Laser Projector Control via Multi-Parameter Monitoring
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Solution Overview
Problem
Laser projectors require effective monitoring of operating parameters to ensure normal operation and prevent failures, such as overheating or misalignment, which can lead to irreversible damage or safety hazards, but existing systems lack comprehensive and timely detection methods.
Innovation Solution
An apparatus and method that obtain and compare operating parameters like rotation speed, temperature, light brightness, and driving current with preset values, determining failure and outputting alerts to prevent startup or reduce laser output when abnormalities are detected, using sensors and feedback circuits to ensure the projector operates within safe and efficient conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If comprehensive monitoring of operating parameters is implemented, then reliability is improved, but device complexity increases
Solution Approach 1:
The patent combines multiple detection functions (temperature detection, rotation speed detection, light brightness detection, driving current detection) into a unified monitoring system that operates through a single control unit. This merging approach improves reliability by comprehensively monitoring all critical parameters while avoiding the complexity of multiple separate monitoring systems.
Solution Approach 2:
The patent implements feedback mechanisms where detection units continuously monitor operating parameters and feed this information to the control unit. The control unit compares detected values with preset ranges and provides feedback to adjust or shut down the laser projector when abnormalities are detected, thereby improving reliability through continuous monitoring and automatic protection.
2Object-affected harmful factors
If timely detection and prevention measures are implemented, then safety is improved, but loss of time in normal operation increases
Solution Approach 1:
The patent performs preliminary detection of operating parameters before the laser projector enters full operation. The control unit checks temperature, rotation speed, light brightness, and driving current against preset ranges prior to allowing the laser to light up. This preliminary action ensures safety by preventing operation under abnormal conditions while minimizing time loss through efficient batch detection.
3Measurement precision
If multiple operating parameters are monitored, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent divides the monitoring system into specialized detection units, each responsible for detecting specific operating parameters (temperature, rotation speed, light brightness, driving current). Each detection unit focuses on its specific parameter with high precision, while the control unit coordinates them. This segmentation achieves comprehensive precise measurement without requiring a single overly complex detection system.
Data Source
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AI summary
An apparatus for controlling a laser projector (101-103) comprising: an obtaining module (1001) configured to obtain an operating parameter of the laser projector (101-103) in operation; a judging module (1002) configured to compare the obtained operating parameter with a preset parameter, and to judge whether the laser projector fails, wherein the preset parameter is a parameter of the laser projector (101-103) which is operating normally; and a determining module (1003) to determine failure information of the laser projector (101-103) according to a result of a comparison when the judging module (1002) judges that a failure occurs; and corresponding method for controlling a laser projector (101-103).