Robot obstacle avoidance device, obstacle avoidance control method and robot

A robot and obstacle avoidance technology, applied in two-dimensional position/channel control, vehicle position/route/height control, control/adjustment system, etc., can solve the problem of improving the effect of obstacle avoidance, lack of historical information and effective use of spatial information, etc. problem, to achieve the effect of improving obstacle avoidance effect, improving feature expression ability, and facilitating deployment and application

A robot and obstacle avoidance technology, applied in two-dimensional position/channel control, vehicle position/route/height control, control/adjustment system, etc., can solve the problem of improving the effect of obstacle avoidance, lack of historical information and effective use of spatial information, etc. problem, to achieve the effect of improving obstacle avoidance effect, improving feature expression ability, and facilitating deployment and application

CN114518762BActive Publication Date: 2022-07-22CHANGSHA XIAOGU TECH CO LTD

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  • Robot obstacle avoidance device, obstacle avoidance control method and robot
  • Robot obstacle avoidance device, obstacle avoidance control method and robot
  • Robot obstacle avoidance device, obstacle avoidance control method and robot

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Experimental program
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Embodiment Construction

[0042] like figure 1 As shown, in order to improve the timeliness and accuracy of obstacle avoidance of the robot, the present invention first provides a robot obstacle avoidance device QNet, including:

[0043] 1: Obstacle avoidance input module, used to input the scene data, target position data and robot speed data from time t-T1 to time t of the robot (parameter t represents a certain current moment, T1 represents a positive number, and t-T1 represents the past a certain period of time, i.e. historical moment); preferably, for the input of the obstacle avoidance model, optional but not limited to the robot's state matrix state(t)=[O(t-T1)...O(t), Goal (t), Velocity(t)] characterization. Among them, O(t-T1)...O(t), representing the scene data of the robot from time t-T1 to time t (historical data from t-T1 to t and current data at current time t). Goal(t) =[Goal_x(t), Goal_y(t)], representing the position data of the target relative to the robot (optional but not limited...

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Abstract

The invention relates to a robot obstacle avoidance device, an obstacle avoidance control method and a robot. On the one hand, time series features and spatial features are extracted, and target position data and robot speed data are integrated, which can improve the feature expression ability of deep reinforcement learning and improve the value of preset actions. Predict timeliness and accuracy; on the other hand, fully consider the scene data of the robot from t-T1 to t, and effectively use the current local environment information, historical information and spatial information to accurately evaluate the value of the robot's preset actions, which can ensure the robot The reliability of subsequent obstacle avoidance is significantly improved compared with the existing technology, and the accuracy and timeliness of its obstacle avoidance effect are significantly improved, and the original lidar ranging data can be directly used, which has fast response ability and is convenient for network operation. Deployment and application.

Description

technical field [0001] The invention relates to the field of robot control, in particular to an obstacle avoidance control of a robot. Background technique [0002] With the development of robotics, robots have been widely used in various scenarios, such as courier robots, sweeping robots, and security robots. It uses sensors such as lidar and cameras to perceive the surrounding environment, thereby achieving collision avoidance and autonomous navigation. However, in a dynamic environment, the interactive movement behaviors from vehicles, pedestrians, and other robots bring great challenges to the robot's obstacle avoidance. [0003] In recent years, obstacle avoidance methods based on deep reinforcement learning have excellent performance in dynamic environments, and are currently a hot research topic. The published patent CN108255182B has developed a pedestrian perception obstacle avoidance method for service robots based on deep reinforcement learning, which can integra...

Claims

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Application Information

Patent Timeline
22 Jul 2022
Publication
CN114518762B
IPC
G05D1/02
CPC
G05D1/024; G05D1/0257; G05D1/0223; G05D1/0221; G05D1/0276
Inventors
陈俊逸; 汤继敏