CN111854539A - Detonation control system and detonation method for fire extinguishing bomb - Google Patents
Detonation control system and detonation method for fire extinguishing bomb Download PDFInfo
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- CN111854539A CN111854539A CN202010780979.4A CN202010780979A CN111854539A CN 111854539 A CN111854539 A CN 111854539A CN 202010780979 A CN202010780979 A CN 202010780979A CN 111854539 A CN111854539 A CN 111854539A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B3/00—Blasting cartridges, i.e. case and explosive
- F42B3/10—Initiators therefor
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C19/00—Hand fire-extinguishers in which the extinguishing substance is expelled by an explosion; Exploding containers thrown into the fire
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
- F42B12/02—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
- F42B12/36—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B3/00—Blasting cartridges, i.e. case and explosive
- F42B3/10—Initiators therefor
- F42B3/12—Bridge initiators
- F42B3/121—Initiators with incorporated integrated circuit
- F42B3/122—Programmable electronic delay initiators
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Abstract
The invention relates to the technical field of fire extinguishing bombs, and discloses a detonation control system and a detonation method for a fire extinguishing bomb. The whole system has simple circuit control mode and high fire-extinguishing and explosion-proof safety performance.
Description
Technical Field
The invention relates to the technical field of fire extinguishing bombs, in particular to a detonation control system and a detonation method for a fire extinguishing bomb.
Background
If a fire disaster happens in a high-rise building, fire extinguishing equipment such as an aerial ladder, a lifting vehicle and the like is limited by height due to too high height of the floor, and the fire disaster occurring floor is difficult to reach. The unmanned aerial vehicle-mounted fire extinguishing system is high in maneuverability, is not influenced by fire extinguishing height and surrounding environment, and can solve the world problem that high-rise buildings cannot extinguish fire quickly and effectively. For an unmanned aerial vehicle-mounted fire extinguishing bomb system, the initiation work of the fire extinguishing bomb is usually realized by utilizing an electronic detonator, and the electronic detonator comprises a leg wire, a control circuit board with a delay chip, an ignition explosive head and initiating explosive. When the control circuit board is used, a bus for outputting a detonation signal is connected with the pin wire, then a detonation serial signal is output, the delay chip delays for a preset time, and then the control circuit board transmits the detonation signal to the ignition charge head through the bridge wire, so that detonation control is realized. In the existing detonation control system, the defects of unstable charging and discharging of a charging and discharging control circuit, low use safety performance of an electronic detonator and the like exist.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a detonation control system and a detonation method for a fire extinguishing bomb.
In order to achieve the above purpose, the invention provides the following technical scheme:
the utility model provides a detonation control system for fire extinguishing bomb, includes MCU control circuit, power detects power supply circuit, steps up and explodes control circuit all with MCU control circuit signal of telecommunication connects, power detects power supply circuit and is used for lasting power supply and power detection to MCU control circuit, step up and explode control circuit and be used for realizing the control of discharging of charging to electric capacity in order to explode the explosive.
Further, still include physical address identification circuit and RS485 communication circuit, physical address identification circuit with MCU control circuit signal of telecommunication connection, physical address identification circuit is used for setting up the physical address of every section fire extinguishing bomb, RS485 communication circuit with MCU control circuit signal of telecommunication connection, MCU control circuit passes through RS485 communication circuit realizes with the information transmission of unmanned aerial vehicle mainboard and.
The MCU control circuit comprises a chip U1, a PB0 port, a PA1 port and a PA7 port of the chip U1 are connected with the boost detonation control circuit and used for achieving instruction transmission of the chip U1 and the boost detonation control circuit, PB 3-PB 5 ports of the chip U1 are connected with the physical address identification circuit and used for achieving that the chip U1 receives address information of the physical address identification circuit, a PB6 port and a PA0-WKUP port of the chip U1 are connected with the power supply detection power supply circuit and used for achieving signal transmission of the chip U1 and the power supply detection power supply circuit, and PA 8-PA 10 ports of the chip U1 are connected with the RS485 communication circuit and used for achieving information transmission of the chip U1 and the RS485 communication circuit.
The physical address identification circuit comprises an interface P2, pins 2 to 5 of the interface P2 are correspondingly connected with pins 30 to 33 of the chip U1 through an RC filter circuit, and the RC filter circuit is used for eliminating interference signals generated in the process of dialing switches.
In the present invention, preferably, the power supply detection power supply circuit includes an interface P1 and a battery BT1, pin 6 of the interface P1 is connected to a chip U2 through a zener diode D4, the chip U2 is configured to convert a 12V external power supply into 3.3V, the 3.3V power supply is connected to a VDD power supply through a capacitor C5, an electrolytic capacitor C6, and a zener diode D3, the VDD power supply is configured to supply power to a single chip microcomputer, the battery BT1 is connected to a MOS transistor Q1 through a zener diode D1, the zener diode D1 is connected to a triode Q2 through a resistor R4, and the triode Q2 is connected to a pin34 of the chip U1 through a resistor R3 and a resistor R1.
In the present invention, preferably, the boost detonation control circuit includes a battery BT2, a chip U3, and an interface P3, where the battery BT2 is connected to a pin No. 5 of the chip U3, a pin No. 4 of the chip U3 is connected to a pin No. 8 of the chip U1 through a resistor R11, a pin No. 1 of the chip U3 is connected to a resistor R12 and a resistor R13 through a capacitor C8 and a zener diode D7 and grounded, the zener diode D7 is connected in parallel to two electrolytic capacitors C9 and C10 in sequence and grounded, the capacitor C10 is connected to a pin No. 2 of the interface P3, the pin No. 1 of the interface P3 is connected to a MOS tube Q3 through a resistor R16, and the MOS tube Q3 is connected to a pin No. 15 of the chip U1 through a resistor R14.
The RS485 communication circuit comprises a chip U4, pins 6 and 7 of the chip U4 are connected with pins 3 and 4 of the interface P1 in a pair mode, pins 1, 3 and 4 of the chip U4 are correspondingly connected with pins 22, 20 and 21 of the chip U1, and a pin 2 of the chip U4 is grounded through a resistor R35.
In the invention, preferably, pins 1 and 2 of the interface P1 are correspondingly connected with a connection switch KEY-a and a connection switch KEY-B, the connection switch KEY-a is connected with a pin 13 of the chip U1 through a resistor R31, and the connection switch KEY-B is connected with the VDD power supply.
The No. 2 pin of the chip U1 is connected with a passive crystal oscillator Y1, and the passive crystal oscillator Y1 is used for providing a stable clock signal for the chip U1.
A detonation method for a fire extinguishing bomb is characterized in that,
firstly, a system is powered on, the physical address of the MCU control circuit is set by using the physical address identification circuit, and an electrolytic capacitor C9 in the boost detonation control circuit starts to charge;
secondly, the MCU control circuit sends a delay instruction, the fire extinguishing bomb starts to be bound, namely, enters a countdown starting preparation stage, and the state of the fire extinguishing bomb is detected by the power supply detection circuit and is transmitted to the MCU control circuit;
thirdly, after the binding is finished, if the detection data obtained by the MCU control circuit are normal, issuing a detonation instruction, wherein the fire extinguishing bomb has a detonation function, and if the detection data are abnormal, performing a sixth step;
fourthly, after the fire extinguishing bomb is separated, the MCU control circuit detects that the 12V external power supply, the connection switch KEY-A and the connection switch KEY-B are disconnected together, and then the fire extinguishing bomb starts to count down;
fifthly, after the fire extinguishing bomb is delayed, the MCU control circuit controls an electrolytic capacitor C9 in the boosting detonation control circuit to start discharging, electric energy is converted into heat energy, and the heating bridge wire detonates explosives to realize detonation of the fire extinguishing bomb;
and sixthly, if the detonation is finished or the detection data of the MCU control circuit is abnormal, the MCU control circuit resets the single chip microcomputer, and each circuit returns to the initial state.
Compared with the prior art, the invention has the beneficial effects that:
(1) the power supply detection power supply circuit is arranged to detect whether the power supply of the MCU control circuit is normal or not, and two switching modes of an external power supply and the battery BT1 are adopted to supply power to the MCU control circuit continuously, so that the working stability of the MCU control circuit is ensured. Meanwhile, the detonation of the electronic detonator is realized by arranging a boosting detonation control circuit, and the electrolytic capacitor C9 is continuously charged and stored with energy by adopting two switching modes of an external power supply and the battery BT2, so that the energy storage process is stable and controllable. The discharge control of the electrolytic capacitor is realized through the matching of the MOS tube Q3 and the MCU control circuit, so that the circuit response is fast, and the reliability and the safety of the process of fire-extinguishing and explosion-proof are improved. The whole system has simple circuit control mode and high fire-extinguishing and explosion-proof safety performance.
(2) Through setting up RS485 communication circuit, realize unmanned aerial vehicle mainboard and MCU control circuit's communication to increase CRC check-up data in MCU control circuit, so that RS485 communication circuit and MCU control circuit data transmission's stability.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a block diagram of the overall architecture of the present invention;
FIG. 2 is an overall circuit diagram of the present invention;
FIG. 3 is a circuit diagram of the MCU control circuit and the physical address identifying circuit of the present invention;
FIG. 4 is a circuit diagram of the power supply detection supply circuit of the present invention;
FIG. 5 is a circuit diagram of the boost detonation control circuit of the present invention;
fig. 6 is a circuit diagram of an RS485 communication circuit of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 to 6, a preferred embodiment of the present invention provides a detonation control system and a detonation method for a fire extinguishing bomb, including an MCU control circuit, a power supply detection and supply circuit, and a boost detonation control circuit, where the power supply detection and supply circuit and the boost detonation control circuit are both in electrical signal connection with the MCU control circuit, the power supply detection and supply circuit is used to continuously supply power to the MCU control circuit and detect the power supply, and the boost detonation control circuit is used to realize charging and discharging control of a capacitor to detonate explosives.
Specifically, the power supply detection power supply circuit is arranged to detect whether the power supply of the MCU control circuit is normal or not, and two switching modes of an external power supply and the battery BT1 are adopted to supply power to the MCU control circuit continuously, so that the working stability of the MCU control circuit is ensured. Meanwhile, the detonation of the electronic detonator is realized by arranging a boosting detonation control circuit, and the electrolytic capacitor C9 is continuously charged and stored with energy by adopting two switching modes of an external power supply and the battery BT2, so that the energy storage process is stable and controllable. The discharge control of the electrolytic capacitor is realized through the matching of the MOS tube Q3 and the MCU control circuit, so that the circuit response is fast, and the reliability and the safety of the process of fire-extinguishing and explosion-proof are improved.
Further, still include physical address identification circuit and RS485 communication circuit in this embodiment, physical address identification circuit with MCU control circuit signal connection, physical address identification circuit is used for setting up the physical address of every section fire extinguishing bomb, RS485 communication circuit with MCU control circuit signal connection, RS485 communication circuit is used for realizing unmanned aerial vehicle mainboard and MCU control circuit's information transmission.
Specifically, in the invention, the physical address identification circuit sets the physical address of the MCU control circuit through the dial switch, and the internal program of the MCU control circuit identifies whether each pin is grounded so as to detect whether the state of each section of fire extinguishing bomb is normal. Through RS458 communication circuit, realize unmanned aerial vehicle main control panel and MCU control circuit's communication to increase CRC check-up data in the internal program in MCU control circuit, so that RS485 communication circuit and MCU control circuit data transmission's stability.
In this implementation, as shown in fig. 3, the MCU control circuit includes a chip U1, the model of the chip U1 is STM32F103T8U6, the PB0 port, the PA1 port, and the PA7 port of the chip U1 are connected to the boost detonation control circuit for implementing instruction transmission between the chip U1 and the boost detonation control circuit, the PB3 to PB5 ports of the chip U1 are connected to the physical address identification circuit for implementing that the chip U1 receives address information of the physical address identification circuit, the PB6 port and the PA0-WKUP port of the chip U1 are connected to the power detection supply circuit for implementing signal transmission between the chip U1 and the power detection supply circuit, and the PA8 to PA10 ports of the chip U1 are connected to the RS485 communication circuit for implementing information transmission between the chip U1 and the RS485 communication circuit.
Further, a PB2 port of the chip U1 is connected with an indicator light LED1, and the indicator light LED1 is used for operation indication of the chip U1. And the No. 2 pin of the chip U1 is connected with a passive crystal oscillator Y1, and the passive crystal oscillator Y1 is used for providing a stable clock signal for the chip U1 so as to realize accurate timing. The No. 4 pin of the chip U1 is connected with a VDD power supply through a resistor R27, the No. 4 pin of the chip U1 is a reset pin, and when the chip U1 detects a fault or after detonation work is completed, the chip U1 controls the VDD power supply to be disconnected so that each single chip microcomputer can be restored to an initial state. The No. 25 and No. 28 pins of the chip U1 are connected with an interface P5, and an interface P5 is used for connecting a data transmission interface of a computer and downloading a program to meet the software control of the whole control system.
The physical address identification circuit comprises an interface P2, an interface P2 is used for connecting a dial switch, a pin 1 of the interface P2 is connected with a VDD power supply, a pin 2 of the interface P2 is connected with a pin 30 of a chip U1 through a resistor R22 and a capacitor C16, a pin3 of the interface P2 is connected with a pin 31 of a chip U1 through a resistor R21 and a capacitor C15, a pin 4 of the interface P2 is connected with a pin 32 of the chip U1 through a resistor R20 and a capacitor C14, a pin 5 of the interface P2 is connected with a pin 33 of the chip U1 through a resistor R19 and a capacitor C13, and the resistor R22, the capacitor C16, the resistor R21, the capacitor C15, the resistor R20, the capacitor C14, the resistor R19 and the capacitor C13 form an RC filter circuit which is used for eliminating interference signals generated in the dial switch process.
As shown in fig. 4, the power supply detection and supply circuit includes an interface P1 and a battery BT1, the interface P1 is used for connecting an external device, pins 1 and 2 of the interface P1 are correspondingly connected with a connection switch KEY-a and a connection switch KEY-B, the connection switch KEY-a is connected with a pin 13 of the chip U1 through a resistor R31, the connection switch KEY-B is connected with the VDD power supply, the connection switch KEY-a and the connection switch KEY-B are used for providing a timing signal, and pins 3 and 4 of the interface P1 are connected with the RS485 communication circuit. The No. 6 pin of the interface P1 is connected with a chip U2 through a voltage stabilizing diode D4, the chip U2 is used for converting an external power supply of 12V into 3.3V, the 3.3V power supply is connected with a VDD power supply through a capacitor C5, an electrolytic capacitor C6 and a voltage stabilizing diode D3, the VDD power supply is used for supplying power to a single chip microcomputer, the battery BT1 is connected with an MOS tube Q1 through the voltage stabilizing diode D1, the voltage stabilizing diode D1 is connected with a triode Q2 through a resistor R4, and the triode Q2 is connected with a 34 pin of the chip U1 through a resistor R3 and a resistor R1. Specifically, after a 12V POWER supply provided by the outside supplies POWER, the voltage is stabilized by a chip U2 to form a 3.3V dc voltage to supply POWER to a chip U1, and the 12V voltage is divided by resistors R6 and R7 to obtain a POWER-12V voltage signal, which is transmitted to pin No. 7 of the chip U1 to detect the 12V POWER supply. After the chip U1 starts, the C _ BAT signal of pin34 of the chip U1 outputs 3.3V high level, at the moment, the triode Q2 works in a saturation region, the MOS tube Q1 is conducted, the battery BT1 outputs 3V voltage, at the moment, the voltage output by the battery BT1 is smaller than the voltage 3.3V output by the chip U2, and the power supply of the chip U1 is provided by the chip U2. After the fire extinguishing bomb is separated, the 12V external power supply is disconnected, the connection switch KEY-A, KEY-B is disconnected, the power supply of the chip U1 is provided by the battery BT1, and the working stability of the chip U1 is guaranteed.
In this embodiment, as shown in fig. 5, the boost detonation control circuit includes a battery BT2, a chip U3, and an interface P3, where the battery BT2 is connected to a pin No. 5 of the chip U3, a pin No. 4 of the chip U3 is connected to a pin No. 8 of the chip U1 through a resistor R11, the chip U3 is a boost chip with a model number SDB628, a pin No. 1 of the chip U3 is connected to a resistor R12 and a resistor R13 through a capacitor C8 and a zener diode D7, the zener diode D7 is connected in parallel to two electrolytic capacitors C9 and a capacitor C10 in sequence, the capacitor C10 is connected to a pin No. 2 of the interface P3, the interface P3 is used for connecting a heater bridge wire to achieve detonation of explosives, a pin No. one of the interface P3 is connected to a MOS transistor Q16 through a resistor R16, and the MOS transistor Q16 is connected to a pin No. 15 of the chip U16 through a resistor R16. The 12V power supply is connected to an electrolytic capacitor C9 through a zener diode D5. Specifically, when 12V starts to supply power, the 12V power supply starts to charge the C9 electrolytic capacitor, and after the chip U1 starts to operate, the 16V _ EN signal output from pin 8 of U1 is at a high level, and the voltage of the rear battery BT2 is boosted by the chip U3 to output a voltage of about 12V. When the 12V power supply is powered off, the electrolytic capacitor C9 is continuously powered by the battery BT 2. After the time delay is finished, a U1-PIN34 signal output by a No. 15 PIN of the chip U1 is in a high level, the MOS tube Q3 is conducted, the electrolytic capacitor C9 discharges, electric energy is converted into heat energy, and the heating bridge wire reaches an explosion point to explode explosives.
As shown in fig. 6, RS485 communication circuit includes chip U4, chip U4's No. 6, No. 7 pin with interface P1's No. 3, No. 4 pin correspond and are connected, and P1's No. 3, No. 4 pin are used for connecting unmanned aerial vehicle's mainboard to realize the communication of RS485 communication circuit and unmanned aerial vehicle's main control board, chip U4's No. 1, 3, No. 4 pin with chip U1's 22, 20, 21 pin correspond and are connected, in order to realize the communication of RS485 communication circuit and chip U1, No. 2 pin of chip U4 is through resistance R35 ground connection.
In the present embodiment, the method for initiating a fire extinguishing bomb is as follows:
firstly, a 12V external power supply is connected when the system is powered on, an electrolytic capacitor C9 in the boosting detonation control circuit starts to charge, a dial switch identification circuit in the physical address identification circuit is used for acquiring the physical address of each section of fire extinguishing bomb and transmitting data to the MCU control circuit, and an internal program of the MCU control circuit identifies whether each pin is grounded so as to judge whether the internal circuit of the fire extinguishing bomb is normally connected.
Secondly, after detecting that the wiring of an internal circuit of the fire extinguishing bomb is normal, the MCU control circuit sends a delay instruction, the fire extinguishing bomb starts to be bound, namely, the preparation stage of starting countdown is started, the state of the fire extinguishing bomb is detected through the power supply detection and supply circuit and transmitted to the MCU control circuit, the MCU control circuit judges whether the fire extinguishing bomb is normal or not according to the comparison of the state information of the fire extinguishing bomb and a preset value, if the fire extinguishing bomb is normal, the third step is carried out, and if the fire extinguishing bomb is abnormal, the sixth step is carried out;
thirdly, after the binding is finished, if the detection data obtained by the MCU control circuit are normal, a detonation instruction is issued, the fire extinguishing bomb is separated, the 12V external power supply, the connection switch KEY-A and the connection switch KEY-B are disconnected together, and the MCU control circuit starts detonation countdown after detecting a disconnection signal;
fourthly, after the detonation countdown is finished, the MCU control circuit controls an electrolytic capacitor C9 in the boosting detonation control circuit to start discharging, electric energy is converted into heat energy, and the heating bridge wire detonates explosives to realize detonation of the fire extinguishing bomb;
and fifthly, if the detonation is finished or the detection data of the MCU control circuit is abnormal, the MCU control circuit controls the single chip microcomputer to reset, the VDD power supply is disconnected, each circuit restores to the initial state, and the detonation is stopped.
The above description is intended to describe in detail the preferred embodiments of the present invention, but the embodiments are not intended to limit the scope of the claims of the present invention, and all equivalent changes and modifications made within the technical spirit of the present invention should fall within the scope of the claims of the present invention.
Claims (10)
1. The detonation control system for the fire extinguishing bomb is characterized by comprising an MCU control circuit, a power supply detection and supply circuit and a boosting detonation control circuit, wherein the power supply detection and supply circuit and the boosting detonation control circuit are in electric signal connection with the MCU control circuit, the power supply detection and supply circuit is used for continuously supplying power to the MCU control circuit and detecting the power supply, and the boosting detonation control circuit is used for realizing charging and discharging control on a capacitor to detonate explosives.
2. The detonation control system for the fire extinguishing bomb according to claim 1, further comprising a physical address identification circuit and an RS485 communication circuit, wherein the physical address identification circuit is in electrical signal connection with the MCU control circuit, the physical address identification circuit is used for setting a physical address of each section of the fire extinguishing bomb, the RS485 communication circuit is in electrical signal connection with the MCU control circuit, and the MCU control circuit realizes information transmission with an unmanned aerial vehicle main board through the RS485 communication circuit.
3. The detonation control system for the fire extinguishing bomb according to claim 2, wherein the MCU control circuit comprises a chip U1, the PB0 port, the PA1 port and the PA7 port of the chip U1 are connected with the boost detonation control circuit for realizing command transmission of a chip U1 and the boost detonation control circuit, the PB3 to PB5 ports of the chip U1 are connected with the physical address identification circuit for realizing that the chip U1 receives address information of the physical address identification circuit, the PB6 port and the PA0-WKUP port of the chip U1 are connected with the power supply detection circuit for realizing signal transmission of the chip U1 and the power supply detection circuit, and the PA8 to PA10 ports of the chip U1 are connected with the RS485 communication circuit for realizing information transmission of the chip U1 and the RS485 communication circuit.
4. The detonation control system for the fire extinguishing bomb according to claim 3, wherein the physical address identification circuit comprises an interface P2, pins 2 to 5 of the interface P2 are correspondingly connected with pins 30 to 33 of the chip U1 through an RC filter circuit, and the RC filter circuit is used for eliminating interference signals generated in a toggle switch process.
5. The detonation control system for the fire extinguishing bomb according to claim 4, wherein the power supply detection power supply circuit comprises an interface P1 and a battery BT1, a pin No. 6 of the interface P1 is connected with a chip U2 through a voltage stabilizing diode D4, the chip U2 is used for converting a 12V external power supply into 3.3V, the 3.3V power supply is connected with a VDD power supply through a capacitor C5, an electrolytic capacitor C6 and a voltage stabilizing diode D3, the VDD power supply is used for supplying power to a single chip microcomputer, the battery BT1 is connected with a MOS transistor Q1 through a voltage stabilizing diode D1, the voltage stabilizing diode D1 is connected with a triode Q2 through a resistor R4, and the triode Q2 is connected with a pin34 of the chip U1 through a resistor R3 and a resistor R1.
6. The detonation control system for the fire extinguishing bomb according to claim 5, wherein the boosting detonation control circuit comprises a battery BT2, a chip U3 and an interface P3, the battery BT2 is connected with a No. 5 pin of the chip U3, a No. 4 pin of the chip U3 is connected with a No. 8 pin of the chip U1 through a resistor R11, a No. 1 pin of the chip U3 is connected with a resistor R12 and a resistor R13 through a capacitor C8 and a zener diode D7 to be grounded, the zener diode D7 is sequentially connected in parallel with two electrolytic capacitors C9 to be grounded and a capacitor C10 to be grounded, the capacitor C10 is connected with a No. 2 pin of the interface P3, a No. 1 pin of the interface P3 is connected with a MOS tube Q3 through a resistor R16, and the MOS tube Q3 is connected with a No. 15 pin of the chip U1 through a resistor R14.
7. The detonation control system for the fire extinguishing bomb according to claim 6, wherein the RS485 communication circuit comprises a chip U4, pins 6 and 7 of the chip U4 are correspondingly connected with pins 3 and 4 of the interface P1, pins 1, 3 and 4 of the chip U4 are correspondingly connected with pins 22, 20 and 21 of the chip U1, and pin 2 of the chip U4 is grounded through a resistor R35.
8. The detonation control system for the fire extinguishing bomb according to claim 5, wherein pins 1 and 2 of the interface P1 are correspondingly connected with a switch KEY-A and a connection switch KEY-B, the connection switch KEY-A is connected with a pin 13 of a chip U1 through a resistor R31, and the connection switch KEY-B is connected with the VDD power supply.
9. The detonation control system for a fire extinguishing bomb according to claim 3,
the No. 2 pin of the chip U1 is connected with a passive crystal oscillator Y1, and the passive crystal oscillator Y1 is used for providing a stable clock signal for the chip U1.
10. A method of detonation for a fire extinguishing bomb including a detonation control system as claimed in any one of claims 2 to 9,
firstly, a 12V external power supply is connected, a physical address of each section of fire extinguishing bomb is obtained by using the physical address recognition circuit, data are transmitted to the MCU control circuit, the MCU control circuit reads data information and judges whether the wiring of an internal circuit of the fire extinguishing bomb is normal or not, and an electrolytic capacitor C9 in the boosting detonation control circuit starts to charge while the fire extinguishing bomb is electrified;
secondly, after the fact that the wiring of an internal circuit of the fire extinguishing bomb is normal is detected, the MCU control circuit sends a delay instruction to enter a countdown starting preparation stage, the state of the fire extinguishing bomb is detected through the power supply detection power supply circuit and is transmitted to the MCU control circuit, the MCU control circuit judges whether the fire extinguishing bomb is normal or not according to the comparison of the state information of the fire extinguishing bomb and a preset value, if the fire extinguishing bomb is normal, the third step is carried out, and if the fire extinguishing bomb is abnormal, the sixth step is carried out;
thirdly, after the fire extinguishing bomb is separated, the 12V external power supply, the connection switch KEY-A and the connection switch KEY-B are disconnected together, and the MCU control circuit starts detonation countdown after detecting a disconnection signal;
fourthly, after the detonation countdown is finished, the MCU control circuit controls an electrolytic capacitor C9 in the boosting detonation control circuit to start discharging, electric energy is converted into heat energy, and the heating bridge wire detonates explosives to realize detonation of the fire extinguishing bomb;
and fifthly, if the detonation is finished or the detection data of the MCU control circuit is abnormal, the MCU control circuit resets the single chip microcomputer, and each circuit restores to the initial state.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010780979.4A CN111854539A (en) | 2020-08-06 | 2020-08-06 | Detonation control system and detonation method for fire extinguishing bomb |
| AU2021323150A AU2021323150B2 (en) | 2020-08-06 | 2021-07-09 | Detonation control system and detonation method for fire extinguisher ball |
| PCT/CN2021/105510 WO2022028205A1 (en) | 2020-08-06 | 2021-07-09 | Detonation control system and detonation method for fire extinguisher ball |
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| CN202010780979.4A CN111854539A (en) | 2020-08-06 | 2020-08-06 | Detonation control system and detonation method for fire extinguishing bomb |
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| Country | Link |
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| CN (1) | CN111854539A (en) |
| AU (1) | AU2021323150B2 (en) |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113008087A (en) * | 2021-04-16 | 2021-06-22 | 山东龙翼航空科技有限公司 | Laser guidance projection fire extinguishing bomb |
| WO2022028205A1 (en) * | 2020-08-06 | 2022-02-10 | 苏州一路连科科技有限公司 | Detonation control system and detonation method for fire extinguisher ball |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115235303B (en) * | 2022-07-26 | 2023-11-28 | 上海芯跳科技有限公司 | Anti-interference method and system for electronic detonator |
| CN115096151B (en) * | 2022-08-24 | 2022-11-08 | 山西宸润隆科技有限责任公司 | High-voltage digital circuit controlled electronic detonator without initiating explosive |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201488669U (en) * | 2009-09-08 | 2010-05-26 | 北京维深数码科技有限公司 | Digital electronic detonator control chip |
| KR101174636B1 (en) * | 2010-05-20 | 2012-08-21 | 국방과학연구소 | Explosion delaying apparatus for fuze and method thereof |
| CN102278924B (en) * | 2010-06-11 | 2013-08-07 | 南京理工大学 | Intelligent detonation control system and method |
| CN109217459A (en) * | 2018-09-19 | 2019-01-15 | 广州市中海达测绘仪器有限公司 | A kind of switching circuit of multiple power supplies input |
| CN109646836B (en) * | 2018-12-06 | 2021-09-14 | 上海机电工程研究所 | Unmanned aerial vehicle carries fire extinguishing bomb activation circuit |
| CN111854539A (en) * | 2020-08-06 | 2020-10-30 | 苏州一路连科科技有限公司 | Detonation control system and detonation method for fire extinguishing bomb |
| CN212300129U (en) * | 2020-08-06 | 2021-01-05 | 苏州一路连科科技有限公司 | Detonation control system for fire extinguishing bomb |
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2020
- 2020-08-06 CN CN202010780979.4A patent/CN111854539A/en active Pending
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|---|---|---|---|---|
| WO2022028205A1 (en) * | 2020-08-06 | 2022-02-10 | 苏州一路连科科技有限公司 | Detonation control system and detonation method for fire extinguisher ball |
| CN113008087A (en) * | 2021-04-16 | 2021-06-22 | 山东龙翼航空科技有限公司 | Laser guidance projection fire extinguishing bomb |
Also Published As
| Publication number | Publication date |
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| AU2021323150A1 (en) | 2023-03-09 |
| AU2021323150B2 (en) | 2024-06-13 |
| WO2022028205A1 (en) | 2022-02-10 |
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