Earthquake early warning method and device based on satellite, electronic equipment and storage medium

Abstract

The invention provides a satellite-based earthquake early warning method and device, electronic equipment and a storage medium, and relates to the field of satellite monitoring. The satellite-based earthquake early warning method provided by the invention comprises the following steps: determining initial crustal deformation data of a target monitoring area corresponding to an initial satellite; under the condition that the initial crustal deformation data is greater than preset crustal deformation data, determining a plurality of target satellites corresponding to the initial crustal deformation data and acquiring first radar image information corresponding to the plurality of target satellites; determining a plurality of earth crust deformation differences based on the plurality of pieces of first radar image information and second radar image information corresponding to the initial satellite; and based on the plurality of earth crust deformation differences, determining a target terminal and generating earthquake early warning information, and sending the earthquake early warning information to the target terminal. According to the invention, the earthquake prediction efficiency and accuracy can be improved.

Description

Technical Field

[0001] The present application relates to the field of satellite monitoring, and in particular to a satellite-based earthquake early warning method, device, electronic equipment and storage medium. Background Art

[0002] With the continuous development of low-orbit satellite technology, low-orbit satellite technology has been applied in many fields, such as communications, regional monitoring, navigation, and earthquake early warning. In the field of earthquake early warning, the traditional earthquake early warning method is to install radar equipment on low-orbit satellites to collect radar images of the target monitoring area, and use interferometry measurement technology based on synthetic aperture radar to compare and analyze multiple radar images to obtain crustal deformation conditions, and determine whether to issue an earthquake early warning through analysis of the crustal deformation conditions.

[0003] However, the applicant of this application found that when using traditional earthquake early warning methods, due to the influence of the time resolution of low-orbit satellites, the time period between the collected radar images is certain. Therefore, when the amplitude of crustal deformation in the target monitoring area suddenly increases or continuously increases, the time period for collecting radar images of the target monitoring area cannot be shortened, resulting in the inability to collect radar images in a timely manner and determine the crustal deformation based on the radar images, resulting in low earthquake early warning efficiency and accuracy. Summary of the Invention

[0004] In order to improve the efficiency and accuracy of earthquake prediction, the present application provides a satellite-based earthquake early warning method, device, electronic device and storage medium.

[0005] This application provides a satellite-based earthquake early warning method, which adopts the following technical solutions:

[0006] A satellite-based earthquake early warning method, comprising:

[0007] Determine the initial crustal deformation data of the target monitoring area corresponding to the initial satellite;

[0008] When the initial crustal deformation data is greater than the preset crustal deformation data, determining a plurality of target satellites corresponding to the initial crustal deformation data and acquiring first radar image information respectively corresponding to the plurality of target satellites;

[0009] determining a plurality of crustal deformation differences based on the plurality of first radar image information and the second radar image information corresponding to the initial satellite;

[0010] Based on multiple crustal deformation differences, a target terminal is determined and earthquake warning information is generated, and the earthquake warning information is sent to the target terminal.

[0011] According to some embodiments, the above-mentioned determination of the initial crustal deformation data of the target monitoring area corresponding to the initial satellite includes: obtaining at least two second radar image information corresponding to the initial satellite, wherein the at least two second radar image information are image information collected by the initial satellite in different continuous operation cycles; generating an interference image based on the at least two pre-processed second radar image information; and determining the initial crustal deformation data based on the interference image.

[0012] According to some embodiments, when the initial crustal deformation data is greater than the preset crustal deformation data, determining multiple target satellites corresponding to the initial crustal deformation data and obtaining first radar image information corresponding to the multiple target satellites respectively include: determining the crustal deformation level corresponding to the initial crustal deformation data, and obtaining the operating cycle corresponding to the initial satellite; based on the crustal deformation level, determining the monitoring time interval for monitoring the target monitoring area; based on the operating cycle and the monitoring time interval, determining multiple target satellites from the multiple standby satellites obtained, and obtaining first radar image information corresponding to the multiple target satellites respectively.

[0013] According to some embodiments, the above-mentioned determination of multiple target satellites from multiple acquired standby satellites based on the operation cycle and the monitoring time interval includes: obtaining operation information corresponding to each of the multiple standby satellites, and determining, based on the operation information, the first time points for performing image acquisition of the target monitoring area corresponding to each of the multiple standby satellites; obtaining a second time point corresponding to the initial satellite based on the operation cycle, wherein the second time point is the time point when the initial satellite operates to the target monitoring area for the second time to acquire images; determining multiple real time intervals based on the second time point and the first time point; and determining multiple target satellites from multiple standby satellites based on the retrieved monitoring time interval range when any real time interval among the multiple real time intervals is not equal to the monitoring time interval, and the difference between the two is less than a preset difference.

[0014] According to some embodiments, the above-mentioned determination of multiple crustal deformation differences based on multiple first radar image information and second radar image information corresponding to the initial satellite includes: sorting the multiple first radar image information and the second radar image information in time to obtain multiple radar image information to be measured, and comparing two temporally adjacent radar image information to be measured in the multiple radar image information to be measured to obtain multiple target crustal deformation data; performing difference calculation on two temporally adjacent target crustal deformation data in the multiple target crustal deformation data to obtain multiple crustal deformation differences.

[0015] According to some embodiments, the above-mentioned determination of target terminals and generation of earthquake warning information based on multiple crustal deformation differences include: determining the pre-earthquake source corresponding to the target monitoring area when there is a positive growth relationship between any three temporally adjacent crustal deformation differences among the multiple crustal deformation differences; constructing a priority communication area based on the pre-earthquake source and a preset first range demarcation rule; generating earthquake warning information, and determining all terminals in the target monitoring area as target terminals, and determining the target terminals located in the priority communication area as priority communication target terminals.

[0016] According to some embodiments, the above-mentioned determination of target terminals and generation of earthquake warning information based on multiple crustal deformation differences include: when any crustal deformation difference among multiple crustal deformation differences is greater than a preset crustal deformation difference, constructing a communication area based on a preset second range division rule and obtaining spatial position information corresponding to all target terminals in the communication area; generating earthquake warning information, and based on the spatial position information, screening out multiple terminals located indoors from multiple target terminals, and determining the multiple terminals as priority communication target terminals.

[0017] This application provides a satellite-based earthquake early warning device, which adopts the following technical solutions:

[0018] A satellite-based earthquake early warning device includes: an information determination module, an image acquisition module, a crustal deformation difference determination module, and an information sending module, wherein:

[0019] An information determination module, used to determine the initial crustal deformation data of the target monitoring area corresponding to the initial satellite;

[0020] an image acquisition module, configured to, when the initial crustal deformation data is greater than a preset crustal deformation data, determine a plurality of target satellites corresponding to the initial crustal deformation data and acquire first radar image information corresponding to the plurality of target satellites respectively;

[0021] a crustal deformation difference determining module, configured to determine a plurality of crustal deformation differences based on a plurality of first radar image information and a second radar image information corresponding to an initial satellite;

[0022] The information sending module is used to determine the target terminal and generate earthquake warning information based on multiple crustal deformation differences, and send the earthquake warning information to the target terminal.

[0023] According to some embodiments, the above-mentioned information determination module is specifically used to: obtain at least two second radar image information corresponding to the initial satellite, wherein the at least two second radar image information are image information collected by the initial satellite in different continuous operation cycles; generate an interference image based on the at least two pre-processed second radar image information; and determine the initial crustal deformation data based on the interference image.

[0024] According to some embodiments, the above-mentioned image acquisition module is specifically used to: determine the crustal deformation level corresponding to the initial crustal deformation data, and obtain the operating cycle corresponding to the initial satellite; based on the crustal deformation level, determine the monitoring time interval for monitoring the target monitoring area; based on the operating cycle and the monitoring time interval, determine multiple target satellites from the multiple standby satellites obtained, and obtain first radar image information corresponding to the multiple target satellites respectively.

[0025] According to some embodiments, the above-mentioned image acquisition module is specifically further used to: obtain operation information corresponding to multiple standby satellites, and based on the operation information, determine the first time points for the multiple standby satellites to respectively collect images of the target monitoring area; based on the operation cycle, obtain the second time point corresponding to the initial satellite, wherein the second time point is the time point when the initial satellite runs to the target monitoring area for the second time to collect images; based on the second time point and the first time point, determine multiple real time intervals; when any real time interval among the multiple real time intervals is not equal to the monitoring time interval, and the difference between the two is less than a preset difference, determine multiple target satellites from the multiple standby satellites based on the retrieved monitoring time interval range.

[0026] According to some embodiments, the above-mentioned crustal deformation difference determination module is used to: time-sort multiple first radar image information and second radar image information to obtain multiple radar image information to be measured, and compare two temporally adjacent radar image information to be measured in the multiple radar image information to be measured to obtain multiple target crustal deformation data; perform difference calculation on two corresponding temporally adjacent target crustal deformation data in the multiple target crustal deformation data to obtain multiple crustal deformation differences.

[0027] According to some embodiments, the above-mentioned information sending module is specifically used to: determine the pre-earthquake source corresponding to the target monitoring area when there is a positive growth relationship between any three temporally adjacent crustal deformation differences among multiple crustal deformation differences; construct a priority communication area based on the pre-earthquake source and a preset first range demarcation rule; generate earthquake early warning information, and determine all terminals in the target monitoring area as target terminals, and determine the target terminal located in the priority communication area as a priority communication target terminal.

[0028] According to some embodiments, the above-mentioned information sending module is specifically further used to: when any crustal deformation difference among multiple crustal deformation differences is greater than a preset crustal deformation difference, construct a communication area based on a preset second range division rule and obtain the spatial position information corresponding to all target terminals in the communication area; generate earthquake early warning information, and based on the spatial position information, screen out multiple terminals located indoors from multiple target terminals, and determine the multiple terminals as priority communication target terminals.

[0029] This application provides an electronic device, which adopts the following technical solution:

[0030] An electronic device, comprising:

[0031] processor;

[0032] The memory stores a computer program, which, when executed by the processor, enables the processor to execute the above-mentioned satellite-based earthquake early warning method.

[0033] This application provides a computer-readable storage medium, which adopts the following technical solution:

[0034] A computer-readable storage medium stores a computer program, which, when executed by a processor, enables the processor to execute the above-mentioned satellite-based earthquake early warning method.

[0035] According to the above-mentioned embodiment provided by the present application, after the initial satellite collects routine radar image information of the target monitoring area, the radar image information is analyzed and processed to determine the initial crustal deformation data. When the crustal deformation data is greater than the preset crustal deformation data, it indicates that the crustal deformation amplitude exceeds the predetermined amount, and the target monitoring area needs to be centrally monitored. Then, multiple target satellites corresponding to the initial crustal deformation data and their respective corresponding first radar image information are determined. After that, multiple crustal deformation differences corresponding to the multiple first radar information and the second radar information are determined. Through the analysis of the multiple crustal deformation differences, the target terminal is determined and earthquake warning information is generated, and the earthquake warning information is sent to the target terminal for display. In this way, when the crustal deformation data exceeds the threshold, an adapted number of target satellites are screened out to participate in the monitoring process, thereby improving the efficiency and accuracy of earthquake warning. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 1 is a block diagram of a satellite-based earthquake early warning method according to an embodiment of the present application;

[0037] Figure 2 1 is a block diagram of a satellite-based earthquake early warning device according to an embodiment of the present application;

[0038] Figure 3 It is a schematic diagram of an electronic device according to an embodiment of the present application.

[0039] Description of reference numerals:

[0040] 20: Satellite-based earthquake early warning device; 201: Information determination module; 202: Information acquisition module; 203: Crustal deformation difference determination module; 204: Information sending module; 30: Electronic device; 301: Processor; 302: Bus; 303: Memory; 304: Transceiver. DETAILED DESCRIPTION

[0041] The following is combined with Figure 1-Figure 3 This application is described in further detail.

[0042] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0043] An embodiment of the present application provides a satellite-based earthquake early warning method, which can be executed by an electronic device, wherein the electronic device can be a server, wherein the server can be an independent physical server, or a server cluster or distributed device composed of multiple physical servers, or a cloud server providing cloud computing services; the server can be installed in a ground terminal, or in a VR device worn by the inspector.

[0044] Reference Figure 1 A satellite-based earthquake early warning method includes: step S101, step S102, step S103 and step S104, wherein:

[0045] S101, determining initial crustal deformation data of a target monitoring area corresponding to an initial satellite.

[0046] In some embodiments, the initial crustal deformation data is crustal deformation data of the target monitoring area during an initial satellite operation cycle time interval.

[0047] The initial satellite is equipped with a radar device. When the initial satellite carries the radar device and moves to the target monitoring area during each operation cycle, the radar device is used to collect radar image information of the target monitoring area. When the initial satellite completes at least two operation cycles, at least two radar image information corresponding to the target monitoring area are obtained. Subsequently, the at least two radar image information are compared and processed through the interferometry measurement technology based on synthetic aperture radar to obtain the interference map corresponding to the target monitoring area, and based on the analysis of the interference map, the initial crustal deformation data of the target monitoring area is obtained.

[0048] S102 : When the initial crust deformation data is greater than the preset crust deformation data, determining a plurality of target satellites corresponding to the initial crust deformation data and acquiring first radar image information respectively corresponding to the plurality of target satellites.

[0049] In some embodiments, the electronic device is pre-set with preset crustal deformation data, which serves as basic information for judging whether the crustal deformation amplitude in the target monitoring area exceeds the reasonable deformation amplitude. The preset crustal deformation data can be set subjectively by technical personnel, or it can be set by the electronic device based on the analysis results after analyzing the past historical crustal deformation conditions and their corresponding impact conditions. The specific value is not specifically limited in the embodiments of this application.

[0050] After determining the initial crustal deformation data, the electronic device retrieves the preset crustal deformation data and compares the initial crustal deformation data with the preset crustal deformation data; when the electronic device determines that the preset crustal deformation data is greater than the preset crustal deformation data, it indicates that within the operating cycle time interval of the initial satellite, the crustal deformation amplitude of the target monitoring area has exceeded the reasonable crustal deformation amplitude. At this time, it is necessary to collect radar image information of the target monitoring area for a shorter time period. However, due to the limitation of the time resolution of the initial satellite, that is, the limitation of the operating cycle of the initial satellite, it is necessary to determine other target satellites as monitoring satellites for crustal deformation monitoring of the target monitoring area. Therefore, the electronic device needs to determine multiple target satellites corresponding to the crustal deformation data and obtain first radar image information corresponding to the multiple target satellites respectively. Subsequently, by comparing and processing the first radar images, the crustal deformation of the target monitoring area is further determined.

[0051] In some embodiments, multiple target satellites are all equipped with radar equipment, and the time intervals for the multiple target satellites to operate to the target monitoring area are equal, and within the operating cycle of the initial satellite, the multiple target satellites complete the collection of first radar image information of the target monitoring area. In addition, when the multiple target satellites operate to the target monitoring area to collect radar image information, their respective operating altitudes, angles and powers of radar equipment and other parameters are consistent with those of the initial satellite, so as to minimize the information deviation between the multiple first image information collected due to the influence of other factors.

[0052] S103 : Determine a plurality of crustal deformation differences based on the plurality of first radar image information and the second radar image information corresponding to the initial satellite.

[0053] In some embodiments, the second radar image is radar image information collected by a radar device installed on the initial satellite when the initial satellite moves to the target monitoring area for the second time.

[0054] The electronic device temporally sorts the second radar image information and the multiple first radar image information, and based on the principle of comparative analysis and processing of two temporally adjacent radar images, performs comparative analysis and processing on the radar image information on a pairwise basis to obtain multiple target crustal deformation data. Subsequently, based on the multiple target crustal deformation data, multiple crustal deformation differences are determined.

[0055] S104: Determine a target terminal based on multiple crustal deformation differences, generate earthquake warning information, and send the earthquake warning information to the target terminal.

[0056] In some embodiments, the crustal deformation difference can reflect whether the crustal deformation amplitude of the target monitoring area is increasing over time. Therefore, after determining multiple crustal deformation differences, the electronic device determines the target terminal that needs to communicate and the target terminal that is prioritized for communication based on the values ​​of the crustal deformation differences and / or the relationship between the multiple crustal deformation differences, and generates earthquake early warning information. Subsequently, the electronic device sends the generated earthquake early warning information to the determined target terminal and the target terminal that is prioritized for communication, thereby improving the efficiency and accuracy of earthquake prediction in the target monitoring area by determining a target satellite adapted to the target terminal for centralized detection when the crustal deformation data in the target monitoring area exceeds the preset crustal deformation data.

[0057] In step S101, initial crustal deformation data of the target monitoring area corresponding to the initial satellite is determined, including: obtaining at least two second radar image information corresponding to the initial satellite, wherein the at least two second radar image information are image information collected by the initial satellite in different continuous operation cycles; generating an interference image based on the at least two preprocessed second radar image information; and determining the initial crustal deformation data based on the interference image.

[0058] In some embodiments, the electronic device accurately aligns at least two radar image information to determine that the two are spatially aligned. Subsequently, the electronic device removes the phase deviation caused by the earth's curvature and the geometric relationship of the rheostat orbit by subtracting the flat-earth phase, and then performs radiation calibration on the at least two radar image information to eliminate the radiation deviation caused by the radar system and atmospheric conditions. Thereafter, an interference pattern is generated using the at least two radar image information, wherein the interference pattern includes a terrain phase and a deformation phase; finally, the interference pattern is phase unwrapped to first extract the 2π module of the phase, thereby obtaining a continuous deformation phase, and then the deformation information contained therein is extracted, and based on the extracted deformation information, the crust deformation field is drawn, and initial crust deformation data is obtained from the crust deformation field.

[0059] In step S102, when the initial crustal deformation data is greater than the preset crustal deformation data, multiple target satellites corresponding to the initial crustal deformation data are determined and first radar image information corresponding to the multiple target satellites is obtained, including: determining the crustal deformation level corresponding to the initial crustal deformation data, and obtaining the operation cycle corresponding to the initial satellite; based on the crustal deformation level, determining the monitoring time interval for monitoring the target monitoring area; based on the operation cycle and the monitoring time interval, determining multiple target satellites from the multiple standby satellites obtained, and obtaining first radar image information corresponding to the multiple target satellites.

[0060] In some embodiments, the electronic device is preset with a database containing the correspondence between crust deformation level-crust deformation data-monitoring time interval. The electronic device compares and analyzes the initial crust deformation data with the database to determine the crust deformation level corresponding to the initial crust deformation data, wherein the higher the crust deformation level, the larger the corresponding initial crust deformation data, and the larger the crust deformation data, the shorter the time interval for monitoring the target monitoring area; at the same time, the electronic device obtains the operating cycle corresponding to the initial satellite and determines the corresponding monitoring time interval for monitoring the target monitoring area from the database based on the crust deformation level.

[0061] Subsequently, the electronic device uses the operating cycle as the basic information for determining the target satellite, and uses the time interval as the basic information for determining the target satellite that meets the time interval from multiple standby satellites, and then determines multiple target satellites from multiple standby satellites. For example, the operating cycle is 100 minutes, and the monitoring time interval determined based on the crustal deformation level is 20 minutes. Multiple satellites are determined to operate to the target monitoring area and collect their radar image information at 20 minutes, 40 minutes, 60 minutes and 80 minutes after the initial satellite collects the second radar image information for the second time, and these multiple satellites are used as target satellites, thereby determining multiple target satellites from multiple standby satellites. Subsequently, when multiple target satellites operate to the target monitoring area, the target satellites are controlled to monitor the target monitoring area, thereby obtaining multiple first radar image information.

[0062] In some embodiments, based on the operation cycle and the monitoring time interval, multiple target satellites are determined from the acquired multiple standby satellites, including: obtaining operation information corresponding to the multiple standby satellites, and determining the first time points for the multiple standby satellites to respectively perform image acquisition of the target monitoring area based on the operation information; obtaining the second time point corresponding to the initial satellite based on the operation cycle, wherein the second time point is the time point when the initial satellite operates to the target monitoring area for the second time to acquire images; determining multiple real time intervals based on the second time point and the first time point; when any real time interval among the multiple real time intervals is not equal to the monitoring time interval, and the difference between the two is less than a preset difference, determining multiple target satellites from the multiple standby satellites based on the retrieved monitoring time interval range.

[0063] In some embodiments, by analyzing the operation information corresponding to the multiple standby satellites obtained, the first time point when each standby satellite operates to the target detection area and is capable of collecting radar images of the target monitoring area is determined. Subsequently, the multiple first time points are respectively calculated with the first time point or the second time point adjacent to the previous time to determine the real time interval corresponding to each standby satellite. Subsequently, the multiple real time intervals are compared with the detection time interval to determine whether the multiple real time intervals are equal to the detection time interval. If any real time interval among the multiple real time intervals is not equal to the monitoring time interval, and the difference between the two is less than the preset difference, the electronic device calls the monitoring time interval range set in advance, replaces the monitoring time interval with the monitoring time interval range, and determines multiple target satellites from the multiple standby satellites based on the monitoring time interval range.

[0064] In some embodiments, the electronic device has a preset time interval range. Taking the above example, corresponding to the 20th minute, the electronic device sets the time interval range corresponding to the 20 minutes, such as 19 minutes to 21 minutes. When there is no standby satellite among the multiple standby satellites that has the conditions to collect radar image information of the target monitoring area at the 20th minute, the electronic device calls the 19-minute to 21-minute time interval range, and determines from the multiple standby satellites a standby satellite that has the conditions to collect radar image information of the target monitoring area at any time point between the 19th minute and the 21st minute, and determines the standby satellite as the target satellite at the 20th minute, thereby improving the adaptability of the target satellite selection.

[0065] In some embodiments, the standby satellite is a satellite that has the same operating altitude as the initial satellite and that flies through the target monitoring area.

[0066] In step S103, multiple crustal deformation differences are determined based on multiple first radar image information and second radar image information corresponding to the initial satellite, including: temporally sorting the multiple first radar image information and the second radar image information to obtain multiple radar image information to be measured, and comparing two temporally adjacent radar image information to be measured among the multiple radar image information to be measured to obtain multiple target crustal deformation data; and performing difference calculation on two temporally adjacent target crustal deformation data among the multiple target crustal deformation data to obtain multiple crustal deformation differences.

[0067] In some embodiments, the electronic device sorts multiple first radar image information and second radar image information based on time from small to large, and then pairs them in order from small to large, and uses interferometry measurement technology based on synthetic aperture radar to compare and analyze the two paired radar image information to obtain the corresponding target crustal deformation data; then, the electronic device sorts the multiple target crustal deformation data based on time from small to large, and performs difference calculation on two target crustal deformation data adjacent in time, to obtain multiple crustal deformation differences, and then, the electronic device determines whether it is necessary to determine the target terminal and generate basic information for pre-earthquake warning information based on the multiple crustal deformation differences.

[0068] In step S104, based on multiple crustal deformation differences, the target terminal is determined and earthquake warning information is generated, including: when there is a positive growth relationship between any three temporally adjacent crustal deformation differences among the multiple crustal deformation differences, the pre-earthquake source corresponding to the target monitoring area is determined; based on the pre-earthquake source and the preset first range demarcation rule, a priority communication area is constructed; earthquake warning information is generated, and all terminals in the target monitoring area are determined as target terminals, and the target terminal located in the priority communication area is determined as the priority communication target terminal.

[0069] In some embodiments, after each target satellite moves to the target monitoring area and collects the second radar image information, if the conditions for determining the crustal deformation difference are met, the crustal deformation data between the second radar image information at adjacent times and the crustal deformation difference at adjacent times are determined, and the relationship between the crustal deformation difference value itself and the adjacent crustal deformation differences is analyzed.

[0070] When the electronic device determines that there is a positive growth relationship between any three temporally adjacent crustal deformation differences among multiple crustal deformation differences, it indicates that the crustal deformation in the target monitoring area is continuously changing, and the amount of change is continuously increasing, and there is a possibility of subsequent earthquakes, and early warning is needed. Randomly, the electronic device obtains the crustal deformation center corresponding to the target monitoring area, where the crustal deformation center is the point with the largest deformation in the target monitoring area. Subsequently, the electronic device analyzes the drawn crustal deformation field to obtain the pre-seismic source corresponding to the target monitoring area, and uses the pre-seismic source as the center point to subsequently determine the range where the earthquake may occur, that is, the electronic device calls the first range demarcation rule preset in advance, and uses the pre-seismic source as the center of the circle to construct a priority communication area in the target monitoring area.

[0071] At the same time, the electronic device generates earthquake warning information. Afterwards, because the priority communication area is affected first when an earthquake occurs, the electronic device determines all target terminals from the priority communication area and determines all target terminals as priority communication target terminals. Subsequently, the electronic device sends the earthquake warning information to the priority communication target terminals for warning display, and after the sending is completed, the earthquake warning information is sent to the non-priority communication target terminals in the target monitoring area for warning display.

[0072] In step S104, based on multiple crustal deformation differences, the target terminal is determined and earthquake warning information is generated, including: when any crustal deformation difference among the multiple crustal deformation differences is greater than a preset crustal deformation difference, based on a preset second range division rule, a communication area is constructed and the spatial position information corresponding to all target terminals in the communication area is obtained; earthquake warning information is generated, and based on the spatial position information, multiple terminals located indoors are screened out from the multiple target terminals, and the multiple terminals are determined as priority communication target terminals.

[0073] In some embodiments, each time the electronic device determines a crustal deformation difference, it compares the crustal deformation difference with a preset crustal deformation difference, and when it is determined that the crustal deformation difference is greater than the preset crustal deformation difference, it indicates that the crustal deformation amplitude in the target monitoring area has increased sharply, and the probability of subsequent earthquakes has increased sharply, so timely earthquake warning is needed, and earthquake warnings need to be given priority to people in buildings. Then, the electronic device calls the second range division rule, constructs a communication area, obtains the spatial position information corresponding to all target terminals in the communication area, and generates warning information; then, by judging the spatial position information, it determines multiple terminals located indoors, and determines these multiple terminals as priority communication target terminals; the electronic device sends the earthquake warning information to the priority communication target terminal first, and has given priority to reminding such personnel to take earthquake precautions, and after sending the earthquake warning information to the priority communication target terminal, it sends the earthquake warning information to the non-priority communication target terminal in the target monitoring area for warning display, thereby improving the efficiency of earthquake prevention and reducing the negative impact of earthquakes.

[0074] This application provides a satellite-based earthquake early warning device, which adopts the following technical solutions:

[0075] Reference Figure 2 A satellite-based earthquake early warning device 20 includes: an information determination module 201, an image acquisition module 202, a crustal deformation difference determination module 203, and an information sending module 204, wherein:

[0076] An information determination module 201 is used to determine the initial crustal deformation data of the target monitoring area corresponding to the initial satellite;

[0077] The image acquisition module 202 is configured to determine a plurality of target satellites corresponding to the initial crustal deformation data and acquire first radar image information corresponding to the plurality of target satellites respectively when the initial crustal deformation data is greater than a preset crustal deformation data;

[0078] A crustal deformation difference determining module 203 is configured to determine a plurality of crustal deformation differences based on a plurality of first radar image information and a second radar image information corresponding to an initial satellite;

[0079] The information sending module 204 is used to determine the target terminal and generate earthquake warning information based on multiple crustal deformation differences, and send the earthquake warning information to the target terminal.

[0080] In some embodiments, the above-mentioned information determination module 201 is specifically used to: obtain at least two second radar image information corresponding to the initial satellite, wherein the at least two second radar image information are image information collected by the initial satellite in different continuous operation cycles; generate an interference image based on the at least two pre-processed second radar image information; and determine the initial crustal deformation data based on the interference image.

[0081] In some embodiments, the above-mentioned image acquisition module 202 is specifically used to: determine the crustal deformation level corresponding to the initial crustal deformation data, and obtain the operating cycle corresponding to the initial satellite; based on the crustal deformation level, determine the monitoring time interval for monitoring the target monitoring area; based on the operating cycle and the monitoring time interval, determine multiple target satellites from the multiple standby satellites obtained, and obtain the first radar image information corresponding to the multiple target satellites respectively.

[0082] In some embodiments, the above-mentioned image acquisition module 202 is specifically used to: obtain operating information corresponding to multiple standby satellites, and based on the operating information, determine the first time points for the multiple standby satellites to respectively collect images of the target monitoring area; based on the operating cycle, obtain the second time point corresponding to the initial satellite, wherein the second time point is the time point when the initial satellite runs to the target monitoring area for the second time to collect images; based on the second time point and the first time point, determine multiple real time intervals; when any real time interval among the multiple real time intervals is not equal to the monitoring time interval, and the difference between the two is less than the preset difference, determine multiple target satellites from the multiple standby satellites based on the retrieved monitoring time interval range.

[0083] In some embodiments, the above-mentioned crustal deformation difference determination module 203 is used to: time-sort multiple first radar image information and second radar image information to obtain multiple radar image information to be measured, and compare two temporally adjacent radar image information in the multiple radar image information to be measured to obtain multiple target crustal deformation data; perform difference calculation on two corresponding temporally adjacent target crustal deformation data in the multiple target crustal deformation data to obtain multiple crustal deformation differences.

[0084] In some embodiments, the above-mentioned information sending module 204 is specifically used to: determine the pre-earthquake source corresponding to the target monitoring area when there is a positive growth relationship between any three temporally adjacent crustal deformation differences among multiple crustal deformation differences; construct a priority communication area based on the pre-earthquake source and the preset first range demarcation rule; generate earthquake early warning information, and determine all terminals in the target monitoring area as target terminals, and determine the target terminals located in the priority communication area as priority communication target terminals.

[0085] In some embodiments, the above-mentioned information sending module 201 is specifically used to: when any crustal deformation difference among multiple crustal deformation differences is greater than a preset crustal deformation difference, construct a communication area based on a preset second range division rule and obtain the spatial position information corresponding to all target terminals in the communication area; generate earthquake early warning information, and based on the spatial position information, filter out multiple terminals located indoors from multiple target terminals, and determine the multiple terminals as priority communication target terminals.

[0086] In some embodiments, the information determination module 201 may include a logic circuit, or may be implemented by a central processing unit, a digital signal processor, or a field programmable gate array contained in an electronic device; the image acquisition module 202 may include a logic circuit, or may be implemented by a central processing unit, a digital signal processor, or a field programmable gate array contained in an electronic device; the crust deformation difference determination module 203 may include a logic circuit, or may be implemented by a central processing unit, a digital signal processor, or a field programmable gate array contained in an electronic device; the information sending module 204 may include a logic circuit, or may be implemented by a central processing unit, a digital signal processor, or a field programmable gate array contained in an electronic device.

[0087] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, modules and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0088] An embodiment of the present application discloses an electronic device, comprising: a processor; and a memory storing a computer program. When the computer program is executed by the processor, the processor executes the above-mentioned satellite-based earthquake early warning method.

[0089] For example, refer to Figure 3 , Figure 3 The electronic device 30 shown includes a processor 301 and a memory 303. The processor 301 and the memory 303 are connected, for example, via a bus 302. Optionally, the electronic device 30 may further include a transceiver 304. It should be noted that in practice, the number of transceivers 304 is not limited to one, and the structure of the electronic device 30 does not constitute a limitation on the embodiments of the present invention.

[0090] The processor 301 may be a CPU (Central Processing Unit), a general-purpose processor, a DSP (Digital Signal Processor), an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It may implement or execute the various exemplary logic blocks, modules, and circuits described in the disclosure of the present invention. The processor 301 may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like.

[0091] The bus 302 may include a path for transmitting information between the above components. The bus 302 may be a PCI (Peripheral Component Interconnect) bus or an EISA (Extended Industry Standard Architecture) bus. The bus 302 may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 3 Only one thick line is used in the diagram, but this does not mean that there is only one bus or one type of bus.

[0092] The memory 303 can be a ROM (Read Only Memory) or other types of static storage devices that can store static information and instructions, a RAM (Random Access Memory) or other types of dynamic storage devices that can store information and instructions, or an EEPROM (Electrically Erasable Programmable Read Only Memory), a CD-ROM (Compact Disc Read Only Memory) or other optical disk storage, optical disk storage (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), a magnetic disk storage medium or other magnetic storage device, or any other storage medium that can be used to carry or store desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited to these.

[0093] The memory 303 is used to store application code for executing the solution of the present invention, and the execution is controlled by the processor 301. The processor 301 is used to execute the application code stored in the memory 303 to implement the content shown in the above method embodiment.

[0094] Figure 3 The electronic device shown is only an example and should not limit the functions and scope of use of the embodiments of the present invention.

[0095] An embodiment of the present application discloses a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the processor executes a satellite-based earthquake early warning method.

[0096] It should be understood that although the steps in the flowcharts of the accompanying drawings are shown in sequence as indicated by the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some of the steps in the flowcharts of the accompanying drawings may include multiple sub-steps or multiple stages, and these sub-steps or stages are not necessarily executed at the same time, but can be executed at different times, and their execution order is not necessarily sequential, but can be executed in turn or alternately with other steps or at least a portion of the sub-steps or stages of other steps.

[0097] The above are only some of the implementation methods of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A satellite-based earthquake early warning method, characterized in that: include: Determine the initial crustal deformation data of the target monitoring area corresponding to the initial satellite; In a case where the initial crustal deformation data is greater than the preset crustal deformation data, determining a plurality of target satellites corresponding to the initial crustal deformation data and acquiring first radar image information respectively corresponding to the plurality of target satellites; determining a plurality of crustal deformation differences based on a plurality of first radar image information and second radar image information corresponding to the initial satellite; Based on the multiple crustal deformation differences, a target terminal is determined and earthquake warning information is generated, and the earthquake warning information is sent to the target terminal.

2. The method according to claim 1, characterized in that The determining of the initial crustal deformation data of the target monitoring area corresponding to the initial satellite includes: Acquire at least two pieces of second radar image information corresponding to the initial satellite, wherein the at least two pieces of second radar image information are image information collected by the initial satellite in different continuous operation cycles; generating an interference image based on the preprocessed information of at least two second radar images; Based on the interference image, the initial crust deformation data is determined.

3. The method according to claim 1, characterized in that When the initial crustal deformation data is greater than the preset crustal deformation data, determining a plurality of target satellites corresponding to the initial crustal deformation data and acquiring first radar image information respectively corresponding to the plurality of target satellites includes: Determining a crustal deformation level corresponding to the initial crustal deformation data, and obtaining an operating period corresponding to the initial satellite; determining a monitoring time interval for monitoring the target monitoring area based on the crust deformation level; Based on the operation cycle and the monitoring time interval, a plurality of target satellites are determined from the acquired plurality of standby satellites, and first radar image information respectively corresponding to the plurality of target satellites is acquired.

4. The method according to claim 3, characterized in that The step of determining a plurality of target satellites from the acquired plurality of standby satellites based on the operation cycle and the monitoring time interval includes: Acquiring operation information corresponding to each of the plurality of standby satellites, and determining, based on the operation information, first time points at which each of the plurality of standby satellites performs image acquisition of the target monitoring area; Based on the operation cycle, obtaining a second time point corresponding to the initial satellite, wherein the second time point is a time point when the initial satellite operates to the target monitoring area for the second time to collect images; determining a plurality of real time intervals based on the second time point and the first time point; When any real time interval among the multiple real time intervals is not equal to the monitoring time interval, and a difference between the two is less than a preset difference, multiple target satellites are determined from the multiple standby satellites based on the retrieved monitoring time interval range.

5. The method according to claim 1, wherein The determining of a plurality of crustal deformation differences based on the plurality of first radar image information and the second radar image information corresponding to the initial satellite includes: sorting the plurality of first radar image information and the second radar image information in time to obtain a plurality of radar image information to be measured, and performing a comparison process on two temporally adjacent radar image information among the plurality of radar image information to be measured to obtain a plurality of target crustal deformation data; The plurality of crustal deformation differences are obtained by performing difference calculation on two target crustal deformation data that are adjacent in corresponding time among the plurality of target crustal deformation data.

6. The method according to claim 1, characterized in that The determining of a target terminal and generating earthquake early warning information based on the multiple crustal deformation differences includes: In the case that there is a positive growth relationship between any three temporally adjacent crustal deformation differences among the plurality of crustal deformation differences, determining a pre-earthquake source corresponding to the target monitoring area; Constructing a priority communication area based on the pre-earthquake source and a preset first range demarcation rule; The earthquake early warning information is generated, and all terminals in the target monitoring area are determined as target terminals, and the target terminals located in the priority communication area are determined as priority communication target terminals.

7. The method according to claim 1, characterized in that The determining of a target terminal and generating earthquake early warning information based on the multiple crustal deformation differences includes: When any crustal deformation difference among the multiple crustal deformation differences is greater than a preset crustal deformation difference, constructing a communication area based on a preset second range division rule and obtaining spatial location information corresponding to all target terminals within the communication area; The earthquake early warning information is generated, and based on the spatial position information, a plurality of terminals located indoors are screened out from the plurality of target terminals, and the plurality of terminals are determined as priority communication target terminals.

8. A satellite-based earthquake early warning device, characterized in that: include: An information determination module, used to determine the initial crustal deformation data of the target monitoring area corresponding to the initial satellite; an image acquisition module, configured to, when the initial crustal deformation data is greater than a preset crustal deformation data, determine a plurality of target satellites corresponding to the initial crustal deformation data and acquire first radar image information corresponding to each of the plurality of target satellites; a crustal deformation difference determining module, configured to determine a plurality of crustal deformation differences based on a plurality of first radar image information and second radar image information corresponding to the initial satellite; An information sending module is used to determine a target terminal and generate earthquake warning information based on the multiple crustal deformation differences, and send the earthquake warning information to the target terminal.

9. An electronic device, characterized in that: include: processor; A memory storing a computer program, which, when executed by the processor, causes the processor to perform the method according to any one of claims 1 to 7.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the processor is caused to perform the method according to any one of claims 1 to 7.

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