CN117195600B - Mountain torrent disaster dangerous area road evacuation guiding information generation method and system - Google Patents
Mountain torrent disaster dangerous area road evacuation guiding information generation method and system Download PDFInfo
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Abstract
The invention relates to a method and a system for generating road evacuation guiding information in a dangerous area of a mountain torrent disaster, wherein the method comprises the steps of constructing a real-time three-dimensional model of the mountain torrent disaster, inputting acquired monitoring data such as rainfall, debris flow and the like, analyzing the mountain torrent risk disaster grade, carrying out simulation on a personnel evacuation route in the dangerous area based on acquired population signaling data and on the mountain torrent disaster risk grade, carrying out dynamic planning decision on the evacuation route, pushing road evacuation guiding information to personnel in the dangerous area for evacuation, and can effectively avoid the existing dangerous points and the dangerous points to be evacuated safely and quickly. Further, the road evacuation guiding information is pushed for multiple times, people in the dangerous area are urged to evacuate multiple times, and casualties caused by mountain torrents are reduced.
Description
Technical Field
The invention relates to the technical field of flood prevention, in particular to a method and a system for generating road evacuation guiding information in a mountain torrent disaster dangerous area.
Background
With the development of society, the progress of technology and the improvement of importance to life. Governments and other institutions have increasingly improved disaster prevention and relief capabilities, but small-probability flood disaster events still occur frequently, and population losses caused by disasters are still huge. Therefore, people in the mountain torrent geological disaster dangerous area are evacuated, the population loss caused by a certain type of flood disaster event is estimated, and the disaster defense and emergency response strategy is formulated, so that the personnel loss caused by the disaster is reduced. Behavior among people during evacuation of people, and research on cluster behavior of a large number of people is research on specific behavior generated by interaction among people when a group of people are evacuated together. Behavior characteristics of evacuees in the evacuation model are factors that are most difficult to calculate accurately. During evacuation, the surrounding environment condition is considered, and the shortest evacuation personnel path is selected, so that people can evacuate the danger area as soon as possible. In addition, in the evacuation process, due to the problem of personnel consciousness, the false understanding of the mountain torrent disasters can be caused, evacuation command can not be responded in time, and personnel casualties are caused.
Disclosure of Invention
The invention provides a method and a system for generating road evacuation guiding information in a mountain torrent disaster dangerous area aiming at the defects of the prior art.
Specifically, the technical scheme of the invention is as follows:
in one aspect, a method for generating road evacuation guidance information of a mountain torrent disaster dangerous area is provided, which comprises the following steps:
constructing a mountain torrent disaster live-action three-dimensional model, acquiring real-time rainfall, debris flow and water level monitoring information of a dangerous area, and outputting a mountain torrent disaster risk level through the mountain torrent disaster live-action three-dimensional model;
acquiring dangerous area population signaling data and user behavior data in a dangerous area within a specified time period, screening out picture or video data uploaded by users in the dangerous area, determining uploading position information of the picture or video by combining the population signaling data, and comparing and analyzing the uploading position information of the picture or video data with street view information of the same position to obtain road damage condition information; simulating the personnel evacuation route of the dangerous area based on the mountain torrent disaster risk level and the road damage condition information to generate road evacuation guiding information;
the mountain torrent disaster dangerous area road evacuation guiding system can send road evacuation guiding information to dangerous area personnel, and the dangerous area personnel can acquire the road evacuation guiding information through short messages or terminal application;
the road evacuation guiding information at least comprises first road evacuation guiding information and second road evacuation guiding information; the first road evacuation guiding information at least comprises first latest evacuation route guiding information, first latest disaster avoidance point information, evacuation travel tool guiding information and evacuation countdown information; when the situation that the personnel in the dangerous area do not move after receiving the first road evacuation guiding information is monitored, and an evacuation countdown threshold value is triggered, second road evacuation guiding information is sent; the second road evacuation guiding information at least comprises second nearest evacuation route guiding information, second nearest disaster avoidance point information, evacuation travel tool guiding information, nearby personnel evacuation condition information and warning information; the first nearest evacuation route guiding information and the second nearest evacuation route guiding information at least comprise three pieces of evacuation route information respectively; the nearby personnel evacuation situation information at least comprises proportion information of nearby personnel evacuation travel and selected evacuation route information; the warning information at least comprises current disaster point information and disaster trend information.
As the preferable technical scheme, the warning information also comprises warm warning information, and the warm warning information at least comprises warning information for reminding people in the dangerous area not to greed with money, otherwise, the life safety is endangered.
As the preferable technical scheme, the nearby personnel refer to the people in the same village or the people in the same community, and the proportion information of the nearby personnel for evacuating and traveling is evacuating and traveling proportion information calculated by taking the people in the same village or the people in the same community as the base number.
As an optimized technical scheme, when the road evacuation guiding system of the mountain torrent disaster dangerous area is used for issuing road evacuation guiding information, the system also comprises the step of sending flood control instruction information to inform flood control related personnel in the dangerous area, and the flood control related personnel are regulated to issue flood control materials to the personnel in the dangerous area within a certain time.
As an optimal technical scheme, the dangerous area is divided into a plurality of small fragments, and flood prevention related personnel are responsible for distributing flood prevention materials according to the fragments.
As the preferable technical scheme, the method also comprises the step of obtaining personnel evacuation situation information of the dangerous area and taking reference for mobilizing reasonable flood control materials and flood control personnel.
As the preferable technical scheme, the mountain torrent disaster risk level comprises a mountain torrent first level, a mountain torrent second level, a mountain torrent third level, a mountain torrent fourth level and a mountain torrent fifth level.
In another aspect, a mountain torrent disaster dangerous area road evacuation guidance system is provided, including: the processing unit, the display unit and the terminal application; the processing unit comprises a data acquisition module, a model construction module, a data analysis module and an early warning and forecasting module; the display unit comprises an evacuation route simulation module; the terminal application comprises a user information registration module, an automatic positioning module and an early warning receiving module, wherein the user downloading terminal application registers user information in the user information registration module, and the user information is stored in the early warning forecasting module;
the system comprises a data acquisition module, a data processing module and a data processing module, wherein the data acquisition module is used for acquiring three-dimensional DEM data in a dangerous area, field data acquired by unmanned aerial vehicle flight, real-time rainfall data, debris flow data, water level monitoring data, population signaling data, internet data and personnel evacuation data information;
the model construction module is used for carrying out geometric topology based on the acquired three-dimensional DEM data and field data acquired by unmanned aerial vehicle flight, constructing a mountain torrent disaster live-action three-dimensional model by combining a hydrodynamic model, and carrying out model parameter calibration and verification by utilizing real-time rainfall data, debris flow data and water level monitoring data;
the data analysis module is used for inputting a mountain torrent disaster live-action three-dimensional model based on acquired field data, real-time rainfall data, debris flow data and water level monitoring data acquired by the unmanned aerial vehicle in flight and outputting a mountain torrent disaster risk level;
the evacuation route simulation module is used for carrying out simulation and dynamic display on personnel evacuation routes in the danger areas based on the acquired population signaling data and the mountain torrent disaster risk level, and can carry out real-time dynamic planning on the evacuation routes to generate disaster risk analysis road evacuation guiding information;
the early warning and forecasting module can issue road evacuation guiding information to guide personnel in the dangerous area to evacuate.
As an optimal technical scheme, the automatic positioning module can upload the user position information to the early warning and forecasting module, and the early warning and forecasting module determines to send the first road evacuation guiding information or the second road evacuation guiding information according to the user position information.
As an optimal technical scheme, real-time rainfall data is acquired from information acquired by automatic rainfall monitoring stations arranged in a dangerous area.
Compared with the prior art, the invention has the following technical effects: according to the invention, by constructing the real-time three-dimensional model of the mountain torrent disaster, inputting acquired monitoring data such as real-time rainfall, debris flow and the like, analyzing the mountain torrent risk disaster grade, carrying out simulation on the evacuation route of personnel in the dangerous area based on the acquired population signaling data and the mountain torrent disaster risk grade, carrying out dynamic planning decision on the evacuation route, pushing road evacuation guiding information to the personnel in the dangerous area for evacuation, and safely and rapidly evacuating people in the dangerous area while effectively avoiding the existing dangerous points and the dangerous points. Further, the road evacuation guiding information is pushed for multiple times, people in the dangerous area are urged to evacuate multiple times, and casualties caused by mountain torrents are reduced.
Drawings
Fig. 1 is a schematic flow chart of a method for generating road evacuation guidance information in a mountain torrent disaster dangerous area according to embodiment 1 of the present invention;
fig. 2 is a schematic diagram of a road evacuation guidance system frame in a mountain torrent disaster dangerous area according to embodiment 2 of the present disclosure;
description of the reference numerals
A processing unit 10; a data acquisition module 101; a model building module 102; a data analysis module 103; an early warning forecasting module 104;
a display unit 20; an evacuation route simulation module 201;
a terminal application 30; a user information registration module 301; an automatic positioning module 302; the early warning receiving module 303.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to specific embodiments of the present invention and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
As shown in fig. 1, a method for generating road evacuation guidance information in a mountain torrent disaster dangerous area according to the present embodiment specifically includes the following steps:
and S10, constructing a mountain torrent disaster live-action three-dimensional model, acquiring real-time rainfall, debris flow and water level monitoring information of the dangerous area, and outputting the mountain torrent disaster risk level through the mountain torrent disaster live-action three-dimensional model.
Preferably, the mountain torrent disaster risk level comprises a mountain torrent first level, a mountain torrent second level, a mountain torrent third level, a mountain torrent fourth level and a mountain torrent fifth level. And (3) based on real-time rainfall data access, calculating the mountain torrent risk level through a mountain torrent disaster live-action three-dimensional model.
Specifically, the method comprises the following steps:
s101, calculating a risk value, namely comparing the rainfall total amount P with a drainage standard capacity value H of a dangerous area, and calculating a risk value K, wherein the risk value is denoted by K in a general term, and each risk value is denoted by K. When P is less than or equal to H, the risk value k=0; when H < P < 1.5H, risk value k=4; when P is more than or equal to 1.5H and less than 2H, the risk value k=6; when 2H is less than or equal to P and less than 2.5H, the risk value k=8; when P is greater than or equal to 2.5H, the risk value k=10; wherein, the total amount of rainfall p=sum (P i )，P i As rainfall data, rainfall data P i For a weighted average of rainfall monitoring data of one or more rainfall monitoring stations in a risk area at a specific moment, (i=1, 2 … …, 24, i represents 1-24 moment, P) i Representing rainfall data at a certain moment), and further, for real-time monitoring, rainfall data P i Set as a weighted average of rainfall data acquired by one or more rainfall monitoring stations within the danger zone within the last two hours of a certain moment at intervals of 5 minutes.
S102, calculating a risk level, wherein the risk level comprises calculating a total risk value F based on a risk value K, wherein F=K is 0.3+L, the value of L is 0-10, and L represents other risk factor values; dividing the total risk value into 5 risk grades, wherein when F is less than or equal to 3.0, the risk grade=1; when F is more than 3.0 and less than or equal to 4.0, the risk level=2; when F is more than 4.0 and less than or equal to 5.0, the risk level=3; when F is more than 5.0 and less than or equal to 6.0, the risk level=4; when F > 6.0, risk level=5. The risk level 1 corresponds to the first grade of mountain torrent, the risk level 2 corresponds to the second grade of mountain torrent, the risk level 3 corresponds to the third grade of mountain torrent, risk level 4 corresponds to the torrent level four and risk level 5 corresponds to the torrent level five.
S20, acquiring dangerous area population signaling data and user behavior data in a dangerous area within a specified time period, screening out picture or video data uploaded by users in the dangerous area, determining uploading position information of the picture or video by combining the population signaling data, and comparing and analyzing the uploading position information of the picture or video data with street view information of the same position to obtain road damage condition information; and carrying out simulation on the personnel evacuation route of the dangerous area based on the mountain torrent disaster risk level and the road damage condition information to generate road evacuation guiding information.
The user behavior data in the dangerous area is obtained and comprises uploaded mountain torrent road section picture or video data information, and is compared and analyzed with street view information of the same place, which is acquired through unmanned aerial vehicle flight before disaster occurrence and stored in the system, wherein the same place is the uploading position of the picture or video data uploaded by the user, namely the mountain torrent road section place. And outputting road evacuation guiding information by combining population signaling data, and issuing the road evacuation guiding information through a system to inform personnel in a dangerous area. Here, the danger zone personnel include personnel already on the mountain torrent road section, and the people who are about to pass the mountain torrent road section, and the road evacuation guidance information may include acquired picture or video information about the mountain torrent road section, and the analysis-derived evacuation path information.
The obtained user behavior data in the dangerous area comprises but is not limited to mountain torrent road condition information expressed by pictures, characters and videos issued by microblogs, weChat friend circles, tremble sounds and headlines.
S30, the mountain torrent disaster dangerous area road evacuation guiding system can send road evacuation guiding information to dangerous area personnel, and the dangerous area personnel can acquire the road evacuation guiding information through a short message or a terminal application 30.
Preferably, the road evacuation guiding information at least includes first road evacuation guiding information and second road evacuation guiding information. The first road evacuation guidance information is transmitted before the second road evacuation guidance information. Preferably, the first road evacuation guidance information and the second road evacuation guidance information are dynamically updated in real time.
The first road evacuation guiding information at least comprises first nearest evacuation route guiding information, first nearest disaster avoidance point information, evacuation travel tool guiding information and evacuation countdown information. The navigation APP can be connected with the first nearest evacuation route guiding information and the second nearest disaster avoidance point information.
Further, when the system monitors that the danger area personnel do not move after receiving the first road evacuation guiding information and triggers the threshold value of evacuation countdown, the system then sends second road evacuation guiding information. The second road evacuation guiding information at least comprises second nearest evacuation route guiding information, second nearest disaster avoidance point information, evacuation travel tool guiding information, nearby personnel evacuation condition information and warning information, and further, the nearby personnel evacuation condition information at least comprises proportion information of nearby personnel evacuation travel and selected evacuation route information. In consideration of the psychological sense of people, the evacuation information pushing nearby people is set in the second road evacuation guiding information to the people who do not select timely evacuation after receiving the first road evacuation guiding information, and further psychologically hints are given to the people who do not select evacuation yet.
Preferably, the nearby personnel refer to people in the same village or people in the same community, and the proportion information of the nearby personnel for evacuation and travel is the proportion information of the evacuation and travel calculated by taking the number of the people in the same village or the people in the same community as the base number.
Preferably, the first nearest evacuation route guidance information and the second nearest evacuation route guidance information respectively include at least three pieces of evacuation route information. Further, the warning information at least comprises current disaster point information and disaster trend information. By pushing disaster trend information, people in the dangerous area which are not evacuated yet can be further reminded to evacuate and escape. Based on investigation, people often greed about property when mountain torrents come, and have a lucky mind. Therefore, preferably, the warning information further includes warm warning information, and the warm warning information at least includes warning information for reminding people in the dangerous area of not greeking money, otherwise, the warning information endangering life safety is further used for supervising people in the dangerous area to evacuate and withdraw.
Preferably, when the road evacuation guidance information is issued by the mountain torrent disaster dangerous area road evacuation guidance system, the method further comprises the step of sending flood control instruction information to flood control related personnel in the dangerous area, and providing the flood control related personnel with flood control materials for the personnel in the dangerous area within a certain time. The flood prevention materials at least comprise life jackets, and at least the personnel in the dangerous area can be ensured to be separated into one life jacket.
Furthermore, in order to improve the distribution speed, the dangerous area is divided into a plurality of small partitioned areas in advance by related flood prevention personnel, and when flood prevention instruction information is received, the related flood prevention personnel are responsible for distributing flood prevention materials according to the pre-distributed partitioned areas.
Furthermore, the method also comprises the step of acquiring information of personnel evacuation in the dangerous area from the system, and taking the information as a reference for later mobilizing reasonable flood control materials and flood control personnel so as to avoid wasting resources or lacking resources.
Example 2
As shown in fig. 2, a road evacuation guidance system for a mountain torrent disaster dangerous area according to this embodiment includes: a processing unit 10, a display unit 20 and a terminal application 30. The processing unit 10 includes a data acquisition module 101, a model construction module 102, a data analysis module 103, and an early warning and forecasting module 104. The display unit 20 comprises an evacuation route simulation module 201. The terminal application 30 includes a user information registration module 301, an automatic positioning module 302, and an early warning receiving module 303, and after the user downloads the terminal application 30, the user information is registered in the user information registration module 301, and the user information is stored in the early warning forecasting module 104.
Specifically, the data acquisition module 101 is configured to acquire data information such as three-dimensional DEM (digital elevation model) data in a dangerous area, field data acquired by unmanned aerial vehicle flight, real-time rainfall data, debris flow data, water level monitoring data, population signaling data, internet data, personnel evacuation data information, traffic information, road information, housing construction information, and the like. And storing the acquired information into a database, wherein the information is updated in real time, and the mountain torrent disaster risk can be judged at the first time based on the updated information in real time.
The model construction module 102 is used for carrying out geometric topology based on the acquired three-dimensional DEM data and field data acquired by unmanned aerial vehicle flight, constructing a mountain torrent disaster live-action three-dimensional model by combining a hydrodynamic model, carrying out rainfall mountain torrent simulation, and carrying out model parameter calibration and verification by utilizing real-time rainfall data, debris flow data and water level monitoring data. The field data are acquired through combining the three-dimensional DEM data with the unmanned aerial vehicle flight, the original appearance of the ground object is truly restored, higher absolute precision can be obtained through the absolute orientation of the control points, a live-action three-dimensional model is realized, and simulation analysis of the rainfall runoff and the surface water is realized through simulation. Based on the simulation data set, combining rainfall real-time monitoring data, fitting between the influence factors and the mountain torrent induced geological disasters by using a machine learning related algorithm, and constructing a mountain torrent geological quick simulation model.
The data analysis module 103 inputs the mountain torrent disaster live-action three-dimensional model based on the acquired field data, real-time rainfall data, debris flow data and water level monitoring data acquired by the unmanned aerial vehicle flight, and outputs the mountain torrent disaster risk level.
The evacuation route simulation module 201 performs simulation and dynamic display on the personnel evacuation route of the dangerous area based on the acquired population signaling data, the mountain torrent disaster risk level, the user behavior data in the dangerous area within a specified time period and the like, and can dynamically plan the evacuation route in real time to generate disaster risk analysis road evacuation guiding information. The simulation can effectively avoid the existing dangerous points and the dangerous points to be found, and safely and quickly evacuate the dangerous area crowd.
The early warning and forecasting module 104 can issue road evacuation guiding information to guide personnel in the dangerous area to evacuate.
Preferably, the automatic positioning module 302 can upload the user location information to the early warning and forecasting module 104, and the early warning and forecasting module 104 determines to send the first road evacuation guiding information or the second road evacuation guiding information according to the user location information. And the automatic positioning module 302 can report the information of the personnel evacuation situation through the system, and the information is used as a reference basis for later mobilizing reasonable flood control materials and flood control personnel so as to avoid wasting resources or lacking resources.
Preferably, the real-time rainfall data is acquired from information acquired by automatic rainfall monitoring stations arranged in the danger area.
It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Claims (6)
1. The method for generating the road evacuation guiding information of the torrential flood disaster dangerous area is characterized by comprising the following steps of:
constructing a mountain torrent disaster live-action three-dimensional model, acquiring real-time rainfall, mud-rock flow and water level monitoring information of a dangerous area, and outputting a mountain torrent disaster risk level through the mountain torrent disaster live-action three-dimensional model; the mountain torrent disaster risk level comprises a mountain torrent first level, a mountain torrent second level, a mountain torrent third level, a mountain torrent fourth level and a mountain torrent fifth level; wherein calculating the torrent disaster risk level comprises:
calculating a risk value, comprising: comparing the rainfall total amount P with a drainage standard capacity value H of a dangerous area, and calculating a risk value K, wherein the risk value is denoted by K, and each risk value is denoted by K; when P is less than or equal to H, the risk value k=0; when H < P < 1.5H, risk value k=4; when P is more than or equal to 1.5H and less than 2H, the risk value k=6; when 2H is less than or equal to P and less than 2.5H, the risk value k=8; when P is greater than or equal to 2.5H, the risk value k=10; the rainfall total amount P=SUM (Pi), wherein Pi is rainfall data, the rainfall data Pi is a weighted average of rainfall monitoring data of one or more rainfall monitoring stations in a danger area at a specific moment, and the rainfall data Pi is set as the weighted average of rainfall data acquired by one or more rainfall monitoring stations in the danger area at intervals of 5 minutes within two hours nearest to the moment;
calculating a risk level, comprising: calculating a total risk value F, f=k 0.3+l based on the risk value K; wherein, the value of L is 0-10, L represents other risk factor values; dividing the total risk value into 5 risk grades, wherein when F is less than or equal to 3.0, the risk grade=1; when F is more than 3.0 and less than or equal to 4.0, the risk level=2; when F is more than 4.0 and less than or equal to 5.0, the risk level=3; when F is more than 5.0 and less than or equal to 6.0, the risk level=4; when F > 6.0, risk level=5; the risk level 1 corresponds to the first grade of mountain torrent, the risk level 2 corresponds to the second grade of mountain torrent, the risk level 3 corresponds to the third grade of mountain torrent, the risk level 4 corresponds to the torrential flood level four and the risk level 5 corresponds to the torrential flood level five;
acquiring dangerous area population signaling data and user behavior data in a dangerous area within a specified time period, screening out picture or video data uploaded by a dangerous area user, determining uploading position information of the picture or video by combining the population signaling data, and comparing and analyzing the uploading position information of the picture or video data with street view information of the same position to obtain road damage condition information; simulating the personnel evacuation route of the dangerous area based on the mountain torrent disaster risk level and the road damage condition information to generate road evacuation guiding information; the road evacuation guiding information comprises acquired picture or video information about the mountain torrent road section and evacuation path information obtained by analysis;
the mountain torrent disaster dangerous area road evacuation guiding system can send the road evacuation guiding information to dangerous area personnel, and the dangerous area personnel can acquire the road evacuation guiding information through a short message or terminal application;
the road evacuation guiding information at least comprises first road evacuation guiding information and second road evacuation guiding information; the first road evacuation guiding information at least comprises first latest evacuation route guiding information, first latest disaster avoidance point information, evacuation travel tool guiding information and evacuation countdown information; when the dangerous area personnel are monitored to not move after receiving the first road evacuation guiding information and the evacuation countdown threshold value is triggered, second road evacuation guiding information is sent; the second road evacuation guiding information at least comprises second nearest evacuation route guiding information, second nearest disaster avoidance point information, evacuation travel tool guiding information, nearby personnel evacuation condition information and warning information; the first nearest evacuation route guiding information and the second nearest evacuation route guiding information at least comprise three pieces of evacuation route information respectively; the nearby personnel evacuation situation information at least comprises proportion information of nearby personnel evacuation travel and selected evacuation route information; the warning information at least comprises current disaster point information and disaster trend information;
the warning information also comprises warm warning information, wherein the warm warning information at least comprises warning information for reminding people in the dangerous area not to greed with money, otherwise, the life safety is endangered; the nearby personnel refer to people in the same village or people in the same community, and the proportion information of evacuation and travel of the nearby personnel is the proportion information of evacuation and travel calculated by taking the number of people in the same village or people in the same community as a base number; the method also comprises the step of obtaining personnel evacuation condition information of the dangerous area and taking reference for mobilizing reasonable flood control materials and flood control personnel.
2. The method for generating the flood disaster risk area road evacuation guidance information according to claim 1, wherein the flood disaster risk area road evacuation guidance system is further capable of sending flood control instruction information to flood control related persons in the risk area, and the flood control instruction information at least comprises the step of providing flood control related persons with flood control materials for the risk area persons within a certain time.
3. The method for generating road evacuation guidance information for a mountain torrent disaster risk area according to claim 2, wherein the risk area is divided into a plurality of small segments, and flood control related personnel are responsible for issuing flood control materials according to the segments.
4. A mountain torrent disaster risk zone road evacuation guidance system for generating the method of any one of claims 1-3, comprising: the processing unit, the display unit and the terminal application; the processing unit comprises a data acquisition module, a model construction module, a data analysis module and an early warning and forecasting module; the display unit comprises an evacuation route simulation module; the terminal application comprises a user information registration module, an automatic positioning module and an early warning receiving module, wherein a user downloads the user information registered by the terminal application in the user information registration module, and the user information is stored in the early warning forecasting module;
the data acquisition module is used for acquiring three-dimensional DEM data in the dangerous area, field data acquired by unmanned aerial vehicle flight, real-time rainfall data, debris flow data, water level monitoring data, population signaling data, internet data and personnel evacuation data information;
the model construction module is used for carrying out geometric topology based on the acquired three-dimensional DEM data and field data acquired by unmanned aerial vehicle flight, constructing a mountain torrent disaster live-action three-dimensional model by combining a hydrodynamic model, and carrying out model parameter calibration and verification by utilizing the real-time rainfall data, the debris flow data and the water level monitoring data;
the data analysis module is used for inputting the mountain torrent disaster live-action three-dimensional model based on the acquired field data, real-time rainfall data, debris flow data and water level monitoring data acquired by the unmanned aerial vehicle, and outputting the mountain torrent disaster risk level; the mountain torrent disaster risk level comprises a mountain torrent first level, a mountain torrent second level, a mountain torrent third level, a mountain torrent fourth level and a mountain torrent fifth level; wherein calculating the torrent disaster risk level comprises:
calculating a risk value, comprising: comparing the rainfall total amount P with a drainage standard capacity value H of a dangerous area, and calculating a risk value K, wherein the risk value is denoted by K, and each risk value is denoted by K; when (when)P is less than or equal to H, and the risk value k=0; when H < P < 1.5H, risk value k=4; when P is more than or equal to 1.5H and less than 2H, the risk value k=6; when 2H is less than or equal to P and less than 2.5H, the risk value k=8; when P is greater than or equal to 2.5H, the risk value k=10; wherein, the total amount of rainfall p=sum (P i )，P i As rainfall data, rainfall data P i For a weighted average of rainfall monitoring data of one or more rainfall monitoring stations in a risk area at a specific moment, the rainfall data P i Setting a weighted average of rainfall data acquired by one or more rainfall monitoring stations in the dangerous area within the last two hours at a certain moment at intervals of 5 minutes;
calculating a risk level, comprising: calculating a total risk value F, f=k 0.3+l based on the risk value K; wherein, the value of L is 0-10, L represents other risk factor values; dividing the total risk value into 5 risk grades, wherein when F is less than or equal to 3.0, the risk grade=1; when F is more than 3.0 and less than or equal to 4.0, the risk level=2; when F is more than 4.0 and less than or equal to 5.0, the risk level=3; when F is more than 5.0 and less than or equal to 6.0, the risk level=4; when F > 6.0, risk level=5; the risk level 1 corresponds to the first grade of mountain torrent, the risk level 2 corresponds to the second grade of mountain torrent, the risk level 3 corresponds to the third grade of mountain torrent, the risk level 4 corresponds to the torrential flood level four and the risk level 5 corresponds to the torrential flood level five;
the evacuation route simulation module is used for carrying out simulation and dynamic display on personnel evacuation routes in the danger areas based on the acquired population signaling data and the mountain torrent disaster risk level, and can carry out real-time dynamic planning on the evacuation routes to generate disaster risk analysis road evacuation guiding information; the road evacuation guiding information at least comprises first road evacuation guiding information and second road evacuation guiding information; the first road evacuation guiding information at least comprises first latest evacuation route guiding information, first latest disaster avoidance point information, evacuation travel tool guiding information and evacuation countdown information; when the dangerous area personnel are monitored to not move after receiving the first road evacuation guiding information and the evacuation countdown threshold value is triggered, second road evacuation guiding information is sent; the second road evacuation guiding information at least comprises second nearest evacuation route guiding information, second nearest disaster avoidance point information, evacuation travel tool guiding information, nearby personnel evacuation condition information and warning information; the first nearest evacuation route guiding information and the second nearest evacuation route guiding information at least comprise three pieces of evacuation route information respectively; the nearby personnel evacuation situation information at least comprises proportion information of nearby personnel evacuation travel and selected evacuation route information; the warning information at least comprises current disaster point information and disaster trend information;
the warning information also comprises warm warning information, wherein the warm warning information at least comprises warning information for reminding people in the dangerous area not to greed with money, otherwise, the life safety is endangered; the nearby personnel refer to people in the same village or people in the same community, and the proportion information of evacuation and travel of the nearby personnel is the proportion information of evacuation and travel calculated by taking the number of people in the same village or people in the same community as a base number; the method also comprises the steps of obtaining personnel evacuation situation information of the dangerous area and taking reasonable flood control materials and flood control personnel as reference basis;
the early warning and forecasting module can issue the road evacuation guiding information to guide personnel in the dangerous area to evacuate.
5. The mountain torrent disaster risk zone road evacuation guidance system of claim 4, wherein the automatic positioning module is capable of uploading user location information to the early warning prediction module, the early warning prediction module determining to send first road evacuation guidance information or second road evacuation guidance information based on the user location information.
6. The system of claim 4, wherein the real-time rainfall data is obtained from information collected from automatic rainfall monitoring stations located in the danger zone.
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