Danger Determining Device for Movable Articles in Child Safety Monitoring
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Solution Overview
Problem
Existing safety systems fail to effectively prevent accidents in households caused by movable dangerous articles, as they primarily focus on fixed dangerous locations and do not account for articles that can be moved, leading to potential hazards for infants and children.
Innovation Solution
A system comprising an article detecting means, person detecting means, sensing history database, dangerous article database, and accessible location database to determine if a person can access a left article, assessing the danger posed by the article's location and accessibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing safety systems focus on fixed dangerous locations, then safety monitoring is simplified, but the system fails to detect movable dangerous articles that can be accessed by children
Solution Approach 1:
The patent applies dynamics by transitioning from static dangerous location monitoring to dynamic dangerous article tracking. The system continuously monitors the positions of articles and children, detecting when dangerous articles are within reach of children. This dynamic approach allows the system to adapt to moving objects and provide real-time safety alerts, resolving the contradiction between monitoring effectiveness and system complexity by making the monitoring mechanism itself flexible and responsive.
Solution Approach 2:
The patent introduces an intermediary mechanism using wireless communication between a base station and portable terminals. The base station collects position data from articles and children, processes this information to determine danger conditions, and transmits alerts to guardians' portable terminals. This intermediary communication layer simplifies the overall system architecture while maintaining effective safety monitoring by distributing functions across multiple components.
2Measurement precision
If the system monitors all articles and positions, then detection accuracy improves, but false alarms increase due to inability to distinguish dangerous from non-dangerous articles
Solution Approach 1:
The patent applies local quality by differentiating the monitoring approach based on article characteristics and location. Not all articles are monitored equally - the system identifies dangerous articles based on their properties (e.g., small size, shape suitable for insertion) and their spatial relationship with children. This selective monitoring focused on locally dangerous conditions improves detection accuracy while reducing false alarms by filtering out non-dangerous articles from the monitoring scope.
Solution Approach 2:
The patent utilizes parameter changes by dynamically adjusting monitoring parameters based on real-time conditions. The system changes the state of monitoring from passive to active when dangerous conditions are detected - specifically when an article is within a predetermined distance of a child. This parameter change approach allows the system to maintain high detection accuracy for actual dangers while reducing false alarms by only triggering alerts when critical parameters (distance, article characteristics) meet danger criteria.
3Loss of time
If the system provides detailed real-time monitoring, then safety response time decreases, but energy consumption increases
Solution Approach 1:
The patent applies periodic action by implementing continuous but间歇性 monitoring - the system operates in a low-power state with periodic position updates rather than continuous high-power transmission. Portable terminals and articles transmit position data at intervals, and the base station processes these periodic updates to detect danger conditions. This periodic monitoring approach maintains adequate safety response time while significantly reducing energy consumption compared to continuous real-time monitoring.
Data Source
AI summary
A sensing history database for storing ID and position information of an article detected by an article detecting unit and ID and position information of a person detected by a person detecting unit, a dangerous article database in which an article having a possibility of posing danger in an environment to be watched over is defined for each individual, an accessible location database for storing accessible locations in the environment for each individual, an article-leaving-operation determining unit for determining that the person has left the article from the position information of the article and the position information of the person stored in the sensing history database, and a left-article danger degree determining unit for determining as dangerous when determined that combination of the ID of the person and the ID of the left article in the environment is dangerous from information defined in the dangerous article database and determined that the person present in the environment can access the position of the left article in the article-leaving-operation determining unit.