Remote voice igniter for fireworks and crackers

Abstract

The firework and cracker remote voice igniter comprises a transmitting end and a receiving end, and the transmitting end comprises a lithium battery, a low-power-consumption Bluetooth chip, a pickup silicon microphone, an audio decoding chip and a small loudspeaker broadcaster. The receiving end comprises a lithium battery, a high-power power supply chip, a low-power-consumption Bluetooth chip, a pickup silicon microphone, an acceleration sensor and an ignition tungsten filament, the transmitting end and the receiving end realize long-distance communication by adopting a Bluetooth wireless communication technology, and the lithium battery is connected with the high-power power supply chip and is electrically connected with the ignition tungsten filament. The firework and cracker igniter can be applied to ignition of fireworks and crackers, and mainly solves the problems that an existing firework and cracker igniter is unsafe, high in power consumption, short in control distance, free of ignition progress detection, poor in ignition operation experience and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of fireworks and firecrackers, in particular to a remote voice igniter for fireworks and firecrackers. Background Technique

[0002] Traditional ignition methods for fireworks and firecrackers usually use matches, lighters or hand-held igniters, which pose certain safety risks. In recent years, some remote ignition devices have emerged on the market, but most of them have poor ignition operation experience, high power consumption, short control distance, and lack the function of remotely detecting the ignition progress. Therefore, it is necessary to develop a new type of remote voice igniter to improve the safety of setting off fireworks and firecrackers and the ignition operation experience. Content of the Utility Model

[0003] In view of the above problems, the utility model aims to provide a remote voice igniter for fireworks and firecrackers.

[0004] To achieve the technical purpose, the solution of the utility model is: a remote voice igniter for fireworks and firecrackers, including a receiving end for receiving an ignition signal and sending a power supply signal to an ignition tungsten wire; a transmitting end for collecting and obtaining a voice command and sending an ignition signal to the receiving end; the transmitting end is composed of a lithium battery, a low-power Bluetooth chip, a sound pickup silicon microphone, an audio decoding chip and a small speaker; the receiving end is composed of a lithium battery, a high-power power supply chip, a low-power Bluetooth chip, a sound pickup silicon microphone, an acceleration sensor and an ignition tungsten wire. The transmitting end and the receiving end are wirelessly connected through a low-power Bluetooth chip, and the lithium battery is connected to the high-power power supply chip and electrically connected to the ignition tungsten wire.

[0005] Preferably, buttons for control and indicator lights for indicating the working state are provided on both the transmitting end and the receiving end.

[0006] Preferably, a power management IC and a charging interface are provided on both the transmitting end and the receiving end. The charging interface is connected to the power management IC and supplies power to the low-power Bluetooth chip, the sound pickup silicon microphone, the audio decoding chip, the small speaker, the mini audio library, the high-power power supply chip, the acceleration sensor and the ignition tungsten wire.

[0007] Preferably, the transmitting end uses an I2S interface signal transmission for the sound pickup silicon microphone and the audio decoding chip, the receiving end uses an I2S interface signal transmission for the sound pickup silicon microphone, and the receiving end uses an I2C interface signal transmission for the acceleration sensor.

[0008] Preferably, the model of the sound pickup silicon microphone at the transmitting end is INMP441, the model of the low-power Bluetooth chip is nRF54L15, and the model of the high-power power supply chip is SGM6611C.

[0009] The beneficial effects of the utility model are applied in the ignition of fireworks and firecrackers, mainly solving the problems of previous fireworks and firecracker igniters being unsafe, having high power consumption, having a short control distance, having no ignition progress detection, and having a poor ignition operation experience. Improving the safety of setting off fireworks and firecrackers: adopting a remote ignition method avoids the risk of direct contact with the fire source. Improving the fun of setting off fireworks and firecrackers: controlling the ignition through voice increases the entertainment and interactivity. Lower power consumption than similar devices: adopting a low-power Bluetooth chip and an efficient power management solution prolongs the battery life of the device. Longer control distance than similar devices: adopting BLE-long-range wireless communication technology achieves a longer control distance. Compared with similar devices, it has the function of remotely detecting the ignition progress of fireworks and firecrackers: the ignition progress information is fed back in real time by the receiving end, so that users can remotely understand the ignition status of the fireworks and firecrackers. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a system control flow chart of the utility model;

[0011] Figure 2 This is a power supply circuit diagram of the utility model;

[0012] Figure 3 This is the circuit diagram of the low-power Bluetooth chip of the utility model;

[0013] Figure 4 This is a circuit diagram of the audio decoding chip of the utility model;

[0014] Figure 5 This is the circuit diagram of the sound pickup silicon microphone of the utility model;

[0015] Figure 6 This is the circuit diagram of the high-power power supply chip of the utility model;

[0016] Figure 7 This is the circuit diagram of the acceleration sensor of the utility model;

[0017] Figure 8 This is the key circuit diagram of the utility model;

[0018] Figure 9 This is the indicator light circuit diagram of the utility model. DETAILED DESCRIPTION

[0019] The utility model of the present application is further described in detail below in conjunction with the accompanying drawings and specific embodiments. In order to clearly and completely describe the technical solution, the following embodiments are selected for illustration; based on the contents recorded in this application, other embodiments obtained without creative work are all within the scope of protection of this utility model.

[0020] In the following embodiments, it should be noted that the orientation or positional relationships such as "upper", "lower", "left", "right", "inner", "outer", "top / bottom", etc. in the terms are all based on the orientation or positional relationships shown in the drawings. It is only for the convenience of clearly describing this embodiment, rather than indicating or implying that the device or element referred to must have a specific orientation. Therefore, it should not be construed as a limitation to this application.

[0021] As Figure 1 shown, a specific embodiment of the present utility model is a remote voice igniter for fireworks, which includes a transmitting end and a receiving end. The outer shells of the transmitting end and the receiving end are made of flame-retardant and anti-drop materials to improve the safety and durability of the device.

[0022] Please also refer to Figures 1 - 5 , the transmitting end includes a 360 mA lithium battery, a Nordic fourth-generation low-power Bluetooth chip nRF54L15 with a process of 22 nm, a pick-up silicon microphone INMP441 with an accuracy of 16K 16-bit interface, an audio decoding chip PCM5102 with an accuracy of 16K 16-bit interface, a 0.25 W small speaker, and a mini audio library dedicated to mini offline countdown counting developed by Shenzhen Hao Shang Hao Information Technology Co., Ltd. The above components together realize the functions of remote communication, voice control, and sending ignition instructions.

[0023] Please also refer to Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 and Figure 7 , the receiving end includes a 360 mA lithium battery, an SGM6611C high-power power chip, a Nordic fourth-generation low-power Bluetooth chip nRF54L15 with a process of 22 nm, a pick-up silicon microphone INMP441 with an accuracy of 16K 16-bit interface, a Gsensor MC3416 acceleration sensor, and an ignition tungsten wire. The above components together realize the functions of receiving ignition instructions, detecting the burning of the fuse and the falling action, and ignition.

[0024] Please also refer to Figure 1 , the transmitting end and the receiving end use BLE-long-range wireless communication technology to achieve long-distance communication. The lithium battery is connected to the high-power power chip and electrically connected to the ignition tungsten wire. People can remotely control the transmitting end to send instructions to the receiving end installed on the ignition fuse of the fireworks, so as to achieve the purpose of remote ignition.

[0025] Please also refer to Figure 1 , Figure 4 , Figure 5 and Figure 7, at the transmitting end, the sound pickup silicon microphone and the audio decoding chip use the I2S interface for signal transmission. At the receiving end, the sound pickup silicon microphone uses the I2S interface for signal transmission, and the acceleration sensor at the receiving end uses the I2C interface for signal transmission. A fast, accurate, and stable signal transmission channel is adopted to ensure the stability of the operation of the transmitting end and the receiving end, and improve the safety of fireworks display.

[0026] Please also refer to Figures 1 - 7 , after the sound pickup silicon microphone at the transmitting end records sound, it transmits the audio data to the low-power Bluetooth chip through the I2S interface, and through the mini audio library at the transmitting end, it identifies the transmitted audio data. At the same time, it plays the sound through the small speaker, and sends the signal to the receiving end through the BLE-long-range wireless communication technology. At the receiving end, the high-power power chip is used to ignite the ignition tungsten wire. After ignition, the acceleration sensor at the receiving end detects the dropping action to judge that the ignition fuse is burned out. At the same time of ignition, the sound pickup silicon microphone at the receiving end detects the sound of the ignition fuse burning, and sends the ignition success signal to the transmitting end through the BLE long range wireless communication technology, facilitating people to learn the ignition information in the first time;

[0027] The simple steps of the specific ignition operation are as follows: The operator first places the fireworks in a safe area and stays away to a safe viewing area. The operator can issue a launch command to the transmitting end, such as "3 2 1 ignition". The transmitting end sends the ignition command to the receiving end. After receiving the ignition command, the receiving end replies to the transmitting end once per second according to the dropping action after ignition of the ignition device and the sound of the fuse burning picked up. After receiving the reply from the receiving end, the transmitting end broadcasts "ignition success" by voice, and starts counting and reporting numbers according to the burning situation at the receiving end and waits for the fireworks to detonate. After the receiving end detects detonation or exceeds the detonation time, it sends it to the transmitting end, and the transmitting end stops reporting numbers.

[0028] As an embodiment provided by the present utility model, please also refer to Figure 8 and Figure 9 , both the transmitting end and the receiving end are provided with buttons and indicator lights. Through the buttons, the volume of the transmitting end and the receiving end can be adjusted. The adopted indicator lights can display the working states of the transmitting end and the receiving end.

[0029] As another embodiment provided by the present utility model, both the transmitting end and the receiving end are provided with an nPM1300 power management IC and a charging interface, and can be charged through the Type-C interface, which is convenient and practical. The charging interface is connected to the power management IC and supplies power to the low-power Bluetooth chip, the sound pickup silicon microphone, the audio decoding chip, the small speaker, the mini audio library, the high-power power chip, the acceleration sensor, and the ignition tungsten wire. The power management IC is connected to the high-power power chip and supplies power to the ignition tungsten wire in a high-voltage form.

[0030] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any minor modifications, equivalent replacements, and improvements made to the above embodiments based on the technical essence of the present utility model shall be included within the protection scope of the technical solution of the present utility model.

Claims

1. Fireworks and firecrackers remote voice igniter, characterized in that: It includes a receiving end, which is used to receive an ignition signal and send a power supply signal to the ignition tungsten wire; The transmitter is used to collect voice commands and send ignition signals to the receiver; The transmitting end is composed of a lithium battery, a low-power Bluetooth chip, a sound pickup silicon microphone, an audio decoding chip and a small speaker broadcaster, and the receiving end is composed of a lithium battery, a high-power power chip, a low-power Bluetooth chip, a sound pickup silicon microphone, an acceleration sensor and an ignition tungsten filament. The transmitting end and the receiving end are wirelessly connected via the low-power Bluetooth chip, and the lithium battery is connected to the high-power power chip and electrically connected to the ignition tungsten filament.

2. The fireworks and firecrackers remote voice igniter according to claim 1, characterized in that: The transmitting end and the receiving end are both provided with buttons for control and indicator lights for indicating working status.

3. The fireworks and firecrackers remote voice igniter according to claim 1, characterized in that: The transmitting end and the receiving end are both provided with a power management IC and a charging interface. The charging interface is connected to the power management IC and supplies power to the low-power Bluetooth chip, the sound pickup silicon microphone, the audio decoding chip, the small speaker broadcaster, the mini audio library, the high-power power chip, the acceleration sensor and the ignition tungsten filament.

4. The fireworks and firecrackers remote voice igniter according to claim 1, characterized in that: The transmitting end, the sound pickup silicon microphone and the audio decoding chip adopt I2S interface signal transmission, the receiving end sound pickup silicon microphone adopts I2S interface signal transmission, and the receiving end acceleration sensor adopts I2C interface signal transmission.

5. The fireworks and firecrackers remote voice igniter according to claim 1, characterized in that: The model of the sound pickup silicon microphone of the transmitting end is INMP441, the model of the low-power Bluetooth chip is nRF54L15, and the model of the high-power power supply chip is SGM6611C.

Images