Barrier-Mounted Road Sign Rotation for Driver Visibility
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Solution Overview
Problem
Existing roadside displays lack robustness and versatility, particularly in terms of mounting stability and dynamic orientation adjustment to optimize visibility for drivers under varying conditions.
Innovation Solution
A roadside display sign with a saddle-shaped base that engages barriers or walls, featuring a drive apparatus to rotate the display about a vertical axis, equipped with a default mechanism to return to a home orientation in the absence of power, and sensors to detect angle and control rotation dynamically based on real-time conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display is made rotatable to optimize visibility for drivers, then the adaptability to varying conditions is improved, but the device complexity increases due to the drive apparatus and control mechanisms
Solution Approach 1:
The display is made rotatable about a vertical axis through a drive apparatus, allowing it to dynamically adjust its orientation angle to optimize visibility for drivers under varying traffic and environmental conditions, transforming a static structure into a dynamic adaptive system
Solution Approach 2:
The base structure is designed with a saddle shape that can universally engage with different barrier types (walls, fences, barriers), and the rotatable display can serve multiple functions including visibility optimization, safety positioning, and adaptability to various mounting locations
2Reliability
If the base is designed to engage barriers and walls for mounting stability, then the reliability is improved, but the ease of manufacture worsens due to the complex saddle-shaped structure
Solution Approach 1:
The base is segmented into distinct functional components: a saddle-shaped mounting structure for barrier engagement, a vertical support element for display mounting, and a drive apparatus section. This segmentation allows each component to be manufactured separately using appropriate processes and then assembled, improving overall ease of manufacture while maintaining reliability
Solution Approach 2:
The saddle-shaped base serves multiple functions simultaneously: it provides stable engagement with various barrier types, supports the vertical display mounting structure, and accommodates the drive apparatus. This multi-functionality reduces the need for separate components, potentially simplifying the overall manufacturing process
3Illumination intensity
If the display is positioned to protrude for visibility, then the visibility is improved, but the stability worsens due to increased exposure to external forces
Solution Approach 1:
The display's protrusion distance and orientation are made dynamic rather than fixed. The display can rotate to optimize visibility while maintaining a controlled protrusion distance, and can return to a retracted home position when not in use, thereby balancing visibility requirements with stability and safety considerations
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 provides a robust and versatile display that optimizes visibility by aligning with barriers for unobtrusiveness and adjusting to optimal angles based on driving conditions, ensuring safety and maintenance efficiency.
Implementation Method 1
the default mechanism comprises a spring providing a bias to the home position
Implementation Method 2
the drive apparatus comprises a motor
Data Source
AI summary
A display sign is for a central reservation barrier in some examples. It has a base to engage a barrier in a manner which envelopes the top surface and downwardly on the opposed side walls. A display with display elements provides information for drivers, and a display drive apparatus is mounted to the base and rotates the display about a vertical axis extending from the base. The drives can have a very low profile, with components being offset with respect to the display longitudinal axis. The drive provides that the display is aligned with a barrier in use when not required but is turned to an optimal angle for visibility by drivers according to the driving conditions. The drive brings the display back to the default in operative position when there is a power outage.