Methods and systems for mapping, localization, navigation and control and mobile robot

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Solution Overview

Problem

Existing navigation systems for mobile robots struggle with precise localization and mapping, leading to inaccurate positioning and inefficient route planning.

Innovation Solution

A mobile robot system equipped with an image acquisition device and processing units that capture and analyze projected images to determine the position and pose of entity objects, allowing for precise localization and route planning based on angle information and movement data.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of time

If a mobile robot determines its current position according to position information provided by a mobile sensor and localizes based on identified image features in a single image, then the localization speed is improved, but the positioning accuracy deteriorates

Engineering Contradiction:
Improvelocalization speedVSAvoidpositioning accuracy
Core Design Contradiction:
Loss of timeVSMeasurement precision

Solution Approach 1:

The patent transitions from two-dimensional image feature matching to three-dimensional spatial relationship analysis. By capturing images at multiple positions and calculating spatial relationships between entity objects across these positions, the system achieves accurate localization while maintaining speed. The third dimension (spatial position) is added to the traditional image matching approach, enabling precise position determination through geometric calculations rather than relying solely on single-image feature correspondence.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The system performs preliminary actions by capturing multiple images at different positions before final localization. Instead of determining position from a single image, the robot captures images at multiple positions first, then uses these pre-captured images to calculate the current position through spatial relationship analysis. This preliminary data collection enables both fast and accurate localization.

Inventive Principle:
Principle #10Preliminary action

2Manufacturing precision

If the robot captures and analyzes multiple projected images to determine entity object positions, then the mapping precision is improved, but the device complexity increases

Engineering Contradiction:
Improvemapping precisionVSAvoidsystem complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The image acquisition device serves multiple functions: capturing images for entity object identification, determining spatial positions, calculating robot pose, and supporting navigation. By making the imaging system multi-functional, the patent achieves high mapping precision without proportionally increasing device complexity. The same hardware infrastructure supports multiple computational tasks through software processing.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent replaces complex mechanical positioning systems with computational image analysis. Instead of using multiple specialized sensors and complex mechanical positioning mechanisms, the system uses image processing and spatial relationship calculations to achieve precise mapping and localization, reducing mechanical complexity while maintaining or improving precision.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS11320834B2Methods and systems for mapping, localization, navigation and control and mobile robot
Publication Date: 2022.05.03 ANKOBOT (SHENZHEN) SMART TECH CO LTD
  • US11320834B2 patent drawing
  • US11320834B2 patent drawing
  • US11320834B2 patent drawing

AI summary

The present application provides methods and systems for mapping, localization, navigation and control and a mobile robot. Through the technical solution of acquiring a first projected image and second projected image of an entity object when the mobile robot moves to a first position and a second position respectively, building a map or localizing the mobile robot based on angle information of the entity object relative to the mobile robot at the first position and at the second position, the first position and the second position, planning a navigation route based on the built map and localization, and controlling the mobile robot to move along the navigation route, position information of the entity object can be determined precisely, and precision of the built map can be improved. Moreover, movement of the mobile robot can be controlled precisely, and operating precision of the mobile robot and human-computer interaction can be improved.