Emergency communication command method and system for forest fire rescue workers

Abstract

The invention provides an emergency communication command method and system for forest fire rescue personnel, and the method comprises the steps: receiving real-time fire situation information from a server through Beidou positioning equipment, and enabling the real-time fire situation information to comprise a real-time fire risk isolation belt; periodically acquiring positioning information of rescue workers; when it is detected that the positioning information is located in the real-time fire behavior risk isolation belt, prompt information is sent out, and the prompt information is used for prompting rescue workers to evacuate to the outside of the real-time fire behavior risk isolation belt; and when it is detected that the positioning information is located in the real-time fire behavior risk isolation belt for more than a preset time length, the on-site command equipment is linked to dispatch the prompt equipment to prompt the rescue personnel in the real-time fire behavior risk isolation belt, so that the rescue personnel rapidly evacuate from the high-risk area, and the life safety of the rescue personnel is guaranteed.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to an emergency communication command method and system for forest fire rescue personnel. Background Art

[0002] In forest fire fighting scenarios, due to the chaotic and noisy environment at the fire scene, the audio-visual perception pathways of the rescuers in each on-site rescue team may be affected by the environment and they may ignore the early warning information in high-risk locations, thereby delaying their withdrawal and staying in high-risk areas, threatening the lives of the rescuers. Summary of the invention

[0003] The present application provides an emergency communication command method and system for forest fire rescue personnel, which reports the location information of rescue personnel in real time through Beidou positioning equipment, and when it is detected that the location information of the rescue personnel is within the real-time fire risk isolation zone, the on-site command equipment dispatching reminder equipment is linked to remind the rescue personnel in the real-time fire risk isolation zone, so that they can quickly evacuate the high-risk area and ensure the life safety of the rescue personnel.

[0004] In the first aspect, the present application provides an emergency communication and command method for forest fire rescue personnel, which is applied to the Beidou positioning device in the emergency communication and command system of forest fire rescue personnel. The emergency communication and command system for forest fire rescue personnel includes a server, an on-site command device and the Beidou positioning device worn by the rescue personnel. The method includes: receiving real-time fire situation information from the server, the real-time fire situation information including a real-time fire risk isolation zone; periodically obtaining the positioning information of the rescue personnel; detecting that the positioning information is located within the real-time fire risk isolation zone, issuing a prompt information, and the prompt information is used to prompt the rescue personnel to evacuate outside the real-time fire risk isolation zone; detecting that the positioning information is located within the real-time fire risk isolation zone for more than a preset time, sending an emergency prompt instruction to the on-site command device, and the emergency prompt instruction is used to instruct the on-site command device to dispatch a prompt device to the location of the rescue personnel to prompt the rescue personnel to evacuate outside the real-time fire risk isolation zone.

[0005] In the second aspect, the present application provides a Beidou positioning device, including: a receiving unit, used to receive real-time fire situation information from a server, the real-time fire situation information including a real-time fire risk isolation zone; and periodically obtaining the positioning information of rescue personnel; a processing unit, detecting that the positioning information is within the real-time fire risk isolation zone, issuing a prompt message, the prompt message being used to prompt the rescue personnel to evacuate outside the real-time fire risk isolation zone; and detecting that the positioning information is within the real-time fire risk isolation zone for more than a preset time, sending an emergency prompt instruction to an on-site command device, the emergency prompt instruction being used to instruct the on-site command device to dispatch a prompt device to the location of the rescue personnel to prompt the rescue personnel to evacuate outside the real-time fire risk isolation zone.

[0006] In the third aspect, the present application provides an emergency communication command system for forest fire rescue personnel, characterized in that it includes a server, on-site command equipment, and the Beidou positioning device worn by rescue personnel, and the Beidou positioning device is used to execute the step instructions in the method described in any one of the first aspects.

[0007] In a fourth aspect, the present application provides a server, comprising a processor and a memory, wherein the memory stores one or more programs, and the one or more programs are called by the processor to execute the step instructions in the method as described in any one of the first aspects.

[0008] It can be seen that in the present application, real-time fire situation information is received from the server through the Beidou positioning device, and the real-time fire situation information includes the real-time fire risk isolation zone; the positioning information of the rescue personnel is obtained periodically; when the positioning information is detected to be within the real-time fire risk isolation zone, a prompt message is issued, and the prompt message is used to prompt the rescue personnel to evacuate outside the real-time fire risk isolation zone; when the positioning information is detected to be within the real-time fire risk isolation zone for more than a preset time, the on-site command equipment is linked to the dispatch prompt equipment to prompt the rescue personnel in the real-time fire risk isolation zone, so that they can quickly evacuate the high-risk area and ensure the life safety of the rescue personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments are 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 creative work. Among them, Figure 1 A schematic diagram of a scene of an emergency communication command system for forest fire rescue personnel provided in an embodiment of the present application; Figure 2A schematic diagram of the structure of a server provided in an embodiment of the present application; Figure 3 A structural block diagram of an emergency communication command system for forest fire rescue personnel provided in an embodiment of the present application; Figure 4 A flowchart of an emergency communication command method for forest fire rescue personnel provided in an embodiment of the present application; Figure 5 A schematic diagram of a display page for real-time fire risk isolation zones and real-time fire extinguishing encirclement routes provided in an embodiment of the present application; Figure 6 A schematic diagram of a navigation route provided in an embodiment of the present application; Figure 7 A schematic diagram of the process of creating an initial fire risk isolation zone provided in an embodiment of the present application; Figure 8 A schematic diagram of the process of creating an initial fire extinguishing encirclement route provided in an embodiment of the present application; Fig. 9 A schematic diagram of the first area and the second area and their combustion directions provided in an embodiment of the present application; Fig.10 A schematic diagram of the real-time isolation zone of the first area and the second area and the real-time reference fire risk isolation zone provided in an embodiment of the present application; Fig.11 A block diagram of the functional units of the Beidou positioning device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0010] 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.

[0011] 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 in some embodiments also includes steps or units that are not listed, or in some embodiments also includes other steps or units inherent to these processes, methods, products or devices.

[0012] 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.

[0013] 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.

[0014] 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.

[0015] 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.

[0016] 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. The present application provides a parameter input method and an infusion device for an infusion device. By setting an input mode switching control on a parameter editing interface, medical staff can flexibly select a suitable input mode from at least two input modes for parameter input according to actual applications, thereby improving the efficiency and accuracy of parameter input.

[0017] In order to solve the above problems, the present application provides an emergency communication command method and system for forest fire rescue personnel, which reports the location information of rescue personnel in real time through Beidou positioning equipment, and when it is detected that the location information of the rescue personnel is within the real-time fire risk isolation zone, the on-site command equipment dispatching reminder equipment is linked to remind the rescue personnel in the real-time fire risk isolation zone, so that they can quickly evacuate the high-risk area and ensure the life safety of the rescue personnel.

[0018] 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.

[0019] See also Figure 1 , Figure 1 A scenario diagram of an emergency communication command system for forest fire rescue personnel provided in an embodiment of the present application, the emergency communication command system 1 for forest fire rescue personnel includes a server 10, an on-site command device 20 and the Beidou positioning device 30 worn by the rescue personnel, and the server 10, the on-site command device 20 and the Beidou positioning device 30 are all communicatively connected.

[0020] The server 10 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 10 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 (CDNs), and big data and artificial intelligence platforms.

[0021] For details, see Figure 2 , Figure 2 A schematic diagram of the structure of the server provided in the embodiment of the present application, such as Figure 2 As shown, the server 10 includes a processor 11, a memory 13, a communication interface 12, and one or more programs 131. Among them, the one or more programs 131 are stored in the memory 13 and are configured to be executed by the processor 11, and the one or more programs 131 include instructions for executing any step in the following method embodiment.

[0022] The Beidou positioning device 30 may include a front-end device applied to the user side and capable of realizing functions such as positioning, data collection, and data transmission, and may be a user device such as a mobile phone, handheld device, or wearable device with positioning function. Figure 1 A watch is shown.

[0023] Among them, the on-site command device 20 can specifically include a front-end device applied to the user side and capable of realizing functions such as data collection and data transmission. It can be a mobile phone, smart phone, laptop computer, digital broadcast receiver, personal digital assistant (PDA), tablet computer (PAD) and other user equipment (User Equipment, UE), handheld device, vehicle-mounted device, wearable device, computing device or other processing equipment connected to a wireless modem, mobile station (Mobile Station, MS), mobile terminal, etc.

[0024] Among them, see Figure 3 The emergency communication command system 1 for forest fire rescue personnel also includes a prompt device 40. In the present application, the prompt device 40 may be a drone. The emergency communication command system 1 for forest fire rescue personnel also includes a fire monitoring device 50. The fire monitoring device 50 includes but is not limited to various meteorological sensors (such as temperature, humidity, wind speed, etc.), video monitoring systems, satellite remote sensing monitoring systems, and drone inspection systems. By using a combination of multiple fire monitoring devices 50, it is possible to timely gain insight into fire situation information so that the server 10 can timely predict changes in fire trends.

[0025] See also Figure 4 , Figure 4 A flowchart of an emergency communication command method for forest fire rescue personnel provided in an embodiment of the present application is applied to Figure 1 The Beidou positioning equipment shown, such as Figure 4 As shown, the method includes: Step S401: Beidou positioning equipment receives real-time fire situation information from the server.

[0026] Among them, the real-time fire situation information includes a real-time fire risk isolation zone. The real-time fire risk isolation zone can characterize the danger level of the fire-fighting task. The area within the real-time fire risk isolation zone is a high-risk area, and the area outside the real-time fire risk isolation zone is a safe area. The server can dynamically adjust the real-time fire risk isolation zone according to the actual fire situation of the fire scene. For example, if the fire expands, it is necessary to further expand the real-time fire risk isolation zone outside the fire area. If the fire decreases, it is necessary to shrink the real-time fire risk isolation zone into the fire area until the fire is successfully extinguished. During the fire-fighting process, rescuers need to stay outside the real-time fire risk isolation zone to perform fire-fighting tasks. Therefore, if the fire risk isolation zone is updated, causing the rescuers to be in the fire risk isolation zone, the personal danger level of the rescuers will directly increase.

[0027] Furthermore, if a firefighting mission is performed at night, the server can also send real-time fire situation information to the on-site command equipment, which generates the cruise track of the drone according to the real-time fire risk isolation zone, and controls the drone to fly along the cruise track with the highlight prompt device to achieve real-time location prompts on site. The cruise track of the drone changes with the update of the real-time fire risk isolation zone.

[0028] Step S402: Beidou positioning equipment periodically obtains the positioning information of the rescue personnel.

[0029] Step S403: The Beidou positioning device detects that the positioning information is within the real-time fire risk isolation zone and issues a prompt message.

[0030] Among them, when the Beidou positioning device detects that the current positioning information is located within the real-time fire risk isolation zone, the Beidou positioning device such as a watch will perform voice, vibration, sound and light and other prompt operations to prompt rescue personnel to evacuate outside the real-time fire risk isolation zone.

[0031] Step S404: The Beidou positioning device detects that the positioning information is located in the real-time fire risk isolation zone for more than a preset time period, and sends an emergency prompt instruction to the on-site command device.

[0032] Among them, due to the chaotic and noisy environment in the fire-fighting scene, the audiovisual perception pathways of the rescuers of each on-site rescue team may be affected by the environment and ignore the early warning prompt information of the high-risk location. After the Beidou positioning device gives a prompt, if the current positioning information is still located in the real-time fire risk isolation zone for more than the preset time, the Beidou positioning device sends an emergency prompt instruction to the on-site command device, wherein the emergency prompt instruction is used to instruct the on-site command device to dispatch the prompt device to the location of the rescue personnel to prompt the rescue personnel to evacuate outside the real-time fire risk isolation zone. After receiving the emergency prompt instruction, the on-site command device controls at least one prompt device, such as a drone carrying a highlight prompt device, to fly over the rescue personnel and hover to give a retreat prompt.

[0033] It can be seen that in the present application, real-time fire situation information is received from the server through the Beidou positioning device, and the real-time fire situation information includes the real-time fire risk isolation zone; the positioning information of the rescue personnel is obtained periodically; when the positioning information is detected to be within the real-time fire risk isolation zone, a prompt message is issued, and the prompt message is used to prompt the rescue personnel to evacuate outside the real-time fire risk isolation zone; when the positioning information is detected to be within the real-time fire risk isolation zone for more than a preset time, the on-site command equipment is linked to the dispatch prompt equipment to prompt the rescue personnel in the real-time fire risk isolation zone, so that they can quickly evacuate the high-risk area and ensure the life safety of the rescue personnel.

[0034] In some embodiments, the real-time fire situation information also includes a real-time fire extinguishing encirclement route. After receiving the real-time fire situation information from the server, the method also includes: displaying the real-time fire risk isolation zone and the real-time fire extinguishing encirclement route on the display screen of the Beidou positioning device; after receiving a trigger operation on the fire extinguishing encirclement route, displaying the navigation route from the current position of the Beidou positioning device to the real-time fire extinguishing encirclement route.

[0035] Specifically, after receiving the real-time fire risk isolation zone and the real-time fire extinguishing encirclement route, the Beidou positioning device displays the real-time fire risk isolation zone and the real-time fire extinguishing encirclement route on the display screen, such as Figure 5 After the rescue personnel trigger the real-time fire-fighting encirclement route, the navigation route from the Beidou positioning device to the real-time fire-fighting encirclement route is displayed on the display screen. Figure 6 Among them, the real-time fire-fighting encirclement route also includes information such as the fire-fighting starting point, fire-fighting direction, and personnel deployment. Before reaching any point on the real-time fire-fighting encirclement route, the real-time fire-fighting encirclement route is triggered to navigate to the fire-fighting starting point; after reaching the fire-fighting starting point, the rescue personnel click on the corresponding fire-fighting task to navigate to the corresponding fire-fighting task execution location.

[0036] Among them, the real-time fire extinguishing encirclement route is outside the real-time fire risk isolation zone. When the real-time fire risk isolation zone changes dynamically, the real-time fire extinguishing encirclement route is also dynamically adjusted accordingly.

[0037] In some embodiments, the emergency communication command system for forest fire rescue personnel further includes a fire monitoring device, and the process of generating the real-time fire situation information specifically includes the following steps a to f: Step a, the server receives the location of the fire point and the fire range from the fire monitoring equipment; and obtains the isolation zone information of the target forest area where the fire point is located.

[0038] The isolation zone information includes the location information of natural isolation zones and artificial isolation zones.

[0039] Among them, natural isolation belts such as rivers and mountains, and artificial isolation belts such as firebreaks and open spaces can prevent the further spread of fire. If these existing isolation belts can be used in the process of fire fighting, the workload of rescue workers can be reduced.

[0040] Step b: The server generates an initial fire risk isolation zone and an initial fire extinguishing encirclement route according to the location of the fire point, the fire range, and the isolation zone information.

[0041] In some embodiments, the generating of the initial fire risk isolation zone and the initial fire extinguishing encirclement route according to the fire point location, the fire range, and the isolation zone information includes the following steps b1 to b5: Step b1, the server generates a reference isolation zone with the fire point as the center and a first preset distance from the fire range.

[0042] See Figure 7 In a, the server takes the fire point A as the center and generates a reference isolation zone S2 with a first preset distance d1 from the fire range S1.

[0043] Among them, the first preset distance is a safe distance from the fire source and can be set according to actual experience.

[0044] Step b2: The server determines, based on the isolation zone information, whether there is a natural isolation zone or an artificial isolation zone within a range of a second preset distance from the reference isolation zone and with the fire point as the center.

[0045] Step b3: if it exists, adjust the range of the reference isolation zone according to the natural isolation zone or the artificial isolation zone to obtain the initial fire risk isolation zone.

[0046] See Figure 7 In a, if there is an existing isolation zone B within the second preset distance d2 of the reference isolation zone S2, then the initial fire risk isolation zone S3 is obtained by adjusting the existing isolation zone B within the reference isolation zone S2. Figure 7 Middle b.

[0047] Therefore, if there is a natural isolation zone or an artificial isolation zone within the second preset distance of the reference isolation zone, the server will adjust the range of the reference isolation zone according to the actual positions of these isolation zones, change the shape of the reference isolation zone, and form an initial fire risk isolation zone.

[0048] Step b4: If the server does not exist, the reference isolation zone is determined as the initial fire risk isolation zone.

[0049] If no natural or artificial isolation zone is found within the second preset distance of the reference isolation zone, the server directly determines the reference isolation zone S2 generated in step b1 as the initial fire risk isolation zone S3. Figure 7 Middle c.

[0050] Step b5, the server determines the initial fire extinguishing encirclement route based on the initial fire risk isolation zone.

[0051] Finally, the server plans the initial fire extinguishing encirclement route based on the determined initial fire risk isolation zone. Figure 7Taking the initial fire risk isolation zone S3 in b as an example, the initial fire extinguishing encirclement route S4 is generated. Figure 8 The initial encirclement route includes the starting point of the fire extinguishing and the direction of the fire extinguishing. This route will guide rescue personnel and equipment on how to carry out fire extinguishing operations around the isolation belt to most effectively control the fire and ultimately extinguish the fire.

[0052] Step c: The server receives the real-time fire scene monitoring data from the fire monitoring equipment.

[0053] Among them, the real-time fire scene monitoring data includes wind direction, wind speed, humidity, fire scene temperature, and flame height.

[0054] Step d: the server obtains geographic information data of the target forest area.

[0055] Among them, the geographic information data includes elevation, slope, slope direction, landform type, and combustible material load.

[0056] Among them, elevation is the most basic information provided by the digital elevation model (DEM). According to the elevation, the landforms can be classified into plains, mountains, hills, basins and plateaus. Elevation has a direct impact on the precipitation, temperature, humidity, vegetation distribution and light intensity in the region. The slope refers to the degree of inclination of the slope, which affects the speed and direction of fire spread. Generally, the slope is divided into 6 levels according to the size of the slope: flat slope (0-5°), gentle slope (5-15°), slope (15-25°), steep slope (25-35°), steep slope (35-45°) and dangerous slope (>45°). In areas with steep slopes, the fire develops rapidly and is difficult to extinguish. Slope direction usually refers to the direction of the slope from high to low, which is divided into 9 levels: north slope (338-22°), northeast slope (23-67°), east slope (68-112°), southeast slope (113-157°), south slope (158-202°), southwest slope (203-247°), west slope (248-292°), northwest slope (293-337°), and no slope direction (<0°). Different slope directions receive different solar radiation. Over time, different slope directions lead to different solar exposure times. Compared with the north slope, the south slope receives more solar exposure time and can absorb more heat. At the same height, the temperature of the south slope is higher than that of the north slope, resulting in drier and more flammable combustibles on the surface of the south slope. The spread of forest fires is affected by both slope direction and real-time meteorological factors, and the occurrence of forest fires will also generate corresponding hot air currents, which accelerates the spread of fires. Slope position refers to the geomorphic part of the slope, which also has a great influence on forest fire intensity and fire behavior. When a mountain fire occurs, it is divided into six categories: plain, valley, downhill, mid-slope, uphill and ridge. The combustibles on the uphill are subject to the strong radiant heat from the downhill, and the water evaporates in a short period of time, making them more easily ignited, increasing the spread of forest fires.

[0057] The combustible load refers to the total amount of all materials that may burn (such as trees, shrubs, herbs, fallen leaves, etc.) in a certain area. These materials can be used as fuel when a fire occurs, affecting the size and spread of the fire.

[0058] In step e, the server determines the direction and speed of fire spread according to the real-time monitoring data of the fire scene and the geographic information data.

[0059] Among them, the fire spread direction and fire spread speed in the fire area can be determined based on existing fire spread models such as the Rothermel model, according to real-time fire monitoring data and geographic information data. The basic formula of the Rothermel model is as follows:

[0060] Where: I R is the reaction intensity (kJ / (m 2 ·min)); ζ is the spreading rate; Φ W , Φ S are wind speed and slope correction coefficients respectively; P b is the density of the combustible material on the ground (kg / m3); ε is the effective heating coefficient of the combustible material; Q ig The amount of heat required to ignite a unit mass of combustible material.

[0061] It can be understood that the reaction intensity is closely related to the fire temperature, flame height and wind speed. High temperature and strong wind will increase the reaction intensity and make the fire more violent. The spread rate is related to wind speed, slope and terrain type. Strong wind and large slope will increase the spread rate, while different types of terrain will affect the spread path of the fire. The density of surface combustibles is related to the density of the combustible load. The effective heating coefficient of combustibles is related to humidity and wind speed. Low humidity and high wind speed will increase the heating coefficient and accelerate the combustion of combustibles. The heat required to ignite a unit mass of combustibles is related to the fire temperature and humidity. In a high temperature and low humidity environment, less heat is required for ignition and the fire is more likely to spread.

[0062] Step f, the server dynamically adjusts the initial fire risk isolation zone and the initial fire extinguishing encirclement route according to the fire spread direction, the fire spread speed, and the isolation zone information to obtain the real-time fire extinguishing encirclement route and the real-time fire risk isolation zone.

[0063] In some embodiments, dynamically adjusting the initial fire risk isolation zone and the initial fire extinguishing encirclement route according to the fire spread direction, the fire spread speed, and the isolation zone information to obtain the real-time fire extinguishing encirclement route and the real-time fire risk isolation zone includes the following steps f1 to f8: Step f1, the server divides the initial fire risk isolation zone into a first area and a second area according to the fire spread direction, the burning direction of the first area is opposite to the fire spread direction, and the burning direction of the second area is the same as the fire spread direction.

[0064] The calculated fire spread speed can be understood as the average speed in the direction of fire spread. Theoretically, in the absence of wind and slope, the fire can spread evenly in all directions. Therefore, in actual situations, the fire mainly spreads along the direction of fire spread, but the fire will still spread more or less in other directions.

[0065] Therefore, see Fig. 9 In a, the vertical line C2 in the fire spreading direction C1 divides the initial fire risk isolation zone S3 into the first area D1 and the second area D2; see Fig. 9 In b, for the first area D1, the burning direction is mainly C3; for the second area D2, the burning direction is mainly C4, which is the same direction as the fire spreading direction C1.

[0066] Step f2, the server determines a first spreading speed of the first area and a second spreading speed of the second area according to the relationship between the fire spreading speed and the wind force, specifically: For the first area, if the fire spreading speed is greater than the wind force in the fire spreading direction, determining a first spreading speed of the first area in its burning direction according to the difference between the fire spreading speed and the wind force in the fire spreading direction; If the fire spreading speed is less than the wind force in the fire spreading direction, the first spreading speed of the first area in its burning direction is determined to be a first threshold, wherein the first threshold may be a number close to 0.

[0067] For the second area, a second spreading speed of the second area in the burning direction thereof is determined according to the sum of the fire spreading speed and the wind force in the fire spreading direction.

[0068] Step f3: the server determines a real-time isolation zone of the first area according to the first spreading speed and the duration of the fire; and determines a real-time isolation zone of the second area according to the second spreading speed and the duration of the fire.

[0069] The first fire spread distance is calculated according to the first spread speed and the duration of the fire, and the initial fire risk isolation zone of the first area is adjusted according to the first fire spread distance to obtain the real-time isolation zone S5 of the first area. And the second fire spread distance is calculated according to the second spread speed and the duration of the fire, and the initial fire risk isolation zone of the second area is adjusted according to the second fire spread distance to obtain the real-time isolation zone S6 of the second area. Fig.10 Middle a.

[0070] Step f4: the server generates a real-time reference fire risk isolation zone S7 based on the real-time isolation zones of the first area and the second area. Fig.10 Middle b.

[0071] Step f5: The server determines whether there is a natural isolation zone or an artificial isolation zone within the second preset distance from the real-time reference fire risk isolation zone based on the isolation zone information.

[0072] Step f6: if it exists, adjusting the real-time reference fire risk isolation zone according to the natural isolation zone or the artificial isolation zone to obtain the real-time fire risk isolation zone, specifically: Obtaining angle information of the natural isolation zone or the artificial isolation zone relative to the fire spreading direction; If the angle is less than 45°, the natural isolation zone or the artificial isolation zone is determined to be an invalid isolation zone, and the real-time reference fire risk isolation zone is determined to be the real-time fire risk isolation zone; If the angle is between 45° and 90°, the natural isolation zone or the artificial isolation zone is determined to be a valid isolation zone, and the corresponding part of the natural isolation zone or the artificial isolation zone in the real-time reference fire risk isolation is replaced with the natural isolation zone or the artificial isolation zone.

[0073] Among them, when the angle of the isolation belt is less than 45°, the overlap between the isolation belt and the direction of fire spread is high, and the blocking effect it can play is small. At this time, the existing natural isolation belt or artificial isolation belt will be deemed as an invalid isolation belt, and the server can directly generate a real-time fire risk isolation belt based on the real-time reference fire risk isolation belt; when the angle of the isolation belt is between 45° and 90°, the isolation belt can play a blocking role against the fire. The server can adjust the real-time reference fire risk isolation belt according to the natural isolation belt or artificial isolation belt to obtain the real-time fire risk isolation belt.

[0074] Step f7: if it does not exist, the real-time reference fire risk isolation zone is determined as the real-time fire risk isolation zone.

[0075] Step f8, the server adjusts the real-time fire extinguishing encirclement route according to the real-time fire risk isolation zone.

[0076] Among them, the real-time fire extinguishing encirclement route is set outside the real-time fire risk isolation zone.

[0077] 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.

[0078] 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 module. 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, which is only a logical function division, and there may be other division methods in actual implementation.

[0079] In the case of integrated units, see Fig.11 , Fig.11 A functional unit structure block diagram of a Beidou positioning device provided in an embodiment of the present application, the Beidou positioning device 30 includes: The receiving unit 301 is used to receive real-time fire situation information from the server, wherein the real-time fire situation information includes real-time fire risk isolation zone; and periodically obtain the location information of the rescue personnel; The processing unit 302 detects that the positioning information is within the real-time fire risk isolation zone, and issues a prompt message, wherein the prompt message is used to prompt the rescue personnel to evacuate outside the real-time fire risk isolation zone; and, upon detecting that the positioning information is within the real-time fire risk isolation zone for more than a preset time, sends an emergency prompt instruction to an on-site command device, wherein the emergency prompt instruction is used to instruct the on-site command device to dispatch a prompt device to the location of the rescue personnel to prompt the rescue personnel to evacuate outside the real-time fire risk isolation zone.

[0080] It can be seen that in the present application, real-time fire situation information is received from the server through the Beidou positioning device, and the real-time fire situation information includes the real-time fire risk isolation zone; the positioning information of the rescue personnel is obtained periodically; when the positioning information is detected to be within the real-time fire risk isolation zone, a prompt message is issued, and the prompt message is used to prompt the rescue personnel to evacuate outside the real-time fire risk isolation zone; when the positioning information is detected to be within the real-time fire risk isolation zone for more than a preset time, the on-site command equipment is linked to the dispatch prompt equipment to prompt the rescue personnel in the real-time fire risk isolation zone, so that they can quickly evacuate the high-risk area and ensure the life safety of the rescue personnel.

[0081] In some embodiments, the real-time fire situation information also includes a real-time fire extinguishing encirclement route. After the receiving unit 301 receives the real-time fire situation information from the server, the processing unit 302 is also used to display the real-time fire risk isolation zone and the real-time fire extinguishing encirclement route on the display screen of the Beidou positioning device; after receiving a trigger operation on the fire extinguishing encirclement route, the navigation route from the current position of the Beidou positioning device to the real-time fire extinguishing encirclement route is displayed.

[0082] In some embodiments, the forest fire rescue personnel emergency communication command system also includes a fire monitoring device, and the real-time fire situation information generation process specifically includes: receiving the fire point location and the fire range from the fire monitoring device; and obtaining the isolation belt information of the target forest area where the fire point location is located, and the isolation belt information includes the location information of natural isolation belts and artificial isolation belts; generating an initial fire risk isolation belt and an initial fire extinguishing encirclement route according to the fire point location, the fire range, and the isolation belt information; receiving the real-time fire scene monitoring data from the fire monitoring device The real-time monitoring data of the fire scene includes wind direction, wind speed, humidity, fire temperature, and flame height; the geographic information data of the target forest area is obtained, and the geographic information data includes elevation, slope, slope aspect, land feature type, and combustible load; the fire spread direction and fire spread speed are determined according to the real-time monitoring data of the fire scene and the geographic information data; the initial fire risk isolation zone and the initial fire extinguishing encirclement route are dynamically adjusted according to the fire spread direction, the fire spread speed, and the isolation zone information to obtain the real-time fire extinguishing encirclement route and the real-time fire risk isolation zone.

[0083] In some embodiments, the initial fire risk isolation zone and the initial fire extinguishing encirclement route are generated according to the fire point location, the fire range, and the isolation zone information, including: generating a reference isolation zone with the fire point location as the center and a first preset distance from the fire range; determining whether there is a natural isolation zone or an artificial isolation zone within the range of a second preset distance from the reference isolation zone with the fire point location as the center according to the isolation zone information; if so, adjusting the range of the reference isolation zone according to the natural isolation zone or the artificial isolation zone to obtain the initial fire risk isolation zone; if not, determining the reference isolation zone as the initial fire risk isolation zone; and determining the initial fire extinguishing encirclement route according to the initial fire risk isolation zone.

[0084] In some embodiments, the dynamically adjusting the initial fire risk isolation zone and the initial fire extinguishing encirclement route according to the fire spread direction, the fire spread speed, and the isolation zone information to obtain the real-time fire extinguishing encirclement route and the real-time fire risk isolation zone includes: dividing the initial fire risk isolation zone into a first area and a second area according to the fire spread direction, the burning direction of the first area is opposite to the fire spread direction, and the burning direction of the second area is the same as the fire spread direction; determining a first spreading speed of the first area and a second spreading speed of the second area according to the relationship between the fire spread speed and the wind force; determining a first spreading speed of the first area according to the first spreading speed and the fire ignition time a real-time isolation zone of a domain; and, determining the real-time isolation zone of the second area according to the second spreading speed and the fire duration; generating a real-time reference fire risk isolation zone according to the real-time isolation zones of the first area and the second area; determining, according to the isolation zone information, whether there is a natural isolation zone or an artificial isolation zone within the second preset distance from the real-time reference fire risk isolation zone; if so, adjusting the real-time reference fire risk isolation zone according to the natural isolation zone or the artificial isolation zone to obtain the real-time fire risk isolation zone; if not, determining the real-time reference fire risk isolation zone as the real-time fire risk isolation zone; and adjusting the real-time fire extinguishing encirclement route according to the real-time fire risk isolation zone.

[0085] In some embodiments, determining a first spreading speed of the first area and a second spreading speed of the second area according to the relationship between the fire spreading speed and the wind force includes: for the first area, if the fire spreading speed is greater than the wind force in the fire spreading direction, determining the first spreading speed of the first area in its burning direction according to the difference between the fire spreading speed and the wind force in the fire spreading direction; if the fire spreading speed is less than the wind force in the fire spreading direction, determining the first spreading speed of the first area in its burning direction as a first threshold; for the second area, determining the second spreading speed of the second area in its burning direction according to the sum of the fire spreading speed and the wind force in the fire spreading direction.

[0086] In some embodiments, adjusting the real-time reference fire risk isolation zone according to the natural isolation zone or the artificial isolation zone to obtain the real-time fire risk isolation zone includes: obtaining the angle information of the natural isolation zone or the artificial isolation zone relative to the fire spread direction; if the angle is less than 45°, determining that the natural isolation zone or the artificial isolation zone is an invalid isolation zone, and determining the real-time reference fire risk isolation zone as the real-time fire risk isolation zone; if the angle is between 45° and 90°, determining that the natural isolation zone or the artificial isolation zone is a valid isolation zone, and replacing the corresponding part of the natural isolation zone or the artificial isolation zone in the real-time reference fire risk isolation with the natural isolation zone or the artificial isolation zone.

[0087] 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.

[0088] It should be noted that, for the aforementioned method embodiments, for the sake of simplicity, they are all expressed as a series of action combinations, but those skilled in the art should be aware that the present application is not limited by the described order of actions, because according to the present application, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present application.

[0089] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0090] In the several embodiments provided in the present application, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are only schematic, such as the division of the above-mentioned units, which is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection of devices or units can be electrical or other forms.

[0091] The units described above 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.

[0092] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0093] If the above-mentioned integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable memory. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a memory, including a number of instructions to enable a computer device (which can be a personal computer, server or network device, etc.) to execute all or part of the steps of the above-mentioned methods in each embodiment of the present application. The aforementioned memory includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, disk or optical disk and other media that can store program codes.

[0094] Those skilled in the art will appreciate that all or part of the steps in the various methods of the above embodiments may be completed by instructing related hardware through a program, and the program may be stored in a computer-readable memory, which may include a flash drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc.

[0095] The embodiments of the present application are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. At the same time, for general technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A method for emergency communication command of forest fire rescue personnel, characterized in that: A Beidou positioning device applied to an emergency communication command system for forest fire rescue personnel, the emergency communication command system for forest fire rescue personnel comprising a server, an on-site command device and the Beidou positioning device worn by rescue personnel, the method comprising: Receiving real-time fire situation information from the server, the real-time fire situation information including real-time fire risk isolation zone; Periodically obtaining the location information of the rescuer; Detecting that the positioning information is located within the real-time fire risk isolation zone, issuing a prompt message, wherein the prompt message is used to prompt the rescue personnel to evacuate outside the real-time fire risk isolation zone; When it is detected that the positioning information is located in the real-time fire risk isolation zone for more than a preset time, an emergency prompt instruction is sent to the on-site command device, and the emergency prompt instruction is used to instruct the on-site command device to dispatch a prompt device to the location of the rescue personnel to prompt the rescue personnel to evacuate outside the real-time fire risk isolation zone.

2. The method according to claim 1, characterized in that The real-time fire situation information also includes a real-time fire extinguishing encirclement route. After receiving the real-time fire situation information from the server, the method further includes: Displaying the real-time fire risk isolation zone and the real-time fire extinguishing encirclement route on the display screen of the Beidou positioning device; After receiving the trigger operation on the fire extinguishing encirclement route, the navigation route from the current position of the Beidou positioning device to the real-time fire extinguishing encirclement route is displayed.

3. The method according to claim 2, characterized in that The emergency communication command system for forest fire rescue personnel also includes fire monitoring equipment, and the generation process of the real-time fire situation information specifically includes: Receiving the location of the fire point and the fire range from the fire monitoring device; and obtaining the isolation zone information of the target forest area where the fire point is located, the isolation zone information includes the location information of the natural isolation zone and the artificial isolation zone; Generate an initial fire risk isolation zone and an initial fire extinguishing encirclement route according to the fire point location, the fire range, and the isolation zone information; Receiving real-time fire monitoring data from the fire monitoring device, the real-time fire monitoring data including wind direction, wind speed, humidity, fire temperature, and flame height; Acquire geographic information data of the target forest area, wherein the geographic information data includes elevation, slope, slope aspect, ground feature type, and combustible load; Determine the fire spreading direction and fire spreading speed according to the real-time fire scene monitoring data and the geographic information data; The initial fire risk isolation zone and the initial fire extinguishing encirclement route are dynamically adjusted according to the fire spread direction, the fire spread speed and the isolation zone information to obtain the real-time fire extinguishing encirclement route and the real-time fire risk isolation zone.

4. The method according to claim 3, characterized in that The generating of the initial fire risk isolation zone and the initial fire extinguishing encirclement route according to the fire point location, the fire range, and the isolation zone information includes: Taking the fire point as the center, generating a reference isolation zone with a first preset distance from the fire range; Determine, based on the isolation zone information, whether there is a natural isolation zone or an artificial isolation zone within a range of a second preset distance from the reference isolation zone with the fire point as the center; If it exists, adjusting the range of the reference isolation zone according to the natural isolation zone or the artificial isolation zone to obtain the initial fire risk isolation zone; If it does not exist, the reference isolation zone is determined as the initial fire risk isolation zone; The initial fire extinguishing encirclement route is determined based on the initial fire risk isolation zone.

5. The method according to claim 3, characterized in that: The dynamically adjusting the initial fire risk isolation zone and the initial fire extinguishing encirclement route according to the fire spreading direction, the fire spreading speed, and the isolation zone information to obtain the real-time fire extinguishing encirclement route and the real-time fire risk isolation zone includes: Dividing the initial fire risk isolation zone into a first area and a second area according to the fire spread direction, wherein the burning direction of the first area is opposite to the fire spread direction, and the burning direction of the second area is the same as the fire spread direction; Determine a first spreading speed of the first area and a second spreading speed of the second area according to the relationship between the fire spreading speed and the wind force; Determine a real-time isolation zone of the first area according to the first spreading speed and the duration of the fire; and determine a real-time isolation zone of the second area according to the second spreading speed and the duration of the fire; Generate a real-time reference fire risk isolation zone according to the real-time isolation zones of the first area and the second area; Determine, according to the isolation zone information, whether there is a natural isolation zone or an artificial isolation zone within a second preset distance from the real-time reference fire risk isolation zone; If so, adjusting the real-time reference fire risk isolation zone according to the natural isolation zone or the artificial isolation zone to obtain the real-time fire risk isolation zone; If not, the real-time reference fire risk isolation zone is determined as the real-time fire risk isolation zone; The real-time fire extinguishing encirclement route is adjusted according to the real-time fire risk isolation zone.

6. The method according to claim 5, characterized in that The determining, according to the relationship between the fire spread speed and the wind force, a first spread speed of the first area and a second spread speed of the second area comprises: For the first area, if the fire spread speed is greater than the wind force in the fire spread direction, a first spread speed of the first area in its burning direction is determined according to the difference between the fire spread speed and the wind force in the fire spread direction; if the fire spread speed is less than the wind force in the fire spread direction, the first spread speed of the first area in its burning direction is determined to be a first threshold; For the second area, a second spreading speed of the second area in the burning direction thereof is determined according to the sum of the fire spreading speed and the wind force in the fire spreading direction.

7. The method according to claim 5, characterized in that The adjusting the real-time reference fire risk isolation zone according to the natural isolation zone or the artificial isolation zone to obtain the real-time fire risk isolation zone includes: Obtaining angle information of the natural isolation zone or the artificial isolation zone relative to the fire spreading direction; If the angle is less than 45°, the natural isolation zone or the artificial isolation zone is determined to be an invalid isolation zone, and the real-time reference fire risk isolation zone is determined to be the real-time fire risk isolation zone; If the angle is between 45° and 90°, the natural isolation zone or the artificial isolation zone is determined to be a valid isolation zone, and the corresponding part of the natural isolation zone or the artificial isolation zone in the real-time reference fire risk isolation is replaced with the natural isolation zone or the artificial isolation zone.

8. A Beidou positioning device, characterized in that: include: A receiving unit, configured to receive real-time fire situation information from a server, wherein the real-time fire situation information includes a real-time fire risk isolation zone; and, periodically obtaining the location information of rescuers; a processing unit that, upon detecting that the positioning information is within the real-time fire risk isolation zone, issues a prompt message, wherein the prompt message is used to prompt the rescue personnel to evacuate outside the real-time fire risk isolation zone; and, upon detecting that the positioning information is within the real-time fire risk isolation zone for longer than a preset time, sends an emergency prompt instruction to an on-site command device, wherein the emergency prompt instruction is used to instruct the on-site command device to dispatch a prompt device to the location of the rescue personnel to prompt the rescue personnel to evacuate outside the real-time fire risk isolation zone.

9. An emergency communication command system for forest fire rescue personnel, characterized in that: It includes a server, an on-site command device and the Beidou positioning device worn by rescue personnel, and the Beidou positioning device is used to execute the step instructions in the method as described in any one of claims 1-7.

10. A server, characterized in that: The method comprises a processor and a memory, wherein one or more programs are stored in the memory, and the one or more programs are called by the processor to execute the step instructions in the method according to any one of claims 1 to 7.

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