Natural fire-fighting water source information processing method and forest fire-fighting system

Abstract

The invention provides a natural fire-fighting water source information processing method and a forest fire-fighting system. The method comprises the following steps: receiving a movement track of a carrier and labeling information of a natural fire-fighting water source through a Beidou box; determining the water supply capacity of the natural fire-fighting water source according to the labeling information of the natural fire-fighting water source; determining at least one first reference route according to the positioning information of at least one final position where the fire-fighting vehicle is driven to enter the target forest region, the positioning information of the natural fire-fighting water source and the topographic data; correcting the moving track to obtain a second reference route; and after detecting that a forest fire event occurs in the target forest region, determining a target route for reaching the natural fire-fighting water source from the reference route according to the fire information of the ignition point and the above information, and determining the water supply amount of the mobile water source. Therefore, in the application, the efficiency and success rate of the fire extinguishing action can be improved by acquiring the fire-fighting water source information in advance and performing path planning and the required preparation amount of the moving water source.

Description

Technical Field

[0001] The present application relates to the field of fire fighting technology, and in particular to a method for processing natural fire fighting water source information and a forest fire fighting system. Background Art

[0002] When a forest area is on fire, since fire trucks cannot reach the fire point directly, they can only rely on the forest area’s own water source conditions, such as natural streams and lakes. Therefore, finding the water source is the first step in organizing the use of water to extinguish the fire. In the prior art, a telescope is usually used at a high altitude to survey the location of the water source near the fire site, and a rangefinder is used to measure the nearest and most convenient water source. However, in some forest areas, due to complex terrain and dense vegetation, it is difficult to meet the visual conditions. At the same time, drones are often affected by objective factors such as strong winds and battery life, making it difficult to function. This results in the inability to accurately and timely find natural water resources and their water supply capacity, resulting in low firefighting efficiency for firefighters. Summary of the invention

[0003] The present application provides a method for processing natural fire water source information and a forest fire fighting system. By obtaining fire water source information in advance and performing route planning and preparing the required amount of mobile water sources, it can not only improve the efficiency and success rate of fire fighting operations, but also effectively ensure the safety of firefighters and the rational use of resources.

[0004] The present application provides a method for processing natural fire water source information, which is applied to a server in a forest fire fighting system, wherein the forest fire fighting system also includes a Beidou box, and the server is communicatively connected to the Beidou box. The method includes: receiving trajectory recording information from the Beidou box, wherein the trajectory recording information includes the movement trajectory of the carrier of the Beidou box in the target forest area and the marking information of the natural fire fighting water source, wherein the marking information includes the positioning information and basic attribute information of the natural fire fighting water source, wherein the basic attribute information includes the water source type, water source capacity, and water flow speed; determining the water supply capacity of the natural fire fighting water source according to the water source type, the water source capacity, and the water flow speed, wherein the water supply capacity is used to characterize the natural fire fighting water source. The water supply duration and the total water supply of the source can be continuously supplied; according to the terrain data of the target forest area, the positioning information of at least one final position of the fire truck driving into the target forest area is determined; according to the positioning information of the at least one final position, the positioning information of the natural fire water source, and the terrain data, at least one first reference route is determined; the moving trajectory is corrected to obtain a second reference route; after a forest fire incident is detected in the target forest area, the target route to the natural fire water source is determined from the at least one first reference route and the second reference route according to the positioning information of the fire point, the fire information, and the positioning information of the natural fire water source; and the water supply capacity of the mobile water source is determined according to the fire information and the water supply capacity.

[0005] The present application provides a forest fire fighting system, including a server and a Beidou box. The server is communicatively connected to the Beidou box, and the server is used to execute the step instructions in any one of the above method embodiments.

[0006] The present application provides a natural fire water source information processing device, which is applied to a server in a forest fire fighting system, wherein the forest fire fighting system also includes a Beidou box, and the server is communicatively connected to the Beidou box. The device includes: a receiving unit, which is used to receive track record information from the Beidou box, wherein the track record information includes the movement track of the carrier of the Beidou box in the target forest area and the marking information of the natural fire fighting water source, wherein the marking information includes the positioning information and basic attribute information of the natural fire fighting water source, wherein the basic attribute information includes the water source type, water source capacity, and water flow speed; a processing unit, which is used to determine the water supply capacity of the natural fire fighting water source according to the water source type, the water source capacity, and the water flow speed, wherein the water supply capacity is used to characterize the natural fire fighting water source. the duration of water supply that a fire water source can continuously supply and the total water supply; and, based on the terrain data of the target forest area, determining the positioning information of at least one final position of a fire truck driving into the target forest area; and, based on the positioning information of the at least one final position, the positioning information of the natural fire water source, and the terrain data, determining at least one first reference route; and, correcting the moving trajectory to obtain a second reference route; and, after detecting a forest fire in the target forest area, determining the target route to the natural fire water source from the at least one first reference route and the second reference route based on the fire information of the ignition point and the positioning information of the natural fire water source, and, determining the water supply of the mobile water source based on the fire information and the water supply capacity.

[0007] It can be seen that in the embodiment of the present application, the server receives the track record information from the Beidou box, the track record information includes the movement track of the carrier of the Beidou box in the target forest area and the marking information of the natural fire water source, the marking information includes the positioning information and basic attribute information of the natural fire water source, the basic attribute information includes the water source type, water source capacity, and water flow rate; the water supply capacity of the natural fire water source is determined according to the water source type, water source capacity, and water flow rate, and the water supply capacity is used to characterize the water supply time and total water supply of the natural fire water source that can continuously supply water; obtain the pre-stored geographic information map of the target forest area, and according to the geographic The topographic data of the target forest area in the information graph determines the positioning information of at least one final position of the fire truck driving into the target forest area; at least one first reference route is determined based on the positioning information of at least one final position, the positioning information of the natural fire water source, and the topographic data; the moving trajectory is corrected to obtain the second reference route; after a forest fire incident is detected in the target forest area, the target route to the natural fire water source is determined from at least one first reference route and the second reference route based on the fire information of the ignition point and the positioning information of the natural fire water source, and the water supply of the mobile water source is determined based on the fire information and the water supply capacity. Therefore, in the present application, by obtaining the fire water source information in advance and performing path planning and the required preparation of the mobile water source, compared with the method of temporarily finding a water source in the target forest area after a forest fire incident in the prior art, it can not only improve the efficiency and success rate of the fire-fighting operation, but also effectively ensure the safety of firefighters and the rational use of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0009] Figure 1 A schematic diagram of the structure of a forest fire fighting system provided in an embodiment of the present application;

[0010] Figure 2 A flowchart of a method for processing natural fire water source information provided in an embodiment of the present application;

[0011] Figure 3 A front view of a target forest area is provided for the embodiment of the present application;

[0012] Figure 4 A schematic diagram of a moving trajectory route correction provided in an embodiment of the present application;

[0013] Figure 5 A schematic diagram of a target route provided in an embodiment of the present application;

[0014] Figure 6 A structural block diagram of a natural fire water source information processing device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0015] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0016] The terms "first", "second", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes steps or units that are not listed, or optionally includes other steps or units inherent to these processes, methods, products or devices.

[0017] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0018] In the embodiments of the present application, "and / or" describes the association relationship of the associated objects, indicating that three relationships may exist. For example, A and / or B can represent the following three situations: A exists alone; A and B exist at the same time; B exists alone. Among them, A and B can be singular or plural.

[0019] In the embodiment of the present application, the symbol " / " can indicate that the objects associated with each other are in an "or" relationship. In addition, the symbol " / " can also indicate a division sign, that is, performing a division operation. For example, A / B can indicate A divided by B.

[0020] In the embodiments of the present application, "at least one item" or similar expressions refer to any combination of these items, including any combination of single items or plural items, and refer to one or more, and multiple refers to two or more. For example, at least one item of a, b, or c can represent the following seven situations: a, b, c, a and b, a and c, b and c, a, b, and c. Among them, each of a, b, and c can be an element or a set containing one or more elements.

[0021] In the embodiments of the present application, "equal to" can be used in conjunction with greater than, and is applicable to the technical solution adopted when greater than, and can also be used in conjunction with less than, and is applicable to the technical solution adopted when less than. When equal to is used in conjunction with greater than, it is not used in conjunction with less than; when equal to is used in conjunction with less than, it is not used in conjunction with greater than.

[0022] The present application provides a display time control method and related equipment, which periodically obtains the temperature of food during the cooking process through a probe component, calculates the remaining cooking time based on the temperature, and adjusts the display time based on the remaining cooking time, thereby improving the real-time and accuracy of the display time adjustment.

[0023] 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.

[0024] The present application provides a method for processing natural fire water source information and a forest fire fighting system. By obtaining fire water source information in advance and performing route planning and preparing the required amount of mobile water sources, it can not only improve the efficiency and success rate of fire fighting operations, but also effectively ensure the safety of firefighters and the rational use of resources.

[0025] 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.

[0026] See also Figure 1 and Figure 2 , Figure 1 A schematic diagram of the structure of a forest fire fighting system provided in an embodiment of the present application, Figure 2 A flowchart of a method for processing natural fire water source information provided in an embodiment of the present application.

[0027] The forest fire fighting system 1 includes a Beidou box 20 of a carrier 10 and a server 30 , and the Beidou box 20 and the server 30 are communicatively connected.

[0028] Among them, the Beidou box 20 can specifically include a front-end device applied to the user side, which can realize functions such as positioning, navigation, and trajectory calibration.

[0029] The server 30 may specifically include a server for data processing in the background that is applied to one side of the network platform and can realize functions such as data transmission and data processing. It may be a physical server or a server cluster or distributed system composed of multiple physical servers. In this embodiment, the number of servers is not specifically limited. Alternatively, it may also be a cloud server that provides basic cloud computing services such as cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communications, middleware services, domain name services, security services, content delivery networks (CDN), and big data and artificial intelligence platforms.

[0030] Server 30 is Figure 2 The execution body of the method for processing natural fire water source information shown in the figure comprises the following steps S201 to S207:

[0031] Step 201: The server receives the track record information from the Beidou box.

[0032] When the carrier of the Beidou box is looking for water in the target forest area, the track recording function of the Beidou box will be activated. The Beidou box obtains the carrier's positioning information at a certain recording frequency and uploads it to the server. The Beidou box includes a Beidou communication module, a Beidou positioning module and a display. The Beidou communication module is used to exchange information with the server, the Beidou positioning module is used to obtain the carrier's positioning information, and the display screen is used to display various prompt information.

[0033] In specific implementation, using the Beidou box to record tracks includes the following steps a to c:

[0034] Step a: The Beidou box receives a long press operation of the carrier on the track recording button, starts the track recording function, and obtains the carrier's positioning information according to a preset frequency;

[0035] Step b, during the track recording period, a short press operation of the track recording button is received by the carrier, and the user is prompted to perform a special location marking operation (the special location in this embodiment is a natural fire water source), and the marking operation includes but is not limited to icon marking, image marking, text marking, and voice marking of the natural fire water source. After receiving the short press operation of the track recording button again, the special location marking operation is completed, and the marking information and positioning information are sent to the server;

[0036] Step c, when a long press operation on the track recording button is received again, the track recording function is terminated, track recording information is generated according to the recorded multiple positioning information and the marking information of the natural fire water source, and the track recording information is uploaded to the server.

[0037] Among them, the trajectory recording information includes the movement trajectory of the Beidou box carrier in the target forest area and the marking information of the natural fire water source. The marking information includes the positioning information and basic attribute information of the natural fire water source. The basic attribute information includes water source type, water source capacity, and water flow speed.

[0038] Among them, the carrier estimates the water source capacity and water flow rate of the water source according to the type of water source. The water source capacity can be calculated by measuring the surface area of ​​the water source and the average water depth, and the water flow rate can be obtained through water flow rate measuring equipment such as a flow meter.

[0039] Furthermore, during the positioning of the Beidou box, after the Beidou positioning module starts the positioning operation, the control display screen displays the first prompt interface, and the first prompt interface displays "Positioning...", and the positioning icon in the status bar is controlled to flash; if the positioning is still not successful within 1 minute, the control display screen displays the second prompt interface, and the second prompt interface displays "Positioning, please move to an open area"; if the positioning is still not successful within 3 minutes, the control display screen displays the third prompt interface, and the third prompt interface displays "Positioning timeout", and the positioning information obtained from the last positioning operation is used as the positioning information of the current positioning operation; if the positioning is successful at any time within 3 minutes, the control display screen displays the fourth prompt interface, and the fourth prompt interface displays "Positioning successful, recording trajectory".

[0040] Furthermore, when the Beidou box is marking icons, the switch button on the Beidou box selects a suitable icon from multiple icons to mark the current position; when the Beidou box is marking images, texts, and voices, the mobile terminal device carried by the carrier can be used for auxiliary marking. The mobile terminal device includes but is not limited to mobile phones, smart watches, etc. The Beidou box communicates with the mobile terminal via wired or wireless means. The specific process of auxiliary marking includes steps d to h:

[0041] Step d, after the Beidou box receives the short press operation of the carrier on the track recording button, it sends a label information acquisition instruction to the mobile terminal device, and the label information acquisition instruction is used to obtain the identification information of the text information, voice information, and image information stored in the mobile terminal device, and each label information has a unique identifier;

[0042] Step e, the mobile terminal device sends the stored text, voice, image information and corresponding identification information to the Beidou box and to the server;

[0043] Step f, the server stores the text, voice, image information and corresponding identification information from the mobile terminal device in a memory of the server;

[0044] Step g, after the Beidou box receives the identification information of text, voice, and image information, it displays multiple identification information on the display screen, and the carrier selects the target identification information from the multiple identification information through the switch button of the Beidou box, and uploads the target identification information to the server;

[0045] Step h: The server obtains the text, voice, and image corresponding to the identification information from the memory according to the identification information uploaded by the Beidou box.

[0046] Step 202: The server determines the water supply capacity of the natural fire water source according to the water source type, the water source capacity, and the water flow rate.

[0047] Among them, water supply capacity is used to characterize the length of time that natural fire water sources can continuously supply water and the total water supply.

[0048] In some embodiments, determining the water supply capacity of the natural fire water source based on the water source type, the water source capacity, and the water flow rate includes: obtaining parameter performance of water extinguishing equipment, the parameter performance including the pumping flow rate per unit time; calculating the water supply time of the natural fire water source based on the pumping flow rate and the water source type and the water source capacity, and the water flow rate.

[0049] Among them, water-fighting equipment includes but is not limited to fire trucks, water pumps, etc., and parameter performance includes the pumping flow rate of water-fighting equipment per unit time, that is, the pumping flow rate per unit time (which can be per minute or per hour) for fire trucks or water pumps with different power and pumping pressure.

[0050] Among them, water source types include flowing water sources and non-flowing water sources, and the water supply time of the natural fire water source is calculated according to the pumping flow, the water source type, the water source capacity, and the water flow rate, including: if the water source type of the natural fire water source is the flowing water source, obtain the difference between the pumping flow and the water flow rate, and divide the water source capacity by the difference to obtain the water supply time; if the water source type of the natural fire water source is the non-flowing water source, divide the water source capacity by the pumping flow to obtain the water supply time.

[0051] Specifically, assume that the pumping flow is V1 and the water source capacity is C;

[0052] If the natural fire water source is a flowing water source, its water flow rate is determined to be V2, and the water supply time is t1, then C+V2×t1≥V1×t1, then t1≤C / (V 1-V2), therefore, the maximum water supply time of the flowing water source is C / (V 1-V 2); the total water supply of the flowing water source is calculated based on the water supply time and the pumping flow rate;

[0053] If the natural fire-fighting water source is a non-flowing water source and the water supply time is determined to be t2, then C = V1 × t2, t2 = C / V1. Therefore, the water supply time of the non-flowing water source is C / V1; the total water supply of the non-flowing water source is equal to the water source capacity C.

[0054] It can be seen that in this embodiment, the water supply time and total water supply of the natural fire water source can be accurately determined through the basic water source parameters of the natural fire water source and the pumping flow of the water extinguishing equipment, and the fire extinguishing capacity of the natural fire water source can be accurately evaluated, thereby improving the efficiency and accuracy of water resource allocation in fire extinguishing.

[0055] Step 203: The server determines positioning information of at least one final position of the fire truck driving into the target forest area based on the terrain data of the target forest area.

[0056] Among them, the terrain data can be directly obtained by calling the geographic information system GIS of the target forest area. When determining the final location of the fire truck, the final distance that the fire truck can enter can be determined by the slope information, vegetation coverage, and road conditions in the terrain data. For example, if there is a road, the vegetation is mainly low-strain herbaceous plants, and the slope is less than 30 degrees, it is determined that the fire truck can enter; on the contrary, if the slope is larger than 30 degrees or the vegetation is trees with a high coverage rate, it is determined that the fire truck cannot enter, and a parking spot is determined at a suitable location nearby.

[0057] Step 204: The server determines at least one first reference route according to the positioning information of the at least one final position, the positioning information of the natural fire water source, and the terrain data.

[0058] In some embodiments, determining at least one first reference route based on the positioning information of the at least one final position, the positioning information of the natural fire water source, and the terrain data includes: for each of the at least one final position, determining the straight-line distance between each final position and the natural fire water source as the initial route; obtaining terrain data on the initial route, the terrain data including slope information; detecting that the slope information of some sections on the initial route is greater than a preset slope; performing detour processing on the some sections to generate a detour route, and generating a first reference route based on the initial route and the detour trajectory.

[0059] Among them, the slope is relatively large, and it is difficult and time-consuming for firefighters to cross the forest area. When the slope is too steep, firefighters cannot cross it without proper equipment. Therefore, some sections need to be detoured.

[0060] In specific implementation, on the geographic information map, the straight-line distance between the natural fire water source and the final location is directly determined as the initial route. If the slope information of some sections of the initial route is greater than the preset slope, a detour is taken for these sections.

[0061] Among them, the specific process of detour processing includes: obtaining the contour area between the contour lines corresponding to the starting point and the end point of the partial road section; determining the detour route according to the slope information, tree coverage rate and the distance between the different road sections and the partial road section in the contour area; replacing part of the route in the initial route with the detour route to form a complete first reference route.

[0062] Among them, the specific implementation method of determining the detour route according to the slope information of different road sections in the contour area and the distance between the different road sections and the partial road section includes: obtaining the slope information of different road sections in the contour area, taking at least one road section with slope information less than a preset slope as an alternative route, and selecting the route closest to the partial road section from the alternative routes as the detour route; wherein the distance between the alternative route and the partial road section is based on the distance between the starting point of the alternative route and the starting point of the partial road section.

[0063] For example, see Figure 3 , Figure 3 A front view of the target forest area is provided for the embodiment of the present application, such as Figure 3As shown, the straight-line distance between the final position A and the natural fire water source B is the initial route L, the slope of the section Lc_d between C and D is greater than the preset slope, the contour lines h1 and h2 where the two points C and D are located are obtained, and the area between h1 and h2 is the contour area. Multiple backup routes are determined in the contour area, and the slopes of backup routes 1, 2, and 3 are all less than the preset slope. The distances Dc_e, Dc_f, and Dc_g between the starting point C of the Lc_d section and the starting point E of backup route 1, the starting point F of backup route 2, and the starting point G of backup route 3 are obtained. The shortest distance Dc_e is selected from Dc_e, Dc_f, and Dc_g, and backup route 1 is the detour route. The Lc_d section is replaced with backup route 1, so the route from the final position A to the natural fire water source B is ACEHDB.

[0064] It can be seen that in this embodiment, the initial route is firstly determined based on the straight-line distance between the final position and the natural fire water source location, and then it is determined whether to take a detour for some sections of the road based on the slope information on the initial route. This can effectively optimize the route selection for fire-fighting operations and ensure that personnel and equipment can reach the natural fire water source safely and quickly in an emergency.

[0065] Step 205: The server corrects the movement trajectory to obtain a second reference route.

[0066] In some embodiments, before the mobile trajectory is corrected to obtain the second reference route, the method also includes: detecting that the mobile trajectory is different from at least one of the first reference routes; the correcting the mobile trajectory to obtain the second reference route includes: obtaining any two adjacent first positioning coordinates and second positioning coordinates on the mobile trajectory, the section between the first positioning coordinate and the second positioning coordinate is the first section, the mobile trajectory includes multiple positioning coordinates, each positioning coordinate carries the time information when the positioning coordinate is received by the server, and the time information of the first positioning coordinate is less than the time information of the second positioning coordinate; detecting that the altitude of the second positioning coordinate is lower than the altitude of the first positioning coordinate; obtaining a third positioning coordinate whose time information is greater than the time information of the second positioning coordinate in chronological order, and the altitude of the third positioning coordinate is greater than the altitude of the first positioning coordinate; taking the section between the first positioning coordinate and the third positioning coordinate on the mobile trajectory as the first section.

[0067] Among them, in the above embodiment, the shortest path to the location of the natural fire water source is generated according to each final position, which is recorded as the first reference route. When the carrier is looking for a water source, the Beidou box records the trajectory information to form a moving trajectory, which may be different from the above multiple first reference routes. Therefore, when the moving trajectory is different from each first reference route, the moving trajectory can also be used as a feasible route in an emergency.

[0068] For specific implementation, see Figure 4 , Figure 4 A schematic diagram of a moving trajectory route correction provided in an embodiment of the present application is shown in FIG. Figure 4 As shown, the starting point of the moving trajectory 1 is I, and there are multiple positioning coordinates (K1, K2, K3, K4, K5, and the time information contained in each positioning coordinate from K1 to K5 increases in sequence) between the starting point I and the end point natural fire water source B of the moving trajectory 1. Select any two positioning coordinates, such as K1 as the first positioning coordinate and K2 as the second positioning coordinate. The section between the two positioning coordinates K1 and K2 is recorded as the first section, and the altitudes of K1 and K2 are obtained. Figure 4 The altitude of K2 is less than the altitude of K1, and the positioning coordinates after K2 and with an altitude higher than K1 are found, and the first positioning coordinate K3 with an altitude higher than K1 is used as the third positioning coordinate, and the section between K1 and K3 is used as the corrected first section. Therefore, the second reference route corresponding to the moving trajectory 1 passes through I-K1-K3-K4-K5-B.

[0069] Furthermore, if it is detected that the altitude of the positioning coordinate on the moving trajectory is greater than the altitude of the natural fire water source, the positioning coordinate is marked as the fourth positioning coordinate, the positioning coordinate before the fourth positioning coordinate is marked as the fifth positioning coordinate, and the section between the fourth positioning coordinate and the fifth positioning coordinate is the second section; the positioning coordinate whose time information is greater than the time information corresponding to the fourth positioning coordinate obtained in chronological order is marked as the sixth positioning coordinate, and the section between the fifth positioning coordinate and the sixth positioning coordinate is used as the corrected second section.

[0070] See Figure 4The moving trajectory 2 includes multiple positioning coordinates (K1, K2, K3, K4, K6, K7, and the time information contained in each positioning coordinate from K1 to K7 increases in sequence). After the fifth positioning coordinate K4, there is a fourth positioning coordinate K6. The section between K4 and K6 is the second section. The altitude of K6 and the altitude of the natural fire water source B are obtained. The altitude of K6 is higher than the altitude of point B. The altitude of the sixth positioning coordinate K7 is lower than the altitude of point B and higher than the altitude of K4. Therefore, the fifth positioning coordinate K4 is deleted, and the section between K4 and K7 is used as the corrected second section. Therefore, the second reference route corresponding to the moving trajectory 2 passes through I-K1-K3-K4-K7-B.

[0071] It can be seen that in this embodiment, by correcting the movement trajectory through the altitude relationship between different positioning coordinates and between the positioning coordinates and the natural fire water source, the path length of the movement trajectory can be shortened, the time to reach the natural fire water source can be shortened, and the fire extinguishing efficiency can be improved.

[0072] Step 206, after the server detects a forest fire in the target forest area, it determines a target route to the natural fire water source from the at least one first reference route and the second reference route based on the fire information of the fire point and the positioning information of the natural fire water source.

[0073] Step 207: The server determines the water supply volume of the mobile water source according to the fire information and the water supply capacity.

[0074] In some embodiments, the fire information includes the location information of the fire point, the fire area, the flame height, the wind speed, and the wind force, and the target route to the natural fire water source is determined from the at least one first reference route and the second reference route based on the fire information of the fire point and the location information of the natural fire water source, including: determining the fire spread speed and the fire spread direction according to the location information of the fire point and the fire area, the flame height, the wind speed, the wind force and the terrain data; determining the fire range according to the fire spread speed, the fire spread direction and the fire extinguishing efficiency; the fire extinguishing efficiency is used to characterize the time required from the discovery of the fire to the start of fire extinguishing; excluding reference routes whose distance from the fire range is less than a preset distance according to the fire range; and selecting the route closest to the natural fire water source from the remaining reference routes as the target route.

[0075] Among them, the fire front movement speed and fire front movement direction in the fire area can be determined based on existing fire spread models such as the Rothermel model according to the fire area, flame height, wind speed, wind force, and terrain data.

[0076] Among them, after determining the fire range, see Figure 5 , Figure 5 The target route diagram provided in the embodiment of the present application is as follows: Figure 5 As shown, Figure 5 It includes multiple final positions (A1, A2, A3). Assuming that Route 1 from A1 to natural fire water source B, Route 2 from A2 to B, and Route 3 from A3 to B all meet the slope requirements, along the direction of fire spread, the fire point is a first distance away from Route 1, a second distance away from Route 2, and a third distance away from Route 3. The third distance is less than the second distance and less than the first distance, and the third distance is less than the preset distance, then Route 3 is excluded, leaving Route 1 and Route 2. The length of Route 1 is greater than the length of Route 2, so Route 2 is selected as the target route.

[0077] It can be seen that in this embodiment, risky routes can be avoided according to the location of the fire point, fire hazards that may be encountered on the way to the natural fire water source can be avoided, and the safety of firefighters can be guaranteed.

[0078] In some embodiments, determining the water supply of the mobile water source based on the fire information and the water supply capacity includes: obtaining the combustible load corresponding to the fire range; determining the fire equivalent burning time and the standard fire design flow rate based on the combustible load, the fire equivalent burning time refers to the time required for the combustible load to burn according to the equivalent substitution principle in an open-air storage yard of combustible materials, and the standard fire setting flow rate is used to characterize the standard water supply flow rate required per unit time corresponding to the combustible load; determining the total water requirement for fire extinguishing based on the fire equivalent burning time and the standard fire setting flow rate; determining the water supply of the mobile water source based on the total water supply of the natural fire water source and the total water requirement for fire extinguishing.

[0079] Among them, the combustible load corresponding to the burned range is obtained from the geographic information system GIS of the target forest area, the equivalent burning time of the fire is determined according to the combustible load, and the "Firefighting Water Supply and Fire Hydrant System Design Specifications" and other specifications are queried according to the combustible load to determine the standard water supply flow rate of the combustible load in unit time in the corresponding scenario, the total water demand for fire extinguishing is determined according to the standard water supply flow rate and the equivalent burning time, and the water supply required for the mobile water source is determined according to the total water demand for fire extinguishing and the total water supply of natural fire water sources.

[0080] It can be seen that in this embodiment, by calculating the total water demand for fire extinguishing in the current fire range and combining it with the total water supply of natural fire water sources, the water supply of mobile water sources that need to be prepared can be accurately known in advance, and the water resources required for fire fighting operations can be effectively planned and managed to ensure the smooth progress of fire fighting work at the disaster site and protect the safety of personnel and property.

[0081] It can be seen that in the embodiment of the present application, the server receives the track record information from the Beidou box, the track record information includes the movement track of the carrier of the Beidou box in the target forest area and the marking information of the natural fire water source, the marking information includes the positioning information and basic attribute information of the natural fire water source, the basic attribute information includes the water source type, water source capacity, and water flow rate; the water supply capacity of the natural fire water source is determined according to the water source type, water source capacity, and water flow rate, and the water supply capacity is used to characterize the water supply time and total water supply of the natural fire water source that can continuously supply water; obtain the pre-stored geographic information map of the target forest area, and according to the geographic The topographic data of the target forest area in the information graph determines the positioning information of at least one final position of the fire truck driving into the target forest area; at least one first reference route is determined based on the positioning information of at least one final position, the positioning information of the natural fire water source, and the topographic data; the moving trajectory is corrected to obtain the second reference route; after a forest fire incident is detected in the target forest area, the target route to the natural fire water source is determined from at least one first reference route and the second reference route based on the fire information of the ignition point and the positioning information of the natural fire water source, and the water supply of the mobile water source is determined based on the fire information and the water supply capacity. Therefore, in the present application, by obtaining the fire water source information in advance and performing path planning and the required preparation of the mobile water source, compared with the method of temporarily finding a water source in the target forest area after a forest fire incident in the prior art, it can not only improve the efficiency and success rate of the fire-fighting operation, but also effectively ensure the safety of firefighters and the rational use of resources.

[0082] The above mainly introduces the scheme of the embodiment of the present application from the perspective of the execution process on the method side. It is understandable that, in order to realize the above functions, the server includes a hardware structure and / or software module corresponding to the execution of each function. It should be easily appreciated by those skilled in the art that, in combination with the units and algorithm steps of each example described in the embodiments provided herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present application.

[0083] The embodiment of the present application can divide the server into functional units according to the above method example. For example, each functional unit can be divided according to each function, or two or more functions can be integrated into one processing unit. The above integrated unit can be implemented in the form of hardware or in the form of a software program module. It should be noted that the division of units in the embodiment of the present application is schematic and is only a logical functional division, and there may be other division methods in actual implementation.

[0084] In the case of integrated units, see Figure 6 , Figure 6 This is a structural block diagram of a natural fire water source information processing device provided in an embodiment of the present application. The processing device 6 includes:

[0085] The receiving unit 601 is used to receive the track record information from the Beidou box, wherein the track record information includes the movement track of the carrier of the Beidou box in the target forest area and the marking information of the natural fire water source, wherein the marking information includes the positioning information and basic attribute information of the natural fire water source, wherein the basic attribute information includes the water source type, water source capacity, and water flow speed;

[0086] Processing unit 602 is used to determine the water supply capacity of the natural fire water source according to the water source type, the water source capacity, and the water flow rate, the water supply capacity is used to characterize the water supply duration and the total water supply of the natural fire water source that can continuously supply water; and, determine the positioning information of at least one final position of the fire truck driving into the target forest area according to the terrain data of the target forest area; and, determine at least one first reference route according to the positioning information of the at least one final position, the positioning information of the natural fire water source, and the terrain data; and, correct the moving trajectory to obtain a second reference route; and, after detecting a forest fire in the target forest area, determine the target route to the natural fire water source from the at least one first reference route and the second reference route according to the fire information of the fire point and the positioning information of the natural fire water source, and determine the water supply of the mobile water source according to the fire information and the water supply capacity.

[0087] The processing device 6 further comprises:

[0088] In some embodiments, the processing unit 602 determines the water supply capacity of the natural fire water source according to the water source type, the water source capacity, and the water flow rate, including: obtaining parameter performance of water extinguishing equipment, the parameter performance including the pumping flow rate per unit time; calculating the water supply time of the natural fire water source according to the pumping flow rate and the water source type and the water source capacity, and the water flow rate.

[0089] In some embodiments, the water source type includes a flowing water source and a non-flowing water source, and the processing unit 602 calculates the water supply time of the natural fire water source according to the pumping flow, the water source type, the water source capacity, and the water flow rate, including: if the water source type of the natural fire water source is the flowing water source, obtain the difference between the pumping flow and the water flow rate, and divide the water source capacity by the difference to obtain the water supply time; if the water source type of the natural fire water source is the non-flowing water source, divide the water source capacity by the pumping flow to obtain the water supply time.

[0090] In some embodiments, the processing unit 602 determines at least one first reference route based on the positioning information of the at least one final position, the positioning information of the natural fire water source, and the terrain data, including: for each of the at least one final position, determining the straight-line distance between each final position and the natural fire water source as the initial route; obtaining terrain data on the initial route, the terrain data including slope information; detecting that the slope information of some sections on the initial route is greater than a preset slope; performing detour processing on the some sections to generate a detour route, and generating a first reference route based on the initial route and the detour trajectory.

[0091] In some embodiments, the processing unit 602 performs detour processing on the partial road section to generate a detour route, and generates a first reference route based on the initial route and the detour trajectory, including: obtaining a contour area between contour lines corresponding to the starting point and the end point of the partial road section; determining the detour route based on the slope information of different road sections in the contour area and the distance between the different road sections and the partial road section; replacing part of the route in the initial route with the detour route to form a complete first reference route.

[0092] In some embodiments, before the processing unit 602 corrects the movement trajectory to obtain the second reference route, the method further includes: detecting that the movement trajectory is different from the at least one first reference route;

[0093] The processing unit 602 corrects the moving trajectory to obtain a second reference route, including: obtaining any two adjacent first positioning coordinates and second positioning coordinates on the moving trajectory, the section between the first positioning coordinate and the second positioning coordinate is the first section, the moving trajectory includes multiple positioning coordinates, each positioning coordinate carries the time information when the positioning coordinate is received by the server, and the time information of the first positioning coordinate is less than the time information of the second positioning coordinate; detecting that the altitude of the second positioning coordinate is lower than the altitude of the first positioning coordinate; obtaining, in chronological order, a third positioning coordinate whose time information is greater than the time information of the second positioning coordinate, and the altitude of the third positioning coordinate is greater than the altitude of the first positioning coordinate; and taking the section between the first positioning coordinate and the third positioning coordinate on the moving trajectory as the first section.

[0094] In some embodiments, the fire information includes the location information of the fire point, the fire area, the flame height, the wind speed, and the wind force. The processing unit 602 determines the target route to the natural fire water source from the at least one first reference route and the second reference route according to the fire information of the fire point and the location information of the natural fire water source, including: determining the fire spread speed according to the location information of the fire point and the fire area, the flame height, the wind speed, the wind force and the terrain data; determining the fire range according to the fire spread speed and the fire extinguishing efficiency; the fire extinguishing efficiency is used to characterize the time required from the discovery of the fire to the start of fire extinguishing; excluding reference routes whose distance from the fire range is less than a preset distance according to the fire range; and selecting the route closest to the natural fire water source from the remaining reference routes as the target route.

[0095] In some embodiments, the processing unit 602 determines the water supply of the mobile water source based on the fire information and the water supply capacity, including: obtaining the combustible load corresponding to the fire range; determining the fire equivalent burning time and the standard fire design flow rate based on the combustible load, the fire equivalent burning time refers to the time required for the combustible load to burn according to the equivalent substitution principle in an open-air storage yard of combustible materials, and the standard fire setting flow rate is used to characterize the standard water supply flow rate required per unit time corresponding to the combustible load; determining the total water requirement for fire extinguishing based on the fire equivalent burning time and the standard fire setting flow rate; determining the water supply of the mobile water source based on the total water supply of the natural fire water source and the total water requirement for fire extinguishing.

[0096] An embodiment of the present application also provides a computer storage medium, wherein the computer storage medium stores a computer program for electronic data exchange, wherein the computer program enables a computer to execute part or all of the steps of any method described in the above method embodiments, and the above computer includes an electronic device.

[0097] It can be understood that since the method embodiment and the device embodiment are different presentation forms of the same technical concept, the content of the method embodiment part in this application should be synchronously adapted to the device embodiment part and will not be repeated here.

[0098] An embodiment of the present application provides a computer-readable storage medium having a computer program / instruction stored thereon. When the computer program / instruction is executed by a processor, the steps of the method described in any possible embodiment are implemented.

[0099] It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0100] In the several embodiments provided in the present application, it should be understood that the disclosed methods, devices and systems can be implemented in other ways. For example, the device embodiments described above are merely schematic; for example, the division of the unit is only a logical function division, and there may be other division methods in actual implementation; for example, 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 through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0101] 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.

[0102] In addition, each functional unit in each embodiment of the present application can be integrated into a processing module, or each unit can be physically included separately, or two or more units can be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.

[0103] The above-mentioned integrated unit implemented in the form of a software functional unit can be stored in a computer-readable storage medium. The above-mentioned software functional unit is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform some steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: a USB flash drive, a mobile hard disk, a magnetic disk, an optical disk, a volatile memory or a non-volatile memory. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM) or a flash memory. The volatile memory can be a random access memory (RAM), which is used as an external cache. By way of example but not limitation, many forms of random access memory (RAM) are available, such as static RAM (SRAM), dynamic random access memory (DRAM), synchronous DRAM (SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (synchlink DRAM, SLDRAM) and direct memory bus random access memory (directrambus RAM, DR RAM) and other media that can store program code.

[0104] Although the present application is disclosed as above, the present application is not limited thereto. Any person skilled in the art can easily think of changes or substitutions without departing from the spirit and scope of the present application, and can make various changes and modifications, including the combination of the above-mentioned different functions and implementation steps, including software and hardware implementation methods, all of which are within the scope of protection of the present application.

Claims

1. A method for processing natural fire water source information, characterized in that: A server applied to a forest fire fighting system, wherein the forest fire fighting system further comprises a Beidou box, the server is communicatively connected with the Beidou box, and the method comprises: Receive the track record information from the Beidou box, the track record information includes the movement track of the carrier of the Beidou box in the target forest area and the marking information of the natural fire water source, the marking information includes the positioning information and basic attribute information of the natural fire water source, and the basic attribute information includes the water source type, water source capacity, and water flow speed; Determine the water supply capacity of the natural fire water source according to the water source type, the water source capacity, and the water flow rate, wherein the water supply capacity is used to characterize the water supply duration and the total water supply volume of the natural fire water source; Determine positioning information of at least one final position of a fire fighting vehicle driving into the target forest area according to the terrain data of the target forest area; Determine at least one first reference route based on the positioning information of the at least one final position, the positioning information of the natural fire water source, and the terrain data; Correcting the moving trajectory to obtain a second reference route; After a forest fire is detected in the target forest area, the target route to the natural fire water source is determined from the at least one first reference route and the second reference route based on the fire information of the fire point and the positioning information of the natural fire water source, and the water supply of the mobile water source is determined based on the fire information and the water supply capacity.

2. The method according to claim 1, characterized in that The determining of the water supply capacity of the natural fire fighting water source according to the water source type, the water source capacity, and the water flow rate comprises: Obtaining parameter performance of water extinguishing equipment, wherein the parameter performance includes a water pumping flow rate per unit time; The water supply duration of the natural fire fighting water source is calculated according to the pumping flow, the water source type, the water source capacity, and the water flow rate.

3. The method according to claim 2, characterized in that The water source types include flowing water sources and non-flowing water sources. The water supply duration of the natural fire fighting water source is calculated according to the pumping flow, the water source type, the water source capacity, and the water flow rate, including: If the water source type of the natural fire water source is the flowing water source, the difference between the pumping flow rate and the water flow velocity is obtained, and the water source capacity is divided by the difference to obtain the water supply duration; If the water source type of the natural fire water source is the non-flowing water source, the water supply time is obtained by dividing the water source capacity by the pumping flow rate.

4. The method according to claim 1, characterized in that: The determining of at least one first reference route according to the positioning information of the at least one final position, the positioning information of the natural fire water source, and the terrain data comprises: For each of the at least one final position, determining a straight-line distance between each final position and the natural fire-fighting water source as an initial route; Acquiring terrain data on the initial route, wherein the terrain data includes slope information; Detecting that the slope information of a portion of the initial route is greater than a preset slope; A detour process is performed on the partial road section to generate a detour route, and a first reference route is generated according to the initial route and the detour trajectory.

5. The method according to claim 4, characterized in that The performing detour processing on the partial road section to generate a detour route, and generating a first reference route according to the initial route and the detour trajectory, comprises: Obtaining a contour area between contour lines corresponding to a starting point and an end point of the partial road section; Determine the detour route according to the slope information of different road sections in the contour area and the distance between the different road sections and the partial road section; A portion of the initial route is replaced by the detour route to form a complete first reference route.

6. The method according to claim 1, characterized in that Before correcting the moving trajectory to obtain the second reference route, the method further includes: detecting that the movement trajectory is different from the at least one first reference route; The step of correcting the moving trajectory to obtain a second reference route includes: Acquire any two adjacent first positioning coordinates and second positioning coordinates on the moving trajectory, where the section between the first positioning coordinate and the second positioning coordinate is a first section, the moving trajectory includes a plurality of positioning coordinates, each positioning coordinate carries time information when the positioning coordinate is received by the server, and the time information of the first positioning coordinate is less than the time information of the second positioning coordinate; Detecting that the altitude of the second positioning coordinates is lower than the altitude of the first positioning coordinates; Acquire, in chronological order, a third positioning coordinate whose time information is greater than the time information of the second positioning coordinate, wherein the altitude of the third positioning coordinate is greater than the altitude of the first positioning coordinate; The section between the first positioning coordinates and the third positioning coordinates on the moving trajectory is used as the first section.

7. The method according to claim 1, characterized in that The fire information includes the location information of the fire point, the fire area, the flame height, the wind speed, and the wind force. The target route to the natural fire water source is determined from the at least one first reference route and the second reference route according to the fire information of the fire point and the location information of the natural fire water source, including: Determine the fire spreading speed according to the location information of the fire point and the fire area, the flame height, the wind speed, the wind force and the terrain data; The fire range is determined according to the fire spreading speed and the fire extinguishing efficiency; the fire extinguishing efficiency is used to characterize the time required from the discovery of the fire to the start of fire extinguishing; Excluding reference routes whose distance from the fire range is less than a preset distance according to the fire range; A route closest to the natural fire water source is selected from the remaining reference routes as the target route.

8. The method according to claim 7, characterized in that The determining the water supply amount of the mobile water source according to the fire information and the water supply capacity includes: Obtaining the combustible load corresponding to the fire range; Determine the fire equivalent burning time and the standard fire design flow rate according to the combustible load, the fire equivalent burning time refers to the time required for the combustible load to burn according to the principle of equivalent substitution in an open-air storage yard of combustible materials, and the standard fire setting flow rate is used to characterize the standard water supply flow rate required per unit time corresponding to the combustible load; Determine the total water requirement for fire extinguishing according to the fire equivalent burning time and the standard fire setting flow rate; The water supply of the mobile water source is determined based on the total water supply of the natural fire water source and the total water demand for fire extinguishing.

9. A forest fire fighting system, characterized in that: It includes a server and a Beidou box, wherein the server is communicatively connected to the Beidou box, and the server is used to execute the step instructions in the method as described in any one of claims 1-8.

10. A device for processing natural fire water source information, characterized in that: The device comprises: A receiving unit, configured to receive track record information from the Beidou box, wherein the track record information includes the movement track of the carrier of the Beidou box in the target forest area and the marking information of the natural fire water source, wherein the marking information includes the positioning information and basic attribute information of the natural fire water source, wherein the basic attribute information includes the water source type, water source capacity, and water flow speed; A processing unit is used to determine the water supply capacity of the natural fire water source according to the water source type, the water source capacity, and the water flow rate, the water supply capacity being used to characterize the water supply duration and the total water supply volume of the natural fire water source that can continuously supply water; and, according to the terrain data of the target forest area, determine the positioning information of at least one final position of the fire fighting vehicle driving into the target forest area; and, according to the positioning information of the at least one final position, the positioning information of the natural fire water source, and the terrain data, determine at least one first reference route; and, correct the moving trajectory to obtain a second reference route; and, after detecting a forest fire in the target forest area, determine the target route to the natural fire water source from the at least one first reference route and the second reference route according to the fire information of the ignition point and the positioning information of the natural fire water source, and, determine the water supply volume of the mobile water source according to the fire information and the water supply capacity.

Images