Smoke recognition method, processing method, device, storage medium and electronic device

Abstract

The present application proposes a smoke recognition method, a processing method, a device, a storage medium and an electronic device, which are applied to a management terminal in a fire protection system. The fire protection system further includes a radar device. The management terminal is communicatively connected to the radar device. The radar device is configured to collect point cloud data in a target area and transmit the collected point cloud data to the management terminal. The method includes: obtaining a differential point cloud between a first point cloud data and a second point cloud data, wherein the acquisition interval between the first point cloud data and the second point cloud data is less than a first preset time period; determining whether the differential point cloud is a smoke area. It overcomes the shortcomings of the prior art, has a large monitoring coverage area, simple layout, high sensitivity in fire recognition, and high recognition accuracy.

Description

Technical Field

[0001] This application relates to the field of fire protection, and more particularly, to a smoke recognition method, a processing method, a device, a storage medium, and an electronic device. Background Art

[0002] With the development of society and the progress of science, people's safety awareness has become stronger and their safety requirements have become higher. As a common safety accident, fire is extremely harmful and may cause irreparable losses to individuals, families, and enterprises. People also realize that for fire accidents, not only need to take preventive measures in advance, but also need to monitor the target scene, detect fire hazards in time, and deal with them in advance to reduce losses.

[0003] How to accurately and quickly locate and monitor fire accidents has become a difficult problem that those skilled in the art are concerned about. Summary of the Invention

[0004] The purpose of this application is to provide a smoke recognition method, a processing method, a device, a storage medium, and an electronic device to at least partially improve the above problems.

[0005] To achieve the above purpose, the technical solutions adopted in the embodiments of this application are as follows:

[0006] In a first aspect, an embodiment of this application provides a smoke recognition method, which is applied to a management terminal in a fire protection system. The fire protection system further includes a radar device, and the management terminal is communicatively connected to the radar device. The radar device is configured to collect point cloud data in a target area and transmit the collected point cloud data to the management terminal. The method includes: obtaining the differential point cloud between the first point cloud data and the second point cloud data, where the acquisition interval between the first point cloud data and the second point cloud data is less than a first preset duration; determining whether the differential point cloud is a smoke area. Overcoming the shortcomings of the prior art, it has a large monitoring coverage area, simple layout, high sensitivity in recognizing fires, and high recognition accuracy.

[0007] Optionally, in the case where it is determined that the differential point cloud is a smoke area, the method further includes: identifying the boundary information of the smoke area based on the differential point cloud to further accurately distinguish and locate the position of the ignition point.

[0008] Optionally, the step of determining whether the differential point cloud is a smoke area includes: determining whether the differential point cloud meets a preset first condition, second condition, and third condition; wherein, the first condition indicates that the shape of the differential point cloud does not belong to a preset regular shape, the second condition indicates that the ranging fluctuation value of the differential point cloud is greater than a first preset value, and the third condition indicates that the reflection intensity fluctuation value of the differential point cloud is greater than a second preset value; if all are met, it is determined that the differential point cloud is a smoke area.

[0009] In a second aspect, an embodiment of the present application provides a smoke processing method, which is applied to a management terminal in a fire protection system. The fire protection system further includes a radar device and a fire extinguishing device. The management terminal is communicatively connected to the radar device and the fire extinguishing device. The radar device is configured to collect point cloud data in a target area and transmit the collected point cloud data to the management terminal. The method includes: determining a target fire extinguishing area based on a first smoke area and a second smoke area, where the first smoke area and the second smoke area are two smoke areas identified based on the above smoke recognition method within a second preset time period; controlling the fire extinguishing device to extinguish the fire in the target fire extinguishing area, thereby eliminating potential safety hazards.

[0010] Optionally, the step of determining the target fire extinguishing area based on the first smoke area and the second smoke area includes: determining the smoke diffusion direction based on the boundary information of the first smoke area and the boundary information of the second smoke area; determining the target fire extinguishing area based on the boundary information of the second smoke area and the smoke diffusion direction, ensuring the accuracy of the fire extinguishing area.

[0011] Optionally, the step of controlling the fire extinguishing device to extinguish the fire in the target fire extinguishing area includes: determining at least one sub-area based on the target fire extinguishing area, where each sub-area belongs to a different range of interest, and the fire extinguishing agent corresponding to each range of interest is different; controlling the fire extinguishing device to spray the corresponding fire extinguishing agent on each sub-area respectively to complete the extinguishing of all sub-areas, spraying different fire extinguishing agents for different areas to prevent chemical reactions between the fire extinguishing agent and other combustibles and cause secondary injuries.

[0012] Optionally, the fire protection system further includes an alarm device, and the alarm device is communicatively connected to the management terminal. After controlling the fire extinguishing device to extinguish the fire in the target fire extinguishing area, the method further includes: controlling the alarm device to give an alarm.

[0013] In a third aspect, an embodiment of the present application provides a smoke recognition device, which is applied to a management terminal in a fire protection system. The fire protection system further includes a radar device. The management terminal is communicatively connected to the radar device. The radar device is configured to collect point cloud data within a target area and transmit the collected point cloud data to the management terminal. The device includes: a first processing unit, configured to obtain a differential point cloud between a first point cloud data and a second point cloud data, wherein a collection interval between the first point cloud data and the second point cloud data is less than a first preset duration; a first recognition unit, configured to determine whether the differential point cloud is a smoke area.

[0014] In a fourth aspect, an embodiment of the present application provides a smoke processing device, which is applied to a management terminal in a fire protection system. The fire protection system further includes a radar device and a fire extinguishing device. The management terminal is communicatively connected to the radar device and the fire extinguishing device. The radar device is configured to collect point cloud data within a target area and transmit the collected point cloud data to the management terminal. The device includes: a second processing unit, configured to determine a target fire extinguishing area based on a first smoke area and a second smoke area, wherein the first smoke area and the second smoke area are two smoke areas recognized within a second preset duration based on the above-mentioned smoke recognition method; a second control unit, configured to control the fire extinguishing device to extinguish the fire in the target fire extinguishing area.

[0015] In a fifth aspect, an embodiment of the present application provides a storage medium, on which a computer program is stored. When the computer program is executed by a processor, the above-mentioned method is implemented.

[0016] In a sixth aspect, an embodiment of the present application provides an electronic device. The electronic device includes: a processor and a memory. The memory is configured to store one or more programs; when the one or more programs are executed by the processor, the above-mentioned method is implemented.

[0017] To make the above objects, features, and advantages of the present application more obvious and understandable, the following specifically enumerates preferred embodiments and, in conjunction with the accompanying drawings, makes a detailed description as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] To more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present application and should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 FIG. is a schematic structural diagram of a fire protection system provided by an embodiment of the present application;

[0020] Figure 2 Structural schematic diagram of the electronic device provided by the embodiment of the present application;

[0021] Figure 3 Flow schematic diagram of the smoke recognition method provided by the embodiment of the present application;

[0022] Figure 4 Schematic diagram of the sub-steps of S102 provided by the embodiment of the present application;

[0023] Figure 5 Flow schematic diagram of the smoke treatment method provided by the embodiment of the present application;

[0024] Figure 6 Schematic diagram of the sub-steps of S201 and S202 provided by the embodiment of the present application;

[0025] Figure 7 Unit schematic diagram of the smoke recognition device provided by the embodiment of the present application;

[0026] Figure 8 Unit schematic diagram of the smoke treatment device provided by the embodiment of the present application.

[0027] In the figure: 100 - management terminal; 200 - radar device; 300 - fire extinguishing device; 10 - processor; 11 - memory; 12 - bus; 13 - communication interface; 401 - first processing unit; 402 - first recognition unit; 403 - second processing unit; 404 - second control unit. Detailed implementation manners

[0028] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some but not all of the embodiments of the present application. Usually, the components of the embodiments of the present application described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application claimed, but merely represents the selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts fall within the scope of protection of the present application.

[0030] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of the present application, the terms "first", "second", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0031] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.

[0032] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this application is customarily placed during use. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0033] In the description of the present application, it should also be noted that unless otherwise clearly specified and defined, the terms "arranged" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0034] The following will describe in detail some embodiments of the present application with reference to the drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0035] Existing fire sensors mainly include photoelectric smoke detectors and temperature detectors, etc. Taking the photoelectric smoke detector as an example, the working principle of the photoelectric smoke fire detector is that a photosensitive electrode generates an electrical signal under laser irradiation. When the fire smoke obscures the laser, the electrode loses power and issues an alarm signal. Its main disadvantages are that the coverage area of the sensor is small and multiple points need to be arranged. Moreover, the sensitivity to identify fire is low, false alarms are likely to occur, and it cannot accurately distinguish and locate the position of the fire origin. When a fire is identified, it cannot spray fire extinguishing agents according to the classification of combustibles, which is likely to cause secondary hazards and runs counter to the purpose of extinguishing the fire.

[0036] To overcome the disadvantages of the existing fire detection, such as small coverage area, low sensitivity, easy false alarms, and inability to locate the fire point, the embodiments of the present application provide a fire protection system. Please refer to Figure 1 , Figure 1 which is the structural schematic diagram of the fire protection system provided by the embodiments of the present application. As Figure 1 shown, the fire protection system includes a management terminal 100, a radar device 200, and a fire extinguishing device 300. The management terminal 100 is communicatively connected to the radar device 200 and the fire extinguishing device 300 respectively.

[0037] In an optional embodiment, the fire protection system further includes a power module, which is connected to the management terminal 100, the radar device 200, and the fire extinguishing device 300 respectively, and is used to supply power to the management terminal 100, the radar device 200, and the fire extinguishing device 300.

[0038] The management terminal 100 can be a computer device, a server device, or a mobile phone device. The radar device 200 can be, but is not limited to, a lidar. The number of deployed radar devices 200 can be greater than 1. The fire extinguishing device 300 can include a first rotation module, a second rotation module, a first spraying module, and a second spraying module. The first rotation module and the first spraying module are drivingly connected, and the second rotation module and the second spraying module are drivingly connected. The first rotation module is used to move under the drive of the management terminal 100, so as to change the pose information of the first spraying module. The second rotation module is used to move under the drive of the management terminal 100, so as to change the pose information of the second spraying module. The first spraying module and the second spraying module can spray fire extinguishing agents based on the control instructions of the management terminal 100 to complete fire extinguishing. Optionally, the types of fire extinguishing agents sprayed by the first spraying module and the second spraying module can be different. By selecting different fire extinguishing agents to extinguish fires in specific areas, chemical reactions between the fire extinguishing agents and other combustibles can be avoided, and secondary injuries can be prevented.

[0039] The radar device 200 is used to collect point cloud data in the target area and transmit the collected point cloud data to the management terminal 100.

[0040] The management terminal 100 can identify whether a fire occurs in the target area based on the point cloud data in the target area, and then complete fire protection management.

[0041] The embodiments of the present application provide an electronic device, which can be the Figure 1 management terminal 100 shown in Figure 2 . Please refer to the structural schematic diagram of the electronic device. The electronic device includes a processor 10, a memory 11, and a bus 12. The processor 10 and the memory 11 are connected through the bus 12. The processor 10 is used to execute the executable module stored in the memory 11, such as a computer program.

[0042] The processor 10 can be an integrated circuit chip with signal processing capabilities. During implementation, each step of the smoke identification and processing method can be completed by hardware integrated logic circuits or software instructions in the processor 10. The aforementioned processor 10 can be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it can also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components.

[0043] The memory 11 may include a high-speed random access memory (RAM), and may also include a non-volatile memory, such as at least one disk memory.

[0044] The bus 12 may be an ISA (Industry Standard Architecture) bus, a PCI (Peripheral Component Interconnect) bus, or an EISA (Extended Industry Standard Architecture) bus. Figure 2 Only one bidirectional arrow is used in the figure, but it does not mean that there is only one bus 12 or one type of bus 12.

[0045] Memory 11 is used to store programs, such as those corresponding to the smoke identification and processing device. The smoke identification and processing device includes at least one software functional module, which can be stored in memory 11 in the form of software or firmware, or embedded in the operating system (OS) of the electronic device. Upon receiving an execution instruction, processor 10 executes the program to implement the smoke identification and processing method.

[0046] Possibly, the electronic device provided in the embodiment of the present application further includes a communication interface 13. The communication interface 13 is connected to the processor 10 via a bus.

[0047] It should be understood that Figure 2The structure shown is only a schematic diagram of a part of the electronic device, and the electronic device may further include more or fewer components than those shown in Figure 2 or have a different configuration from that shown in Figure 2 . Figure 2 Each component shown in can be implemented by hardware, software, or a combination thereof.

[0048] A smoke recognition method provided by an embodiment of the present application can be, but is not limited to, applied to the electronic device shown in Figure 2 . For the specific process, please refer to Figure 3 . The smoke recognition method includes: S101, S102, and S103, which are specifically described as follows.

[0049] S101, obtaining the differential point cloud between the first point cloud data and the second point cloud data.

[0050] Wherein, the acquisition interval between the first point cloud data and the second point cloud data is less than a first preset duration.

[0051] Optionally, the first point cloud data and the second point cloud data can be the point cloud data obtained within adjacent acquisition cycles, or can be separated by a certain duration, which can be set according to user requirements or based on the acquisition cycle length of the radar device 200.

[0052] It should be understood that in the initial stage of a fire, irregular and rapidly changing smoke will be generated, and the main component of the smoke is fine particles. When the light emitted by the lidar hits the smoke, a corresponding echo signal will be generated. Because the smoke is changing rapidly, there will be a large difference in the echo signals corresponding to the smoke part between the first point cloud data and the second point cloud data, such as range difference, etc. By obtaining the differential point cloud, it can be further determined whether the differential point cloud is a smoke area.

[0053] Optionally, before S101, the management terminal 100 can also first determine whether there is a differential point cloud between the first point cloud data and the second point cloud data. If there is, execute S101; if not, wait until new point cloud data is obtained in the next detection cycle and then re-judge.

[0054] S102, determining whether the differential point cloud is a smoke area. If so, execute S103; if not, repeat S101 or end.

[0055] Optionally, it can be determined whether the differential point cloud is a smoke area based on preset conditions, and the preset conditions can be, but are not limited to, the first condition, the second condition, and the third condition. The first condition indicates that the shape of the differential point cloud does not belong to a preset regular shape, the second condition indicates that the ranging fluctuation value of the differential point cloud is greater than a first preset value, and the third condition indicates that the reflection intensity fluctuation value of the differential point cloud is greater than a second preset value.

[0056] For example, when any one of the first condition, the second condition, and the third condition is satisfied, it is determined as a smoke area; or, when any one of the first condition, the second condition, and the third condition is not satisfied, it is determined that it is not a smoke area; or, when any two of the first condition, the second condition, and the third condition are satisfied, it is determined as a smoke area.

[0057] A lidar is used as a smoke detection sensor. By utilizing the characteristics of large field of view, high resolution, and high-precision ranging and angle measurement of the lidar, smoke is identified, overcoming the shortcomings of the prior art, with a large monitoring coverage area, simple layout, high sensitivity for identifying fires, and high identification accuracy.

[0058] When the differential point cloud is identified as a smoke area, in order to further accurately distinguish and locate the position of the ignition point, an optional implementation manner is also provided in the embodiment of the present application, that is, S103 is executed.

[0059] When it is identified that the differential point cloud is not a smoke area, after waiting for a preset time interval, S101 can be repeatedly executed, or it can be directly skipped.

[0060] S103, identifying the boundary information of the smoke area based on the differential point cloud.

[0061] Optionally, the boundary information of the smoke area includes the boundary points of the smoke area on each axis in the radar coordinate system. The smoke area can be accurately located through the boundary information, ensuring the effective completion of fire extinguishing.

[0062] In Figure 3 On this basis, for the content in S102, a possible implementation manner is also provided in the embodiment of the present application. Please refer to Figure 4 , S102 includes: S102-1 and S102-2, which are specifically described as follows.

[0063] S102-1, determining whether the differential point cloud satisfies the preset first condition, second condition, and third condition. If so, execute S103; if not, repeatedly execute S101, or end.

[0064] Among them, the first condition indicates that the shape of the differential point cloud does not belong to the preset regular shape, the second condition indicates that the ranging fluctuation value of the differential point cloud is greater than the first preset value, and the third condition indicates that the reflection intensity fluctuation value of the differential point cloud is greater than the second preset value.

[0065] Optionally, it is possible to sequentially determine whether the first condition, the second condition, and the third condition are satisfied, or it is also possible to synchronously determine. When any one of them is not satisfied, it is determined that the differential point cloud is not a smoke area.

[0066] S102-2, determining that the differential point cloud is a smoke area.

[0067] Based on a smoke recognition method provided in an embodiment of the present application, an embodiment of the present application further provides a smoke processing method, which can be but is not limited to being applied to Figure 2 the electronic device shown in Figure 5 . The smoke recognition method includes: S201, S202, and S203, which are specifically described as follows.

[0068] S201. Determine a target fire extinguishing area based on a first smoke area and a second smoke area.

[0069] Among them, the first smoke area and the second smoke area are two smoke areas recognized based on the above smoke recognition method within a second preset time period.

[0070] Optionally, the volume of the second smoke area is greater than the volume of the first smoke area. By observing the first smoke area and the second smoke area, the change trend of the smoke can be determined, and then the target fire extinguishing area can be determined.

[0071] S202. Control a fire extinguishing device to extinguish the fire in the target fire extinguishing area.

[0072] Optionally, control the fire extinguishing device 300 to spray a corresponding fire extinguishing agent to extinguish the fire in the target fire extinguishing area.

[0073] Optionally, in order to further eliminate potential safety hazards in the target area and ensure the safety of the target area, an embodiment of the present application further provides an optional implementation manner. The fire protection system further includes an alarm device, and the alarm device is communicatively connected to a management terminal. After S201 or S202, S203 can be executed.

[0074] S203. Control the alarm device to give an alarm.

[0075] Among them, the alarm device can push an alarm message to a user terminal or directly emit an audible and visual alarm signal.

[0076] On the basis of Figure 5 For the content in S201, an embodiment of the present application further provides an optional implementation manner. Please refer to Figure 6 . S201 includes: S201-1 and S201-2, which are specifically described as follows.

[0077] S201-1. Determine the smoke diffusion direction based on the boundary information of the first smoke area and the boundary information of the second smoke area.

[0078] Optionally, record the recognition position of the first smoke area as P1 and the recognition position of the second smoke area as P2. By comparing the ranging deviations of the P2 position relative to the P1 position in the X-axis direction, Y-axis direction, and Z-axis direction, it is possible to determine how much the smoke has shifted in the three directions, and thus determine the trend of the smoke. Here, XYZ are the three axes in the lidar coordinate system.

[0079] Optionally, obtain Ddelta_X, Ddelta_Y, and Ddelta_Z respectively:

[0080] Ddelta_X = P2.X - P1.X;

[0081] Ddelta_Y = P2.Y - P1.Y;

[0082] Ddelta_Z = P2.Z - P1.Z;

[0083] Here, (P1.X, P1.Y, P1.Z) represents the boundary range of the first smoke area, and (P2.X, P2.Y, P2.Z) represents the boundary range of the second smoke area.

[0084] Specifically, when Ddelta_X is greater than 0, it means the smoke moves in the positive X-axis direction relative to the P1 position; when Ddelta_X is less than 0, it means the smoke moves in the negative X-axis direction relative to the P1 position; when Ddelta_Y is greater than 0, it means the smoke moves in the positive Y-axis direction relative to the P1 position; when Ddelta_Y is less than 0, it means the smoke moves in the negative Y-axis direction relative to the P1 position; when Ddelta_Z is greater than 0, it means the smoke moves in the positive Z-axis direction relative to the P1 position; when Ddelta_Z is less than 0, it means the smoke moves in the negative Z-axis direction relative to the P1 position.

[0085] It should be understood that after determining the diffusion direction of the smoke, it is possible to further determine the areas that may have potential hazards based on this.

[0086] S201-2, determine the target fire extinguishing area based on the boundary information of the second smoke area and the smoke diffusion direction.

[0087] Optionally, based on the boundary information of the second smoke area, expand along the smoke diffusion direction, so as to determine the target fire extinguishing area.

[0088] Please continue to refer to Figure 6 , for the content in S202, the embodiments of the present application also provide an optional implementation manner. S202 includes: S202-1 and S202-2, which are specifically described as follows

[0089] S202-1, determine at least one sub-area based on the target fire extinguishing area.

[0090] Among them, each sub-region belongs to a different region of interest, and the fire extinguishing agent corresponding to each region of interest is different.

[0091] Optionally, the target fire extinguishing area is compared with each region of interest respectively, and the overlapping part is determined as the sub-region corresponding to the region of interest.

[0092] S202-2, control the fire extinguishing equipment to spray the corresponding fire extinguishing agent on each sub-region respectively to complete the fire extinguishing of all sub-regions.

[0093] The entire protected scene is segmented into multiple regions of interest through the ROI (Region of Interest) function of the lidar. Different fire extinguishing agents are sprayed on different regions to prevent chemical reactions between the fire extinguishing agent and other combustibles, causing secondary damage.

[0094] Optionally, the ROI (Region of Interest) function of the lidar is a technical function of the lidar. That is, the lidar field of view can be divided into several sub-fields of view, and the radar data of each sub-field of view is marked. In actual application, the entire room can be divided into different sub-regions, and each sub-region corresponds to a sub-field of view. At least two sub-regions are extinguished by different fire extinguishing agents, or each different sub-region is extinguished by a different fire extinguishing agent. Sprinkle the corresponding type of fire extinguishing agent in the sub-region where the fire occurs.

[0095] It should be understood that in a room or a warehouse, different substances can be placed in different sub-regions, and the fire extinguishing agent suitable for the fire of each type of substance is pre-allocated respectively. Using the function of the radar to distinguish regions, when a fire occurs in a sub-region, the fire extinguishing agent preset for that sub-region is sprayed.

[0096] Please refer to Figure 7 , Figure 7 A smoke recognition device provided by an embodiment of the present application. Optionally, the smoke recognition device is applied to the electronic device described above.

[0097] The smoke recognition device includes a first processing unit 401 and a first recognition unit 402.

[0098] The first processing unit 401 is configured to obtain the differential point cloud between the first point cloud data and the second point cloud data, where the acquisition interval between the first point cloud data and the second point cloud data is less than a first preset duration;

[0099] The first recognition unit 402 is configured to determine whether the differential point cloud is a smoke area.

[0100] It should be noted that the smoke recognition device provided in this embodiment can execute the method flow shown in the above method flow embodiment to achieve the corresponding technical effects. For the sake of brief description, for the parts not mentioned in this embodiment, reference can be made to the corresponding content in the above embodiment.

[0101] Please refer to Figure 8 , Figure 8 which is a smoke processing device provided in an embodiment of the present application. Optionally, the smoke recognition device is applied to the electronic device described above.

[0102] The smoke processing device includes: a second processing unit 403 and a second control unit 404.

[0103] The second processing unit 403 is used to determine a target fire extinguishing area based on a first smoke area and a second smoke area, where the first smoke area and the second smoke area are two smoke areas recognized within a second preset time period based on the above smoke recognition method;

[0104] The second control unit 404 is used to control a fire extinguishing device to extinguish the fire in the target fire extinguishing area.

[0105] It should be noted that the smoke recognition and processing device provided in this embodiment can execute the method flow shown in the above method flow embodiment to achieve the corresponding technical effects. For the sake of brief description, for the parts not mentioned in this embodiment, reference can be made to the corresponding content in the above embodiment.

[0106] An embodiment of the present application also provides a storage medium, which stores computer instructions and programs, and when the computer instructions and programs are read and run, they execute the smoke recognition and processing method of the above embodiment. The storage medium may include a memory, a flash memory, a register, or a combination thereof, etc.

[0107] The following provides an electronic device, which can be Figure 1 the management terminal 100 shown in Figure 2 As shown, the above-mentioned smoke recognition and processing method can be implemented; specifically, the electronic device includes: a processor 10, a memory 11, and a bus 12. The processor 10 can be a CPU. The memory 11 is used to store one or more programs, and when the one or more programs are executed by the processor 10, the smoke recognition and processing method of the above embodiment is executed.

[0108] In the embodiments provided in the present application, it should be understood that the disclosed devices and methods can also be implemented in other ways. The device embodiments described above are merely illustrative. For example, the flowcharts and block diagrams in the accompanying drawings show the possible architectures, functions, and operations of devices, methods, and computer program products according to multiple embodiments of the present application. In this regard, each block in the flowchart or block diagram may represent a module, a program segment, or a part of code, and the module, program segment, or part of code contains one or more executable instructions for implementing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the blocks may occur in a different order than marked in the accompanying drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in the reverse order, depending on the functions involved. It should also be noted that each block in the block diagram and / or flowchart, as well as the combination of blocks in the block diagram and / or flowchart, can be implemented by a dedicated hardware-based system for performing the specified functions or actions, or can be implemented by a combination of dedicated hardware and computer instructions.

[0109] In addition, in each embodiment of the present application, the various functional modules can be integrated together to form an independent part, or each module can exist separately, or two or more modules can be integrated to form an independent part.

[0110] If the above functions are implemented in the form of software functional modules and sold or used as an independent product, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art, or a part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in each embodiment of the present application. The aforementioned storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disks, or optical discs that can store program codes.

[0111] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

[0112] For those skilled in the art, it is obvious that the present application is not limited to the details of the above-described exemplary embodiments, and that the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, in any regard, the embodiments should be regarded as exemplary and non-limiting. The scope of the present application is defined by the appended claims rather than the above description. Accordingly, all changes that fall within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present application. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A smoke recognition method, characterized in that, A management terminal applied to a fire protection system. The fire protection system further includes a radar device. The management terminal is communicatively connected to the radar device. The radar device is configured to collect point cloud data within a target area and transmit the collected point cloud data to the management terminal. The method includes: Obtain the differential point cloud between the first point cloud data and the second point cloud data, where the collection interval between the first point cloud data and the second point cloud data is less than a first preset duration. Determine whether the differential point cloud is a smoke area, including: determining whether the differential point cloud meets a preset first condition, second condition, and third condition; where the first condition indicates that the shape of the differential point cloud does not belong to a preset regular shape, the second condition indicates that the ranging fluctuation value of the differential point cloud is greater than a first preset value, and the third condition indicates that the reflection intensity fluctuation value of the differential point cloud is greater than a second preset value; if all are met, determine that the differential point cloud is a smoke area.

2. The smoke recognition method according to claim 1, wherein In the case where it is determined that the differential point cloud is a smoke area, the method further includes: Identify the boundary information of the smoke area based on the differential point cloud.

3. A method for treating smoke, characterized in that, A management terminal applied to a fire protection system. The fire protection system further includes a radar device and a fire extinguishing device. The management terminal is communicatively connected to the radar device and the fire extinguishing device. The radar device is configured to collect point cloud data within a target area and transmit the collected point cloud data to the management terminal. The method includes: Determine a target fire extinguishing area based on a first smoke area and a second smoke area, where the first smoke area and the second smoke area are two smoke areas identified by the smoke recognition method according to claim 1 within a second preset duration. Control the fire extinguishing device to extinguish the fire in the target fire extinguishing area.

4. The smoke treatment method according to claim 3, characterized in that, The step of determining the target fire extinguishing area based on the first smoke area and the second smoke area includes: Determine the smoke diffusion direction based on the boundary information of the first smoke area and the boundary information of the second smoke area. Determine the target fire extinguishing area based on the boundary information of the second smoke area and the smoke diffusion direction.

5. The smoke treatment method according to claim 3 or 4, characterized in that, The step of controlling the fire extinguishing device to extinguish the fire in the target fire extinguishing area includes: Determine at least one sub-area based on the target fire extinguishing area, where each sub-area belongs to a different range of interest, and the fire extinguishing agent corresponding to each range of interest is different. Control the fire extinguishing device to spray the corresponding fire extinguishing agent on each sub-area respectively to complete the extinguishing of all sub-areas.

6. The smoke treatment method according to claim 3, wherein, The fire protection system further includes an alarm device. The alarm device is communicatively connected to the management terminal. After controlling the fire extinguishing device to extinguish the fire in the target fire extinguishing area, the method further includes: Control the alarm device to give an alarm.

7. A smoke recognition device, characterized in that, A management terminal applied to a fire protection system. The fire protection system further includes a radar device. The management terminal is communicatively connected to the radar device. The radar device is configured to collect point cloud data within a target area and transmit the collected point cloud data to the management terminal. The device includes: A first processing unit, configured to obtain a differential point cloud between a first point cloud data and a second point cloud data, wherein a collection interval between the first point cloud data and the second point cloud data is less than a first preset duration; A first recognition unit, configured to determine whether the differential point cloud is a smoke area, including: determining whether the differential point cloud meets a preset first condition, second condition, and third condition; wherein, the first condition indicates that a shape of the differential point cloud does not belong to a preset regular shape, the second condition indicates that a ranging fluctuation value of the differential point cloud is greater than a first preset value, and the third condition indicates that a reflection intensity fluctuation value of the differential point cloud is greater than a second preset value; if all are met, it is determined that the differential point cloud is a smoke area.

8. A smoke treatment device, characterized in that, A management terminal applied to a fire protection system, the fire protection system further including a radar device and a fire extinguishing device, the management terminal being communicatively connected to the radar device and the fire extinguishing device, the radar device being configured to collect point cloud data within a target area and transmit the collected point cloud data to the management terminal, the apparatus including: A second processing unit, configured to determine a target fire extinguishing area based on a first smoke area and a second smoke area, wherein the first smoke area and the second smoke area are two smoke areas identified based on the smoke recognition method according to claim 1 within a second preset duration; A second control unit, configured to control the fire extinguishing device to extinguish a fire in the target fire extinguishing area.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the method according to any one of claims 1-6.

10. An electronic device, characterized in that, Including: A processor and a memory, the memory being configured to store one or more programs; When the one or more programs are executed by the processor, the method according to any one of claims 1-6 is implemented.

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