Weight-Based Chess Piece Identification via Buoyancy Sensing

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Solution Overview

Problem

Existing intelligent chess-like game board technologies face challenges in accurately identifying the identity and position of game pieces, often requiring manual determination and leading to complex and costly touch-sensing structures.

Innovation Solution

An apparatus and method utilizing a weight sensing chip circuit, a photoelectric sensing component, and a solution buoyancy module to calculate the weight of game pieces based on buoyant force, thereby determining their identity and position on the board.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If reflected light sensors or Hall sensors are used to detect piece position, then position detection can be achieved, but piece identity cannot be correctly identified and manual determination is required

Engineering Contradiction:
Improvepiece identity identification accuracyVSAvoidautomated piece identification
Core Design Contradiction:
Measurement precisionVSExtent of automation

Solution Approach 1:

The patent replaces optical and magnetic sensing systems with a weight-based sensing system. Each chess piece is assigned a unique weight, and a weight sensor under each square measures the actual weight to automatically identify both the piece identity and its position, eliminating the need for manual determination and achieving full automation

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

Solution Approach 2:

The patent changes the detection parameter from optical/magnetic properties to physical weight. By assigning distinct weight values to different chess pieces and using weight sensors to measure these parameters, the system achieves accurate automated identification of piece identities without requiring complex optical or magnetic detection systems

Inventive Principle:
Principle #35Parameter changes

2Measurement precision

If touch sensing methods are used to identify piece position and path, then position detection is possible, but the overall structure becomes complex and costly

Engineering Contradiction:
Improvepiece position identification accuracyVSAvoidtouch sensing structure complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent extracts the weight sensing function from a complex touch sensing system. Instead of using multiple sensors and complex processing circuits for touch detection, the system uses simple weight sensors that directly measure the mass of chess pieces, significantly reducing structural complexity and cost while maintaining accurate position identification

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent employs inexpensive weight sensors rather than complex touch sensing systems. The weight-based approach uses simple, cost-effective components that can accurately detect piece positions and identities without requiring expensive electronics or complex signal processing circuits

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

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 solution enables accurate and automated identification of game piece identities and positions, improving teaching efficiency and reducing the complexity and cost of touch-sensing structures.

Implementation Method 1

a liquid cavity including a solution and a buoyancy plate... calculate the weight of the piece based on buoyant force

Methodology Applied
Scientific EffectBuoyant force: Archimedes' Principle (Buoyancy)

Data Source

PatentUS20250065216A1Apparatus and method for identifying identity and position of chess-like game piece by means of weight
Publication Date: 2025.02.27 WENG YAN
  • US20250065216A1 patent drawing
  • US20250065216A1 patent drawing
  • US20250065216A1 patent drawing

AI summary

An apparatus and a method for identifying the identity and position of a chess-like game piece by means of weight are provided. By means of a solution buoyancy module, a photoelectric sensing component, and a weight sensing chip circuit in the apparatus, the weight of the piece is calculated based on buoyant force, and the identity of the piece and the real-time position thereof on a board are determined based on the calculated weight.