Dual-Mode Anti-Vibration Control for Laser Distance Measurement
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Laser rangefinders with optical anti-vibration functions struggle to accurately measure distances when the user's involuntary hand movements cause significant vibration, especially when targeting small and difficult-to-hit objects, leading to reduced hit rates and inaccurate measurements.
Innovation Solution
The apparatus employs a dual-mode distance measurement system with a first and second anti-vibration procedure, allowing for different maximum movement compensation amounts, and includes a mode switch to adapt to varying levels of displacement, ensuring accurate distance measurement by stabilizing the laser beam axis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the optical anti-vibration function is activated to compensate for hand-held vibration, then measurement stability is improved, but the system becomes unable to track moving targets accurately when the user deliberately moves the device
Solution Approach 1:
The patent implements a dynamic anti-vibration control system that adjusts the anti-vibration compensation amount based on real-time detection of device movement. The controller dynamically switches between different compensation levels: high compensation when vibration is detected, and low or zero compensation when deliberate movement is detected, allowing the system to adapt to different operational conditions
Solution Approach 2:
The system uses feedback from movement detection sensors to continuously monitor device position and adjust anti-vibration compensation accordingly. The controller analyzes movement patterns and adjusts the compensation amount in real-time, reducing compensation when deliberate movement is detected while maintaining it during vibration, thus resolving the contradiction between stability and adaptability
2Measurement precision
If the anti-vibration module performs maximum movement compensation to stabilize the laser beam, then measurement precision is improved, but the device complexity increases
Solution Approach 1:
The patent changes the compensation parameter dynamically based on operational conditions. The controller adjusts the maximum movement compensation amount from a first value (high precision mode) to a second value (standard mode), allowing the system to achieve high measurement precision when needed while reducing system complexity and computational load during normal operation
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 dual-mode system enhances measurement accuracy by compensating for user-induced vibrations, enabling precise distance detection even in complex environments with multiple objects, such as a golf course with a flagpole and surrounding obstacles.
Implementation Method 1
The principle of optical anti-vibration is to use the built-in lens or photosensitive element to reversely correct the horizontal or up and down movement of the rangefinder
Implementation Method 2
The laser rangefinder can emit laser pulses to the target object to be ranged and start timing, and stop timing when it receives reflected light. The period of time can be converted into the distance between the laser and the target object
Implementation Method 3
laser rangefinders have replaced traditional ranging methods to become the mainstream of ranging systems
Data Source
AI summary
Apparatuses for detecting distance and methods thereof are provided. First, a first distance measurement mode and a second distance measurement mode can be executed by using an apparatus having a distance measurement capability, and the apparatus has an anti-vibration module. When the first distance measurement mode is executed, the anti-vibration module is electrically connected to perform distance measurement, and a first distance measurement result is obtained, wherein the maximum movement compensation amount of the anti-vibration module is a first value. When the second distance measurement mode is executed, the anti-vibration module is electrically connected to perform distance measurement, and a second distance measurement result is obtained, wherein the maximum movement compensation amount of the anti-vibration module is a second value, and the first value is greater than the second value.