Geo-fenced Message Broadcast with Lifetime Constraints
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Solution Overview
Problem
Current wireless data packet dissemination methods lack the ability to target specific messages to specific recipients in specific geographical areas based on message lifetime, limiting their effectiveness for applications like security alerts and commercial interactions.
Innovation Solution
A system utilizing handheld devices, vehicular navigation systems, and servers to broadcast specific data content to recipients within a dynamically defined geo-fence area based on message lifetime, ensuring messages are received only by users who can act on them within that timeframe.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If wireless data packets are broadcast to all recipients, then message coverage is maximized, but message relevance and effectiveness deteriorate
Solution Approach 1:
The patent applies local quality by making message delivery location-dependent. The system determines whether to deliver a message based on the recipient's current geographic location relative to the message's target location. This ensures that only recipients in the appropriate local area receive the message, maintaining message relevance while enabling targeted dissemination.
Solution Approach 2:
The patent segments the message delivery process into distinct evaluation steps: determining message lifetime, calculating delivery windows, assessing recipient location, and deciding on message delivery. This segmentation allows the system to selectively deliver messages to specific recipients in specific areas, resolving the contradiction between broad coverage and targeted relevance.
2Quantity of substance
If message lifetime is extended, then more recipients can receive the message, but message timeliness and urgency deteriorate
Solution Approach 1:
The patent applies dynamics by making the message delivery window dynamic rather than static. The delivery window is calculated based on the message lifetime and continuously adjusted as recipients move. The system recalculates whether a recipient can reach the message location within the remaining lifetime, allowing the effective delivery period to adapt to recipient movement and maintaining timeliness while maximizing recipient reach.
Solution Approach 2:
The patent changes the parameter of message delivery from a fixed time-based approach to a dynamic calculation involving message lifetime, recipient location, and travel time. By continuously evaluating these parameters, the system determines the optimal delivery window that balances the number of recipients who can act on the message with the timeliness requirement.
3Measurement precision
If geographic targeting is implemented, then message precision is improved, but system complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-defining message characteristics including target location and lifetime before dissemination. The system prepares the delivery criteria in advance, calculating the delivery window and geographic parameters beforehand. This preliminary setup simplifies the real-time decision process by having all necessary parameters predetermined, reducing the complexity of on-the-fly calculations.
Data Source
AI summary
The invention is a system and use method for enabling a broadcaster user to specify a message lifetime, compose messages to be broadcast to recipient users located in geographical areas determined by message lifetime and recipient users' locations, directions and speeds; and to broadcast messages to recipient users who have entered or are in those geographical areas.