Fire extinguishing bomb detonating device

Abstract

The utility model belongs to the technical field of electronic circuits, and particularly discloses a fire extinguishing bomb detonating device which comprises a main controller, a crystal oscillator module, a communication module and a power supply module, the main controller is electrically connected with the crystal oscillator module, the communication module, the power supply module and an electronic detonating device of a fire extinguishing bomb, and the crystal oscillator module provides clock signals for the main controller. The communication module is used for establishing communication butt joint between the external cannon body and the main controller and transmitting a trigger signal of the external cannon body to the main controller, and the main controller is used for timing according to the clock signal after receiving the trigger signal and transmitting a detonation signal to the electronic detonator after the timing time reaches the set time. The fire extinguishing bomb can be detonated in the air at regular time, the effect that the fire extinguishing bomb is detonated in the air at the end close to the fire to extinguish the fire is achieved, the problem of flowing fire splashing caused by landing explosion of the fire extinguishing bomb can be effectively solved, the fire behavior is prevented from being further expanded, and the fire extinguishing bomb is more efficient and safer to use.

Description

Technical Field

[0001] The utility model belongs to the technical field of electronic circuits, and in particular relates to a fire extinguishing bomb detonating device. Background Art

[0002] Fire extinguisher bombs are firefighting products designed to be thrown or otherwise introduced into a fire scene to help extinguish it. Different types of fire extinguisher bombs have different usage methods and effectiveness. For example, throwable fire extinguisher bombs are launched into a burning fire, causing the bomb to explode, releasing the fire extinguishing agent to quickly and effectively extinguish the fire.

[0003] When using existing fire extinguishing bombs, they are usually launched into the fire scene and then explode on the ground to extinguish the fire. This kind of explosion on the ground can easily cause the flowing fire in the fire scene to splash, especially when encountering chemical flowing fire splash, which will further expand the fire. The safety and effectiveness still need to be improved. Utility Model Content

[0004] The purpose of the utility model is to provide a fire extinguishing bomb detonating device to solve the above problems existing in the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides a fire extinguishing bomb detonating device, comprising a main controller, a crystal oscillator module, a communication module and a power supply module, wherein the main controller is electrically connected to the crystal oscillator module, the communication module and the power supply module respectively, and the main controller is electrically connected to the electronic detonator of the fire extinguishing bomb, the power supply module is used to supply power to the main controller and the communication module, the crystal oscillator module is used to provide a clock signal to the main controller, the communication module is used to establish communication docking between an external gun body and the main controller, and transmit the trigger signal of the external gun body to the main controller, the main controller is used to perform timing according to the clock signal after receiving the trigger signal, and transmit the detonation signal to the electronic detonator after the timing time reaches the set time.

[0007] When it is used, the device can be installed in a fire extinguishing bomb, and the main controller is electrically connected to the electronic detonator of the fire extinguishing bomb. When the fire extinguishing bomb is loaded in the barrel of the launching gun, the communication module establishes a communication connection between the external gun body and the main controller, and the external gun body outputs a trigger signal to the communication module. The communication module transmits the trigger signal to the main controller. After receiving the trigger signal, the main controller performs timing according to the clock signal of the crystal oscillator module, and transmits a detonation signal to the electronic detonator after the timing time reaches the set time, so that the fire extinguishing bomb is detonated in the air at a fixed time after being launched to extinguish the fire, thereby solving the problem of flowing fire splashing caused by the fire extinguishing bomb falling to the ground and exploding.

[0008] In one possible design, the device includes a chip motherboard and a battery compartment. The main controller, crystal oscillator module, communication module, and power module are integrated on the chip motherboard. The battery compartment houses a battery for providing power to the power module. In use, the chip motherboard and battery compartment allow the main controller, crystal oscillator module, communication module, and power module to be integrated on the chip motherboard. The battery compartment houses a battery for power supply, facilitating integrated use of the device, reducing its size, and making it easier to install and use.

[0009] In a possible design, the main controller adopts an STM32 series microcontroller.

[0010] In one possible design, the crystal oscillator module includes an 8 MHz crystal oscillator and a 32.768 KHz crystal oscillator.

[0011] In one possible design, the communication module includes a communication line and an RS485 transmission module. The communication line is connected to the copper ring at the tail of the fire extinguishing bomb. The RS485 transmission module is respectively connected to the communication line and the main controller. The RS485 transmission module includes a MAX485ECSA low-power transmitter and receiver.

[0012] In one possible design, the power supply module includes a first DC power supply circuit, a DC output control circuit and a second DC power supply circuit. The first DC power supply circuit is used to generate a 12V DC power supply, the DC output control circuit is used to control the output of the 12V DC power supply, and the second DC power supply circuit is used to convert the 12V DC power supply into a 3.3V DC power supply for output.

[0013] In one possible design, the communication module and the main controller are further connected to a decoupling capacitor bank, which can effectively reduce electromagnetic interference and accelerate circuit response.

[0014] In a possible design, the main controller is also connected to a debugging serial port. When used, the main controller can be debugged through the debugging serial port.

[0015] Beneficial effect: The utility model can detonate the fire extinguishing bomb in the air at a fixed time after the fire extinguishing bomb is launched, so as to achieve the effect of detonating the fire extinguishing bomb in the air near the fire end to extinguish the fire. It can effectively solve the problem of flowing fire splashing caused by the explosion of the fire extinguishing bomb on the ground, prevent the fire from further spreading, make the use of the fire extinguishing bomb more efficient and safe, and the device is easy to install and use, low in cost, and suitable for popularization and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is the circuit diagram of the main controller;

[0018] Figure 2 This is the circuit diagram of the crystal oscillator module;

[0019] Figure 3 This is the circuit diagram of the RS485 transmission module;

[0020] Figure 4 It is a structural diagram of the device of the utility model;

[0021] Figure 5 is a circuit diagram of a first DC power supply circuit;

[0022] Figure 6 1 is a circuit diagram of a DC output control circuit;

[0023] Figure 7 is a circuit diagram of a second DC power supply circuit;

[0024] Figure 8 It is the circuit diagram of the decoupling capacitor group;

[0025] Figure 9 This is the circuit diagram of the debugging serial port.

[0026] In the picture: 1. Chip motherboard; 2. Battery box. DETAILED DESCRIPTION

[0027] It should be noted that the description of these embodiments is intended to aid understanding of the present invention and does not constitute a limitation of the present invention. The specific structural and functional details disclosed herein are merely intended to describe exemplary embodiments of the present invention. However, the present invention may be embodied in many alternative forms, and should not be construed as being limited to the embodiments set forth herein.

[0028] It should be understood that, unless otherwise specified or limited, the term "connection" should be understood in a broad sense. For example, it can mean a fixed connection, a detachable connection, or an integral connection; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in the embodiments based on specific circumstances.

[0029] In the following description, certain details are provided to facilitate a complete understanding of the example embodiments. However, one of ordinary skill in the art will appreciate that the example embodiments can be practiced without these specific details. For example, a system may be shown in a block diagram to avoid obscuring the example with unnecessary detail. In other embodiments, well-known processes, structures, and techniques may be shown without unnecessary detail to avoid obscuring the embodiment.

[0030] Example:

[0031] This embodiment provides a fire extinguishing bomb detonating device, including a main controller, a crystal oscillator module, a communication module and a power supply module. The main controller is electrically connected to the crystal oscillator module, the communication module and the power supply module respectively, and the main controller is electrically connected to the electronic detonator of the fire extinguishing bomb. The power supply module is used to supply power to the main controller and the communication module. The crystal oscillator module is used to provide a clock signal to the main controller. The communication module is used to establish communication docking between an external gun body and the main controller, and transmit the trigger signal of the external gun body to the main controller. The main controller is used to perform timing according to the clock signal after receiving the trigger signal, and transmit the detonation signal to the electronic detonator after the timing time reaches the set time.

[0032] like Figure 1 As shown, the main controller can adopt STM32 series microcontrollers, such as STM32F103C6T6A microcontrollers. Thanks to its ARM Cortex-M-based core, STM32 series microcontrollers have excellent performance in processing capabilities, high performance, and low power consumption, which makes it easy to cope with various complex application scenarios. Whether it is data processing or real-time control, STM32 can provide stable and efficient processing capabilities. Figure 2 As shown, the crystal oscillator module includes an 8MHz crystal oscillator and a 32.768KHz crystal oscillator. The 8MHz crystal oscillator is the main crystal oscillator of the STM32 series microcontroller, and the 32.768KHz crystal oscillator is a clock crystal oscillator. It is an oscillator based on a quartz crystal and is relatively easy to divide in order to generate a 1-second clock frequency. The communication module includes a communication line and an RS485 transmission module. The communication line is connected to the copper ring at the tail of the fire extinguisher bomb, and the RS485 transmission module is respectively connected to the communication line and the main controller. Figure 3 As shown, the RS485 transmission module includes a MAX485ECSA low-power transmitter and receiver, which can realize low-power transmission and reception of 485 signals.

[0033] In specific implementation, the device can be installed in the cylindrical hole at the end of the fire extinguishing bomb's tail fin. Two wires are connected from the two ignition connector pins in the fire extinguishing bomb to the detonator in the agent chamber. The main controller is electrically connected to the fire extinguishing bomb's electronic detonator, and the communication line of the communication module is connected and welded to the copper ring at the end of the fire extinguishing bomb. When the fire extinguishing bomb is loaded into the barrel of the launch gun and the barrel is completely closed, the copper ring at the end of the fire extinguishing bomb communicates with the communication rod on the gun body, allowing the external gun body to communicate with the main controller. After communication recognition, the gun body equipment can set the time and send a trigger signal to the main controller. After receiving the trigger signal, the main controller counts according to the clock signal of the crystal oscillator module. When the time reaches the set time, it transmits the detonation signal to the electronic detonator. This allows the fire extinguishing bomb to detonate in the air at a fixed time after launch to extinguish the fire, solving the problem of flowing fire splashing caused by the fire extinguishing bomb hitting the ground and exploding.

[0034] like Figure 4 As shown, the device includes a chip motherboard 1 and a battery box 2. The main controller, crystal oscillator module, communication module, and power module are integrated on the chip motherboard 1. The battery box 2 contains a battery for providing power to the power module. By providing the chip motherboard 1 and battery box 2, the main controller, crystal oscillator module, communication module, and power module are integrated on the chip motherboard 1. The battery box 2 is provided with a battery for powering, which facilitates the integrated use of the device, reduces the size of the device, and makes it more convenient to install and use.

[0035] like Figures 5 to 7 As shown, the power supply module includes a first DC power supply circuit, a DC output control circuit and a second DC power supply circuit. The first DC power supply circuit is used to generate a 12V DC power supply, the DC output control circuit is used to control the output of the 12V DC power supply, and the second DC power supply circuit is used to convert the 12V DC power supply into a 3.3V DC power supply for output. The first DC power supply circuit includes an MT3608 DC boost chip, which can boost the battery power to a 12V DC power supply. The DC output control circuit can be provided with a corresponding switch tube to realize the DC output control of the first DC power supply circuit, and the DC output control circuit can be provided with a corresponding LED indicator to indicate the 12V DC output control status. The second DC power supply circuit includes a MAX1724EZK33+T power management chip, and the second DC power supply circuit can be provided with a corresponding LED indicator to indicate the 3.3V DC power supply status.

[0036] The communication module and the main controller are also connected as follows Figure 8 The decoupling capacitor group shown in the figure includes several parallel decoupling capacitors. When implemented, the decoupling capacitor group can effectively reduce electromagnetic interference and accelerate circuit response. Figure 9The debugging serial port shown is used to load programs and debug parameters of the main controller during specific implementation.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A fire extinguishing bomb detonating device, characterized in that: It includes a main controller, a crystal oscillator module, a communication module and a power supply module. The main controller is electrically connected to the crystal oscillator module, the communication module and the power supply module respectively, and the main controller is electrically connected to the electronic detonator of the fire extinguishing bomb. The power supply module is used to supply power to the main controller and the communication module. The crystal oscillator module is used to provide a clock signal to the main controller. The communication module is used to establish communication docking between the external gun body and the main controller, and transmit the trigger signal of the external gun body to the main controller. The main controller is used to perform timing according to the clock signal after receiving the trigger signal, and transmit the detonation signal to the electronic detonator after the timing time reaches the set time.

2. A fire extinguishing bomb detonating device according to claim 1, characterized in that: The device comprises a chip mainboard (1) and a battery box (2); the main controller, crystal oscillator module, communication module and power module are integrated on the chip mainboard (1); a battery is provided in the battery box (2); the battery is used to provide power to the power module.

3. A fire extinguishing bomb detonating device according to claim 1, characterized in that: The main controller adopts an STM32 series microcontroller.

4. A fire extinguishing bomb detonating device according to claim 1, characterized in that: The crystal oscillator module includes an 8MHz crystal oscillator and a 32.768KHz crystal oscillator.

5. The fire extinguishing bomb detonating device according to claim 1, characterized in that: The communication module includes a communication line and an RS485 transmission module. The communication line is connected to the copper ring at the tail of the fire extinguishing bomb. The RS485 transmission module is respectively connected to the communication line and the main controller. The RS485 transmission module includes a MAX485ECSA low-power transmitter and receiver.

6. The fire extinguishing bomb detonating device according to claim 1, characterized in that: The power supply module includes a first DC power supply circuit, a DC output control circuit, and a second DC power supply circuit. The first DC power supply circuit is used to generate a 12V DC power supply, the DC output control circuit is used to control the output of the 12V DC power supply, and the second DC power supply circuit is used to convert the 12V DC power supply into a 3.3V DC power supply for output.

7. The fire extinguishing bomb detonating device according to claim 1, characterized in that: The communication module and the main controller are also connected to a decoupling capacitor group.

8. The fire extinguishing bomb detonating device according to claim 1, characterized in that: The main controller is also connected to a debugging serial port.

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