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Dynamic obstacle avoidance path planning method based on improved mechanical arms D*

A path planning and dynamic obstacle avoidance technology, applied in manipulators, program-controlled manipulators, manufacturing tools, etc., can solve problems such as the problem of real-time obstacle avoidance path planning, and related methods cannot be generally applied to complex scenarios, and achieve a realistic operation method. Effect

Active Publication Date: 2016-11-30
BEIJING UNIV OF POSTS & TELECOMM
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the research on obstacle avoidance path planning of manipulators does not consider the problem of real-time obstacle avoidance path planning and the situation of dynamic obstacles in the environment, resulting in related methods that cannot be generally applied to more complex scenarios.

Method used

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  • Dynamic obstacle avoidance path planning method based on improved mechanical arms D*
  • Dynamic obstacle avoidance path planning method based on improved mechanical arms D*
  • Dynamic obstacle avoidance path planning method based on improved mechanical arms D*

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Embodiment Construction

[0025] In order to better understand the technical solutions of the present invention, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0026] It should be clear that the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0027] The embodiment of the present invention provides an improved D* manipulator dynamic obstacle avoidance path planning method, please refer to figure 1 , which is a schematic flow chart of the improved D* manipulator dynamic obstacle avoidance path planning method provided by the embodiment of the present invention, as shown in figure 1 As shown, the method includes the following steps:

[0028] Step 101 , enveloping the ro...

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Abstract

The embodiment of the invention provides an obstacle avoidance path planning method based on improved mechanical arms D* for achieving dynamic obstacle avoidance path planning of mechanical arms. The method comprises the steps that all components of the mechanical arms and obstacles in the environment are converted into a cuboid envelope through a hierarchical bounding volume method, and a relevant algorithm is designed for achieving fast collision detection between the mechanical arms and between the mechanical arms and the environment; according to spatial mechanical arm characteristics, a path search algorithm based on a heuristic function is obtained; obstacle avoidance path planning applied to seven-freedom-degree mechanical arms D* is improved, and dynamic obstacle avoidance path planning of the seven-freedom-degree mechanical arms is completed. According to the technical scheme, the method is used for achieving dynamic obstacle avoidance path planning of the seven-freedom-degree mechanical arms based on the improved mechanical arms D*.

Description

【Technical field】 [0001] The invention relates to a collision detection technology of a multi-degree-of-freedom manipulator and a dynamic obstacle-avoiding path planning technology, in particular to a dynamic obstacle-avoiding path planning method for a seven-degree-of-freedom manipulator. 【Background technique】 [0002] In the ever-changing development trend of human science and technology, robot technology has become one of the inevitable development trends of high-tech with its wide range of applications, flexible use methods, and unique requirements in special operations, and has therefore been favored by various countries. More and more attention. In recent years, the application of robotics in the field of aerospace has become more and more important. There is no doubt that robotic arms play a vital role in aerospace. The working performance and stability of the manipulator directly affect many aspects of the on-orbit operation. [0003] Obstacle avoidance path plan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25J9/16
CPCB25J9/1666
Inventor 贾庆轩刘嘉骏陈钢黄旭东王蕾夏川江
Owner BEIJING UNIV OF POSTS & TELECOMM
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