Mobile Audio Mesh Distribution for Synchronized Emergency Broadcasting
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Solution Overview
Problem
Existing systems fail to efficiently distribute time-synchronized audio over a wide geographic area, particularly in public venues and emergency situations, where direct communication between audio modules may be disrupted, and there is a need for autonomous detection and dissemination of messages across diverse spatial areas.
Innovation Solution
A mobile audio mesh distribution system utilizing a network of independent mobile audio modules (MAMs) that communicate via a wireless mesh network, incorporating drone delivery aircraft (DDA) for bridging communication gaps, and physical event detectors (PEDs) to trigger audio playback based on detected events, with a computer control system (CCS) for centralized control and synchronization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a centralized audio distribution system is used, then audio synchronization can be achieved, but the system reliability deteriorates when wireless links are broken
Solution Approach 1:
The system divides the centralized audio distribution network into autonomous mesh-networked MAM units that can independently communicate and maintain audio distribution. Each MAM acts as an independent node with local audio playback recorder and RF transceiver, enabling the system to function even when some nodes are disconnected, thus resolving the contradiction between centralized synchronization and distributed reliability.
Solution Approach 2:
The patent introduces drone delivery aircraft as intermediary carriers to transport audio data between MAM nodes when direct wireless communication is unavailable. This intermediary mechanism ensures continuous audio distribution and maintains system reliability even when wireless links are broken, while the mesh network maintains synchronization through alternative communication paths.
2Area of stationary object
If mobile audio modules are deployed over wide geographic areas, then coverage area is improved, but communication reliability deteriorates due to broken wireless links
Solution Approach 1:
The system transitions from two-dimensional ground-based wireless communication to three-dimensional space by deploying drone delivery aircraft in the aerial dimension. This allows audio data to be transported across wide geographic areas by flying over obstacles and through areas where ground-based wireless links are blocked, maintaining communication reliability while expanding coverage area.
Solution Approach 2:
The system pre-deploys MAM units across the target geographic area before emergency events occur, and pre-establishes mesh network connections between them. Audio data is pre-loaded into local audio playback recorders at each MAM node, ensuring that communication infrastructure is already in place and functional before wireless links might be broken during emergencies.
3Speed
If autonomous message dissemination is implemented, then response speed to emergencies is improved, but system complexity increases
Solution Approach 1:
Each MAM unit is equipped with autonomous capabilities including local audio playback recorder, RF transceiver for mesh networking, and physical event detectors that can independently detect emergencies and trigger audio message dissemination without requiring constant centralized control. This self-service autonomy enables rapid emergency response while the modular design keeps individual node complexity manageable.
Solution Approach 2:
The MAM units are designed as multi-functional devices that can perform audio distribution, emergency detection, mesh networking, and drone coordination simultaneously. This universality allows a single system architecture to handle both routine audio distribution and emergency message dissemination, improving response speed without requiring separate complex systems for each function.
Data Source
AI summary
A mobile audio mesh distribution (MAD) system/method allowing synchronized audio distribution to modular audio modules (MAMs) and/or drone delivery aircraft (DDA) in mesh audio network (MAN) is disclosed. The system/method utilizes a computer control system (CCS) that communicates wirelessly using a plurality of RF transceivers (RFT) over a RF mesh network (RMN) with one or more MAM that are configured to independently communicate with each other and automatically determine if audio updates are required from the CCS. The MAM are configured to query other MAMs in the RMN to determine if a connected MAM has updated audio/text (UAT), and if so, to download the UAT and schedule audio playback on a speaker. Messages may be transmitted to the MAM in the event of an emergency, terrorist event, or a physical event detected (PED) using prerecorded or updated audio that trigger immediate or scheduled playback by the MAM.