Road Mark Projection Control for Vehicle Turn Indication
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Solution Overview
Problem
Existing vehicular drawing devices struggle to control the drawing of indication marks on road surfaces effectively in various traffic environments, leading to potential misunderstandings or safety issues due to inappropriate timing or placement of the marks.
Innovation Solution
A vehicular drawing device that uses a combination of GPS, navigation, camera, sensors, and communication systems to control the drawing of indication marks based on the vehicle's position, surrounding environment, and operational conditions, such as the presence of oncoming vehicles or lane changes, to ensure accurate and safe communication of the vehicle's direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If an indication mark is drawn on the road surface to notify traveling direction, then the traveling direction can be easily recognized by other vehicles and pedestrians, but misunderstandings or safety issues may occur due to inappropriate timing or placement of the marks
Solution Approach 1:
The patent applies dynamics by making the drawing device dynamically adjust its operation based on real-time detection of surrounding vehicles and environmental conditions. The control unit receives detection results and dynamically controls the drawing unit to start or stop drawing indication marks, ensuring the marks are drawn only when appropriate and not when they would cause misunderstandings or safety issues.
Solution Approach 2:
The patent implements feedback through a detection unit that continuously monitors the surrounding environment and feeds this information back to the control unit. The control unit uses this feedback to determine whether to draw indication marks, creating a closed-loop control system that adapts to changing traffic conditions and prevents inappropriate marking that could cause safety issues.
2Duration of action of stationary object
If the drawing device operates continuously to maintain visibility, then the indication mark remains visible at all times, but it may cause confusion or safety issues in certain traffic situations such as when oncoming vehicles are present
Solution Approach 1:
The patent applies periodic action by controlling the drawing unit to operate intermittently rather than continuously. The drawing is activated only during specific periods when the detection unit confirms safe conditions, and deactivated during periods when oncoming vehicles or other hazardous conditions are detected, thus maintaining visibility when appropriate while preventing confusion or safety issues.
Solution Approach 2:
The patent extracts the harmful aspect of continuous operation by separating the drawing function into conditional activation. The control unit extracts and removes the drawing operation during periods when it would cause harm (oncoming vehicles, pedestrians nearby), allowing the system to maintain visibility duration during safe periods while eliminating the harmful continuous operation.
3Loss of information
If the indication mark is drawn to extend beyond the current lane, then the intended lane change or turn is clearly indicated, but it may mislead other road users when the vehicle does not actually change lanes
Solution Approach 1:
The patent uses feedback from detection units that monitor whether the vehicle actually performs the intended lane change or turn. The control unit receives feedback about the vehicle's actual trajectory and surrounding conditions, and uses this feedback to determine whether to extend the indication mark beyond the current lane, ensuring the mark accurately reflects the vehicle's actual intentions and preventing misleading information.
Solution Approach 2:
The patent applies dynamics by making the indication mark's extent dynamic rather than fixed. The drawing unit adjusts the mark's position and extent in real-time based on feedback about the vehicle's actual movement and surrounding conditions, ensuring the mark remains accurate and non-misleading even as the vehicle's trajectory changes.
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 device provides more appropriate and safe indication of the vehicle's direction by dynamically controlling the drawing of marks, reducing the risk of misunderstandings and ensuring clear communication of the vehicle's trajectory to other road users.
Implementation Method 1
a drawing unit that draws, on a road surface, an indication mark of a predetermined shape in a traveling direction of the vehicle using light
Data Source
AI summary
A vehicular drawing device is mounted in a vehicle and draws an indication mark of a predetermined shape on a road surface in a traveling direction of the vehicle using light. Drawing of the indication mark on the road surface is performed when a direction indicator is operating or when steering of the vehicle is being performed. Drawing of the indication mark is stopped or a direction in which the indication mark is drawn is changed when predetermined conditions are satisfied.