Object Velocity Observation With Threshold-Based Data Validation
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Solution Overview
Problem
Existing observation devices face challenges in accurately calculating the velocity of objects due to degraded sensor detection accuracy, leading to increased errors in velocity calculations.
Innovation Solution
An observation device that includes a controller to calculate velocity based on position information and uses a set threshold to validate the accuracy of the calculated velocity, adjusting the threshold based on factors like sensor type, distance, environmental conditions, and object type to enhance accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If velocity is calculated based on sensor detection results, then velocity information can be obtained, but measurement precision deteriorates due to degraded sensor detection accuracy
Solution Approach 1:
The system calculates acceleration from velocity measurements and feeds this information back to evaluate measurement quality. When acceleration exceeds a threshold, the system identifies this as feedback indicating poor measurement quality and discards the velocity data, thereby resolving the contradiction between obtaining velocity information and ensuring measurement precision.
Solution Approach 2:
Acceleration serves as an intermediary parameter to evaluate the reliability of velocity measurements. Instead of directly trusting sensor-derived velocity, the system uses acceleration as a mediator to assess whether the velocity measurement is reliable, thus resolving the contradiction between velocity availability and measurement precision.
2Productivity
If all calculated velocity data is used, then productivity increases, but measurement precision decreases due to inclusion of inaccurate measurements
Solution Approach 1:
The system extracts and removes inaccurate velocity measurements from the data stream by checking whether calculated acceleration exceeds a threshold. This selective removal maintains productivity by keeping valid data while eliminating precision-degrading inaccurate measurements, directly resolving the contradiction between processing efficiency and measurement accuracy.
Solution Approach 2:
Instead of processing all velocity data equally, the system applies partial action by selectively accepting only those velocity measurements where the corresponding acceleration is within acceptable thresholds. This partial processing approach maintains productivity for valid data while ensuring precision by excluding excessive or inaccurate measurements.
Data Source
AI summary
An observation device includes a controller. The controller is configured to calculate a velocity of an object based on position information of the object and decide whether or not to use the calculated velocity of the object based on a result of a comparison of a value based on the calculated velocity of the object with a set threshold.