Target-Correlated Laser Rangefinder Jitter Compensation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Human jitter affects the accuracy of rangefinder devices, particularly at long ranges, leading to incorrect distance measurements due to difficulty in maintaining the aim-point on a target.
Innovation Solution
A viewing or telescopic device equipped with a laser rangefinder circuit and sensors that capture range data and orientation information, allowing a controller to automatically determine the target range by correlating orientation data with range values, thereby compensating for human jitter.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a laser rangefinder is used to measure distance to a distant target, then the range measurement capability is provided, but human jitter causes the aim-point to move off the target, resulting in incorrect range measurements
Solution Approach 1:
The patent introduces an intermediary system consisting of orientation sensors and a controller that mediates between the user's manual aiming and the range measurement. The sensors detect the actual orientation of the device, and the controller uses this information to identify which range measurement corresponds to the intended target, even when the aim-point has drifted due to human jitter.
Solution Approach 2:
The system implements feedback by continuously monitoring the orientation data from sensors and comparing it with the intended target direction. This feedback loop allows the controller to automatically identify and select the correct range measurement that corresponds to the target, compensating for deviations caused by human jitter without requiring the user to maintain perfect aim.
2Reliability
If multiple range measurements are taken to account for human jitter, then the probability of obtaining an accurate measurement increases, but the time required to acquire a valid range measurement increases
Solution Approach 1:
The patent applies preliminary action by continuously capturing orientation data before, during, and after range measurements are taken. This pre-captured orientation information is stored and later used by the controller to quickly identify which range measurement corresponds to the target, eliminating the need for time-consuming manual verification or repeated measurements.
Solution Approach 2:
The system performs self-service by automatically processing multiple range measurements and orientation data to identify the correct target range. The controller autonomously analyzes the correlation between orientation changes and range measurements, selecting the accurate measurement without requiring additional user input or manual intervention, thus reducing time loss while maintaining reliability.
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 enables precise range determination to a target by accurately mapping orientation data to range values, reducing errors caused by human movement and ensuring accurate distance measurement even at long ranges.
Implementation Method 1
measuring the time taken by the pulse to be reflected off the target and returned to the sender
Implementation Method 2
the pulse to be reflected off the target and returned
Data Source
AI summary
A viewing device includes a laser rangefinder circuit configured to capture range data associated with a target within a view area and at least one sensor configured to capture orientation data associated with an aim-point of the laser rangefinder circuit concurrently with capturing the range data. The viewing device further includes a controller coupled to the laser rangefinder and to the at least one sensor and configured to automatically determine a range to the target from the range data based on the orientation data and a target location within the view area.