CN111494839A - Automatic fire extinguishing method and system for automobile, mobile terminal and storage medium - Google Patents
Automatic fire extinguishing method and system for automobile, mobile terminal and storage medium Download PDFInfo
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- CN111494839A CN111494839A CN202010351567.9A CN202010351567A CN111494839A CN 111494839 A CN111494839 A CN 111494839A CN 202010351567 A CN202010351567 A CN 202010351567A CN 111494839 A CN111494839 A CN 111494839A
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/07—Fire prevention, containment or extinguishing specially adapted for particular objects or places in vehicles, e.g. in road vehicles
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C99/00—Subject matter not provided for in other groups of this subclass
- A62C99/0009—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames
- A62C99/0018—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames using gases or vapours that do not support combustion, e.g. steam, carbon dioxide
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Abstract
The invention provides an automatic fire extinguishing method, an automatic fire extinguishing system, a mobile terminal and a storage medium for an automobile, wherein the method comprises the following steps: acquiring temperature information and circuit information of an engine compartment in a target automobile; judging whether the temperature information and the line information both meet the fire extinguishing condition; if so, controlling a heater in a gas generator in the engine compartment to heat the inflating agent to generate nitrogen; judging whether the current air pressure of the gas generator is greater than an air pressure threshold value; if yes, opening a channel between the gas generator and the fire extinguishing agent storage chamber so as to fill nitrogen into the fire extinguishing agent storage chamber; and controlling the fire extinguishing agent in the fire extinguishing agent storage chamber to diffuse towards the engine compartment under the punching of the nitrogen so as to extinguish the fire of the engine compartment. According to the invention, through the design of acquiring the temperature information and the line information, whether the engine compartment is on fire or not is automatically judged, when the engine compartment is on fire, the inflating agent is controlled to generate nitrogen, and the fire extinguishing agent is controlled to diffuse to the engine compartment under the stamping of the nitrogen, so that the automatic fire extinguishing effect is effectively achieved.
Description
Technical Field
The invention belongs to the field of automobile fire extinguishing, and particularly relates to an automatic automobile fire extinguishing method, an automatic automobile fire extinguishing system, a mobile terminal and a storage medium.
Background
The fire disaster is one of the most common disasters in human society, and according to the statistics of the global fire disasters, the number of the fire disasters of the vehicles accounts for about 21 percent of the total number of the global fire disasters, wherein the number of the automobile fires accounts for about 18 percent, and the number of the other vehicles accounts for about 3 percent. The high-speed economic development is benefited in China, the living standard of people is increasingly improved, the rigid demand of the purchased vehicles of people is vigorous, the automobile holding quantity is continuously increased every year, and the average annual increase quantity is more than 1000 ten thousand. The automobile keeping amount in China is increased in recent years. According to the statistics of the traffic management department of the ministry of public security of China, the quantity of the preserved Chinese automobiles reaches 2.5 hundred million by 2018. According to statistics, the main fire site of the automobile fire is in an engine compartment, and the fire caused by the fire in the engine compartment accounts for 66% of the total number of the automobile fires.
Once the automobile engine is on fire, the gold time for extinguishing fire is very short, and if the fire cannot be extinguished in the initial stage of the fire, the fire is difficult to extinguish after forming a certain scale. Many automobile fires can be suppressed at the beginning of their occurrence, but they are lost greatly because the best fire fighting opportunities are delayed when drivers and passengers are psychologically panic or lack of general knowledge to manually extinguish a fire or when fire fighters are passively waited to extinguish the fire, so that the fire cannot be controlled in a short time after it has developed to a certain extent.
Among the prior art, when the automobile engine cabin is on fire, initiatively put out a fire through the handheld fire extinguisher of user, but when not being equipped with the fire extinguisher in the car, then can not effectually put out a fire, and when the automobile engine cabin back of firing, open the cabin and can make the air admission, favourable convection current forms, wind helps hot intensity of a fire can grow in the twinkling of an eye, but if can't use handheld fire extinguisher again to put out a fire to automobile engine cabin conflagration not opening the engine cabin, and then lead to the inefficiency of putting out a fire.
Disclosure of Invention
The embodiment of the invention aims to provide an automatic fire extinguishing method, an automatic fire extinguishing system, a mobile terminal and a storage medium for an automobile, and aims to solve the problem that the existing automobile engine compartment cannot effectively extinguish fire due to the fact that the automobile is not provided with a fire extinguisher in the fire extinguishing process.
The embodiment of the invention is realized in such a way that an automobile automatic fire extinguishing method comprises the following steps:
acquiring temperature information of an engine compartment in a target automobile and acquiring line information of the target automobile;
judging whether the temperature information and the line information both meet fire extinguishing conditions;
when the temperature information and the line information are judged to meet the fire extinguishing condition, controlling a heater in a gas generator in the engine compartment to heat an inflating agent so as to enable the inflating agent to carry out a sodium nitride reaction to generate nitrogen;
judging whether the current air pressure of the gas generator is greater than an air pressure threshold value;
when the current air pressure is judged to be larger than the air pressure threshold value, a channel between the gas generator and a fire extinguishing agent storage chamber is opened so as to enable the nitrogen to be filled into the fire extinguishing agent storage chamber;
and controlling the fire extinguishing agent in the fire extinguishing agent storage chamber to diffuse towards the engine compartment under the punching of the nitrogen gas so as to extinguish the fire of the engine compartment.
Further, the step of judging whether both the temperature information and the line information satisfy a fire extinguishing condition includes:
acquiring the current temperature stored in the temperature information, and judging whether the current temperature is greater than a temperature threshold value;
when the current temperature is judged to be higher than the temperature threshold value, response information stored in the line information is obtained, and whether an abnormal line exists on the target automobile or not is judged according to the response information;
and when the abnormal line exists on the target automobile, judging that the temperature information and the line information both meet the fire extinguishing condition.
Further, the step of determining whether an abnormal route exists on the target automobile according to the response information includes:
acquiring a response identifier of each automobile line in the response information, and judging whether the response identifier is a preset identifier or not;
and when the response identifier is judged not to be the preset identifier, marking the automobile line corresponding to the response identifier as the abnormal line.
Further, after the step of determining whether there is an abnormal route on the target vehicle according to the response information, the method further includes:
when the abnormal line does not exist on the target automobile, shooting an image of the engine compartment to obtain a current image;
performing image recognition on the current image to obtain image characteristics, and judging whether the image characteristics are matched with the flame characteristics;
and when the image characteristic is matched with the flame characteristic, controlling a heater in the gas generator to heat the inflating agent so as to enable the inside of the inflating agent to carry out a sodium nitride reaction to generate nitrogen.
Still further, the method further comprises:
and when the current temperature is judged to be less than or equal to the temperature threshold value and the abnormal line exists on the target automobile, sending a prompt alarm aiming at the abnormal line.
Further, after the step of controlling the fire extinguishing agent in the fire extinguishing agent storage chamber to diffuse toward the engine compartment under the pressure of the nitrogen gas, the method further includes:
acquiring temperature and state images of the engine compartment in real time to obtain fire extinguishing feedback information, and acquiring a local pre-stored communication address;
and sending the fire extinguishing feedback information to the communication address according to a preset time interval.
It is another object of an embodiment of the present invention to provide an automatic fire extinguishing system for a vehicle, the system including:
the system comprises an information acquisition module, a data processing module and a data processing module, wherein the information acquisition module is used for acquiring temperature information of an engine compartment in a target automobile and acquiring line information of the target automobile;
the fire extinguishing judgment module is used for judging whether the temperature information and the line information both meet fire extinguishing conditions;
the heating control module is used for controlling a heater in a gas generator in the engine compartment to heat an inflating agent so as to enable the inflating agent to perform a sodium nitride reaction to generate nitrogen when the temperature information and the line information are judged to meet the fire extinguishing condition;
the fire extinguishing channel control module is used for judging whether the current air pressure of the gas generator is greater than an air pressure threshold value or not, and opening a channel between the gas generator and a fire extinguishing agent storage chamber when the current air pressure is judged to be greater than the air pressure threshold value so as to fill the nitrogen into the fire extinguishing agent storage chamber;
and the fire extinguishing execution module is used for controlling the fire extinguishing agent in the fire extinguishing agent storage chamber to diffuse towards the engine compartment under the punching of the nitrogen so as to extinguish the fire of the engine compartment.
Still further, the fire-extinguishing judgment module is further configured to:
acquiring the current temperature stored in the temperature information, and judging whether the current temperature is greater than a temperature threshold value;
when the current temperature is judged to be higher than the temperature threshold value, response information stored in the line information is obtained, and whether an abnormal line exists on the target automobile or not is judged according to the response information;
and when the abnormal line exists on the target automobile, judging that the temperature information and the line information both meet the fire extinguishing condition.
It is another object of an embodiment of the present invention to provide a mobile terminal, including a storage device for storing a computer program and a processor for operating the computer program to make the mobile terminal execute the above-mentioned automatic fire extinguishing method for a vehicle.
Another object of an embodiment of the present invention is to provide a storage medium, which stores a computer program used in the mobile terminal, wherein the computer program, when executed by a processor, implements the steps of the automatic fire extinguishing method for a vehicle.
According to the embodiment of the invention, whether the engine compartment is on fire or not is automatically judged by the design of obtaining the temperature information of the engine compartment and the line information of the target automobile, when the engine compartment is on fire, the inflating agent is controlled to generate nitrogen, and the fire extinguishing agent in the fire extinguishing agent storage chamber is controlled to diffuse towards the engine compartment under the punching of the nitrogen, so that the automatic fire extinguishing effect is effectively achieved, the convection of air is prevented without opening the engine compartment, and the fire extinguishing efficiency is improved.
Drawings
FIG. 1 is a flow chart of a method for automatically extinguishing a fire in a vehicle according to a first embodiment of the present invention;
FIG. 2 is a flow chart of a method for automatically extinguishing a fire in a vehicle according to a second embodiment of the present invention;
FIG. 3 is a schematic structural diagram of an automatic fire extinguishing system for a vehicle according to a third embodiment of the present invention;
fig. 4 is a schematic structural diagram of a mobile terminal according to a fourth embodiment of the present invention;
the following detailed description will further illustrate the invention in conjunction with the above-described figures.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In order to explain the technical means of the present invention, the following description will be given by way of specific examples.
Example one
Referring to fig. 1, a flow chart of an automatic fire extinguishing method for a vehicle according to a first embodiment of the present invention is shown, which includes the steps of:
step S10, acquiring temperature information of an engine compartment in a target automobile and acquiring line information of the target automobile;
the engine room is at least provided with a temperature sensor which is used for detecting the temperature value in the engine room in real time to obtain the temperature information;
preferably, three temperature sensors are provided in the present embodiment, the first temperature sensor is disposed near a high-pressure fuel pipe in an engine compartment, if a car accident occurs, the high-pressure fuel pipe is broken, which is very easy to cause a fire, the second temperature sensor is disposed at a concentrated portion of the storage battery and the line switch, and the third temperature sensor is disposed at a supercharger portion, where the engine is very hot during operation, which is easy to cause a fire. The three sensors are distributed in a dispersed manner, so that a temperature monitoring effect can be achieved more timely when a fire disaster happens at one position;
specifically, in this step, the line information may be obtained based on a CAN bus in the target vehicle, and the line information stores information of ports on each line;
step S20, judging whether the temperature information and the line information both meet the fire extinguishing condition;
the condition parameters in the fire extinguishing condition can be set according to requirements, and the fire extinguishing condition is used for judging whether a fire disaster phenomenon occurs in the engine room;
when the temperature information and the line information are judged to meet the fire extinguishing condition, judging that a fire disaster phenomenon occurs in the engine compartment at present, and executing step S30;
step S30, controlling a heater in a gas generator in the engine compartment to heat an inflating agent so as to enable the inflating agent to carry out a sodium nitride reaction to generate nitrogen;
the gas generator is internally provided with a gunpowder barrel and a gas generating chamber, the gunpowder barrel is internally provided with an electric igniter, a heater and a fuel expanding agent, when an ignition signal is received, the electric igniter controls the heater to work so that the heater can rapidly heat and detonate the explosive, the explosive explodes to emit a large amount of heat to the gas generating chamber through a fire transfer hole, an inflating agent in the gas generating chamber is heated and decomposed to emit a large amount of nitrogen, and preferably, the inflating agent can be sodium azide to generate nitrogen;
step S40, judging whether the current air pressure of the gas generator is larger than an air pressure threshold value;
the air pressure threshold can be set according to requirements, and in the step, the air pressure threshold is 3 times of standard air pressure;
when the current air pressure is judged to be larger than the air pressure threshold value, executing step S50;
step S50, opening a channel between the gas generator and a fire extinguishing agent storage chamber to enable the nitrogen to be filled into the fire extinguishing agent storage chamber;
after a channel between the gas generator and the fire extinguishing agent storage chamber is opened, nitrogen under larger air pressure is filled into the fire extinguishing agent storage chamber due to the control of air pressure balance, and the fire extinguishing agent is arranged in the fire extinguishing agent storage chamber in advance;
in the step, an outer shell sealing cover is covered on the fire extinguishing agent (dry powder) storage chamber, the outer shell sealing cover has good sealing performance and is connected with an air outlet pipeline, nitrogen is pressed into an inner shell after passing through the outer shell, and the upper part of the inner shell is not sealed;
preferably, a flow guide plate is arranged in the fire extinguishing agent storage chamber, the fire extinguishing agent is arranged on the flow guide plate, and the flow guide plate is used for preventing the fire extinguishing agent from being excessively concentrated and being condensed into blocks, so that the fire extinguishing agent is easier to flush out by nitrogen;
step S60, controlling the fire extinguishing agent in the fire extinguishing agent storage chamber to diffuse towards the engine compartment under the punching of the nitrogen gas so as to extinguish the fire of the engine compartment;
this embodiment, through the design of the line information who obtains the temperature information in engine compartment and target car to whether fire in the automatic judgement engine compartment, control the inflating agent and generate nitrogen gas when judging fire in the engine compartment, and spread to the engine compartment through the fire extinguishing agent in the control fire extinguishing agent apotheca under the punching press of nitrogen gas, and then effectual automatic fire extinguishing effect that reaches, and need not to open the engine compartment and prevented the convection current of air, improved fire extinguishing efficiency.
Example two
Referring to fig. 2, it is a flow chart of an automatic fire extinguishing method for a vehicle according to a second embodiment of the present invention, including the steps of:
step S11, acquiring temperature information of an engine compartment in the target automobile and acquiring line information of the target automobile;
preferably, in the step, the line information CAN be acquired based on a CAN bus in a target automobile, and the line information stores information of ports on each line;
step S21, obtaining the current temperature stored in the temperature information, and judging whether the current temperature is larger than the temperature threshold value;
the temperature threshold value can be used for setting a parameter value according to requirements;
when the current temperature is judged to be higher than the temperature threshold value, judging that fire possibly occurs due to overhigh temperature in the engine compartment, and executing step S31;
step S31, acquiring response information stored in the route information, and judging whether an abnormal route exists on the target automobile according to the response information;
the response information stores a response identifier of each automobile line, the response identifier is used for judging the current state of the corresponding automobile line, namely when the response identifier is judged to be different from a preset identifier prestored locally, the response of the automobile line to the detection signal is judged not to be received, namely the automobile line is judged to be in an abnormal state currently;
specifically, in this step, the step of determining whether an abnormal route exists in the target automobile according to the response information includes:
acquiring a response identifier of each automobile line in the response information, and judging whether the response identifier is a preset identifier or not;
and when the response identifier is judged not to be the preset identifier, marking the automobile line corresponding to the response identifier as the abnormal line.
In addition, in the step, when the abnormal line does not exist on the target automobile, the engine compartment is subjected to image shooting to obtain a current image;
performing image recognition on the current image to obtain image characteristics, and judging whether the image characteristics are matched with the flame characteristics;
and when the image characteristic is matched with the flame characteristic, controlling a heater in the gas generator to heat the inflating agent so as to enable the inside of the inflating agent to carry out a sodium nitride reaction to generate nitrogen.
When it is determined that the abnormal route exists on the target automobile, it is determined that both the temperature information and the route information satisfy the fire extinguishing condition, and step S41 is executed;
step S41, controlling a heater in a gas generator in the engine compartment to heat the inflating agent so as to enable the sodium nitride reaction in the inflating agent to generate nitrogen;
the gas generator is internally provided with a gunpowder barrel and a gas generating chamber, the gunpowder barrel is internally provided with an electric igniter, a heater and a fuel expanding agent, when an ignition signal is received, the electric igniter controls the heater to work so that the heater can rapidly heat and detonate the explosive, the explosive explodes to emit a large amount of heat to the gas generating chamber through a fire transfer hole, an inflating agent in the gas generating chamber is heated and decomposed to emit a large amount of nitrogen, and preferably, the inflating agent can be sodium azide to generate nitrogen;
step S51, judging whether the current air pressure of the gas generator is larger than the air pressure threshold value;
the air pressure threshold value can be designed according to the requirement, and is used for judging whether the gas generator meets the condition of releasing nitrogen or not;
when the current air pressure is judged to be greater than the air pressure threshold value, judging that the gas generator meets the condition of releasing nitrogen, and executing step S61;
step S61, opening a channel between the gas generator and the fire extinguishing agent storage chamber to fill the fire extinguishing agent storage chamber with nitrogen;
after a channel between the gas generator and the fire extinguishing agent storage chamber is opened, nitrogen under larger air pressure is filled into the fire extinguishing agent storage chamber due to the control of air pressure balance, and the fire extinguishing agent is arranged in the fire extinguishing agent storage chamber in advance;
step S71, controlling the fire extinguishing agent in the fire extinguishing agent storage chamber to diffuse to the engine compartment under the punching of the nitrogen so as to extinguish the fire of the engine compartment;
after the fire extinguishing gas is released for 10-15 s, the fire extinguishing gas can be filled in the whole engine room and bypasses obstacles to carry out full-submerged fire extinguishing, and the fire extinguishing device is high in fire extinguishing speed and efficiency and has better anti-flammability performance;
step S81, acquiring temperature and state images of the engine compartment in real time to obtain fire extinguishing feedback information, and acquiring a local pre-stored communication address;
in the step, preferably, the communication address can be set according to the requirements of users, for example, the communication address can be set to be a mobile phone number, a private plane number or any application account number with a communication function;
step S91, fire extinguishing feedback information is sent to a communication address according to a preset time interval;
by the design of sending the fire extinguishing feedback information to the communication address, the fire extinguishing condition can be sent to the user in time, and the user can conveniently know the fire information;
in addition, in this step, the method further includes:
and when the current temperature is judged to be less than or equal to the temperature threshold value and the abnormal line exists on the target automobile, sending a prompt alarm aiming at the abnormal line.
This embodiment, through the design of the line information who obtains the temperature information in engine compartment and target car to whether fire in the automatic judgement engine compartment, control the inflating agent and generate nitrogen gas when judging fire in the engine compartment, and spread to the engine compartment through the fire extinguishing agent in the control fire extinguishing agent apotheca under the punching press of nitrogen gas, and then effectual automatic fire extinguishing effect that reaches, and need not to open the engine compartment and prevented the convection current of air, improved fire extinguishing efficiency.
EXAMPLE III
Referring to fig. 3, a schematic structural diagram of an automatic fire extinguishing system 100 for a vehicle according to a third embodiment of the present invention is shown, including: information acquisition module 10, the judgement module 11 of putting out a fire, heating control module 12, passageway control module 13 and the execution module 14 of putting out a fire, wherein:
the information acquisition module 10 is configured to acquire temperature information of an engine compartment in a target vehicle and acquire line information of the target vehicle, where at least one temperature sensor is disposed in the engine compartment, and the temperature sensor is configured to detect a temperature value in the engine compartment in real time to obtain the temperature information;
preferably, three temperature sensors are provided in the present embodiment, the first temperature sensor is disposed near a high-pressure fuel pipe in an engine compartment, if a car accident occurs, the high-pressure fuel pipe is broken, which is very easy to cause a fire, the second temperature sensor is disposed at a concentrated portion of the storage battery and the line switch, and the third temperature sensor is disposed at a supercharger portion, where the engine is very hot during operation, which is easy to cause a fire. The three sensors are distributed in a dispersed manner, and the temperature monitoring function can be realized more timely when a fire disaster happens at one position.
And the fire extinguishing judgment module 11 is used for judging whether the temperature information and the line information both meet fire extinguishing conditions, wherein condition parameters in the fire extinguishing conditions can be set according to requirements, and the fire extinguishing conditions are used for judging whether a fire disaster phenomenon occurs in the engine compartment.
Wherein, the fire extinguishing judgment module 11 is further configured to: acquiring the current temperature stored in the temperature information, and judging whether the current temperature is greater than a temperature threshold value;
when the current temperature is judged to be higher than the temperature threshold value, response information stored in the line information is obtained, and whether an abnormal line exists on the target automobile or not is judged according to the response information;
and when the abnormal line exists on the target automobile, judging that the temperature information and the line information both meet the fire extinguishing condition.
Preferably, the fire extinguishing judgment module 11 is further configured to: acquiring a response identifier of each automobile line in the response information, and judging whether the response identifier is a preset identifier or not;
and when the response identifier is judged not to be the preset identifier, marking the automobile line corresponding to the response identifier as the abnormal line.
Further, the fire extinguishing judgment module 11 is further configured to: when the abnormal line does not exist on the target automobile, shooting an image of the engine compartment to obtain a current image;
performing image recognition on the current image to obtain image characteristics, and judging whether the image characteristics are matched with the flame characteristics;
and when the image characteristic is matched with the flame characteristic, controlling a heater in the gas generator to heat the inflating agent so as to enable the inside of the inflating agent to carry out a sodium nitride reaction to generate nitrogen.
In addition, the fire extinguishing judgment module is further used for: and when the current temperature is judged to be less than or equal to the temperature threshold value and the abnormal line exists on the target automobile, sending a prompt alarm aiming at the abnormal line.
The heating control module 12 is used for controlling a heater in a gas generator in the engine room to heat an inflating agent so as to enable the inflating agent to react with sodium nitride to generate nitrogen when judging that the temperature information and the line information meet the fire extinguishing condition, wherein the gas generator is internally provided with a propellant barrel and a gas generating chamber, the propellant barrel is internally provided with an electric igniter, the heater and a fuel expanding agent, when receiving an ignition signal, the electric igniter is used for controlling the heater to work so as to enable the heater to rapidly heat and detonate an explosive, a large amount of heat is emitted after the explosive explodes to the gas generating chamber through a fire transfer hole, the inflating agent in the gas generating chamber is thermally decomposed to emit a large amount of nitrogen, and preferably, the inflating agent can adopt sodium azide to generate the nitrogen.
And a fire extinguishing passage control module 13 for determining whether the current air pressure of the gas generator is greater than an air pressure threshold, and when the current air pressure is greater than the air pressure threshold, opening a passage between the gas generator and the fire extinguishing agent storage chamber to allow the nitrogen gas to be filled into the fire extinguishing agent storage chamber, wherein the air pressure threshold can be set as required, and in the module, the air pressure threshold is 3 times of standard air pressure.
And the fire extinguishing execution module 14 is used for controlling the fire extinguishing agent in the fire extinguishing agent storage chamber to diffuse towards the engine compartment under the punching of the nitrogen gas so as to extinguish the fire of the engine compartment.
Preferably, the automatic fire extinguishing system 100 for a vehicle further includes:
the real-time monitoring module 15 is used for acquiring the temperature and state image of the engine compartment in real time to obtain fire extinguishing feedback information and acquiring a local prestored communication address;
and sending the fire extinguishing feedback information to the communication address according to a preset time interval.
This embodiment, through the design of the line information who obtains the temperature information in engine compartment and target car to whether fire in the automatic judgement engine compartment, control the inflating agent and generate nitrogen gas when judging fire in the engine compartment, and spread to the engine compartment through the fire extinguishing agent in the control fire extinguishing agent apotheca under the punching press of nitrogen gas, and then effectual automatic fire extinguishing effect that reaches, and need not to open the engine compartment and prevented the convection current of air, improved fire extinguishing efficiency.
Example four
Referring to fig. 4, a mobile terminal 101 according to a fourth embodiment of the present invention includes a storage device and a processor, where the storage device is used to store a computer program, and the processor runs the computer program to make the mobile terminal 101 execute the above-mentioned automatic fire extinguishing method for a vehicle.
The present embodiment also provides a storage medium on which a computer program used in the above-mentioned mobile terminal 101 is stored, which when executed, includes the steps of:
acquiring temperature information of an engine compartment in a target automobile and acquiring line information of the target automobile;
judging whether the temperature information and the line information both meet fire extinguishing conditions;
when the temperature information and the line information are judged to meet the fire extinguishing condition, controlling a heater in a gas generator in the engine compartment to heat an inflating agent so as to enable the inflating agent to carry out a sodium nitride reaction to generate nitrogen;
judging whether the current air pressure of the gas generator is greater than an air pressure threshold value;
when the current air pressure is judged to be larger than the air pressure threshold value, a channel between the gas generator and a fire extinguishing agent storage chamber is opened so as to enable the nitrogen to be filled into the fire extinguishing agent storage chamber;
and controlling the fire extinguishing agent in the fire extinguishing agent storage chamber to diffuse towards the engine compartment under the punching of the nitrogen gas so as to extinguish the fire of the engine compartment. The storage medium, such as: ROM/RAM, magnetic disk, optical disk, etc.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is used as an example, in practical applications, the above-mentioned function distribution may be performed by different functional units or modules according to needs, that is, the internal structure of the storage device is divided into different functional units or modules to perform all or part of the above-mentioned functions. Each functional unit and module in the embodiments may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit, and the integrated unit may be implemented in a form of hardware, or may be implemented in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application.
Those skilled in the art will appreciate that the configuration shown in fig. 3 is not intended to be limiting, and may include more or fewer components than those shown, or some components in combination, or a different arrangement of components, and that the method of automatically extinguishing an automobile of fig. 1-2 may be implemented using more or fewer components than those shown, or some components in combination, or a different arrangement of components. The unit, module, etc. referred to herein is a series of computer programs that can be executed by a processor (not shown) in the target vehicle automatic fire extinguishing system and that are each capable of performing a specific function, and that can be stored in a storage device (not shown) of the target vehicle automatic fire extinguishing system.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. An automatic fire extinguishing method for an automobile, characterized in that the method comprises:
acquiring temperature information of an engine compartment in a target automobile and acquiring line information of the target automobile;
judging whether the temperature information and the line information both meet fire extinguishing conditions;
when the temperature information and the line information are judged to meet the fire extinguishing condition, controlling a heater in a gas generator in the engine compartment to heat an inflating agent so as to enable the inflating agent to carry out a sodium nitride reaction to generate nitrogen;
judging whether the current air pressure of the gas generator is greater than an air pressure threshold value;
when the current air pressure is judged to be larger than the air pressure threshold value, a channel between the gas generator and a fire extinguishing agent storage chamber is opened so as to enable the nitrogen to be filled into the fire extinguishing agent storage chamber;
and controlling the fire extinguishing agent in the fire extinguishing agent storage chamber to diffuse towards the engine compartment under the punching of the nitrogen gas so as to extinguish the fire of the engine compartment.
2. The automatic fire extinguishing method for vehicles according to claim 1, wherein the step of judging whether both the temperature information and the line information satisfy fire extinguishing conditions comprises:
acquiring the current temperature stored in the temperature information, and judging whether the current temperature is greater than a temperature threshold value;
when the current temperature is judged to be higher than the temperature threshold value, response information stored in the line information is obtained, and whether an abnormal line exists on the target automobile or not is judged according to the response information;
and when the abnormal line exists on the target automobile, judging that the temperature information and the line information both meet the fire extinguishing condition.
3. The automatic fire extinguishing method for vehicles according to claim 2, wherein the step of determining whether an abnormal line exists on the target vehicle based on the response information comprises:
acquiring a response identifier of each automobile line in the response information, and judging whether the response identifier is a preset identifier or not;
and when the response identifier is judged not to be the preset identifier, marking the automobile line corresponding to the response identifier as the abnormal line.
4. The automatic fire extinguishing method for vehicle according to claim 2, wherein after the step of determining whether there is an abnormal line on the target vehicle based on the response information, the method further comprises:
when the abnormal line does not exist on the target automobile, shooting an image of the engine compartment to obtain a current image;
performing image recognition on the current image to obtain image characteristics, and judging whether the image characteristics are matched with the flame characteristics;
and when the image characteristic is matched with the flame characteristic, controlling a heater in the gas generator to heat the inflating agent so as to enable the inside of the inflating agent to carry out a sodium nitride reaction to generate nitrogen.
5. The automatic fire extinguishing method for vehicles according to claim 2, further comprising:
and when the current temperature is judged to be less than or equal to the temperature threshold value and the abnormal line exists on the target automobile, sending a prompt alarm aiming at the abnormal line.
6. The automatic fire extinguishing method for an automobile according to claim 1, wherein after the step of controlling the fire extinguishing agent in the fire extinguishing agent storage chamber to diffuse toward the engine compartment under the pressure of the nitrogen gas, the method further comprises:
acquiring temperature and state images of the engine compartment in real time to obtain fire extinguishing feedback information, and acquiring a local pre-stored communication address;
and sending the fire extinguishing feedback information to the communication address according to a preset time interval.
7. An automotive automatic fire extinguishing system, characterized in that the system comprises:
the system comprises an information acquisition module, a data processing module and a data processing module, wherein the information acquisition module is used for acquiring temperature information of an engine compartment in a target automobile and acquiring line information of the target automobile;
the fire extinguishing judgment module is used for judging whether the temperature information and the line information both meet fire extinguishing conditions;
the heating control module is used for controlling a heater in a gas generator in the engine compartment to heat an inflating agent so as to enable the inflating agent to perform a sodium nitride reaction to generate nitrogen when the temperature information and the line information are judged to meet the fire extinguishing condition;
the fire extinguishing channel control module is used for judging whether the current air pressure of the gas generator is greater than an air pressure threshold value or not, and opening a channel between the gas generator and a fire extinguishing agent storage chamber when the current air pressure is judged to be greater than the air pressure threshold value so as to fill the nitrogen into the fire extinguishing agent storage chamber;
and the fire extinguishing execution module is used for controlling the fire extinguishing agent in the fire extinguishing agent storage chamber to diffuse towards the engine compartment under the punching of the nitrogen so as to extinguish the fire of the engine compartment.
8. The automatic fire extinguishing system for automobiles according to claim 7, wherein said fire extinguishing judgment module is further for:
acquiring the current temperature stored in the temperature information, and judging whether the current temperature is greater than a temperature threshold value;
when the current temperature is judged to be higher than the temperature threshold value, response information stored in the line information is obtained, and whether an abnormal line exists on the target automobile or not is judged according to the response information;
and when the abnormal line exists on the target automobile, judging that the temperature information and the line information both meet the fire extinguishing condition.
9. A mobile terminal, characterized by comprising a storage device for storing a computer program and a processor for executing the computer program to cause the mobile terminal to perform the automatic fire extinguishing method for an automobile according to any one of claims 1 to 6.
10. A storage medium, characterized in that it stores a computer program used in the mobile terminal of claim 9, which when executed by a processor implements the steps of the automatic fire extinguishing method for an automobile of any one of claims 1 to 6.
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| CN202010351567.9A CN111494839A (en) | 2020-04-28 | 2020-04-28 | Automatic fire extinguishing method and system for automobile, mobile terminal and storage medium |
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| CN202010351567.9A CN111494839A (en) | 2020-04-28 | 2020-04-28 | Automatic fire extinguishing method and system for automobile, mobile terminal and storage medium |
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