Mobile Robot Boundary Mapping Using Distance Sensor Coordinates
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Solution Overview
Problem
Existing mobile robot systems face limitations in accurately and conveniently setting boundary regions, particularly outdoors, due to reliance on beacon installations which can lead to inaccurate boundary formation and limited usability, safety, and reliability.
Innovation Solution
A mobile robot system utilizing a signal processing device with a receiving tag and distance sensor to recognize coordinate information, allowing for the generation of boundary information by designating a boundary region based on distance measurements and reception results.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If beacons are installed at boundary portions to determine relative position, then position recognition accuracy is improved, but device complexity and installation cost increase
Solution Approach 1:
The patent extracts the boundary definition function from the beacon system and implements it through a portable terminal application. Instead of requiring physical beacons at boundary portions, the system uses the terminal's camera to capture images and define boundaries virtually through coordinate information, eliminating the need for complex beacon installation while maintaining position recognition capability
Solution Approach 2:
The patent replaces the mechanical beacon installation system with a software-based boundary definition system. The portable terminal uses camera imaging and coordinate processing to establish boundary regions, substituting physical infrastructure with digital processing methods, thereby reducing device complexity and installation requirements
2Measurement precision
If beacons are distributed at boundary portions for accurate boundary setting, then boundary setting accuracy is improved, but ease of operation deteriorates due to limited user control
Solution Approach 1:
The patent enables users to perform boundary setting themselves through the portable terminal application. Users can capture images, select boundary portions, and define coordinate information directly through the terminal interface, making the system self-service oriented and greatly improving ease of operation while maintaining accurate boundary definition capability
Solution Approach 2:
The patent makes the boundary setting process dynamic and adaptable to user needs. The system allows users to freely designate boundary portions and adjust coordinate information as required, transforming the static beacon-based approach into a flexible, user-controlled system that can adapt to various operational scenarios
3Measurement precision
If boundary region is set based on beacon installation state, then position determination is improved, but reliability decreases due to communication performance dependency
Solution Approach 1:
The patent uses the portable terminal's camera to capture images of the boundary region and creates a digital copy of the boundary information through coordinate processing. This copied boundary data is stored and used for position determination, providing a reliable alternative that does not depend on real-time beacon communication performance while maintaining accurate position determination capability
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
Enables simple, convenient, and accurate boundary setting, enhancing the efficiency, usability, and utility of mobile robot systems by allowing arbitrary and precise boundary region definition.
Implementation Method 1
measuring a distance to a point to which a measurement signal is irradiated based on a result of irradiating the measurement signal to a ground surface of the driving region
Implementation Method 2
a distance sensor that measures a distance to a point to which a measurement signal is irradiated based on a result of irradiating the measurement signal to a ground surface
Implementation Method 3
a receiving tag that receives a transmission signal
Data Source
AI summary
The present specification relates to a mobile robot system and a boundary information generation method for the mobile robot system, the mobile robot system comprising a signal processing device that comprises a receiving tag for receiving a transmission signal and a distance sensor, so as to recognize coordinate information about a spot at which the point of the distance sensor is designated on the basis of the reception result of the receiving tag and the distance measurement result of the distance sensor, thereby generating boundary information according to the path designated as the point of the distance sensor on the basis of the recognized coordinate information.