Ultrasonic obstacle avoidance device, robot system and method of controlling robot to avoid obstacles

Abstract

The invention discloses an ultrasonic obstacle avoidance device, a robot system and a method of controlling a robot to avoid obstacles. The device is used for controlling a robot to avoid an obstacle,and comprises a plurality of ultrasonic ranging modules and an acquisition module, wherein the ultrasonic ranging modules are installed at different parts of the robot, each ultrasonic ranging modulecomprises an ultrasonic sensor and a first control chip, and the first control chip calculates distance data between the robot and the obstacle; and the acquisition module establishes wireless communication with the plurality of ultrasonic ranging modules through the plurality of first control chips and a second control chip, and acquires distance data between the robot and the obstacle from theplurality of ultrasonic ranging modules. By means of the mode, wiring can be reduced, signal interference caused by messy wiring is further avoided, and ultrasonic signals can be accurately collectedso as to control the robot to accurately avoid obstacles.

Description

technical field [0001] The present application relates to the technical field of obstacle avoidance, in particular to an ultrasonic obstacle avoidance device, a robot system and a method for controlling robot obstacle avoidance. Background technique [0002] The robot obstacle avoidance system is a robot system that can obtain environmental information through its own installed sensors, fuse and analyze the information, and can autonomously avoid obstacles and complete certain tasks. In the prior art, the sensors used in the robot obstacle avoidance system may be sonar sensors, vision sensors, infrared sensors, ultrasonic sensors or compass and so on. Because ultrasonic is not susceptible to interference, energy consumption is slow, and the propagation distance is relatively long, and ultrasonic sensors are cheap and easy to implement hardware, they are widely used in various ranging and obstacle avoidance, positioning and environmental modeling. [0003] In the long-term r...

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Problems solved by technology

[0003] In the long-term research and development process, the inventor of the present application found that the ultrasonic sensor is usually connected to the acquisition module by a wired connection, resulting in that if the ultrasonic ranging module contains multiple ultrasonic sensors, the wiring is very messy and prone to wrong wiring and signal interference, resulting in failure to realize the normal obstacle avoidance function

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