Inverter-based fire fighting monitoring method, system and equipment and storage medium

Abstract

The embodiment of the invention provides an inverter-based fire fighting monitoring method, system and equipment and a medium, and the method comprises the steps: obtaining a first temperature value of each inverter in a machine room through a temperature sensor, and enabling each inverter to be correspondingly provided with a temperature sensor; when the first temperature value is larger than a preset value, a first video frame is extracted from video images obtained by video monitoring equipment according to a first time interval, and each piece of video monitoring equipment monitors at least one inverter; according to the smoke and / or open fire image in the first video frame and the second temperature value corresponding to the first video frame, the fire type of the inverter is determined, and the fire type is used for indicating that the fire is a smoke type and / or an open fire type; outputting a fire alarm according to the fire type; the system can effectively monitor the type of a fire in the inverter, intelligently judges whether an open fire exists or not, outputs different fire alarms, and takes different measures. And the effect of accurately monitoring the inverter is achieved.

Description

Technical Field

[0001] The present application relates to the field of inverter fire safety technology, and in particular to an inverter-based fire monitoring method, system, device and storage medium. Background Art

[0002] The photovoltaic plant area is large and has a large number of inverters. Since there are complex and numerous wires, electrical components, electrical equipment, etc. inside the inverter and between multiple inverters, fire and other accidents are prone to occur. Therefore, a fire monitoring system needs to be installed in the photovoltaic plant to monitor fire safety.

[0003] However, due to the characteristics of photovoltaic plants and the complex structure of inverters, the fire monitoring system in the plant cannot effectively monitor fires, that is, it cannot accurately monitor a fire accident in a certain inverter and then take corresponding fire prevention measures.

[0004] Usually, setting up fire monitoring equipment on the inverter can accurately monitor each inverter, but how to effectively monitor the types of fires occurring in the inverter, such as smoke without open flames, open flames, etc., and then take appropriate firefighting measures has become an important issue. Summary of the invention

[0005] The embodiments of the present application provide a fire monitoring method, system, device and storage medium based on an inverter, which are used to solve the technical problems in the prior art that the fire in the inverter cannot be effectively monitored, the fire type cannot be intelligently judged, and appropriate fire measures cannot be taken, so as to achieve the effect of being able to effectively monitor the type of fire accidents occurring inside the inverter, take appropriate fire measures, and save fire resources and human resources.

[0006] In a first aspect, an embodiment of the present application provides a fire monitoring method based on an inverter, the method comprising:

[0007] Acquire a first temperature value of each inverter in the computer room through a temperature sensor, wherein each inverter is correspondingly provided with a temperature sensor;

[0008] When the first temperature value is greater than a preset value, extracting a first video frame from a video image acquired by a video monitoring device at a first time interval, wherein each video monitoring device monitors at least one inverter;

[0009] Determine the fire type of the inverter according to the smoke and / or open flame image in the first video frame and the second temperature value corresponding to the first video frame, wherein the fire type is used to indicate that the fire is a smoke type and / or an open flame type;

[0010] According to the fire type, a fire alarm is output.

[0011] In a possible implementation manner, determining the fire type of the inverter according to the smoke and / or open flame image in the first video frame and the temperature value corresponding to each first video frame includes:

[0012] When a first video frame having an image of smoke and / or open flame is detected, obtaining a monitoring time of the first video frame, and obtaining a second temperature value according to the monitoring time;

[0013] If the second temperature value is greater than the first temperature value, the fire type of the inverter is determined based on the smoke and / or open flame image.

[0014] In a possible implementation, the method further includes:

[0015] When the first temperature value is less than a preset value, extracting a second video frame from the video image acquired by the video surveillance device according to a second time interval, wherein the second time interval is greater than the first time interval, and the higher the first temperature value is, the smaller the first time interval is;

[0016] Perform image analysis on the second video frame to determine whether smoke and / or open flame images exist.

[0017] In a possible implementation manner, before outputting the fire alarm, the method further includes:

[0018] Acquire the identifier of the temperature sensor, and acquire the position of the inverter according to a mapping relationship between the identifier of the temperature sensor and the position of the inverter;

[0019] The outputting of the fire alarm includes: outputting the fire type and the location of the inverter.

[0020] In a possible implementation manner, after outputting a fire alarm according to the fire type, the method further includes:

[0021] Extracting a third video frame from the video image acquired by the video surveillance device at a third time interval, wherein the third time interval is shorter than the first time interval;

[0022] Dynamically draw a fire map according to the smoke and / or open flame image in the third video frame, wherein the position of each inverter is marked in the fire map, and the fire area of ​​the smoke and / or open flame is drawn in different colors;

[0023] The fire map is dynamically displayed.

[0024] In a possible implementation manner, after dynamically drawing the fire map, the method further includes:

[0025] Obtain the fire area of ​​smoke and / or open fire and the drawing time for each drawing;

[0026] According to the drawing area and the drawing time, obtaining the fire spreading speed and spreading direction;

[0027] dynamically adjusting the alarm level of the fire alarm according to the diffusion rate;

[0028] According to the diffusion direction, the operation of other inverters is controlled.

[0029] In a possible implementation, dynamically drawing a fire map according to the smoke and / or open flame image in the third video frame includes:

[0030] According to the acquisition time of the third video frame, obtaining a third temperature at a corresponding time;

[0031] Determining the depth of the drawn color according to the third temperature, wherein the higher the third temperature is, the deeper the depth of the corresponding color is;

[0032] A fire map is dynamically drawn according to the depth of the drawing color.

[0033] In a second aspect, an embodiment of the present application provides a fire monitoring system based on an inverter, the system comprising: an acquisition module, a processing module, a judgment module and an output module;

[0034] The acquisition module is used to acquire a first temperature value of each inverter in the computer room through a temperature sensor, wherein each inverter is correspondingly provided with a temperature sensor;

[0035] The processing module is configured to extract a first video frame from a video image acquired by a video monitoring device at a first time interval when the first temperature value is greater than a preset value, wherein each video monitoring device monitors at least one inverter;

[0036] The judgment module is used to determine the fire type of the inverter according to the smoke and / or open flame image in the first video frame and the second temperature value corresponding to the first video frame, wherein the fire type is used to indicate that the fire is a smoke type and / or an open flame type;

[0037] The output module is used to output a fire alarm according to the fire type.

[0038] In a third aspect, an embodiment of the present application provides a fire monitoring device based on an inverter, comprising: a memory, and a processor;

[0039] The memory stores computer-executable instructions;

[0040] The processor executes the computer-executable instructions stored in the memory, so that the processor executes the first aspect as described above, and / or various possible implementations of the first aspect.

[0041] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, in which computer-executable instructions are stored. When the computer-executable instructions are executed by a processor, they are used to implement the first aspect above, and / or various possible implementations of the first aspect.

[0042] In a fifth aspect, an embodiment of the present application provides a computer program product, including a computer program, which, when executed by a processor, implements the first aspect above, and / or various possible implementations of the first aspect.

[0043] The embodiments of the present application provide a fire monitoring method, system, device, storage medium and program product based on an inverter. The method obtains a first temperature value of each inverter in a computer room through a temperature sensor, wherein each inverter is correspondingly provided with a temperature sensor; when the first temperature value is greater than a preset value, a first video frame is extracted from a video image obtained by a video monitoring device at a first time interval, wherein each video monitoring device monitors at least one inverter; according to the smoke and / or open flame image in the first video frame and the second temperature value corresponding to the first video frame, the fire type of the inverter is determined, and the fire type is used to indicate that the fire is a smoke type and / or an open flame type; according to the fire type, a fire alarm is output; the method provided in the embodiments of the present application can effectively monitor the fire type in the inverter, intelligently determine whether there is an open flame fire, and then output different fire alarms and take different measures; the technical effect of accurately monitoring the inverter is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0045] Figure 1 A schematic diagram of a fire monitoring scenario based on an inverter provided in an embodiment of the present application;

[0046] Figure 2 A flowchart of a fire monitoring method based on an inverter provided in an embodiment of the present application Figure 1 ;

[0047] Figure 3 A flowchart of a fire monitoring method based on an inverter provided in an embodiment of the present application Figure 2 ;

[0048] Figure 4 A flowchart of a fire monitoring method based on an inverter provided in an embodiment of the present application Figure 3 ;

[0049] Figure 5 A schematic diagram of the structure of a fire monitoring system based on an inverter provided in an embodiment of the present application;

[0050] Figure 6 A schematic diagram of the structure of an inverter-based fire monitoring device provided in an embodiment of the present application.

[0051] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0052] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0053] First, the terms involved in the embodiments of the present application are explained:

[0054] Fire information: In the embodiment of the present application, fire information refers to the combustion smoke generated when a fire occurs inside the inverter, the combustion temperature with or without an open flame, and the brightness of the fire when an open flame is generated.

[0055] Due to the characteristics of photovoltaic plants and the complex structure of inverters, the fire monitoring system in the plant cannot effectively monitor fires, that is, it cannot accurately monitor fire accidents occurring in a certain inverter and then take corresponding fire prevention measures.

[0056] Figure 1 A scene diagram of a fire monitoring method based on an inverter provided in an embodiment of the present application, such as Figure 1 As shown, in order to avoid the existence of multiple inverters 101, inverter 102, inverter 103... in the photovoltaic plant 10, a fire detection device is installed on each inverter. When a fire accident occurs, the fire detection device detects the corresponding signal and transmits it to the fire monitoring system 11, and takes corresponding fire measures, fire alarms, etc.

[0057] In combination with the above scenario, it can be seen that in the prior art, by setting fire detection equipment on each inverter to accurately monitor the fire fighting situation of the inverter, there is a technical problem that if an inverter only has internal circuits smoking but no open flames, and the temperature does not reach the temperature that produces open flames, fire fighting measures such as fire extinguishing will waste fire fighting resources.

[0058] An inverter-based fire protection monitoring method provided in an embodiment of the present application first determines that a fire risk may occur when a first temperature value of the inverter is greater than a preset value, and the higher the first temperature value, the more frequently video frames are extracted in the corresponding monitoring video, so as to obtain the changes in the fire in a timely manner, and then, based on the smoke and / or open flame images in the video and combined with the correction of the second temperature value, the fire type of the inverter is determined, so that the inverter can be accurately and quickly monitored.

[0059] The technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems are described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0060] Figure 2 A flowchart of a fire monitoring method based on an inverter provided in this application Figure 1 ,like Figure 2 As shown, the method includes:

[0061] S101. Obtain a first temperature value of each inverter in a computer room through a temperature sensor, wherein each inverter is correspondingly provided with a temperature sensor.

[0062] The first temperature value is the temperature value measured by the temperature sensor on the inverter. Since the inverter generates a certain amount of heat during normal operation, the temperature sensor on the inverter detects the temperature value of the heat. Since the heat generated when the inverter is running is uneven, temperature sensors can be set at multiple positions on the inverter to obtain the first temperature value detected by each temperature sensor. There are multiple inverters in the computer room, and each inverter will be set with a corresponding temperature sensor. Each temperature sensor detects the first temperature value of the corresponding inverter. Those skilled in the art can understand that the first temperature value is a temperature value detected in real time, which is dynamically changeable.

[0063] S102. When the first temperature value is greater than a preset value, extract a first video frame from a video image acquired by a video surveillance device according to a first time interval, wherein each video surveillance device monitors at least one inverter; and the higher the first temperature value is, the smaller the first time interval is.

[0064] The preset value is a temperature value input from the front end, which may be close to the temperature value of the various components in the inverter. The temperature value of the lowest combustion temperature is obtained through experiments or theories, such as the combustion temperature of the wires in the inverter reaching the combustion point, and the temperature value when the components in the inverter reach a temperature close to the combustion point; it can also be the maximum temperature value among the temperatures generated by the normal operation of the inverter.

[0065] The first time interval is specifically the time interval of extracting each video frame from the video image acquired by the monitoring device when the first temperature value is greater than the preset value. Moreover, the higher the first temperature value, the smaller the first time interval, that is, when the temperature value is high, the fire risk is greater, and it is necessary to analyze the data in time and provide a fire alarm.

[0066] By setting the preset value, the data processing quantity of the fire monitoring system can be guaranteed, the efficiency of monitoring can be improved, and the accuracy of monitoring detection can be improved; when the first temperature value is larger than the preset value, the time interval for extracting video frames is smaller, because the probability of fire is larger, and when the first temperature value is smaller than the preset value, the time interval for extracting video frames is smaller, because the probability of fire is smaller.

[0067] When one or more first temperature values ​​are obtained, the first temperature value is compared with a preset value. If the first temperature value is greater than the preset value, it indicates that the possibility of a fire is high. Therefore, the first video frame is extracted from the video image obtained from the video surveillance device at the first time interval. In this way, when the temperature is higher, the system will use a shorter time interval to extract video frames to ensure the accuracy of monitoring; when the temperature is lower, the system will use a longer time interval to extract video frames to ensure the high efficiency of data processing of the monitoring system and reduce the burden of system data processing.

[0068] S103. Determine a fire type of the inverter according to the smoke and / or open flame image in the first video frame and a second temperature value corresponding to the first video frame, where the fire type is used to indicate whether the fire is a smoke type and / or an open flame type.

[0069] The second temperature value may be the temperature of the inverter detected by the temperature sensor corresponding to the extraction moment when the smoke and / or open flame image in the first video frame is extracted. Those skilled in the art may understand that, since the temperature of the inverter is in a changing process, the real-time temperature value detected by the temperature sensor is acquired again based on the extraction moment of the smoke and / or open flame image in the video.

[0070] When the second temperature value fluctuates slightly or increases, the fire situation is further calibrated, indicating that the image obtained by the current video frame is relatively accurate. Therefore, based on the obtained first video frame, it is determined whether it is a smoke type fire or an open flame type fire.

[0071] S104. Output a fire alarm according to the fire type.

[0072] According to different fire types, the control terminal outputs different fire alarms, and performs subsequent corresponding fire fighting measures according to different fire alarms; for example, if the fire type is a smoke fire type, the control terminal issues a fire alarm A and performs fire fighting measure 1; if the fire type is an open flame fire type, the control terminal issues a fire alarm B and performs fire fighting measure 2; those skilled in the art can understand that fire alarm A, fire fighting measure 1, fire alarm B and fire fighting measure 2 are not specific indications, but are only for clear explanation and description, and are not to be understood as instructions or relative importance.

[0073] An inverter-based fire protection monitoring method provided in an embodiment of the present application obtains a first temperature value of each inverter in a computer room through a temperature sensor, wherein each inverter is correspondingly provided with a temperature sensor; when the first temperature value is greater than a preset value, a first video frame is extracted from a video image obtained by a video monitoring device at a first time interval, wherein each video monitoring device monitors at least one inverter; according to the smoke and / or open flame image in the first video frame and the second temperature value corresponding to the first video frame, the fire type of the inverter is determined, and the fire type is used to indicate that the fire is a smoke type and / or an open flame type; according to the fire type, a fire alarm is output; the method provided in the embodiment of the present application can effectively monitor the fire type in the inverter, intelligently determine whether there is an open flame fire, and then output different fire alarms and take different measures; the technical effect of accurately monitoring the inverter is achieved.

[0074] Figure 3 A flowchart of a fire monitoring method based on an inverter provided in this application Figure 2 ,like Figure 3 As shown, in this embodiment Figure 2 Based on the embodiment, a fire monitoring method based on an inverter is described in detail, and the method includes:

[0075] S301. Obtain a first temperature value of each inverter in a computer room through a temperature sensor.

[0076] S302: When the first temperature value is greater than a preset value, extract a first video frame from a video image acquired by a video surveillance device at a first time interval.

[0077] S303. When the first temperature value is less than a preset value, extract a second video frame from the video image acquired by the video surveillance device according to a second time interval, wherein the second time interval is greater than the first time interval, and the higher the first temperature value is, the smaller the first time interval is.

[0078] The second time interval is a time interval for extracting each video frame from a video image acquired by the monitoring device when the first temperature value is less than a preset value. The second time interval is relative to the first time interval, and the second time interval is greater than the first time interval.

[0079] One or more first temperature values ​​are obtained through step S301 and compared with corresponding preset values. If the first temperature value is greater than the preset value, step S302 is performed to extract a first video frame from the video image obtained by the video surveillance device using a first time interval, that is, a shorter time interval; if the first temperature value is less than the preset value, step S303 is performed to extract a second video frame from the video image obtained by the video surveillance device using a second time interval. The first video frame extracted at the first time interval can obtain fire information more clearly and accurately.

[0080] At the same time, the higher the first temperature value, the smaller the first time interval, so as to ensure that the monitoring system can perform efficient monitoring, and the lower the first temperature value, the larger the second time interval, the slower the speed of extracting video frames, so as to reduce and reduce the processing of system data volume.

[0081] S304: When the first video frame with smoke and / or open flame image is detected, the monitoring time of the first video frame is obtained, and the second temperature value is obtained according to the monitoring time.

[0082] The second temperature value is the temperature value obtained by detecting the first video frame with smoke or open flame image or the real-time detected temperature value; for example, in step S302, when the first temperature value is greater than the preset value, the first video frame is extracted according to the first time interval, and when the first video frame with smoke or open flame image is detected in the video frame, the monitoring time of the first video frame with smoke or open flame image is recorded, and according to the monitoring time, the temperature detected by the temperature sensor at the same monitoring time, the same inverter and the same position is synchronously obtained, that is, the second temperature value.

[0083] That is to say, the temperature detection and the monitoring video detection are carried out simultaneously. When the first video frame with smoke or open flame image is detected in the second video frame, the temperature value at the same time is obtained synchronously, making the monitoring detection judgment more accurate.

[0084] S305: If the second temperature value is greater than the first temperature value, determine the fire type of the inverter according to the smoke and / or open flame image.

[0085] After steps S301 to S305, multiple first temperature values ​​and possible one or more second temperature values ​​are obtained, and the first temperature values ​​and the second temperature values ​​are compared; it can be understood that the first temperature value and the second temperature value obtained at the same inverter or the same position are compared.

[0086] After comparison, if the second temperature value is greater than the first temperature value, it can be accurately determined that the probability of a fire in the inverter is very high; this is also to prevent the temperature from suddenly rising during the normal operation of the inverter, extracting the first video frame at the first time interval, and due to the dust generated on the inverter, etc., the first video frame with smoke and / or open flame images is mistakenly detected in the first video frame, and then misjudged as a fire; by obtaining the second temperature and comparing it with the first temperature value again, fire monitoring is made more accurate and misjudgments are reduced.

[0087] S306, obtaining an identifier of the temperature sensor, and obtaining the position of the inverter according to a mapping relationship between the identifier of the temperature sensor and the position of the inverter;

[0088] The identification of the temperature sensor includes marking the spatial coordinates of the temperature sensors installed on all inverters in the factory, specifically marking the location of each temperature sensor in the factory and the corresponding inverter; through steps S301 to S305, the fire situation is accurately monitored and detected, and then through step S306, it is possible to accurately determine which location and which inverter the fire occurred, and take corresponding measures.

[0089] In step S305, the fire type is determined, and the location of the inverter where the fire type is detected is determined by obtaining the identifier of the temperature sensor; any inverter in the factory and the fire type of the corresponding inverter are accurately monitored.

[0090] S307: Output the fire type and the location of the inverter.

[0091] Output fire alarm. Different fire types can output different fire alarms, as well as the location of the inverter where the fire occurred, so that different follow-up measures can be taken according to different fire types; for example: for fires with open flames, after the corresponding fire alarm is output, it is necessary to use fire extinguishing agents to extinguish the fire, and it is also necessary to replace the inverter or corresponding equipment components, etc.; for smoke fires, after the corresponding fire alarm is output, it is necessary to use fire extinguishing agents to extinguish the fire, and further check the equipment and components, etc.

[0092] An inverter-based fire monitoring method provided in an embodiment of the present application accurately determines the fire type of the inverter and accurately detects the location of the inverter where the fire occurs by obtaining the first temperature value and the second temperature value of the inverter, as well as the first video frame with smoke and / or open flame images and the identification of the temperature sensor. It also takes accurate and effective measures on the inverter.

[0093] Figure 4 A flowchart of a fire monitoring method based on an inverter provided in this application Figure 2 ,like Figure 4 As shown, in this embodiment Figure 2 Based on the embodiment, a fire monitoring method based on an inverter is described in detail after outputting a fire alarm according to the fire type. The method includes:

[0094] S401. Extract a third video frame from a video image acquired by a video surveillance device at a third time interval, wherein the third time interval is smaller than the first time interval.

[0095] The third time interval includes continuing to monitor the inverter at the fire location after the fire alarm is output, and extracting the time interval of the third video frame from the video image; after the alarm is output, in order to avoid untimely and incomplete fire rescue measures, the fire continues to spread and causes a more serious fire. The third time interval for extracting the third video frame is shorter than the first time interval, in order to detect and discover as quickly and accurately as possible whether the fire has spread, and take corresponding measures.

[0096] According to the smoke and / or open flame image in the third video frame, a fire map is dynamically drawn, in which the position of each inverter is marked, and the fire area of ​​the smoke and / or open flame is drawn in different colors, which is explained in more detail below.

[0097] S402: Acquire a third temperature at a corresponding time according to a capture time of a third video frame.

[0098] The third temperature may be different types of fires. After the alarm is output, the inverter at the fire location continues to be monitored. When the third video frame is extracted from the video image, the temperature detector on the inverter at the location detects and obtains the real-time temperature value of the corresponding time.

[0099] S403: Determine the depth of the drawn color according to the third temperature, wherein the higher the third temperature is, the deeper the depth of the corresponding color is.

[0100] The drawing color depth is determined according to the third temperature value. For example, the temperature may be increased from low to high, and the color may be increased from light to dark.

[0101] S404, dynamically drawing a fire map according to the depth of the drawing color.

[0102] According to the depth of the drawn color, a fire map is dynamically drawn, and the fire map can dynamically change according to the acquisition time of the third video frame and the level of the third temperature.

[0103] S405: Obtain the fire area of ​​smoke and / or open flame and the drawing time each time the drawing is performed.

[0104] A fire map is drawn according to the third video frame, and the fire area and drawing time of each fire map are obtained; the fire area includes the area of ​​the inverter where the same or different types of fires occur, and the drawing time includes obtaining the third temperature within the acquisition time of the third video frame after the alarm is output, and drawing the area of ​​the fire map.

[0105] S406: Obtain the fire spreading speed and spreading direction according to the drawing area and drawing time.

[0106] Based on the drawn area and drawing time, the speed and direction of fire spread can be judged and obtained, and the fire can be monitored in real time, thereby effectively reducing the possibility of fire spread.

[0107] S407. Dynamically adjust the alarm level of the fire alarm according to the diffusion speed.

[0108] S408. Control the operation of other inverters according to the diffusion direction.

[0109] According to step S406, subsequent steps S407 and S408 are performed to effectively prevent the fire alarm from being outputted. If measures are not taken in time or in place, the fire is prevented from continuing to spread and causing more serious consequences.

[0110] Figure 5 A schematic diagram of a fire monitoring system based on an inverter is provided in an embodiment of the present application, such as Figure 5 As shown, the fire monitoring system 50 provided in this embodiment includes:

[0111] The acquisition module 501 is used to acquire a first temperature value of each inverter in the computer room through a temperature sensor, wherein each inverter is correspondingly provided with a temperature sensor.

[0112] The processing module 502 is used to extract a first video frame from a video image acquired by a video monitoring device at a first time interval when the first temperature value is greater than a preset value, wherein each video monitoring device monitors at least one inverter;

[0113] The judgment module 503 is used to determine the fire type of the inverter according to the smoke and / or open flame image in the first video frame and the second temperature value corresponding to the first video frame, and the fire type is used to indicate whether the fire is a smoke type and / or an open flame type.

[0114] The output module 504 is used to output a fire alarm according to the fire type.

[0115] In a possible implementation, the processing module 503 is further configured to obtain the monitoring time of the first video frame when the first video frame with smoke and / or open flame image is detected, and obtain the second temperature value according to the monitoring time.

[0116] If the second temperature value is greater than the first temperature value, the fire type of the inverter is determined based on the smoke and / or open flame image.

[0117] The processing module 502 is also used to extract a second video frame from the video image obtained by the video surveillance device according to a second time interval when the first temperature value is less than a preset value, wherein the second time interval is greater than the first time interval, and the higher the first temperature value, the smaller the first time interval.

[0118] The second video frame is subjected to image analysis to determine whether smoke and / or open flame images are present.

[0119] The output module 504 is further configured to obtain an identifier of the temperature sensor, and obtain the position of the inverter according to a mapping relationship between the identifier of the temperature sensor and the position of the inverter.

[0120] Output fire alarm, including: output fire type and inverter location.

[0121] The output module 504 is further configured to extract a third video frame from the video image acquired by the video surveillance device at a third time interval, wherein the third time interval is smaller than the first time interval.

[0122] According to the smoke and / or open flame image in the third video frame, a fire map is dynamically drawn, in which the position of each inverter is marked, and the fire area of ​​the smoke and / or open flame is drawn in different colors.

[0123] Dynamic display of fire map.

[0124] The output module 504 is also used to obtain the fire area of ​​smoke and / or open fire and the drawing time each time the drawing is performed.

[0125] The fire spreading speed and spreading direction are obtained according to the drawing area and the drawing time.

[0126] Dynamically adjust the alarm level of the fire alarm according to the spread rate.

[0127] According to the diffusion direction, the operation of other inverters is controlled.

[0128] The output module 504 is further configured to obtain a third temperature at a corresponding time according to the acquisition time of the third video frame.

[0129] The depth of the drawn color is determined according to the third temperature, wherein the higher the third temperature is, the deeper the depth of the corresponding color is.

[0130] Dynamically draw a fire map based on the depth of the drawn color.

[0131] The present embodiment provides an inverter-based fire monitoring system, which can execute the method provided in the above method embodiment. Its implementation principle and technical effect are similar, and will not be described in detail in this embodiment.

[0132] Figure 6 The schematic diagram of the structure of a fire fighting device based on an inverter provided in an embodiment of the present application. Figure 6 As shown, the electronic device 60 provided in this embodiment includes: at least one processor 601 and a memory 602. Optionally, the device 60 also includes a communication component 603. The processor 601, the memory 602 and the communication component 603 are connected via a bus 604.

[0133] In a specific implementation process, at least one processor 601 executes the computer execution instructions stored in the memory 602, so that at least one processor 601 executes the above method.

[0134] The specific implementation process of the processor 601 can be found in the above method embodiment, and its implementation principle and technical effect are similar, so this embodiment will not be repeated here.

[0135] In the above embodiments, it should be understood that the processor may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), etc. A general-purpose processor may be a microprocessor or any conventional processor. The steps of the method disclosed in the invention may be directly implemented as being executed by a hardware processor, or may be executed by a combination of hardware and software modules in the processor.

[0136] The memory may include a high-speed memory (Random Access Memory, RAM), and may also include a non-volatile memory (Non-volatile Memory, NVM), such as at least one disk memory.

[0137] The bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, the bus in the drawings of the present application is not limited to only one bus or one type of bus.

[0138] The present application also provides a computer program product, including a computer program, which implements the above method when executed by a processor.

[0139] The present application also provides a computer-readable storage medium, in which computer-executable instructions are stored. When a processor executes the computer-executable instructions, the above method is implemented.

[0140] The above-mentioned readable storage medium can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk. The readable storage medium can be any available medium that can be accessed by a general or special-purpose computer.

[0141] An exemplary readable storage medium is coupled to a processor so that the processor can read information from the readable storage medium and write information to the readable storage medium. Of course, the readable storage medium can also be a component of the processor. The processor and the readable storage medium can be located in an application specific integrated circuit (Application Specific Integrated Circuits, referred to as: ASIC). Of course, the processor and the readable storage medium can also exist in the device as discrete components.

[0142] The division of units is only a logical function division, and there may be other divisions in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interface, device or unit, which can be electrical, mechanical or other forms.

[0143] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0144] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0145] If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods of each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc. Various media that can store program codes.

[0146] Those skilled in the art can understand that all or part of the steps of implementing the above-mentioned method embodiments can be completed by hardware related to program instructions. The aforementioned program can be stored in a computer-readable storage medium. When the program is executed, the steps of the above-mentioned method embodiments are executed; and the aforementioned storage medium includes: ROM, RAM, disk or optical disk and other media that can store program codes.

[0147] Finally, it should be noted that those skilled in the art will readily conceive of other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. The present invention is intended to cover any variations, uses or adaptations of the present invention, which follow the general principles of the present invention and include common knowledge or customary technical means in the art not disclosed by the present invention, are not limited to the precise structure described above and shown in the drawings, and may be modified and changed in various ways without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A fire monitoring method based on an inverter, characterized in that: The method comprises: Acquire a first temperature value of each inverter in the computer room through a temperature sensor, wherein each inverter is correspondingly provided with a temperature sensor; When the first temperature value is greater than a preset value, extracting a first video frame from a video image acquired by a video monitoring device at a first time interval, wherein each video monitoring device monitors at least one inverter; the higher the first temperature value, the smaller the first time interval; Determine the fire type of the inverter according to the smoke and / or open flame image in the first video frame and the second temperature value corresponding to the first video frame, wherein the fire type is used to indicate that the fire is a smoke type and / or an open flame type; According to the fire type, a fire alarm is output.

2. The method according to claim 1, characterized in that The determining the fire type of the inverter according to the smoke and / or open flame image in the first video frame and the temperature value corresponding to each first video frame includes: When a first video frame having an image of smoke and / or open flame is detected, obtaining a monitoring time of the first video frame, and obtaining a second temperature value according to the monitoring time; If the second temperature value is greater than the first temperature value, the fire type of the inverter is determined based on the smoke and / or open flame image.

3. The method according to claim 1, characterized in that The method further comprises: When the first temperature value is less than a preset value, extracting a second video frame from a video image acquired by a video surveillance device at a second time interval, wherein the second time interval is greater than the first time interval; Perform image analysis on the second video frame to determine whether smoke and / or open flame images exist.

4. The method according to claim 1, characterized in that: Before outputting the fire alarm, the method further includes: Acquire the identifier of the temperature sensor, and acquire the position of the inverter according to a mapping relationship between the identifier of the temperature sensor and the position of the inverter; The outputting of the fire alarm includes: outputting the fire type and the location of the inverter.

5. The method according to claim 3, characterized in that: After outputting the fire alarm according to the fire type, the method further comprises: Extracting a third video frame from the video image acquired by the video surveillance device at a third time interval, wherein the third time interval is shorter than the first time interval; Dynamically draw a fire map according to the smoke and / or open flame image in the third video frame, wherein the position of each inverter is marked in the fire map, and the fire area of ​​the smoke and / or open flame is drawn in different colors; The fire map is dynamically displayed.

6. The method according to claim 5, characterized in that After the fire map is dynamically drawn, the method further comprises: Obtain the fire area of ​​smoke and / or open fire and the drawing time for each drawing; According to the drawing area and the drawing time, obtaining the fire spreading speed and spreading direction; dynamically adjusting the alarm level of the fire alarm according to the diffusion rate; According to the diffusion direction, the operation of other inverters is controlled.

7. The method according to claim 5, wherein dynamically drawing a fire map according to the smoke and / or open flame image in the third video frame comprises: According to the acquisition time of the third video frame, obtaining a third temperature at a corresponding time; Determining the depth of the drawn color according to the third temperature, wherein the higher the third temperature is, the deeper the depth of the corresponding color is; A fire map is dynamically drawn according to the depth of the drawing color.

8. A fire monitoring system based on an inverter, characterized in that: The system comprises: an acquisition module, a processing module, a judgment module and an output module; The acquisition module is used to acquire a first temperature value of each inverter in the computer room through a temperature sensor, wherein each inverter is correspondingly provided with a temperature sensor; The processing module is configured to extract a first video frame from a video image acquired by a video monitoring device at a first time interval when the first temperature value is greater than a preset value, wherein each video monitoring device monitors at least one inverter; The judgment module is used to determine the fire type of the inverter according to the smoke and / or open flame image in the first video frame and the second temperature value corresponding to the first video frame, wherein the fire type is used to indicate that the fire is a smoke type and / or an open flame type; The output module is used to output a fire alarm according to the fire type.

9. A fire monitoring device based on an inverter, characterized in that: The device includes: a memory and a processor; The memory stores computer-executable instructions; The processor executes the computer-executable instructions stored in the memory, so that the processor performs the method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer-executable instructions, which are used to implement the method according to any one of claims 1 to 7 when executed by a processor.

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