Micromobility Collision Alerts Using Speed-Triggered Warning Modes
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Solution Overview
Problem
The increasing number of accidents and injuries associated with micromobility vehicles poses a barrier to their wider adoption for transportation, as existing technologies have not effectively addressed the need for real-time collision warnings and safety alerts.
Innovation Solution
A collision warning system for micromobility vehicles, equipped with proximity sensors, speed sensors, and a controller that activates warning devices based on calculated collision risks, including audible and visual alerts, and communicates alerts to remote devices in case of collisions or falls.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If collision warning systems are implemented for micromobility vehicles, then safety and collision risk reduction are improved, but device complexity and cost increase
Solution Approach 1:
The system divides the warning function into two distinct modes: bypass mode for low-speed operation and warning mode for high-speed operation. This segmentation allows the system to activate complex sensor processing and warning devices only when necessary, reducing overall system complexity while maintaining high safety standards during critical high-speed conditions.
Solution Approach 2:
The controller pre-establishes speed thresholds and mode transition criteria before operation. By determining in advance when to switch between bypass and warning modes based on predetermined speed thresholds, the system avoids the need for complex real-time decision-making algorithms, thereby reducing computational complexity while ensuring reliable safety responses.
2Reliability
If warning devices are activated continuously, then collision detection capability is improved, but energy consumption increases
Solution Approach 1:
The system employs periodic mode switching based on speed threshold evaluation. The controller continuously monitors speed but only activates the energy-intensive warning devices when the vehicle enters the warning mode above the threshold. This periodic activation pattern maintains collision detection capability during critical high-speed phases while minimizing energy consumption during low-speed bypass mode operation.
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 system effectively reduces the risk of collisions by providing timely warnings to riders and alerts to remote devices, enhancing safety and facilitating emergency responses.
Implementation Method 1
at least one proximity sensor includes a LiDAR sensor
Implementation Method 2
the at least one proximity sensor is a LiDAR sensor
Data Source
AI summary
Collision alert systems and methods for micromobility vehicles includes a proximity sensor, a speed sensor, a warning device, and a controller having a bypass mode and a warning mode. The controller compares the speed of the micromobility vehicle with a predetermined speed threshold, enters the bypass mode when the speed of the micromobility vehicle is less than the predetermined speed threshold, and enters the warning mode when the speed of the micromobility vehicle is greater than the predetermined speed threshold. The controller does not activate the warning device in the bypass mode. In the warning mode, calculates an estimated time until a potential collision with the object, compares the estimated time object with a predetermined time threshold, and generates a collision warning by activating the warning device in response to the estimated time until collision being less than the predetermined time threshold.