CN114904198B - Fire-fighting water level monitoring system and method - Google Patents
Fire-fighting water level monitoring system and method Download PDFInfo
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- CN114904198B CN114904198B CN202210591170.6A CN202210591170A CN114904198B CN 114904198 B CN114904198 B CN 114904198B CN 202210591170 A CN202210591170 A CN 202210591170A CN 114904198 B CN114904198 B CN 114904198B
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/50—Testing or indicating devices for determining the state of readiness of the equipment
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/08—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using communication transmission lines
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Abstract
The invention discloses a fire-fighting water level monitoring system and method, and relates to the technical field of water level alarming. The system comprises an information acquisition module, an information display module, a monitoring alarm module and a main control module; the information acquisition module acquires water level information in a water tank, wherein the water tank is connected with the fire engine body through a fire hydrant; the information display module acquires water level information in the water tank, and the water level information in the water tank is projected on the fire fighting truck, so that the fire fighting truck can be monitored in time; the monitoring alarm module sends alarm information to the main control module, and reasonably controls the water outlet speed of the water gun according to the alarm information, so that sufficient water source for fire fighting water is ensured; the main control module is used for receiving alarm information; the invention effectively solves the problem of signal delay when the alarm information is sent, and comprehensively analyzes the capability value of the channel transmission information, thereby ensuring that the alarm information can be received in time and preventing more articles and property loss.
Description
Technical Field
The invention relates to the technical field of water level alarming, in particular to a fire-fighting water level monitoring system and method.
Background
Fire water is water used for extinguishing fire.
When receiving a call for alarm, the fire truck can drive to a fire area to extinguish fire; according to different types of fire fighting vehicles, water levels with different capacities can be loaded inside the fire fighting vehicles for fire extinguishing, but generally, water sources loaded in the fire fighting vehicles only support water quantity of 8min, if the fire is still not extinguished after 8min, a fire center can request a plurality of fire fighting vehicles to alarm to help to extinguish the fire. However, if the fire fighting vehicle is only waiting to extinguish the fire, the fire is promoted because the fire source does not receive the fire extinguishing agent for a long time; therefore, water sources within fire hydrants are often used to help extinguish fires;
for example, in the patent (application number: 202010062576.6), the fire hydrant closest to the fire engine can be found according to the position of the fire engine to extinguish the fire, and then the running condition of each fire hydrant is known through a matching algorithm, so that the loss caused by insufficient water supply can be reduced. However, in this patent, although fire can be extinguished by the water source condition in the hydrant, when the water source in the hydrant is reduced, the water discharge speed of the fire hydrant cannot be controlled properly according to the remaining water source, so that fire can be extinguished properly, and the capacity of the remaining water source is not enough to support fire extinguishing.
When lacking the water source and reporting to the police in the water tank of being connected with the fire hydrant simultaneously, also can lead to alarm signal to produce the delay because of reasons such as signal delay, can't in time solve the not enough problem of water source. Therefore, improvement of the above-described problems is required.
Disclosure of Invention
The present invention is directed to a fire-fighting water level monitoring system and method, so as to solve the problems of the background art.
In order to solve the technical problems, the invention provides the following technical scheme: a fire-fighting water level monitoring system comprises an information acquisition module, an information display module, a monitoring alarm module and a main control module
The information acquisition module acquires water level information in a water tank, wherein the water tank is connected with the fire engine body through a fire hydrant;
the information display module acquires water level information in the water tank, and the water level information in the water tank is projected on the fire fighting truck, so that the fire fighting truck can be monitored in time;
the monitoring alarm module sends alarm information to the main control module, and reasonably controls the water outlet speed of the water gun according to the alarm information, so that sufficient fire-fighting water is ensured;
the main control module is used for receiving alarm information;
the main control module is connected with the information acquisition module, the information display module and the monitoring alarm module.
The information acquisition module comprises a fire fighting truck positioning unit, a plane display unit, a water level state display unit, a fire fighting lance speed display unit and a data storage unit;
the fire engine positioning unit is used for carrying out GPS positioning on the fire engine and the fire hydrant;
the plane display unit is used for establishing a two-dimensional plane and displaying the positions of the fire engine and the fire hydrant on the two-dimensional plane;
the water level state display unit is used for monitoring water level information in the fire fighting truck and the water tank, so that an alarm can be given in time to prompt a fireman to pay attention to water quantity;
the fire-fighting lance speed display unit is used for acquiring water outlet speed information of the fire-fighting lance;
the data storage unit is used for storing information so as to be convenient for calling the information in time;
the data storage unit is connected with the fire fighting truck positioning unit, the plane display unit, the water level state display unit and the fire fighting lance speed display unit.
The information display module comprises a two-dimensional model establishing unit, a virtual projection establishing unit and a monitoring alarm sending unit;
the two-dimensional model establishing unit is used for constructing a two-dimensional plane model on the fire fighting truck, setting x y rectangles, and displaying the two-dimensional model on the fire fighting truck so as to display projection on the two-dimensional model;
the virtual projection establishing unit is used for virtually projecting the water tank connected with the fire hydrant and projecting the water tank into the two-dimensional model, so that the water level change in the water tank can be monitored in time;
and the monitoring alarm sending unit sends alarm information to the monitoring alarm module if the height of the water level in the water tank is monitored to be smaller than a preset standard height, so as to remind a fireman of being alert of the residual fire-fighting water consumption.
Furthermore, the monitoring alarm module comprises an alarm signal receiving and displaying unit, a channel replacing unit, a channel state displaying unit and a water gun water outlet rate control unit;
the alarm signal receiving and displaying unit is used for receiving the water level alarm information, recording the receiving time of the alarm signal and storing the receiving time into the data storage unit;
the channel replacing unit is used for acquiring a water level alarm signal, and replacing the first channel into a second channel if the alarm signal is detected not to be fed back to the projection terminal within the preset time; the channel state display unit analyzes the state of the second channel when transmitting signals and detects whether the first channel influences the transmission information of the second channel, thereby ensuring that the second channel can smoothly transmit alarm signals;
the water outlet rate control unit of the water gun analyzes whether the residual water in the first water tank can completely extinguish the fire according to the received alarm information; if the water quantity in the water tank can be supported to a fire extinguishing source, extinguishing fire according to the current water outlet speed of the water gun; if the water quantity in the water tank can not be supported to a fire extinguishing source, controlling the water outlet speed of the water gun so as to ensure that the fire fighting water is sufficient;
and the water outlet rate control unit of the water gun is connected with the alarm signal receiving and displaying unit, the channel replacing unit and the channel state displaying unit.
The main control module comprises an information prompt unit and an information receiving unit;
the information prompting unit feeds back information to a fireman when monitoring that the water level in the water tank is lower than a threshold value, so that the fireman can analyze and process the information in advance;
and the information receiving unit receives the alarm information sent by the water tank and feeds the alarm information back to the projection end.
Further, the method comprises the following steps:
z01: acquiring position moving information of the fire fighting truck, water level information stored in the fire fighting truck and water level information in a water tank with a preset radius by taking the fire fighting truck as a circle center;
z02: monitoring whether a water source stored in the fire fighting truck can completely extinguish a fire; if the water source stored in the fire engine is not enough to completely extinguish the fire, a fire hydrant closest to the position of the fire engine is taken, and the fire hydrant is connected with a first water tank to extinguish the fire;
z03: establishing a two-dimensional plane model, and projecting water level information in the first water tank on the fire fighting truck to form a projection end; monitoring the height information of the water level in the first water tank, and if the height of the water level in the first water tank is monitored to be lower than a preset standard height, sending an alarm signal to the first water tank and transmitting the alarm signal to a projection end;
z04: recording the time period of sending the alarm signal by the first water tank, and monitoring the time period of receiving the alarm signal by the projection end; if the projection end does not receive the alarm signal within the preset time, changing the current first channel node into a second channel; analyzing whether the second channel is in the information transmission process state, and if the second channel is in the information transmission state, reserving a time node until the information transmission of the second channel is finished; if the second channel is in a non-information transmission state, the projection end receives alarm information and controls the water outlet rate of the water gun;
z05: analyzing whether the residual water level in the first water tank can extinguish the fire source or not, and if detecting that the residual water level in the first water tank can extinguish the fire source, extinguishing the fire according to the current water outlet speed of the water gun; if the residual water level in the first water tank is detected, the fire source cannot be eliminated, and the water outlet speed of the water gun is controlled until the second water tank is found.
Further, in the step Z05, acquiring a water level capacity of the first reservoir as B and at least two water guns connected to the first water tank, detecting that a water speed of the water guns is V, if it is detected that the remaining water level in the first water tank can extinguish the fire source, controlling the fire source according to the current water speed of the water guns, and publishing and displaying a use time t = B/V of the remaining water amount in the reservoir on a projection;
if detecting that the residual water level in the first water tank can not extinguish the fire source, positioning to a fire hydrant position W = (x, y) closest to the fire engine, and the water amount in the water tank corresponding to the fire hydrant is sufficient, acquiring that the position of the fire engine in the two-dimensional space is M = (a, b), according to a formula:
if it is detected
When the water gun is required to be replaced, the second water tank is required, and the water gun water outlet speed is smaller than V;
if it is detected
When the water is discharged, the water discharge speed of the water gun does not need to be changed, and is equal to V;
wherein N is the distance between the fire truck and the fire hydrant, C is the fastest speed for the firefighter to walk from the fire truck to the fire hydrant, S is the time for which the remaining water level in the first water tank can supply water, (x, y) is the position coordinate of the fire hydrant, and (a, b) is the position coordinate of the fire truck.
And judging whether the residual water level in the first water tank can extinguish the fire source, so that the firefighter can analyze the residual water level according to the field fire and feed the analyzed result back to the main control module.
Further, in step Z04, analyzing whether the second channel is in the information transmission process state, and determining whether the second channel is affected by the first channel, to obtain a channel delay of J, a signal strength of H, and a signal interference rate between adjacent channels of k;
according to the formula:
wherein: l refers to the ability to evaluate the transmission of the second channel information,
the method includes the steps that influence factors of channel time delay, signal strength and signal interference are respectively represented;
if the larger the capability value of the second channel information transmission is detected to be, the larger the capability value of the second channel information transmission is, the second channel information transmission is not influenced by the interference of the first channel, and the second channel starts to transmit an alarm signal; if the smaller the capability value of the second channel information transmission is detected, it indicates that the second channel information transmission is affected by the first channel.
Compared with the prior art, the invention has the following beneficial effects:
through the information display module, information in the water tank connected with the fire hydrant can be acquired in real time, dynamic information in the water tank can be visually observed, water tank alarm information can be received, and the reception of the alarm information in the water tank cannot be delayed; whether the residual water level in the water tank is enough to extinguish a fire can be quickly judged according to the alarm information, the information is processed in time, and the degree of fire spreading is effectively prevented; the invention effectively solves the problem of signal delay when sending alarm information, and comprehensively analyzes the capability value of the channel for transmitting information, thereby ensuring that the alarm information can be received in time and preventing more articles and property loss.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of the steps of a fire-fighting water level monitoring system and method according to the present invention;
FIG. 2 is a schematic diagram of the module components of a fire-fighting water level monitoring system and method according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides the following technical solutions:
a fire-fighting water level monitoring system comprises an information acquisition module, an information display module, a monitoring alarm module and a main control module
The information acquisition module acquires water level information in the fire engine body and a water tank connected with the fire engine through a fire hydrant;
the information display module acquires water level information in the water tank, and the water level information in the water tank is projected on the fire fighting truck, so that the fire fighting truck can be monitored in time;
the monitoring alarm module sends alarm information to the main control module, and reasonably controls the water outlet speed of the water gun according to the alarm information, so that sufficient water source for fire fighting water is ensured;
the main control module is used for receiving alarm information;
the main control module is connected with the information acquisition module, the information display module and the monitoring alarm module.
The information acquisition module comprises a fire fighting truck positioning unit, a plane display unit, a water level state display unit, a fire fighting lance speed display unit and a data storage unit;
the fire engine positioning unit is used for carrying out GPS positioning on the fire engine and the fire hydrant;
the plane display unit is used for establishing a two-dimensional plane and displaying the positions of the fire engine and the fire hydrant on the two-dimensional plane;
the water level state display unit is used for monitoring water level information in the fire fighting truck and the water tank, so that an alarm can be given in time to prompt a fireman to pay attention to water quantity;
the fire-fighting lance speed display unit is used for acquiring water outlet speed information of the fire-fighting lance;
the data storage unit is used for storing information so as to be convenient for calling the information in time;
the data storage unit is connected with the fire fighting truck positioning unit, the plane display unit, the water level state display unit and the fire fighting lance speed display unit.
The information display module comprises a two-dimensional model establishing unit, a virtual projection establishing unit and a monitoring alarm sending unit;
the two-dimensional model establishing unit is used for constructing a two-dimensional plane model on the fire fighting truck, setting x y rectangles, and displaying the two-dimensional model on the fire fighting truck so as to display projection on the two-dimensional model;
the virtual projection establishing unit is used for virtually projecting the water tank connected with the fire hydrant and projecting the water tank into the two-dimensional model, so that the water level change in the water tank can be monitored in time;
and the monitoring alarm sending unit sends alarm information to the monitoring alarm module if the height of the water level in the water tank is monitored to be smaller than a preset standard height, so as to remind a fireman of being alert of the residual fire-fighting water consumption.
Furthermore, the monitoring alarm module comprises an alarm signal receiving and displaying unit, a channel replacing unit, a channel state displaying unit and a water gun water outlet rate control unit;
the alarm signal receiving and displaying unit is used for receiving the water level alarm information, recording the receiving time of the alarm signal and storing the receiving time into the data storage unit;
the channel replacing unit is used for acquiring a water level alarm signal, and replacing the first channel into a second channel if the alarm signal is detected not to be fed back to the projection terminal within the preset time; the channel state display unit analyzes the state of the second channel when transmitting signals and detects whether the first channel influences the transmission information of the second channel, thereby ensuring that the second channel can smoothly transmit alarm signals;
the water outlet rate control unit of the water gun analyzes whether the residual water in the first water tank can completely extinguish the fire according to the received alarm information; if the water quantity in the water tank can be supported to a fire extinguishing source, extinguishing the fire according to the current water outlet speed of the water gun; if the water quantity in the water tank can not be supported to a fire extinguishing source, the water outlet speed of the water gun is controlled, so that sufficient fire-fighting water is ensured;
and the water outlet rate control unit of the water gun is connected with the alarm signal receiving and displaying unit, the channel replacing unit and the channel state displaying unit.
The main control module comprises an information prompt unit and an information receiving unit;
the information prompting unit feeds back information to a fireman when monitoring that the water level in the water tank is lower than a threshold value, so that the fireman can analyze and process the information in advance;
and the information receiving unit receives the alarm information sent by the water tank and feeds the alarm information back to the projection end.
Further, the method comprises the following steps:
z01: acquiring position movement information of the fire fighting truck, water level information stored in the fire fighting truck and water level information in a reclaimed water tank with a preset radius by taking the fire fighting truck as a circle center;
z02: monitoring whether a water source stored in the fire fighting truck can completely extinguish a fire; if the water source stored in the fire engine is not enough to completely extinguish the fire, a fire hydrant closest to the position of the fire engine is taken, and the fire hydrant is connected with the first water tank to extinguish the fire;
z03: establishing a two-dimensional plane model, and projecting water level information in the first water tank on the fire fighting truck to form a projection end; monitoring water level height information in the first water tank, and if the water level height in the first water tank is monitored to be lower than a preset standard height, sending an alarm signal to the first water tank and transmitting the alarm signal to the projection end;
z04: recording the time period of sending the alarm signal by the first water tank, and monitoring the time period of receiving the alarm signal by the projection end; if the projection end does not receive the alarm signal within the preset time, replacing the current first channel node to change into a second channel; analyzing whether the second channel is in the information transmission process state, and if the second channel is in the information transmission state, reserving a time node until the information transmission of the second channel is finished; if the second channel is in a non-information transmission state, the projection end receives alarm information and controls the water outlet rate of the water gun;
z05: analyzing whether the residual water level in the first water tank can extinguish the fire source or not, and if detecting that the residual water level in the first water tank can extinguish the fire source, extinguishing the fire according to the current water outlet speed of the water gun; if detecting that the residual water level in the first water tank can not extinguish the fire source, controlling the water outlet speed of the water gun until finding the second water tank.
Further, in the step Z05, acquiring a water level capacity of the first reservoir as B and at least two water guns connected to the first water tank, detecting that a water speed of the water guns is V, if it is detected that the remaining water level in the first water tank can extinguish the fire source, controlling the fire source according to the current water speed of the water guns, and publishing and displaying a use time t = B/V of the remaining water amount in the reservoir on a projection;
if detecting that the residual water level in the first water tank can not extinguish the fire source, positioning to a fire hydrant position W = (x, y) closest to the fire engine, wherein the water amount in the water tank corresponding to the fire hydrant is sufficient, and acquiring that the position of the fire engine in a two-dimensional space is M = (a, b), according to a formula:
if it is detected
In time, the water outlet speed of the water gun needs to be changed and the seeking is requiredThe water outlet speed of the water gun is less than V;
if it is detected
When the water speed is higher than the water speed, the water outlet speed is equal to V;
wherein N is the distance between the fire truck and the fire hydrant, C is the fastest speed for the firefighter to walk from the fire truck to the fire hydrant, S is the time for which the remaining water level in the first water tank can supply water, (x, y) is the position coordinate of the fire hydrant, and (a, b) is the position coordinate of the fire truck;
in the above process, through calculation
The distance between the fire truck and the fire hydrant can be analyzed, the positions of the fire truck and the fire hydrant are respectively obtained in the process, a distance formula can be directly obtained through the formula, the algorithm is simple and practical, and therefore the formula is used for calculation; the result of the N/C analysis can reflect the time consumed by the fire fighter when the fire fighting truck and the fire hydrant are connected through the formula, wherein the walking speed of the fire fighter is set to be the fastest speed, and whether the fire fighting truck can sink into a water source within the set time is simply and clearly reflected.
Judging whether the residual water level in the first water tank can extinguish the fire source, and if so, analyzing by a fireman according to the fire behavior on site and feeding back the analyzed result to the main control module;
compared with the conventional method that the alarm information is fed back to the fire-fighting alarm center and then fed back to the site from the fire-fighting alarm center, the alarm information cannot be delayed;
the firemen analyze the fire behavior on site and feed back the result of whether the potential energy of the fire on site is eliminated to the main control module, so as to call the water source in the second water tank in time.
Further, in step Z04, analyzing whether the second channel is in the information transmission process state, and determining whether the second channel is affected by the first channel, to obtain a channel delay of J, a signal strength of H, and a signal interference rate between adjacent channels of k;
according to the formula:
wherein: l refers to the ability to evaluate the transmission of the second channel information,
respectively representing influence factors of channel time delay, signal strength and signal interference;
if the larger the capability value of the second channel information transmission is detected to be, the second channel information transmission is not influenced by the interference of the first channel, and the second channel starts to transmit an alarm signal; if the smaller the capability value of the second channel information transmission is detected to be, the smaller the capability value of the second channel information transmission is, the influence of the first channel on the second channel information transmission is indicated;
wherein: the channel time delay refers to the time delay of a signal in the transmission process, specifically, after the water tank sends an alarm signal, the projection end does not display the alarm signal within a preset time, and the factor is taken as an important factor for judging the transmission capability of the channel;
the signal strength represents the strength of the current signal when the signal is transmitted; signal strength is the determining factor;
the signal interference means that whether a signal interferes with the signal is judged when the signal is sent, so that the sent alarm signal generates a distortion phenomenon;
the reason that the first channel cannot send the alarm signal in time and the second channel is used for sending information is changed, and whether the second channel is influenced by the first channel when sending the alarm signal is analyzed.
The embodiment is as follows: acquiring the water level capacity of a first reservoir as B =100
And at least two water guns connected with the first water tank and used for detecting the water speed of the water gunsV=10
;
If the fire source can be eliminated by detecting the residual water level in the first water tank, controlling the fire source according to the water using speed of the current water gun, and publishing and displaying the using time t = b/v =10min of the residual water amount in the reservoir on a projection;
if the fire source cannot be extinguished by detecting the water level in the first water tank, the fire hydrant is positioned to the position W = (x, y) = (60, 100) of the fire hydrant closest to the fire truck, and the water amount in the water tank corresponding to the fire hydrant is sufficient, the position of the fire truck in the two-dimensional space is obtained to be M = (a, b) = (150, 350), and C =10M/s is detected, and s =30s is according to the formula:
S=30>26.5s；
the water outlet rate of the water gun does not need to be replaced, and the water outlet rate of the current water gun can still be used is equal to V =10
。
It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described above, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a fire-fighting water level monitoring system which characterized in that: the system comprises an information acquisition module, an information display module, a monitoring alarm module and a main control module;
the information acquisition module acquires water level information in the fire engine body and a water tank connected with the fire engine through a fire hydrant;
the information display module acquires water level information in the water tank and projects the water level information in the water tank onto the fire fighting truck, so that the fire fighting truck is convenient to monitor in time;
the monitoring alarm module sends alarm information to the main control module and reasonably controls the water outlet speed of the water gun according to the alarm information;
the main control module is used for receiving alarm information;
the main control module is connected with the information acquisition module, the information display module and the monitoring alarm module;
analyzing whether the residual water level in the first water tank can extinguish the fire source or not, and if detecting that the residual water level in the first water tank can extinguish the fire source, extinguishing the fire according to the current water outlet speed of the water gun; if detecting that the residual water level in the first water tank can not extinguish the fire source, controlling the water outlet speed of the water gun until finding a second water tank;
acquiring a water level capacity of a first reservoir B and at least two water guns connected with the first water tank, detecting that the water speed of the water guns is V, if detecting that the residual water level in the first water tank can eliminate a fire source, controlling the fire source according to the current water speed of the water guns, and publishing and displaying the using time t = B/V of the residual water amount in the reservoir on a projection;
if detecting that the residual water level in the first water tank can not extinguish the fire source, positioning to a fire hydrant position W = (x, y) closest to the fire engine, wherein the water amount in the water tank corresponding to the fire hydrant is sufficient, and acquiring that the position of the fire engine in a two-dimensional space is M = (a, b), according to a formula:
if it is detected
When the water outlet speed of the water gun needs to be changed, a second water tank needs to be searched, and the water outlet speed of the water gun is smaller than V;
if it is detected
When the water is discharged, the water discharge speed of the water gun does not need to be changed, and is equal to V;
wherein, N is the distance between the fire engine and the fire hydrant, C is the fastest speed between the fire engine and the fire hydrant when the fire fighter walks, S is the time that the residual water level in the first water tank can supply water, (x, y) is the position coordinate of the fire hydrant, and (a, b) is the position coordinate of the fire engine.
2. A fire service water level monitoring system as recited in claim 1, wherein: the information acquisition module comprises a fire fighting truck positioning unit, a plane display unit, a water level state display unit, a fire fighting lance speed display unit and a data storage unit;
the fire engine positioning unit is used for carrying out GPS positioning on the fire engine and the fire hydrant;
the plane display unit is used for establishing a two-dimensional plane and displaying the positions of the fire truck and the fire hydrant on the two-dimensional plane;
the water level state display unit is used for monitoring water level information in the fire fighting truck and the water tank;
the fire-fighting lance speed display unit is used for acquiring the water outlet speed information of the fire-fighting lance;
the data storage unit is used for storing information;
the data storage unit is connected with the fire fighting truck positioning unit, the plane display unit, the water level state display unit and the fire fighting lance speed display unit.
3. A fire service water level monitoring system as recited in claim 1, wherein: the information display module comprises a two-dimensional model establishing unit, a virtual projection establishing unit and a monitoring alarm sending unit;
the two-dimensional model building unit is used for building a two-dimensional plane model on the fire fighting truck, setting x y rectangles and displaying the two-dimensional model on the fire fighting truck;
the virtual projection establishing unit is used for virtually projecting a water tank connected with a fire hydrant and projecting the water tank into the two-dimensional model;
and the monitoring alarm sending unit sends alarm information to the monitoring alarm module if the height of the water level in the water tank is monitored to be smaller than a preset standard height, so as to remind a fireman of being alert of the residual fire-fighting water consumption.
4. A fire service water level monitoring system as recited in claim 1, wherein: the monitoring alarm module comprises an alarm signal receiving and displaying unit, a channel replacing unit, a channel state displaying unit and a water gun water outlet rate control unit;
the alarm signal receiving and displaying unit is used for receiving the water level alarm information, recording the receiving time of the alarm signal and storing the receiving time into the data storage unit;
the channel replacing unit is used for obtaining a water level alarm signal, and replacing the first channel into a second channel if the alarm signal is detected not to be fed back to the projection terminal within the preset time; the channel state display unit analyzes the state of the second channel when transmitting signals and detects whether the first channel affects the transmission information of the second channel;
the water outlet rate control unit analyzes whether the residual water in the first water tank can completely extinguish the fire according to the received alarm information; if the water quantity in the water tank can be supported to a fire extinguishing source, extinguishing fire according to the current water outlet speed of the water gun; if the water quantity in the water tank can not be supported to a fire extinguishing source, controlling the water outlet speed of the water gun;
and the water outlet rate control unit of the water gun is connected with the alarm signal receiving and displaying unit, the channel replacing unit and the channel state displaying unit.
5. A fire service water level monitoring system as recited in claim 1, wherein: the main control module comprises an information prompt unit and an information receiving unit;
the information prompting unit feeds back information to a fireman when monitoring that the water level in the water tank is lower than a threshold value;
and the information receiving unit receives the alarm information sent by the water tank and feeds the alarm information back to the projection end.
6. A fire-fighting water level monitoring method is characterized by comprising the following steps: the method comprises the following steps:
z01: acquiring position moving information of the fire fighting truck, water level information stored in the fire fighting truck and water level information in a water tank with a preset radius by taking the fire fighting truck as a circle center;
z02: monitoring whether a water source stored in the fire fighting truck can completely extinguish a fire; if the water source stored in the fire engine is not enough to completely extinguish the fire, a fire hydrant closest to the position of the fire engine is taken, and the fire hydrant is connected with the first water tank to extinguish the fire;
z03: establishing a two-dimensional plane model, and projecting water level information in the first water tank on the fire fighting truck to form a projection end; monitoring the height information of the water level in the first water tank, and if the height of the water level in the first water tank is monitored to be lower than a preset standard height, sending an alarm signal to the first water tank and transmitting the alarm signal to a projection end;
z04: recording the time period of sending the alarm signal by the first water tank, and monitoring the time period of receiving the alarm signal by the projection end; if the projection end does not receive the alarm signal within the preset time, changing the current first channel node into a second channel; analyzing whether the second channel is in the information transmission process state, and if the second channel is in the information transmission state, reserving a time node until the information transmission of the second channel is finished; if the second channel is in a non-information transmission state, the projection end receives alarm information and controls the water outlet rate of the water gun;
z05: analyzing whether the residual water level in the first water tank can extinguish the fire source or not, and if detecting that the residual water level in the first water tank can extinguish the fire source, extinguishing the fire according to the current water outlet speed of the water gun; if detecting that the residual water level in the first water tank can not extinguish the fire source, controlling the water outlet speed of the water gun until finding a second water tank;
in the step Z05, acquiring the water level capacity of a first reservoir B and at least two water guns connected with the first water tank, detecting that the water speed of the water guns is V, if the residual water level in the first water tank is detected to be capable of extinguishing the fire source, controlling the fire source according to the current water speed of the water guns, and publishing and displaying the using time t = B/V of the residual water amount in the reservoir on a projection;
if detecting that the residual water level in the first water tank can not extinguish the fire source, positioning to a fire hydrant position W = (x, y) closest to the fire engine, and the water amount in the water tank corresponding to the fire hydrant is sufficient, acquiring that the position of the fire engine in the two-dimensional space is M = (a, b), according to a formula:
if it is detected
When the water outlet speed of the water gun needs to be changed, a second water tank needs to be searched, and the water outlet speed of the water gun is smaller than V;
if it is detected
When the water speed is higher than the water speed, the water outlet speed is equal to V;
wherein N is the distance between the fire truck and the fire hydrant, C is the fastest speed for the firefighter to walk from the fire truck to the fire hydrant, S is the time for which the remaining water level in the first water tank can supply water, (x, y) is the position coordinate of the fire hydrant, and (a, b) is the position coordinate of the fire truck.
7. The fire service water level monitoring method according to claim 6, wherein: and judging whether the residual water level in the first water tank can extinguish the fire source, so that the firefighter can analyze the residual water level according to the field fire and feed the analyzed result back to the main control module.
8. A fire service water level monitoring method as recited in claim 6, wherein: in step Z04, whether the second channel is in the information transmission process state is analyzed, whether the second channel is affected by the first channel is determined, and the obtained channel delay is J, the signal strength is H, and the signal interference rate between adjacent channels is k;
according to the formula:
wherein: l refers to the ability to evaluate the transmission of the second channel information,
the method includes the steps that influence factors of channel time delay, signal strength and signal interference are respectively represented;
if the larger the capability value of the second channel information transmission is detected to be, the larger the capability value of the second channel information transmission is, the second channel information transmission is not influenced by the interference of the first channel, and the second channel starts to transmit an alarm signal; if the smaller the capability value of the second channel information transmission is detected, it indicates that the second channel information transmission is affected by the first channel.
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| CN111195408A (en) * | 2019-12-31 | 2020-05-26 | 浙江微天下信息科技股份有限公司 | Wisdom fire hydrant monitored control system |
| CN113577620A (en) * | 2021-06-04 | 2021-11-02 | 中国科学技术大学 | Multifunctional integrated fire extinguishing equipment integrating water mist, foam and dry powder fire extinguishing system |
| CN113628472A (en) * | 2021-10-08 | 2021-11-09 | 江苏梦想物联有限公司 | Community security control system and method based on Internet of things |
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| CN111195408A (en) * | 2019-12-31 | 2020-05-26 | 浙江微天下信息科技股份有限公司 | Wisdom fire hydrant monitored control system |
| CN113577620A (en) * | 2021-06-04 | 2021-11-02 | 中国科学技术大学 | Multifunctional integrated fire extinguishing equipment integrating water mist, foam and dry powder fire extinguishing system |
| CN113628472A (en) * | 2021-10-08 | 2021-11-09 | 江苏梦想物联有限公司 | Community security control system and method based on Internet of things |
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