A fire emergency water supply control system and method thereof

Abstract

The present invention discloses a fire emergency water supply control system and method thereof, which relates to the field of fire technology, including a distributed control network for establishing communication connections with multiple fire detection devices and multiple water supply devices, receiving and processing fire-related parameters from various fire detection devices, and controlling the operation of water supply devices; multiple fire detection devices for continuously collecting fire-related parameters; multiple water supply devices, including fire valves and fire pumps; a backup power supply module for powering the system when the main power fails; a remote monitoring and control module for exchanging data with a fire command center and receiving control instructions. The present invention realizes accurate judgment and real-time tracking of fire conditions through multi-source information fusion and dynamic analysis, greatly improving the accuracy and timeliness of system response.

Description

Technical Field

[0001] The present invention relates to the technical field of fire fighting, in particular to a fire fighting emergency water supply control system and a method thereof. Background Art

[0002] Traditional fire water supply systems usually adopt fixed water supply schemes, which are difficult to flexibly adjust according to the specific circumstances of the fire. This system often fails to allocate water resources in a timely and effective manner when faced with complex and changing fire scenes. For example, in a high-rise building fire, the fixed water supply pressure may lead to excessive water pressure on the lower floors and insufficient water pressure on the higher floors. At the same time, the traditional system's judgment of fire mainly relies on a single detection device, such as smoke detectors or temperature detectors, which is prone to false alarms or missed alarms, affecting rescue efficiency.

[0003] In recent years, with the development of Internet of Things technology, some intelligent fire water supply systems have begun to emerge. Although these systems can monitor fire conditions in real time, they still have deficiencies in the formulation and implementation of water supply strategies. For example, although some systems can adjust the water supply pressure, they fail to fully consider factors such as fire development trends, building structural characteristics, and available water resources, resulting in low water supply efficiency. Summary of the invention

[0004] In view of the fact that the existing fire water supply system lacks accurate judgment and dynamic adjustment capabilities when facing complex and changeable fire scenes, as well as deficiencies in the formulation and implementation of water supply strategies, the present invention is proposed.

[0005] Therefore, the problem to be solved by the present invention is how to achieve accurate fire judgment based on multi-source information, and dynamically optimize the water supply strategy accordingly, so as to realize intelligent control and reliable operation of the fire water supply system. To solve the above technical problems, the present invention provides the following technical solutions:

[0006] In the first aspect, an embodiment of the present invention provides a fire emergency water supply control system, which includes a distributed control network for establishing a communication connection with multiple fire detection devices and multiple water supply devices, receiving and processing fire-related parameters from various fire detection devices, and controlling the operation of water supply devices; multiple fire detection devices for continuously collecting fire-related parameters; multiple water supply devices, including fire valves and fire pumps; a backup power supply module for powering the system when the main power supply fails; a remote monitoring and control module for exchanging data with a fire command center and receiving control instructions; wherein the distributed control network is also used for: when the fire-related parameters meet the preset fire judgment conditions, the distributed control network determines the fire location and fire level based on the fire-related parameters, obtains the currently available water supply resource information, and calculates the fire location, fire level and available water supply resource information according to the fire location, fire level and available water supply resource information. The target water supply volume and target water supply pressure are calculated, and the optimal water supply path is determined based on the topological structure information of the water supply network; the distributed control network controls the relevant water supply equipment according to the optimal water supply path, opens the fire valves in a predetermined sequence, starts and adjusts the fire pumps, and gradually adjusts the actual water supply pressure and flow until the target water supply pressure and target water supply volume are reached; the distributed control network continuously monitors the water supply network status parameters and fire-related parameters. When an abnormal condition of the water supply system is detected, the corresponding preset emergency strategy is executed according to the type of abnormal condition detected, the effect of the emergency measures is monitored and dynamically adjusted; at the same time, an alarm signal is triggered and a notification is sent; when the fire-related parameters continuously meet the preset fire termination conditions and the duration reaches the set threshold, the distributed control network gradually reduces the water supply pressure according to the preset procedure, stops the relevant water supply equipment in a predetermined order, executes the system self-check procedure, and generates a water supply event report.

[0007] As a preferred solution of the fire emergency water supply control system described in the present invention, wherein: the fire detection equipment includes a fire alarm button, an image recognition system and various environmental parameter sensors; the fire-related parameters include the fire alarm button status, the image recognition system detection results, and environmental parameter data, and the environmental parameter data include smoke concentration, temperature, carbon monoxide concentration, infrared radiation intensity and ultraviolet radiation intensity; the preset fire judgment conditions include one or more of the following: any fire alarm button is activated; the image recognition system detects open flames or thick smoke; the smoke concentration exceeds the first preset threshold; the temperature rise rate exceeds the second preset threshold; the carbon monoxide concentration exceeds the third preset threshold; the infrared radiation intensity exceeds the fourth preset threshold; the ultraviolet radiation intensity exceeds the fifth preset threshold.

[0008] As a preferred solution of the fire emergency water supply control system described in the present invention, wherein: determining the fire location and fire level based on fire-related parameters includes the following steps: receiving and processing fire-related parameters from multiple fire detection devices; determining the fire location, specifically as follows: when an activation signal of a fire alarm button is received, determining the installation location of the fire alarm button as the initial fire location; when the image recognition system detects an open flame or thick smoke, determining the camera coverage area where the abnormality is detected as the initial fire location; when the environmental parameter data is abnormal, determining the installation location of the abnormal parameter sensor as the initial fire location; comprehensively analyzing the location information of multiple abnormal signal sources, and determining the final fire location through a preset position interpolation algorithm; determining the fire level, specifically as follows :Count the number of parameters that meet the preset fire judgment conditions; perform weighted calculation on the various parameters that meet the preset fire judgment conditions to obtain an initial fire level score; dynamically adjust the initial fire level score according to the rate of change of fire-related parameters; compare the adjusted fire level score with the preset level classification standard to determine the final fire level; receive and process updated data of fire-related parameters in real time, and periodically repeat the steps of determining the fire location and fire level based on the updated data; trigger the recalculation and optimization of the water supply strategy when any water supply strategy recalculation condition is met; the water supply strategy recalculation conditions include the coordinate change of the fire location exceeding the preset distance threshold, the fire level change exceeding the preset level change threshold, and the change rate of the fire-related parameters exceeding the preset rate threshold.

[0009] As a preferred solution of the fire emergency water supply control system of the present invention, the calculation of the target water supply volume and the target water supply pressure includes the following steps: based on the location of the fire, determining the distance from the fire point to the nearest water supply point ;According to the fire level, obtain the basic water supply from the preset fire level-basic water supply demand correspondence table and basic water supply pressure ; Calculate target water supply , the specific formula is as follows: ,

[0010] in, is the distance influence coefficient, is the available water supply resource adjustment coefficient, is the basic water supply, and D is the distance from the fire point to the nearest water supply point.

[0011] Calculate the target water supply pressure P, the specific formula is as follows: ,in, is the density of water, g is the acceleration of gravity, H is the height difference from the water supply point to the fire point, k is the pipe network resistance coefficient, is the basic water supply pressure, The target water supply volume. According to the available water supply resource information, determine the distance influence coefficient and the available water supply resource adjustment coefficient .

[0012] When the target water supply is calculated When the target water supply pressure P exceeds the system capacity, make the following adjustments: If the maximum water supply is exceeded, Set it as the maximum water supply of the system and adjust P accordingly; if P exceeds the maximum water supply pressure, set P to the maximum water supply pressure of the system and adjust it accordingly ; The calculated and P as the target water supply volume and target water supply pressure.

[0013] As a preferred solution of the fire emergency water supply control system described in the present invention, the optimal water supply path is determined based on the water supply network topology information, including the following steps: extracting network node information and pipe section information from the pre-stored water supply network topology information; preliminarily screening the nearest N available water supply points based on the location of the fire; for each available water supply point, using the improved Dijkstra algorithm to calculate all possible paths from the water supply point to the fire point, and scoring each possible path; selecting the optimal path for each water supply point based on the score; comparing the optimal paths of all water supply points, and selecting the path with the highest comprehensive score as a candidate optimal water supply path; check whether the candidate optimal water supply path meets the requirements of target water supply volume and target water supply pressure: if it meets the requirements, confirm that the path is the optimal water supply path finally selected; if it does not meet the requirements, select the suboptimal path and repeat the path verification process until the optimal water supply path that meets the requirements is found or all possible paths are traversed; if a single path cannot meet the requirements, consider a multi-path water supply solution and select the combination of multiple paths with the highest score; calculate the total water supply volume and terminal water supply pressure of the multi-path combination, and if the multi-path water supply solution meets the requirements, confirm it as the optimal water supply path; save the optimal water supply path.

[0014] As a preferred solution of the fire emergency water supply control system of the present invention, wherein: gradually adjusting the actual water supply pressure and flow until the target water supply pressure and target water supply volume are reached includes the following steps: the distributed control network receives the optimal water supply path; according to the determined optimal water supply path, generates a water supply equipment control instruction sequence; executes water supply equipment control through the distributed control network: sends an opening instruction to the relevant fire valve, Receive and confirm the opening status feedback of the fire valve, send a start-up instruction to the designated fire water pump, receive and confirm the start-up status feedback of the fire water pump; start the real-time monitoring system to collect the actual water supply pressure and flow data in the pipe network; execute the closed-loop control process: compare the collected actual water supply pressure and flow data with the target water supply pressure and target water supply, and calculate the adjustment parameters according to the comparison results; send an adjustment instruction to the fire water pump to adjust the pump speed or water outlet pressure, and after waiting for a preset time interval, re-execute the closed-loop control process until the termination condition is met; set a termination condition judgment mechanism, including the actual water supply pressure and flow reaching the target water supply requirements, or the number of adjustments reaching the preset maximum value; if the target water supply requirements are met, record and maintain the current control parameters; if the target water supply requirements are not met and the number of adjustments reaches the preset maximum value, trigger the exception handling process.

[0015] As a preferred solution of the fire emergency water supply control system described in the present invention, the following steps are included in the execution of the corresponding preset emergency strategy according to the detected abnormal condition type: if the system detects that the water supply pressure or flow deviates from the target value, the fire pump output parameters are automatically adjusted, and the pump speed is increased or decreased by frequency conversion technology. If the adjustment of a single pump cannot meet the requirements, the backup fire pump is started, and the real-time optimization algorithm is used to calculate and implement the multi-point water supply pressure distribution plan; if the system detects that the pressure or flow shows a continuous downward trend for N consecutive sampling data, or the pressure of any key node drops below the preset multiple of the minimum allowable working pressure, the backup water supply path is automatically enabled. , adjust the multi-pump parallel operation plan, recalculate the optimal water supply path and execute it; if the system detects that the water level of the fire water tank drops below the preset warning line, or the available water supply resource ratio is lower than the preset resource threshold, it will activate the backup water source, implement zoning flow limiting measures, give priority to ensuring water supply to key areas, and send additional water source support requests to the superior fire command center; if the system detects equipment failure, it will automatically switch to the backup equipment, and at the same time start the equipment rapid maintenance plan, adjust the water supply network topology, and bypass the faulty equipment through bypass technology; if the system identifies that the pipeline network is damaged, it will automatically close the valve of the pipe section that may have a fault, activate the backup pipeline loop, and dispatch mobile emergency equipment to the affected area.

[0016] In a second aspect, an embodiment of the present invention provides a fire emergency water supply control method, which includes starting a distributed control network, establishing a communication connection between the distributed control network and multiple fire detection devices and multiple water supply devices; using multiple fire detection devices to continuously collect fire-related parameters; when the fire-related parameters meet the preset fire judgment conditions, the distributed control network determines the fire location and fire level based on the fire-related parameters, obtains the current available water supply resource information, calculates the target water supply volume and target water supply pressure according to the fire location, fire level and available water supply resource information, and determines the optimal water supply path based on the pre-stored water supply network topology structure information; the distributed control network determines the optimal water supply path according to the optimal water supply path , control the relevant water supply equipment, open the fire valves in a predetermined sequence, start and adjust the fire pumps, and gradually adjust the actual water supply pressure and flow until the target water supply pressure and target water supply volume are reached; the distributed control network continuously monitors the water supply network status parameters and fire-related parameters. When an abnormal condition is detected, the fire pump output parameters are adjusted or the backup water supply path is enabled according to the preset emergency strategy, and the multi-point water supply pressure distribution plan is calculated and optimized in real time; when the fire-related parameters continuously meet the preset fire termination conditions and the duration reaches the set threshold, the distributed control network gradually reduces the water supply pressure according to the preset procedure, stops the relevant water supply equipment in a predetermined order, executes the system self-check procedure, and generates a water supply event report.

[0017] The beneficial effects of the present invention are as follows: Through multi-source information fusion and dynamic analysis, the present invention realizes accurate judgment and real-time tracking of fire conditions, greatly improving the accuracy and timeliness of system response. Based on multiple factors such as fire location, level and available water resources, the optimal water supply strategy is dynamically calculated, which significantly improves water supply efficiency and resource utilization. The use of improved path optimization algorithms and closed-loop control mechanisms ensures accurate control of water supply pressure and flow, effectively solving problems such as unbalanced water supply in high-rise buildings. The introduction of multi-level anomaly detection and emergency handling mechanisms greatly enhances the reliability and fault self-healing capabilities of the system, effectively reducing the risks of equipment failures and pipe network damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 This is the framework connection diagram of the fire emergency water supply control system.

[0020] Figure 2 This is a flow chart of fire location and fire level for the fire emergency water supply control system.

[0021] Figure 3 This is the optimal path flow chart for the fire emergency water supply control system. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0025] Example 1, reference Figure 1~Figure 3 , which is the first embodiment of the present invention, provides a fire emergency water supply control system, including:

[0026] Figure 1 This is a framework connection diagram of a fire emergency water supply control system, as follows:

[0027] Distributed control network, used to establish communication connection with multiple fire detection equipment and multiple water supply equipment,

[0028] Receive and process fire-related parameters from various fire detection equipment, and control the operation of water supply equipment.

[0029] Multiple fire detection devices for continuous collection of fire-related parameters.

[0030] Multiple water supply equipment, including fire valves and fire pumps.

[0031] Backup power supply module, used to supply power to the system when the main power fails.

[0032] Remote monitoring and control module, used to exchange data with the fire command center and receive control instructions.

[0033] It should be noted that the fire detection equipment includes a fire alarm button, an image recognition system, and various environmental parameter sensors; the fire-related parameters include the fire alarm button status, the image recognition system detection results, and the environmental parameter data, wherein the environmental parameter data include smoke density, temperature, carbon monoxide concentration, infrared radiation intensity, and ultraviolet radiation intensity; the preset fire judgment conditions include one or more of the following: any fire alarm button is activated; the image recognition system detects open flames or thick smoke; the smoke density exceeds the first preset threshold; the temperature rise rate exceeds the second preset threshold; the carbon monoxide concentration exceeds the third preset threshold; the infrared radiation intensity exceeds the fourth preset threshold; the ultraviolet radiation intensity exceeds the fifth preset threshold; when any of the preset fire judgment conditions is met, the fire alarm is triggered and the fire response process is executed. Among them, the first preset threshold, the second preset threshold, the third preset threshold, the fourth preset threshold, and the fifth preset threshold refer to the smoke density threshold, the temperature rise rate threshold, the carbon monoxide concentration threshold, the infrared radiation intensity threshold, and the ultraviolet radiation intensity threshold, respectively.

[0034] Furthermore, when the fire-related parameters simultaneously meet at least two preset fire judgment conditions and the duration exceeds the preset time threshold, the distributed control network determines the fire location and fire level based on the fire-related parameters, obtains the currently available water supply resource information, calculates the target water supply volume and target water supply pressure according to the fire location, fire level and available water supply resource information, and determines the optimal water supply path based on the water supply network topology information.

[0035] Specifically, the flow chart for determining the location and level of a fire based on fire-related parameters is as follows: Figure 2As shown, the following steps are included: receiving and processing fire-related parameters from multiple fire detection devices; determining the location of the fire: if only a single preset fire judgment condition is met: when an activation signal of a fire alarm button is received, the installation location of the fire alarm button is determined as the initial fire location; when the image recognition system detects an open flame or thick smoke, the camera coverage area where the abnormality is detected is determined as the initial fire location; when the environmental parameter data is abnormal, the installation location of the abnormal parameter sensor is determined as the initial fire location; if multiple preset fire judgment conditions are met, the location information of multiple abnormal signal sources is comprehensively analyzed, and the initial fire location is determined by the preset Position interpolation algorithm to determine the final location of the fire; determine the fire level: count the number of parameters that meet the preset fire judgment conditions; perform weighted calculations on the various parameters that meet the preset fire judgment conditions to obtain an initial fire level score; dynamically adjust the initial fire level score based on the rate of change of fire-related parameters; compare the adjusted fire level score with the preset level classification standard to determine the final fire level; receive and process updated data of fire-related parameters in real time, and dynamically adjust the fire location and fire level based on the updated data; trigger recalculation and optimization of the water supply strategy when any water supply strategy recalculation condition is met.

[0036] It should be noted that the water supply strategy recalculation conditions include the coordinate change of the fire location exceeding the preset distance threshold, the fire level change exceeding the preset level change threshold, and the change rate of the fire-related parameters exceeding the preset rate threshold. The abnormal signal source refers to the multiple initial fire locations determined.

[0037] Furthermore, the calculation of the target water supply volume and the target water supply pressure includes the following steps: based on the location of the fire, determining the distance D from the fire point to the nearest water supply point; according to the fire level, obtaining the basic water supply volume from the preset fire level-basic water supply demand correspondence table; and basic water supply pressure ; Calculate target water supply , the specific formula is as follows: ,

[0038] in, is the distance influence coefficient, is the available water supply resource adjustment coefficient, is the basic water supply, and D is the distance from the fire point to the nearest water supply point.

[0039] Furthermore, the target water supply pressure P is calculated, and the specific formula is as follows: ,

[0040] in, is the density of water, g is the acceleration of gravity, H is the height difference from the water supply point to the fire point, k is the pipe network resistance coefficient, is the basic water supply pressure, Target water supply.

[0041] Furthermore, the distance influence coefficient is determined based on the available water supply resource information. and the available water supply resource adjustment coefficient , including the following steps: Calculate the available water supply ratio

[0042] , where G is the current available water supply, G max is the maximum water supply of the system; When the available water supply is sufficient, and Take the maximum value,

[0043] ;when When the available water supply is considered to be seriously insufficient, and Take the minimum value: ;

[0044] when When , the following formula is used to calculate and , , ,

[0045] in, are the preset system parameters, satisfying: , .

[0046] Furthermore, when the calculated When and P exceed the system capability, make the following adjustments: If the maximum water supply is exceeded, Set it as the maximum water supply of the system and adjust P accordingly; if P exceeds the maximum water supply pressure, set P to the maximum water supply pressure of the system and adjust it accordingly ; The calculated and P are used as the target water supply volume and target water supply pressure for subsequent water supply control.

[0047] Furthermore, the flowchart of determining the optimal water supply path based on the water supply network topology information is as follows: Figure 3As shown, the following steps are included: extracting the network node information and pipe segment information from the pre-stored water supply network topology information, wherein the node information includes the location coordinates and type of each node (such as water supply point, transfer point, water use point), and the pipe segment information includes the connection node, pipe diameter, pipe length, pipe material and maximum allowable flow rate; Based on the location of the fire, the nearest N available water supply points are preliminarily screened; for each available water supply point, the improved Dijkstra algorithm is used to calculate all possible paths from the water supply point to the fire point, and each possible path is scored. The scoring factors include the total length of the path, the total pressure loss on the path (calculated based on the pipe diameter, pipe length and expected flow), the minimum pipe diameter on the path, and the number of turns on the path; the optimal path for each water supply point is selected based on the score; the optimal paths of all water supply points are compared, and the path with the highest comprehensive score is selected as the candidate optimal water supply path; check whether the candidate optimal water supply path meets the requirements of the target water supply volume and target water supply pressure: if the requirements are met, confirm that the path is the final selected optimal water supply path; if the requirements are not met, select the suboptimal path and repeat the path verification process until the optimal water supply path that meets the requirements is found or all possible paths are traversed; if a single path cannot meet the requirements, consider a multi-path water supply solution. Select the combination of multiple paths with the highest score; calculate the total water supply volume and the terminal water supply pressure of the multi-path combination. If the multi-path water supply scheme meets the requirements, it will be confirmed as the optimal water supply path; save the optimal water supply path and use it for subsequent water supply equipment control.

[0048] The distributed control network controls the relevant water supply equipment according to the optimal water supply path, opens the fire valves in a predetermined sequence, starts and adjusts the fire pumps, and gradually adjusts the actual water supply pressure and flow until the target water supply pressure and target water supply volume are reached.

[0049] Specifically, the distributed control network receives the optimal water supply path; generates a water supply equipment control instruction sequence according to the determined optimal water supply path; executes water supply equipment control through the distributed control network: sends an opening instruction to the relevant fire valve, receives and confirms the opening state feedback of the fire valve, sends a start instruction to the designated fire pump, receives and confirms the start state feedback of the fire pump; starts the real-time monitoring system to collect the actual water supply pressure and flow data in the pipe network; executes the closed-loop control process: compares the collected actual water supply pressure and flow data with the target water supply pressure and target water supply volume, and calculates the adjustment parameters according to the comparison results; sends an adjustment instruction to the fire pump to adjust the pump speed or water outlet pressure, and re-executes the closed-loop control process after waiting for a preset time interval until the termination condition is met; sets a termination condition judgment mechanism, including the actual water supply pressure and flow reaching the target water supply requirements (target water supply pressure and target water supply volume), or the number of adjustments reaches the preset maximum value; if the target water supply requirements are met, the current control parameters are recorded and maintained; if the target water supply requirements are not met and the number of adjustments reaches the preset maximum value, the exception handling process is triggered.

[0050] The distributed control network continuously monitors the status parameters of the water supply network and fire-related parameters. When an abnormal condition is detected in the water supply system, the corresponding preset emergency strategy is executed according to the type of abnormal condition detected, the effectiveness of the emergency measures is monitored and dynamically adjusted; at the same time, an alarm signal is triggered and a notification is sent.

[0051] It should be noted that abnormal conditions include: water supply pressure or flow rate deviates from the target value, specifically including the actual water supply pressure deviating from the target water supply pressure by more than the preset pressure deviation threshold; the actual water supply flow rate deviates from the target water supply by more than the preset flow deviation threshold; wherein the preset pressure deviation threshold is ±10%, and the preset flow deviation threshold is ±15%. Water supply parameters continue to deteriorate, specifically including N consecutive sampling data showing that the pressure or flow rate shows a continuous downward trend, where N is the preset sampling number threshold; the pressure at any key node drops below the preset multiple of the minimum allowable working pressure; wherein N is preferably 5, and the preset multiple is preferably 1.1. Insufficient water supply resources, specifically including the water level of the fire water tank dropping below the preset warning line; the ratio of available water supply resources is lower than the preset resource threshold; wherein the preset resource threshold is 30%. Equipment failure, specifically including the failure of the fire water pump or the performance degradation exceeding the preset performance degradation threshold, and the key fire valve cannot be opened or closed within the preset time. Pipeline network damage includes, for example, detection of a decrease in pipeline network pressure exceeding a preset pressure reduction threshold within a preset time, which indicates a suspected pipeline rupture; and flow meter display showing a flow exceeding a preset abnormal flow threshold, indicating a possible pipeline network leak.

[0052] Specifically, the following steps are included in the execution of corresponding operations according to the preset emergency strategy: If the system detects that the water supply pressure or flow deviates from the target value, the output parameters of the fire pump are automatically adjusted, and the speed of the water pump is increased or decreased through frequency conversion technology. If the adjustment of a single water pump cannot meet the requirements, the backup fire pump is started, and the real-time optimization algorithm is used to calculate and implement the multi-point water supply pressure distribution plan. If the system detects that the pressure or flow shows a continuous downward trend for N consecutive sampling data, or the pressure of any key node drops below the preset multiple of the minimum allowable working pressure, the backup water supply path is automatically enabled, the multi-pump parallel operation plan is adjusted, and the optimal water supply path is recalculated and executed. If the system detects that the water level of the fire pool drops below the preset warning line, or the ratio of available water supply resources is lower than the preset resource threshold, the backup water source (such as groundwater, fire truck, etc.) is activated, and the zoning flow limiting measures are implemented to give priority to ensuring water supply in key areas, and send additional water source support requests to the superior fire command center. If the system detects equipment failure, it will automatically switch to the backup equipment and start the equipment rapid maintenance plan, adjust the water supply network topology, and bypass the faulty equipment through bypass technology; if the system identifies that the pipeline network is damaged, it will automatically close the valves of the pipe section that may have a fault, activate the backup pipeline loop, and dispatch mobile emergency equipment (such as mobile water pumps) to the affected area.

[0053] When fire-related parameters continuously meet the preset fire termination conditions and the duration reaches the set threshold, the distributed control network gradually reduces the water supply pressure according to the preset procedure, stops the relevant water supply equipment in a predetermined order, executes the system self-check procedure, and generates a water supply event report.

[0054] It should be noted that the preset fire termination conditions include but are not limited to one or more of the following: the smoke concentration drops below the preset safety threshold; the ambient temperature drops to within the preset normal temperature range; the carbon monoxide concentration drops below the preset safety level; the infrared radiation intensity drops to the preset background level; the ultraviolet radiation intensity drops to the preset background level; the image recognition system fails to detect open flames or thick smoke for multiple consecutive times; all fire alarm buttons are in an inactive state.

[0055] Specifically, the judgment of the preset fire termination conditions also includes the following steps: real-time collection and analysis of fire-related parameters; comparing the collected parameters with the preset safety thresholds; recording the duration for which the parameters meet the safety conditions; when all monitored parameters continue to meet the safety conditions and the duration exceeds the preset time threshold, it is determined that the fire termination conditions are met.

[0056] Backup power supply module, used to supply power to the system when the main power fails.

[0057] Specifically, the main power supply status is continuously monitored. When a main power failure is detected, it automatically switches to the backup power supply within a preset very short time (usually less than 20 milliseconds), and performs self-inspection and maintenance regularly to ensure that it can work normally at any time. The backup power supply must have sufficient power supply capacity to support the operation of key equipment in the entire fire protection system for at least 2 hours, and must be integrated with the main system and be able to report its own status in real time, including remaining power, operating time, etc.

[0058] Remote monitoring and control module, used to exchange data with the fire command center and receive control instructions. Specifically, establish a secure encrypted communication link with the fire command center to ensure the security and reliability of data transmission. Upload system status data in real time, including fire detection data, water supply system status, equipment operating parameters, etc. Receive control instructions from the fire command center, such as manually triggering alarms, adjusting water supply strategies, starting specific equipment, etc. Provide a remote access interface to allow authorized personnel to view system status and operation history through a secure connection. Equipped with data caching and disconnection reconnection functions to ensure data integrity when communication is interrupted. Support video surveillance integration, and can transmit on-site video images to the command center.

[0059] Furthermore, the present embodiment also provides a fire emergency water supply control method, including starting a distributed control network, establishing a communication connection between the distributed control network and multiple fire detection devices and multiple water supply devices; using multiple fire detection devices to continuously collect fire-related parameters; when the fire-related parameters meet the preset fire judgment conditions, the distributed control network determines the fire location and fire level based on the fire-related parameters, obtains the current available water supply resource information, calculates the target water supply volume and target water supply pressure according to the fire location, fire level and available water supply resource information, and determines the optimal water supply path based on the pre-stored water supply network topology structure information; the distributed control network determines the optimal water supply path according to the optimal water supply path, Control relevant water supply equipment, open fire valves in a predetermined sequence, start and adjust fire pumps, and gradually adjust the actual water supply pressure and flow until the target water supply pressure and target water supply volume are reached; the distributed control network continuously monitors the water supply network status parameters and fire-related parameters. When an abnormal condition is detected, the fire pump output parameters are adjusted or the backup water supply path is enabled according to the preset emergency strategy, and the multi-point water supply pressure distribution plan is calculated and optimized in real time; when the fire-related parameters continuously meet the preset fire termination conditions and the duration reaches the set threshold, the distributed control network gradually reduces the water supply pressure according to the preset procedure, stops the relevant water supply equipment in a predetermined order, executes the system self-check procedure, and generates a water supply event report.

[0060] In summary, the present invention realizes accurate judgment and real-time tracking of fire conditions through multi-source information fusion and dynamic analysis, greatly improving the accuracy and timeliness of system response. Based on multiple factors such as fire location, level and available water resources, the optimal water supply strategy is dynamically calculated, which significantly improves water supply efficiency and resource utilization. The use of improved path optimization algorithm and closed-loop control mechanism ensures accurate control of water supply pressure and flow, and effectively solves problems such as unbalanced water supply in high-rise buildings. The introduction of multi-level anomaly detection and emergency handling mechanisms greatly enhances the reliability and fault self-healing capabilities of the system, and effectively reduces the risks of equipment failure and pipe network damage.

[0061] Example 2, reference Figure 1~Figure 3 , which is the second embodiment of the present invention, and this embodiment provides a fire emergency water supply control system. In order to verify the beneficial effects of the present invention, scientific demonstration is carried out through economic benefit calculation and simulation experiments.

[0062] The simulation experiment of the present invention simulated a fire scene in a 15-story office building. Experimental data showed that the distributed control network of the present invention quickly collected and processed key fire-related parameters at the early stage of the fire (T=0 minutes), including smoke concentration (75 ppm, exceeding the warning threshold of 50 ppm), ambient temperature (42°C, significantly higher than the normal range of 18-25°C), carbon monoxide concentration (60 ppm, exceeding the safety threshold of 50 ppm), infrared radiation intensity (1.8 kW / m², higher than the background level of 0.5 kW / m²) and ultraviolet radiation intensity (0.08 W / m², higher than the background level of 0.02 W / m²).

[0063] During the fire confirmation and initial response phase (T=1 minute), the system assessed the fire level as Level 2 (medium fire) based on the preset algorithm and accurately located the fire at the northeast corner of the 8th floor. Based on the fire location and level information, the system selected the optimal water supply point (the fire hydrant on the 7th floor) and calculated the initial target water supply (1200 L / min) and target water supply pressure (0.8MPa).

[0064] The water supply system startup process (T = 2-5 minutes) demonstrates the rapid response capability and precise control characteristics of the present invention. The system opens the fire valves on the 7th, 8th, and 9th floors in a predetermined sequence, starts the main fire pump, and increases the actual water supply from 1000 L / min to 1180 L / min within 3 minutes. The water supply pressure increases from 0.7 MPa to 0.79 MPa, quickly approaching the initial target value.

[0065] During the fire development stage (T=5-15 minutes), the present invention demonstrated its ability to dynamically adapt to changes in the fire situation. When the fire spread to the 9th floor (T=15 minutes), the system immediately re-evaluated the fire level to level 3 (large fire), adjusted the target water supply to 1800 L / min, increased the target water supply pressure to 0.9 MPa, and started the backup fire water pump to meet the increased demand.

[0066] The data from the fire control stage (T=15-30 minutes) verified the continuous regulation capability of the present invention. At T=20 minutes, the actual water supply reached 1750 L / min and the water supply pressure reached 0.88 MPa. Although the highest temperature on the 8th and 9th floors once rose to 82°C, it dropped to 65°C at T=30 minutes, indicating that the fire was effectively controlled.

[0067] During the fire extinguishing stage (T=30-60 minutes), the present invention exhibits intelligent regulation characteristics. When the monitoring parameters are close to the safe level, the system automatically adjusts the water supply to 1200 L / min. At T=60 minutes, all key parameters fall back to near normal levels: smoke concentration (40 ppm), temperature (32°C), carbon monoxide concentration (30 ppm), infrared radiation intensity (0.6kW / m²), and ultraviolet radiation intensity (0.03 W / m²).

[0068] The system shutdown process (T = 60-70 minutes) demonstrates the orderly control capability of the present invention. The system first gradually reduces the water supply pressure, and then shuts down the standby fire pump, the main fire pump and related fire valves in a predetermined order. Finally, the system performs a comprehensive self-check procedure, including a water supply network pressure test and equipment status check, and generates a detailed event report.

[0069] The simulation experiment data fully verified the rapid response, precise control and intelligent adjustment capabilities of the present invention in the face of dynamic fire conditions. The system can quickly adjust strategies based on real-time fire changes, effectively control the spread of fire, and complete the shutdown procedure in an orderly manner after the fire is extinguished. These characteristics significantly improve the fire safety of large buildings. It should be noted that the system performance in actual applications may be affected by the specific building environment, equipment performance and other external factors, and the application effect of the present invention may vary depending on the actual situation.

[0070] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A fire emergency water supply control system, characterized in that: include, Distributed control network, used to establish communication connection with multiple fire detection equipment and multiple water supply equipment, Receive and process fire-related parameters from various fire detection equipment, and control the operation of water supply equipment; Multiple fire detection devices for continuous collection of fire-related parameters; Multiple water supply equipment, including fire valves and fire pumps; Backup power supply module, used to supply power to the system when the main power fails; Remote monitoring and control module, used to exchange data with the fire command center and receive control instructions; Wherein, the distributed control network is also used for: When the fire-related parameters simultaneously meet at least two preset fire judgment conditions and the duration exceeds a preset time threshold, the distributed control network determines the location and level of the fire based on the fire-related parameters, obtains the currently available water supply resource information, calculates the target water supply volume and target water supply pressure according to the location of the fire, the fire level and the available water supply resource information, and determines the optimal water supply path based on the water supply network topology information; The distributed control network controls the relevant water supply equipment according to the optimal water supply path, opens the fire valves in a predetermined sequence, starts and adjusts the fire pumps, and gradually adjusts the actual water supply pressure and flow until the target water supply pressure and the target water supply volume are reached; The distributed control network continuously monitors the water supply network status parameters and the fire-related parameters. When an abnormal condition of the water supply system is detected, the corresponding preset emergency strategy is executed according to the type of abnormal condition detected, and the effect of the emergency measures is monitored and dynamically adjusted; at the same time, an alarm signal is triggered and a notification is sent; When the fire-related parameters continuously meet the preset fire termination conditions and the duration reaches the set threshold, the distributed control network gradually reduces the water supply pressure according to the preset procedure, stops the relevant water supply equipment in a predetermined order, executes the system self-check procedure, and generates a water supply event report.

2. The fire emergency water supply control system according to claim 1, characterized in that: The fire detection equipment includes a fire alarm button, an image recognition system and various environmental parameter sensors; The fire-related parameters include the fire alarm button status, the image recognition system detection results, and environmental parameter data, and the environmental parameter data include smoke concentration, temperature, carbon monoxide concentration, infrared radiation intensity, and ultraviolet radiation intensity; The preset fire judgment conditions include the following: any fire alarm button is activated; the image recognition system detects open fire or thick smoke; the smoke concentration exceeds a first preset threshold; The temperature rise rate exceeds the second preset threshold; the carbon monoxide concentration exceeds the third preset threshold; the infrared radiation intensity exceeds the fourth preset threshold; the ultraviolet radiation intensity exceeds the fifth preset threshold.

3. The fire emergency water supply control system according to claim 1, characterized in that: Determining the fire location and fire level based on fire-related parameters comprises the following steps: Receive and process fire-related parameters from multiple fire detection devices; Determine the location of the fire as follows: When receiving an activation signal from a fire alarm button, determining the installation location of the fire alarm button as the initial fire occurrence location; When the image recognition system detects an open flame or thick smoke, the camera coverage area where the abnormality was detected is determined as the initial fire location; When the environmental parameter data is abnormal, the installation location of the abnormal parameter sensor is determined as the initial fire occurrence location; Comprehensively analyze the location information of multiple abnormal signal sources and determine the final fire location through a preset position interpolation algorithm; Determine the fire grade as follows: Counting the number of parameters that meet the preset fire judgment conditions; Perform weighted calculation on various parameters that meet the preset fire judgment conditions to obtain the initial fire grade score; Dynamically adjusting the initial fire grade score according to the rate of change of the fire-related parameters; Compare the adjusted fire grade score with the preset grade classification standard to determine the final fire grade; receiving and processing the update data of the fire-related parameters in real time, and periodically repeating the steps of determining the location and level of the fire according to the update data; When any water supply strategy recalculation condition is met, recalculation and optimization of the water supply strategy is triggered; The water supply strategy recalculation conditions include that the coordinate change of the fire location exceeds a preset distance threshold, the fire level change exceeds a preset level change threshold, and the change rate of fire-related parameters exceeds a preset rate threshold.

4. The fire emergency water supply control system according to claim 1, characterized in that: The calculation of the target water supply volume and the target water supply pressure comprises the following steps: Based on the location of the fire, determine the distance D from the fire point to the nearest water supply point; According to the fire level, the basic water supply is obtained from the preset fire level-basic water supply demand correspondence table and basic water supply pressure ; Calculate target water supply , the specific formula is as follows: ; in, is the distance influence coefficient, is the available water supply resource adjustment coefficient, is the basic water supply, and D is the distance from the fire point to the nearest water supply point; Calculate the target water supply pressure P, the specific formula is as follows: ; in, is the density of water, g is the acceleration of gravity, H is the height difference from the water supply point to the fire point, k is the pipe network resistance coefficient, is the basic water supply pressure, Target water supply; Determine the distance impact coefficient based on available water supply resource information and the available water supply resource adjustment coefficient ; When the target water supply is calculated When the target water supply pressure P exceeds the system capacity, make the following adjustments: like If the maximum water supply is exceeded, Set it as the maximum water supply of the system and adjust P accordingly; If P exceeds the maximum water supply pressure, set P to the system maximum water supply pressure and adjust accordingly. ; The calculated and P as the target water supply volume and target water supply pressure.

5. The fire emergency water supply control system according to claim 1, characterized in that: Determining the optimal water supply path based on the water supply network topology information includes the following steps: Extracting pipe network node information and pipe segment information from pre-stored water supply pipe network topology information; Based on the location of the fire, initially screen the nearest N available water supply points; For each available water supply point, the improved Dijkstra algorithm is used to calculate all possible paths from the water supply point to the fire point, and each possible path is scored; Select the optimal path for each water supply point based on the score; Compare the optimal paths of all water supply points and select the path with the highest comprehensive score as the candidate optimal water supply path; Check whether the candidate optimal water supply path meets the requirements of target water supply volume and target water supply pressure: If the requirements are met, the path is confirmed as the optimal water supply path finally selected; If the requirements are not met, a suboptimal path is selected and the path verification process is repeated until the optimal water supply path that meets the requirements is found or all possible paths are traversed; If a single path cannot meet the requirements, consider a multi-path water supply solution and select the combination of multiple paths with the highest score; Calculate the total water supply volume and the terminal water supply pressure of the multi-path combination. If the multi-path water supply scheme meets the requirements, it will be confirmed as the optimal water supply path. Save the optimal water supply path.

6. The fire emergency water supply control system according to claim 1, characterized in that: The stepwise adjustment of the actual water supply pressure and flow rate until the target water supply pressure and target water supply volume are reached comprises the following steps: The distributed control network receives the optimal water supply path; Generate a water supply equipment control instruction sequence according to the determined optimal water supply path; Water supply equipment control via distributed control network: Send an opening command to the relevant fire valves, receive and confirm the opening status feedback of the fire valves, send a start command to the designated fire pumps, receive and confirm the start status feedback of the fire pumps; Start the real-time monitoring system to collect actual water supply pressure and flow data in the pipe network; Execute the closed-loop control process: Compare the collected actual water supply pressure and flow data with the target water supply pressure and target water supply volume, and calculate the adjustment parameters according to the comparison results; Sending a regulation command to the fire water pump to adjust the pump speed or water outlet pressure, and after waiting for a preset time interval, re-execute the closed-loop control process until the termination condition is met; Setting up a termination condition judgment mechanism, including when the actual water supply pressure and flow rate reach the target water supply requirements, or when the number of adjustments reaches the preset maximum value; If the target water supply requirement is reached, the current control parameters are recorded and maintained; If the target water supply requirement is not met and the number of adjustments reaches the preset maximum value, the exception handling process is triggered.

7. The fire emergency water supply control system according to claim 1, characterized in that: The execution of the corresponding preset emergency strategy according to the detected abnormal condition type includes the following steps: If the system detects that the water supply pressure or flow rate deviates from the target value, it will automatically adjust the fire pump output parameters and increase or decrease the pump speed through frequency conversion technology. If the adjustment of a single pump cannot meet the requirements, the backup fire pump will be started. At the same time, the real-time optimization algorithm will be used to calculate and implement the multi-point water supply pressure distribution plan; If the system detects that the pressure or flow rate shows a continuous downward trend for N consecutive sampling data, or the pressure at any key node drops below the preset multiple of the minimum allowable working pressure, the backup water supply path will be automatically activated, the multi-pump parallel operation plan will be adjusted, and the optimal water supply path will be recalculated and executed; If the system detects that the water level in the fire pool drops below the preset warning line, or the available water supply resource ratio is lower than the preset resource threshold, the backup water source will be activated, zoning flow control measures will be implemented, water supply to key areas will be guaranteed first, and a request for additional water source support will be sent to the superior fire command center; If the system detects a device failure, it will automatically switch to the backup device and initiate a rapid maintenance plan for the device, adjust the water supply network topology, and bypass the faulty device through bypass technology; If the system identifies a damaged pipeline network, it will automatically close the valves in the pipe section that may be faulty, activate the backup pipeline loop, and dispatch mobile emergency equipment to the affected area.

8. A fire emergency water supply control method, based on the fire emergency water supply control system according to any one of claims 1 to 7, characterized in that: Also includes, Starting a distributed control network and establishing a communication connection between the distributed control network and a plurality of fire detection devices and a plurality of water supply devices; continuously collecting fire-related parameters using the plurality of fire detection devices; When the fire-related parameters meet the preset fire judgment conditions, the distributed control network determines the fire location and fire level based on the fire-related parameters, obtains the currently available water supply resource information, calculates the target water supply volume and target water supply pressure according to the fire location, the fire level and the available water supply resource information, and determines the optimal water supply path based on the pre-stored water supply network topology information; The distributed control network controls the relevant water supply equipment according to the optimal water supply path, opens the fire valves in a predetermined sequence, starts and adjusts the fire pumps, and gradually adjusts the actual water supply pressure and flow until the target water supply pressure and the target water supply volume are reached; The distributed control network continuously monitors the water supply network status parameters and the fire-related parameters. When an abnormal condition is detected, the fire pump output parameters are adjusted or the backup water supply path is activated according to the preset emergency strategy, and the multi-point water supply pressure distribution plan is calculated and optimized in real time; When the fire-related parameters continuously meet the preset fire termination conditions and the duration reaches the set threshold, the distributed control network gradually reduces the water supply pressure according to the preset procedure, stops the relevant water supply equipment in a predetermined order, executes the system self-check procedure, and generates a water supply event report.

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