Conditional Separation Alert System Using BLE Polling
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Solution Overview
Problem
Existing solutions for preventing loss of items are inadequate as they rely on monitoring that may not always be available, and fail to promptly alert users when items are left behind or stolen, especially in high-risk areas.
Innovation Solution
A system using Bluetooth Low Energy communication between mobile devices and entity detection devices attached to items, which monitor movement and state changes, providing situational warnings and alerts based on risk levels, and optimizing battery life through strategic polling and sleep modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If continuous monitoring and frequent transmissions are performed to promptly alert users of item separation or theft, then the reliability and responsiveness of the alert system is improved, but the battery life of the mobile device deteriorates
Solution Approach 1:
The system implements periodic monitoring at configured intervals rather than continuous monitoring. The mobile device checks for item separation at specific time intervals, and transmissions are sent periodically or event-driven. This approach maintains alert system responsiveness while significantly reducing energy consumption compared to continuous monitoring and transmission.
2Reliability
If the system monitors and transmits alert information frequently to ensure prompt user notification, then the loss prevention effectiveness is improved, but the device complexity increases
Solution Approach 1:
The system divides monitoring functions into separate components: the mobile device handles alert logic and user notification, while the item attachment provides location and status data. This segmentation allows each component to be optimized independently, reducing overall system complexity while maintaining effective loss prevention through coordinated operation.
3Reliability
If the system implements comprehensive monitoring of item location and state to prevent theft, then the security level is improved, but the use of energy increases
Solution Approach 1:
The item attachment passively provides location and status information through its sensors without requiring active power consumption for monitoring. The mobile device leverages this passive data to determine separation events and trigger alerts. This self-service approach maintains high security level through comprehensive monitoring while minimizing energy consumption by the powered components.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Effectively alerts users when items are left behind or at risk of theft, while conserving battery life by minimizing unnecessary transmissions and leveraging strategic monitoring modes.
Implementation Method 1
Radio communication using (but not limited to) Bluetooth Low Energy (Bluetooth 4) is used to determine the proximity and the presence of an entity
Implementation Method 2
An examples of an event is the movement or opening of a bag 299 as indicated by an accelerometer 118
Implementation Method 3
gyroscope 119, contact switches, potentiometers, magnetometers
Data Source
AI summary
A system for detecting and reporting the separation of two entities including where the entities are people or items. In some implementations, the system performs separation checking triggered by movement conditions, or by checking of the state of an entity upon separation, and additionally adapts checking methods according to a condition.