Pedestrian Safety Map Generation from Acceleration Data
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Solution Overview
Problem
Existing information processing systems and slipping information output systems fail to effectively convey potential dangers on roads or sidewalks, such as falling, slipping, or stumbling hazards, which can impact pedestrian safety.
Innovation Solution
An information provision system that collects position and behavior information from user terminals, generates a danger level map highlighting attention-seeking places based on observed behavior, and provides this map to designated terminals to enhance pedestrian safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If position information and behavior information are collected from user terminals to generate safety maps, then pedestrian safety information is improved, but system complexity and data processing requirements increase
Solution Approach 1:
The system divides the safety information system into independent components: user terminals that collect local behavior data, server systems that aggregate and process data, and map generation modules that create danger level maps. This segmentation allows each component to function independently while contributing to the overall safety information system.
Solution Approach 2:
The patent introduces intermediary elements including server systems that mediate between user terminals and map users, communication networks that transfer data, and standardized protocols that facilitate data exchange. These intermediaries enable the system to handle complexity centrally while keeping individual user terminals relatively simple.
2Measurement precision
If behavior information indicating acceleration is collected to identify dangerous locations, then detection precision of hazards is improved, but energy consumption of user terminals increases
Solution Approach 1:
The system collects behavior information only when specific conditions are met, such as when acceleration exceeds certain thresholds or when users are in areas where safety information is needed. This partial action approach maintains high detection precision for hazards while minimizing continuous energy consumption by not constantly monitoring all parameters at maximum precision.
Solution Approach 2:
User terminals autonomously determine when to collect and transmit behavior information based on local conditions such as detected acceleration patterns and location data. This self-service approach eliminates the need for continuous centralized control signals, reducing communication energy consumption while maintaining effective hazard detection.
Data Source
AI summary
An information provision system according to an aspect of the present disclosure includes at least one memory configured to store instructions; and at least one processor configured to execute the instructions to: collect, from a user terminal, position information of the user terminal and behavior information indicating a movement behavior of the user terminal moving at an acceleration higher than a predetermined value; generate a danger level map representing an attention-seeking place based on a position in which the behavior information is observed on a predetermined map; and provide the danger level map to a predetermined terminal.