Remote Weapon Range Finder Verification via Image Tracking
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Solution Overview
Problem
Remote weapon systems face challenges in maintaining reliable range measurement values due to disturbances and obstructions, leading to difficulties in distinguishing true and false measurement values when tracking targets with image tracking devices mounted on mobile platforms or static platforms.
Innovation Solution
An operating device with a processor that filters wrong measurement values by confirming tracking images, determining target lock status, assessing laser beam hits, and adjusting tracking gate sizes, using techniques like image correlation and hit rate calculations to classify and display range-measurable shapes, and replacing incorrect measurements with previous valid values.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the remote weapon frequently measures ranges with a laser range finder, then range measurement capability is improved, but the difficulty in distinguishing true values from false values increases due to disturbances and obstructions
Solution Approach 1:
The system uses feedback from the image tracking device to verify range measurement values. The processor compares the measured range with the distance calculated from image data and tracking gate position, accepting or rejecting range values based on this feedback to filter out false measurements caused by disturbances or obstructions
Solution Approach 2:
The patent introduces an intermediary verification mechanism using image correlation values and tracking gate data as a mediator between the laser range finder and the final range measurement output. This intermediary layer validates whether a measured range corresponds to an actual target rather than false readings from obstructions or disturbances
2Adaptability or versatility
If the image tracking device tracks a target on a mobile platform with 3-axis disturbances, then tracking capability is maintained, but the stability of aiming at the target deteriorates
Solution Approach 1:
The system applies counterbalancing through coordinate transformation and stabilization algorithms that compensate for 3-axis disturbances (roll, pitch, yaw). The processor calculates compensation values based on platform motion data and applies them to maintain stable aiming coordinates despite mobile platform movements
Solution Approach 2:
The patent implements dynamic adaptation by continuously adjusting the tracking gate position and size based on real-time image correlation data and platform motion. The system dynamically updates aiming parameters to maintain stable target acquisition despite changing platform conditions
3Measurement precision
If obstructions appear in front of the target or the target deviates from the aiming point, then the complexity of detecting and measuring true range increases, but the need for accurate range measurement remains
Solution Approach 1:
The system performs preliminary validation of range measurements by checking image correlation values and tracking gate lock status before accepting a range value. This preliminary action filters out measurements taken when obstructions are present or the target is not properly locked, preventing false values from being recorded
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
Enhances the reliability of range measurement values by accurately differentiating true and false measurements, improving tracking performance and reducing errors caused by internal and external disturbances and obstructions.
Implementation Method 1
a remote weapon device that is mounted on a mobile platform, a mobile vehicle, a mobile robot, or a mobile aircraft to perform range measurements with a laser range finder
Implementation Method 2
confirm a tracking image at each firing time point of a laser beam transmitted by the range finder
Data Source
AI summary
An operating device and method for remotely controlling an arming device. The method includes confirming a tracking image at each firing time point of a laser beam transmitted by the range finder; based on an image correlation value of a target locked on by a tracking gate in the tracking image exceeding a threshold value, determining that the target is normally locked on; determining whether the laser beam from the range finder hits the target determined as being normally locked on based on a center value of the tracking image and a center value of the tracking gate; and based on the laser beam from the range finder hitting the target normally locked on, determining a range measurement value measured by the range finder as a true value of the target and determining other range measurement values as wrong measurement values.