CN111330202B - Fire extinguishing ball delayed ignition control method and device, storage medium and processor - Google Patents
Fire extinguishing ball delayed ignition control method and device, storage medium and processor Download PDFInfo
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- CN111330202B CN111330202B CN201811547905.5A CN201811547905A CN111330202B CN 111330202 B CN111330202 B CN 111330202B CN 201811547905 A CN201811547905 A CN 201811547905A CN 111330202 B CN111330202 B CN 111330202B
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/04—Control of fire-fighting equipment with electrically-controlled release
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Abstract
The invention provides a fire extinguishing ball delayed ignition control method, a fire extinguishing ball delayed ignition control device, a storage medium and a processor. Wherein the method comprises the following steps: the ignition control board is electrified in a delayed mode; setting ignition delay time, an acceleration preset threshold and a speed preset threshold of a delay ignition control plate; connecting a power signal wire on the delay ignition control board; starting a timer when the acceleration of the delay ignition control board exceeds a preset acceleration threshold and/or the speed exceeds a preset speed threshold; when the timer is up, the power signal wire is broken under the action of gravity, the ignition head on the ignition control plate is delayed to ignite, and the fire extinguisher explodes. By introducing the micro main control chip and the multi-signal-line double-insurance method, the safety problems of the unmanned aerial vehicle and installation and maintenance personnel are guaranteed while the detonation stability of the fire extinguishing ball is improved, and the method can be applied to the fields of remote delayed detonation of detonators or remote delayed ignition of combustible materials and the like.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of delayed ignition control, in particular to a delayed ignition control method and device for a fire extinguishing ball, a storage medium and a processor.
[ background of the invention ]
To unmanned aerial vehicle for the fire control, an effectual means of putting out a fire is through putting out the fire ball directly over the burning things which may cause its inside dry powder to spread rapidly through the explosion of fire ball and realize fire extinguishing effect, consequently, the explosion position of fire ball has directly influenced its fire extinguishing effect. The existing ignition delay device basically adopts a hardware circuit to realize delayed detonation with fixed time, however, the delay time of the device is basically not adjustable, and the early detonation of the fire extinguishing ball caused by the looseness of a signal wire or unstable voltage is easy to occur in the installation and recovery processes of the fire extinguishing ball, so that the device has great threat to installation personnel.
The traditional delay ignition module is fixed in delay time, so that in order to achieve a better fire extinguishing effect, an aircraft is required to hover right above a fire source and put in a fire extinguishing ball at a fixed height. Traditional delay ignition module generally adopts the mode realization of circuit to postpone the function, consequently has higher requirement to the amplitude of input voltage, if voltage amplitude produces undulant early detonation that causes the fire extinguishing ball easily, has great threat to installation maintainer and unmanned aerial vehicle.
The traditional fire extinguishing ball of the delay ignition device does not explode after falling to the ground in the putting process, even mistakenly explodes in the installation or recovery process, the fire extinguishing effect is greatly reduced, and meanwhile, the safety of an unmanned aerial vehicle and even installation and maintenance personnel is threatened.
[ summary of the invention ]
The invention aims to solve the technical problem of providing a fire extinguishing ball delayed ignition control method, a fire extinguishing ball delayed ignition control device, a storage medium and a processor, which can ensure the safety of an unmanned aerial vehicle and installation and maintenance personnel while increasing the detonation stability of the fire extinguishing ball.
In order to solve the above technical problem, in one aspect, an embodiment of the present invention provides a fire extinguishing ball delayed ignition control method, including: the ignition delay control board is electrified; setting ignition delay time, an acceleration preset threshold and a speed preset threshold of a delay ignition control plate; connecting a power signal wire on the delay ignition control board; starting a timer when the acceleration of the delay ignition control board exceeds a preset acceleration threshold and/or the speed exceeds a preset speed threshold; when the timer is up, the power signal wire is pulled off under the action of gravity, the ignition head on the ignition control plate is delayed to ignite, and the fire extinguishing ball explodes.
Preferably, a three-axis accelerometer is disposed on the delayed ignition control board to test acceleration and velocity of the delayed ignition control board.
Preferably, the ignition delay control board includes: master control chip
Preferably, the predetermined acceleration threshold is: 9m/s2。
Preferably, the predetermined speed threshold is: 4 m/s.
Preferably, the setting of the ignition delay time of the delayed ignition control plate includes: and a key and an LED are arranged on the ignition delay control panel.
Preferably, the keys comprise a first key and a second key, the first key is used for resetting the fire extinguishing ball delayed ignition control plate, and the second key is used for setting the fire extinguishing ball explosion delay time.
Preferably, each time the LED flashes for 1 time represents that the decimal place of the explosion delay time of the fire extinguishing ball increases by 0.1 second.
Preferably, the power signal line includes: the first power signal line and the second power signal line are both connected with the main control chip, and when the fire extinguishing ball delayed ignition control board is in a normal state, the first power signal line is connected, and the second power signal line is suspended.
Preferably, when the second power signal line is connected, the main control chip is provided with a locking flag bit, and the fire extinguishing ball delayed ignition control board enters a locking state.
Preferably, the master control chip is ATmeg8-16 AU.
In another aspect, an embodiment of the present invention provides a storage medium including a stored program, wherein the program is executed to execute the fire extinguishing ball delayed ignition control method.
In another aspect, an embodiment of the present invention provides a processor for executing a program, where the program executes the fire extinguishing ball delayed ignition control method.
In another aspect, an embodiment of the present invention provides an ignition control device for a fire extinguishing ball during a delay time, including: the electric fire extinguishing device comprises an ignition head, a power interface, a three-axis accelerometer, a key, an LED, a power signal line and a main control chip which are electrically connected, wherein the power interface is used for accessing a charging or lithium battery, the key is used for setting the delay time of the fire extinguishing ball, the LED is used for displaying the delay time of the fire extinguishing ball, and the three-axis accelerometer is used for detecting the acceleration and the speed of the fire extinguishing ball; when the fire extinguishing ball leaves the throwing cylinder, the power signal wire is broken under the action of gravity, the main control chip continuously reads data of the three-axis accelerometer, when the acceleration of the three-axis accelerometer exceeds a preset acceleration threshold and/or the speed exceeds a preset speed threshold, countdown is started, and after the countdown is finished, the ignition head detonates the fire extinguishing ball.
Preferably, the predetermined threshold value of acceleration refers to: 9m/s2。
Preferably, the predetermined speed threshold refers to: 4 m/s.
Preferably, the keys comprise a first key and a second key, the first key is used for resetting the fire extinguishing ball time delay ignition control device, and the second key is used for setting the time delay of the fire extinguishing ball explosion.
Preferably, each time the LED flickers for 1 time represents that the current delay time decimal of the fire extinguishing control device increases by 0.1 second when the fire extinguishing ball delays.
Preferably, the power supply signal line includes: the first power supply signal wire and the second power supply signal wire are both connected with the main control chip, and in a normal state of the fire extinguishing ball delayed ignition control device, the first power supply signal wire is connected, and the second power supply signal wire is suspended.
Preferably, when the second power signal line is connected, the main control chip is provided with a locking flag bit, and the fire extinguishing ball delays to enable the fire extinguishing control device to enter a locking state.
Preferably, the master control chip is ATmeg8-16 AU.
Compared with the prior art, the technical scheme has the following advantages: by introducing the micro main control chip and the multi-signal-line double-insurance method, the safety problems of the unmanned aerial vehicle and installation and maintenance personnel are guaranteed while the detonation stability of the fire extinguishing ball is improved.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.
FIG. 1 is a flow chart of a fire extinguishing ball delayed ignition control method of the invention.
Fig. 2 shows a preferred embodiment of the fire extinguishing ball delayed ignition control method of the invention.
Fig. 3 is a functional block diagram of a fire extinguishing ball delayed ignition control device of the invention.
Fig. 4 is a schematic structural diagram of a fire extinguishing ball delayed ignition control device.
Fig. 5 is a lithium battery booster circuit diagram of a delay ignition control device of a fire extinguishing ball of the present invention.
Fig. 6 is a lithium battery booster circuit reset circuit of the fire extinguishing ball delay time ignition control device of the invention.
Fig. 7 is a circuit diagram of a driving circuit of a firing head of a delay time ignition control device of a fire extinguishing ball according to the present invention.
Fig. 8 is a circuit diagram of a triaxial accelerometer interface of a fire-extinguishing ball delay ignition control device of the invention.
FIG. 9 is a circuit diagram of an LED lamp indicating circuit of a fire extinguishing ball delayed ignition control device according to the present invention.
Fig. 10 is a circuit diagram of a key module of a fire extinguishing ball delayed ignition control device according to the present invention.
Fig. 11 is an ICSP download circuit of a fire extinguishing ball delay time ignition control device of the present invention.
Fig. 12 is a clock circuit diagram of a delay time ignition control device of a fire extinguishing ball according to the present invention.
FIG. 13 is a circuit diagram of a power signal line interface of a delay time ignition control device of a fire extinguishing ball according to the present invention.
FIG. 14 is a circuit diagram of a main control chip ATmeg8-16AU of the fire extinguishing ball delayed ignition control device.
FIG. 15 is a flow chart of the installation of the fire extinguishing ball of the delayed ignition control device of the fire extinguishing ball of the present invention.
FIG. 16 is a flow chart of fire extinguishing ball recovery in a fire extinguishing ball delayed ignition control device according to the present invention.
[ detailed description ] embodiments
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.
Example one
FIG. 1 is a flow chart of a fire extinguishing ball delayed ignition control method of the invention. A fire extinguishing ball delayed ignition control method comprises the following steps:
s11, electrifying the ignition delay control board;
s12, setting ignition delay time, acceleration preset threshold and speed preset threshold of the ignition delay control plate;
s13, connecting a power signal wire on the delay ignition control board;
s14, when the acceleration of the ignition delay control board exceeds the acceleration preset threshold and/or the speed exceeds the speed preset threshold, starting a timer;
and S15, when the timer is up, the power signal wire is broken under the action of gravity, the ignition head on the ignition control plate is delayed to ignite, and the fire extinguisher explodes.
And a three-axis accelerometer is arranged on the delayed ignition control board to test the acceleration and the speed of the delayed ignition control board.
The delay ignition control board includes: and a main control chip. The main control chip can select ATmeg8-16AU with low cost and high stability.
In particular embodiments, the predetermined threshold acceleration may be, but is not limited to, 9m/s2. The predetermined threshold speed may be, but is not limited to: 4 m/s. The predetermined threshold for acceleration and the predetermined threshold for velocity may be set according to the specific needs of the surrounding environment.
Setting the ignition delay time of the delay ignition control plate includes: and keys and an LED are arranged on the ignition delay control panel. The key comprises a first key and a second key, the first key is used for resetting the fire extinguishing ball delayed ignition control device, and the second key is used for timing the fire extinguishing ball delayed ignition control device. Each time the LED flickers for 1 time represents that the decimal place of the explosion delay time of the fire extinguishing ball is increased by 0.1 second. Such as: the first key is a reset key, the second key is an overtime key, the number of times of flashing of the LED represents that the default delay time of the control panel after the decimal part of the current delay time is electrified is 1s, and the delay time is increased by 0.1s every time the second key is pressed down; if the first key is pressed, resetting the delay time to 1 s; and if the current delay time is 1.2s, the LED is extinguished for 2s after flickering twice, continues to flicker twice and is extinguished for 2s, and the steps are repeated. The LED is on and off when the delay time is 1s, and the LED is on when the delay time is 2 s.
In specific implementation, after the ignition delay control board is electrified, the ignition delay control board is initialized, wherein the initialization comprises initialization delay time, a locking state flag bit and the like. The power supply signal line includes: the first power supply signal wire and the second power supply signal wire are connected with the main control chip, and the first power supply signal wire is connected and the second power supply signal wire is suspended in the air when the fire extinguishing ball time-delay ignition control device is in a normal state. When the second power supply signal wire is connected, the main control chip is provided with a locking flag bit, and the fire extinguishing ball delays to enable the fire extinguishing control device to enter a locking state.
In the using process, the ignition head is in direct contact with the fire extinguishing ball lead, the ignition head is driven by the ignition head driving circuit, the ignition head is connected with the miniature lithium battery through the NMOS triode, when the ATmeg8-16AU main control chip judges that the fire extinguishing ball needs to be ignited currently through a preset program, the PD6 pin of the ATmeg8-16AU is programmed to 1, namely, the low level is changed into the high level, so that the NMOS triode is conducted to enable the two ends of the ignition head to generate short-circuit current, and the ignition head is ignited under the action of the short-circuit current.
The first key and the second key are used for setting the delay time, when the first key is pressed, the PD2 port of ATmeg8-16AU is directly connected with GND, the PD2 port is changed into low level, the main control chip increases/resets the internal delay time variable when detecting the low level, and the delay time is 1s under the default condition.
The three-axis accelerometer is used for measuring the acceleration and the speed of the current control panel and the fire extinguishing ball in the vertical direction in real time, and the acceleration and the speed are judged and processed by ATmeg8-16AU through an IIC transmission protocol.
The first power signal line and the second power signal line are respectively connected to ports of a PC0 and a PC1 of a main control chip ATmeg8-16AU, under the normal installation condition of the fire extinguishing ball, the first power signal line is connected, the second power signal line is in a suspended state, at the moment, the port of the PC0 of the main control chip is in a high level, the port of the PC1 of the main control chip is in a low level, and the control panel is in a safe state; when the second power supply signal line is connected, namely the PC1 port of the main control chip is at a high level, the main control chip sets the locking flag bit to true, so that the control panel enters a locking state, the fire extinguishing ball is ensured not to explode in the recycling process, and the safety of personnel is guaranteed.
Fig. 2 shows a preferred embodiment of the fire extinguishing ball delayed ignition control method of the invention. As shown in fig. 2, the ignition delay control board is electrified to inquire whether the second power signal wire is connected, and if so, the locking state is entered; if not, entering a safe state. If the safety state is entered, the inquiry is continued as to whether the first power supply signal line is connected, and if so, the inquiry is continued as to whether the second power supply signal line is connected for more than 1 second, and if so, the lock-up state is entered, otherwise, the safety state is entered. If the first power supply signal line is not connected, it is queried whether the system acceleration/velocity exceeds a threshold, if not, it is next queried whether the second power supply signal line is connected for more than 1 second, if so, a lock-up state is entered, and if not, a safe state is entered. If the acceleration/velocity exceeds a threshold, a timer is started and a countdown is entered. If the countdown is not finished, inquiring whether the first connecting line is connected or not, and then carrying out the process. If the countdown is finished, the ignition head ignites, and the fire extinguisher explodes.
Example two
Embodiments of the present invention also provide a storage medium including a stored program, wherein the program executes the flow of the fire extinguishing ball delayed ignition control method when running.
Alternatively, in the present embodiment, the storage medium may be configured to store program codes for executing the following flow of the fire extinguishing ball ignition delay control method:
s11, electrifying the ignition delay control board;
s12, setting ignition delay time, acceleration preset threshold and speed preset threshold of the ignition delay control plate;
s13, connecting a power signal wire on the delay ignition control board;
s14, when the acceleration of the ignition delay control board exceeds the acceleration preset threshold and/or the speed exceeds the speed preset threshold, starting a timer;
and S15, when the timer is up, the power supply signal wire is broken under the action of gravity, the ignition head on the ignition control plate is delayed to ignite, and the fire extinguisher explodes.
Optionally, in this embodiment, the storage medium may include, but is not limited to: various media capable of storing program codes, such as a usb disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk.
Therefore, by adopting the storage medium, the storage capacity is reduced, the program operation of the built-in fire extinguishing ball delayed ignition control method flow is safe and reliable, and the delay time can be dynamically set and is accurate and applicable.
EXAMPLE III
Embodiments of the present invention also provide a processor for executing a program, wherein the program executes to execute the steps of the fire extinguishing ball delayed ignition control method.
Optionally, in this embodiment, the program is configured to perform the following steps:
s11, electrifying the ignition delay control board;
s12, setting ignition delay time, acceleration preset threshold and speed preset threshold of the ignition delay control plate;
s13, connecting a power signal wire on the delay ignition control board;
s14, when the acceleration of the ignition delay control board exceeds the acceleration preset threshold and/or the speed exceeds the speed preset threshold, starting a timer;
and S15, when the timer is up, the power supply signal wire is broken under the action of gravity, the ignition head on the ignition control plate is delayed to ignite, and the fire extinguisher explodes.
Optionally, for a specific example in this embodiment, reference may be made to the above-described embodiment and examples described in the specific implementation, and details of this embodiment are not described herein again.
Therefore, by adopting the processor, the data volume to be processed is reduced, the program operation of the built-in fire extinguishing ball delayed ignition control method flow is safe and reliable, and the delay time can be dynamically set and is accurate and applicable.
Example four
The invention correspondingly discloses a delayed ignition control device of the fire extinguishing ball, which comprises: the electric fire extinguishing device comprises an ignition head, a power interface, a three-axis accelerometer, a key, an LED, a power signal line and a main control chip which are electrically connected, wherein the power interface is used for being connected with a rechargeable or lithium battery, the key is used for setting the delay time of a fire extinguishing ball, the LED is used for displaying the delay time of the fire extinguishing ball, and the three-axis accelerometer is used for detecting the acceleration and the speed of the fire extinguishing ball; when the fire extinguishing ball leaves the throwing cylinder, the power signal wire is broken under the action of gravity, the main control chip continuously reads data of the three-axis accelerometer, when the acceleration or the speed of the three-axis accelerometer exceeds a preset threshold value, countdown is started, and after the countdown is finished, the ignition head detonates the fire extinguishing ball.
The predetermined threshold for acceleration may be, but is not limited to, 9m/s2. The predetermined threshold speed may be, but is not limited to: 4 m/s. The predetermined threshold for acceleration and the predetermined threshold for velocity may be set according to the specific needs of the surrounding environment. When the delay time is up, the explosion of the fire extinguishing ball can be triggered according to actual requirements.
The keys comprise a first key and a second key, the first key is used for resetting the fire extinguishing ball time delay ignition control device, and the second key is used for setting the fire extinguishing ball explosion time delay time. Each time the LED flickers for 1 time represents that the current delay time decimal of the fire extinguishing control device is increased by 0.1 second when the fire extinguishing ball is delayed. The power supply signal line includes: the first power supply signal wire and the second power supply signal wire are connected with the main control chip, and the first power supply signal wire is connected and the second power supply signal wire is suspended in the air when the fire extinguishing ball time-delay ignition control device is in a normal state. When the second power supply signal wire is connected, the main control chip is provided with a locking flag bit, and the fire extinguishing ball delays to enable the fire extinguishing control device to enter a locking state. The main control chip can select ATmeg8-16AU according to the requirement.
Fig. 3 is a functional block diagram of a fire extinguishing ball delayed ignition control device of the invention. As shown in fig. 3, the ignition head of the fire extinguishing ball delayed ignition control device is also provided with a MOS drive circuit. The micro power supply supplies power to the MOS drive circuit and the MCU power supply, and the MCU power supply supplies power to the main control chip. The main control chip is electrically connected with the first key, the second key, the LED, the ignition head, the first signal wire, the second power signal wire, the triaxial accelerometer and an ICSP (In-Circuit Serial Programming) downloading Circuit. The fire extinguishing ball delayed ignition control device can also be provided with a power interface as required, and the power interface can be provided with a USB charging interface or an external lithium battery for power supply.
Fig. 4 is a schematic structural diagram of a fire extinguishing ball delayed ignition control device. The power interface, the main control chip, the first key, the second key, the LED and the three-axis accelerometer are all arranged on the ignition control board. The first power signal line and the second power signal line are respectively connected to the ports of a PC0 and a PC1 of a main control chip ATmeg8-16AU, under the normal installation condition of the fire extinguishing ball, the first power signal line is connected, the second power signal line is in a suspended state, at the moment, the port of the PC0 is in a high level, the PC1 is in a low level, and the control panel is in a safe state; when the second power supply signal line is connected, namely the port of the PC1 is at a high level, the locking flag bit is set to true by the main control chip, so that the control panel enters a locking state, the fire extinguishing ball is ensured not to explode in the recycling process, and the safety of personnel is guaranteed. After the hardware part of the ignition control panel is welded, downloading a pre-compiled program to a main control chip through an ICSP (integrated circuit chip) downloading circuit; the firing head may be welded directly to the firing control plate.
Fig. 5 is a lithium battery booster circuit diagram of a delay ignition control device of a fire extinguishing ball of the present invention. The input voltage is 0.9-5V, and the output voltage is 5V. Boosting the chip by E50d ensures an output voltage of 5V.
Fig. 6 is a lithium battery booster circuit reset circuit of the fire extinguishing ball delayed ignition control device. The key AVR1 is pressed to set the RESET pin of ATmeg8-16AU to 0, thereby realizing the RESET of the main control chip. When the fire extinguishing ball delayed ignition control device needs to be restarted, the AVR1 can be pressed to restart the system.
Fig. 7 is a circuit diagram of a driving circuit of a firing head of a delay time ignition control device of a fire extinguishing ball according to the present invention. The ignition head is connected with the miniature lithium battery through the NMOS triode Q1, when the ATmeg8-16AU main control chip judges that the fire extinguishing ball needs to be ignited currently through a preset program, the PD6 pin of the ATmeg8-16AU is set to be 1 through the program, namely the low level is changed into the high level, so that the NMOS triode Q1 is conducted, short-circuit current is generated at two ends of the ignition head, and the ignition head is ignited under the action of the short-circuit current.
Fig. 8 is a circuit diagram of a triaxial accelerometer interface of a fire-extinguishing ball delay ignition control device of the invention. The SDA pins and the SCL pins are connected with corresponding pins of the triaxial accelerometer, data interaction is carried out between the SDA pins and the SCL pins and the triaxial accelerometer through IIC cooperation modification, and acceleration and speed information measured by the triaxial accelerometer are read through a main control chip ATmeg8-16 AU.
FIG. 9 is a circuit diagram of an LED lamp indicating circuit of a fire extinguishing ball delayed ignition control device according to the present invention. Indicating the delay time set by the current fire-extinguishing control panel through the continuous flashing times of the LED, if the delay time set at present is 1.3s, continuously flashing the LED for three times, then extinguishing for 2s, continuously flashing for three times, and extinguishing for 2s, wherein the process is circulated all the time; specifically, the LED is on and off with a delay time of 1 s.
Fig. 10 is a circuit diagram of a key module of a fire extinguishing ball delayed ignition control device according to the present invention. As can be seen from fig. 10, when the first key is pressed, the PD2 port of ATmeg8-16AU is directly connected to GND, the PD2 port is changed to low level, and the main control chip increases/resets the internal delay variable when detecting the low level, and the default delay time is 1 s.
Fig. 11 is an ICSP download circuit of a fire extinguishing ball delay time ignition control device of the present invention. After the hardware part of the ignition control board is welded, a pre-compiled program is downloaded to the main control chip through the ICSP downloading circuit. The downloader is connected with the D11, D12, D13 and the RESET port of the main control chip through an ICSP circuit to realize programming/downloading of programs.
Fig. 12 is a clock circuit diagram of a delay time ignition control device of a fire extinguishing ball according to the present invention. The external crystal oscillator with 16MHz is used as the crystal oscillator input of the main control chip. Thereby ensuring the accuracy of the timer.
FIG. 13 is a circuit diagram of a power signal line interface of a delay time ignition control device of a fire extinguishing ball according to the present invention. The aircraft onboard power supply is connected with the ports of the PC0 and the PC1 of the main control chip through the power supply signal interface circuit after voltage division, when the corresponding power supply signal wire is connected, the port is kept in a high level state, and when the corresponding power supply signal wire is not connected, the port is in a low level state.
FIG. 14 is a circuit diagram of a main control chip ATmeg8-16AU of the fire extinguishing ball delayed ignition control device. The PC0 and the PC1 ports are used for reading whether a power supply signal line is connected or not; the PC4 and the PC5 ports are used for reading the data of the triaxial accelerometer; the PD2 and the PD3 are used for reading whether the keys are pressed; PD6 is used for driving the ignition head; the PD7 is used for controlling the on and off of the LED; PD11, PD12 and PD13 are used for programming. The reading of the triaxial accelerometer data includes the reading of acceleration and velocity.
FIG. 15 is a flow chart of the installation of the fire extinguishing ball of the delayed ignition control device of the fire extinguishing ball of the present invention. And (5) starting to install the fire extinguishing ball, and delaying the electrification of the ignition control plate (the control plate is connected with the micro battery). And (4) self-checking the program, wherein the fire extinguishing ball enters a locked state when the LED flashes for two seconds and then is normally covered. And the user confirms whether the delay time needs to be increased or not, if so, the first key is pressed, the delay time is increased by 0.1s, and if not, the delay time is set completely. And after the delay time is increased by 0.1s, confirming whether the delay time is continuously changed by the user, if so, increasing/resetting the delay time, and if not, finishing the setting of the delay time. If the increase/reset delay time is confirmed to be reset delay time, pressing a second key, and resetting the delay time to 1 s; if the delay time is confirmed to be increased, the first key is pressed, and the delay time is increased by 0.1 s. After the delay time is set, the fire extinguisher is connected with the first power supply signal wire, the second power supply signal wire is suspended, and the fire extinguisher enters a safe state. And (5) putting the fire extinguisher in a safe state into a putting barrel, and finishing the installation of the fire extinguishing ball.
FIG. 16 is a flow chart of fire extinguishing ball recovery in a fire extinguishing ball delayed ignition control device according to the present invention. Under the condition that the ball of putting out a fire normally installed, the first power signal line of control panel has been connected, and the second power signal line is in unsettled state, and at this moment, last more than 1s through connecting the second power signal line and can make the ball of putting out a fire get into the lock state to the ball of putting out a fire is retrieved safely.
It can be seen that, in the installation and recovery process of the fire extinguishing ball, the delayed ignition control board is in a safe state or a locking state:
a locking state: when the second power supply signal wire is connected with an external airborne power supply, the delayed ignition control board is in a locked state; after the second power supply signal wire is disconnected, the delayed ignition control board enters a safe state; in a locked state, no matter what state the first power supply signal wire and the three-axis accelerometer are, the delayed ignition control board cannot enter a countdown ignition state;
and (4) safety state: the second power supply signal wire is disconnected, the detonation of the fire extinguishing ball is determined by the second power supply signal wire and the triaxial accelerometer together in the state, and the safe detonation of the fire extinguishing ball is finally ensured through the auxiliary judgment of the second power supply signal wire and the triaxial accelerometer.
Therefore, by adopting the fire-extinguishing delayed ignition control method and the fire-extinguishing delayed ignition control device, a self-checking process is realized after the program is electrified, and the normal functions of the program and the development board are ensured; after the main control board is electrified, the LED flickers for two seconds and then is normally on, which indicates that the procedure is normal, and the ignition head enters a locking state; the development board is adopted to read the high level signal from the onboard lithium battery, so that the reading is not influenced by the fluctuation of the voltage of the lithium battery; the delay time can be changed by pressing a key in the process of installing the fire extinguishing ball; the reset key is matched with the LED flicker to ensure the preparation setting of the delay time; the use safety is confirmed by double insurance of the triaxial acceleration and the power supply signal wire; the locking function is added, the fire extinguishing ball is recovered more safely, a second power supply signal line is additionally added for recovering the fire extinguishing ball, if the fire extinguishing ball is not completely thrown in a flight task, the aircraft can enter a locking state by giving a high level exceeding 1s to the second power supply signal line after landing, and the fire extinguishing ball can be safely recovered; the keys are prevented from being pressed mistakenly, and a mode of pressing the keys laterally or inching the periphery of the keys to be higher can be adopted.
According to the fire extinguishing ball delayed ignition control method, the fire extinguishing ball delayed ignition control device, the storage medium and the processor, the micro main control chip and the multi-signal-line double-insurance method are introduced, so that the safety problems of the unmanned aerial vehicle and installation and maintenance personnel are guaranteed while the detonation stability of the fire extinguishing ball is improved, and the fire extinguishing ball delayed ignition control method can be applied to the fields of remote delayed detonation of detonators or remote delayed ignition of combustibles and the like.
The above embodiments of the present invention are described in detail, and the principle and the implementation of the present invention are explained by applying specific embodiments, and the above description of the embodiments is only used to help understanding the method of the present invention and the core idea thereof; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (16)
1. A fire extinguishing ball delayed ignition control method is characterized by comprising the following steps:
the ignition control board is electrified in a delayed mode; the delay ignition control board includes: a main control chip;
setting ignition delay time, an acceleration preset threshold and a speed preset threshold of a delay ignition control plate;
connecting a power signal wire on the delayed ignition control board; the power supply signal line includes: the first power signal line and the second power signal line are both connected with the main control chip, and are connected in a normal state of the fire extinguishing ball delayed ignition control board, and the second power signal line is suspended; when the second power signal wire is connected, the main control chip is provided with a locking flag bit, and the fire extinguishing ball delayed ignition control board enters a locking state;
starting a timer when the acceleration of the delay ignition control board exceeds a preset acceleration threshold and/or the speed exceeds a preset speed threshold;
when the timer is up, the power signal wire is pulled off under the action of gravity, the ignition head on the ignition control plate is delayed to ignite, and the fire extinguishing ball explodes.
2. The fire extinguishing ball delayed ignition control method of claim 1, wherein a three-axis accelerometer is provided on the delayed ignition control board to test acceleration and speed of the delayed ignition control board.
3. The fire extinguishing ball delayed ignition control method according to claim 1, wherein the predetermined acceleration threshold is: 9m/s2。
4. The fire extinguishing ball delayed ignition control method according to claim 1, wherein the speed predetermined threshold is: 4 m/s.
5. The fire extinguishing ball delayed ignition control method of claim 1, wherein the setting of the delayed ignition control plate ignition delay time comprises: and the delayed ignition control board is provided with a key and an LED.
6. The fire extinguishing ball delayed ignition control method according to claim 5, wherein the keys comprise a first key and a second key, the first key is used for resetting the fire extinguishing ball delayed ignition control plate, and the second key is used for setting the fire extinguishing ball explosion delay time.
7. The fire extinguishing ball delayed ignition control method according to claim 5, wherein the decimal place representing the explosion delay time of the fire extinguishing ball increases by 0.1 second every 1 time the LED flashes.
8. The fire extinguishing ball delayed ignition control method according to claim 1, wherein the main control chip is ATmeg8-16 AU.
9. A storage medium comprising a stored program, wherein the program when executed performs the fire extinguishing ball delayed ignition control method of any one of claims 1 to 8.
10. A processor, characterized in that the processor is configured to run a program, wherein the program is run to execute the fire extinguishing ball delayed ignition control method according to any one of claims 1 to 8.
11. A fire-extinguishing ball time-delay ignition control device is characterized by comprising: through ignition head, power source, triaxial accelerometer, button, LED, power signal line, the main control chip of electricity connection, the power signal line includes: the first power signal line and the second power signal line are both connected with the main control chip, and are connected in a normal state of the fire extinguishing ball delayed ignition control board, and the second power signal line is suspended; when the second power signal wire is connected, the main control chip is provided with a locking flag bit, and the fire extinguishing ball delayed ignition control board enters a locking state; the power interface is used for being connected with a rechargeable or lithium battery, the key is used for setting the delay time of the fire extinguishing ball explosion, the LED is used for displaying the delay time of the fire extinguishing ball explosion, and the three-axis accelerometer is used for detecting the acceleration and the speed of the fire extinguishing ball; when the fire extinguishing ball leaves the throwing cylinder, the power signal wire is broken under the action of gravity, the main control chip continuously reads data of the three-axis accelerometer, when the acceleration of the three-axis accelerometer exceeds a preset acceleration threshold and/or the speed exceeds a preset speed threshold, a timer is started, and when the timing time is up, the ignition head detonates the fire extinguishing ball.
12. The fire extinguishing ball time delay ignition control device of claim 11, wherein the predetermined threshold of acceleration refers to: 9m/s2。
13. A fire ball time delay ignition control as recited in claim 11, wherein said predetermined threshold of velocity refers to: 4 m/s.
14. The fire extinguishing ball time delay ignition control device of claim 11, wherein the keys comprise a first key and a second key, the first key is used for resetting the fire extinguishing ball time delay ignition control device, and the second key is used for setting the time delay of the fire extinguishing ball explosion.
15. The fire extinguishing ball delay time ignition control device of claim 11, wherein each flash of the LED for 1 time represents a fractional increase of 0.1 seconds in the current delay time of the fire extinguishing ball delay time ignition control device.
16. The fire extinguishing ball delayed ignition control device according to any one of claims 11 to 15, wherein the main control chip is ATmeg8-16 AU.
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| CN201811547905.5A CN111330202B (en) | 2018-12-18 | 2018-12-18 | Fire extinguishing ball delayed ignition control method and device, storage medium and processor |
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| CN112642074A (en) * | 2020-12-24 | 2021-04-13 | 苏州信卓胜电子科技有限公司 | Fire extinguishing bomb based on three-axis acceleration sensor and control method |
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| CN111330202A (en) | 2020-06-26 |
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