Voice Alarm Device Bluetooth Audio Upload
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Solution Overview
Problem
Fire alarm systems often lack the capacity to integrate voice alarm notification devices due to insufficient data communication, preventing the addition of custom pre-recorded voice messages, which are essential for effective evacuation instructions.
Innovation Solution
A voice alarm notification device with a network port and a Bluetooth module allows for the addition of audio files without overwhelming the network, enabling efficient communication and integration with fire alarm systems by using Bluetooth for data transfer and storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If voice alarm notification devices are integrated into fire alarm systems using existing network loops, then the system can provide evacuation instructions, but the network data communication capacity is insufficient to transmit new voice messages within a reasonable timescale
Solution Approach 1:
The patent introduces a separate wireless communication channel (Bluetooth, Wi-Fi, or cellular module) as an intermediary for transmitting voice message files to the voice alarm notification device. This bypasses the constrained fire alarm system network loop, allowing rapid transfer of large audio files without overwhelming the existing 500 bytes/second network capacity.
2Productivity
If voice alarm notification devices are installed on a separate public address and voice alarm (PAVA) system, then sufficient data communication capacity is available, but the device complexity and system integration increase
Solution Approach 1:
The patent combines two previously separate systems into one integrated device: the voice alarm notification functionality is merged with the fire alarm system's power supply and network infrastructure. The device receives power from the fire alarm system's loop and uses the wireless communication module for rapid voice message transfer, eliminating the need for a completely separate PAVA system while maintaining high data transfer capability.
3Device complexity
If the fire alarm system network loop is used for transmitting voice message data, then system integration is simplified, but the network becomes overwhelmed and cannot complete transmissions within a reasonable timescale
Solution Approach 1:
The patent segments the data transmission function into two separate channels: the fire alarm system network loop handles control signals and status communication, while a dedicated wireless communication module handles the bulk data transfer of voice message files. This segmentation allows each channel to operate at its optimal speed without interfering with the other, reducing the time to add voice messages from potentially hours to minutes.
Data Source
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AI summary
A voice alarm notification device of a fire alarm system, comprising: a network port for receiving an alarm notification signal; an audio file library in which the audio files include audio voice message files; a speaker; a processor unit connected to the network port for processing an alarm notification signal and for selecting one of the audio files from the library to be played through the speaker; and a Bluetooth module for establishing a Bluetooth communication link to the voice alarm notification device, via which link an audio voice file can be received. The device is arranged to add the audio voice file received via the Bluetooth communication link to the library so as to be available for selection by the processor unit when it receives an alarm notification signal.