Man-machine collaborative path planning method for mobile robot in unstructured environment

A mobile robot, unstructured technology, applied in the direction of instruments, non-electric variable control, two-dimensional position/channel control, etc., can solve problems such as inability to operate autonomously, operator difficulties, and reduced performance capabilities, to overcome the inability to autonomously The effect of completing the planning of the complex environment in the field, reducing the burden of manipulation, and improving work efficiency

Active Publication Date: 2021-10-01
YANSHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Although the intelligence level of the mobile robot system has made great progress, due to the limitations of its cognitive ability, the autonomous planning problem in unstructured and other challenging environments cannot be completely handed over to the robot system.
For example, for search and rescue work in unstructured environments such as after disasters, on the one hand, the disaster environment is too dangerous or humans cannot enter at all, and the scene is too complex for autonomous robots to work autonomously. important
On the other hand, driving a robot in a disaster scene is a highly stressful and difficult job for the operator. A large part of the operator's work is just low-level tasks such as manipulating the robot and avoiding obstacles, while covering the search area and successfully finding Decreased performance in victims, etc.

Method used

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  • Man-machine collaborative path planning method for mobile robot in unstructured environment
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  • Man-machine collaborative path planning method for mobile robot in unstructured environment

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specific Embodiment

[0108] see figure 2 , which shows a flow chart of a human-machine collaborative path planning method for a mobile robot in an unstructured environment in an embodiment of the present invention, the method includes:

[0109] Operator-guided path planner:

[0110] The operator-guided path planning of the present invention is realized based on the B-spline curve, which is a linear combination of B-spline basis functions, which is improved from the Bezier curve, which makes up for the inability of the Bezier curve to be locally modified defect, the curve expression is:

[0111] gamma S (x)={γ(x,s)∈R 2 |s∈S} (1)

[0112] in, Represents the control point vector, s represents the node of the B-spline curve, and the set S represents the node vector.

[0113] Modifications to the path by the manipulator are done through the joysticks:

[0114]

[0115] Among them, q represents the configuration vector of the joystick, M(q) represents the inertia matrix, denote the Corioli...

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Abstract

The invention provides a man-machine collaborative path planning method for a mobile robot in an unstructured environment. The man-machine collaborative path planning method comprises the following steps: S1, enabling an operator to guide a path planner; s2 using a robot autonomous path planner; s3, performing hybrid filtering on the path planned by the operator obtained in the step S1 and the path autonomously planned by the robot obtained in the step S2, and synthesizing the path modified by the operator and the path autonomously planned by the robot; and S4, tactile feedback: feeding back the position deviation and the speed deviation of the planned path and the actual driving path of the robot to a handle of an operator in a force / tactile form. According to the method, the remote control technology based on force / touch and the autonomous planning technology are combined together, the defect that the mobile robot cannot autonomously complete field complex environment planning is overcome, the control burden of an operator is relieved, and the working efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of path planning and remote manipulation, in particular to a human-machine cooperative path planning method in an unstructured environment of a mobile robot. Background technique [0002] Although the intelligence level of mobile robot systems has made great progress, due to the limitations of their cognitive capabilities, autonomous planning problems in unstructured and other challenging environments cannot be completely handed over to robot systems. For example, for search and rescue work in unstructured environments such as after disasters, on the one hand, the disaster environment is too dangerous or humans cannot enter at all, and the scene is too complicated for autonomous robots to work autonomously. important. On the other hand, driving a robot in a disaster scene is a highly stressful and difficult job for the operator. A large part of the operator's work is just low-level tasks such as manipulatin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D1/02
CPCG05D1/0246G05D1/0257G05D1/0223G05D1/0276
Inventor 倪涛张泮虹任长安李文航赵亚辉翟海阳孙旭员荣祥李小涛王子鹤
Owner YANSHAN UNIV
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