Master-Subordinate Projector Control for Stack Alignment
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Solution Overview
Problem
Existing projector systems for stack projection face challenges in achieving high accuracy and efficiency due to complex control requirements, increased processing time, and reduced controllability, especially when dealing with multiple projectors and dynamic positional relationships.
Innovation Solution
A projector system with a control section that transmits control signals to coordinate the operation of other projectors, allowing for enhanced controllability and efficient image correction, including the use of a master control section and subordinate control sections to manage projection images and user operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If separate control is performed for each projector in stack projection, then individual projector correction can be achieved, but system complexity and control difficulty increase dramatically
Solution Approach 1:
The patent combines multiple projectors into a single integrated system where one projector (master) controls all other projectors (subordinates). This merging approach consolidates the control architecture, reducing system complexity while maintaining alignment accuracy through unified coordinate pattern projection and correction execution.
Solution Approach 2:
The master projector acts as an intermediary that generates and transmits control signals to subordinate projectors. This intermediary role simplifies the control structure by eliminating the need for each projector to independently process correction data, thereby reducing overall system complexity while achieving precise alignment.
2Measurement precision
If correction is performed separately for each projector, then individual correction accuracy can be maintained, but processing time increases dramatically
Solution Approach 1:
The master projector performs preliminary actions by generating control signals and correction data in advance, which are then transmitted to subordinate projectors. This preliminary action allows all projectors to execute corrections simultaneously rather than sequentially, significantly reducing total processing time while maintaining correction accuracy.
Solution Approach 2:
The system maintains continuous useful action by having the master projector continuously generate and transmit control signals to subordinate projectors during the correction process. This continuous coordination enables parallel processing across all projectors, reducing overall correction time while preserving accuracy through uninterrupted signal transmission and execution.
3Adaptability or versatility
If multiple projectors operate independently, then system flexibility is maintained, but coordination control becomes difficult
Solution Approach 1:
The master projector serves multiple functions: it projects images, generates control signals, transmits coordination commands, and receives feedback from subordinate projectors. This multi-functionality enables unified control of the entire stack projection system while maintaining operational flexibility, as the master projector can adapt its control signals to various projector configurations and scenarios.
Data Source
AI summary
An image display system includes a first projector and a second projector, and makes the first projector and the second projector operate in cooperation with each other to form a single projection image on a common screen. The first projector and the second projector are connected to each other via a signal line. A master control section of the first projector transmits a control signal to a subordinate control section of the second projector. The subordinate control section of the second projector controls a projection section of the second projector based on the control signal. Thus, the controllability of the image display system provided with a plurality of projectors is enhanced.