Radar Sensor Initial Direction Estimation Using Stored Movement Data
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Solution Overview
Problem
Existing systems face challenges in accurately estimating the direction of movement for newly detected objects, leading to potential inconsistencies in vehicle control systems, particularly when radar sensors are used, as they lack initial movement information, resulting in possible false alarms or incorrect maneuvers.
Innovation Solution
A device and method that utilize a detection unit, memory, and computing unit to store and provide information on previous object positions and directions of movement, allowing for an improved initial direction estimation of newly detected objects by referencing similar movements at identical positions, reducing discrepancies between calculated and actual directions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a fixed initial direction of movement is allocated to all newly detected objects, then the device complexity is reduced, but the measurement precision of the direction of movement deteriorates
Solution Approach 1:
The system performs preliminary actions by storing direction of movement information from previously detected objects in a memory unit before new objects are detected. When a new object is detected, the computing unit retrieves and assigns an initial direction of movement based on stored data from objects at the same position, avoiding the need for complex real-time calculations while improving accuracy.
2Loss of information
If no initial direction of movement information is used for newly detected objects, then the loss of information is minimized, but the reliability of the detection system deteriorates
Solution Approach 1:
The system creates a copy of direction of movement information from previously detected objects and assigns it to newly detected objects. The memory unit stores this information, and the computing unit retrieves and applies it as an initial estimate, reducing information loss while maintaining system reliability through accurate initial direction estimation.
3Loss of time
If the initial direction of movement is calculated without using stored information, then the processing time is reduced, but the manufacturing precision of the direction estimation deteriorates
Solution Approach 1:
The system performs preliminary actions by pre-storing direction of movement information from previously detected objects in the memory unit. When a new object is detected, the computing unit quickly retrieves this pre-prepared information and assigns it as the initial direction of movement, achieving both fast processing and high precision without requiring complex real-time calculations.
Data Source
AI summary
An estimated initial direction of movement of a newly-detected object is to be determined. The actual previous directions of movement and positions of previously-detected objects are determined and stored. When a newly-detected object is newly detected at a certain position, then the actual previous direction of movement of one of the previously-detected objects at that position is used as a basis to determine the estimated initial direction of movement of the newly-detected object at that position.