A flame extinguishing device state monitoring and early warning method, system and storage medium

Abstract

The present invention belongs to the technical field of fire-fighting equipment. The present invention provides a flame extinguishing device state monitoring and early warning method, system and storage medium, including: comparing and processing flow data to obtain a deviation signal, monitoring and analyzing the deviation signal in real time to obtain a deviation early warning value, and judging whether the state of the flame extinguishing device is abnormal; acquiring the pressure data of the flame extinguishing device in real time, and comparing and processing it to judge whether the cause of the abnormal state of the flame extinguishing device is suspected to be insufficient storage of flame extinguishing agent, and if so, combining and analyzing the pressure data and the flow data to obtain a storage performance value to determine whether the storage of flame extinguishing agent in the flame extinguishing device is sufficient, and if not, generating an addition control signal, obtaining a flame extinguishing agent addition value based on the addition control signal, and adding flame extinguishing agent to the flame extinguishing device based on the flame extinguishing agent addition value. The present invention improves the accuracy of identifying the abnormal state of the flame extinguishing device and improves the efficiency of using the flame extinguishing device.

Description

Technical Field

[0001] The present invention belongs to the technical field of fire fighting equipment, and in particular to a flame extinguishing device state monitoring and early warning method, system and storage medium. Background Art

[0002] The status monitoring of flame extinguishing devices mostly relies on manual inspections and simple sensor monitoring, which has problems such as untimely monitoring, delayed warning, and high false alarm rate. Especially in complex environments or emergency situations, manual inspections are difficult to ensure timeliness and accuracy. Therefore, a flame extinguishing device status monitoring and early warning method that can monitor in real time and accurately warn is needed.

[0003] In the prior art, there is a lack of specific analysis of the operating status of the flame extinguishing device. Usually, the operating parameters of the flame extinguishing device are compared with preset thresholds to identify the abnormal status of the flame extinguishing device, but there is a lack of analysis of the changes after the operating parameters deviate from the normal range, such as the deviation time and the degree of deviation, which can easily lead to misidentification of the status of the flame extinguishing device. Secondly, in the prior art, when the status of the flame extinguishing device is abnormal, there is a lack of accurate judgment of the cause of the abnormal status of the flame extinguishing device through the correlation changes between its operating parameters, such as insufficient storage of flame extinguishing materials in the memory, which is not conducive to the efficiency of the maintenance of the flame extinguishing device. In addition, there is a lack of predictive analysis of the changing trends of its operating parameters to more accurately realize the next step of operation control, which is not conducive to the efficient operation and operation of the flame extinguishing device.

[0004] To this end, the present invention provides a flame extinguishing device status monitoring and early warning method, system and storage medium. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve the technical problem is: a flame extinguishing device state monitoring and early warning method, comprising:

[0007] Real-time monitoring of the flow data of the flame extinguishing device within the monitoring period, wherein the flow data includes the flow value of the flame extinguishing agent in the flame extinguishing device, performing comparative processing on the flow data to obtain a deviation signal, and based on the deviation signal, performing real-time monitoring and analysis on the deviation signal to obtain a deviation warning value;

[0008] Based on the deviation warning value, it is judged whether the state of the flame extinguishing device is abnormal, and if abnormal, a warning signal is generated;

[0009] Based on the early warning signal, the pressure data of the flame extinguishing device is obtained in real time, wherein the pressure data includes the pressure value of the flame extinguishing device, and the pressure data of the flame extinguishing device is compared and processed to determine whether the cause of the abnormal state of the flame extinguishing device is suspected to be insufficient storage of the flame extinguishing agent, and if so, a suspected signal is generated;

[0010] Based on the suspected signal, the pressure data and the flow data are combined and analyzed to obtain a storage performance value, and based on the storage performance value, it is determined whether the flame extinguishing agent storage in the flame extinguishing device is sufficient. If it is insufficient, an addition control signal is generated;

[0011] Based on the addition control signal, a flame extinguishing agent addition value is obtained, and flame extinguishing agent is added to the flame extinguishing device based on the flame extinguishing agent addition value.

[0012] As a further technical solution of the present invention, the deviation signal is generated in the following manner:

[0013] Obtain the flow value of the flame extinguishing agent in the flame extinguishing device and compare it with the standard range of flow rate;

[0014] If the flow value deviates from the flow standard range and is less than the minimum value of the flow standard range, a deviation signal is generated.

[0015] As a further technical solution of the present invention, the deviation warning value is obtained by:

[0016] Acquire performance data of the deviation signal, wherein the performance data includes a duration value and a deviation degree value, the duration value is marked as SCZ, and the deviation degree value is marked as PLZ;

[0017] The deviation warning value is calculated based on the duration value SCZ and the deviation degree value PLZ, using the following formula:

[0018] ;

[0019] Among them, PY represents the deviation warning value, and s1 and s2 are both preset proportional coefficients;

[0020] The duration value SCZ is obtained by: obtaining the continuous occurrence time of the deviation signal in real time, marking the time period corresponding to the continuous occurrence time of the deviation signal as the continuous deviation period; extracting the time length of the continuous deviation period and the time length of the monitoring period, performing ratio processing on the time length of the continuous deviation period and the time length of the monitoring period to obtain the duration value SCZ;

[0021] The method for obtaining the deviation degree value PLZ is as follows: obtain all flow values ​​that appear during the continuous deviation period, sum and average all flow values ​​that appear during the continuous deviation period, and obtain the flow mean value during the continuous deviation period; perform difference processing on the flow mean value during the continuous deviation period and the minimum value of the flow standard range, and take the absolute value of the difference to obtain the flow deviation mean value during the continuous deviation period; perform ratio processing on the flow deviation mean value during the continuous deviation period and the minimum value of the flow standard range to obtain the deviation degree value PLZ.

[0022] As a further technical solution of the present invention, the suspected signal is generated in the following manner:

[0023] Get the pressure value of the flame extinguishing device when the deviation signal is generated, and compare the pressure value with the pressure standard range of the flame extinguishing device:

[0024] If the pressure value deviates from the pressure standard range of the flame extinguishing device and is less than the minimum value of the pressure standard range, a suspected signal is generated.

[0025] As a further technical solution of the present invention, the storage performance value is obtained by:

[0026] Obtain the deviation time difference ratio PLB, pressure deviation period ratio YLB and duration value SCZ and process the data, using the formula: Obtain the deviation time synchronization value SJT, where a1 and a2 are both preset proportional coefficients;

[0027] A two-dimensional coordinate system is constructed with time as the X-axis and flow value as the Y-axis, the flow value in the continuous deviation period is obtained, and marked in the two-dimensional coordinate system, and the marked flow value data points are connected to obtain the flow change curve;

[0028] Divide the continuous deviation period into a number of deviation sub-periods of equal time length, and mark the part of the flow change curve corresponding to each deviation sub-period as a flow sub-curve;

[0029] A number of slope collection time points are set within the deviation sub-period, and the tangent slope of the flow sub-curve corresponding to each slope collection time point is measured. The tangent slopes of the flow sub-curve corresponding to all slope collection time points are summed and averaged to obtain the slope value of the flow sub-curve;

[0030] Among all flow sub-curves, if the slope value of the flow sub-curve is negative, the flow sub-curve is marked as a descending sub-curve;

[0031] Count the number of descending sub-curves and perform ratio processing with the number of flow sub-curves to obtain the flow decline duration value, which is marked as XJZ;

[0032] Obtaining the pressure value in the continuous deviation period, and constructing a pressure change curve based on the pressure value in the continuous deviation period, wherein the construction method of the pressure change curve is the same as the construction method of the flow change curve;

[0033] Marking the part of the pressure change curve corresponding to each deviation sub-period as a pressure sub-curve, integrating the pressure sub-curve and the flow sub-curve corresponding to each deviation sub-period into a sub-curve group, and obtaining the slope values ​​of the pressure sub-curve and the flow sub-curve in the sub-curve group, wherein the slope value of the pressure sub-curve is obtained in the same manner as the slope value of the flow sub-curve;

[0034] If the slope values ​​of the pressure sub-curve and the flow sub-curve contained in the sub-curve group have the same positive and negative sign, the sub-curve group is marked as a same-direction sub-curve group;

[0035] Count the number of sub-curve groups in the same direction and perform ratio processing with the number of sub-curve groups to obtain the deviation direction synchronization value and mark it as FXT;

[0036] The obtained deviation time synchronization value SJT, deviation direction synchronization value FXT and flow rate drop duration value XJZ are processed by the formula: A storage performance value CC is obtained, wherein z1, z2 and z3 are all preset proportional coefficients.

[0037] As a further technical solution of the present invention, the deviation time difference ratio PLB is obtained in the following manner:

[0038] Obtaining the time point when the suspected signal is generated, and determining the pressure deviation from the initial time point based on the time point when the suspected signal is generated;

[0039] The method for determining the initial time point of pressure deviation is as follows: during the period between the initial time point of pressure deviation and the time point when the suspected signal is generated, the pressure value always deviates from the pressure standard range of the flame extinguishing device and is less than the minimum value of the pressure standard range;

[0040] The difference between the initial time point of pressure deviation and the time point when the deviation signal is generated is processed to obtain the deviation time difference, and the time length corresponding to the deviation time difference is processed by ratio with the time length corresponding to the monitoring period to obtain the deviation time difference ratio, which is marked as PLB.

[0041] As a further technical solution of the present invention, the pressure deviation period ratio YLB is obtained in the following manner:

[0042] Obtain all pressure values ​​within the continuous deviation period, mark the period corresponding to the pressure value deviating from the pressure standard range of the flame extinguishing device and being less than the minimum value of the pressure standard range as the pressure deviation period, perform ratio processing on the pressure deviation period and the monitoring period to obtain the pressure deviation period ratio, and mark it as YLB.

[0043] As a further technical solution of the present invention, the flame extinguishing agent addition value is obtained by:

[0044] The flow change curve and the pressure change curve are fitted by the least square method to obtain a flow fitting line and a pressure fitting line. The flow fitting line and the pressure fitting line are extended to intersect with the X-axis respectively. The time point corresponding to the intersection of the flow fitting line and the X-axis is obtained and marked as the first prediction time point. The time point corresponding to the intersection of the pressure fitting line and the X-axis is obtained and marked as the second prediction time point.

[0045] The first predicted time point and the second predicted time point are summed and averaged to obtain the predicted time point when the flame extinguishing agent is used up, and marked as the end time point;

[0046] The period between the generation time point and the end time point of the warning signal is marked as the remaining usage period, and the partial flow fitting straight line corresponding to the remaining usage period is obtained and marked as the target flow fitting straight line. All flow values ​​on the target flow fitting straight line are summed and averaged to obtain the flow mean of the remaining usage period, and marked as LJ;

[0047] By formula: The flame extinguishing agent addition value TJZ is obtained, wherein YZ represents the rated capacity of the flame extinguishing agent in the flame extinguishing device, and SD represents the duration corresponding to the remaining use period.

[0048] A flame extinguishing device state monitoring and early warning system, comprising:

[0049] Early warning analysis module: real-time monitoring of the flow data of the flame extinguishing device within the monitoring period, wherein the flow data includes the flow value of the flame extinguishing agent in the flame extinguishing device, and the flow data is compared and processed to obtain a deviation signal. Based on the deviation signal, the deviation signal is monitored and analyzed in real time to obtain a deviation early warning value;

[0050] Early warning judgment module: judges whether the state of the flame extinguishing device is abnormal based on the deviation early warning value, and generates an early warning signal if abnormal;

[0051] Abnormal factor analysis module: Based on the early warning signal, the pressure data of the flame extinguishing device is obtained in real time, wherein the pressure data includes the pressure value of the flame extinguishing device, and the pressure data of the flame extinguishing device is compared and processed to determine whether the abnormal state of the flame extinguishing device is suspected to be caused by insufficient storage of flame extinguishing agent. If so, a suspected signal is generated;

[0052] Control judgment module: Based on the suspected signal, the pressure data and flow data are combined and analyzed to obtain the storage performance value, and based on the storage performance value, it is determined whether the flame extinguishing agent storage in the flame extinguishing device is sufficient. If it is not sufficient, an addition control signal is generated;

[0053] Control quantitative analysis module: based on the addition control signal, obtain the flame extinguishing agent addition value, and add flame extinguishing agent to the flame extinguishing device based on the flame extinguishing agent addition value.

[0054] A storage medium is used to store a flame extinguishing device state monitoring and early warning program, and the flame extinguishing device state monitoring and early warning method is implemented when the flame extinguishing device state monitoring and early warning program is executed by a processor.

[0055] The beneficial effects of the present invention are as follows:

[0056] 1. Real-time monitoring is performed to obtain flow data of the flame extinguishing device within a monitoring period, wherein the flow data includes the flow value of the flame extinguishing agent in the flame extinguishing device, and a deviation signal is obtained based on comparative processing of the flow data. Based on the deviation signal, the deviation signal is monitored in real time, and a deviation warning value is obtained by analysis. Based on the deviation warning value, it is determined whether the state of the flame extinguishing device is abnormal. If abnormal, a warning signal is generated. The present invention monitors and analyzes the flow value of the flame extinguishing agent in the flame extinguishing device, and determines whether the state of the flame extinguishing device is abnormal by analyzing the duration of the flow value deviation from the standard range and the degree of deviation, thereby effectively preventing the flame extinguishing device from misjudgment of abnormal state identification caused by a shorter flow deviation or a smaller degree of flow deviation, thereby improving the accuracy of abnormal state identification of the flame extinguishing device.

[0057] 2. Based on the early warning signal, the pressure data of the flame extinguishing device is obtained in real time, wherein the pressure data includes the pressure value of the flame extinguishing device. Based on the comparative processing of the pressure data of the flame extinguishing device, it is determined whether the cause of the abnormal state of the flame extinguishing device is suspected to be insufficient storage of flame extinguishing agent. If so, a suspected signal is generated. Based on the suspected signal, the pressure data and the flow data are combined and analyzed to obtain a storage performance value. Based on the storage performance value, it is determined whether the storage of flame extinguishing agent in the flame extinguishing device is sufficient. If insufficient, an addition control signal is generated. The present invention effectively analyzes the cause of the abnormal state of the flame extinguishing device (insufficient storage of flame extinguishing agent) by analyzing the deviation change of the flow rate and the corresponding deviation change of the pressure, which is beneficial to the rapid inspection and maintenance of the flame extinguishing device when the state is abnormal, and improves the maintenance accuracy of the flame extinguishing device.

[0058] 3. Based on the addition control signal, the flame extinguishing agent addition value is obtained, and the flame extinguishing agent is added to the flame extinguishing device based on the flame extinguishing agent addition value. The present invention predicts the remaining use period by fitting and predicting the pressure change curve and the flow change curve, and obtains the addition amount of the flame extinguishing agent based on the remaining use period and the flow fitting line within the remaining use period through processing and analysis, which is beneficial to the prediction and evaluation of the addition amount of the flame extinguishing agent and improves the efficiency of the use of the flame extinguishing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] The present invention will be further described below in conjunction with the accompanying drawings.

[0060] Figure 1 This is a flowchart of the steps of a flame extinguishing device status monitoring and early warning method described in Example 1 of the present invention;

[0061] Figure 2 It is a flowchart of the steps of a flame extinguishing device status monitoring and early warning method described in Embodiment 2 and Embodiment 3 of the present invention;

[0062] Figure 3 is a flowchart of a flame extinguishing device status monitoring and early warning system according to Embodiment 4 of the present invention;

[0063] Figure 4 It is a schematic diagram of the storage medium described in Example 5 of the present invention. DETAILED DESCRIPTION

[0064] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0065] Example 1

[0066] like Figure 1 As shown, a flame extinguishing device state monitoring and early warning method according to an embodiment of the present invention comprises:

[0067] Step 1: Real-time monitoring is performed to obtain the flow data of the flame extinguishing device within the monitoring period, wherein the flow data includes the flow value of the flame extinguishing agent in the flame extinguishing device, and a deviation signal is obtained based on comparative processing of the flow data. Based on the deviation signal, the deviation signal is monitored in real time, and a deviation warning value is obtained by analysis;

[0068] It should be noted that the monitoring period is set by those skilled in the art according to the monitoring requirements of the flame extinguishing device;

[0069] In some embodiments, the flow value of the flame extinguishing agent in the flame extinguishing device is obtained by real-time monitoring and is compared with the flow standard range;

[0070] If the flow value does not deviate from the flow standard range, it means that the flow value of the flame extinguishing agent in the flame extinguishing device is within the normal range, and a normal working signal is generated. Based on the normal working signal, the flame extinguishing device continues to work normally;

[0071] If the flow value deviates from the flow standard range and is less than the minimum value of the flow standard range, a deviation signal is generated;

[0072] It should be noted that the standard flow rate range represents the normal flow rate range of the flame extinguishing agent when the flame extinguishing device is in normal condition;

[0073] Based on the deviation signal, real-time monitoring is performed to obtain performance data of the deviation signal, wherein the performance data includes a duration value and a deviation degree value, the duration value is marked as SCZ, and the deviation degree value is marked as PLZ;

[0074] The duration value SCZ and the deviation value PLZ are processed by the formula: The deviation warning value PY is obtained, where s1 and s2 are both preset proportional coefficients;

[0075] In a first exemplary embodiment, the duration value SCZ is obtained in the following manner:

[0076] Based on the deviation signal, the continuous occurrence time of the deviation signal is obtained in real time, and the time period corresponding to the continuous occurrence time of the deviation signal is marked as a continuous deviation period;

[0077] Extract the duration of the continuous deviation period and the duration of the monitoring period, perform ratio processing on the duration of the continuous deviation period and the duration of the monitoring period to obtain the duration value SCZ;

[0078] In a second exemplary embodiment, the deviation level value PLZ is obtained in the following manner:

[0079] Based on the continuous deviation period, all flow values ​​occurring in the continuous deviation period are obtained, and all flow values ​​occurring in the continuous deviation period are summed and averaged to obtain the flow mean value in the continuous deviation period;

[0080] The mean flow rate in the continuous deviation period is processed with the minimum value of the flow standard range, and the absolute value of the difference is taken to obtain the mean flow rate deviation in the continuous deviation period;

[0081] The mean flow deviation value in the continuous deviation period is compared with the minimum value of the flow standard range to obtain the deviation degree value PLZ;

[0082] It should be noted that the deviation warning value PY means: the deviation warning value PY is calculated by the duration value SCZ and the deviation degree value PLZ, wherein the duration value reflects the duration of the flow value of the flame extinguishing agent of the flame extinguishing device deviating from the standard range. The longer the duration, the greater the possibility and degree of abnormality of the flame extinguishing device. The deviation degree value PLZ reflects the average deviation degree of the overall flow value from the standard range during the duration of the flow value of the flame extinguishing agent of the flame extinguishing device deviating from the standard range. The higher the average deviation degree, the greater the possibility and degree of abnormality of the flame extinguishing device.

[0083] Step 2: judging whether the state of the flame extinguishing device is abnormal based on the deviation warning value, and if abnormal, generating a warning signal;

[0084] In some embodiments, the deviation warning value PY is compared with a deviation warning threshold;

[0085] If the deviation warning value PY is greater than the deviation warning threshold, a warning signal is generated;

[0086] If the deviation warning value PY is less than or equal to the deviation warning threshold, no operation is performed;

[0087] The technical solution of the embodiment of the present invention is: real-time monitoring to obtain flow data of the flame extinguishing device within a monitoring period, wherein the flow data includes the flow value of the flame extinguishing agent in the flame extinguishing device, based on comparative processing of the flow data, a deviation signal is obtained, based on the deviation signal, the deviation signal is monitored in real time, and a deviation warning value is obtained by analysis, and whether the state of the flame extinguishing device is abnormal is judged based on the deviation warning value, and if abnormal, a warning signal is generated. The present invention monitors and analyzes the flow value of the flame extinguishing agent in the flame extinguishing device, and judges whether the state of the flame extinguishing device is abnormal by analyzing the duration of the flow value deviation from the standard range and the degree of deviation, thereby effectively preventing the flame extinguishing device from misjudgment of state abnormality caused by a shorter time of flow deviation or a smaller degree of flow deviation, thereby improving the accuracy of identifying abnormal state of the flame extinguishing device.

[0088] Example 2

[0089] like Figure 2 As shown, based on Example 1, a flame extinguishing device state monitoring and early warning method according to an embodiment of the present invention includes:

[0090] Step 3: Based on the early warning signal, the pressure data of the flame extinguishing device is obtained in real time, wherein the pressure data includes the pressure value of the flame extinguishing device, and based on the comparative processing of the pressure data of the flame extinguishing device, it is determined whether the cause of the abnormal state of the flame extinguishing device is suspected to be insufficient storage of the flame extinguishing agent, and if so, a suspected signal is generated;

[0091] In some embodiments, a pressure value of the flame extinguishing device when the deviation signal is generated is obtained, and the pressure value is compared with a pressure standard range of the flame extinguishing device;

[0092] If the pressure value does not deviate from the pressure standard range of the flame extinguishing device, it means that the pressure value is within the normal pressure range, which means that the pressure of the flame extinguishing device is normal at this time, and the flame extinguishing agent inside the flame extinguishing device is sufficient, and no suspicious signal is generated;

[0093] It should be noted that, based on the fact that no suspicious signal is generated, it is necessary to conduct an investigation and analysis on the abnormal factors that affect the flow rate of the flame extinguishing agent in the flame extinguishing device, wherein the investigation and analysis include but are not limited to: flame extinguishing device pipeline blockage detection and investigation, valve opening and closing detection and investigation, and pump group operation detection and investigation, etc.;

[0094] If the pressure value deviates from the pressure standard range of the flame extinguishing device and is less than the minimum value of the pressure standard range, a suspected signal is generated;

[0095] It should be noted that the meaning of the suspected signal is: the pressure value deviates from the pressure standard range of the flame extinguishing device and is less than the minimum value of the pressure standard range, and the flow value at this time also deviates from the flow standard range of the flame extinguishing device and is less than the minimum value of the flow standard range, which means that the pressure and flow of the flame extinguishing device are both less than the normal range, indicating that the flame extinguishing agent in the flame extinguishing device may be insufficient, and further analysis and determination are required;

[0096] Step 4: Based on the suspected signal, the pressure data and the flow data are combined and analyzed to obtain a storage performance value, and based on the storage performance value, it is determined whether the flame extinguishing agent storage in the flame extinguishing device is sufficient. If it is insufficient, an addition control signal is generated;

[0097] In some embodiments, a time point when the suspected signal is generated is obtained, and a pressure deviation from an initial time point is determined based on the time point when the suspected signal is generated;

[0098] The method for determining the initial time point of pressure deviation is as follows: during the period between the initial time point of pressure deviation and the time point when the suspected signal is generated, the pressure value always deviates from the pressure standard range of the flame extinguishing device and is less than the minimum value of the pressure standard range;

[0099] It should be noted that if there is no period between the initial time point of pressure deviation and the time point when the suspected signal is generated, that is, the time point from the initial time point of pressure deviation to the time point when the suspected signal is generated coincides, then the initial time point of pressure deviation is the time point when the suspected signal is generated;

[0100] Perform difference processing between the initial time point of pressure deviation and the time point when the deviation signal is generated to obtain the deviation time difference, perform ratio processing between the time length corresponding to the deviation time difference and the time length corresponding to the monitoring period to obtain the deviation time difference ratio, which is marked as PLB;

[0101] Obtain all pressure values ​​within the continuous deviation period, mark the period corresponding to the pressure value deviating from the pressure standard range of the flame extinguishing device and being less than the minimum value of the pressure standard range as the pressure deviation period, perform ratio processing on the pressure deviation period and the monitoring period, obtain the pressure deviation period ratio, and mark it as YLB;

[0102] The obtained deviation time difference ratio PLB, pressure deviation period ratio YLB and duration value SCZ are processed by the formula: Obtain the deviation time synchronization value SJT, where a1 and a2 are both preset proportional coefficients;

[0103] A two-dimensional coordinate system is constructed with time as the X-axis and flow value as the Y-axis. The flow value in the continuous deviation period is obtained and marked in the two-dimensional coordinate system. The marked flow value data points are connected to obtain the flow change curve.

[0104] Divide the continuous deviation period into a number of deviation sub-periods of equal time length, and mark the part of the flow change curve corresponding to each deviation sub-period as a flow sub-curve;

[0105] A number of slope collection time points are set within the deviation sub-period, and the tangent slope of the flow sub-curve corresponding to each slope collection time point is measured. The tangent slopes of the flow sub-curve corresponding to all slope collection time points are summed and averaged to obtain the slope value of the flow sub-curve;

[0106] Among all flow sub-curves, if the slope value of the flow sub-curve is negative, the flow sub-curve is marked as a descending sub-curve, and if the slope value of the flow sub-curve is not negative, the flow sub-curve is marked as a non-declining sub-curve;

[0107] Count the number of descending sub-curves and perform ratio processing with the number of flow sub-curves to obtain the flow decline duration value, which is marked as XJZ;

[0108] Obtaining the pressure value in the continuous deviation period, and constructing a pressure change curve based on the pressure value in the continuous deviation period, wherein the construction method of the pressure change curve is the same as the construction method of the flow change curve;

[0109] Marking the part of the pressure change curve corresponding to each deviation sub-period as a pressure sub-curve, integrating the pressure sub-curve and the flow sub-curve corresponding to each deviation sub-period into a sub-curve group, and obtaining the slope values ​​of the pressure sub-curve and the flow sub-curve in the sub-curve group, wherein the slope value of the pressure sub-curve is obtained in the same manner as the slope value of the flow sub-curve;

[0110] If the slope values ​​of the pressure sub-curve and the flow sub-curve contained in the sub-curve group have the same positive and negative sign, the sub-curve group is marked as a same-direction sub-curve group;

[0111] If the slope values ​​of the pressure sub-curve and the flow sub-curve contained in the sub-curve group are of different positive and negative sign, the sub-curve group is marked as a non-co-directional sub-curve group;

[0112] Count the number of sub-curve groups in the same direction and perform ratio processing with the number of sub-curve groups to obtain the deviation direction synchronization value and mark it as FXT;

[0113] The obtained deviation time synchronization value SJT, deviation direction synchronization value FXT and flow rate drop duration value XJZ are processed by the formula: Obtaining a storage performance value CC, wherein z1, z2 and z3 are all preset proportional coefficients;

[0114] It should be noted that the storage performance value CC means: by analyzing the change relationship between flow rate and pressure, it reflects the storage adequacy of the flame extinguishing agent in the flame extinguishing device. The storage performance value CC is calculated and processed by the deviation time synchronization value SJT, the deviation direction synchronization value FXT and the flow rate drop duration value XJZ. Specifically, the deviation time synchronization value SJT reflects the degree of synchronization between the pressure deviation from the normal range and the flow rate deviation from the normal range in terms of deviation time and deviation time duration. The higher the degree of synchronization, the higher the synchronization of pressure and flow rate changes, and the greater the possibility of insufficient storage of flame extinguishing agent in the flame extinguishing device. Secondly, the deviation direction synchronization value FXT reflects the synchronization of flow rate change and pressure change in their directions. The larger the deviation direction synchronization value, the greater the flow rate change and pressure change show changes in the same direction to a great extent, for example, the same increase and decrease. The flow rate drop duration value XJZ reflects the persistence of the decrease of the flow rate after it deviates from the normal range. The higher the persistence, the greater the possibility of insufficient storage of flame extinguishing agent in the flame extinguishing device.

[0115] In some embodiments, the storage performance value CC is compared to a storage performance threshold value;

[0116] If the storage performance value CC is greater than the storage performance threshold, it means that the flame extinguishing agent storage in the flame extinguishing device is insufficient, and an addition control signal is generated;

[0117] If the storage performance value CC is less than or equal to the storage performance threshold, it means that the flame extinguishing agent in the flame extinguishing device is adequately stored;

[0118] Based on the adding control signal, the adding control signal is sent to the adding device terminal, and the adding device terminal is used to realize the adding control of the flame extinguishing agent of the flame extinguishing device;

[0119] The technical solution of the embodiment of the present invention is: based on the early warning signal, the pressure data of the flame extinguishing device is obtained in real time, wherein the pressure data includes the pressure value of the flame extinguishing device; based on the comparative processing of the pressure data of the flame extinguishing device, it is determined whether the cause of the abnormal state of the flame extinguishing device is suspected to be insufficient storage of flame extinguishing agent; if so, a suspected signal is generated; based on the suspected signal, the pressure data and flow data are combined and analyzed to obtain a storage performance value; based on the storage performance value, it is determined whether the storage of flame extinguishing agent in the flame extinguishing device is sufficient; if not, an addition control signal is generated; the present invention effectively analyzes the cause of the abnormal state of the flame extinguishing device (insufficient storage of flame extinguishing agent) by analyzing the deviation change of the flow rate and the corresponding deviation change of the pressure, which is conducive to the rapid inspection and maintenance of the flame extinguishing device when the state is abnormal, and improves the maintenance accuracy of the flame extinguishing device.

[0120] Example 3

[0121] like Figure 2 As shown, based on Example 1 and Example 2, a flame extinguishing device state monitoring and early warning method according to an embodiment of the present invention includes:

[0122] Step 5: based on the addition control signal, obtaining the flame extinguishing agent addition value, and adding the flame extinguishing agent to the flame extinguishing device based on the flame extinguishing agent addition value;

[0123] Specifically, the flow change curve and the pressure change curve are fitted respectively by using the least square method to obtain a flow fitting line and a pressure fitting line, and the flow fitting line and the pressure fitting line are respectively extended so that the flow fitting line and the pressure fitting line intersect with the X-axis respectively, and the time point corresponding to the intersection of the flow fitting line and the X-axis is obtained and marked as the first prediction time point, and the time point corresponding to the intersection of the pressure fitting line and the X-axis is obtained and marked as the second prediction time point;

[0124] The first predicted time point and the second predicted time point are summed and averaged to obtain the predicted time point when the flame extinguishing agent is used up, and the predicted time point when the flame extinguishing agent is used up is marked as the end time point;

[0125] The period between the generation time point and the end time point of the warning signal is marked as the remaining usage period, and the partial flow fitting straight line corresponding to the remaining usage period is obtained. The partial flow fitting straight line is marked as the target flow fitting straight line, and all flow values ​​on the target flow fitting straight line are summed and averaged to obtain the flow mean of the remaining usage period, which is marked as LJ;

[0126] By formula: The flame extinguishing agent addition value TJZ is obtained, where YZ represents the rated capacity of the flame extinguishing agent in the flame extinguishing device, and SD represents the duration corresponding to the remaining use period;

[0127] It should be noted that the calculation process of the flame extinguishing agent addition value TJZ is as follows: the duration corresponding to the remaining use period is multiplied by the mean flow rate of the remaining use period to obtain the total amount of flame extinguishing agent used in the remaining use period (the remaining total amount of flame extinguishing agent), and the rated capacity of the flame extinguishing agent in the flame extinguishing device is subtracted from the total amount of flame extinguishing agent used in the remaining use period to obtain the required amount of flame extinguishing agent to be added;

[0128] The technical solution of the embodiment of the present invention is: based on the addition control signal, the flame extinguishing agent addition value is obtained, and the flame extinguishing agent is added to the flame extinguishing device based on the flame extinguishing agent addition value. The present invention predicts the remaining use period by fitting and predicting the pressure change curve and the flow change curve, and obtains the addition amount of the flame extinguishing agent based on the remaining use period and the flow fitting line within the remaining use period through processing and analysis, which is beneficial to the prediction and evaluation of the flame extinguishing agent addition amount and improves the efficiency of the use of the flame extinguishing device.

[0129] Example 4

[0130] like Figure 3 As shown, a flame extinguishing device state monitoring and early warning system according to an embodiment of the present invention comprises:

[0131] Early warning analysis module: real-time monitoring to obtain the flow data of the flame extinguishing device within the monitoring period, wherein the flow data includes the flow value of the flame extinguishing agent in the flame extinguishing device, and based on the comparison and processing of the flow data, a deviation signal is obtained, and based on the deviation signal, the deviation signal is monitored in real time, and the deviation warning value is obtained by analysis;

[0132] Early warning judgment module: judges whether the state of the flame extinguishing device is abnormal based on the deviation early warning value, and generates an early warning signal if abnormal;

[0133] Abnormal factor analysis module: based on the early warning signal, the pressure data of the flame extinguishing device is obtained in real time, wherein the pressure data includes the pressure value of the flame extinguishing device. Based on the comparative processing of the pressure data of the flame extinguishing device, it is judged whether the abnormal state of the flame extinguishing device is suspected to be due to insufficient storage of the flame extinguishing agent. If so, a suspected signal is generated;

[0134] Control judgment module: Based on the suspected signal, the pressure data and flow data are combined and analyzed to obtain the storage performance value, and based on the storage performance value, it is determined whether the flame extinguishing agent storage in the flame extinguishing device is sufficient. If it is not sufficient, an addition control signal is generated;

[0135] Control quantitative analysis module: based on the addition control signal, obtain the flame extinguishing agent addition value, and add flame extinguishing agent to the flame extinguishing device based on the flame extinguishing agent addition value.

[0136] Example 5

[0137] Based on Example 1, Example 2 and Example 3, please refer to Figure 4 As shown, the storage medium for storing the flame extinguishing device status monitoring and early warning program described in the embodiment of the present invention includes a processor for reading and executing the flame extinguishing device status monitoring and early warning program, thereby realizing any of the above-mentioned methods for flame extinguishing device status monitoring and early warning.

[0138] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A flame extinguishing device status monitoring and early warning method, characterized in that: include: Real-time monitoring of the flow data of the flame extinguishing device within the monitoring period, wherein the flow data includes the flow value of the flame extinguishing agent in the flame extinguishing device, performing comparative processing on the flow data to obtain a deviation signal, and based on the deviation signal, performing real-time monitoring and analysis on the deviation signal to obtain a deviation warning value; Based on the deviation warning value, it is judged whether the state of the flame extinguishing device is abnormal, and if abnormal, a warning signal is generated; Based on the early warning signal, the pressure data of the flame extinguishing device is obtained in real time, wherein the pressure data includes the pressure value of the flame extinguishing device, and the pressure data of the flame extinguishing device is compared and processed to determine whether the cause of the abnormal state of the flame extinguishing device is suspected to be insufficient storage of the flame extinguishing agent, and if so, a suspected signal is generated; Based on the suspected signal, the pressure data and the flow data are combined and analyzed to obtain a storage performance value, and based on the storage performance value, it is determined whether the flame extinguishing agent storage in the flame extinguishing device is sufficient. If it is insufficient, an addition control signal is generated; Based on the addition control signal, a flame extinguishing agent addition value is obtained, and flame extinguishing agent is added to the flame extinguishing device based on the flame extinguishing agent addition value; The storage performance value is obtained in the following manner: Obtain the deviation time difference ratio PLB, pressure deviation period ratio YLB and duration value SCZ and process the data, using the formula: Obtain the deviation time synchronization value SJT, where a1 and a2 are both preset proportional coefficients; A two-dimensional coordinate system is constructed with time as the X-axis and flow value as the Y-axis, the flow value in the continuous deviation period is obtained, and marked in the two-dimensional coordinate system, and the marked flow value data points are connected to obtain the flow change curve; Divide the continuous deviation period into a number of deviation sub-periods of equal time length, and mark the part of the flow change curve corresponding to each deviation sub-period as a flow sub-curve; A number of slope collection time points are set within the deviation sub-period, and the tangent slope of the flow sub-curve corresponding to each slope collection time point is measured. The tangent slopes of the flow sub-curve corresponding to all slope collection time points are summed and averaged to obtain the slope value of the flow sub-curve; Among all flow sub-curves, if the slope value of the flow sub-curve is negative, the flow sub-curve is marked as a descending sub-curve; The number of the descending sub-curves is counted and the ratio is processed with the number of the flow sub-curves to obtain the flow decline duration value, and the flow decline duration value is marked as XJZ; Obtaining the pressure value in the continuous deviation period, and constructing a pressure change curve based on the pressure value in the continuous deviation period, wherein the construction method of the pressure change curve is the same as the construction method of the flow change curve; Marking the part of the pressure change curve corresponding to each deviation sub-period as a pressure sub-curve, integrating the pressure sub-curve and the flow sub-curve corresponding to each deviation sub-period into a sub-curve group, and obtaining the slope values ​​of the pressure sub-curve and the flow sub-curve in the sub-curve group, wherein the slope value of the pressure sub-curve is obtained in the same manner as the slope value of the flow sub-curve; If the slope values ​​of the pressure sub-curve and the flow sub-curve contained in the sub-curve group have the same positive and negative sign, the sub-curve group is marked as a same-direction sub-curve group; The number of sub-curve groups in the same direction is counted, and the ratio is processed with the number of sub-curve groups to obtain the deviation direction synchronization value, and the deviation direction synchronization value is marked as FXT; The obtained deviation time synchronization value SJT, deviation direction synchronization value FXT and flow drop duration value XJZ are processed and the storage performance value CC is obtained through the formula: CC=z1*SJT+z2*FXT+z3*XJZ, where z1, z2 and z3 are all preset proportional coefficients.

2. The flame extinguishing device status monitoring and early warning method according to claim 1 is characterized in that: The deviation signal is generated as follows: Obtain the flow value of the flame extinguishing agent in the flame extinguishing device and compare it with the standard range of flow rate; If the flow value deviates from the flow standard range and is less than the minimum value of the flow standard range, a deviation signal is generated.

3. The flame extinguishing device status monitoring and early warning method according to claim 2 is characterized in that: The deviation warning value is obtained in the following manner: Acquire performance data of the deviation signal, wherein the performance data includes a duration value and a deviation degree value, the duration value is marked as SCZ, and the deviation degree value is marked as PLZ; The deviation warning value is calculated based on the duration value SCZ and the deviation degree value PLZ, using the following formula: Among them, PY represents the deviation warning value, and s1 and s2 are both preset proportional coefficients; The duration value SCZ is obtained by: obtaining the continuous occurrence time of the deviation signal in real time, marking the time period corresponding to the continuous occurrence time of the deviation signal as the continuous deviation period; extracting the time length of the continuous deviation period and the time length of the monitoring period, performing ratio processing on the time length of the continuous deviation period and the time length of the monitoring period to obtain the duration value SCZ; The method for obtaining the deviation degree value PLZ is as follows: obtain all flow values ​​that appear during the continuous deviation period, sum and average all flow values ​​that appear during the continuous deviation period, and obtain the flow mean value during the continuous deviation period; perform difference processing on the flow mean value during the continuous deviation period and the minimum value of the flow standard range, and take the absolute value of the difference to obtain the flow deviation mean value during the continuous deviation period; perform ratio processing on the flow deviation mean value during the continuous deviation period and the minimum value of the flow standard range to obtain the deviation degree value PLZ.

4. The flame extinguishing device status monitoring and early warning method according to claim 1 is characterized in that: The suspected signal is generated in the following manner: Get the pressure value of the flame extinguishing device when the deviation signal is generated, and compare the pressure value with the pressure standard range of the flame extinguishing device: If the pressure value deviates from the pressure standard range of the flame extinguishing device and is less than the minimum value of the pressure standard range, a suspected signal is generated.

5. The flame extinguishing device status monitoring and early warning method according to claim 4 is characterized in that: The deviation time difference ratio PLB is obtained in the following manner: Obtaining the time point when the suspected signal is generated, and determining the pressure deviation from the initial time point based on the time point when the suspected signal is generated; The method for determining the initial time point of pressure deviation is as follows: during the period between the initial time point of pressure deviation and the time point when the suspected signal is generated, the pressure value always deviates from the pressure standard range of the flame extinguishing device and is less than the minimum value of the pressure standard range; The initial time point of pressure deviation and the time point when the deviation signal is generated are subjected to difference processing to obtain the deviation time difference, and the time length corresponding to the deviation time difference is subjected to ratio processing to the time length corresponding to the monitoring period to obtain the deviation time difference ratio, which is marked as PLB.

6. The flame extinguishing device status monitoring and early warning method according to claim 1 is characterized in that: The pressure deviation period ratio YLB is obtained as follows: Obtain all pressure values ​​within the continuous deviation period, mark the period corresponding to the pressure value deviating from the pressure standard range of the flame extinguishing device and being less than the minimum value of the pressure standard range as the pressure deviation period, perform ratio processing on the pressure deviation period and the monitoring period to obtain the pressure deviation period ratio, and mark the pressure deviation period ratio as YLB.

7. The flame extinguishing device status monitoring and early warning method according to claim 1 is characterized in that: The flame extinguishing agent addition value is obtained in the following manner: The flow change curve and the pressure change curve are fitted by the least square method to obtain a flow fitting line and a pressure fitting line. The flow fitting line and the pressure fitting line are extended to intersect with the X-axis respectively. The time point corresponding to the intersection of the flow fitting line and the X-axis is obtained and marked as the first prediction time point. The time point corresponding to the intersection of the pressure fitting line and the X-axis is obtained and marked as the second prediction time point. The first predicted time point and the second predicted time point are summed and averaged to obtain the predicted time point when the flame extinguishing agent is used up, and marked as the end time point; The period between the generation time point and the end time point of the warning signal is marked as the remaining usage period, and the partial flow fitting straight line corresponding to the remaining usage period is obtained. The partial flow fitting straight line is marked as the target flow fitting straight line, and all flow values ​​on the target flow fitting straight line are summed and averaged to obtain the flow mean of the remaining usage period, which is marked as LJ; The flame extinguishing agent addition value TJZ is obtained through the formula: TJZ=YZ-(LJ*SD), wherein YZ represents the rated capacity of the flame extinguishing agent in the flame extinguishing device, and SD represents the duration corresponding to the remaining use period.

8. A flame extinguishing device state monitoring and early warning system, the system is used to implement the flame extinguishing device state monitoring and early warning method according to any one of claims 1 to 7, characterized in that: include: Early warning analysis module: real-time monitoring of the flow data of the flame extinguishing device within the monitoring period, wherein the flow data includes the flow value of the flame extinguishing agent in the flame extinguishing device, and the flow data is compared and processed to obtain a deviation signal. Based on the deviation signal, the deviation signal is monitored and analyzed in real time to obtain a deviation early warning value; Early warning judgment module: judges whether the state of the flame extinguishing device is abnormal based on the deviation early warning value, and generates an early warning signal if abnormal; Abnormal factor analysis module: Based on the early warning signal, the pressure data of the flame extinguishing device is obtained in real time, wherein the pressure data includes the pressure value of the flame extinguishing device, and the pressure data of the flame extinguishing device is compared and processed to determine whether the abnormal state of the flame extinguishing device is suspected to be caused by insufficient storage of flame extinguishing agent. If so, a suspected signal is generated; Control judgment module: Based on the suspected signal, the pressure data and flow data are combined and analyzed to obtain the storage performance value, and based on the storage performance value, it is determined whether the flame extinguishing agent storage in the flame extinguishing device is sufficient. If it is not sufficient, an addition control signal is generated; Control quantitative analysis module: based on the addition control signal, obtain the flame extinguishing agent addition value, and add the flame extinguishing agent to its flame extinguishing device based on the flame extinguishing agent addition value.

9. A storage medium, characterized in that: The storage medium is used to store a flame extinguishing device status monitoring and early warning program, and when the flame extinguishing device status monitoring and early warning program is executed by the processor, the flame extinguishing device status monitoring and early warning method according to any one of claims 1 to 7 is implemented.

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