Road-Type Recognition for Dual-Zone Mobile Object Speed Limits
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Solution Overview
Problem
Conventional technologies do not support appropriate control of mobile objects that can move on both roadways and prescribed regions different from roadways, such as sidewalks, leading to difficulties in managing speed and navigation.
Innovation Solution
A mobile object control device and method that includes a road-type recognition unit to distinguish between roadways and prescribed regions, with a control unit that limits speeds to different thresholds based on the recognized environment, and provides external notifications when in a prescribed region.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the mobile object moves on the roadway, then higher speed is required for efficiency, but safety and regulatory compliance require speed limitation
Solution Approach 1:
The control device dynamically adjusts the speed limit based on the detected environment. When the mobile object is on the roadway, the speed is limited to a first speed (e.g., 6 km/h). When on the prescribed region (sidewalk), the speed is limited to a second speed (e.g., 4 km/h). This dynamic adjustment resolves the contradiction by adapting the speed constraint to the specific operating context.
Solution Approach 2:
Different speed limits are applied to different locations. The roadway receives a higher speed limit (first speed) while the prescribed region receives a lower speed limit (second speed). This local differentiation allows the system to optimize for efficiency on roadways while maintaining safety on sidewalks.
2Reliability
If the mobile object moves on the prescribed region (sidewalk), then safety requires lower speed, but operational efficiency requires higher speed
Solution Approach 1:
The system dynamically switches between two speed regimes based on location detection. On prescribed regions, it applies a lower second speed for safety. When transitioning to roadway, it switches to the higher first speed for efficiency. This dynamic switching resolves the contradiction between safety and efficiency.
Solution Approach 2:
The control device applies different speed characteristics to different spatial zones. The prescribed region is assigned a lower speed characteristic (second speed) for safety, while the roadway is assigned a higher speed characteristic (first speed) for efficiency. This local quality differentiation resolves the contradiction.
3Adaptability or versatility
If the mobile object operates in both roadway and prescribed region, then versatility is improved, but control complexity increases
Solution Approach 1:
The control system is segmented into distinct functional modules: a detection unit that identifies the current location type (roadway or prescribed region), and a control unit that applies appropriate speed limits based on the detection. This segmentation manages complexity by creating modular, independent components with clear interfaces.
Solution Approach 2:
The control device is designed to universally handle multiple operating environments (roadway and prescribed region) through a single integrated system. The detection unit universally identifies location type, and the control unit universally applies appropriate speed limits, making the system versatile without requiring separate control systems for each environment.
Data Source
AI summary
A mobile object control device for controlling a mobile object capable of moving both on a roadway and in a prescribed region different from the roadway includes a road-type recognition unit configured to recognize whether the mobile object is moving on the roadway or in the prescribed region and a control unit configured to at least partially control a speed of the mobile object. The control unit limits the speed of the mobile object moving on the roadway to a first speed and limits the speed of the mobile object moving in the prescribed region to a second speed that is lower than the first speed.


