CN114042272B - Automatic fire extinguishing device for storage battery box of subway storage battery engineering vehicle - Google Patents
Automatic fire extinguishing device for storage battery box of subway storage battery engineering vehicle Download PDFInfo
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- CN114042272B CN114042272B CN202111230097.1A CN202111230097A CN114042272B CN 114042272 B CN114042272 B CN 114042272B CN 202111230097 A CN202111230097 A CN 202111230097A CN 114042272 B CN114042272 B CN 114042272B
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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
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
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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
- A62C37/36—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The invention discloses an automatic fire extinguishing device for a storage battery box of a subway storage battery engineering truck, relates to the technical field of operation monitoring of subway storage battery engineering trucks, and solves the technical problems that the storage battery state of the subway storage battery engineering truck cannot be monitored and predicted in the existing scheme, and the fire cannot be extinguished in time when the storage battery catches fire; the system comprises automatic fire extinguishing equipment and a monitoring module applied to a storage battery box, wherein the monitoring module comprises a data acquisition unit, a processor and an early warning feedback unit; the invention is provided with the data acquisition unit and the processor, and the data acquisition unit is used for acquiring monitoring data, can fully utilize data which can affect the storage battery box, monitors and predicts the state of the storage battery box in real time, and ensures that the abnormality can be eliminated in time when and before the storage battery box is in an abnormal state; the prediction model of the invention can ensure the accuracy of the prediction model and the fire extinguishing timeliness of the automatic fire extinguishing equipment by acquiring standard training data.
Description
Technical Field
The invention belongs to the technical field of operation monitoring of subway battery engineering vehicles, and particularly relates to an automatic fire extinguishing device for a battery box of a subway battery engineering vehicle.
Background
With the rapid development of the rail transit industry, subway engineering vehicles are also continuously improved and developed. The traditional subway engineering vehicle takes an internal combustion engine as power, so that the energy consumption is high and the pollution is serious. Therefore, the conventional subway engineering vehicle is gradually replaced by a subway battery engineering vehicle.
The subway storage battery engineering vehicle realizes power supply through the electric storage battery, and the power supply mode can avoid harm to the environment and passengers. The works which need to be undertaken by the subway storage battery engineering vehicle comprise carrying construction materials, towing a subway vehicle, pressing a subway line and regularly checking and maintaining a contact net and the subway line. Therefore, the subway storage battery engineering vehicle needs to work in various extreme environments, which brings great pressure to the storage battery equipped for the subway storage battery engineering vehicle; therefore, how to monitor and even predict the abnormal state of the storage battery and timely perform the abnormal treatment is a troublesome problem.
Disclosure of Invention
The invention provides an automatic fire extinguishing device for a storage battery box of a subway storage battery engineering vehicle, which is used for solving the technical problems that the storage battery state of the subway storage battery engineering vehicle cannot be monitored and predicted in the prior art, and the fire cannot be extinguished in time when the storage battery catches fire.
The purpose of the invention can be realized by the following technical scheme: the automatic fire extinguishing device for the storage battery box of the subway storage battery engineering vehicle comprises automatic fire extinguishing equipment and a monitoring module applied to the storage battery box;
the monitoring module comprises a data acquisition unit, a processor and an early warning feedback unit; the data acquisition units are respectively electrically connected with the acquisition sensors; the early warning feedback unit is in communication and/or electrical connection with the intelligent terminal;
the processor generates a monitoring label and a prediction label through the monitoring data acquired by the data acquisition unit;
the processor controls the automatic fire extinguishing equipment to extinguish the fire of the storage battery box according to the monitoring label or the prediction label; and the early warning feedback unit performs early warning feedback according to the monitoring label or the prediction label.
The processor generates a monitoring label and a prediction label through the monitoring data acquired by the data acquisition unit;
controlling automatic fire extinguishing equipment to extinguish the fire of the storage battery box according to the monitoring label or the prediction label; and the early warning feedback unit performs early warning feedback according to the monitoring label or the prediction label.
Preferably, the monitoring data comprises image data and smoke concentration, and the image data is a picture of the storage battery box shot by a high-definition camera; obtaining a monitoring tag according to the image data and the smoke concentration, comprising:
obtaining a smoke change curve in a polynomial fitting mode by taking the obtaining time as an independent variable and the smoke concentration as a dependent variable; converting the smoke change curve to a standard coordinate axis by a coordinate axis translation method; the smoke concentration corresponding to the origin of the coordinate axis in the standard coordinate axis is a smoke standard threshold; the smoke standard threshold is a real number greater than 0;
calculating an integral value of a smoke change curve according to the standard coordinate axis and the independent variable;
when the integral value is larger than or equal to the integral threshold value and/or an open fire is identified in the image data, marking the monitoring label as 1; otherwise, the monitor tag is marked 0.
Preferably, the monitoring data includes temperature, humidity, pressure and smoke concentration; obtaining a prediction label according to the monitoring data and the prediction model; the prediction flag has a value of 0 or 1, and when the prediction flag is 0, it indicates that the battery box is not on fire, and when the prediction flag is 1, it indicates that there is a possibility of fire in the battery box.
Preferably, the prediction model is obtained by training an artificial intelligence model through standard training data; the artificial intelligence model comprises one or more of an error inverse feedback neural network, an RBF neural network and a deep convolutional neural network.
Preferably, when the monitoring label and/or the prediction label is 1, the automatic fire extinguishing device is controlled to extinguish the fire of the storage battery box.
Preferably, the automatic fire extinguishing apparatus includes a non-pressure storage type fire extinguishing device and a pressure storage type fire extinguishing device.
Preferably, the standard training data comprises non-stored pressure type training data and stored pressure type training data;
the non-pressure storage type training data comprise monitoring data corresponding to the storage battery box in a fire situation and a prediction label corresponding to the monitoring data; the pressure storage type training data comprise monitoring data of a storage battery box at a specific time or in a specific time period before a fire occurs and a prediction label corresponding to the monitoring data; and the prediction labels in the standard training data are marked by human marking or machine marking.
Preferably, the specific time is 3 seconds or 15 seconds before the fire occurs in the battery box.
Preferably, the specific time period is 3 to 15 seconds before the fire occurs in the storage battery.
Preferably, the non-pressure storage type fire extinguishing device extinguishes the storage battery box through a perfluorohexanone fire extinguishing agent.
Preferably, the collection sensor comprises a temperature sensor, a smoke detector, a temperature sensing cable, a humidity sensor and a pressure sensor.
Preferably, the intelligent terminal comprises an intelligent mobile phone, a notebook computer, a tablet personal computer and a fire alarm host.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention is provided with a data acquisition unit and a processor, wherein the data acquisition unit is used for acquiring monitoring data; acquiring a monitoring label by combining a polynomial fitting method through image data and smoke concentration in the monitoring data, wherein the monitoring label is used as one evaluation standard for judging the state of the storage battery box; acquiring a prediction label through a prediction model by monitoring the temperature, the humidity, the pressure and the smoke concentration in the data and combining standard training data, and taking the prediction label as another evaluation standard; the data that above-mentioned setting can make full use of can produce the influence to the battery box, the state of real-time supervision and timely prediction battery box guarantees can in time eliminate unusually when the battery box abnormal conditions appear and before the abnormal conditions appear.
2. The prediction model in the invention is obtained through standard training data; the standard training data are divided into non-pressure storage type training data and pressure storage type training data according to the difference of the automatic fire extinguishing equipment, and the standard training data are very fit with the characteristics of the automatic fire extinguishing equipment, so that the accuracy of a prediction model can be ensured, and the fire extinguishing timeliness of the automatic fire extinguishing equipment is ensured.
3. The invention selects the fire extinguishing agent as perfluorohexanone, which is an important substitute of halon fire extinguishing agent, is a fluorinated ketone compound, is clear, colorless and tasteless liquid, and has the outstanding advantages that: green and environment-friendly substances, and almost no harm to human bodies and the environment. The fire extinguishing agent is liquid at normal temperature, is easy to vaporize, has strong heat absorption, is suitable for protecting valuable instruments and articles, has no residue, can be used as a cleaning agent and a solvent, and is a typical environment-friendly fire extinguishing agent. Perfluorohexanone extinguishants have many of the same advantages in extinguishing fires as halons: the fire extinguishing agent has high fire extinguishing efficiency and low fire extinguishing concentration, is effective to A, B, C fires, is non-conductive and free of traces, is suitable for fire extinguishing in two modes of total flooding and local spraying, and has excellent fire extinguishing performance. The perfluorohexanone fire extinguishing agent has better effect than other types of fire extinguishing agents in the aspect of electrical insulation performance, and does not cause damage to electric appliances after being used, even has no residual trace.
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In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of the principles of the present invention;
fig. 2 is a schematic diagram of a monitoring module according to the present invention.
Detailed Description
The technical solutions of the present invention will be described below clearly and completely in conjunction with the embodiments, 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.
The terminology used herein is for the purpose of describing embodiments and is not intended to be limiting and/or limiting of the present disclosure; it should be noted that the singular forms "a," "an," and "the" include the plural forms as well, unless the context clearly indicates otherwise; also, although the terms first, second, etc. may be used herein to describe various elements, the elements are not limited by these terms, which are only used to distinguish one element from another.
Referring to fig. 1-2, the application discloses an automatic fire extinguishing device for a storage battery box of a subway storage battery engineering truck, which comprises automatic fire extinguishing equipment and a monitoring module applied to the storage battery box;
the monitoring module in this application includes data acquisition unit, treater and early warning feedback unit. The data acquisition unit is used for collecting and judging whether the automatic fire extinguishing equipment is started or not, and therefore the data acquisition unit is in communication connection with the high-definition camera and the acquisition sensor respectively. The processor in this embodiment may be a fire extinguishing controller, and the early warning feedback unit may be a fire alarm host.
The high definition digtal camera in this embodiment is used for gathering the picture of battery box in real time, when a high definition digtal camera can satisfy the demand of image quantity and quality, then only set up a high definition digtal camera can, otherwise, can set up a plurality of high definition digtal cameras and carry out joint collection. The acquisition sensor in the embodiment comprises a temperature sensor, a humidity sensor, a pressure sensor, an air quality detector and the like, and is used for detecting the data of the storage battery box and the environment where the storage battery box is located.
The early warning feedback unit of the embodiment is in communication connection with the intelligent terminal, and the intelligent terminal comprises a notebook computer, an intelligent mobile phone and a tablet computer; the early warning feedback unit carries out early warning according to the prediction label, and maintainers or managers can take measures in time according to the early warning.
One of the cores in this application is to obtain the monitoring label, and the effect of monitoring label is to estimate and look like the current state of battery box, includes:
obtaining a smoke change curve in a polynomial fitting mode by taking the obtaining time as an independent variable and the smoke concentration as a dependent variable; converting the smoke change curve to a standard coordinate axis by a coordinate axis translation method; the coordinate axis translation method in this embodiment is a commonly used mathematical processing method, and aims to use the smoke standard threshold as the horizontal axis and make corresponding changes to the smoke variation curve, so that a new coordinate axis, that is, a smoke concentration value corresponding to the origin of the standard coordinate axis, is a smoke standard value, and further calculation is facilitated.
Obtaining an integral value of a smoke change curve according to the standard coordinate axis and the independent variable; mathematically, the integral value of the curve within the range allowed by the independent variable is actually equivalent to the area between the curve and the X-axis and the independent variable, and the integral value is used as the basis for determining whether the smoke density is abnormal in the present embodiment.
When the integral value is larger than or equal to the integral threshold value and/or an open fire is identified in the image data, marking the monitoring label as 1; otherwise, marking the monitoring tag as 0; if the integral value is 10 and the integral threshold value is 8, the state of the storage battery box (which can also be understood as a storage battery in the storage battery box) is judged to be abnormal, and the monitoring label is marked as 1; if an open fire is identified in the image data corresponding to the battery box, the battery box is determined to be in an abnormal state, and the monitoring tag is marked as 1. Whether the storage battery box is abnormal or not is judged by comprehensively considering real-time smoke concentration and image data, and one of an integral value and the image data can be considered only by the scheme provided by the application and can be considered jointly, so that multiple schemes can be combined to realize real-time state monitoring of the storage battery box on different occasions or under the requirement of monitoring precision.
In the application, monitoring data such as temperature, humidity, pressure, smoke concentration and the like are combined with a prediction model to obtain a prediction label according to the monitoring data.
The prediction model in this embodiment is obtained by training an artificial intelligence model through standard training data, and the artificial intelligence model in this embodiment may be one of an error reverse feedback neural network, an RBF neural network, and a deep convolution neural network, or may be a fusion model formed by fusing more than two types of models, and the specific selection is determined according to the accuracy requirement and the efficiency requirement.
The automatic fire extinguishing equipment comprises a non-pressure storage type fire extinguishing device, wherein the non-pressure storage type fire extinguishing device extinguishes a storage battery box through a perfluorohexanone fire extinguishing agent; in some other preferred embodiments, the automatic fire extinguishing apparatus further comprises a pressure-storing type fire extinguishing device. The main difference of the two fire extinguishing equipments is that the non-pressure storage type fire extinguishing device can be started instantly to complete fire extinguishing rapidly, and the pressure storage type fire extinguishing device can spray the fire extinguishing agent within 3-15 seconds after being started to achieve the purpose of fire extinguishing.
In a particular application, the fire extinguishing controller specifically comprises a fire extinguishing controller, a fire early warning host, a fire extinguishing controller panel and an electromagnetic driving device. The fire extinguishing controller has data analysis and calculation capacity, and can independently judge fire and fire signals and start the non-pressure-storage type fire extinguishing device in a linkage manner. When the fire extinguishing controller detects the fire alarm signal, the fire alarm signal is uploaded to the fire alarm host. Meanwhile, a warning indicator lamp on a panel of the fire extinguishing controller is lightened and gives an alarm; spray red fire extinguishing indicator lamp and light after the controller of putting out a fire confirms that alarm signal is fire signal, put out a fire the integrated circuit board and start fire extinguishing systems through time delay 30S (time adjustable), open the electromagnetic drive device that puts out a fire and put out a fire, information conveys TCMS system through the ethernet simultaneously.
The manual fire extinguishing function of the cab: when a manual fire-extinguishing button of a cab is pressed, a red fire-extinguishing indicator lamp sprayed on a fire-extinguishing controller board is lightened, the fire-extinguishing controller starts a fire-extinguishing system to open a fire-extinguishing electromagnetic driving device for extinguishing fire through time delay of 30S (time adjustable), and meanwhile, information is transmitted to a TCMS system through the Ethernet.
Different standard training data are set for different automatic fire extinguishing equipment, namely non-pressure storage type training data and pressure storage type training data, wherein the non-pressure storage type training data comprise corresponding monitoring data when a fire occurs in a storage battery box and a prediction label corresponding to the monitoring data; the pressure storage type training data comprise monitoring data of a specific time or a specific time period before the storage battery box generates a fire and a prediction label corresponding to the monitoring data. The prediction label in the standard training in this embodiment can be obtained through manual labeling, and can also be obtained through machine labeling, so that the labeling result of the prediction label can meet the requirement.
Specifically, the stored pressure type training data mentioned above refers to a specific time or a specific time period, and according to the fire extinguishing principle of the stored pressure type fire extinguishing apparatus, the specific time is specifically 3 seconds, 15 seconds before the fire occurs in the storage battery box, or even other reasonable times, and the specific time period is specifically 3-15 seconds before the fire occurs in the storage battery. The operating principle that the laminating pressure-storage type fire extinguishing device is arranged at a specific time in the embodiment is prejudged in advance, and the pressure-storage type fire extinguishing device is guaranteed to extinguish fire in time.
And when the monitoring label and/or the prediction label is 1, controlling the automatic fire extinguishing equipment to extinguish the fire of the storage battery box. This scheme is considered from real-time and two angles of prediction, guarantees the promptness that the battery box was put out a fire.
When only the non-pressure storage type fire extinguishing device is equipped, the judgment can be carried out only through the monitoring label, namely when the monitoring label is 1, the non-pressure storage type fire extinguishing device is controlled to extinguish the fire of the storage battery box through the perfluorohexanone fire extinguishing agent; the fire extinguishing characteristic of the non-stored pressure type fire extinguishing apparatus can be exerted.
When only the pressure storage type fire extinguishing apparatus in the present application is equipped, the determination can be made only by the prediction tag. When the prediction model is obtained in training, the fire extinguishing characteristics of the pressure storage type fire extinguishing device are considered, so that timely fire extinguishing can be ensured by judging through the prediction tag.
Finally, no matter what be equipped with is not store pressure formula extinguishing device or store pressure formula extinguishing device, no matter be the monitoring label be 1 or predict the label be 1, all need carry out the early warning feedback through early warning feedback unit, guarantee that maintainer can in time know the condition, when necessary, can send the address to maintainer through early warning feedback unit, avoid casualties as far as possible.
The working principle of the invention is as follows:
acquiring monitoring data through a monitoring module, taking the acquisition time as an independent variable and the smoke concentration in the monitoring data as a dependent variable, and acquiring a smoke change curve in a polynomial fitting manner; converting the smoke change curve to a standard coordinate axis by a coordinate axis translation method; calculating an integral value of a smoke change curve according to the standard coordinate axis and the independent variable; when the integral value is larger than or equal to the integral threshold value and/or an open fire is identified in the image data, marking the monitoring label as 1; otherwise, the monitor tag is marked 0.
And (3) according to the temperature, the humidity, the pressure and the smoke concentration in the monitoring data, combining standard training data, obtaining a prediction label through a prediction model, and controlling automatic fire extinguishing equipment to extinguish the fire of the storage battery box when the monitoring label and/or the prediction label is 1.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the invention as defined in the following claims.
Claims (2)
1. The automatic fire extinguishing device for the storage battery box of the subway storage battery engineering vehicle comprises automatic fire extinguishing equipment and a monitoring module applied to the storage battery box, and is characterized in that the monitoring module comprises a data acquisition unit, a processor and an early warning feedback unit; the data acquisition units are respectively electrically connected with the acquisition sensors; the early warning feedback unit is in communication and/or electrical connection with the intelligent terminal;
the processor generates a monitoring label and a prediction label through the monitoring data acquired by the data acquisition unit; wherein, the values of the monitoring label and the prediction label both comprise 0 or 1;
the processor controls the automatic fire extinguishing equipment to extinguish the fire of the storage battery box according to the monitoring label or the prediction label; the early warning feedback unit carries out early warning feedback according to the monitoring label or the prediction label;
the monitoring data comprise temperature, humidity, pressure, image data and smoke concentration, the image data are pictures of the storage battery box shot by a high-definition camera, and a prediction label is obtained by combining a prediction model according to the temperature, the humidity, the pressure and the smoke concentration in the monitoring data; obtaining a monitoring tag according to the image data and the smoke concentration, comprising:
obtaining a smoke change curve in a polynomial fitting mode by taking the obtaining time as an independent variable and the smoke concentration as a dependent variable; converting the smoke change curve to a standard coordinate axis by a coordinate axis translation method; the smoke concentration corresponding to the origin of the coordinate axis in the standard coordinate axis is a smoke standard threshold; the smoke standard threshold is a real number greater than 0;
calculating an integral value of a smoke change curve according to the standard coordinate axis and the independent variable;
when the integral value is greater than or equal to the integral threshold value and the open fire is identified in the image data, marking the monitoring label as 1; otherwise, marking the monitoring tag as 0;
when the monitoring label and/or the prediction label is 1, controlling automatic fire extinguishing equipment to extinguish the fire of the storage battery box;
the prediction model is obtained by training an artificial intelligent model through standard training data; the artificial intelligence model comprises one or more of an error inverse feedback neural network, an RBF neural network and a deep convolutional neural network; the standard training data comprises non-pressure storage type training data and pressure storage type training data;
the non-pressure storage type training data comprise monitoring data corresponding to the storage battery box in a fire situation and a prediction label corresponding to the monitoring data; the pressure storage type training data comprise monitoring data of a storage battery box at a specific time or in a specific time period before a fire occurs and a prediction label corresponding to the monitoring data; the prediction labels in the standard training data are marked manually or by a machine;
the automatic fire extinguishing equipment comprises a non-pressure storage type fire extinguishing device and a pressure storage type fire extinguishing device; the specific time period is specifically 3-15 seconds before the storage battery is in a fire state.
2. The automatic fire extinguishing device for the storage battery box of the subway battery engineering vehicle as claimed in claim 1, wherein said non-pressure-storage type fire extinguishing device extinguishes the storage battery box by a perfluorohexanone fire extinguishing agent.
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