Portable Sound Generator Using Structural Resonance for Building Alerts
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Solution Overview
Problem
Existing methods for alerting building occupants of a visitor or emergency, such as doorbells and traditional knockers, often fail to produce sufficient sound, especially in remote areas, leading to missed notifications and inefficient delivery processes, and are not easily portable or adaptable for use with drones and robots.
Innovation Solution
A portable sound generating device that uses a transducer to resonate building surfaces, allowing for loud, penetrating alerts without physical changes to the building, and can be combined with drones, robots, and personal devices like mobile phones to provide audible notifications in various languages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If traditional doorbells or knockers are used, then occupants near the door can be notified, but occupants in remote areas of the building cannot be effectively alerted
Solution Approach 1:
The device uses a transducer to generate mechanical vibrations that resonate with the building structure, causing the building surfaces to vibrate and transmit sound waves throughout the structure. This mechanical vibration approach allows the notification sound to propagate effectively to remote areas within the building, resolving the contradiction between sound intensity and notification reliability.
Solution Approach 2:
The building structure itself serves as an intermediary medium to transmit the notification sound. By coupling the transducer to the building surface, the structure acts as a resonating medium that carries the sound waves throughout the building, enabling reliable notification to occupants in remote areas without requiring direct line-of-sight or air-based sound transmission.
2Reliability
If delivery personnel knock repeatedly on doors, then occupants may be notified, but the delivery personnel experience discomfort and chronic injury
Solution Approach 1:
The device replaces the mechanical action of knocking with an electronic transducer system. Instead of using human hands to physically knock on doors, the transducer generates vibrations that are transmitted through the building structure, eliminating the harmful mechanical impact to delivery personnel's hands while maintaining effective notification capability.
Solution Approach 2:
The transducer and building structure serve as intermediaries between the delivery personnel and the occupant. The device mediates the notification process by converting electrical signals into structural vibrations, eliminating the need for direct physical contact between the delivery personnel's hands and the door surface.
3Adaptability or versatility
If sophisticated electronic door bell systems with voice messaging are installed, then communication capability is improved, but the system becomes too complex and expensive for general use
Solution Approach 1:
The invention extracts only the essential sound generation and transmission functionality from complex electronic door bell systems. By removing unnecessary features such as voice messaging, display screens, and sophisticated control interfaces, the device achieves effective notification capability with minimal complexity and lower cost.
Solution Approach 2:
The device employs a simple, inexpensive transducer and portable speaker design that can be easily manufactured and deployed without requiring complex installation infrastructure. This approach prioritizes cost-effectiveness and ease of deployment over advanced communication features, making the system accessible for general use.
4Reliability
If delivery personnel use portable sound generating devices, then notification reliability is improved, but the device must be portable and adaptable for use with drones and robots
Solution Approach 1:
The device is designed with universal mounting capabilities that allow it to be attached to various platforms including handheld devices, drones, and robots. The transducer and speaker assembly can be coupled to different surfaces and structures, enabling the same notification mechanism to function effectively across multiple delivery and notification scenarios without requiring platform-specific customization.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Ensures reliable notification of building occupants with loud, clear sounds, reducing the need for repetitive knocking and straining, enhancing delivery efficiency and emergency communication, and providing a cost-effective solution for use with various delivery and notification systems.
Implementation Method 1
uses a transducer to resonate building surfaces, allowing for loud, penetrating alerts
Data Source
AI summary
An apparatus and method for generating alerting sounds and broadcasting the same into the interior of a building so that an occupant can be made aware of an emergency, warning, etc. or of the building for various other purposes such as to greet a visitor or accept a package or sign documents from a transporter drone or robot. The sounds are generated by an exciter feature of a transducer held in a case, the exciter feature being able to be pressed against an exterior surface. The transducer vibrates its exciter feature in correspondence with audio signals transmitted to the transducer to broadcast corresponding sounds into the interior of the building by resonance induced in the door or other building member by the vibrating exciter feature. The sounds may resemble conventional alerting sounds such as a knocking or ringing sounds, and/or can be a spoken message either prerecorded in an audio source or created contemporaneously by being spoken by a user into a microphone. The device may be hand carried door to door as by delivery personnel and emergency workers and used to effectively alert occupants and eliminate the need for hand knocking or yelling a message through the door, or is mounted to a drone, robot, or other transporter device, or to some other portable device. The device may also be used to broadcast sounds in an open area by holding the exciter feature against a sign board or other structure in an open area.