Earthquake early warning method and system
By automatically calculating the local earthquake intensity and countdown on the intelligent earthquake early warning terminal, the automatic broadcasting of earthquake early warning broadcasts has been realized, which solves the timeliness and accuracy problems caused by manual coordination in the existing technology and improves the efficiency of earthquake early warning.
Patent Information
- Application Number
- CN202511991807.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-26
- Publication Date
- 2026-03-20
AI Technical Summary
Existing emergency broadcasting systems require manual coordination and dispatch during earthquake early warning, making it difficult to guarantee timeliness and accuracy.
By automatically calculating the local earthquake intensity and countdown on the intelligent earthquake early warning terminal, and broadcasting earthquake early warnings using earthquake time, intensity, epicenter latitude and longitude, and local latitude and longitude, automatic broadcasting is achieved.
This improved the efficiency of earthquake early warning broadcasts, eliminated the need for manual coordination and scheduling, and ensured the timeliness and accuracy of earthquake early warnings.
Smart Images
Figure CN121708710A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of emergency broadcasting, in particular to a seismic early warning method and system. BACKGROUND
[0002] The intelligent terminal of the existing market of emergency broadcasting can only simulate the production of seismic early warning broadcasting according to the national standard of emergency broadcasting by manual operation. When natural disasters are detected, different departments coordinate and manually produce and broadcast the broadcasting message in accordance with the standard of emergency broadcasting; but in actual operation, the time efficiency and accuracy need to be considered for the advance countdown of the seismic early warning broadcasting. SUMMARY
[0003] The seismic early warning method and system provided by the present application can automatically calculate the local seismic intensity and seismic countdown time when receiving the seismic information, thereby effectively improving the seismic early warning efficiency.
[0004] In a first aspect, the present application provides a seismic early warning method, which is executed on a seismic early warning intelligent terminal, and the method comprises: obtaining the seismic time, seismic intensity, epicenter latitude and longitude of the earthquake, and local latitude and longitude, and converting the epicenter latitude and longitude into a first coordinate in a rectangular coordinate system and converting the local latitude and longitude into a second coordinate in the rectangular coordinate system; calculating the propagation distance between the local latitude and longitude and the epicenter latitude and longitude according to the first coordinate and the second coordinate; calculating the local seismic intensity according to the seismic intensity and the propagation distance; calculating the local seismic countdown time according to the seismic time and the propagation distance; performing seismic early warning broadcasting according to the local seismic intensity and the local seismic countdown time.
[0005] Optionally, the calculation of the local seismic intensity according to the seismic intensity and the propagation distance comprises: determining a first intermediate value according to the quotient of the propagation distance and a saturation factor; summing the first intermediate value and a fixed constant to obtain a second intermediate value; performing logarithmic operation with 10 as the base number and the second intermediate value as the real number, and weighting the result of the logarithmic operation according to a decay coefficient to obtain an intensity decay value; determining the local seismic intensity by subtracting the intensity decay value from the seismic intensity.
[0006] Optionally, the calculation of the local seismic countdown time according to the seismic time and the propagation distance comprises: determining the total propagation time by using the quotient of the propagation distance and the seismic wave propagation speed; determine the propagated time according to the difference between the current time and the earthquake time; determine the local earthquake countdown according to the difference between the total propagation time and the propagated time.
[0007] Optionally, the earthquake warning broadcast according to the local earthquake intensity and the local earthquake countdown comprises: convert the local earthquake intensity and the local earthquake countdown into voice data required for the earthquake warning broadcast and play the voice data.
[0008] Optionally, the earthquake warning broadcast according to the local earthquake intensity and the local earthquake countdown comprises: when the local earthquake countdown is not greater than a preset threshold, issue an emergency alarm.
[0009] Optionally, the conversion of the epicenter latitude and longitude into a first coordinate in a rectangular coordinate system and the conversion of the local latitude and longitude into a second coordinate in the rectangular coordinate system comprise: construct a three-axis rectangular coordinate system with the center of the earth as the origin, and determine the first coordinate of the epicenter latitude and longitude in the three-axis rectangular coordinate system according to the earth radius and the epicenter latitude and longitude; construct a three-axis rectangular coordinate system with the center of the earth as the origin, and determine the second coordinate of the local latitude and longitude in the three-axis rectangular coordinate system according to the earth radius and the local latitude and longitude.
[0010] Optionally, the calculation of the propagation distance between the local latitude and longitude and the epicenter latitude and longitude according to the first coordinate and the second coordinate comprises: according to the first coordinate and the second coordinate, calculate the straight-line distance between the local latitude and longitude and the epicenter latitude and longitude using a two-point straight-line distance formula, and take the straight-line distance as the propagation distance.
[0011] In a second aspect, the present application also provides a seismic warning system, comprising: a front-end system, which is in communication connection with a local earthquake system, and is used to acquire seismic information from the local earthquake system in real time; a broadcast system, which is in communication connection with the front-end system, and is used to acquire seismic information from the front-end system in real time and broadcast the seismic information; a plurality of intelligent terminals, which are in communication connection with the broadcast system, and are used to receive the seismic information broadcast by the broadcast system and execute the method according to any one of the preceding aspects.
[0012] Optionally, the front-end system and the local earthquake system maintain connection by using a heartbeat signal; the broadcast system and the plurality of intelligent terminals maintain connection by using an MQTT service.
[0013] Optionally, the communication data between the front-end system and the broadcast system and the communication data between the broadcast system and the intelligent terminal are encrypted, the intelligent terminal decrypts and checks the received seismic information, and when the intelligent terminal determines that the data is incorrect or lost, the received seismic information is discarded.
[0014] In the technical scheme provided by the present application, the intelligent terminal acquires seismic time, seismic intensity, epicenter latitude and longitude, and local latitude and longitude, and after receiving the information, automatically calculates local seismic intensity and local seismic countdown in real time, and can automatically broadcast a seismic warning according to the local seismic intensity and the local seismic countdown, thereby eliminating the manual coordination and scheduling process, realizing automatic broadcasting of the seismic warning, and effectively improving the broadcasting efficiency of the seismic warning. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 The flowchart of the seismic warning method of an embodiment of the present application is shown in the figure. Figure 2 The schematic diagram of the seismic warning system of another embodiment of the present application is shown in the figure. DETAILED DESCRIPTION
[0016] To make the objectives, technical schemes, and advantages of the embodiments of the present application clearer, the technical schemes in the embodiments of the present application will be described in detail below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.
[0017] The present application provides a seismic warning method, which is executed on a seismic warning intelligent terminal, as shown in the figure. Figure 1 The method comprises the following steps: acquiring seismic time, seismic intensity, epicenter latitude and longitude, and local latitude and longitude, and converting the epicenter latitude and longitude into a first coordinate in a rectangular coordinate system and converting the local latitude and longitude into a second coordinate in the rectangular coordinate system; In some embodiments, the seismic time, seismic intensity, epicenter latitude and longitude, and local latitude and longitude are obtained from a local seismic system, and in order to facilitate subsequent calculation, the epicenter latitude and longitude and the local latitude and longitude need to be converted into a first coordinate and a second coordinate in a rectangular coordinate system.
[0018] According to the first coordinate and the second coordinate, the propagation distance between the local latitude and longitude and the epicenter latitude and longitude is calculated; In some embodiments, the first coordinate and the second coordinate in the rectangular coordinate system can be used to calculate the propagation distance by a distance calculation formula. Since the calculation of the earthquake time and the attenuation of the earthquake intensity both depend on the propagation distance during the propagation of the earthquake wave, the propagation distance needs to be calculated first in this step.
[0019] According to the earthquake intensity and the propagation distance, the local earthquake intensity is calculated. In some embodiments, the attenuation of the earthquake intensity is calculated by the earthquake intensity and the propagation distance, and thus the local earthquake intensity is calculated.
[0020] According to the earthquake time and the propagation distance, the local earthquake countdown is calculated. In some embodiments, the time of the earthquake wave propagating to the local place is calculated by the earthquake time and the propagation distance, and thus the local earthquake countdown is obtained.
[0021] According to the local earthquake intensity and the local earthquake countdown, the earthquake warning broadcast is performed.
[0022] In some embodiments, the local earthquake intensity and the local earthquake countdown are the key information during the earthquake warning, and thus the local earthquake intensity and the local earthquake countdown can be converted into broadcast data to perform the earthquake warning broadcast.
[0023] In the technical solution provided in the embodiments of the present application, the intelligent terminal acquires the information such as the earthquake time, the earthquake intensity, the epicenter latitude and longitude, and the local latitude and longitude, and after receiving the foregoing information, the local earthquake intensity and the local earthquake countdown are calculated automatically in real time, and the earthquake warning broadcast can be performed automatically according to the local earthquake intensity and the local earthquake countdown, so that the manual coordination and scheduling process is omitted, the automatic broadcast of the earthquake warning broadcast is realized, and the broadcast efficiency of the earthquake warning broadcast is effectively improved.
[0024] As an optional implementation, the calculation of the local earthquake intensity according to the earthquake intensity and the propagation distance comprises: A first intermediate value is determined according to the quotient of the propagation distance and the saturation factor; The first intermediate value is summed with a fixed constant to obtain a second intermediate value; A logarithmic operation is performed on the second intermediate value with 10 as the base number, and the result of the logarithmic operation is weighted according to an attenuation coefficient to obtain an intensity attenuation value; The local earthquake intensity is determined by subtracting the intensity attenuation value from the earthquake intensity.
[0025] In some embodiments, the local earthquake intensity can be calculated according to the following formula:
[0026] wherein, I is local seismic intensity, is the seismic intensity at the epicenter, 4 is the attenuation coefficient, d is the propagation distance, 10 is the saturation constant, and therefore, 1 is a fixed constant.
[0027] As an optional implementation, the calculating the local seismic countdown according to the earthquake time and the propagation distance comprises: determining the total propagation time by using the quotient of the propagation distance and the seismic wave propagation speed; determining the propagated time according to the difference between the current time and the earthquake time; determining the local seismic countdown by using the difference between the total propagation time and the propagated time.
[0028] In some embodiments, the calculation of the local seismic countdown can be performed according to the following formula:
[0029] wherein, t is the local seismic countdown, d is the propagation distance, v is the seismic wave propagation speed, is the propagated time.
[0030] As an optional implementation, the performing the earthquake warning broadcast according to the local seismic intensity and the local seismic countdown comprises: converting the local seismic intensity and the local seismic countdown into voice data required by the earthquake warning broadcast and playing.
[0031] In some embodiments, after receiving the earthquake information, the intelligent terminal calculates the local seismic countdown and the local seismic intensity, and then converts the content of the local seismic countdown and the local seismic intensity into text-to-speech, and reminds according to the local seismic countdown.
[0032] As an optional implementation, the performing the earthquake warning broadcast according to the local seismic intensity and the local seismic countdown comprises: when the local seismic countdown is not greater than a preset threshold, issuing an emergency alarm.
[0033] In some embodiments, the preset threshold may, for example, be 10 seconds, 5 seconds, or 20 seconds, etc. As some preferred implementations, the preset threshold can be set according to the local seismic intensity, for example, the higher the local seismic intensity, the longer the preset threshold. Since the local seismic countdown reaching the preset threshold indicates that the local earthquake is about to occur, it is necessary to remind in a more direct and eye-catching way, that is, to issue an emergency alarm.
[0034] As an optional implementation, converting the epicenter latitude and longitude to a first coordinate system in a rectangular coordinate system, and converting the local latitude and longitude to a second coordinate system in a rectangular coordinate system includes: A three-axis rectangular coordinate system is constructed with the Earth's center as the origin. Based on the Earth's radius and the longitude and latitude of the epicenter, the first coordinate of the epicenter's longitude and latitude in the three-axis rectangular coordinate system is determined. A three-axis rectangular coordinate system is constructed with the Earth's center as the origin. Based on the Earth's radius and the local latitude and longitude, the second coordinate of the local latitude and longitude in the three-axis rectangular coordinate system is determined.
[0035] In some embodiments, given the latitude and longitude, the coordinates in the rectangular coordinate system can be calculated using the following formula:
[0036]
[0037]
[0038] Where θ represents latitude, φ represents longitude, x, y, and z are the three-dimensional coordinates in a rectangular coordinate system, and R is the Earth's radius, which can be, for example, 6378 kilometers. When calculating the first and second coordinates, the epicenter's latitude and longitude and the local latitude and longitude can be substituted into the aforementioned formula for calculation.
[0039] As an optional implementation, calculating the propagation distance between the local latitude and longitude and the epicenter latitude and longitude based on the first coordinate and the second coordinate includes: Based on the first and second coordinates, the straight-line distance between the local latitude and longitude and the epicenter latitude and longitude is calculated using the two-point straight-line distance formula, and the straight-line distance is used as the propagation distance.
[0040] In some embodiments, since seismic waves typically spread outward in a spherical pattern during propagation, the propagation distance from the epicenter to the local area should be calculated linearly. The propagation distance can be calculated, for example, using the following formula:
[0041] Where d is the propagation distance, The first coordinate of the epicenter. This is the second local coordinate.
[0042] This invention also provides an earthquake early warning system, such as... Figure 2 As shown, it includes: A front-end system, which is communicatively connected to the local earthquake system, is used to acquire earthquake information from the local earthquake system in real time. In some embodiments, the front-end system accesses the local seismic system, acquires seismic information of the local seismic system, and pushes to the broadcast system.
[0043] The broadcast system is in communication connection with the front-end system, acquires seismic information from the front-end system in real time, and broadcasts; In some embodiments, the broadcast system is used to send seismic information to multiple intelligent terminals. After the broadcast system acquires seismic information from the front-end system, the broadcast system immediately sends the seismic information to the multiple intelligent terminals, without manual coordination and scheduling. After the intelligent terminals receive the seismic information, the intelligent terminals perform local seismic intensity and local seismic countdown calculation by themselves.
[0044] Multiple intelligent terminals, multiple intelligent terminals are in communication connection with the broadcast system, and multiple intelligent terminals are used to receive seismic information broadcasted by the broadcast system and execute the method of any one of the preceding embodiments.
[0045] In some embodiments, the intelligent terminals are distributed in users' homes or public places. After receiving the seismic information sent by the broadcast system, the intelligent terminals perform local seismic intensity and local seismic countdown calculation by themselves.
[0046] As an optional implementation, the front-end system and the local seismic system maintain connection by using heartbeat signals. The broadcast system and the multiple intelligent terminals maintain connection by using MQTT service.
[0047] In some embodiments, when the front-end system is started, the front-end system initializes the adaptation of the local seismic system, maintains connection by heartbeat, acquires real-time seismic information generated by the seismic system, and forms a message according to the tar protocol standard and pushes to the broadcast system. When the broadcast system server is started, the broadcast system server initializes the MQTT service, which is used for heartbeat connection and channel maintenance between the intelligent terminal and the broadcast system, and seismic message distribution. When the broadcast system server is started, the broadcast system server initializes the detection of the front-end system service and the heartbeat connection, maintains the heartbeat connection by using the emergency broadcast system tar protocol, and lays a foundation for subsequent data transmission. After the intelligent terminal is started, the intelligent terminal automatically detects the MQTT service and the heartbeat connection, and ensures the normal work. This is to ensure that the seismic communication interface of the equipment can be normally used, and to lay a foundation for subsequent data transmission. In some preferred embodiments, the broadcast system and the intelligent terminal broadcast seismic information based on the MQTT-based publish / subscribe transmission protocol. The data format of the MQTT service for the intelligent terminal publishing (PUBLISH message type) is JSON.
[0048] As an optional implementation, the communication data between the front-end system and the broadcast system and the communication data between the broadcast system and the intelligent terminal are all encrypted, the intelligent terminal decrypts and checks the received seismic information, and when the intelligent terminal determines that the data is incorrect or lost, the received seismic information is discarded.
[0049] In some embodiments, the data corresponding to the seismic information needs to be encrypted when transmitted, and when the intelligent terminal receives the data corresponding to the seismic information, the data needs to be decrypted first for checking to ensure the integrity and accuracy of the data. If the data is found to be incorrect or lost, no processing is performed. The data checking processing can ensure the accuracy of the data and ensure that the data received by the intelligent terminal is accurate.
[0050] The above merely describes specific embodiments of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.
Claims
1. An earthquake early warning method, characterized in that, Executed on an earthquake early warning smart terminal, the method includes: The system obtains the earthquake time, earthquake intensity, epicenter latitude and longitude, and local latitude and longitude, and converts the epicenter latitude and longitude into the first coordinate in a rectangular coordinate system, and the local latitude and longitude into the second coordinate in a rectangular coordinate system. Based on the first and second coordinates, calculate the propagation distance between the local latitude and longitude and the epicenter latitude and longitude; Calculate the local earthquake intensity based on the earthquake intensity and the propagation distance; Calculate the local earthquake countdown based on the earthquake time and the propagation distance; Earthquake early warning broadcasts will be conducted based on the local earthquake intensity and local earthquake countdown.
2. The method according to claim 1, characterized in that, The calculation of local earthquake intensity based on the earthquake intensity and the propagation distance includes: The first intermediate value is determined based on the quotient of the propagation distance and the saturation factor; Summing the first intermediate value with a fixed constant yields the second intermediate value; Using 10 as the base and the second intermediate value as the argument, perform a logarithmic operation, and then weight the results of the logarithmic operation according to the attenuation coefficient to obtain the intensity attenuation value; The local earthquake intensity is determined by subtracting the intensity attenuation value from the earthquake intensity.
3. The method according to claim 1, characterized in that, The calculation of the local earthquake countdown based on the earthquake time and the propagation distance includes: The total propagation time is determined by the quotient of the propagation distance and the seismic wave propagation speed. The propagation time is determined based on the difference between the current time and the earthquake time. The local earthquake countdown is determined by using the difference between the total propagation time and the propagation time already completed.
4. The method according to claim 1, characterized in that, The earthquake early warning broadcast based on the local earthquake intensity and local earthquake countdown includes: Convert local earthquake intensity and local earthquake countdown into voice data required for earthquake early warning broadcasts and play it.
5. The method according to claim 1, characterized in that, The earthquake early warning broadcast based on the local earthquake intensity and local earthquake countdown includes: An emergency alarm will be issued when the local earthquake countdown is no greater than a preset threshold.
6. The method according to claim 1, characterized in that, The step of converting the epicenter latitude and longitude to a first coordinate system in a rectangular coordinate system and converting the local latitude and longitude to a second coordinate system in a rectangular coordinate system includes: A three-axis rectangular coordinate system is constructed with the Earth's center as the origin. Based on the Earth's radius and the longitude and latitude of the epicenter, the first coordinate of the epicenter's longitude and latitude in the three-axis rectangular coordinate system is determined. A three-axis rectangular coordinate system is constructed with the Earth's center as the origin. Based on the Earth's radius and the local latitude and longitude, the second coordinate of the local latitude and longitude in the three-axis rectangular coordinate system is determined.
7. The method according to claim 1, characterized in that, The calculation of the propagation distance between the local latitude and longitude and the epicenter latitude and longitude based on the first coordinate and the second coordinate includes: Based on the first and second coordinates, the straight-line distance between the local latitude and longitude and the epicenter latitude and longitude is calculated using the two-point straight-line distance formula, and the straight-line distance is used as the propagation distance.
8. An earthquake early warning system, characterized in that, include: A front-end system, which is communicatively connected to the local earthquake system, is used to acquire earthquake information from the local earthquake system in real time; A broadcasting system, which is communicatively connected to the front-end system, wherein the broadcasting system acquires earthquake information from the front-end system in real time and broadcasts it. Multiple smart terminals are connected in communication with the broadcasting system. The multiple smart terminals are used to receive earthquake information broadcast by the broadcasting system and to perform the method as described in any one of claims 1-7.
9. The earthquake early warning system according to claim 8, characterized in that, The pre-emergence system maintains a connection with the local seismic system using a heartbeat signal; The broadcast system maintains connections with multiple smart terminals using MQTT service.
10. The earthquake early warning system according to claim 8, characterized in that, The communication data between the front-end system and the broadcast system, as well as the communication data between the broadcast system and the smart terminal, are encrypted. The smart terminal decrypts and verifies the received earthquake information. When the smart terminal determines that the data is incorrect or lost, it discards the received earthquake information.