Anti-aircraft gun fire extinguishing system based on ship deck fire fighting and its control method

Abstract

The present invention relates to the technical field of ship deck fire fighting, in particular to an anti-aircraft gun fire extinguishing system based on ship deck fire fighting and a control method thereof, comprising: obtaining temperature, flame range and fire grade data of a fire area, sending the obtained temperature, flame range and fire grade data to a control module, and simultaneously triggering an alarm signal; the control module calculates a target pressure and a target flow rate by a dynamic adjustment algorithm according to the obtained temperature, flame range and fire grade data, and simultaneously predicts the change of the fire at the next moment, and adjusts the target parameters in advance; in the present invention, by real-time acquisition of the temperature, flame range and fire grade of the fire area, and calculating the target pressure and the target flow rate by a dynamic adjustment algorithm, accurate adjustment of the fire extinguishing medium is achieved, the method can not only dynamically allocate resources according to different fire conditions, but also effectively avoid ineffective fire extinguishing or waste of resources due to insufficient pressure or excessive flow rate, thereby significantly improving the fire extinguishing efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of ship deck fire fighting, in particular to an anti-aircraft gun fire extinguishing system based on ship deck fire fighting and a control method thereof. Background Art

[0002] With the continuous expansion of modern ship scale and the increasing complexity of shipping tasks, the cargoes piled on the ship deck are of various types, with a high proportion of flammable goods, and the fire risk has increased significantly. Once a fire occurs, the fire is likely to spread rapidly, posing a major threat to the safety of the ship and the lives of personnel. Therefore, equipping with an efficient and reliable deck fire-fighting system is an important means to ensure the safety of the ship;

[0003] The existing ship deck anti-aircraft gun fire extinguishing system mainly delivers fire extinguishing medium to the anti-aircraft gun nozzle through a water pump group with fixed pressure and flow. However, the traditional system usually extinguishes fire based on fixed parameters and cannot dynamically adjust the injection pressure and flow according to the changes in the fire, resulting in low fire extinguishing efficiency and may even aggravate the spread of fire due to insufficient pressure or excessive flow. Therefore, in order to solve the above problems, an anti-aircraft gun fire extinguishing system based on ship deck fire fighting and a control method thereof are proposed. Summary of the invention

[0004] The purpose of the present invention is to provide an anti-aircraft gun fire extinguishing system based on ship deck fire fighting and a control method thereof, so as to solve the problem that the existing ship deck anti-aircraft gun fire extinguishing system mainly delivers fire extinguishing medium to the anti-aircraft gun nozzle through a water pump group with fixed pressure and flow. However, the traditional system usually extinguishes fire based on fixed parameters and cannot dynamically adjust the injection pressure and flow according to the changes in the fire, resulting in low fire extinguishing efficiency and may even aggravate the spread of fire due to insufficient pressure or excessive flow.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] The anti-aircraft gun fire extinguishing system based on ship deck fire fighting and the control method thereof include: obtaining the temperature T, flame range R and fire grade F data of the fire area, sending the obtained temperature T, flame range R and fire grade F data to the control module, and simultaneously triggering an alarm signal;

[0007] The control module calculates the target pressure and target flow rate using a dynamic adjustment algorithm based on the acquired temperature T, flame range R and fire level F data, and predicts the fire intensity changes at the next moment to adjust the target parameters in advance;

[0008] The target pressure is calculated as:

[0009] P target =P 0 +αT+βR

[0010] Where P targetis the target pressure, P 0 is the initial pressure of the system, α and β are the adjustment coefficients for temperature and flame range respectively;

[0011] The target flow rate is calculated as:

[0012] Q target =Q 0 ×(1+γF)

[0013] In the formula, Q target is the target flow, Q 0 is the initial flow of the system, γ is the influence coefficient of flow adjustment corresponding to the fire level;

[0014] The prediction formula for fire change is:

[0015] F pred(t) =F(t-1)+δT(t-1)+ζR(t-1)

[0016] In the formula, F pred(t) is the fire severity level predicted at the next moment, δ and ζ are the fire severity adjustment coefficients of temperature and flame range respectively;

[0017] Get the actual pressure P in the pipeline real and the actual flow rate Q real The actual pressure P in the pipeline is obtained. real and the actual flow rate Q real The data is fed back to the control module, which calculates the pressure regulation signal uP and the flow regulation signal uQ based on the error feedback;

[0018] The pump unit adjusts the operating state of the variable frequency water pump according to the calculated pressure adjustment signal uP and flow adjustment signal uQ, and dynamically outputs the fire extinguishing medium that meets the target pressure and flow. The anti-aircraft fire extinguishing system performs the spraying operation and sprays the adjusted fire extinguishing medium into the fire area.

[0019] During the fire extinguishing process, the actual pressure P in the pipeline is continuously obtained. real and the actual flow rate Q real Real-time data to form closed-loop control;

[0020] If the spread of fire causes changes in temperature T, flame range R and fire level F, the system will immediately recalculate the target parameters and calculate the pressure regulation signal uP and flow regulation signal uQ through a closed loop to adjust the pressure and flow in real time;

[0021] The control module predicts the fire intensity based on time series data and dynamically optimizes the target pressure and flow parameters;

[0022] After the fire is extinguished, the control module shuts down the pump unit and the anti-aircraft fire extinguishing system, records the fire data, and optimizes the coefficients in the pressure and flow adjustment algorithm through the recorded fire data.

[0023] As a further optimized content of the present invention, the calculation formula of the pressure adjustment signal uP is:

[0024]

[0025] The calculation formula of the flow regulation signal uQ is:

[0026]

[0027] Where Ep is the error between the target pressure and the actual pressure, E Q is the error between the target flow and the actual flow, kp, k I , kD are the proportional, integral, and differential control gain parameters respectively.

[0028] As a further optimized content of the present invention, the fire monitoring module also includes an image processing unit, which recognizes flame characteristics in real time through video monitoring and assists in judging the fire level F.

[0029] As a further optimization of the present invention, the system includes a redundant control mechanism. When any sensor or actuator fails, the control module switches to a backup sensor or backup pump unit to ensure the continuous operation of the system.

[0030] As a further optimization of the present invention, the pump unit is equipped with a dual redundant sensor for pressure and flow, which is used to increase the actual pressure P in the closed-loop control. real and the actual flow rate Q real The accuracy of data collection.

[0031] As a further optimization of the present invention, the spray module of the antiaircraft fire extinguishing system is equipped with multi-angle nozzles, and the spray direction can be dynamically adjusted according to the target flame range R.

[0032] As a further optimization content of the present invention, after the fire is extinguished, the temperature, flow and pressure change curves during the fire handling process are recorded through the data recording module, and the data is transmitted to the cloud platform for optimizing the dynamic adjustment algorithm and subsequent system improvement.

[0033] As a further optimization of the present invention, external environmental parameters, including wind speed and humidity, are introduced into the fire intensity prediction formula to correct the prediction result of fire intensity change:

[0034] F pred(t)=F(t-1)+δT(t-1)+ζR(t-1)+ηW(t-1)+θH(t-1)

[0035] Where W is wind speed, H is humidity, and η and θ are corresponding adjustment coefficients.

[0036] As further optimized content of the present invention, it includes:

[0037] Fire monitoring module, used to monitor the temperature, flame range and fire level of the fire area in real time;

[0038] Pressure sensors and flow meters are used to monitor the pressure and flow in the pipeline in real time;

[0039] A control module, used for receiving the signal from the fire monitoring module, calculating the target pressure and target flow, and generating pressure and flow regulation signals;

[0040] A pump unit, used to dynamically adjust the output pressure and flow rate according to the regulation signal of the control module;

[0041] The anti-aircraft fire extinguishing system is used to spray the fire extinguishing medium into the fire area at the target pressure and flow rate;

[0042] Pipeline system for conveying fire extinguishing medium;

[0043] The control module adopts closed-loop feedback control and fire prediction algorithm to dynamically adjust the operating state of the pump unit to achieve precise control of pressure and flow.

[0044] Compared with the prior art, the present invention has the following beneficial effects:

[0045] 1. In the present invention, the temperature, flame range and fire level of the fire area are collected in real time, and the target pressure and target flow are calculated by a dynamic adjustment algorithm to achieve accurate adjustment of the fire extinguishing medium. This method can not only dynamically allocate resources according to different fire conditions, but also effectively avoid ineffective fire extinguishing or waste of resources due to insufficient pressure or excessive flow, thereby significantly improving the fire extinguishing efficiency;

[0046] 2. In the present invention, the fire prediction formula and closed-loop feedback control are used to perceive the changes in fire intensity in advance and optimize the dynamic adjustment strategy of pressure and flow. At the same time, the system is configured with a redundant control mechanism. When a sensor or actuator fails, it can automatically switch to the backup equipment to ensure the continuous operation of the system. These designs greatly improve the responsiveness and reliability of the system, and provide a safer and more efficient solution for ship deck fire fighting. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 It is a flow chart of an anti-aircraft gun fire extinguishing system based on ship deck fire fighting and a control method thereof of the present invention;

[0048] Figure 2 The system block diagram of the anti-aircraft gun fire extinguishing system based on ship deck fire fighting of the present invention. DETAILED DESCRIPTION

[0049] See also Figure 1-2 , the present invention provides a technical solution:

[0050] The anti-aircraft gun fire extinguishing system based on ship deck fire fighting and the control method thereof include:

[0051] Obtain the temperature T, flame range R and fire level F data of the fire area, send the obtained temperature T, flame range R and fire level F data to the control module, and trigger an alarm signal at the same time;

[0052] The control module calculates the target pressure and target flow rate using a dynamic adjustment algorithm based on the acquired temperature T, flame range R and fire level F data, and predicts the fire intensity changes at the next moment to adjust the target parameters in advance;

[0053] The target pressure is calculated as:

[0054] P target =P 0 +αT+βR

[0055] Where P target is the target pressure, P 0 is the initial pressure of the system, α and β are the adjustment coefficients for temperature and flame range respectively;

[0056] The target flow rate is calculated as:

[0057] Q target =Q 0 ×(1+γF)

[0058] In the formula, Q target is the target flow, Q 0 is the initial flow of the system, γ is the influence coefficient of flow adjustment corresponding to the fire level;

[0059] The prediction formula for fire change is:

[0060] F pred(t) =F(t-1)+δT(t-1)+ζR(t-1)

[0061] In the formula, F pred(t) is the fire severity level predicted at the next moment, δ and ζ are the fire severity adjustment coefficients of temperature and flame range respectively;

[0062] Get the actual pressure P in the pipeline real and the actual flow rate Q real The actual pressure P in the pipeline is obtained.real and the actual flow rate Q real The data is fed back to the control module, which calculates the pressure regulation signal uP and the flow regulation signal uQ based on the error feedback;

[0063] The pump unit adjusts the operating state of the variable frequency water pump according to the calculated pressure adjustment signal uP and flow adjustment signal uQ, and dynamically outputs the fire extinguishing medium that meets the target pressure and flow. The anti-aircraft fire extinguishing system performs the spraying operation and sprays the adjusted fire extinguishing medium into the fire area.

[0064] During the fire extinguishing process, the actual pressure P in the pipeline is continuously obtained. real and the actual flow rate Q real Real-time data to form closed-loop control;

[0065] If the spread of fire causes changes in temperature T, flame range R and fire level F, the system will immediately recalculate the target parameters and calculate the pressure regulation signal uP and flow regulation signal uQ through a closed loop to adjust the pressure and flow in real time;

[0066] The control module predicts the fire intensity based on time series data and dynamically optimizes the target pressure and flow parameters;

[0067] After the fire is extinguished, the control module shuts down the pump unit and the anti-aircraft fire extinguishing system, records the fire data, and optimizes the coefficients in the pressure and flow adjustment algorithm through the recorded fire data.

[0068] As a technical solution for further implementation of this scheme, the calculation formula of the pressure regulation signal uP is:

[0069]

[0070] The calculation formula of the flow regulation signal uQ is:

[0071]

[0072] Where Ep is the error between the target pressure and the actual pressure, E Q is the error between the target flow and the actual flow, kp, k I , kD are proportional, integral, and differential control gain parameters respectively. The pressure regulation signal uP and flow regulation signal uQ can be accurately calculated through the above formula;

[0073] As a technical solution for further implementation of this solution, the fire monitoring module also includes an image processing unit, which can identify flame characteristics in real time through video monitoring and assist in judging the fire level F, which can further improve the accuracy of judging the fire level F;

[0074] As a technical solution for further implementation of this scheme, the system includes a redundant control mechanism. When any sensor or actuator fails, the control module switches to the backup sensor or backup pump unit to ensure the continuous operation of the system, effectively improving the reliability and fault tolerance of the system and ensuring that the firefighting operation is not interrupted at the critical moment;

[0075] As a further technical solution for implementing this solution, the pump unit is equipped with dual redundant sensors for pressure and flow, which are used to increase the actual pressure P in closed-loop control. real and the actual flow rate Q real The data collection accuracy is improved through redundant design, which improves the accuracy of data collection and the system's ability to respond to sudden failures, and ensures the accuracy of the dynamic adjustment algorithm;

[0076] As a technical solution for further implementation of this scheme, the spray module of the antiaircraft fire extinguishing system is equipped with multi-angle nozzles, which can dynamically adjust the spray direction according to the target flame range R, effectively cover the flame target, and significantly improve the flexibility of the fire extinguishing system and the efficiency of fire handling;

[0077] As a technical solution for further implementation of this plan, after the fire is extinguished, the temperature, flow and pressure change curves during the fire handling process are recorded through the data recording module, and the data is transmitted to the cloud platform for optimization of dynamic adjustment algorithms and subsequent system improvements, which provides a scientific basis for subsequent algorithm optimization and equipment upgrades, and continuously improves system performance and adaptability;

[0078] As a technical solution for further implementation of this plan, external environmental parameters, including wind speed and humidity, are introduced into the fire prediction formula to correct the prediction results of fire changes:

[0079] F pred(t) =F(t-1)+δT(t-1)+ζR(t-1)+ηW(t-1)+θH(t-1)

[0080] In the formula, W is wind speed, H is humidity, η and θ are corresponding adjustment coefficients. By introducing environmental parameters, the accuracy of fire prediction is improved and the system's ability to cope with complex fire scenes is enhanced.

[0081] The technical solutions for further implementation of this plan include:

[0082] Fire monitoring module, used to monitor the temperature, flame range and fire level of the fire area in real time;

[0083] Pressure sensors and flow meters are used to monitor the pressure and flow in the pipeline in real time;

[0084] A control module, used for receiving the signal from the fire monitoring module, calculating the target pressure and target flow, and generating pressure and flow regulation signals;

[0085] A pump unit, used to dynamically adjust the output pressure and flow rate according to the regulation signal of the control module;

[0086] The anti-aircraft fire extinguishing system is used to spray the fire extinguishing medium into the fire area at the target pressure and flow rate;

[0087] Pipeline system for conveying fire extinguishing medium;

[0088] The control module uses closed-loop feedback control and fire prediction algorithm to dynamically adjust the operating status of the pump unit, achieve precise control of pressure and flow, and realize closed-loop integration of the entire process of fire perception, signal processing, and execution operation, effectively improving the coordinated efficiency and control accuracy of the fire extinguishing system.

[0089] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the methods and core ideas of the present invention. The above is only a preferred implementation of the present invention. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the present invention.

Claims

1. A control method for an anti-aircraft fire extinguishing system based on ship deck fire fighting, characterized in that: include: Obtain the temperature T, flame range R and fire level F data of the fire area, send the obtained temperature T, flame range R and fire level F data to the control module, and trigger an alarm signal at the same time; The control module calculates the target pressure and target flow rate using a dynamic adjustment algorithm based on the acquired temperature T, flame range R and fire level F data, and predicts the fire intensity changes at the next moment to adjust the target parameters in advance; The target pressure is calculated as: P target =P0+αT+βR Where P target is the target pressure, P0 is the initial pressure of the system, α and β are the adjustment coefficients of temperature and flame range respectively; The target flow rate is calculated as: Q target =Q0×(1+γF) In the formula, Q target is the target flow, Q0 is the initial flow of the system, and γ is the influence coefficient of flow adjustment corresponding to the fire level; The prediction formula for fire change is: F pred ( t) =F(t-1)+δT(t-1)+ζR(t-1) In the formula, F pred(t) is the fire severity level predicted at the next moment, δ and ζ are the fire severity adjustment coefficients of temperature and flame range respectively; Get the actual pressure P in the pipeline real and the actual flow rate Q real The actual pressure P in the pipeline is obtained. real and the actual flow rate Q real The data is fed back to the control module, which calculates the pressure regulation signal uP and the flow regulation signal uQ based on the error feedback; The pump unit adjusts the operating state of the variable frequency water pump according to the calculated pressure adjustment signal uP and flow adjustment signal uQ, and dynamically outputs the fire extinguishing medium that meets the target pressure and flow. The anti-aircraft fire extinguishing system performs the spraying operation and sprays the adjusted fire extinguishing medium into the fire area. During the fire extinguishing process, the actual pressure P in the pipeline is continuously obtained. real and the actual flow rate Q real Real-time data to form closed-loop control; If the spread of fire causes changes in temperature T, flame range R and fire level F, the system will immediately recalculate the target parameters and calculate the pressure regulation signal uP and flow regulation signal uQ through a closed loop to adjust the pressure and flow in real time; The control module predicts the fire intensity based on time series data and dynamically optimizes the target pressure and flow parameters; After the fire is extinguished, the control module shuts down the pump unit and the anti-aircraft fire extinguishing system, records the fire data, and optimizes the coefficients in the pressure and flow adjustment algorithm through the recorded fire data.

2. The control method of the anti-aircraft gun fire extinguishing system based on ship deck fire fighting according to claim 1 is characterized in that: The calculation formula of the pressure regulation signal uP is: The calculation formula of the flow regulation signal uQ is: Where Ep is the error between the target pressure and the actual pressure, E Q is the error between the target flow and the actual flow, kp, k I , kD are the proportional, integral, and differential control gain parameters respectively.

3. The control method of the anti-aircraft gun fire extinguishing system based on ship deck fire fighting according to claim 1 is characterized in that: The fire monitoring module also includes an image processing unit, which identifies flame characteristics in real time through video monitoring and assists in determining the fire level F.

4. The anti-aircraft gun fire extinguishing system based on ship deck fire fighting and the control method thereof according to claim 1 is characterized in that: The system includes a redundant control mechanism. When any sensor or actuator fails, the control module switches to a backup sensor or backup pump unit to ensure continuous operation of the system.

5. The control method of the anti-aircraft gun fire extinguishing system based on ship deck fire fighting according to claim 1 is characterized in that: The pump unit is equipped with dual redundant sensors for pressure and flow, which are used to increase the actual pressure P in closed-loop control. real and the actual flow rate Q real The accuracy of data collection.

6. The control method of the anti-aircraft gun fire extinguishing system based on ship deck fire fighting according to claim 1 is characterized in that: The spray module of the antiaircraft fire extinguishing system is equipped with multi-angle nozzles, and the spray direction can be dynamically adjusted according to the target flame range R.

7. The control method of the anti-aircraft fire extinguishing system based on ship deck fire fighting according to claim 1 is characterized in that: After the fire is extinguished, the temperature, flow and pressure change curves during the fire handling process are recorded through the data recording module, and the data is transmitted to the cloud platform for optimizing the dynamic adjustment algorithm and subsequent system improvements.

8. The control method of the anti-aircraft gun fire extinguishing system based on ship deck fire fighting according to claim 1 is characterized in that: External environmental parameters, including wind speed and humidity, are introduced into the fire intensity prediction formula to correct the prediction results of fire intensity changes: F pred ( t) =F(t-1)+δT(t-1)+ζR(t-1)+ηW(t-1)+θH(t-1) Where W is wind speed, H is humidity, and η and θ are corresponding adjustment coefficients.

9. The anti-aircraft gun fire extinguishing system based on ship deck fire fighting according to any one of claims 1 to 8, characterized in that: include: Fire monitoring module, used to monitor the temperature, flame range and fire level of the fire area in real time; Pressure sensors and flow meters are used to monitor the pressure and flow in the pipeline in real time; A control module, used for receiving the signal from the fire monitoring module, calculating the target pressure and target flow, and generating pressure and flow regulation signals; A pump unit, used to dynamically adjust the output pressure and flow rate according to the regulation signal of the control module; The anti-aircraft fire extinguishing system is used to spray the fire extinguishing medium into the fire area at the target pressure and flow rate; Pipeline system for conveying fire extinguishing medium; The control module adopts closed-loop feedback control and fire prediction algorithm to dynamically adjust the operating state of the pump unit to achieve precise control of pressure and flow.

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