In-Vehicle Sensor Angle Control for Uphill Range Detection
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Solution Overview
Problem
The detection range of sensors in vehicles is narrowed on uphill slopes due to electronic waves hitting the ground close to the vehicle, and existing technologies do not adjust the detection range effectively when distance data cannot be obtained, leading to reduced sensing capabilities.
Innovation Solution
A sensor control apparatus that adjusts the radiation angles of signals from an in-vehicle sensor based on the relationship between radiation angles and measurement results, increasing the detection range by changing the radiation density and angles when an uphill slope is detected.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the detection range is adjusted upward on uphill slopes, then the detection range is improved, but the device complexity increases
Solution Approach 1:
The patent applies dynamics by making the detection range adjustable rather than fixed. The sensor control unit dynamically changes the detection range based on detected slope conditions, allowing the system to adapt to different terrain scenarios. This resolves the contradiction by enabling improved detection range when needed while maintaining simpler operation during normal conditions.
Solution Approach 2:
The patent changes the detection range parameter based on slope detection results. When an uphill slope is detected, the system modifies the detection range parameter to extend upward, compensating for the narrowed effective detection range caused by the slope. This parameter adjustment resolves the contradiction without requiring additional hardware complexity.
2Area of stationary object
If the radiation angles of signals are adjusted, then the substantial detection range is improved, but the control complexity increases
Solution Approach 1:
The patent implements feedback by using measurement results from the in-vehicle sensor to adjust radiation angles in subsequent operations. The sensor control unit receives feedback about detection quality and slope conditions, then automatically adjusts radiation angles to optimize detection. This feedback mechanism resolves the contradiction by enabling improved detection range through automated adjustment rather than complex manual control.
Solution Approach 2:
The sensor control system performs self-adjustment based on its own measurement results. The system monitors its detection performance and automatically modifies radiation angles without external intervention, making the control process self-service rather than requiring complex external control mechanisms.
3Reliability
If the detection range is extended upward, then the detection capability is improved, but the energy consumption increases
Solution Approach 1:
The patent applies partial action by extending the detection range upward only when and where needed - specifically when uphill slopes are detected. Rather than continuously operating at maximum range, the system adjusts the detection range partially based on actual terrain requirements. This resolves the contradiction by improving detection capability only when necessary, thereby avoiding unnecessary energy consumption during normal flat-terrain operation.
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
This approach effectively increases the substantial detection range of sensors on uphill slopes, allowing for accurate detection of objects even when the lower part of the detection range overlaps with the ground or is in midair, thereby enhancing sensing capabilities without requiring a new mechanism or device.
Implementation Method 1
a measurement result of an in-vehicle sensor that measures a distance by observing reflected waves of the plurality of signals
Data Source
AI summary
An in-vehicle sensor (10) measures a distance by observing reflected waves of a plurality of signals having radiation angles that are different from each other at least in a perpendicular direction. In a sensor control apparatus (11), a ground detection unit (20) detects the ground based on a measurement result of the in-vehicle sensor (10). A sensor control unit (40), according to a relationship between radiation angles of a plurality of signals from the in-vehicle sensor (10), and the measurement result of the in-vehicle sensor (10), adjusts, of these plurality of signals, radiation angles of at least some signals next time when the at least some signals are radiated from the in-vehicle sensor (10).