RFID Book Shelving Robot with Omni-Directional Navigation

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

There is a lack of fully automatic and intelligent book checking and shelving robots in libraries, which hinders efficient book management and inventory control.

Innovation Solution

An automatic and intelligent book checking and shelving robot is developed using RFID technology, equipped with a controllable lifting device, four-wheel omni-directional mobile platform, and navigation sensors, allowing for real-time book information sensing and optimal path planning for both checking and shelving operations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If manual book checking and shelving methods are used, then operational simplicity is maintained, but productivity and efficiency are low

Engineering Contradiction:
Improvebook checking and shelving efficiencyVSAvoidrobot system complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The robot system is divided into functional modules: mobile platform, lifting device with RFID antennas, navigation system, and control unit. Each module performs a specific function, allowing the complex task of automated book management to be broken down into manageable components that can be independently optimized and maintained.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The robot integrates multiple functions into a single system: RFID-based book identification, navigation to target locations, lifting mechanism for reaching different shelf heights, and automated placement. This multi-functionality eliminates the need for separate manual operations while managing complexity through integrated control.

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

2Productivity

If RFID technology is implemented for automatic book identification, then productivity increases, but device complexity and cost increase

Engineering Contradiction:
Improvebook identification speedVSAvoidRFID system complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

Books are equipped with RFID tags that automatically transmit their identification information when the robot's RFID antenna passes nearby. The system performs self-identification without requiring manual scanning or additional intervention, enabling rapid book recognition and database matching that significantly improves productivity.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The manual mechanical process of visually identifying and locating books is replaced with RFID electromagnetic field-based identification. The RFID antenna automatically detects book tags wirelessly, eliminating the need for manual visual search and physical handling during the identification phase, thereby increasing speed and reducing labor.

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

3Productivity

If multi-layer bookshelf access is implemented, then productivity improves, but device complexity and safety requirements increase

Engineering Contradiction:
Improvemulti-layer book access capabilityVSAvoidlifting device complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The lifting device is designed with dynamic height adjustment capability, allowing the RFID antenna and book placement mechanism to move vertically to access books on different shelf levels. This dynamic positioning system enables the robot to service multi-layer bookshelves efficiently while maintaining controlled operation through motorized actuation and position feedback.

Inventive Principle:
Principle #15Dynamics

4Productivity

If automated navigation system is added, then productivity increases, but device complexity and initial cost increase

Engineering Contradiction:
Improveautonomous movement efficiencyVSAvoidnavigation system complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The navigation system uses intermediate markers or reference points in the library environment to guide the robot's movement. The laser navigation sensor detects these references to calculate position and plan paths, allowing autonomous navigation without requiring complex artificial intelligence or extensive sensory arrays, thus managing system complexity while maintaining productivity benefits.

Inventive Principle:
Principle #24Intermediary (Mediator)

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

The robot significantly enhances book checking and shelving efficiency by enabling automatic identification, location, and placement of books across multiple layers, improving inventory management and reducing manual labor.

Implementation Method 1

Radio frequency identification RFID (Radio Frequency Identification) technology, also known as wireless radio frequency identification, is a communication technology that identifies specific targets and reads and writes relevant data via radio signals

Methodology Applied
Scientific EffectRFID (Radio Frequency Identification): Electromagnetic Induction

Implementation Method 2

a laser navigation sensor connected with the four-wheel omni-directional mobile platform is arranged in the bottom inner cabin

Methodology Applied
Scientific EffectLaser: Laser

Implementation Method 3

a magnetic navigation sensor is arranged at the bottom of the four-wheel omni-directional mobile platform

Methodology Applied
Scientific EffectMagnetic field sensing: Magnetic Field

Data Source

PatentUS10279477B2Automated smart book inventory and shelving robot based on RFID technology
Publication Date: 2019.05.07 NANJING UNIV
  • US10279477B2 patent drawing
  • US10279477B2 patent drawing
  • US10279477B2 patent drawing

AI summary

An automatic and intelligent book checking and shelving robot based on the RFID technology, including an RFID system used for identifying book information, a controllable lifting device used for checking books, a navigation sensor for providing a locating navigation function and a four-wheel omni-directional mobile platform for driving the equipment to move. The present invention mainly uses the automatic identification technology and the radio frequency phase technology in the RFID technology, and the machine automation technology to realize an automatic and intelligent book checking and shelving function, including an automatic whole-library book checking function and an automatic whole-library book shelving function.