Remotely Controllable Route Indication Devices
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Solution Overview
Problem
Existing evacuation route indicating devices lack flexibility in adapting their output based on individual device parameters, especially in hazardous conditions, and are not capable of dynamically altering the egress path information during emergencies like fires.
Innovation Solution
Integration of a communications interface with directional audio emitting output devices, including a transceiver, protocol controller, and control circuits that allow for real-time provisioning of sound patterns and voice messages, enabling the system to automatically adjust the egress path guidance based on received command and control information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional fixed-parameter locating devices are used, then the system is simple and reliable, but the system cannot dynamically adapt to changing hazardous conditions during evacuation
Solution Approach 1:
The patent implements dynamic parameters by allowing each locating device to individually adjust its sound output characteristics (volume, frequency, pattern) in real-time based on received hazard information. The control system dynamically reconfigures the evacuation path by modifying device parameters rather than using fixed pre-programmed settings, enabling adaptation to changing conditions during the evacuation process.
Solution Approach 2:
The system incorporates feedback mechanisms where the central control receives hazard condition data (from sensors or external sources) and uses this information to adjust the operation of locating devices. The control system continuously monitors the situation and modifies sound patterns, volumes, and activation sequences based on the current hazard state, creating a closed-loop adaptive system.
2Adaptability or versatility
If individual device parameter control is implemented, then the system can adaptively create egress paths, but the control complexity and communication requirements increase
Solution Approach 1:
The patent introduces a central control system as an intermediary that manages the complexity of individual device control. This intermediary receives hazard information, processes it, and translates it into simplified control signals for each locating device. The central controller handles the complex decision-making logic, while individual devices execute straightforward parameter adjustments, distributing the operational complexity across the system architecture.
Solution Approach 2:
The system divides the evacuation control function into independent controllable units (individual locating devices), each capable of receiving and executing specific parameter adjustments. This segmentation allows the complex adaptive path creation to be achieved through coordinated simple actions of multiple independent devices, each controlled individually based on its position in the hazard field.
3Extent of automation
If real-time communication interface is added to each device, then dynamic provisioning is enabled, but the device complexity and cost increase
Solution Approach 1:
The patent employs universal communication protocols and standardized interfaces that allow the same communication hardware to handle multiple functions: receiving hazard level data, accepting control commands, and transmitting device status. This multi-functionality reduces the need for specialized components and minimizes overall device complexity while enabling comprehensive automated provisioning and control capabilities.
Data Source
AI summary
A flexible audio output device includes control circuits couplable to a communications system and an audio announcement system. The communications system can transmit function specifying parameters to the device. Various forms of directional audio, or verbal messages can be emitted in accordance with received parameters.