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A Method of Autonomous Obstacle Avoidance for Agents Based on the Guidance of State Policy Knowledge Base

A technology of intelligent body and knowledge base, applied in the direction of two-dimensional position/channel control, instrument, control/regulation system, etc., can solve the problems of redundant paths, not considering the optimal route of intelligent body, poor timeliness, etc., to avoid The effect of path redundancy

Active Publication Date: 2022-04-26
WUHAN UNIV
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Problems solved by technology

However, these methods are mainly based on online real-time calculations and do not use offline knowledge bases. When faced with complex scenes with dynamic obstacles, there are problems of large amount of calculation and poor timeliness.
At the same time, in the process of obstacle avoidance, the optimal route of the agent's complete travel process is not considered, resulting in a large number of redundant paths and even collisions.

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  • A Method of Autonomous Obstacle Avoidance for Agents Based on the Guidance of State Policy Knowledge Base
  • A Method of Autonomous Obstacle Avoidance for Agents Based on the Guidance of State Policy Knowledge Base
  • A Method of Autonomous Obstacle Avoidance for Agents Based on the Guidance of State Policy Knowledge Base

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Embodiment Construction

[0072] In order to facilitate those of ordinary skill in the art to understand and implement the present invention, the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the implementation examples described here are only used to illustrate and explain the present invention, and are not intended to limit this invention.

[0073] Before implementing the autonomous obstacle avoidance method proposed by the present invention, it is assumed that the agent itself has the ability of global path planning, and advances at a constant speed according to the path planning. The method proposed in this patent is applied to a single obstacle avoidance, that is, in the process of normal progress, the agent judges the need to avoid obstacles through the sensory data, sets the obstacle avoidance sub-goal, and uses the method of this patent to avoid obstacles.

[0074] The obstacle avoidance sy...

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Abstract

The invention discloses an intelligent body autonomous obstacle avoidance method based on the guidance of a state strategy knowledge base, which endows the intelligent body with obstacle recognition and obstacle avoidance capabilities. The method includes five steps. Step 1 senses the obstacle avoidance environment, and judges whether obstacle avoidance measures need to be taken for the obstacle. If obstacle avoidance is required, the state of the obstacle avoidance environment is constructed; Knowledge base matching, if the matching is unsuccessful, go to step 3, if the matching is successful, then apply the knowledge base to output decision-making; step 3 based on the fuzzy neural network online output strategy for the new state, and add the state-strategy to the knowledge base; step 5 judge intelligence Whether the body reaches the target point, if not, repeat step 1, otherwise, end. The present invention is characterized in that the off-line state strategy knowledge base and the online fuzzy neural network are used to solve the obstacle avoidance problem, the knowledge base can realize incremental development during the obstacle avoidance process, and is suitable for quickly solving various obstacle avoidance problems.

Description

technical field [0001] The invention belongs to the technical field of mobile intelligent obstacle avoidance, and in particular relates to an autonomous obstacle avoidance method for an intelligent body guided by a state policy knowledge base. Background technique [0002] With the development of science and technology, mobile agents can replace human labor in the field of transportation. Although the path planning is provided in advance during the transportation process, the environment is usually complex and changeable, and there are interferences from static and dynamic obstacles. Therefore, the intelligent agent Autonomous obstacle avoidance capability is the key to ensure its smooth arrival at the destination. The autonomous obstacle avoidance of the agent is mainly divided into two steps. The first step is to judge whether obstacle avoidance is needed according to the obstacle information obtained within the perception range; the second step is to specify the correspon...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05D1/02
CPCG05D1/024G05D1/0223G05D1/0221G05D1/0276G05D2201/02
Inventor 向隆刚李雅丽
Owner WUHAN UNIV
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