Vehicle Defile Width Calculation Using Laser Sensor
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Solution Overview
Problem
Drivers face challenges in navigating vehicles through defiles, particularly in narrow spaces, due to blind spots that cannot be seen using conventional mirrors or direct vision, leading to potential accidents.
Innovation Solution
An apparatus and method utilizing a single sensor, such as a laser sensor, to model the defile in front of the vehicle by calculating the defile width based on angles and sensing data, generating virtual segments, and outputting a driving guide to ensure safe navigation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If conventional mirrors (side mirror or rearview mirror) or naked eye are used to recognize surrounding area, then the driver can see the visible area, but blind spots exist in the front or rear sides of the vehicle where the driver cannot see
Solution Approach 1:
The patent replaces the mechanical visual inspection system (mirrors and naked eye) with an optical sensing system (laser sensor). The laser sensor emits laser beams to actively scan and detect obstacles in blind spots, converting passive visual observation into active optical detection that can penetrate and map areas invisible to human vision and mirrors.
Solution Approach 2:
The patent introduces laser beams as an intermediary between the sensor and obstacles. The laser beams serve as a mediator to illuminate and detect objects in blind spots, enabling the system to 'see' around corners and in areas that would otherwise be completely invisible to direct vision or mirrors.
2Measurement precision
If multiple sensors are used to accurately recognize defile and eliminate blind spots, then detection precision improves, but device complexity increases
Solution Approach 1:
The patent makes a single laser sensor perform multiple functions: it detects obstacles in blind spots, calculates defile width, determines vehicle position relative to defile, and provides guidance information. By making one sensor multi-functional through sophisticated signal processing and geometric calculations, the system achieves high measurement precision without increasing sensor quantity.
Solution Approach 2:
The patent changes the operational parameters of the laser sensor, specifically the angle at which laser beams are emitted relative to the vehicle's longitudinal axis. By adjusting this emission angle and calculating the intersection points of laser beams with obstacles, the system can derive defile width and position information from a single sensor's data.
3Device complexity
If the driver directly uses the naked eye to recognize the surrounding situation, then no additional device is needed, but blind spots cannot be detected and fender benders or vehicle damage can occur
Solution Approach 1:
The patent replaces the biological visual system (naked eye) with an optical detection system (laser sensor). The laser sensor can detect obstacles beyond the limits of human vision, including areas in blind spots, providing enhanced reliability for accident prevention while maintaining relatively simple system architecture.
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
The solution effectively identifies and calculates the defile width, reducing driver burden and enhancing vehicle safety by providing accurate driving guidance through the use of a single sensor, thereby minimizing the risk of accidents in tight spaces.
Implementation Method 1
a sensor including a laser sensor disposed in front of the vehicle
Data Source
AI summary
An apparatus and a method for driving control of a vehicle include a sensor including a laser sensor disposed in front of the vehicle A controller is configured to calculate a defile width in front of the vehicle based on an angle between a reference segment and an inference segment by recognizing sensing data passing through a reference point at which a virtual standard segment is in contact with the inference segment and a reference segment after confirming a position of an obstacle positioning in front of the vehicle using the sensing data received from the sensor. The controller generates the virtual standard segment for the obstacle based on the confirmed position and generates the inference segment which is perpendicular to the virtual standard segment. An output outputs a driving guide to the calculated defile under control of the controller.