Wireless Pyrotechnic Ignition via Electromagnetic Induction
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Solution Overview
Problem
Current ignition systems for pyrotechnic devices, such as fireworks, face safety issues with manual firing and labor-intensive wiring in electrical and digital firing methods, which are cumbersome and time-consuming, and lack control over the ignition sequence of lift and burst charges.
Innovation Solution
A remotely controlled electromagnetic induction system that uses a pyrotechnic mortar tube with a receiving induction member and a transmitting induction coil to wirelessly ignite pyrotechnic devices, allowing for remote operation and sequential control of ignition sequences without the need for extensive wiring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If electrical firing with E-matches is used, then remote ignition is achieved, but wiring becomes time-consuming and cumbersome
Solution Approach 1:
The patent replaces the mechanical wiring system with an electromagnetic induction system. A transmitting coil generates an electromagnetic field that induces current in a receiving coil, eliminating the need for physical wire connections between the firing system and pyrotechnic devices. This substitution maintains remote ignition capability while dramatically reducing setup time and labor.
Solution Approach 2:
The patent introduces an electromagnetic field as an intermediary between the firing control system and the pyrotechnic devices. The transmitting coil converts electrical signals to electromagnetic fields, which then transfer energy wirelessly to the receiving coil, acting as a mediator that eliminates direct electrical connections and reduces wiring complexity.
2Reliability
If extensive wiring is used for electrical firing, then remote ignition is achieved, but the system becomes cumbersome and complex
Solution Approach 1:
The patent replaces the complex mechanical wiring system with a wireless electromagnetic induction system. By using transmitting and receiving coils to transfer energy through electromagnetic fields, the system eliminates numerous wires and connection points, significantly reducing overall system complexity while maintaining remote ignition functionality.
3Ease of manufacture
If manual firing is used, then no wiring is needed, but safety issues arise from inability to ignite remotely
Solution Approach 1:
The patent introduces electromagnetic fields as an intermediary that enables remote operation. The transmitting coil, positioned away from the pyrotechnic devices, generates electromagnetic fields that wirelessly transfer ignition energy to the receiving coil near the device. This allows operators to maintain safe distances while igniting pyrotechnics, eliminating direct exposure to harmful effects.
Solution Approach 2:
The patent replaces manual ignition methods with wireless electromagnetic induction. Instead of physically接近 the pyrotechnic devices for ignition, the system uses electromagnetic fields to transfer energy remotely, maintaining both the simplicity of operation and the safety of remote ignition.
4Ease of operation
If traditional electrical firing is used, then ignition is achieved, but control over ignition sequence of lift and burst charges is limited
Solution Approach 1:
The patent divides the ignition system into separate controllable modules with individual transmitting coils for different pyrotechnic charges. This segmentation allows independent control of lift charge ignition and burst charge ignition, enabling precise sequencing and timing that enhances operational versatility and adaptability.
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
This system reduces setup time and enhances safety by enabling remote ignition of pyrotechnic devices, minimizing the need for extensive wiring and allowing for precise control over the firing sequence, thereby improving efficiency and safety in pyrotechnic shows.
Implementation Method 1
a transmitting induction coil which is adjacent the mortar tube and which is adapted to produce an electromagnetic field for inducing an electric current in the receiving induction member
Data Source
AI summary
A remote pyrotechnic ignition system includes a power supply for producing an electrical current in a transmitting induction coil to induce an electrical current in a receiving induction coil for igniting a pyrotechnic device. Thus, a wireless ignition communication section allows pyrotechnic mortars to be reused and substantially reduces set-up time by eliminating the wiring of fireworks normally required for a pyrotechnic production. Optionally, a capacitor is charged by the power source via a charging circuit and discharged via a firing circuit to produce the electric current in the transmitting coil in a pulse. The capacitor provides a two-stage firing safety feature. An electronic control device such as a circuit board may be mounted on the pyrotechnic device for controlling ignition of the pyrotechnic device and is especially useful in controlling ignition sequencing and overall ignition timing of a lift charge and burst charge of the pyrotechnic device.