Misplacing Prevention Device Using Wireless Position Detection
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Solution Overview
Problem
There is no effective system to notify users when they forget to carry items, such as wallets, inside or outside a predetermined area, like a vehicle interior, leading to misplacement.
Innovation Solution
A misplacing prevention device that uses wireless communication between a master device and a slave device attached to items, with a notification unit to alert users of misplacement within or outside a predetermined area, including a storage unit for identification data and position detection to illuminate the item's location.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a notification system is implemented to prevent misplacement of items, then misplacement prevention capability is improved, but device complexity increases
Solution Approach 1:
The system is divided into a master device (notification unit) and slave devices (attached to items). Each slave device independently monitors its own position relative to the predetermined area and communicates with the master device, distributing the complexity across multiple simple components rather than requiring one complex centralized system.
Solution Approach 2:
Wireless communication serves as an intermediary mechanism between the slave devices and the master device. This allows position information to be transmitted without physical connections or complex wiring, simplifying the overall system architecture while maintaining reliable notification capability.
2Measurement precision
If position detection and notification features are added to prevent misplacement, then item tracking capability is improved, but ease of operation deteriorates
Solution Approach 1:
The slave devices attached to items perform self-monitoring of their position relative to the predetermined area. The system automatically detects position changes and triggers notifications without requiring user intervention for monitoring or manual tracking operations, maintaining simplicity while providing precise position detection.
Solution Approach 2:
The system pre-establishes the predetermined area boundaries and detection parameters before use. When an item is attached to a slave device, the position monitoring and notification thresholds are already configured, eliminating the need for users to manually set up detection parameters or adjust sensitivity settings during operation.
3Loss of information
If wireless communication between master and slave devices is implemented, then notification accuracy is improved, but energy consumption increases
Solution Approach 1:
Instead of continuous communication, the slave devices perform wireless communication periodically or event-driven (when position changes occur). This reduces the frequency of energy-consuming transmission operations while maintaining accurate notification capability by only communicating when necessary to detect position changes relative to the predetermined area.
Data Source
AI summary
A misplacing prevention device capable of preventing leaving items inside and outside a predetermined area is provided. A microprocessor, when a user enters a vehicle interior, determines that the slave device having the ID stored in the memory is not in the vehicle interior based on a communication between a master device and a slave device, detects carrying-in leaving, and notifies the fact. The microprocessor, when the user enters an outside of the vehicle, also notifies a position of the slave device in the vehicle interior.