Vehicle Speed-Based Crosswalk Display Control
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Solution Overview
Problem
Current technologies do not adequately enhance pedestrian safety and convenience during road crossings, especially when vehicles are stationary due to traffic jams, as they do not effectively display crosswalks in situations where vehicles are not moving.
Innovation Solution
A control apparatus that detects pedestrians about to cross the road and, if the speed of approaching vehicles is below a reference speed and safety standards are met, activates light-emitting devices to display a crosswalk, notifying both the first and following vehicles to ensure safe passage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If crosswalk is displayed only when vehicles are moving, then vehicle safety is maintained, but pedestrian convenience and safety are reduced when vehicles are stationary
Solution Approach 1:
The system dynamically adjusts crosswalk display based on real-time vehicle speed detection. When vehicle speed falls below a predetermined threshold (indicating stationary or slow-moving vehicles), the crosswalk is activated to improve pedestrian convenience. This dynamic adaptation resolves the contradiction by allowing the system to switch between safety-mode (crosswalk hidden when vehicles move) and convenience-mode (crosswalk displayed when vehicles are stationary).
Solution Approach 2:
The system changes the display parameter (crosswalk visibility) based on the vehicle speed parameter. By monitoring vehicle speed and using this parameter to control the crosswalk display state, the system optimizes both pedestrian convenience and vehicle safety. When speed < threshold, crosswalk becomes visible; when speed ≥ threshold, crosswalk is hidden, thus resolving the technical contradiction through parameter-based control.
2Reliability
If crosswalk is displayed when vehicles are stationary, then pedestrian safety is improved, but vehicle operators may engage in reckless driving
Solution Approach 1:
The system continuously monitors vehicle speed and uses this feedback to control crosswalk display. When vehicles accelerate above the predetermined threshold, the crosswalk display is automatically deactivated, providing real-time feedback that prevents reckless driving. This feedback mechanism ensures that crosswalk display only occurs when vehicles are genuinely stationary or moving slowly, thus maintaining pedestrian safety while preventing harmful driving behavior.
Solution Approach 2:
The crosswalk display is dynamically adjusted based on real-time vehicle speed conditions. The system transitions between display and non-display states according to whether vehicle speed is below or above the threshold, creating a dynamic control mechanism that prevents reckless driving by automatically hiding the crosswalk when vehicles accelerate, thus resolving the contradiction between pedestrian safety and preventing harmful driving.
3Ease of operation
If crosswalk display is activated frequently, then pedestrian convenience is improved, but energy consumption increases
Solution Approach 1:
The system uses vehicle speed as a control parameter to determine crosswalk display activation. By threshold-based parameter control (speed < threshold → display active, speed ≥ threshold → display inactive), the system optimizes energy consumption while maintaining pedestrian convenience. The crosswalk display is activated only when necessary (vehicles stationary or slow-moving), avoiding unnecessary energy consumption during high-speed vehicle operation while still providing convenience when needed.
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 solution improves pedestrian safety and convenience by allowing pedestrians to cross even when vehicles are stationary, preventing reckless driving and ensuring that crosswalks are visibly displayed, thus enhancing road crossing safety and convenience.
Implementation Method 1
causing light emitting devices to display a crosswalk
Data Source
AI summary
A control apparatus is a control apparatus for causing light emitting devices to display a crosswalk when the control apparatus detects a pedestrian who is about to cross a road. The control apparatus includes a controlling portion configured to perform: detect, as a first vehicle, a vehicle traveling in a crosswalk display region where a crosswalk is to be displayed; determine whether or not the speed of the first vehicle is less than a reference speed; and in a case where the speed is less than the reference speed and a predetermined safety standard is satisfied, determine to cause the light emitting devices to display the crosswalk.