Multi-Sensor Position Detection for Object Reliability Assessment
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Solution Overview
Problem
Existing position detection technologies primarily focus on determining ego vehicle positions but lack accurate detection and reliability assessment of surrounding object positions, relying on limited scene identification and multiple peripheral information detectors, which complicates the determination of reliable object positions.
Innovation Solution
A position detection apparatus and method that utilize multiple peripheral information detectors to acquire relative positions of objects around the ego vehicle, calculate difference amounts between detector pairs, and determine reliability based on these differences to ensure accurate positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple periphery information detectors are used to detect positions of surrounding objects, then the coverage and detection capability are improved, but it becomes difficult to determine the reliability of the detected positions
Solution Approach 1:
The patent changes the parameter of reliability assessment by introducing a quantitative comparison mechanism. It calculates difference amounts between detection results from multiple detectors and uses statistical parameters (mean, standard deviation) to transform qualitative reliability assessment into quantitative evaluation, thereby resolving the difficulty of determining reliability when multiple detectors are used.
Solution Approach 2:
The patent implements a feedback mechanism where detection results from multiple detectors are continuously compared and validated. The system uses the detection results to calculate difference amounts, determines reliability based on these differences, and then uses this reliability information to weight or select the final detection result, creating a closed-loop feedback system that improves reliability determination.
2Reliability
If detection results from multiple periphery information detectors are compared to determine reliability, then the reliability determination accuracy is improved, but the calculation complexity increases
Solution Approach 1:
The patent extracts only the essential comparison operation needed for reliability determination. Instead of performing complex comprehensive analysis of all detection parameters, it focuses on calculating difference amounts between corresponding detection results and using simple statistical measures (mean and standard deviation) to determine reliability, thereby reducing calculation complexity while maintaining accuracy.
Solution Approach 2:
The patent simplifies the complexity by changing the parameters used for comparison from raw detection data to processed difference amounts. It transforms the complex multi-dimensional detection results into a simpler one-dimensional difference metric, making the reliability determination computationally more efficient while preserving the essential comparison function.
3Measurement precision
If all detected object parts from multiple detectors are processed, then the comprehensive detection coverage is improved, but the processing time and computational load increase
Solution Approach 1:
The patent extracts and processes only the detection results from multiple detectors that are relevant for reliability determination. It selectively compares detection results for the same object parts across different detectors, ignoring redundant or unrelated detection data, thereby reducing processing time while maintaining comprehensive detection coverage.
Solution Approach 2:
The patent applies partial action by focusing computational resources on the essential task of comparing detection results for reliability determination rather than processing all possible detection data equally. It performs sufficient comparison operations to establish reliability without unnecessary excessive processing, optimizing the balance between coverage and processing time.
Data Source
AI summary
To provide a position detection apparatus and a position detection method which can determine a reliability of detection positions of peripheral object parts by each periphery information detector by utilizing that the plurality of periphery information detectors are provided. A position detection apparatus calculates a difference amount between the first relative position and the second relative position, for each of pairs of the first relative position and the second relative position in which relative positions correspond with each other; determines a group of a plurality of the difference amounts calculated for the same object, based on a plurality of the difference amounts; and determines whether or not the reliability of the first relative positions and the second relative positions corresponding to the plurality of difference amounts of the same object is high, based on the plurality of difference amounts of the same object.