Intelligent firework unpacking powder electronic ignition system and method

Abstract

The invention provides an intelligent firework unpacking powder electronic ignition system and method, and the system comprises an electronic ignition control module which is used for controlling the ignition of an unpacking powder; and the intelligent firework control system is used for controlling the electronic ignition control module and supplying energy to the electronic ignition control module. The electronic ignition module is used for controlling ignition of the unpacking powder, unpacking time control accurate to milliseconds can be achieved, and the problems that the unpacking height is not accurate and different fireworks need to be customized for different unpacking height effects in an existing mode that the unpacking time is controlled through a blasting fuse or chemical delay powder are solved.

Description

Technical Field

[0001] The present invention relates to the field of electronic ignition control, and in particular to an intelligent fireworks opening powder electronic ignition system and method. Background Art

[0002] In traditional fireworks displays, controlling the mid-air opening of fireworks primarily relies on fuses or chemical delay compounds. However, these methods struggle to achieve precise timing, resulting in inaccurate mid-air opening heights. Furthermore, achieving opening at varying heights requires custom-made fireworks with varying delay characteristics, significantly increasing production costs and complexity. Furthermore, the high initial ignition energy requirements often necessitate the use of highly sensitive opening compounds, posing safety risks during storage and transportation.

[0003] Patent document CN205784910U discloses an electronic ignition delay fireworks system, but the electronic delay ignition module located inside the fireworks shell is connected to an external controller via a wired connection, which greatly increases the difficulty of on-site operation.

[0004] Patent document CN211346557U discloses a type of electronic fireworks particle with wireless charging, but the wireless charging coil therein is only used to charge the electronic fireworks, and not for communication and on-site programming of the electronic fireworks; and the application belongs to electronic fireworks rather than fireworks, and the actual effect achieved is far inferior to that of fireworks. Summary of the Invention

[0005] In view of the defects in the prior art, the purpose of the present invention is to provide an intelligent fireworks opening powder electronic ignition system and method.

[0006] According to the present invention, an intelligent fireworks opening charge electronic ignition system is provided, comprising:

[0007] Electronic ignition control module, used to control the ignition of the package opening powder;

[0008] Intelligent fireworks control system, used to control and power the electronic ignition control module.

[0009] Preferably, the electronic ignition control module includes:

[0010] Secondary coil, secondary resonant capacitor, main control chip, communication capacitor, energy storage capacitor, ignition switch and ignition transducer element;

[0011] The main control chip includes an A pin, a B pin, a VCHG pin, a VCOM pin and a FIRE pin;

[0012] One end of the secondary coil is connected to the secondary resonant capacitor, and the other end is connected to the B pin of the main control chip;

[0013] The other end of the secondary resonant capacitor is connected to the A pin of the main control chip;

[0014] The positive electrode of the communication capacitor is connected to the VCOM pin of the main control chip, and the negative electrode is grounded;

[0015] The positive electrode of the energy storage capacitor is connected to the VCHG pin of the main control chip, and the negative electrode is grounded;

[0016] The gate of the ignition switch is connected to the FIRE pin of the main control chip, the drain is connected to the negative electrode of the ignition transducer element, and the source is grounded;

[0017] The positive electrode of the ignition energy conversion element is connected to the positive electrode of the energy storage capacitor.

[0018] Preferably, the main control chip further includes a full-bridge rectifier circuit, a buck regulator circuit, a communication control module and a charge and discharge module;

[0019] The two input ports of the full-bridge rectifier circuit are connected to the A pin and the B pin of the main control chip respectively, and its output is used to power the step-down voltage stabilization circuit and the charge and discharge module;

[0020] The output of the step-down voltage stabilization circuit supplies power to the communication control module and is connected to the VCOM pin of the main control chip;

[0021] The communication control module is connected to the FIRE pin of the main control chip;

[0022] The charging and discharging module uses the DC power converted by the full-bridge rectifier circuit to charge and discharge the energy storage capacitor through the VCHG pin of the main control chip according to the signal of the communication control module.

[0023] Preferably, the intelligent fireworks control system includes:

[0024] Power module, control module, H-bridge inverter module, primary resonant capacitor and primary coil;

[0025] The power supply module is used to provide input voltage for the H-bridge inverter module and provide operating voltage for the control module; the H-bridge inverter module generates an AC signal under the control of the control module and supplies power to the electronic ignition control module through the primary resonant capacitor and the primary coil.

[0026] Preferably, the secondary coil receives the alternating current generated by the primary coil in the intelligent fireworks control system; the main control chip rectifies the alternating current received by the secondary coil, and controls the energy storage capacitor and the ignition switch according to the received AC signal.

[0027] Preferably, the control module sends instructions to the electronic ignition control module in an FSK modulation manner by adjusting the operating frequency of the H-bridge inverter module.

[0028] Preferably, the communication control module is used to demodulate the received FSK communication instructions.

[0029] Preferably, the communication control module can also control the ignition switch to be turned on within a preset time according to the delay time programmed in the instruction.

[0030] Preferably, the electronic ignition control module is arranged in the firework shell; and the intelligent firework control system is arranged in the firework launching tube.

[0031] According to the present invention, a method for electronically igniting smart fireworks opening charge comprises:

[0032] Step S1: enabling the control module to control the H-bridge inverter module to generate an AC signal;

[0033] Step S2: transmitting the AC signal to the secondary coil;

[0034] Step S3: enabling the secondary coil to receive the AC signal and transmit it to the main control chip;

[0035] Step S4: enabling the control module in the main control chip to demodulate the received FSK communication instruction, and to control the charge and discharge of the energy storage capacitor, and to set the delay time;

[0036] Step S5: When the set delay time is reached, the main control chip controls the ignition switch to be turned on, so that the energy of the energy storage capacitor is released to the ignition transducer element to detonate the package opening charge.

[0037] Compared with the prior art, the present invention has the following beneficial effects:

[0038] 1. The present invention controls the ignition of the opening powder through an electronic ignition module, which can achieve millisecond-accurate opening time control, solving the problem of inaccurate opening height and the need to customize different fireworks for different opening height effects in the existing method of controlling the opening time through fuse or chemical delay powder.

[0039] 2. The present invention provides initial ignition energy through an on-site charged electronic ignition module, allowing fireworks to use less sensitive opening powder, making fireworks products safer.

[0040] 3. The present invention realizes wireless communication and power supply through the coil structure, solving the problem that the electronic ignition module in the fireworks shell cannot be directly connected to the control system in the launch tube for communication and charging the energy storage capacitor.

[0041] Other beneficial effects of the present invention will be explained through the introduction of specific technical features and technical solutions in the specific implementation methods. Those skilled in the art should be able to understand the beneficial technical effects brought about by the introduction of these technical features and technical solutions. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Other features, objects and advantages of the present invention will become more apparent upon reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0043] Figure 1 This is a schematic diagram of the ignition control module in the present invention.

[0044] Figure 2 It is the principle diagram of the control system in the present invention.

[0045] Figure 3 Flow chart of the method of the present invention.

[0046] Description of reference numerals:

[0047] Secondary coil 110 Power module 210

[0048] Secondary resonant capacitor 120 control module 220

[0049] Main control chip 130 H-bridge inverter module 230

[0050] Full-bridge rectifier circuit 131 Primary resonant capacitor 240

[0051] Buck regulator circuit 132 Primary coil 250

[0052] Communication control module 133

[0053] Charge and discharge module 134

[0054] Communication capacitor 140

[0055] Energy storage capacitor 150

[0056] Ignition switch 160

[0057] Ignition transducer element 170 DETAILED DESCRIPTION

[0058] The present invention will be described in detail below with reference to specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those skilled in the art, several changes and improvements can be made without departing from the scope of the present invention. These all fall within the scope of protection of the present invention.

[0059] An intelligent fireworks opening powder electronic ignition system, comprising:

[0060] Electronic ignition control module, used to control the ignition of the package opening powder;

[0061] Intelligent fireworks control system, used to control and power the electronic ignition control module.

[0062] Reference Figure 1 As shown, the present invention designs an intelligent fireworks opening powder electronic ignition control module that does not require on-site wiring. The module is located in the fireworks shell and its structure includes: a secondary coil 110, a secondary resonant capacitor 120, a main control chip 130, a communication capacitor 140, an energy storage capacitor 150, an ignition switch 160, and an ignition transducer element 170.

[0063] in:

[0064] One end of the secondary coil 110 is connected to the secondary resonant capacitor 120, and the other end is connected to the B pin of the main control chip 130. It is used to receive the AC power generated by the primary coil in the control system. The number of turns and diameter of the secondary coil 110 are determined by the size of the fireworks product, and the inductance value is determined accordingly. However, the number of turns should not be less than 10. In one embodiment of the present invention, the number of turns is 30, and the inductance value is 20μH.

[0065] One end of the secondary resonant capacitor 120 is connected to the secondary coil 110, and the other end is connected to the A pin of the main control chip 130. It is used to keep the secondary coil 110 operating in a stable resonant state. Its capacitance should match the operating frequency and the inductance of the secondary coil 110 to achieve a stable resonant state. Assuming the operating frequency is f0 and the inductance of the secondary coil 110 is L2, the capacitance C2 of the secondary resonant capacitor 120 should be:

[0066] 1÷(2·π·f0) 2 ÷L2;

[0067] In one embodiment of the present invention, the capacitance is 100nF;

[0068] The main control chip 130 includes a full-bridge rectifier circuit 131, a step-down voltage regulator circuit 132, a communication control module 133, and a charge-discharge module 134. It is used to rectify the energy received by the secondary coil 110 and control the energy storage capacitor 150 and the ignition switch 160 based on the information received by the secondary coil 110.

[0069] in:

[0070] The full-bridge rectifier circuit 131 is used to convert the AC power received by the coil into a DC power supply. Its two input ports are connected to the A pin and the B pin of the main control chip 130 respectively. Its output is used to supply power to the step-down voltage regulator circuit 132 and the charge-discharge module 134;

[0071] The buck regulator circuit 132 uses the DC power converted by the full-bridge rectifier circuit 131 to generate the low-voltage power required for the chip to work. Its output powers the communication control module 133 and is connected to the VCOM pin of the chip.

[0072] The communication control module 133 is used to demodulate the FSK communication instructions received by the coil and control the charge and discharge module 134 to charge and discharge the energy storage capacitor 150 according to the instructions;

[0073] The communication control module 133 also has a delay time control function accurate to milliseconds, so as to control the ignition switch 160 to be turned on at a specified time according to the delay time programmed in the instruction, thereby achieving precisely controlled ignition;

[0074] The charge and discharge module 134 uses the DC power converted by the full-bridge rectifier circuit 131 to charge and discharge the energy storage capacitor 150 through the VCHG pin of the chip according to the signal of the communication control module 133 .

[0075] The positive end of the communication capacitor 140 is connected to the VCOM pin of the main control chip 130, and the negative end is grounded. It is used to maintain the normal operation of the main control chip 130 during the communication process. Its capacitance should match the current of the main control chip 130. Assume that the working current of the main control chip 130 is I load The minimum voltage required for the main control chip 130 to work properly is V min , the voltage output by the step-down voltage regulator circuit 132 is V reg The delay time from the launch to the opening of the fireworks product is T, and the capacity C of the communication capacitor 140 is com for

[0076] I load ×T÷V reg ;

[0077] In one embodiment of the present invention, the capacitance is 4.7 μF.

[0078] The positive terminal of the energy storage capacitor 150 is connected to the VCHG pin of the main control chip 130, and the negative terminal is grounded. It is used to store the energy required for ignition and is only charged according to the instructions received by the communication module 133 when the firework is ready to be launched. Its capacitance should match the energy required by the ignition transducer element 170 so that the energy released by the ignition transducer element 170 can ignite the opening charge. In one embodiment of the present invention, its capacitance is 220μF.

[0079] The ignition switch 160 has a gate connected to the FIRE pin of the main control chip 130 , a drain connected to the negative terminal of the ignition transducer element 170 , and a source connected to ground. It is used to release energy from the energy storage capacitor 150 to the ignition transducer element 170 under the control of the main control chip 130 .

[0080] The positive terminal of the ignition transducer element 170 is connected to the positive terminal of the energy storage capacitor 150, and the negative terminal is connected to the drain of the ignition switch 160. It is used to convert electrical energy into thermal energy to detonate the opening charge, and can be in the form of an ignition resistor, a bridge wire, a semiconductor bridge, etc.

[0081] like Figure 2 As shown, the present invention also designs an intelligent fireworks control system for use with the above-mentioned module. The system is located in a fireworks launch tube and its structure includes: a power module 210, a control module 220, an H-bridge inverter module 230, a primary resonant capacitor 240, and a primary coil 250.

[0082] in:

[0083] The power module 210 is used to provide a 24V input voltage to the H-bridge inverter module 230 and a 3.3V operating voltage to the control module 220 .

[0084] The control module 220 is used to control the H-bridge inverter module 230, thereby supplying power to the electronic ignition control module. Communication is achieved by adjusting the operating frequency of the H-bridge inverter module 230. This operating frequency should be between 100 kHz and 148.5 kHz. In one embodiment of the present invention, the frequency is 110 kHz and 140 kHz. Communication between the control system and the electronic ignition module is achieved by switching between these two frequencies using FSK modulation, thereby controlling the electronic ignition control module to charge the energy storage capacitor 150 and programming the delay time in the electronic ignition control module.

[0085] The H-bridge inverter module 230 is used to generate an AC signal under the control of the control module 220 and to supply power to the electronic ignition control module through the primary resonant capacitor 240 and the primary coil 250 .

[0086] Primary resonant capacitor 240 is used to maintain a stable resonant state for secondary coil 110. Its capacitance should match the operating frequency and the inductance of primary coil 250 to achieve a stable resonant state. Assuming the operating frequency is f0 and the primary coil inductance 250 is L1, the capacitance C1 of primary resonant capacitor 240 should be 1÷(2·π·f0)²÷L1. In one embodiment of the present invention, its capacitance is 33nF.

[0087] Primary coil 250 supplies power to the electronic ignition module. Its number of turns should be 1 / 4 to 2 / 3 the number of turns of secondary coil 110 to ensure that secondary coil 110 can induce a sufficient voltage to charge the energy storage capacitor. Its diameter should be the same as that of secondary coil 110, with the inductance value determined by the number of turns and diameter. In one embodiment of the present invention, it has 10 turns and an inductance of 7 μH.

[0088] Reference Figure 3As shown, a smart fireworks opening charge electronic ignition method includes:

[0089] Step S1: The control module 220 controls the H-bridge inverter module 230 to generate an AC signal;

[0090] Step S2: transmitting the AC signal to the secondary coil 110;

[0091] Step S3: enabling the secondary coil 110 to receive the AC signal and transmit it to the main control chip 130;

[0092] Step S4: The control module 133 in the main control chip 130 demodulates the received FSK communication instruction, controls the charge and discharge of the energy storage capacitor 150, and sets the delay time;

[0093] Step S5: When the set delay time is reached, the main control chip 130 controls the ignition switch 160 to be turned on, so that the energy of the energy storage capacitor 150 is released to the ignition transducer element 170 to detonate the opening charge.

[0094] The present invention controls the ignition of the opening powder through an electronic ignition module, which can achieve millisecond-accurate opening time control. Compared with the existing method of controlling the opening time through a fuse or a chemical delay powder, it greatly improves the accuracy of the opening height in the time and space of the fireworks performance; it also greatly improves the flexibility of the fireworks system. It is no longer necessary to specially manufacture fireworks with different delays to achieve the effect of opening packages at different heights, saving costs.

[0095] Those skilled in the art will appreciate that, in addition to implementing the system and its various devices, modules, and units provided by the present invention in purely computer-readable program code, it is entirely possible to implement the same functions of the system and its various devices, modules, and units provided by the present invention in the form of logic gates, switches, application-specific integrated circuits, programmable logic controllers, and embedded microcontrollers by logically programming the method steps. Therefore, the system and its various devices, modules, and units provided by the present invention can be considered a hardware component, and the devices, modules, and units included therein for implementing various functions can also be considered as structures within the hardware component; the devices, modules, and units for implementing various functions can also be considered as both software modules implementing the method and structures within the hardware component.

[0096] The above describes specific embodiments of the present invention. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art may make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. The embodiments of this application and the features in the embodiments may be combined with each other in any manner unless there is a conflict.

Claims

1. An intelligent fireworks opening powder electronic ignition system, characterized by: include: Electronic ignition control module, used to control the ignition of the package opening powder; Intelligent fireworks control system, used to control and power the electronic ignition control module.

2. The intelligent fireworks opening powder electronic ignition system according to claim 1 is characterized in that: The electronic ignition control module includes: A secondary coil (110), a secondary resonant capacitor (120), a main control chip (130), a communication capacitor (140), an energy storage capacitor (150), an ignition switch (160), and an ignition transducer element (170); The main control chip (130) comprises an A pin, a B pin, a VCHG pin, a VCOM pin and a FIRE pin; One end of the secondary coil (110) is connected to the secondary resonant capacitor (120), and the other end is connected to the B pin of the main control chip (130); The other end of the secondary resonant capacitor (120) is connected to the A pin of the main control chip (130); The positive electrode of the communication capacitor (140) is connected to the VCOM pin of the main control chip (130), and the negative electrode is grounded; The positive electrode of the energy storage capacitor (150) is connected to the VCHG pin of the main control chip (130), and the negative electrode is grounded; The gate of the ignition switch (160) is connected to the FIRE pin of the main control chip (130), the drain is connected to the negative electrode of the ignition transducer element (170), and the source is grounded; The positive electrode of the ignition energy conversion element (170) is connected to the positive electrode of the energy storage capacitor (150).

3. The intelligent fireworks opening powder electronic ignition system according to claim 2 is characterized in that: The main control chip (130) further includes a full-bridge rectifier circuit (131), a step-down voltage stabilization circuit (132), a communication control module (133), and a charge and discharge module (134); The two input ports of the full-bridge rectifier circuit (131) are respectively connected to the A pin and the B pin of the main control chip (130), and its output is used to supply power to the step-down voltage stabilization circuit (132) and the charge-discharge module (134); The output of the step-down voltage stabilization circuit (132) supplies power to the communication control module (133) and is connected to the VCOM pin of the main control chip (130); The communication control module (133) is connected to the FIRE pin of the main control chip (130); The charging and discharging module (134) uses the DC power source converted by the full-bridge rectifier circuit (131) to charge and discharge the energy storage capacitor (150) through the VCHG pin of the main control chip (130) according to the signal of the communication control module (133).

4. The intelligent fireworks opening powder electronic ignition system according to claim 3 is characterized in that: The intelligent fireworks control system includes: A power module (210), a control module (220), an H-bridge inverter module (230), a primary resonant capacitor (240), and a primary coil (250); The power supply module (210) is used to provide an input voltage for an H-bridge inverter module (230) and an operating voltage for a control module (220); the H-bridge inverter module (230) generates an AC signal under the control of the control module (220), and supplies power to the electronic ignition control module through a primary resonant capacitor (240) and a primary coil (250).

5. The intelligent fireworks opening powder electronic ignition system according to claim 4 is characterized in that: The secondary coil (110) receives the alternating current generated by the primary coil (250) in the intelligent fireworks control system; the main control chip (130) rectifies the alternating current received by the secondary coil (110), and controls the energy storage capacitor (150) and the ignition switch (160) according to the received alternating current signal.

6. The intelligent fireworks opening powder electronic ignition system according to claim 4 is characterized in that: The control module (220) sends instructions to the electronic ignition control module in an FSK modulation mode by adjusting the operating frequency of the H-bridge inverter module (230).

7. The intelligent fireworks opening charge electronic ignition system according to claim 6, characterized in that: The communication control module (133) is used for demodulating the received FSK communication instructions.

8. The intelligent fireworks opening powder electronic ignition system according to claim 7 is characterized in that: The communication control module (133) can also control the ignition switch (160) to be turned on within a preset time according to the delay time programmed in the instruction.

9. The intelligent fireworks opening charge electronic ignition system according to claim 1, characterized in that: The electronic ignition control module is arranged in the firework shell; the intelligent firework control system is arranged in the firework launching tube.

10. An intelligent fireworks opening charge electronic ignition method, based on the intelligent fireworks opening charge electronic ignition system according to any one of claims 1 to 9, characterized in that: include: Step S1: enabling the control module (220) to control the H-bridge inverter module (230) to generate an AC signal; Step S2: transmitting the AC signal to the secondary coil (110); Step S3: enabling the secondary coil (110) to receive an AC signal and transmit it to the main control chip (130); Step S4: enabling the control module (133) in the main control chip (130) to demodulate the received FSK communication instruction, and controlling the charge and discharge of the energy storage capacitor (150), and setting the delay time; Step S5: When the set delay time is reached, the main control chip (130) controls the ignition switch (160) to be turned on, so that the energy of the energy storage capacitor (150) is released to the ignition energy conversion element (170) to detonate the package opening charge.

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