Distance measuring method of robot, robot thereof, and recharging system
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Solution Overview
Problem
Current intelligent robots face inaccuracies in determining the distance between themselves and recharging docks using infrared alignment, leading to inefficient automatic recharging processes.
Innovation Solution
A distance measuring method involving steps to obtain and adjust directions using sensors and a processor to accurately calculate the distance between the robot and the recharging dock, employing infrared or other wireless signals, and adjusting the robot's position to align with the dock.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If infrared alignment is used to measure distance between robot and recharging dock, then automatic recharging process can be implemented, but measurement precision deteriorates when robot is in standing position
Solution Approach 1:
The patent transitions from one-dimensional infrared distance measurement to two-dimensional spatial positioning by introducing ultrasonic sensors that measure both horizontal and vertical distances. The robot calculates its position using coordinates (x, y) derived from ultrasonic time-of-flight measurements, enabling accurate distance determination regardless of robot orientation or standing position.
Solution Approach 2:
The patent introduces ultrasonic sensors as intermediary devices between the robot and recharging dock. These sensors emit ultrasonic waves and measure the reflected signals to calculate distance, serving as a mediator that provides accurate positioning information without being affected by the robot's standing position or orientation issues that plague direct infrared alignment methods.
2Reliability
If infrared alignment method is used, then automatic recharging can be achieved, but alignment accuracy deteriorates due to robot standing position
Solution Approach 1:
The system adds vertical dimension measurement capability using ultrasonic sensors to complement horizontal positioning. By measuring both horizontal distance (for alignment) and vertical distance (for height compensation), the system achieves reliable automatic recharging that is independent of the robot's standing position or elevation variations.
Solution Approach 2:
The robot continuously receives feedback from ultrasonic sensors about its actual position and distance relative to the recharging dock. This feedback enables real-time adjustment of the robot's position and orientation, ensuring accurate alignment and reliable recharging operation regardless of initial standing position or environmental variations.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This method ensures precise alignment and accurate distance measurement, enabling efficient automatic recharging by determining the correct position and orientation of the robot relative to the recharging dock.
Implementation Method 1
obtain a first direction along a connection line from a first position to a signals transmitting position
Data Source
AI summary
The present disclosure relates to a robot, a distance measuring method, and a recharging system for robot. The distance measuring method includes configuring a current position of a robot to be a first position, obtaining a first direction along a connection line from the first position to a signals transmitting position by a sensor of the robot, obtaining a second direction along a connection line from a second position to the signals transmitting position when the robot being driven by a driver to move along a moving direction by a predetermined distance to the second position, and the moving direction being perpendicular to the first direction to the second position, obtaining a distance between the second position and the signals transmitting position according to an included angle formed by the first direction and the second direction, and the predetermined distance.