Vehicle Sensor Vertical Alignment Adjustment Mechanism
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Solution Overview
Problem
Vehicle sensors, such as radar sensors, face positional changes or directional distortions due to collisions or vehicle wear, leading to impaired functionality in intelligent vehicle systems, particularly in vertical alignment, which cannot be automatically corrected, necessitating manual service.
Innovation Solution
An apparatus that automatically adjusts the vertical alignment of vehicle sensors by using a ground-reflected wave measuring unit, a target sensing distance measuring unit, and a vertical misalignment determining unit, coupled with a tilting motor and antenna switching mechanism to correct vertical misalignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual service is used to adjust vertical sensor alignment, then alignment precision can be maintained, but service time and operational complexity increase
Solution Approach 1:
The sensor system automatically detects its own vertical misalignment by measuring ground-reflected wave signal intensity and performs self-correction by switching between transmitting antennas with different vertical angles, eliminating the need for manual service intervention
Solution Approach 2:
The system continuously monitors the signal intensity of ground-reflected waves and uses this feedback to determine whether vertical misalignment exists, then automatically adjusts the antenna selection to correct the alignment, creating a closed-loop control system
2Adaptability or versatility
If multiple transmitting antennas with different vertical angles are used, then vertical alignment adjustment capability is improved, but device complexity increases
Solution Approach 1:
The transmitting antenna system is divided into multiple independent antennas, each with a different fixed vertical angle, allowing the system to select the most appropriate antenna based on the detected misalignment condition
Solution Approach 2:
The system dynamically switches between different transmitting antennas based on real-time detection of vertical misalignment, making the antenna configuration adaptable rather than static
3Productivity
If automatic vertical alignment adjustment is implemented, then service frequency is reduced, but measurement and control complexity increases
Solution Approach 1:
The system uses ground-reflected waves as an intermediary to indirectly detect vertical misalignment, measuring the signal intensity of waves reflected from the ground to infer the sensor's angular deviation without requiring direct angular measurement
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
Enables the automatic correction of vertical sensor alignment, ensuring accurate sensor function and safe vehicle operation by determining and adjusting the sensor's position to maintain optimal performance.
Implementation Method 1
a ground-reflected wave measuring unit for measuring the signal intensity of ground-reflected waves on the basis of received reflected waves for sensor signals transmitted from the sensor
Data Source
AI summary
Disclosed are a sensor, the vertical alignment of which can be adjusted, and a vertical sensor-alignment adjustment apparatus using the same. In particular, in order to allow the vertical alignment to be adjusted, the sensor has a construction including a plurality of switchable transmitting antennas or a plurality of switchable receiving antennas or a construction including a tilting motor for adjusting an transmitting angle or a receiving angle. The vertical sensor-alignment adjustment apparatus employing such a sensor determines whether the sensor is misaligned in terms of its vertical alignment, and corrects the vertical misalignment of the sensor by executing variable switching to one of the transmitting antennas, by executing variable switching to one of the receiving antennas, or by controlling the tilting motor, so that the transmitting angle of sensor signals or the receiving angle of reflected waves for the sensor signals can be adjusted.