Multi-protocol Fire Alarm Strobe Synchronization

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Solution Overview

Problem

Current fire alarm strobe light systems require synchronization of devices from the same manufacturer to comply with UL 1971 standards, limiting flexibility and forcing consumers to purchase devices from a single manufacturer, which increases costs and reduces options in new installations and retrofits.

Innovation Solution

A device and method that synchronize strobe light devices from different manufacturers by determining timing discrepancies and programming a power supply to generate unique synchronization protocols for each manufacturer's devices, ensuring they flash in sync, using either a simple on/off trigger or a sync follow trigger.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If strobe lights from different manufacturers are used in a fire alarm system, then device compatibility and consumer choice are improved, but synchronization reliability deteriorates due to proprietary protocols

Engineering Contradiction:
Improvedevice compatibilityVSAvoidsynchronization reliability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent introduces a universal synchronization signal as an intermediary that mediates between different manufacturer-specific protocols. The control panel converts proprietary protocols into a universal format, allowing strobe lights from different manufacturers to synchronize reliably without direct manufacturer compatibility

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent changes the synchronization parameter format from manufacturer-specific proprietary protocols to a universal standardized protocol. By transforming the signal parameters into a common format, the system achieves both device compatibility across manufacturers and synchronization reliability through standardized timing and flash rate parameters

Inventive Principle:
Principle #35Parameter changes

2Reliability

If manufacturer-specific synchronization protocols are used, then synchronization reliability is improved, but device complexity increases due to multiple protocol support requirements

Engineering Contradiction:
Improvesynchronization reliabilityVSAvoidprotocol support complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent implements a universal synchronization signal that serves multiple functions: it can control strobe lights from any manufacturer, replace multiple proprietary protocols with a single standardized protocol, and maintain synchronization reliability while reducing the control panel's protocol support requirements from many manufacturer-specific protocols to one universal protocol

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Reliability

If strobe lights are synchronized to flash within 0.01 second time frame, then compliance with UL 1971 standards is improved, but the risk of triggering photosensitive epilepsy increases due to cyclic visual patterns

Engineering Contradiction:
Improvestandard complianceVSAvoidseizure trigger risk
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent applies local quality by providing different flash patterns for different locations or applications. The system can configure strobe lights to flash simultaneously (for standard compliance in critical areas) or with staggered timing (to reduce seizure risk in sensitive environments), allowing the same synchronization system to adapt to local requirements and minimize harmful effects while maintaining necessary compliance

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS8928191B2Multi-protocol fire-alarm strobe synchronization
Publication Date: 2015.01.06 POTTER ELECTRIC SIGNAL CO LLC
  • US8928191B2 patent drawing
  • US8928191B2 patent drawing
  • US8928191B2 patent drawing

AI summary

A system and method of synchronization protocol for fire alarm strobe systems which has the ability to synchronize the strobe light devices from different manufactures simultaneously.