Projector Stack Projection Control via Master-Slave Alignment
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Solution Overview
Problem
Existing projector control methods for stack projection require complex operation and network setup, making user interaction cumbersome due to the need for multiple projector operations and network environment configuration.
Innovation Solution
A control method for projectors, where one projector is set as a master and the other as a slave, allowing the master to adjust its projection range and control the slave to align its projection range with the master's, simplifying the setup by displaying adjustment marks and guiding the user through lens-shift, zoom, and focus adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional stack projection control methods are used, then multiple projectors can be connected for projection, but the operation becomes complex and network setup becomes cumbersome
Solution Approach 1:
The patent introduces a control device as an intermediary between multiple projectors. This control device receives adjustment operations from the user and automatically transmits corresponding control instructions to the slave projector, eliminating the need for users to directly operate multiple projectors and their network settings. The intermediary simplifies the interface between user intent and system response.
Solution Approach 2:
The slave projector automatically adjusts its projection parameters based on control instructions received from the control device. The system enables self-service operation where the slave projector autonomously aligns its projection range with the master projector without requiring manual configuration by the user, reducing operational complexity.
2Manufacturing precision
If multiple projectors are operated independently for alignment, then projection ranges can be adjusted, but the setup process becomes time-consuming
Solution Approach 1:
The control device pre-establishes the master-slave relationship between projectors before actual projection alignment is needed. By setting up the control linkage in advance and automatically transmitting adjustment instructions, the system eliminates time-consuming manual configuration during the actual setup process, allowing quick alignment when projection is required.
Solution Approach 2:
The system implements feedback mechanisms where the control device monitors the projection state and automatically adjusts the slave projector's parameters based on received operations. This closed-loop control enables precise alignment while reducing the time users need to spend on manual adjustments, as the system actively responds to and corrects alignment deviations.
Data Source
AI summary
A control method for a projector includes coupling a projector to another projector, transmitting first instruction information representing a start of setting of stack projection using the projector and the other projector to the other projector by the projector, setting a first projection range indicating a range in which the projector projects an image for the stack projection, and transmitting second instruction information representing adjustment to make a second projection range indicating a range in which the other projector projects an image coincide with the first projection range to the other projector by the projector.