Mobile robot

Abstract

The invention discloses a mobile robot, and relates to the technical field of robots. The mobile robot comprises a body, and wheels, a motor, a first image acquisition device, a photoelectric sensor, a supplement light and a processor which are arranged on the body, wherein the wheels are driven by the motor to drive the mobile robot to move on the ground; the first image acquisition device is used for acquiring environment images; the processor is used for performing data processing on the environment images through a preset method, controlling the motor to perform obstacle avoidance action when identifying obstacles in the environment images, eliminating close-distance detection dead zones, and improving user experience; the photoelectric sensor is used for detecting environment illumination intensity; and the processor is further used for controlling the supplement light to give out light when environment illumination intensity is smaller than or equal to a preset threshold value, so that illumination intensity in the visual range of the first image acquisition device is improved, the first image acquisition device conveniently shoots enough bright environment images, and detection success rate is increased.

Description

technical field [0001] The invention relates to the technical field of robots, in particular to a mobile robot. Background technique [0002] When mobile robots such as sweeping robots, escort robots, and welcome robots operate in complex indoor environments, they tend to climb up low obstacles such as fan slope bases, shoe uppers, and wires, causing the wheels of the robots to be overhead or entangled by wires. In severe cases, it may cause the robot to fall to the ground and cause a safety accident. If the robot can detect low obstacles in front of it in advance and then avoid them, the robot will become smarter, safer and more reliable. The existing common technical solutions for detecting low obstacles mainly include: [0003] (1) Mechanical collision detection: A mechanical baffle connected to an electronic switch is installed in front of the bottom of the robot. When an obstacle is encountered, the electronic switch switches from a disconnected state to a connected s...

AI Technical Summary

Problems solved by technology

First, the emission angle of the ultrasonic ranging sensor is relatively narrow, and multiple installations are required to fully cover the front detection space, which will greatly increase the cost

In the second aspect, ultrasonic waves are easily affected by factors such as ambient temperature, reflector material, and multipath propagation of sound waves.

In the third aspect, the ultrasonic sensor with integrated transceiver has the problem of large short-distance blind area, and the ultrasonic sensor with separate transceiver has the problem of large volume, which makes the shell opening larger and not very beautiful.

In the fourth aspect, due to the limitation of the shell structure, the ultrasonic sensor cannot be installed too low, so that some low obstacles with a lower height than the ultrasonic sensor will be missed

Infrared detection is greatly affected by ambient light, and there is also a problem of large short-range blind spots

Obstacles made of glass, light-absorbing or all-black materials are easily missed, and the accuracy consistency is poor

Affected by the structure of the shell, the infrared sensor cannot be installed too low, so that some low obstacles with a lower height than the infrared sensor may be missed

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