Mobile Object Speed Control for Roadway-to-Sidewalk Transitions
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Solution Overview
Problem
Existing technologies fail to appropriately control mobile objects that can move on both roadways and non-roadway regions, such as sidewalks, during transitions between these environments.
Innovation Solution
A mobile object control device and method that includes a hardware processor to recognize the object's location and occupant state, controlling speed transitions and prompting deceleration when entering non-roadway regions based on visual cues, occupant intent, and environmental detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the mobile object maintains high speed on the roadway, then productivity is improved, but safety deteriorates when transitioning to non-roadway regions
Solution Approach 1:
The system performs preliminary detection of non-roadway regions ahead of the mobile object and proactively reduces speed before the transition occurs. The processor identifies the non-roadway region using detection devices, determines the distance to it, and reduces speed in advance based on this distance, ensuring safe transition while maintaining efficient roadway travel.
2Reliability
If the mobile object reduces speed early to prepare for non-roadway entry, then safety is improved, but productivity deteriorates due to reduced roadway speed
Solution Approach 1:
The speed reduction is not static or predetermined but dynamically adjusted based on real-time detection of non-roadway regions and calculated distance to them. The processor continuously monitors the environment and adjusts the speed reduction timing and magnitude according to the actual distance to the non-roadway region, optimizing both safety and productivity.
3Reliability
If the system detects non-roadway regions and controls speed automatically, then safety is improved, but device complexity increases
Solution Approach 1:
The existing detection devices of the mobile object are made multi-functional by utilizing them for both their original purposes and for detecting non-roadway regions. The processor integrates the function of identifying non-roadway regions and calculating distances using already-available sensors and detection systems, avoiding the need for additional specialized components and minimizing system complexity.
Data Source
AI summary
A hardware processor of a mobile object executes the program stored in a storage device to acquire a state of at least one occupant getting on a mobile object capable of moving on both a roadway and a predetermined region different from the roadway; to recognize whether the mobile object is moving on the roadway or the predetermined region; to recognize presence of a contact portion between the predetermined region and the roadway in a traveling direction of the mobile object; to control the speed of the mobile object at least partially, and limit a speed at which the mobile object is moving on the roadway to a first speed and limit a speed at which the mobile object is moving on the predetermined region to a second speed slower than the first speed; and to bring a speed of the mobile object closer to the second speed when the mobile object is moving on the roadway, the contact portion is recognized within a predetermined range from the mobile object, and the state of the occupant is a predetermined state.