Lidar Control Device Irradiance Feedback Safety
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Solution Overview
Problem
Lidar systems pose risks of temporary or permanent damage to humans and devices due to excessive laser beam energy, and existing safety measures rely heavily on operator awareness and professionalism.
Innovation Solution
A method and device for controlling a lidar by obtaining the first irradiation amount or irradiance generated on a laser-irradiated object and adjusting the lidar's operation based on these measurements to prevent damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the laser beam energy is increased to improve detection capability, then the detection range and accuracy are improved, but the risk of damage to humans and devices increases
Solution Approach 1:
The patent implements a feedback control mechanism where the lidar control device continuously monitors the energy level of emitted laser beams and adjusts the emission parameters in real-time based on the detected irradiation amount and irradiance, preventing excessive energy output that could cause damage while maintaining detection accuracy
Solution Approach 2:
The patent dynamically changes the laser emission parameters (energy level, pulse duration, repetition rate) based on real-time environmental conditions and detection requirements, allowing the system to operate at optimal power levels for each specific situation rather than using fixed high-power settings
2Device complexity
If operator awareness and professionalism are relied upon to prevent laser hazards, then no additional control systems are needed, but incidents of laser injury or damage still occur due to personal negligence or lack of awareness
Solution Approach 1:
The patent implements a self-service safety mechanism where the lidar system automatically monitors its own output, calculates irradiation levels, and adjusts its operation to prevent hazardous conditions without requiring external human intervention or complex additional control systems
Solution Approach 2:
The patent performs preliminary safety assessments by calculating predicted irradiation amounts and irradiance levels before laser emission, allowing the system to prevent hazardous operations before they occur rather than reacting to problems after they arise
Data Source
AI summary
The present disclosure provides a method for controlling a lidar device. The method includes obtaining a first irradiation amount or a first irradiance generated by the lidar device on a laser irradiated object; and controlling the lidar device based on the first irradiation amount or the first irradiance.