209885582742917592, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209816723885265131, language=CN, label=表2, caption=
第二种复杂环境仿真实验数据
, figureFileSmall=null, figureFileBig=null, tableContent=
| 算法 | 平均采样 次数/次 | 平均寻路 时间/s | 平均路径 长度/cm | 平均规划 成功率/% |
| RRT | 2 021.19 | 35.12 | 1 593.75 | 84.00 |
| RRT* | 2 500.00 | 28.51 | 1 277.29 | 92.00 |
| RRT-Connect | 448.29 | 5.76 | 1 445.83 | 96.00 |
| 改进算法 | 228.41 | 2.58 | 1 157.60 | 100.00 |
), ArticleFig(id=1209885582839386586, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209816723885265131, language=EN, label=Table 3, caption=
Simulation data of the third complex environment
, figureFileSmall=null, figureFileBig=null, tableContent=
| 算法 | 平均采样 次数/次 | 平均寻路 时间/s | 平均路径 长度/cm | 平均规划 成功率/% |
| RRT | 2 432.33 | 46.53 | 1 630.88 | 38.00 |
| RRT* | 2 500.00 | 32.52 | 1 428.57 | 66.00 |
| RRT-Connect | 1 018.55 | 14.73 | 1 597.03 | 84.00 |
| 改进算法 | 669.73 | 6.07 | 1 369.81 | 92.00 |
), ArticleFig(id=1209885582952632798, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209816723885265131, language=CN, label=表3, caption=
第三种复杂环境仿真实验数据
, figureFileSmall=null, figureFileBig=null, tableContent=
| 算法 | 平均采样 次数/次 | 平均寻路 时间/s | 平均路径 长度/cm | 平均规划 成功率/% |
| RRT | 2 432.33 | 46.53 | 1 630.88 | 38.00 |
| RRT* | 2 500.00 | 32.52 | 1 428.57 | 66.00 |
| RRT-Connect | 1 018.55 | 14.73 | 1 597.03 | 84.00 |
| 改进算法 | 669.73 | 6.07 | 1 369.81 | 92.00 |
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