Puzzle Block Marker System for On-Vehicle Camera Calibration

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

The current on-vehicle camera system calibration process is time-consuming and labor-intensive, requiring multiple technicians and specific measurements for marker placement, which is costly and inefficient.

Innovation Solution

A system and method using puzzle blocks with a connection mechanism to quickly assemble and position markers around a sensor system, eliminating the need for precise measurements by designating perimeter lines and using adjustable spacers and sliders to align with predetermined positions on the vehicle.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If traditional marker placement methods are used with specific measurements, then measurement precision is improved, but time consumption and labor intensity increase

Engineering Contradiction:
Improvemarker placement precisionVSAvoidcalibration time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The marker placement system is divided into modular puzzle blocks that can be independently assembled. Each block contains pre-defined marker positions and connection features, allowing technicians to assemble the calibration structure without complex measurements while maintaining precision through the modular design's inherent geometry.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Markers and their positions are pre-configured within the puzzle blocks during manufacturing. The blocks include pre-marked alignment features and connection mechanisms that automatically ensure correct positioning when assembled, eliminating the need for on-site measurement and calculation.

Inventive Principle:
Principle #10Preliminary action

2Manufacturing precision

If traditional marker placement methods are used with multiple technicians, then manufacturing precision is improved, but device complexity and cost increase

Engineering Contradiction:
Improvemarker placement accuracyVSAvoidcalibration system complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The calibration system is segmented into standardized puzzle blocks that simplify the overall structure. Each block is designed with built-in alignment and connection features that guide assembly, reducing the need for multiple technicians and complex procedures while maintaining placement accuracy.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The puzzle blocks are designed to be self-aligning and self-assembling through their connection mechanisms. The blocks automatically guide themselves into the correct positions and orientations when brought together, reducing reliance on multiple technicians for precise alignment and lowering operational complexity.

Inventive Principle:
Principle #25Self-service

3Productivity

If puzzle blocks with connection mechanism are used, then productivity is improved, but device complexity increases

Engineering Contradiction:
Improvemarker setup speedVSAvoidpuzzle block structure complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The system uses segmented puzzle blocks with standardized connection interfaces. While the blocks themselves have internal complexity, their modular nature and uniform connection mechanisms enable rapid assembly through simple snap-fit or interlocking actions, significantly improving setup speed despite the inherent structural complexity of each block.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS10466027B2System and method for marker placement
Publication Date: 2019.11.05 DENSO TEN AMERICA LTD
  • US10466027B2 patent drawing
  • US10466027B2 patent drawing
  • US10466027B2 patent drawing

AI summary

A system for marker placement includes a plurality of puzzle blocks connectable by a connection mechanism. The plurality of puzzle blocks include a plurality of markers positioned in a predetermined configuration. The puzzle blocks are connected together by the connection mechanism to surround a sensor for calibration of the sensor with the plurality of markers. The puzzle blocks include one or more sizes and have a quantity based on a calibration parameter of the sensor.