CN113138997A - Earthquake population thermodynamic diagram calculation method for earthquake emergency rescue - Google Patents
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Abstract
The invention provides an earthquake population thermodynamic diagram calculation method facing earthquake emergency rescue, which takes a mobile phone and other wireless terminals as position detectors, supplements positioning data of a GPS + communication base station, and ensures that positioning data of all members in a disaster area is obtained by using position data of multiple dimensions such as population household registration, the GPS, the Internet, communication signaling and the like; the updating frequency of the internet IP address, the GPS positioning data and the base station communication positioning data is higher, the time fineness is better, the time resolution and the space resolution are higher, and the requirement of the earthquake population data updating frequency is met.
Description
Technical Field
The invention relates to the field of point location maps, in particular to a calculation method of an earthquake population thermodynamic diagram for earthquake emergency rescue.
Background
After an earthquake occurs, the number of personnel in the earthquake area and the spatial distribution thereof, the positions of trapped and unconnected personnel are the direct basis for assisting earthquake emergency, search and rescue and disaster reduction, and are the most concerned by the public. The traditional earthquake emergency demographic method mainly depends on household registration statistical information and ground manual investigation, and cannot meet the timeliness requirement of earthquake black-box period disaster relief decision. And with the rapid economic development in recent years, the population mobility is increased, and the actual population situation and the household registration statistical information in earthquake areas may have larger accesses. With the rapid development of technologies such as mobile communication, spatial positioning, distributed computing, etc., the positioning of the geographic position of a user by using the real IP address of the internet has become a popular application, but the positioning accuracy is limited by the influence of the communication network density and coverage, whether the terminal function is turned on, and the data sampling rate. For example, in general, internet IP address acquisition is not updated in real time, but is updated at certain time intervals, for example, once every 1 hour, and the time resolution and the spatial resolution of the internet IP address acquisition are far from sufficient for a special environment such as earthquake emergency, and cannot meet the requirements of earthquake emergency rescue. Therefore, in order to solve the above problems, the invention provides a calculation method of earthquake population thermodynamic diagram for earthquake emergency rescue, which takes a mobile phone and other wireless terminals as position detectors, supplements positioning data of a GPS + communication base station with each other to ensure that positioning data of all members in a disaster area is obtained, and constructs a calculation method of earthquake population distribution for earthquake emergency specific application scenes by taking earthquake emergency rescue focus as a constraint condition, so as to realize quasi-real-time and service-level earthquake population thermodynamic diagram and provide real-time, accurate and effective research and judgment support for an earthquake emergency command center.
Disclosure of Invention
In view of the above, the invention provides an earthquake population thermodynamic diagram calculation method for earthquake emergency rescue, which takes a mobile phone and other wireless terminals as position detectors, ensures that disaster area whole member positioning data is obtained by mutually supplementing positioning data of a GPS (global positioning system) and a communication base station, and constructs an earthquake area population distribution calculation method for earthquake emergency specific application scenes by taking earthquake emergency rescue focus as a constraint condition, so that the earthquake population thermodynamic diagram with quasi-real time and service level is realized, and real-time, accurate and effective research and judgment support is provided for an earthquake emergency command center.
On one hand, the technical scheme of the invention is realized as follows: the invention provides a calculation method of an earthquake population thermodynamic diagram for earthquake emergency rescue, which comprises the following steps:
s1, acquiring disaster area ranges with different damage degree grades caused by earthquake based on the earthquake influence field calculation model;
s2, extracting population household registration data, communication base station positioning data, whole-member mobile terminal GPS positioning data and Internet IP address positioning data of an administrative region to which the disaster area belongs through an earthquake emergency rescue disaster preparation database to serve as initial data of personnel spatial distribution of the earthquake disaster area; acquiring the distribution condition of personnel in the earthquake-stricken area and the current state of the personnel based on the personnel position and state calculation model;
s3, establishing a retrieval fence based on the spatial range retrieval condition and the personnel state attribute retrieval condition, and extracting the position data of the designated personnel in the designated spatial range through intersection operation of the spatial range retrieval condition and the state attribute retrieval condition;
s4, rendering population distribution density in a unit space range by using an electronic map as a base map and different colors, and labeling earthquake situation basic elements on the map; according to earthquake emergency needs, disaster area population data are continuously counted and updated, and various emergency population thermodynamic diagram pictures and corresponding statistical reports are generated.
On the basis of the above technical solution, preferably, the calculation model of the seismic influence field in S1 includes the following steps:
s101, determining the level and the boundary of an earthquake influence field based on the seismic level, the intensity, the aftershock and the minimum administrative division level; wherein the seismic intensity comprises VI, VII, VIII, IX, X and XI degrees;
s102, setting corresponding buffer radii based on the grade of an earthquake influence field by taking the epicenter as a circle center to form an earthquake potential force influence concentric circle which gradually expands from the circle center to the outside;
s103, taking the center of the concentric circle influenced by the seismic potential force as an end point, horizontally extending a ray leftwards, taking the center of the circle as a rotation point, rotating the ray anticlockwise by a rotation angle a, and obtaining an intersection point of the ray and the concentric circle influenced by the seismic potential force;
s104, calculating a longitude and latitude sequence of each intersection point based on the rotation angle a, the corresponding buffer radius of each grade of the earthquake influence field and the epicenter longitude and latitude, and further obtaining the longitude and latitude of any position on the earthquake potential influence concentric circle.
On the basis of the above technical solution, preferably, the specific steps in S101 are:
if the earthquake level is less than or equal to 3.0 and less than 5.0, setting a first-level influence field, wherein the earthquake intensity of the first-level influence field corresponds to VI degrees, the minimum administrative division level is town or village, and the boundary of the town and town is used as the boundary of the first-level earthquake influence field;
if the earthquake level is more than or equal to 5.0 and less than 6.0, setting two levels of influence fields, wherein the earthquake intensity of the first level earthquake influence field corresponds to VI degrees, the earthquake intensity of the second level earthquake influence field corresponds to VII degrees, and the minimum administrative division level is a county, namely, the boundary of the county is used as the boundary of the first level earthquake influence field, and the boundary of the village and the town is used as the boundary of the second level earthquake influence field;
if the earthquake level is more than or equal to 6.0 and less than 6.3, setting a three-level influence field, wherein the earthquake intensity of the first-level earthquake influence field corresponds to VI degrees, the earthquake intensity of the second-level earthquake influence field corresponds to VII degrees, the earthquake intensity of the third-level earthquake influence field corresponds to VIII degrees, and the minimum administrative division level is the city, namely, the city boundary is used as the boundary of the first-level earthquake influence field, the county boundary is used as the boundary of the second-level earthquake influence field, and the township boundary is used as the boundary of the third-level earthquake influence field;
if the earthquake level is more than or equal to 6.4 and less than 6.7, setting a four-level influence field, wherein the earthquake intensity of the first-level earthquake influence field corresponds to VI degrees, the earthquake intensity of the second-level earthquake influence field corresponds to VII degrees, the earthquake intensity of the third-level earthquake influence field corresponds to VIII degrees, the earthquake intensity of the four-level earthquake influence field corresponds to IX degrees, and the minimum administrative division level is a city, namely, the boundary of the city is used as the boundary of the first-level earthquake influence field, the boundary of the county is used as the boundary of the second-level earthquake influence field, the boundary of the county is used as the boundary of the third-level earthquake influence field, and the boundary of the village is used as the boundary of the four-level earthquake influence field;
if the earthquake magnitude is less than or equal to 6.8 levels and less than 7.7 levels, setting a five-level influence field, wherein the earthquake intensity of the first-level earthquake influence field corresponds to VI degrees, the earthquake intensity of the second-level earthquake influence field corresponds to VII degrees, the earthquake intensity of the third-level earthquake influence field corresponds to VIII degrees, the earthquake intensity of the fourth-level earthquake influence field corresponds to IX degrees, the earthquake intensity of the five-level earthquake influence field corresponds to X degrees, and the minimum administrative level is a city, namely, the boundary of the city is used as the boundary of the first-level earthquake influence field, the boundary of the county is used as the boundary of the second-level earthquake influence field, the boundary of the town is used as the boundary of the third-level earthquake influence field, the boundary of the village is used as the boundary of the fourth-level earthquake influence field, and the boundary of the five-level earthquake influence field is determined by the aftershock distribution range and the actually-measured intensity distribution data;
if the earthquake magnitude is more than or equal to 7.8, setting a six-level influence field, wherein the earthquake intensity of the first-level earthquake influence field corresponds to VI, the earthquake intensity of the second-level earthquake influence field corresponds to VII, the earthquake intensity of the third-level earthquake influence field corresponds to VIII, the earthquake intensity of the fourth-level earthquake influence field corresponds to IX, the earthquake intensity of the fifth-level earthquake influence field corresponds to X, the earthquake intensity of the sixth-level earthquake influence field corresponds to XI, the minimum administrative division level is the city, namely, the boundary of the city is taken as the boundary of the first-level earthquake influence field, the boundary of the county is taken as the boundary of the second-level earthquake influence field, the boundary of the county is taken as the boundary of the third-level earthquake influence field, the boundary of the village is taken as the boundary of the fourth-level earthquake influence field, and the boundaries of the fifth-level and sixth-level earthquake influence fields are determined by the aftershock distribution range and the actually measured earthquake intensity distribution data.
On the basis of the above technical solution, preferably, the step of obtaining the distribution condition of the personnel in the earthquake-stricken area based on the personnel position and state calculation model in S2 specifically includes the following steps:
s201, acquiring positioning data of a last communication base station before an earthquake in an earthquake affected area, GPS positioning data of a whole-person mobile terminal in the area and Internet IP address positioning data, extracting population household registration information in a minimum administrative area through an earthquake emergency rescue disaster backup database, taking the acquired positioning data and population household registration information as source data of personnel spatial distribution in the earthquake disaster area, and forming an initial earthquake area population database after data format conversion, cleaning and normalization processing;
s202, using positioning data of communication base stations in an earthquake affected area as primary key values of population data of the earthquake area, using call record conditions as secondary key values, using other attribute items of position data of various sources as attribute items of personnel data, and forming a disaster area personnel wide list database containing position, call records and state attribute labels.
On the basis of the above technical solution, preferably, the step of obtaining the current state of the person based on the person position and state calculation model in S2 specifically includes the following steps:
s301, retrieving fences based on the position of the nearest personnel in the earthquake influence field area and the earthquake range, calculating personnel in the fences in the earthquake area, if the real-time position of the personnel cannot be obtained, carrying out S302, and otherwise, carrying out S303;
s302, acquiring a call record of a person after an earthquake, and if the current person does not have the call record after the earthquake, judging that the state of the person is an uncertain state; otherwise, go to S304;
s303, based on the earthquake range, retrieving fences and calculating a fence list where the refuge fences are located, judging the area where the people are located, and if the people are in the refuge or in a non-earthquake range, judging that the state of the people is in a state of getting out of the stranded state; otherwise, go to S304;
s304, calculating the position change distance of the personnel after the earthquake, and if the position change distance is larger than a threshold value, judging that the personnel state is an active state; otherwise, go to S305;
s305, obtaining the call records of the people after the earthquake, if the current people do not have the call records after the earthquake, judging that the state of the people is in an unconnection state, otherwise, judging that the people are in a trapped state.
On the basis of the above technical solution, preferably, the spatial range search condition in S3 includes an administrative division, an earthquake affected area, and a customized area;
extracting place name keywords by the administrative division according to the earthquake situation basic elements;
the seismic influence field provides a retrieval mode based on a quantization scale of the seismic influence field;
the custom region provides a region retrieval and locking mode based on any region drawn by the user.
On the basis of the above technical solution, preferably, the personnel state attribute retrieval condition in S3 includes an uncertain state, an active state, a trapped state, an unlinked state, and a trapped state.
Based on the above technical solution, preferably, if the search condition is a plurality of spatial range search conditions in S3, the intersection of the search conditions is taken as the final calculated search spatial condition; if the search condition is a plurality of personnel state attribute search conditions, the union of the search conditions is taken as a final calculation search condition.
Compared with the prior art, the earthquake population thermodynamic diagram calculation method for earthquake emergency rescue has the following beneficial effects:
(1) the method comprises the following steps that a mobile phone and other wireless terminals are used as position detectors, positioning data of a GPS and a communication base station are supplemented with each other, and positioning data of a disaster area whole member is obtained through position data of multiple dimensions such as a population household registration, a GPS, the Internet, a communication signaling and the like;
(2) the updating frequency of the internet IP address, the GPS positioning data and the base station communication positioning data is higher, the time fineness is better, the time resolution and the space resolution are higher, and the requirement of the earthquake population data updating frequency is met.
(3) In the early stage of earthquake emergency, the grade and the boundary of an earthquake affected field are preset mainly according to the magnitude of the earthquake magnitude and the grade of an administrative district, in the middle and later stages of earthquake emergency, the grade and the boundary of the earthquake affected field can be continuously updated according to the actually measured earthquake intensity distribution, the dynamic adjustment of the boundary of the earthquake affected field based on the earthquake scene condition is realized, the maximum precision acquisition of the range of the earthquake region and the population household information of disaster victims in the earthquake region is ensured, and a data basis is provided for the precise positioning of the positions of the disaster victims.
(4) The distribution condition of personnel in the earthquake-stricken area and the current state of the personnel are obtained based on the personnel position and state calculation model, and the positions and the activity states of the personnel in the earthquake-stricken area can be accurately obtained; the positions of the persons in the earthquake can be used as space range constraint conditions for extracting the spatial distribution data of population in the earthquake area, the activity states of the persons in the earthquake can be used as constraint conditions for extracting population coverage in specific places in the earthquake area, the quasi-real-time and business-level earthquake population extraction function is realized, and real-time, accurate and effective research and judgment support is provided for an earthquake emergency command center.
(5) Setting four hotspot retrieval modes of an administrative district, an earthquake affected area, a customized area and personnel state attributes based on three concerned hotspots of regional disaster situation profiles, trapped population distribution and specific site covered population, setting corresponding hotspot retrieval modes and retrieval conditions according to an electronic fence, using the hotspot retrieval modes and the retrieval conditions as space range constraint conditions for extracting earthquake region population space distribution data, generating population thermodynamic diagrams of population space distribution in a specific space range, and being capable of implementing emergency rescue deployment after earthquake accurately and effectively in real time and carrying out rescue and arrangement work of disaster region personnel.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a seismic population thermodynamic diagram calculation framework in a seismic population thermodynamic diagram calculation method for earthquake emergency rescue according to the invention;
FIG. 2 is a calculation flow chart of a calculation model of an earthquake influence field in the earthquake population thermodynamic diagram calculation method for earthquake emergency rescue;
fig. 3 is a calculation flow chart of a personnel position and state calculation model in the earthquake population thermodynamic diagram calculation method for earthquake emergency rescue.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Example 1
When an earthquake occurs, the acquisition of personnel position information is the most critical information in the implementation of rescue work. Although the real IP address of the internet can be used for positioning the geographical position of the user at present, the positioning accuracy is limited by the density and the coverage condition of the communication network, whether the terminal function is started or not and the influence of the data sampling rate. For example, in general, internet IP address acquisition is not updated in real time, but is updated at certain time intervals, for example, once every 1 hour, and the time resolution and the spatial resolution of the internet IP address acquisition are far from sufficient for a special environment such as earthquake emergency, and cannot meet the requirements of earthquake emergency rescue. Therefore, in order to solve the above problem, as shown in fig. 1, the present embodiment provides a method for calculating an earthquake population thermodynamic diagram for earthquake emergency rescue, including the following steps:
s1, acquiring disaster area ranges with different damage degree grades caused by earthquake based on the earthquake influence field calculation model;
s2, extracting population household registration data, communication base station positioning data, whole-member mobile terminal GPS positioning data and Internet IP address positioning data of an administrative region to which the disaster area belongs through an earthquake emergency rescue disaster preparation database to serve as initial data of personnel spatial distribution of the earthquake disaster area; acquiring the distribution condition of personnel in the earthquake-stricken area and the current state of the personnel based on the personnel position and state calculation model;
in the special application environment of earthquake rescue, the positions of the disaster-stricken persons are usually roughly positioned by adopting static population household registration statistical data, but the population household registration information represents a range value, and the personnel mobility is strong, so that the personnel positioning accuracy is not high. At present, the Internet IP address is used for positioning, but when an earthquake occurs, a communication link is possibly broken and cannot be recovered in a short time, meanwhile, the Internet IP address is not updated in real time but is updated according to a certain time interval, and under the special application environment of the earthquake, the position updating frequency is required to reach a level of more than a second, so that the positioning by the Internet IP address cannot be guaranteed to obtain the personnel positioning data. In order to solve the above problems, in this embodiment, a mobile phone and other wireless terminals are used as a position detector, mobile phone positioning is adopted, the update frequency of the mobile phone can reach the second level, and the mobile phone has GPS positioning, wireless network terminals and a communication function with a base station, which can generate LBS positioning data, wireless network connection data, communication signaling data and other data, and the positioning data of "GPS + communication base station is supplemented with each other, so as to ensure that disaster area whole member positioning data is obtained by using multi-dimensional position data such as population data, GPS, internet, communication signaling, and the like.
It should be noted that, since the embodiment is applied to a special application environment of earthquake rescue, which belongs to national emergency, all levels of departments should assist and cooperate. Therefore, when an earthquake occurs, all levels of departments open external data interfaces so as to rapidly acquire information such as the household registration of the population, the GPS, the Internet, communication signaling and the like. The location data sources of the present embodiment are all obtained legally and in a feasible manner and processed with the necessary desensitization decryption techniques.
S3, establishing a retrieval fence based on the spatial range retrieval condition and the personnel state attribute retrieval condition, and extracting the position data of the designated personnel in the designated spatial range through intersection operation of the spatial range retrieval condition and the state attribute retrieval condition;
s4, rendering population distribution density in a unit space range by using an electronic map as a base map and different colors, and labeling earthquake situation basic elements on the map; according to earthquake emergency needs, disaster area population data are continuously counted and updated, and various emergency population thermodynamic diagram pictures and corresponding statistical reports are generated.
The beneficial effect of this embodiment does: the method comprises the steps that a mobile phone and other wireless terminals are used as position detectors, positioning data of a GPS + communication base station are supplemented with each other, and positioning data of a disaster area whole member is obtained through position data of multiple dimensions such as a population household registration, a GPS, the Internet, a communication signaling and the like;
the updating frequency of the Internet IP address, the GPS positioning data and the base station communication positioning data is higher, the time fineness is better, the time resolution and the space resolution are higher, and the requirement of the population data updating frequency in earthquake-stricken areas can be met.
Example 2
As known in the art, the definition of a seismic field of influence is: and calculating the space influence range of the current earthquake based on the earthquake situation basic elements and the earthquake motion parameters, and grading according to the influence degree. The earthquake condition basic elements comprise epicenter longitude and latitude, earthquake magnitude and earthquake source depth, and are determined and updated according to the earthquake condition reported by the center of the Chinese earthquake table network.
In order to obtain the positioning data of the population in the disaster area, firstly, the range of an earthquake influence field is ensured, and then the disaster-affected personnel in the range of the earthquake influence field are determined. If the earthquake influence field cannot be accurately drawn, the earthquake area cannot be determined, and people in the earthquake area cannot be determined, so that the problems that the personnel suffered from the earthquake by departments are not in the calculation range of the model, the earthquake rescue is not timely, and the basic elements of the earthquake situation are inaccurate are caused. Thus, the present embodiment provides specific steps for determining disaster area coverage based on a seismic influence field calculation model. Preferably, as shown in fig. 2, the seismic influence field calculation model includes the following steps:
s101, determining the level and the boundary of an earthquake influence field based on the seismic level, the intensity, the aftershock and the minimum administrative division level;
in the earthquake influence field calculation model, the level of the earthquake influence field and the boundary thereof are determined according to the earthquake magnitude, the intensity, the aftershock and the minimum administrative division level. The seismic influence field calculation model only considers the sensible earthquake, so the covered seismic intensity comprises six grades of VI degree, VII degree, VIII degree, IX degree, X degree and XI degree. The administrative division levels are province, city, county, town, village and the like from large to small. And determining the minimum administrative division level in the earthquake influence field calculation model according to the magnitude of the earthquake magnitude and the intensity.
The grade and the boundary of the earthquake influence field are preset mainly according to the magnitude of the earthquake magnitude and the administrative division grade in the early stage of earthquake emergency, and the grade and the boundary of the earthquake influence field can be continuously updated according to the actually measured earthquake intensity distribution in the middle and later stages of earthquake emergency.
The specific determination method for the level and the boundary of the earthquake influence field is as follows:
if the earthquake level is less than or equal to 3.0 and less than 5.0, setting a first-level influence field, wherein the earthquake intensity of the first-level influence field corresponds to VI degrees, the minimum administrative division level is town or village, and the boundary of the town and town is used as the boundary of the first-level earthquake influence field;
if the earthquake level is more than or equal to 5.0 and less than 6.0, setting two levels of influence fields, wherein the earthquake intensity of the first level earthquake influence field corresponds to VI degrees, the earthquake intensity of the second level earthquake influence field corresponds to VII degrees, and the minimum administrative division level is a county, namely, the boundary of the county is used as the boundary of the first level earthquake influence field, and the boundary of the village and the town is used as the boundary of the second level earthquake influence field;
if the earthquake level is more than or equal to 6.0 and less than 6.3, setting a three-level influence field, wherein the earthquake intensity of the first-level earthquake influence field corresponds to VI degrees, the earthquake intensity of the second-level earthquake influence field corresponds to VII degrees, the earthquake intensity of the third-level earthquake influence field corresponds to VIII degrees, and the minimum administrative division level is the city, namely, the city boundary is used as the boundary of the first-level earthquake influence field, the county boundary is used as the boundary of the second-level earthquake influence field, and the township boundary is used as the boundary of the third-level earthquake influence field;
if the earthquake level is more than or equal to 6.4 and less than 6.7, setting a four-level influence field, wherein the earthquake intensity of the first-level earthquake influence field corresponds to VI degrees, the earthquake intensity of the second-level earthquake influence field corresponds to VII degrees, the earthquake intensity of the third-level earthquake influence field corresponds to VIII degrees, the earthquake intensity of the four-level earthquake influence field corresponds to IX degrees, and the minimum administrative division level is a city, namely, the boundary of the city is used as the boundary of the first-level earthquake influence field, the boundary of the county is used as the boundary of the second-level earthquake influence field, the boundary of the county is used as the boundary of the third-level earthquake influence field, and the boundary of the village is used as the boundary of the four-level earthquake influence field;
if the earthquake magnitude is less than or equal to 6.8 levels and less than 7.7 levels, setting a five-level influence field, wherein the earthquake intensity of the first-level earthquake influence field corresponds to VI degrees, the earthquake intensity of the second-level earthquake influence field corresponds to VII degrees, the earthquake intensity of the third-level earthquake influence field corresponds to VIII degrees, the earthquake intensity of the fourth-level earthquake influence field corresponds to IX degrees, the earthquake intensity of the five-level earthquake influence field corresponds to X degrees, and the minimum administrative level is a city, namely, the boundary of the city is used as the boundary of the first-level earthquake influence field, the boundary of the county is used as the boundary of the second-level earthquake influence field, the boundary of the town is used as the boundary of the third-level earthquake influence field, the boundary of the village is used as the boundary of the fourth-level earthquake influence field, and the boundary of the five-level earthquake influence field is determined by the aftershock distribution range and the actually-measured intensity distribution data;
if the earthquake magnitude is more than or equal to 7.8, setting a six-level influence field, wherein the earthquake intensity of the first-level earthquake influence field corresponds to VI, the earthquake intensity of the second-level earthquake influence field corresponds to VII, the earthquake intensity of the third-level earthquake influence field corresponds to VIII, the earthquake intensity of the fourth-level earthquake influence field corresponds to IX, the earthquake intensity of the fifth-level earthquake influence field corresponds to X, the earthquake intensity of the sixth-level earthquake influence field corresponds to XI, the minimum administrative division level is the city, namely, the boundary of the city is taken as the boundary of the first-level earthquake influence field, the boundary of the county is taken as the boundary of the second-level earthquake influence field, the boundary of the county is taken as the boundary of the third-level earthquake influence field, the boundary of the village is taken as the boundary of the fourth-level earthquake influence field, and the boundaries of the fifth-level and sixth-level earthquake influence fields are determined by the aftershock distribution range and the actually measured earthquake intensity distribution data.
S102, setting corresponding buffer radii based on the grade of an earthquake influence field by taking the epicenter as a circle center to form an earthquake potential force influence concentric circle which gradually expands from the circle center to the outside;
s103, taking the center of the concentric circle influenced by the seismic potential force as an end point, horizontally extending a ray leftwards, taking the center of the circle as a rotation point, rotating the ray anticlockwise by a rotation angle a, and obtaining an intersection point of the ray and the concentric circle influenced by the seismic potential force;
s104, calculating a longitude and latitude sequence of each intersection point based on the rotation angle a, the corresponding buffer radius of each grade of the earthquake influence field and the epicenter longitude and latitude, and further obtaining the longitude and latitude of any position on the earthquake potential influence concentric circle.
The beneficial effect of this embodiment does: in the early stage of earthquake emergency, the grade and the boundary of an earthquake affected field are preset mainly according to the magnitude of the earthquake magnitude and the grade of an administrative district, in the middle and later stages of earthquake emergency, the grade and the boundary of the earthquake affected field can be continuously updated according to the actually measured earthquake intensity distribution, the dynamic adjustment of the boundary of the earthquake affected field based on the earthquake scene condition is realized, the maximum precision acquisition of the range of the earthquake region and the population household information of disaster victims in the earthquake region is ensured, and a data basis is provided for the precise positioning of the positions of the disaster victims.
Example 3
When an earthquake occurs, the acquisition of personnel position information is the most critical information in the implementation of rescue work. In this embodiment, the mobile phone and other wireless terminals are used as position detectors, and the positioning data of the "GPS + communication base station" are mutually supplemented, so that the positioning data of the whole disaster area is ensured to be obtained by using the position data of multiple dimensions such as the household registration of the population, the GPS, the internet, the communication signaling, and the like. Due to the strong mobility of the personnel, the first problem of the model is to realize personnel positioning, and after the personnel positioning, corresponding rescue work needs to be carried out according to the activity state of the disaster-stricken personnel, and the second problem of the model is to acquire the activity state of the disaster-stricken personnel. In order to accurately obtain the positions and the activity states of the disaster-stricken persons and implement corresponding rescue work based on the activity states, on the basis of the embodiment 2, the embodiment provides a specific step of obtaining the distribution conditions of the persons in the earthquake-stricken area and the current states of the persons based on the person position and state calculation model. The method mainly comprises two major steps, namely, acquiring the distribution condition of personnel in a disaster area based on a personnel position and state calculation model; and secondly, acquiring the current state of the personnel based on the personnel position and state calculation model.
The method for acquiring the distribution condition of the personnel in the disaster area based on the personnel position and state calculation model comprises the following steps:
s201, acquiring positioning data of a last communication base station before an earthquake in an earthquake affected area, GPS positioning data of a whole-person mobile terminal in the area and Internet IP address positioning data, extracting population household registration information in a minimum administrative area through an earthquake emergency rescue disaster backup database, taking the acquired positioning data and population household registration information as source data of personnel spatial distribution in the earthquake disaster area, and forming an initial earthquake area population database after data format conversion, cleaning and normalization processing;
when an earthquake occurs, the communication tower may collapse, the data network may be interrupted, or a disaster-stricken person does not use a mobile phone or the mobile phone terminal is not opened, so that the situation that the position data of the person cannot be obtained through communication signaling, internet IP and GPS positioning data occurs. In order to ensure that the positioning data of the disaster-stricken personnel can be obtained to the maximum extent, in this embodiment, the positioning data of the whole personnel in the disaster area is ensured to be obtained by obtaining position data of multiple dimensions such as population household registration, a GPS, the internet, a communication signaling and the like.
It should be noted that, since the embodiment is applied to a special application environment of earthquake rescue, which belongs to national emergency, all levels of departments should assist and cooperate. Therefore, when an earthquake occurs, all levels of departments open external data interfaces so as to rapidly acquire information such as the household registration of the population, the GPS, the Internet, communication signaling and the like. The location data sources of the present embodiment are all obtained legally and in a feasible manner.
S202, using positioning data of communication base stations in an earthquake affected area as primary key values of population data of the earthquake area, using call record conditions as secondary key values, using other attribute items of position data of various sources as attribute items of personnel data, and forming a disaster area personnel wide list database containing position, call records and state attribute labels.
As shown in fig. 3, the step of obtaining the current state of the person based on the person position and state calculation model specifically includes the following steps:
s301, retrieving fences based on the position of the nearest personnel in the earthquake influence field area and the earthquake range, calculating personnel in the fences in the earthquake area, if the real-time position of the personnel cannot be obtained, carrying out S302, and otherwise, carrying out S303;
s302, acquiring a call record of a person after an earthquake, and if the current person does not have the call record after the earthquake, judging that the state of the person is an uncertain state; otherwise, go to S304;
s303, based on the earthquake range, retrieving fences and calculating a fence list where the refuge fences are located, judging the area where the people are located, and if the people are in the refuge or in a non-earthquake range, judging that the state of the people is in a state of getting out of the stranded state; otherwise, go to S304;
s304, calculating the position change distance of the personnel after the earthquake, and if the position change distance is larger than a threshold value, judging that the personnel state is an active state; otherwise, go to S305;
s305, obtaining the call records of the people after the earthquake, if the current people do not have the call records after the earthquake, judging that the state of the people is in an unconnection state, otherwise, judging that the people are in a trapped state.
The beneficial effect of this embodiment does: the distribution condition of personnel in the earthquake-stricken area and the current state of the personnel are obtained based on the personnel position and state calculation model, and the positions and the activity states of the personnel in the earthquake-stricken area can be accurately obtained; the positions of the persons in the earthquake can be used as space range constraint conditions for extracting the spatial distribution data of population in the earthquake area, the activity states of the persons in the earthquake can be used as constraint conditions for extracting population coverage in specific places in the earthquake area, the quasi-real-time and business-level earthquake population extraction function is realized, and real-time, accurate and effective research and judgment support is provided for an earthquake emergency command center.
Example 4
After position data preparation and calculation of the positions and states of personnel in the disaster area are completed, corresponding hot spot retrieval modes and retrieval conditions are set for specific application scenes of emergency rescue after earthquake and are used as space range constraint conditions for extracting population space distribution data in the earthquake area. In order to implement emergency rescue deployment after earthquake accurately and effectively in real time and carry out rescue and arrangement work of personnel in disaster areas, attention hotspots of an earthquake emergency command center are mainly concentrated on three aspects: regional disaster situation overview, distribution of trapped people, and coverage of people in specific places. Therefore, the search condition of the computing framework of the embodiment includes two aspects, namely a spatial range search condition and a person state attribute search condition.
The spatial range retrieval conditions comprise administrative divisions, earthquake influence fields and customized areas; the administrative division extracts place name keywords according to the earthquake situation basic elements, and can directly use each level of administrative division as a space range to display population thermodynamic diagrams in the space range; the earthquake influence field provides a retrieval mode based on the quantization level of the earthquake influence field, namely, a retrieval function based on earthquake influence fields of different levels (such as VI degrees, VII degrees, VIII degrees, IX degrees, X degrees and XI degrees) is provided according to the deployment requirement of 'mild, severe and urgent' of an earthquake emergency rescue task; the custom region provides a region retrieval and locking mode based on an arbitrary region drawn by the user. In this embodiment, the search condition of the administrative division is denoted as a1, the search condition of the earthquake impact field is denoted as a2, and the search condition of the custom area is denoted as A3.
The personnel state attribute retrieval conditions comprise an uncertain state, an active state, a trapped state, an unlink state and a trapped state. When an earthquake occurs, thermodynamic diagrams of the whole population (when the personnel state attribute is not specified) or thermodynamic diagrams of specific personnel in a certain spatial range can be extracted by taking the personnel state attribute in the earthquake-stricken area as a retrieval condition according to the requirements of post-earthquake personnel rescue tasks. In this embodiment, the search condition of the whole population is labeled as B1, the search condition of the trapped population is labeled as B2, the search condition of the unconnected population is labeled as B3, the search condition of the disposed population is labeled as B4, and the uncertain population is labeled as B5.
When the search fence intersection operation is performed, two search conditions of a space range and a state attribute can be set respectively. If the retrieval condition is a plurality of spatial range retrieval conditions, taking the intersection of the retrieval conditions as a final calculation retrieval spatial condition; if the search condition is a plurality of personnel state attribute search conditions, the union of the search conditions is taken as a final calculation search condition.
As shown in fig. 1, there are six common application scenarios according to the earthquake emergency service requirement. (1) Within 3 minutes after the earthquake occurs, the earthquake region population distribution map needs to be generated immediately, and the retrieval condition is A1+ B1, wherein the population data of B1 can be generated by static population household information and is called a first edition earthquake region cold data population thermodynamic diagram. (2) And (3) continuously acquiring and updating other population data of the seismic region in addition to the static population household information 10 minutes after the earthquake occurs, and generating a second version of seismic region thermal data population thermodynamic diagram, namely the seismic region population thermodynamic diagram, wherein the retrieval condition is A1+ B1. (3) 30 minutes after the earthquake occurs, according to the requirements of different scenes of earthquake emergency, a retrieval condition of A1+ B2 can be set, and a population thermodynamic diagram of the trapped in the earthquake region is generated; the retrieval condition is A1+ B3, and the output earthquake region loss union population thermodynamic diagram is obtained; the retrieval condition is A1+ B4, and the output seismic region is provided with a population thermodynamic diagram; the retrieval condition is A1+ B5, and the output seismic area is uncertain population thermodynamic diagrams. Generally, after an earthquake occurs, at intervals of 1 hour, the earthquake area population data needs to be continuously updated, and updated C2-C6 are correspondingly generated. In addition, other retrieval conditions can be set and corresponding graphs can be generated according to the earthquake emergency rescue deployment requirement, for example, the retrieval condition is A3+ B1, and represents a human mouth thermodynamic diagram in a customized area (such as a refuge place); the retrieval condition is A2+ B2, which represents the distribution of the trapped population in different seismic potential influence fields. And will not be described in detail herein.
The beneficial effect of this embodiment does: setting four hotspot retrieval modes of an administrative district, an earthquake affected area, a customized area and personnel state attributes based on three concerned hotspots of regional disaster situation profiles, trapped population distribution and specific site covered population, setting corresponding hotspot retrieval modes and retrieval conditions according to an electronic fence, using the hotspot retrieval modes and the retrieval conditions as space range constraint conditions for extracting earthquake region population space distribution data, generating population thermodynamic diagrams of population space distribution in a specific space range, and being capable of implementing emergency rescue deployment after earthquake accurately and effectively in real time and carrying out rescue and arrangement work of disaster region personnel.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. A seismic population thermodynamic diagram calculation method for earthquake emergency rescue is characterized by comprising the following steps: the method comprises the following steps:
s1, acquiring disaster area ranges with different damage degree grades caused by earthquake based on the earthquake influence field calculation model;
s2, extracting population household registration data, communication base station positioning data, whole-member mobile terminal GPS positioning data and Internet IP address positioning data of an administrative region to which the disaster area belongs through an earthquake emergency rescue disaster preparation database to serve as initial data of personnel spatial distribution of the earthquake disaster area; acquiring the distribution condition of personnel in the earthquake-stricken area and the current state of the personnel based on the personnel position and state calculation model;
s3, establishing a retrieval fence based on the spatial range retrieval condition and the personnel state attribute retrieval condition, and extracting the position data of the designated personnel in the designated spatial range through intersection operation of the spatial range retrieval condition and the state attribute retrieval condition;
s4, rendering population distribution density in a unit space range by using an electronic map as a base map and different colors, and labeling earthquake situation basic elements on the map; according to earthquake emergency needs, disaster area population data are continuously counted and updated, and various emergency population thermodynamic diagram pictures and corresponding statistical reports are generated.
2. The earthquake population thermodynamic diagram calculation method oriented to earthquake emergency rescue as claimed in claim 1, wherein: the calculation model of the seismic influence field in the S1 comprises the following steps:
s101, determining the level and the boundary of an earthquake influence field based on the seismic level, the intensity, the aftershock and the minimum administrative division level; wherein the seismic intensity comprises VI, VII, VIII, IX, X and XI degrees;
s102, setting corresponding buffer radii based on the grade of an earthquake influence field by taking the epicenter as a circle center to form an earthquake potential force influence concentric circle which gradually expands from the circle center to the outside;
s103, taking the center of the concentric circle influenced by the seismic potential force as an end point, horizontally extending a ray leftwards, taking the center of the circle as a rotation point, rotating the ray anticlockwise by a rotation angle a, and obtaining an intersection point of the ray and the concentric circle influenced by the seismic potential force;
s104, calculating a longitude and latitude sequence of each intersection point based on the rotation angle a, the corresponding buffer radius of each grade of the earthquake influence field and the epicenter longitude and latitude, and further obtaining the longitude and latitude of any position on the earthquake potential influence concentric circle.
3. The earthquake population thermodynamic diagram calculation method oriented to earthquake emergency rescue as claimed in claim 2, wherein: the specific steps in S101 are as follows:
if the earthquake level is less than or equal to 3.0 and less than 5.0, setting a first-level influence field, wherein the earthquake intensity of the first-level influence field corresponds to VI degrees, the minimum administrative division level is town or village, and the boundary of the town and town is used as the boundary of the first-level earthquake influence field;
if the earthquake level is more than or equal to 5.0 and less than 6.0, setting two levels of influence fields, wherein the earthquake intensity of the first level earthquake influence field corresponds to VI degrees, the earthquake intensity of the second level earthquake influence field corresponds to VII degrees, and the minimum administrative division level is a county, namely, the boundary of the county is used as the boundary of the first level earthquake influence field, and the boundary of the village and the town is used as the boundary of the second level earthquake influence field;
if the earthquake level is more than or equal to 6.0 and less than 6.3, setting a three-level influence field, wherein the earthquake intensity of the first-level earthquake influence field corresponds to VI degrees, the earthquake intensity of the second-level earthquake influence field corresponds to VII degrees, the earthquake intensity of the third-level earthquake influence field corresponds to VIII degrees, and the minimum administrative division level is the city, namely, the city boundary is used as the boundary of the first-level earthquake influence field, the county boundary is used as the boundary of the second-level earthquake influence field, and the township boundary is used as the boundary of the third-level earthquake influence field;
if the earthquake level is more than or equal to 6.4 and less than 6.7, setting a four-level influence field, wherein the earthquake intensity of the first-level earthquake influence field corresponds to VI degrees, the earthquake intensity of the second-level earthquake influence field corresponds to VII degrees, the earthquake intensity of the third-level earthquake influence field corresponds to VIII degrees, the earthquake intensity of the four-level earthquake influence field corresponds to IX degrees, and the minimum administrative division level is a city, namely, the boundary of the city is used as the boundary of the first-level earthquake influence field, the boundary of the county is used as the boundary of the second-level earthquake influence field, the boundary of the county is used as the boundary of the third-level earthquake influence field, and the boundary of the village is used as the boundary of the four-level earthquake influence field;
if the earthquake magnitude is less than or equal to 6.8 levels and less than 7.7 levels, setting a five-level influence field, wherein the earthquake intensity of the first-level earthquake influence field corresponds to VI degrees, the earthquake intensity of the second-level earthquake influence field corresponds to VII degrees, the earthquake intensity of the third-level earthquake influence field corresponds to VIII degrees, the earthquake intensity of the fourth-level earthquake influence field corresponds to IX degrees, the earthquake intensity of the five-level earthquake influence field corresponds to X degrees, and the minimum administrative level is a city, namely, the boundary of the city is used as the boundary of the first-level earthquake influence field, the boundary of the county is used as the boundary of the second-level earthquake influence field, the boundary of the town is used as the boundary of the third-level earthquake influence field, the boundary of the village is used as the boundary of the fourth-level earthquake influence field, and the boundary of the five-level earthquake influence field is determined by the aftershock distribution range and the actually-measured intensity distribution data;
if the earthquake magnitude is more than or equal to 7.8, setting a six-level influence field, wherein the earthquake intensity of the first-level earthquake influence field corresponds to VI, the earthquake intensity of the second-level earthquake influence field corresponds to VII, the earthquake intensity of the third-level earthquake influence field corresponds to VIII, the earthquake intensity of the fourth-level earthquake influence field corresponds to IX, the earthquake intensity of the fifth-level earthquake influence field corresponds to X, the earthquake intensity of the sixth-level earthquake influence field corresponds to XI, the minimum administrative division level is the city, namely, the boundary of the city is taken as the boundary of the first-level earthquake influence field, the boundary of the county is taken as the boundary of the second-level earthquake influence field, the boundary of the county is taken as the boundary of the third-level earthquake influence field, the boundary of the village is taken as the boundary of the fourth-level earthquake influence field, and the boundaries of the fifth-level and sixth-level earthquake influence fields are determined by the aftershock distribution range and the actually measured earthquake intensity distribution data.
4. The earthquake population thermodynamic diagram calculation method oriented to earthquake emergency rescue as claimed in claim 1, wherein: the step of obtaining the distribution situation of the personnel in the earthquake-stricken area based on the personnel position and state calculation model in the step S2 specifically comprises the following steps:
s201, acquiring positioning data of a last communication base station before an earthquake in an earthquake affected area, GPS positioning data of a whole-person mobile terminal in the area and Internet IP address positioning data, extracting population household registration information in a minimum administrative area through an earthquake emergency rescue disaster backup database, taking the acquired positioning data and population household registration information as source data of personnel spatial distribution in the earthquake disaster area, and forming an initial earthquake area population database after data format conversion, cleaning and normalization processing;
s202, using positioning data of communication base stations in an earthquake affected area as primary key values of population data of the earthquake area, using call record conditions as secondary key values, using other attribute items of position data of various sources as attribute items of personnel data, and forming a disaster area personnel wide list database containing position, call records and state attribute labels.
5. The earthquake population thermodynamic diagram calculation method oriented to earthquake emergency rescue as claimed in any one of claims 1 to 4, wherein: the step of obtaining the current state of the person based on the person position and state calculation model in S2 specifically includes the following steps:
s301, retrieving fences based on the position of the nearest personnel in the earthquake influence field area and the earthquake range, calculating personnel in the fences in the earthquake area, if the real-time position of the personnel cannot be obtained, carrying out S302, and otherwise, carrying out S303;
s302, acquiring a call record of a person after an earthquake, and if the current person does not have the call record after the earthquake, judging that the state of the person is an uncertain state; otherwise, go to S304;
s303, based on the earthquake range, retrieving fences and calculating a fence list where the refuge fences are located, judging the area where the people are located, and if the people are in the refuge or in a non-earthquake range, judging that the state of the people is in a state of getting out of the stranded state; otherwise, go to S304;
s304, calculating the position change distance of the personnel after the earthquake, and if the position change distance is larger than a threshold value, judging that the personnel state is an active state; otherwise, go to S305;
s305, obtaining the call records of the people after the earthquake, if the current people do not have the call records after the earthquake, judging that the state of the people is in an unconnection state, otherwise, judging that the people are in a trapped state.
6. The earthquake population thermodynamic diagram calculation method oriented to earthquake emergency rescue as claimed in claim 5, wherein: the spatial range retrieval conditions in the S3 comprise administrative divisions, earthquake influence fields and customized areas;
extracting place name keywords by the administrative division according to the earthquake situation basic elements;
the seismic influence field provides a retrieval mode based on a quantization scale of the seismic influence field;
the custom region provides a region retrieval and locking mode based on any region drawn by the user.
7. The earthquake population thermodynamic diagram calculation method oriented to earthquake emergency rescue as claimed in claim 5, wherein: the personnel state attribute retrieval conditions in the S3 comprise an uncertain state, an active state, a trapped state, an unconnected state and a trapped state.
8. The earthquake population thermodynamic diagram calculation method oriented to earthquake emergency rescue as claimed in claim 5, wherein: if the search condition in S3 is a plurality of spatial range search conditions, taking the intersection of the search conditions as the final calculated search spatial condition; if the search condition is a plurality of personnel state attribute search conditions, the union of the search conditions is taken as a final calculation search condition.
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