Electronic firework ignition system applied to unmanned aerial vehicle

Abstract

The utility model provides an electronic firework ignition system applied to an unmanned aerial vehicle, which comprises a power supply for providing electric energy; the electronic ignition plate is used for igniting fireworks; the control module is electrically connected with the power supply and the electronic ignition plate and is used for controlling ignition of the electronic ignition plate; wherein the control module comprises a first voltage conversion sub-module, one end of the first voltage conversion sub-module is electrically connected with the power supply, and the first voltage conversion sub-module is used for converting power supply voltage into first voltage; one end of the constant current sub-module is electrically connected with the other end of the first voltage conversion sub-module, the other end of the constant current sub-module is electrically connected with the electronic ignition plate, and the constant current sub-module is used for providing constant ignition current; one end of the second voltage conversion sub-module is electrically connected with the power supply, and the second voltage conversion sub-module is used for converting the power supply voltage into a second voltage; and the control chip sub-module is electrically connected with the second voltage conversion module, is in wireless connection with the electronic ignition plate, and is used for controlling the ignition time sequence and the ignition condition of the electronic ignition plate.

Description

TECHNICAL FIELD

[0001] The utility model relates to electronic fireworks technical field more particularly, it relates to a kind of electronic fireworks ignition system applied to unmanned aerial vehicle. BACKGROUND

[0002] In today's celebration activities and some specific occasions, fireworks performance is an important way to add atmosphere. The traditional fireworks rely on gunpowder and other chemical substances to be fired, and there are certain safety hazards, such as the possibility of causing fires, causing accidental injuries to personnel, and causing environmental pollution. With the development of science and technology, electronic fireworks have emerged as the times require, which simulates the effect of fireworks by using electronic ignition devices, and gradually gains favor in the market.

[0003] In the application scenario of electronic fireworks, when it is installed on an aircraft for high-altitude fireworks performance, the performance requirements of the electronic ignition device are extremely high. The existing electronic ignition device on the aircraft often has defects in circuit design. Usually, the ignition circuit and other electronic components of the aircraft share power supply and circuit system. When the electronic ignition board is working, the voltage of the entire circuit system will fluctuate due to the large current at the moment of ignition. This voltage fluctuation is extremely detrimental to the flight control system of the aircraft, because the flight control system needs stable voltage supply to ensure its accurate control signal output. Once the flight control voltage fluctuates due to excessive ignition current, the flight control system may receive incorrect signals, which may cause the aircraft to lose control, and even cause serious accidents such as aircraft explosion, which not only causes damage to equipment, but also may endanger the safety of surrounding personnel and property. Therefore, it is of great practical significance and market demand to develop a fireworks electronic ignition device that can effectively prevent flight control voltage fluctuation caused by excessive ignition current and ensure the safe and stable operation of the aircraft. SUMMARY

[0004] The utility model aims at providing a kind of electronic fireworks ignition system applied to unmanned aerial vehicle, to solve the problem that in the application scenarios such as aircraft carrying electronic fireworks for performance, due to the excessive ignition current of electronic ignition board at the moment of ignition, and then cause flight control voltage fluctuation, eventually lead to aircraft loss of control or aircraft explosion.

[0005] The technical scheme adopted by the utility model to solve its technical problems is: a kind of electronic fireworks ignition system applied to unmanned aerial vehicle, comprising:

[0006] Power supply for providing electric energy;

[0007] Electronic ignition board for igniting fireworks;

[0008] Control module, electrically connected with the power supply and the electronic ignition board, for controlling the ignition of the electronic ignition board;

[0009] The control module comprises:

[0010] The first voltage conversion submodule is electrically connected at one end to the power supply and is configured to convert the power supply voltage into a first voltage.

[0011] The constant current submodule is electrically connected at one end to the other end of the first voltage conversion submodule and is electrically connected at the other end to the electronic ignition board and is configured to provide a constant ignition current.

[0012] The second voltage conversion submodule is electrically connected at one end to the power supply and is configured to convert the power supply voltage into a second voltage.

[0013] The control chip submodule is electrically connected to the second voltage conversion submodule and is wirelessly connected to the electronic ignition board and is configured to control the ignition timing and ignition conditions of the electronic ignition board.

[0014] Preferably, the control chip submodule is a control chip configured to control the ignition timing and ignition conditions of the electronic ignition board.

[0015] Preferably, the first voltage conversion submodule is a DCDC step-down circuit configured to obtain power from the power supply and step down the voltage to provide a suitable stable low voltage for the electronic ignition board.

[0016] Preferably, the second voltage conversion submodule is an LDO step-down circuit configured to obtain power from the power supply and step down the voltage to provide a suitable stable low voltage for the control chip.

[0017] Preferably, the constant current submodule is a constant current circuit, specifically comprising an operational amplifier and a MOS tube, and is configured to adjust the input current of the electronic ignition board.

[0018] Preferably, the constant current submodule further comprises an overcurrent protection circuit configured to automatically cut off the power supply when the current exceeds a preset value to prevent damage to the system.

[0019] Preferably, the control module further comprises a serial port submodule, specifically a serial port interface circuit, which is connected at both ends to the LDO step-down circuit and the control chip and is configured to control the communication between the control chip and external devices.

[0020] Preferably, the control module further comprises a detection submodule, specifically a detection circuit, which is connected at both ends to the constant current circuit and the electronic ignition board and is configured to monitor the current and voltage states of the electronic ignition board.

[0021] Preferably, the control module further comprises a PWM signal output circuit, the output end of which is electrically connected to the control chip and is configured to adjust the duty cycle of the PWM signal to control the ignition intensity or adjust the frequency of the PWM signal to control the ignition frequency.

[0022] Preferably, the control module further comprises a state indicating circuit, specifically comprising a buzzer and an indicator light, the output ends of which are electrically connected with the control chip, the indicator light is used for displaying the working state of the system, and the buzzer is used for prompting different states or faults through different sounds.

[0023] The utility model discloses the beneficial effects are:

[0024] Compared with the prior art, the electronic firework ignition system applied to the unmanned aerial vehicle is provided, the independent DC-DC step-down circuit and the constant current circuit are specially arranged for the electronic ignition board, the current supply of the electronic ignition board is reasonably regulated and controlled, the large current generated when the electronic ignition board works avoids causing adverse effects on the voltage of the whole aircraft circuit system, the flight control system can work under the stable voltage environment, the probability of the dangerous conditions such as loss of control or explosion of the aircraft due to the electronic firework ignition is greatly reduced, and the safety and reliability of the aircraft when carrying out relevant activities by the electronic firework are improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a kind of electronic firework ignition system module schematic diagram applied to the unmanned aerial vehicle of the utility model one embodiment;

[0026] Figure 2 It is the data flow chart of the unmanned aerial vehicle formation that the utility model one embodiment carries out air firework performance.

[0027] The drawings are only used for example description, and can not be understood as the limitation of the utility model;In order to better illustrate the embodiment, some components of the drawings can be omitted, enlarged or reduced, and do not represent the size of actual product;For those skilled in the art, it can be understood that some well-known structures in the drawings and their description can be omitted. DETAILED DESCRIPTION

[0028] The utility model will be further explained in detail in combination with the drawings and specific embodiments.

[0029] As Figure 1 The utility model discloses a kind of electronic firework ignition systems applied to unmanned aerial vehicle, comprising:

[0030] Power supply, for providing electric energy;

[0031] Electronic ignition board, for igniting fireworks;

[0032] Control module, with the power supply and the electronic ignition board electric connection, for controlling the ignition of the electronic ignition board;

[0033] Wherein, the control module includes:

[0034] The first voltage conversion submodule is electrically connected with the power supply at one end and is used for converting the power supply voltage into a first voltage.

[0035] The constant current submodule is electrically connected with the other end of the first voltage conversion submodule at one end and is electrically connected with the electronic ignition board at the other end and is used for providing a constant ignition current.

[0036] The second voltage conversion submodule is electrically connected with the power supply at one end and is used for converting the power supply voltage into a second voltage.

[0037] The control chip submodule is electrically connected with the second voltage conversion module and is wirelessly connected with the electronic ignition board and is used for controlling the ignition timing and the ignition condition of the electronic ignition board.

[0038] In the above scheme, the power supply, the electronic ignition board and the control module including the first voltage conversion submodule, the constant current submodule, the second voltage conversion submodule and the control chip submodule are organically combined, stable power supply and precise ignition control are realized, and the application requirements of the unmanned aerial vehicle for performing the firework launching in the air are met. The electronic ignition system provided by the application overcomes the defects of the traditional ignition mode, such as being easily affected by voltage fluctuation and insufficient reliability, and ensures that the firework is accurately ignited at a specified timing. The technical effect lies in that the constant current of the ignition board input is maintained and the ignition success rate is enhanced through the multi-stage voltage conversion and the constant current output, and the ignition timing and the condition are flexibly adjusted through the wireless control mode of the control chip, so that the safety and controllability are obviously improved.

[0039] Preferably, the control chip submodule is a control chip, which controls the ignition timing and the ignition condition of the electronic ignition board.

[0040] In the above scheme, the control chip submodule is a control chip, and the control chip is used to accurately control the ignition timing and the ignition condition of the electronic ignition board. The control chip receives the stable power supply provided by the second voltage conversion submodule and sends the control instruction to the electronic ignition board through the wireless communication mode, so as to flexibly set the ignition time, the ignition sequence, the ignition condition and other parameters, accurately control the complex firework performance effect, adjust the ignition parameters according to the environmental conditions and improve the system safety.

[0041] Preferably, the first voltage conversion submodule is a DCDC step-down circuit, which obtains the power from the power supply and performs step-down to provide a suitable stable low voltage for the electronic ignition board.

[0042] In the above scheme, the first voltage conversion sub-module is specifically a DCDC step-down circuit, which realizes efficient and stable voltage conversion and provides a suitable low voltage for the electronic ignition board; the DCDC step-down circuit obtains power from the power supply and performs step-down processing, and its output end is connected with the constant current sub-module; by using the high conversion efficiency characteristic of the DCDC step-down circuit, energy loss is reduced, and the electronic ignition board obtains stable and suitable low voltage, thereby avoiding ignition abnormalities caused by excessively high or low voltage.

[0043] Preferably, the second voltage conversion sub-module is an LDO step-down circuit, which obtains power from the power supply and performs step-down processing to provide a suitable and stable low voltage for the control chip.

[0044] In the above scheme, the second voltage conversion sub-module is specifically an LDO step-down circuit, which provides a low-noise and high-stability working voltage for the control chip; the LDO step-down circuit obtains power from the power supply and performs step-down processing, and its output end is connected with the control chip; by using the low-noise and high-stability characteristics of the LDO step-down circuit, a pure and stable working voltage is provided for the control chip, thereby guaranteeing the stable operation of the control chip and avoiding control abnormalities caused by voltage fluctuation.

[0045] Preferably, the constant current sub-module is a constant current circuit, specifically an operational amplifier + MOS tube, which is used to adjust the input current of the electronic ignition board.

[0046] In the above scheme, the constant current sub-module is specifically an operational amplifier + MOS tube; by using the negative feedback characteristic of the operational amplifier, the MOS tube and the sampling resistor are matched to realize accurate control of the input current of the electronic ignition board, thereby ensuring the reliability and safety of ignition; the input end of the constant current circuit is connected with the output end of the first voltage conversion sub-module, and the output end of the constant current circuit is connected with the electronic ignition board; by using the constant current output characteristic of the constant current circuit, the electronic ignition board obtains a constant ignition current, thereby avoiding ignition failure or abnormal combustion of fireworks caused by current fluctuation, and improving the reliability and safety of the ignition process.

[0047] Preferably, the constant current sub-module further includes an overcurrent protection circuit which automatically cuts off the power supply when the current exceeds a preset value, thereby preventing system damage.

[0048] In the above scheme, the constant current sub-module is provided with an overcurrent protection circuit; the overcurrent protection circuit integrates a high-precision current sensor and a rapid response logic judgment unit; when the current sensor detects that the current value flowing through the circuit exceeds a pre-set safety threshold, a signal is immediately transmitted to the logic judgment unit; the logic judgment unit rapidly reacts and triggers the cutting device through a specific control logic to automatically cut off the power supply in a very short time, thereby effectively avoiding conditions such as overheating and burning of circuit elements caused by current overload, and preventing the system from being damaged by overcurrent in all directions, thereby greatly improving the stability and reliability of the system.

[0049] Preferably, the control module further includes a serial port submodule, specifically a serial port interface circuit, with its two ends connected to the LDO step-down circuit and the control chip, respectively, for communication between the control chip and external devices.

[0050] In the above scheme, the control module also includes a serial port submodule, specifically a serial port interface circuit, which enables communication between the control chip and external devices, enhancing the system's scalability and flexibility. The serial port interface circuit is connected to an LDO step-down circuit and the control chip at its two ends, respectively, and is responsible for power supply and data transmission. Through the serial communication protocol, it enables data exchange between the control chip and external devices such as ground station computers, thereby realizing functions such as remote control, parameter setting, and data reading, improving the system's flexibility and scalability.

[0051] Preferably, the control module further includes a detection submodule, specifically a detection circuit, with its two ends connected to the constant current circuit and the electronic ignition board, respectively, for monitoring the current and voltage status of the electronic ignition board.

[0052] In the above scheme, the control module also includes a detection submodule, specifically a detection circuit, which monitors the current and voltage status of the electronic ignition board in real time to achieve closed-loop control and improve the safety and reliability of the system. The two ends of the detection circuit are connected to the output of the constant current circuit and the electronic ignition board, respectively, to collect the current and voltage signals of the electronic ignition board in real time and convert them into signals that the control chip can recognize. This allows the control chip to determine the working status of the electronic ignition board based on the feedback information and take protective measures, such as cutting off the power supply, in abnormal situations, thereby improving the safety and reliability of the system.

[0053] Preferably, the control module further includes a PWM signal output circuit, the output of which is electrically connected to the control chip, for adjusting the duty cycle of the PWM signal to control the ignition intensity or adjusting the frequency of the PWM signal to control the ignition frequency.

[0054] In the above scheme, the control module also includes a PWM signal output circuit, which realizes precise control of ignition timing by outputting a pulse width modulation signal. The output terminal of the PWM signal output circuit is electrically connected to the control chip, receives the control signal from the control chip, and generates a PWM signal with a corresponding duty cycle according to the signal. By adjusting the duty cycle of the PWM signal, the heating power and heating time of the electronic ignition plate can be precisely controlled, thereby achieving more precise ignition control.

[0055] Preferably, the control module further includes a status indication circuit, specifically including a buzzer and an indicator light, the output of which is electrically connected to the control chip. The indicator light is used to display the system's working status, and the buzzer is used to indicate different statuses or faults through different sounds.

[0056] In the above scheme, the control module further comprises a state indicating circuit, which intuitively displays the working state of the system, so as to facilitate the user or operator to understand the running condition of the system; the output end of the state indicating circuit is electrically connected with the control chip, receives the control signal of the control chip, and controls the indicator light such as LED or other display device according to the signal to indicate the working state of the system in different states such as bright, off, flickering and the like; the buzzer is used to prompt different states or faults such as power state, ignition state, fault state and the like through different sounds, so as to improve the operability and maintainability of the system.

[0057] In an embodiment provided in the present application, as shown in the figure, taking the air fireworks performance of the unmanned aerial vehicle formation as an example, the specific process is as follows: Figure 2

[0058] Preparation stage: the ground control station pre-sets the flight trajectory, fireworks ignition time sequence, ignition order and other parameters of each unmanned aerial vehicle through programming software, and uploads these parameters to the control chip submodule of the control module of each unmanned aerial vehicle through the serial port submodule.

[0059] Take-off stage: the unmanned aerial vehicle takes off according to the preset flight program, and flies to the specified position according to the preset trajectory.

[0060] Standby stage: after the unmanned aerial vehicle reaches the specified position, it enters the hovering state and waits for the ignition instruction.

[0061] Ignition stage: the ground control station sends the ignition instruction to the specified unmanned aerial vehicle through wireless communication according to the performance needs; after the control chip submodule receives the instruction, it starts the PWM signal output circuit at the specific time point according to the preset ignition time sequence; the PWM signal output circuit outputs the PWM signal with a specific duty ratio, which is amplified by the driving circuit on the electronic ignition board, and then controls the heating element on the electronic ignition board to start heating; the first voltage conversion submodule reduces the voltage of the main power supply of the unmanned aerial vehicle to the voltage required by the electronic ignition board, and the constant current submodule ensures that the current flowing through the electronic ignition board remains constant; the detection submodule monitors the current and voltage of the electronic ignition board in real time, and feeds back the data to the control chip submodule.

[0062] Ignition confirmation: when the detection submodule detects that the current or voltage of the electronic ignition board reaches the preset threshold, it indicates that the fireworks have been successfully ignited; the control chip submodule stops outputting the PWM signal, and displays the ignition success through the LED lamp; at the same time, the control chip submodule sends the feedback information of the ignition success to the ground control station through wireless communication.

[0063] Performance stage: multiple unmanned aerial vehicles ignite electronic fireworks in turn according to the preset program, and form various patterns and dynamic effects in the air.

[0064] ​Return phase: after the performance, the unmanned aerial vehicle returns and lands automatically according to the preset program.

[0065] In the above scheme, the safe, reliable and accurate electronic fireworks ignition system is applied to the aircraft platform, realizing the function of the aircraft carrying the electronic fireworks to perform or work in the air; the aircraft can realize the accurate ignition control of the electronic fireworks in the air by integrating the electronic fireworks ignition system, thereby expanding the application field of the aircraft and meeting the diversified air operation requirements.

[0066] Obviously, the above embodiments of the utility model are only examples for clearly illustrating the utility model, and are not a limitation on the embodiments of the utility model. For ordinary skilled in the art, other different forms of changes or changes can be made on the basis of the above description. Here, all the embodiments are not exhausted. Any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.

Claims

1. An electronic firework ignition system applied to a drone, characterized in that, The application relates to a control module for a firework, which comprises the following parts: a power supply for providing electric energy; an electronic ignition board for igniting fireworks; a control module electrically connected with the power supply and the electronic ignition board for controlling the ignition of the electronic ignition board; wherein the control module comprises: a first voltage conversion sub-module having one end electrically connected with the power supply for converting the voltage of the power supply into a first voltage; a constant current sub-module having one end electrically connected with the other end of the first voltage conversion sub-module and the other end electrically connected with the electronic ignition board for providing a constant ignition current; a second voltage conversion sub-module having one end electrically connected with the power supply for converting the voltage of the power supply into a second voltage; a control chip sub-module electrically connected with the second voltage conversion module and wirelessly connected with the electronic ignition board for controlling the ignition timing and ignition condition of the electronic ignition board. 2.The electronic firework ignition system applied to the unmanned aerial vehicle according to claim 1, wherein, The control chip sub-module is a control chip for controlling the ignition timing and ignition condition of the electronic ignition board.

3. The electronic firework ignition system applied to the unmanned aerial vehicle according to claim 2, characterized in that, The first voltage conversion sub-module is a DCDC voltage reduction circuit for obtaining electric energy from the power supply and reducing the voltage to provide a suitable and stable low voltage for the electronic ignition board.

4. The electronic firework ignition system applied to the unmanned aerial vehicle according to claim 2, characterized in that, The second voltage conversion sub-module is an LDO voltage reduction circuit for obtaining electric energy from the power supply and reducing the voltage to provide a suitable and stable low voltage for the control chip.

5. The electronic firework ignition system for unmanned aerial vehicles according to claim 1, wherein, The constant current sub-module comprises a constant current circuit, specifically an operational amplifier and a MOS tube, for adjusting the input current of the electronic ignition board. 6.The electronic firework ignition system applied to the unmanned aerial vehicle according to claim 1, wherein, The constant current sub-module further comprises an overcurrent protection circuit for automatically cutting off the power supply when the current exceeds a preset value to prevent system damage. 7.The electronic firework ignition system applied to the unmanned aerial vehicle according to claim 4, wherein, The control module further comprises a serial port sub-module, specifically a serial port interface circuit, having two ends respectively connected with the LDO voltage reduction circuit and the control chip for communication between the control chip and external devices. 8.The electronic firework ignition system applied to the unmanned aerial vehicle according to claim 5, wherein, The control module further comprises a detection sub-module, specifically a detection circuit, having two ends respectively connected with the constant current circuit and the electronic ignition board for monitoring the current and voltage state of the electronic ignition board. 9.The electronic firework ignition system applied to the unmanned aerial vehicle according to claim 2, wherein, The control module further comprises a PWM signal output circuit having an output end electrically connected with the control chip for adjusting the duty cycle of the PWM signal to control the ignition intensity or adjusting the frequency of the PWM signal to control the ignition frequency. 10.The electronic firework ignition system applied to the unmanned aerial vehicle according to claim 2, wherein, The control module further comprises a state indication circuit, specifically a buzzer and an indicator lamp, having an output end electrically connected with the control chip, wherein the indicator lamp is used for displaying the working state of the system and the buzzer is used for prompting different states or faults through different sounds.

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