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
Engineering Contradiction Analysis
1Reliability
If display timing is determined without considering movement speed, then the display system is simple, but the alert effectiveness deteriorates
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.
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.
2Reliability
If display timing is adjusted based on movement speed, then alert effectiveness improves, but the system complexity increases
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.
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.
3Measurement precision
If images are displayed without considering movement speed, then the system is simple to operate, but the timing appropriateness deteriorates
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.
4Measurement precision
If movement speed detection is implemented, then display timing accuracy improves, but the number of components increases
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.
Data Source
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.


