Portable Air Horn with Motor-Driven Compressor and Microprocessor Control
Solution Overview
Problem
Existing portable air horns relying on compressed gas canisters are unreliable due to finite gas supply and leakage issues, making them unsuitable for professional use in situations requiring consistent warning sounds.
Innovation Solution
A portable air horn apparatus powered by a motor-driven compressor, using a rechargeable nano-phosphate lithium-ion battery and equipped with a microprocessor, galvanometer, and blast initiator unit, which provides a reliable and efficient means of generating warning sounds without the limitations of gas canisters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If compressed gas canisters are used to power air horns, then the device is lightweight and inexpensive, but the gas supply is finite and leakage occurs reducing reliability
Solution Approach 1:
The system is divided into separate functional modules: a reusable control unit containing the motor and electronics, and replaceable power cartridges containing the compressed gas. This segmentation allows the complex motorized components to be separated from the consumable gas supply, improving reliability of the control system while managing complexity through modularity.
Solution Approach 2:
The patent replaces the direct mechanical valve operation with an electric motor-driven compressor system. The motor controls the compression and release of gas through electronic control, eliminating the need for manual valve manipulation and providing more precise, reliable control over gas delivery to the air horn.
2Duration of action of moving object
If valve devices are used to control gas flow, then the device is simple to operate, but gas leakage reduces the number of uses before replacement
Solution Approach 1:
The mechanical valve system is replaced with an electric motor-driven compressor controlled by electronic circuitry. The motor activates the compressor to deliver controlled bursts of compressed air to the air horn, eliminating gas leakage issues associated with manual valves while extending operational duration through efficient gas utilization.
Solution Approach 2:
The system incorporates automatic shutdown functionality where the motor and compressor automatically cease operation after delivering the required number of air horn blasts or when the gas cartridge is depleted. This self-service feature eliminates the need for manual monitoring and intervention, preventing wasted gas and extending effective operational duration.
3Productivity
If gas canisters are used, then the device can generate high volume sound, but the canister must be frequently changed due to finite gas supply
Solution Approach 1:
The system separates the time-consuming valve replacement operation from the gas supply function. Instead of replacing entire canisters, users simply swap lightweight gas cartridges while the motorized control unit remains in place. This segmentation dramatically reduces replacement time and improves productivity by allowing rapid cartridge changes without handling heavy canisters or complex valve assemblies.
Solution Approach 2:
The system is designed to recover and reuse the expensive motorized control unit while only discarding the consumable gas cartridges. This approach maximizes productivity by retaining the valuable electronic and mechanical components across multiple gas cartridge cycles, reducing both time and cost associated with frequent replacements.
4Reliability
If gas leakage occurs, then the device becomes inoperative unexpectedly, but replacing the canister takes time and may be dangerous
Solution Approach 1:
The manual valve system prone to leakage is replaced with an electrically controlled motor-driven compressor. The motor system provides sealed, controlled gas delivery through electronic actuation, eliminating the leakage paths present in mechanical valve designs and ensuring reliable operation without unexpected failure.
Solution Approach 2:
The system introduces an intermediary motorized compression stage between the gas cartridge and the air horn. This intermediary component provides controlled, metered gas delivery through sealed channels and electronic valves, preventing the direct leakage pathways that occur in simple valve-to-horn configurations and eliminating the need for dangerous canister replacements.
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
The solution ensures a consistent and reliable source of warning sounds, reducing the need for frequent replacements and minimizing operational failures, making it suitable for professional and hazardous environments.
Implementation Method 1
a compressor, the compressor being operable by a motor
Implementation Method 2
an air horn assembly for generating a warning sound, the air horn being mounted in the housing and receiving pressurized air from a compressor
Data Source
Figure 1
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AI summary
A portable air horn apparatus includes a housing, an air horn assembly for generating a warning sound, a switch for activating the air horn assembly and a power source. A microprocessor is provided in communication with the switch, the air horn assembly and the power source. The microprocessor includes at least one port for receiving an electronic component and is capable of automatically loading and executing software of the electronic component.