Internet-based vehicle-mounted mobile fire extinguisher maintenance system

Abstract

This invention discloses an internet-based vehicle-mounted mobile fire extinguisher maintenance system. The system includes a fire extinguisher information acquisition module, a fire extinguisher detection module, and a fire extinguisher maintenance module. This invention obtains an anomaly assessment value for the fire extinguisher by real-time monitoring of its temperature and pressure. If the anomaly assessment value exceeds a specified threshold, the fire extinguisher is considered unqualified. For fire extinguishers with anomaly assessment values ​​below the specified threshold, an intelligent fire extinguisher identification method is used to determine their qualification. The remaining extinguishing agent quantity is used as an indicator of extinguishing agent dosage, waste powder quality is used to evaluate waste powder quality, pressure is used to determine if the cylinder is damaged, and pressure holding time is used to determine the normal operating time. This achieves rapid fire extinguisher detection and solves the problem of existing technologies that cannot detect fire extinguishers in real time.

Description

Technical Field

[0001] This invention relates to the field of fire extinguisher maintenance technology, and more particularly to an internet-based vehicle-mounted mobile fire extinguisher maintenance system. Background Technology

[0002] With the frequent occurrence of fire accidents, fire extinguishers, as devices for extinguishing and controlling fires, are widely placed in public places and areas where fires may occur. Different types of fire extinguishers contain different ingredients and are designed for different causes of fires. Regardless of the type of fire extinguisher, regular inspection and maintenance are required. However, manual on-site inspection or transporting fire extinguishers to specific locations for inspection is not only time-consuming but also increases costs. Therefore, a method that can save time and manpower for fire extinguisher maintenance is needed.

[0003] Existing internet-based vehicle-mounted mobile fire extinguisher maintenance systems determine whether a fire extinguisher needs maintenance by inspecting its appearance and cylinder, but they overlook factors such as whether the extinguishing agent inside the fire extinguisher has expired, and they cannot detect in real time whether a fire extinguisher needs maintenance.

[0004] For example, CN112957646A discloses a mobile fire extinguisher maintenance system and its application, including: a mobile device, a maintenance device installed on the mobile device, and a controller for controlling the maintenance device. The maintenance device includes an appearance inspection module, a disassembly module, a cylinder inspection module, a filling module, an airtightness inspection module, and a transport component for transporting fire extinguishers to each module. By organically combining the fire extinguisher inspection and maintenance devices and integrating them into a truck chassis, fire extinguisher inspection becomes more convenient. Compared to the existing centralized transportation to a recycling and inspection center, its efficiency is significantly improved. Automatic fire extinguisher maintenance is achieved through transverse and longitudinal slide rails, a rotating disc, and a railcar. The system is automatically controlled by a control system, requiring no manual intervention, making fire extinguisher maintenance convenient and quick.

[0005] For example, CN214130049U discloses a fire extinguisher maintenance device, including a workbench, a disassembly and assembly mechanism, and a filling and weighing mechanism. The rear end of the workbench has a shelf and a powder extraction box. An inflation head is placed on the shelf and connected to an external inflation pipeline via a flexible hose. The disassembly and assembly mechanism is located on the workbench. The filling and weighing mechanism includes a weighing sensor and a filling mechanism. The weighing sensor is connected to the powder extraction box, and the filling mechanism is suspended from the weighing sensor. The filling mechanism has a fixed filling head and a lifting and placing platform. The workbench has a through hole matching the lifting and placing platform. A powder extraction pipe is connected to the powder extraction box, and the powder extraction pipe is connected to an insertion tube via a flexible hose. The insertion tube matches the nozzle of the fire extinguisher. The side of the workbench also has a fire extinguisher inflation slot. This device is easy to operate and organically integrates the processes of fire extinguisher disassembly, powder extraction, powder filling, weighing, assembly, and inflation, improving the maintenance efficiency of fire extinguishers.

[0006] However, in the process of implementing the inventive technical solution in the embodiments of this application, it was found that the above-mentioned technology has at least the following technical problems:

[0007] In existing technologies, while internet-based vehicle-mounted mobile fire extinguisher maintenance systems determine whether a fire extinguisher needs maintenance by inspecting its appearance and cylinder, they neglect factors such as whether the extinguishing agent inside the fire extinguisher has expired. They also cannot detect in real time whether a fire extinguisher needs maintenance, resulting in a problem of not being able to detect fire extinguishers in real time. Summary of the Invention

[0008] This application provides an Internet-based vehicle-mounted mobile fire extinguisher maintenance system, which solves the problem of the inability to detect fire extinguishers in real time in the prior art, and realizes rapid detection of fire extinguishers.

[0009] This application provides an internet-based vehicle-mounted mobile fire extinguisher maintenance system, including: a fire extinguisher information acquisition module, a fire extinguisher detection module, and a fire extinguisher maintenance module; wherein, the fire extinguisher information acquisition module is used to collect equipment information and monitoring information of the fire extinguisher; the fire extinguisher detection module is used to process the information collected by the fire extinguisher information acquisition module to obtain a fire extinguisher anomaly assessment value; if the fire extinguisher anomaly assessment value is greater than a specified threshold, the fire extinguisher is judged to be unqualified; for fire extinguishers whose anomaly assessment value is not greater than the specified threshold, the fire extinguisher's qualification is identified by a fire extinguisher intelligent identification method; the fire extinguisher maintenance module is used to process the information collected by the fire extinguisher information acquisition module to determine the remaining extinguishing agent. The system assesses the remaining extinguishing agent quantity. For fire extinguishers with an extinguishing agent quantity assessment value below the specified threshold, extinguishing agent is added. Fire extinguishers detected as non-compliant by the fire extinguisher detection module are recorded, and maintenance personnel are notified to remove the extinguishing agent. Information collected by the fire extinguisher information acquisition module is processed to obtain waste powder quality assessment value, fire extinguisher pressure assessment value, and pressure holding time assessment value. The waste powder quality assessment value is used to evaluate the quality of the waste powder. The fire extinguisher pressure assessment value is used to determine if the cylinder is damaged. If the cylinder is damaged, maintenance personnel are notified to affix a scrap label to the damaged fire extinguisher. If the cylinder is not damaged, no action is taken. The pressure holding time assessment value is used to determine the normal operating time of the fire extinguisher, and maintenance personnel are notified to dry the fire extinguisher and refill the extinguishing agent.

[0010] Furthermore, the equipment information of the fire extinguisher includes: the type of fire extinguisher, the model of the fire extinguisher, the components of the fire extinguisher as indicated on the fire extinguisher nameplate and the corresponding proportion of each component, and the pressure holding pressure of the fire extinguisher. The monitoring information of the fire extinguisher includes: the fire extinguisher temperature, the fire extinguishing dosage, the pressure value, the water level value, and the components of the fire extinguisher as indicated on the fire extinguisher nameplate in the waste powder and the corresponding proportion of each component.

[0011] Furthermore, the specific analysis method for the abnormal assessment value of the fire extinguisher is as follows: real-time acquisition of the pressure values ​​of various fire extinguishers of the same type at the same time point, calculation of the average pressure value of different models of fire extinguishers at the same time point by the average summation method, and calculation of the abnormal assessment value of the fire extinguisher based on the difference between the pressure value of the fire extinguisher at the same time point and the average pressure value, as well as the temperature assessment value.

[0012] Furthermore, the specific analysis method for the temperature assessment value is as follows: obtain the temperature of the fire extinguisher at different time points; at the same time point, obtain the temperature of each fire extinguisher of the same type and calculate the average temperature value; obtain the temperature assessment value based on the temperature of the fire extinguisher at different time points and the average value; if the temperature assessment value is greater than the specified threshold, it indicates that the fire extinguisher needs to be repaired; if the temperature assessment value is not greater than the specified threshold, no operation is required.

[0013] Furthermore, the specific analysis process of the intelligent fire extinguisher identification method is as follows: Input the pressure value and the date of manufacture of the fire extinguisher; train the fire extinguisher using the pressure value and date of manufacture; determine whether the fire extinguisher is qualified and affix a qualified or unqualified label as a training set; obtain the pressure value and date of manufacture of the fire extinguisher to be tested; use the pressure value of the fire extinguisher as the horizontal axis and the date of manufacture as the vertical axis; calculate the proximity distance value by comparing the pressure value and date of manufacture of the fire extinguisher to be tested with the pressure values ​​and date of manufacture of several adjacent fire extinguishers in the training set using the proximity distance formula; select the minimum proximity distance value from all proximity distance values, and use the corresponding qualified or unqualified label as the qualified or unqualified label of the fire extinguisher to be tested.

[0014] Furthermore, the specific analysis method of the proximity distance formula is as follows: subtract the x-coordinate of the fire extinguisher to be detected from the x-coordinate of several fire extinguishers adjacent to it in the training set, and obtain the x-coordinate distance; subtract the y-coordinate of the fire extinguisher to be detected from the y-coordinate of several fire extinguishers adjacent to it in the training set, and obtain the y-coordinate distance; then take the square root of the square of the x-coordinate distance plus the square of the y-coordinate distance to obtain the proximity distance value.

[0015] Furthermore, the specific analysis method for the remaining extinguishing agent assessment value is as follows: Obtain the extinguishing agent dosage, type, and model of the fire extinguisher at different time points; determine the weight of the fire extinguisher container based on the type and model; and derive the remaining extinguishing agent assessment value using the extinguishing agent dosage and container weight at different time points. If the remaining extinguishing agent assessment value is lower than a specified threshold, the fire extinguisher is repaired; if the remaining extinguishing agent assessment value is not lower than the specified threshold, no repair is performed. An analysis formula for the remaining extinguishing agent assessment value is constructed, and the remaining extinguishing agent assessment value is derived from this formula. The analysis formula for the remaining extinguishing agent assessment value is as follows: In the formula, Let p represent the residual extinguishing agent value of the nth fire extinguisher of the i-th type of fire extinguisher (numbered m) at time point p. Here, m represents the type of fire extinguisher (m = 1, 2, 3, ..., m0), m0 represents the total number of fire extinguisher types, n represents the number of fire extinguishers (n = 1, 2, 3, ..., n0), n0 represents the total number of fire extinguishers, and p represents the time point (p = 1, 2, 3, ..., q), q represents the total number of time points. This represents the remaining extinguishing capacity of the nth fire extinguisher corresponding to fire extinguisher type m at time point p. This represents the weight of the container of the i-th type of fire extinguisher corresponding to the type of fire extinguisher numbered m, where i represents the type of fire extinguisher, i = 1, 2, 3, ..., i0, and i0 represents the total number of fire extinguisher types.

[0016] Furthermore, the specific analysis method for the fire extinguisher pressure rating is as follows: notify maintenance personnel to pressurize the fire extinguisher, obtain the pressure value and water level value of the fire extinguisher at different time points, and obtain the fire extinguisher pressure rating value based on the pressure value and water level value. If the fire extinguisher pressure rating value is zero, it indicates that the fire extinguisher cylinder is damaged; if the fire extinguisher pressure rating value is one, it indicates that the fire extinguisher cylinder is normal.

[0017] Furthermore, the specific analysis method for the waste powder quality assessment value is as follows: Obtain the components of the fire extinguisher and their corresponding proportions as indicated on the fire extinguisher nameplate; number the components indicated on the fire extinguisher nameplate; detect the components indicated on the fire extinguisher nameplate and their corresponding proportions in the waste powder; compare the content of each component indicated on the fire extinguisher nameplate with the corresponding content of each component in the waste powder to obtain the waste powder quality assessment value; construct the waste powder quality assessment value analysis formula; and derive the waste powder quality assessment value based on this formula. The waste powder quality assessment value analysis formula is as follows: In the formula, φ mn Let f represent the waste powder quality assessment value of the nth fire extinguisher corresponding to fire extinguisher type m, and let f represent the component numbers of the fire extinguisher as indicated on the fire extinguisher nameplate, f = 1, 2, 3, ..., f0, where f0 represents the total number of component numbers of the fire extinguisher as indicated on the fire extinguisher nameplate. This represents the percentage of the f-th component in the waste powder of the nth fire extinguisher corresponding to the fire extinguisher type numbered m. This represents the percentage of the f-th component listed on the nameplate of the nth fire extinguisher corresponding to fire extinguisher type m. This indicates the weight of the f-th component listed on the nameplate of the nth fire extinguisher corresponding to the fire extinguisher type numbered m in the waste powder quality assessment value of the fire extinguisher.

[0018] Furthermore, the specific analysis method for the pressure holding time assessment value is as follows: obtain the pressure value of the current fire extinguisher at different time points, and the corresponding pressure holding pressure of the current fire extinguisher; obtain the minimum pressure holding pressure that can maintain the normal use of the fire extinguisher through the pressure holding pressure of the fire extinguisher; divide the difference between the pressure value at different time points and the minimum pressure holding pressure of the fire extinguisher by the difference between the pressure values ​​at two adjacent time points to obtain the pressure holding time assessment value; and determine the time that the fire extinguisher can be used normally based on the pressure holding time assessment value.

[0019] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0020] 1. The fire extinguisher detection module processes the information collected by the fire extinguisher information acquisition module to obtain the fire extinguisher anomaly assessment value. If the fire extinguisher anomaly assessment value is greater than the specified threshold, the fire extinguisher is judged to be unqualified. For fire extinguishers whose anomaly assessment value is not greater than the specified threshold, the fire extinguisher intelligent identification method is used to identify whether the fire extinguisher is qualified. This enables real-time and accurate data analysis of fire extinguishers to detect unqualified fire extinguishers, thereby achieving rapid detection of fire extinguishers and effectively solving the problem of the inability to detect fire extinguishers in real time in the existing technology.

[0021] 2. The fire extinguisher maintenance module processes the information collected by the fire extinguisher information acquisition module to obtain the assessment value of the remaining extinguishing agent, thereby detecting the amount of extinguishing agent in the fire extinguisher in real time. This enables timely maintenance of fire extinguishers with low remaining extinguishing agent and replenishment of extinguishing agent.

[0022] 3. The information collected by the fire extinguisher information acquisition module is processed to obtain the fire extinguisher pressure assessment value, thereby determining whether the cylinder is damaged, and then the fire extinguishing agent in the damaged cylinder is disposed of. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of an Internet-based vehicle-mounted mobile fire extinguisher maintenance system provided in an embodiment of this application. Detailed Implementation

[0024] This application provides an internet-based vehicle-mounted mobile fire extinguisher maintenance system, solving the problem of the inability to monitor fire extinguishers in real time in existing technologies. It obtains an anomaly assessment value by real-time monitoring of the fire extinguisher's temperature and pressure. If the anomaly assessment value exceeds a specified threshold, the fire extinguisher is considered unqualified. For fire extinguishers with anomaly assessment values ​​below the specified threshold, a smart fire extinguisher identification method is used to determine their qualification. The remaining extinguishing agent quantity is used as an indicator of extinguishing dosage, the waste powder quality is evaluated, and the pressure is used to determine if the cylinder is damaged. If the cylinder is damaged, maintenance personnel are notified to affix a scrap label to the damaged fire extinguisher; if the cylinder is undamaged, no action is taken. The normal operating time of the fire extinguisher is determined by the pressure holding time assessment value, thus achieving rapid fire extinguisher detection.

[0025] The technical solution in this application embodiment aims to solve the problem of the inability to detect fire extinguishers in real time. The overall approach is as follows:

[0026] The fire extinguisher information acquisition module collects equipment and monitoring information from fire extinguishers. The fire extinguisher detection module processes the information collected by the fire extinguisher information acquisition module to derive anomaly assessment values. If the anomaly assessment value exceeds a specified threshold, the fire extinguisher is deemed unqualified. For fire extinguishers with anomaly assessment values ​​below the specified threshold, a smart fire extinguisher identification method is used to determine their qualification. The fire extinguisher maintenance module processes the information collected by the fire extinguisher information acquisition module to derive the remaining extinguishing agent assessment value. For fire extinguishers with remaining extinguishing agent assessment values ​​below the specified threshold, extinguishing agent is added. The fire extinguisher inspection module... The testing module records any non-compliant fire extinguishers and notifies maintenance personnel to remove the powder. Information collected by the fire extinguisher information acquisition module is processed to derive waste powder quality assessment, fire extinguisher pressure assessment, and pressure holding time assessment. The waste powder quality assessment evaluates the quality of the waste powder, and the fire extinguisher pressure assessment determines if the cylinder is damaged. If the cylinder is damaged, maintenance personnel are notified to affix a scrap label to the damaged fire extinguisher; if the cylinder is undamaged, no action is taken. The pressure holding time assessment determines the normal operating time of the fire extinguisher, and maintenance personnel are notified to dry the fire extinguisher and refill it with extinguishing agent, achieving rapid testing of the fire extinguishers.

[0027] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0028] like Figure 1The diagram shown is a structural schematic of an internet-based vehicle-mounted mobile fire extinguisher maintenance system provided in this application embodiment. The system includes: a fire extinguisher information acquisition module, a fire extinguisher detection module, and a fire extinguisher maintenance module. The fire extinguisher information acquisition module collects equipment information and monitoring information of the fire extinguishers. The fire extinguisher detection module processes the information collected by the fire extinguisher information acquisition module to obtain an anomaly assessment value. If the anomaly assessment value exceeds a specified threshold, the fire extinguisher is deemed unqualified. For fire extinguishers whose anomaly assessment values ​​do not exceed the specified threshold, an intelligent fire extinguisher identification method is used to determine whether the fire extinguisher is qualified. The fire extinguisher maintenance module is used to process the information collected by the fire extinguisher information acquisition module. The information obtained is processed to obtain the assessment value of the remaining extinguishing agent. For fire extinguishers with an assessment value of the remaining extinguishing agent below the specified threshold, extinguishing agent is added. Fire extinguishers that fail the test by the fire extinguisher detection module are recorded and maintenance personnel are notified to remove the powder. The information collected by the fire extinguisher information acquisition module is processed to obtain the assessment value of waste powder quality, fire extinguisher pressure, and pressure holding time. The waste powder quality is evaluated by the waste powder quality assessment value. The fire extinguisher pressure assessment value is used to determine whether the cylinder is damaged. If the cylinder is found to be damaged, maintenance personnel are notified to affix a scrap label to the fire extinguisher with the damaged cylinder. If the cylinder is found to be undamaged, no action is taken. The normal use time of the fire extinguisher is determined by the pressure holding time assessment value. Maintenance personnel are notified to dry the fire extinguisher and refill the extinguishing agent.

[0029] In this embodiment, the specific process of powder extraction includes: turning on the red switch of the air compressor and observing the pressure gauge reading at 8 kPa; turning on the vacuum start button of the pressure testing and drying integrated machine; clicking on the industrial control screen of the maintenance integrated machine to enter the canning interface; pressing the recycling button; opening the powder extraction rod pipeline valve; observing whether the powder extraction rod has vacuum suction; inserting the hose of the fire extinguisher to be repaired into the powder extraction rod; placing it stably; pulling out the safety pin of the fire extinguisher and pressing the pressure handle; spraying the powder in the bottle into the powder extraction rod; recycling it to the waste powder bin; drying the fire extinguisher using the pressure testing and drying integrated machine; after drying, inserting the humidity sensor into the bottle; and only when its reading stabilizes and reaches below 50% is it considered qualified.

[0030] Furthermore, the equipment information for fire extinguishers includes: the type of fire extinguisher, the model of the fire extinguisher, the components of the fire extinguisher as indicated on the fire extinguisher nameplate and the corresponding percentage of each component, and the corresponding holding pressure of the fire extinguisher. The monitoring information for fire extinguishers includes: fire extinguisher temperature, fire extinguishing dosage, pressure value, water level value, and the components of the fire extinguisher as indicated on the fire extinguisher nameplate in the waste powder and the corresponding percentage of each component.

[0031] Furthermore, the specific analysis method for the abnormal assessment value of fire extinguishers is as follows: real-time acquisition of the pressure values ​​of various fire extinguishers of the same type at the same time point, calculation of the average pressure value of different models of fire extinguishers at the same time point by the average summation method, and the abnormal assessment value of fire extinguishers is obtained by taking the difference between the pressure value of the fire extinguisher at the same time point and the average pressure value, as well as the temperature assessment value.

[0032] In this embodiment, the specific analysis formula for the fire extinguisher anomaly assessment value is as follows: This represents the fire extinguisher anomaly assessment value of the nth fire extinguisher corresponding to fire extinguisher type m at time point p, where k1 and k2 represent the temperature assessment value and the internal pressure value of the fire extinguisher, respectively. The weight it occupies in the middle.

[0033] Furthermore, the specific analysis method for temperature assessment values ​​is as follows: obtain the temperature of the fire extinguisher at different time points; at the same time point, obtain the temperature of each fire extinguisher of the same type and calculate the average temperature value; obtain the temperature assessment value based on the temperature of the fire extinguisher at different time points and the average value; if the temperature assessment value is greater than the specified threshold, it indicates that the fire extinguisher needs to be repaired; if the temperature assessment value is not greater than the specified threshold, no operation is required.

[0034] In this embodiment, the specific analytical formula for the temperature assessment value is as follows: Where, This represents the temperature rating value of the nth fire extinguisher corresponding to fire extinguisher type m at time point p. α represents the temperature of the nth fire extinguisher corresponding to the fire extinguisher type numbered m at time point p. m The correction factor represents the temperature rating value of fire extinguisher type m, and e represents the natural constant.

[0035] Furthermore, the specific analysis process of the intelligent fire extinguisher identification method is as follows: Input the pressure value and the date of manufacture of the fire extinguisher. Train the fire extinguisher using the pressure value and date of manufacture, determine whether the fire extinguisher is qualified, and affix a qualified or unqualified label as the training set. Obtain the pressure value and date of manufacture of the fire extinguisher to be tested. By using the pressure value of the fire extinguisher as the horizontal axis and the date of manufacture as the vertical axis, calculate the proximity distance value between the pressure value and date of manufacture of the fire extinguisher to be tested and the pressure values ​​and date of manufacture of several adjacent fire extinguishers in the training set according to the proximity distance formula. Select the minimum proximity distance value from all proximity distance values, and use the corresponding qualified or unqualified label as the qualified or unqualified label of the fire extinguisher to be tested.

[0036] In this embodiment, the fire extinguisher to be tested is placed horizontally into the smart testing box with the internal fixing slot, ensuring that the pressure gauge of the fire extinguisher faces upward. On the IoT device platform, click on the dial recognition to enter the visual inspection page, select the number of the fire extinguisher to be tested, and select to take a picture on the IoT platform. The IoT device platform will automatically identify whether the fire extinguisher to be tested is qualified according to the fire extinguisher intelligent identification method.

[0037] Furthermore, the specific analysis method of the proximity distance formula is as follows: subtract the x-coordinate of the fire extinguisher to be detected from the x-coordinate of the fire extinguisher adjacent to it in the training set, and obtain the x-coordinate distance. Subtract the y-coordinate of the fire extinguisher to be detected from the y-coordinate of the fire extinguisher adjacent to it in the training set, and obtain the y-coordinate distance. Add the square root of the square of the x-coordinate distance to the square of the y-coordinate distance to obtain the proximity distance value.

[0038] In this embodiment, the adjacent boundary is determined based on a given K value in the algorithm. If the K value is 3, it means that the coordinates of the three fire extinguishers in the training set that are closest to the coordinates of the fire extinguisher to be detected are selected. Where, This represents the proximity distance between the nth fire extinguisher (type m) and the fire extinguisher (type u) in the training set at time point p. Let u represent the fire extinguisher pressure value with index u in the training set, E represent the abbreviation for training, and u = 1, 2, ..., K, where K represents a value given in the algorithm. This represents the distance from the production date of the nth fire extinguisher corresponding to the fire extinguisher type numbered m at time point p. This represents the date of manufacture of the fire extinguisher with the number u in the training set.

[0039] Furthermore, the specific analysis method for assessing the remaining amount of extinguishing agent is as follows: Obtain the extinguishing agent dosage, type, and model of the fire extinguisher at different time points. Determine the weight of the fire extinguisher container based on its type and model. Using the extinguishing agent dosage and container weight at different time points, derive the assessment value of the remaining extinguishing agent. If the assessment value is lower than a specified threshold, the fire extinguisher is repaired; otherwise, no repair is performed. Construct an analysis formula for the remaining extinguishing agent value, and derive the assessment value based on this formula. The analysis formula for the remaining extinguishing agent value is as follows: Where, Let p represent the residual extinguishing agent value of the nth fire extinguisher of the i-th type of fire extinguisher (numbered m) at time point p. Here, m represents the type of fire extinguisher (m = 1, 2, 3, ..., m0), m0 represents the total number of fire extinguisher types, n represents the number of fire extinguishers (n = 1, 2, 3, ..., n0), n0 represents the total number of fire extinguishers, and p represents the time point (p = 1, 2, 3, ..., q), q represents the total number of time points. This represents the remaining extinguishing capacity of the nth fire extinguisher corresponding to fire extinguisher type m at time point p. This represents the weight of the container of the i-th type of fire extinguisher corresponding to the type of fire extinguisher numbered m, where i represents the type of fire extinguisher, i = 1, 2, 3, ..., i0, and i0 represents the total number of fire extinguisher types.

[0040] Furthermore, the specific analysis method for the fire extinguisher pressure rating is as follows: Instruct maintenance personnel to pressurize the fire extinguisher and obtain the pressure and water level values ​​at different time points. Based on the pressure and water level values, derive the fire extinguisher pressure rating. If the fire extinguisher pressure rating is zero, it indicates that the fire extinguisher cylinder is damaged. If the fire extinguisher pressure rating is one, it indicates that the fire extinguisher cylinder is normal.

[0041] In this embodiment, the fire extinguisher is pressure tested. Before the test, the pressure relief valve is closed, and the fire extinguisher is pressurized using a pressure testing and drying integrated machine. After the water pressure reaches 2.1 MPa, the equipment stops pressurizing. If the pressure reading drops or the cylinder leaks, it indicates that the fire extinguisher cylinder is damaged. The specific analysis formula for the fire extinguisher pressure rating is as follows: Where, This represents the pressure rating value of the nth fire extinguisher corresponding to fire extinguisher type m at time point p. This represents the water pressure of the nth fire extinguisher corresponding to the fire extinguisher type numbered m at time point p. This represents the amount of water in the tank of the nth fire extinguisher corresponding to the type of fire extinguisher numbered m at time point p.

[0042] Furthermore, the specific analysis method for the waste powder quality assessment value is as follows: Obtain the components of the fire extinguisher as indicated on the fire extinguisher nameplate and their corresponding proportions; number each component as indicated on the fire extinguisher nameplate; detect the components as indicated on the fire extinguisher nameplate and their corresponding proportions in the waste powder; compare the content of each component as indicated on the fire extinguisher nameplate with the corresponding content of each component in the waste powder to obtain the waste powder quality assessment value; construct the waste powder quality assessment value analysis formula; and derive the waste powder quality assessment value based on this formula. The waste powder quality assessment value analysis formula is as follows: In the formula, φ mnLet f represent the waste powder quality assessment value of the nth fire extinguisher corresponding to fire extinguisher type m, and let f represent the component numbers of the fire extinguisher as indicated on the fire extinguisher nameplate, f = 1, 2, 3, ..., f0, where f0 represents the total number of component numbers of the fire extinguisher as indicated on the fire extinguisher nameplate. This represents the percentage of the f-th component in the waste powder of the nth fire extinguisher corresponding to the fire extinguisher type numbered m. This represents the percentage of the f-th component listed on the nameplate of the nth fire extinguisher corresponding to fire extinguisher type m. This indicates the weight of the f-th component listed on the nameplate of the nth fire extinguisher corresponding to the fire extinguisher type numbered m in the waste powder quality assessment value of the fire extinguisher.

[0043] Furthermore, the specific analysis method for the pressure holding time assessment value is as follows: obtain the pressure value of the current fire extinguisher at different time points, as well as the corresponding pressure holding pressure of the current fire extinguisher. Calculate the minimum pressure holding pressure that can maintain the normal use of the fire extinguisher through the pressure holding pressure of the fire extinguisher. Divide the difference between the pressure value at different time points and the minimum pressure holding pressure of the fire extinguisher by the difference between the pressure values ​​at two adjacent time points to obtain the pressure holding time assessment value. Calculate the time that the fire extinguisher can be used normally based on the pressure holding time assessment value.

[0044] In this embodiment, the specific analytical formula for the pressure holding time evaluation value is as follows: In the formula, This represents the pressure holding time rating value of the nth fire extinguisher corresponding to fire extinguisher type m at time point p. This indicates the minimum holding pressure corresponding to the type of fire extinguisher numbered m.

[0045] The technical solutions in the above-described embodiments of this application have at least the following technical effects or advantages: Compared with the mobile fire extinguisher repair system and its application disclosed in CN112957646A, the embodiments of this application use a fire extinguisher detection module to process the information collected by the fire extinguisher information acquisition module to obtain a fire extinguisher abnormality assessment value. If the fire extinguisher abnormality assessment value is greater than a specified threshold, the fire extinguisher is judged to be unqualified. For fire extinguishers whose abnormality assessment value is not greater than the specified threshold, the fire extinguisher is identified as qualified by a fire extinguisher intelligent identification method, thereby realizing real-time accurate data analysis of fire extinguishers to detect unqualified fire extinguishers, and thus realizing rapid detection of fire extinguishers; Compared with the fire extinguisher repair device disclosed in CN214130049U, the embodiments of this application use a fire extinguisher repair module to process the information collected by the fire extinguisher information acquisition module to obtain a fire extinguishing agent remaining quantity assessment value, thereby detecting the fire extinguishing agent dosage in the fire extinguisher in real time, and thus realizing timely repair of fire extinguishers with low remaining fire extinguishing agent dosage and increasing the fire extinguishing agent.

[0046] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0047] This invention is described with reference to flowchart illustrations and / or block diagrams of systems, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0048] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0049] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0050] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0051] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. An internet-based vehicle-mounted mobile fire extinguisher maintenance system, characterized in that: Includes a fire extinguisher information collection module, a fire extinguisher detection module, and a fire extinguisher maintenance module; The fire extinguisher information acquisition module is used to collect equipment information and monitoring information of fire extinguishers. The fire extinguisher detection module is used to process the information collected by the fire extinguisher information acquisition module to obtain the fire extinguisher abnormality assessment value. If the fire extinguisher abnormality assessment value is greater than the specified threshold, the fire extinguisher is judged to be unqualified. For fire extinguishers whose fire extinguisher abnormality assessment value is not greater than the specified threshold, the fire extinguisher is identified as qualified by the fire extinguisher intelligent identification method. The fire extinguisher maintenance module processes the information collected by the fire extinguisher information acquisition module to obtain the remaining extinguishing agent assessment value. For fire extinguishers with a remaining extinguishing agent assessment value below a specified threshold, extinguishing agent is added. For fire extinguishers detected as unqualified by the fire extinguisher detection module, records are made and maintenance personnel are notified to remove the extinguishing agent. The module also processes the information collected by the fire extinguisher information acquisition module to obtain waste powder quality assessment value, fire extinguisher pressure assessment value, and pressure holding time assessment value. The waste powder quality assessment value is used to evaluate the quality of the waste powder. The fire extinguisher pressure assessment value is used to determine if the cylinder is damaged. If the cylinder is damaged, maintenance personnel are notified to affix a scrap label to the damaged fire extinguisher. If the cylinder is not damaged, no action is taken. The pressure holding time assessment value is used to determine the normal operating time of the fire extinguisher, and maintenance personnel are notified to dry the fire extinguisher and refill the extinguishing agent. The specific analytical method for the quality assessment value of the waste powder is as follows: Obtain the components of the fire extinguisher and their respective proportions as indicated on the fire extinguisher's nameplate; Number each component of the fire extinguisher as indicated on its nameplate; The components of the fire extinguisher as indicated on the fire extinguisher nameplate and the corresponding proportions of each component were detected in the waste powder. By comparing the content of each component of the fire extinguisher as indicated on the fire extinguisher's nameplate with the corresponding content of each component in the waste powder, the quality assessment value of the waste powder is obtained. A formula for analyzing the quality assessment value of waste powder is constructed, and the quality assessment value of waste powder is obtained based on the analysis. The formula for analyzing the quality assessment value of the waste powder is as follows: ， Where, Indicates the number is The corresponding type of fire extinguisher The quality assessment value of waste powder from a fire extinguisher. This indicates the component numbers of the fire extinguisher as marked on the fire extinguisher's nameplate. , This indicates the total number of component numbers of the fire extinguisher as indicated on its nameplate. Indicates the number is The corresponding type of fire extinguisher The first batch of fire extinguisher waste powder The corresponding proportions of each component Indicates the number is The corresponding type of fire extinguisher The nameplate of the fire extinguisher indicates the number The corresponding proportions of each component Indicates the number is The corresponding type of fire extinguisher The nameplate of the fire extinguisher indicates the number The weight of each component in the quality assessment value of waste powder from fire extinguishers.

2. The Internet-based vehicle-mounted mobile fire extinguisher maintenance system as described in claim 1, characterized in that, The equipment information of the fire extinguisher includes: The type of fire extinguisher, the model of the fire extinguisher, the components of the fire extinguisher as indicated on the fire extinguisher nameplate and the corresponding proportions of each component, and the pressure holding pressure of the fire extinguisher; The monitoring information for the fire extinguisher includes: fire extinguisher temperature, fire extinguishing dosage, pressure value, water level value, and the components in the waste powder as indicated on the fire extinguisher nameplate, as well as the corresponding percentage of each component.

3. The Internet-based vehicle-mounted mobile fire extinguisher maintenance system as described in claim 1, characterized in that, The specific analysis method for the abnormal assessment value of the fire extinguisher is as follows: Real-time acquisition of pressure values ​​of various fire extinguishers of the same type at the same time point; The average pressure value of different types of fire extinguishers at the same time is calculated by the average summation method. The abnormality assessment value of the fire extinguisher is then calculated by the difference between the pressure value of the fire extinguisher at the same time point and the average pressure value, as well as the temperature assessment value.

4. The Internet-based vehicle-mounted mobile fire extinguisher maintenance system as described in claim 3, characterized in that, The specific analysis method for the temperature evaluation value is as follows: Obtain the temperature of the fire extinguisher at different points in time; At the same time point, obtain the temperature of each fire extinguisher of the same type and calculate the average temperature value; The temperature assessment value is obtained by measuring the temperature of the fire extinguisher at different times and the average value. If the temperature assessment value is greater than the specified threshold, it means that the fire extinguisher needs to be repaired. If the temperature assessment value is not greater than the specified threshold, no operation is required.

5. The Internet-based vehicle-mounted mobile fire extinguisher maintenance system as described in claim 1, characterized in that, The specific analysis process of the fire extinguisher intelligent identification method is as follows: Input the pressure value and the date of manufacture of the fire extinguisher, train the fire extinguisher based on the pressure value and the date of manufacture, determine whether the fire extinguisher is qualified, and label it as qualified or unqualified, as a training set; Obtain the pressure value and the date of manufacture of the fire extinguisher to be tested. Plot the pressure value as the x-axis and the date of manufacture as the y-axis. Calculate the proximity distance value by comparing the pressure value and date of manufacture of the fire extinguisher to be tested with the pressure values ​​and date of manufacture of several adjacent fire extinguishers in the training set. Select the minimum proximity distance value from all proximity distance values ​​and use the corresponding pass / fail label as the pass / fail label for the fire extinguisher to be tested.

6. The Internet-based vehicle-mounted mobile fire extinguisher maintenance system as described in claim 5, characterized in that, The specific analysis method for the nearest neighbor distance formula is as follows: Subtract the x-coordinates of the fire extinguishers adjacent to it in the training set from the x-coordinate of the fire extinguisher to be tested, and use this as the x-coordinate distance. Subtract the y-coordinates of the fire extinguishers adjacent to it in the training set from the y-coordinate of the fire extinguisher to be tested, and use this as the y-coordinate distance. Add the square root of the square of the x-coordinate distance to the square of the y-coordinate distance to obtain the nearest neighbor distance value.

7. The Internet-based vehicle-mounted mobile fire extinguisher maintenance system as described in claim 3, characterized in that, The specific analytical method for assessing the remaining amount of extinguishing agent is as follows: Obtain the extinguishing dosage, type, and model of the fire extinguisher at different time points; The weight of the fire extinguisher container is determined based on the type and model of the fire extinguisher. The remaining amount of extinguishing agent is assessed by measuring the extinguishing agent dosage and the weight of the extinguishing agent container at different time points. If the fire extinguisher has a residual extinguishing agent value below the specified threshold, the fire extinguisher shall be repaired. If the fire extinguisher's residual extinguishing agent level is not lower than the specified threshold, it shall not be operated. A formula for assessing the remaining amount of extinguishing agent is constructed, and the assessment value of the remaining amount of extinguishing agent is obtained based on the analysis. The formula for evaluating the remaining amount of extinguishing agent is as follows: ， Where, Indicates the number is The first type of fire extinguisher The first model corresponding to A fire extinguisher Assessment value of remaining extinguishing agent at a given time point. Indicates the type of fire extinguisher. , This indicates the total number of types of fire extinguishers. The number indicating the number of fire extinguishers. , The total number of fire extinguishers. A number representing a specific point in time. , This represents the total number of points in time. Indicates the number is The corresponding type of fire extinguisher A fire extinguisher Remaining extinguishing dose at the specified time point Indicates the number is The corresponding type of fire extinguisher The weight of the container for each type of fire extinguisher. Indicates the model of the fire extinguisher. , This indicates the total number of fire extinguisher models.

8. The Internet-based vehicle-mounted mobile fire extinguisher maintenance system as described in claim 3, characterized in that, The specific analysis method for the fire extinguisher pressure rating value is as follows: Notify maintenance personnel to pressurize the fire extinguisher, obtain the pressure and water level values ​​of the fire extinguisher at different time points, and derive the fire extinguisher pressure rating value based on the pressure and water level values. If the pressure rating of a fire extinguisher is zero, it indicates that the fire extinguisher cylinder is damaged. If the pressure rating of the fire extinguisher is equal to one, it indicates that the fire extinguisher cylinder is normal.

9. The Internet-based vehicle-mounted mobile fire extinguisher maintenance system as described in claim 3, characterized in that, The specific analysis method for the pressure holding time evaluation value is as follows: Obtain the pressure value of the current fire extinguisher at different time points, as well as the corresponding holding pressure of the current fire extinguisher; The minimum holding pressure required to maintain the normal use of a fire extinguisher is determined by its holding pressure. The pressure holding time assessment value is obtained by dividing the difference between the pressure value at different time points and the minimum holding pressure of the fire extinguisher by the difference between the pressure values ​​at two adjacent time points. The time it takes for a fire extinguisher to function normally can be determined based on the pressure holding time.

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