Sensor-Based Display Timing Control for Human Movement Speed

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Solution Overview

Problem

Existing display systems for projectors fail to accurately determine the appropriate timing and content for displaying images to humans based on their movement speed, leading to ineffective alerts.

Innovation Solution

A display method and system that utilize sensors to detect movement speed from a first position to a second position, determining image content and display timing based on this data, and projecting the image at a third position using a display apparatus, ensuring the image is displayed with appropriate timing and content.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If display timing is determined without considering movement speed, then the display system is simple, but the alert effectiveness deteriorates

Engineering Contradiction:
Improvealert effectivenessVSAvoiddisplay system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system performs preliminary detection of the human figure's movement speed before determining display timing. The sensor detects movement speed in advance, and the control device uses this pre-acquired information to determine appropriate display timing, ensuring alert effectiveness without adding complex real-time adjustment mechanisms.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system establishes a feedback loop where the sensor continuously detects movement speed and feeds this information back to the control device. The control device adjusts display timing based on this feedback, creating a closed-loop system that maintains reliability while managing complexity through systematic information flow.

Inventive Principle:
Principle #23Feedback

2Reliability

If display timing is adjusted based on movement speed, then alert effectiveness improves, but the system complexity increases

Engineering Contradiction:
Improvealert effectivenessVSAvoidcontrol mechanism complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The control device performs multiple functions: it acquires movement speed information from the sensor, determines image content based on movement speed, and determines display timing based on movement speed. By consolidating these functions in a single control device, the system achieves improved alert effectiveness while minimizing the increase in overall system complexity.

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

Solution Approach 2:

The system changes the timing parameter of image display based on the movement speed parameter detected by the sensor. When movement speed is high, the system adjusts display timing to occur earlier or for a longer duration, ensuring the alert is effective. This parameter-based control approach manages complexity by using straightforward parameter relationships rather than complex control logic.

Inventive Principle:
Principle #35Parameter changes

3Measurement precision

If images are displayed without considering movement speed, then the system is simple to operate, but the timing appropriateness deteriorates

Engineering Contradiction:
Improvetiming accuracyVSAvoidsystem operation simplicity
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The display system automatically adjusts timing based on detected movement speed without requiring manual intervention. The sensor and control device work together to self-determine appropriate timing, eliminating the need for operators to manually adjust settings while achieving precise timing accuracy.

Inventive Principle:
Principle #25Self-service

4Measurement precision

If movement speed detection is implemented, then display timing accuracy improves, but the number of components increases

Engineering Contradiction:
Improvetiming accuracyVSAvoidcomponent count
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The control device merges the functions of movement speed analysis and display timing determination into a single component. Rather than having separate components for speed detection, speed analysis, and timing control, the system combines these functions, reducing the overall component count while maintaining timing accuracy.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS20230388459A1Display method and display system
Publication Date: 2023.11.30 SEIKO EPSON CORP
  • US20230388459A1 patent drawing
  • US20230388459A1 patent drawing
  • US20230388459A1 patent drawing

AI summary

A display method includes acquiring output corresponding to a movement speed of a human from a first position to a second position using at least one sensor, determining an image according to a content used for alert based on the output corresponding to the movement speed, determining timing of display of the image based on the output corresponding to the movement speed, and displaying the image with the timing in a third position using a display apparatus, wherein the second position is located between the first position and the third position.