TOF Light Output Control for Concentration Hazard Prevention
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Solution Overview
Problem
Existing technologies that output light for information acquisition, such as Time of Flight (TOF) methods, may cause safety issues due to unexpected light output, necessitating a method to control the light output for safety purposes.
Innovation Solution
A light outputting device comprising a light source, a receiver, and a processor that controls the light output by comparing the recognized area of an object with a reference area, and adjusts or turns off the light output when the difference exceeds a preset value.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If light is outputted for information acquisition (TOF technology), then measurement capability is improved, but safety hazards may occur due to unexpected light concentration
Solution Approach 1:
The system performs preliminary actions by storing reference area information corresponding to various distances before actual measurement. When an object is detected, the processor retrieves the pre-stored reference area for that distance and compares it with the actual recognized area, enabling rapid safety assessment without delaying the measurement process.
Solution Approach 2:
The system implements feedback by continuously monitoring the recognized area of the object and comparing it with the reference area. When the recognized area deviates from the reference area beyond a threshold, the system provides feedback by controlling the light source to reduce or stop light output, thereby preventing potential safety hazards while maintaining measurement functionality.
2Object-affected harmful factors
If light output is controlled to prevent concentration, then safety is improved, but measurement efficiency may be reduced
Solution Approach 1:
The system applies partial action by controlling the light source selectively - reducing or stopping light output only when the recognized area deviates from the reference area beyond a preset threshold. When the area difference is within the threshold, normal light output is maintained, thus preserving measurement efficiency while ensuring safety when needed.
Solution Approach 2:
The system changes the operational parameters of the light source dynamically based on the area comparison result. When safety is compromised (area difference exceeds threshold), the light output parameter is reduced or stopped. When safety is maintained (area difference within threshold), normal light output parameters are used, optimizing both safety and efficiency.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively ensures the safe output of light by preventing unintended concentration of light, thereby enhancing user safety and preventing potential hazards.
Implementation Method 1
a receiver for receiving a light being reflected from the object
Data Source
AI summary
An embodiment provides a method and a device for outputting a light, which can output a light in a safe manner. Specifically, disclosed are a method and a device for outputting a light, which control an output light to prevent the output light from being concentrated on a specific area.