KR20180129500A - Method of warning disaster/calamity for using satellite image and server of warning disaster/calamity performing the method - Google Patents

Abstract

The present invention relates to a disaster and calamity warning method using a satellite image and a disaster and calamity warning server performing the same. Particularly, the disaster and calamity warning method includes the step of: determining a disaster risk expected area in which damage is expected after an evacuation time and a risk signal generation area with a risk signal to expect the disaster and calamity as a central point from a satellite image; and providing a second warning for the disaster and calamity to a user terminal located in a coverage area of a target base station after providing a first warning for the disaster and calamity to a user terminal located in the disaster risk expected area. Accordingly, the present invention can more quickly predict whether the disaster and calamity occur.

Description

TECHNICAL FIELD [0001] The present invention relates to a disaster / alert alarm method using a satellite image and a disaster / alarm alert server for performing the method. [0002]

The present invention relates to a disaster / alarm alarm method using satellite images and a disaster / alarm alarm server for performing the method, and more particularly, to a disaster / alarm alarm server using satellite images and location information of user terminals, To a method and server for providing a disaster / disaster alert to a user located in the Internet.

In the present invention, a disaster occurs when a disaster occurs due to an unusual weather, and a surge occurs locally. In order to solve this problem, disaster prevention information is provided through a disaster broadcast which is conducted in order to cope with a disaster in advance, or disaster prevention information is transmitted through a communication medium of a radio or other broadcasting according to the occurrence of a disaster. However, disaster broadcasting provides disaster prevention information to residents in the disaster area. If the residents can not listen to the broadcast, the disaster can not prepare for the expected disaster, resulting in loss of property and personal life. And communication media such as radio have a problem in that the information can not be delivered promptly to guerrilla disaster due to the fact that a person drives the device directly and transmits the voice.

In addition, as mentioned above, disaster prevention information on disasters / disasters is limited to residents in the disaster occurrence area, and it is necessary to distinguish areas for providing disaster prevention information through administrative areas or other methods in each area, . In other words, it is not suitable to prepare local disaster according to codes of different administrative districts when the disaster providing information on disaster prevention information by each administrative district is not fixed, and the current disaster is moving in the administrative district.

Furthermore, in case of an emergency, it is necessary to keep all devices always in an operable state in order to carry out normal exchange of disaster prevention information between administrative districts. It is very difficult to check if there is a problem in broadcasting system or a problem of broadcasting receiver It is true.

In the case of the existing location-based disaster / disaster warning service, only the current location of the floating population is detected at the time of the disaster / disaster, and the past and present flow population distribution and route can not be stored or analyzed. There are limitations in predicting the distribution of the population and the route.

Therefore, there is a need for a disaster / alert system that combines floating population information to minimize the loss of property and human life due to an emergency or a rapidly changing disaster / disaster.

Disclosure of Invention Technical Problem [8] The present invention provides a method of predicting whether a disaster / disaster occurs in a short period of time by identifying a danger signal causing a disaster / disaster using a satellite image acquired at the same position at a predetermined time interval .

The present invention predicts a disaster risk expected area after a possible evacuation time from a danger signal generation area with the identified danger signal as a center point, thereby securing a time for actual evacuation of a user according to a danger signal formed in the continent .

The present invention detects a floating population in a disaster risk expected area through location information of a user terminal provided with a first alert for a disaster / disaster, and then provides a second alarm having a time difference by selecting a target base station, The present invention provides a method of providing an alarm service to users located in an area where damage due to a disaster / disaster is likely to occur before a disaster caused by the disaster occurs.

The present invention can be applied to a system for detecting a flow of a moving population in a disaster risk expected area through location information of a user terminal that has been provided with a primary alarm and thereby expanding a range for providing a secondary alarm by re- ≪ / RTI >

Disclosure of the Invention The present invention provides a disaster / disaster alarm server that provides information on a disaster / disaster alarm server to a user who is witnessed by a user who is provided with a disaster / Quot; < / RTI >

The disaster / alert alarm method according to one embodiment includes the steps of: identifying a danger signal expected to cause a disaster / disaster from a satellite image; Determining a danger signal generation area for identifying a degree of disaster / disaster based on the identified danger signal as a center point; Determining a disaster risk expected area expected to cause damage due to a disaster / disaster after the evacuable time in the determined danger signal generation area; Providing a first alert for a disaster / disaster to a user terminal located within the determined disaster risk expected area; Selecting a target base station using the floating population data and the weak area data in the disaster risk expected area; And providing a second alert for a disaster / disaster to a user terminal located in a coverage area of the selected target base station.

The step of identifying the danger signal according to an exemplary embodiment may identify the danger signal by analyzing the image information of the satellite image acquired at the same position at a predetermined time interval and the weather information at the time when the satellite image is captured.

According to an embodiment of the present invention, the image information of the satellite image includes the moving state of the atmospheric state according to the change of pixels or brightness of the satellite image acquired at the predetermined time interval, And a meteorological phenomenon occurring in the atmosphere at the time when the satellite image is captured.

The step of identifying a danger signal according to an exemplary embodiment of the present invention includes detecting at least one satellite image acquired at the predetermined time interval based on a moving state of the atmospheric air in the satellite image and a change in the weather phenomenon exceeding a preset disaster occurrence reference Extracting pixels of the satellite image; And determining a risk signal indicative of a specific weather phenomenon causing a disaster / disaster by using pixels of the extracted satellite image or determining a risk signal from disaster / disaster site information on a damage scene witnessed by the user have.

The determining of the danger signal according to an embodiment may determine the center point of the temporary area covering the pixels of the extracted satellite image as the danger signal.

The step of determining a danger signal according to an exemplary embodiment may determine a pixel having a decreased variation width as a danger signal for pixels whose change values are decreased among pixels of the extracted satellite image.

The step of determining a danger signal generation region according to an exemplary embodiment may determine a danger signal generation region having a different radius depending on a type of a disaster / disaster indicated by the danger signal with a center point of the identified danger signal.

The step of determining a disaster risk expected area according to an exemplary embodiment includes extracting a wind speed in a coordinate of a satellite image where a danger signal is generated by using an atmospheric wind field formed on an earth surface, Estimating a center point of a disaster risk occurrence area expected to move after a possible time of evacuation according to the extracted wind speed at a center point of the danger signal generation area; And selecting a disaster risk occurrence area having a radius larger than a radius of the danger signal generation area.

The disaster / alarm method according to an exemplary embodiment may include receiving disaster / disaster site information on a damaged site that a user witnessed from a user terminal owned by a user who is provided with an alarm service for a disaster / disaster .

The providing of the primary alert for a disaster / disaster according to an exemplary embodiment may include providing a user terminal installed with a disaster application providing alarm service related to a disaster / disaster in the disaster risk expected area using the location information of the user terminal It is possible to provide a primary alert for disaster / disaster as an object.

The step of selecting a target base station according to an exemplary embodiment of the present invention includes extracting a floating population data indicating a degree of inflow or outflow in the disaster risk expected area using the location information of the user terminal provided with the primary alert; Determining the inflow, outflow, or stagnation degree to determine a vulnerable area in the disaster risk expected area; Determining a disaster / disaster vulnerable area in which a disaster / disaster vulnerable facility in the disaster risk expected area is installed; And determining a target base station for providing a secondary alert including the floating population vulnerable area and the disaster / disaster vulnerable area in the disaster risk expected area.

The providing of the second alert for a disaster / disaster according to an exemplary embodiment may include providing a second alert for a user terminal in which the disaster application is installed and a user terminal for which the disaster application is not installed in the coverage area of the target base station .

The step of providing the secondary alarm for the disaster / disaster according to an exemplary embodiment may include the step of, when providing the secondary alarm, for a user terminal equipped with a disaster application for dispersion of transmission load, And if the user terminal does not have the disaster application installed, a secondary alarm may be transmitted as a message type.

According to an exemplary embodiment, the secondary alert is a message type notification service including notification information provided to a user terminal through the primary alert and prediction information on a disaster / disaster, and the prediction information includes a disaster / Type of disaster, expected evacuation time due to disaster / disaster, time of disaster / disaster, and hazardous location.

According to one embodiment, when the floating population in the vulnerable area of the floating population included in the disaster risk expected area is stalled after providing the second alarm, the unmanned airplane moves to the vulnerable area of the stagnant floating population And a step of controlling the control unit.

The disaster / alarm method according to an embodiment of the present invention is a method for providing a second alert to a neighboring base station located adjacent to the determined target base station, Selecting step; And supporting a second alert for a disaster / disaster to a user terminal located in a coverage area of the selected peripheral base station.

The disaster / alert alarm server according to an embodiment includes a danger signal identification unit for identifying a danger signal expected to cause a disaster / disaster from a satellite image; A danger signal generation region determination unit for determining a risk signal generation region for determining a degree of disaster / disaster formation based on the identified danger signal as a center point; A disaster risk predicted area determining unit for determining a disaster risk expected area expected to cause damage due to a disaster / disaster after the evacuable time in the determined danger signal generation area; A first alarm providing unit for providing a first alarm for a disaster / disaster to a user terminal located in the determined disaster risk expected area; A target BS selection unit for selecting a target BS using the floating population data and the weak area data in the disaster risk expected area; And a second alarm providing unit for providing a second alarm for a disaster / disaster to a user terminal located in a coverage area of the selected target base station.

The danger signal identification unit according to an embodiment identifies the danger signal by analyzing the image information of the satellite image acquired at the same position at a predetermined time interval and the weather information at the time when the satellite image is captured, Wherein the information includes at least one pixel of the satellite image acquired at the predetermined time interval or a moving state of the atmospheric state according to a change in the brightness of the satellite image, And may include meteoric phenomena that occur in the atmosphere.

The danger signal identification unit may detect at least one satellite image acquired at the predetermined time interval based on at least one of a moving state of the atmospheric air in the satellite image and a satellite image having a change exceeding a predetermined disaster occurrence reference A pixel extracting unit for extracting pixels; And a danger signal determination unit for determining a danger signal indicating a specific weather phenomenon causing a disaster / disaster by using the pixels of the extracted satellite image.

The danger signal determination unit may determine the center point of the temporary area covering the pixels of the extracted satellite image as the danger signal.

The danger signal determination unit according to an exemplary embodiment may determine a pixel having a decreased change width as a danger signal for pixels whose change values are decreased among pixels of the extracted satellite image.

The danger signal generation region determining unit may determine a risk signal generation region having a different radius depending on the type of a disaster / disaster indicated by the risk signal, with the identified risk signal as a center point.

The disaster risk prediction region determining unit may include a wind speed extracting unit for extracting a wind speed in coordinates of a satellite image in which a danger signal is generated by using an atmospheric wind field formed on an earth surface; A center point predictor for predicting a center point of a disaster risk occurrence area expected to move after a possible evacuation time according to the extracted wind speed at a center point of the danger signal generation area; And a disaster risk occurrence region selection unit for selecting a disaster risk occurrence region having a radius larger than the radius of the danger signal generation region. The primary alert provider according to an exemplary embodiment of the present invention is a user terminal provided with a disaster application for providing an alarm service related to a disaster / disaster in the disaster risk expected area using the location information of the user terminal, Car alarms can be provided.

A target base station selection unit according to an embodiment of the present invention includes a floating population data extracting unit for extracting floating population data indicating the degree of inflow, outflow, or congestion in the disaster risk expected area using the location information of the user terminal provided with the primary alarm; A floating population vulnerable area determination unit for determining the inflow or outflow extent and determining a vulnerable area of the floating population in the disaster risk expected area; A disaster / disaster vulnerable area determination unit for determining a disaster / disaster vulnerable area in which a disaster / disaster vulnerable facility in the disaster risk expected area is installed; And a target base station determining unit for determining a target base station for providing a secondary alert including the floating population vulnerable area and the disaster / disaster vulnerable area in the disaster risk expected area.

The second alarm providing unit may provide a secondary alarm for the user terminal in which the disaster application is installed and the user terminal for which the disaster application is not installed in the coverage area of the target base station.

According to an exemplary embodiment, the secondary alert is a message type notification service including notification information provided to a user terminal through the primary alert and prediction information on a disaster / disaster, and the prediction information includes a disaster / Type of disaster, expected evacuation time due to disaster / disaster, time of disaster / disaster, and hazardous location.

The disaster / alert alarm server according to an exemplary embodiment of the present invention may be configured such that, after providing the second alert, if the floating population in the vulnerable area of the floating population included in the disaster risk expected area is stalled, And an unmanned aircraft controller for controlling the unmanned aircraft to move.

The disaster / alert alarm server according to an embodiment of the present invention may be configured such that, after providing the second alarm, if the floating population in the floating population vulnerable area included in the disaster risk expected area is stalled, A neighbor BS selection unit for selecting the neighbor BSs; And a second alarm support unit for supporting a second alarm for a disaster / disaster to a user terminal located in a coverage area of the selected peripheral base station.

The information providing unit according to an embodiment can receive disaster / disaster site information on a damage site that a user witnessed from a user terminal owned by a user who is provided with an alarm service related to a disaster / disaster.

According to an embodiment of the present invention, the disaster / alarm method can identify a danger signal that causes a disaster / disaster using a satellite image acquired at the same position at a predetermined time interval, Can be predicted more quickly.

According to an embodiment of the present invention, the disaster / accident alarm method predicts a disaster risk expected area after a possible evacuation time from a danger signal generation area centered on the identified danger signal, It is possible to secure time for the evacuation action.

According to an exemplary embodiment of the present invention, the disaster / alarm method can detect a floating population in a disaster risk expected area through location information of a user terminal receiving a first alarm for a disaster / disaster, It is possible to provide an alarm service to users located in areas where damage due to a disaster / disaster is a concern before a disaster caused by a danger signal occurs.

According to an embodiment of the present invention, the disaster / alarm method further includes re-selecting the target base station by detecting the flow of the flow population in the disaster risk expected area through the location information of the user terminal provided with the first alarm, You can extend the range you provide or control unmanned aircraft.

FIG. 1 is a diagram illustrating an overall configuration for providing a disaster / disaster alert using an artificial image according to an embodiment.
2 is a diagram illustrating a detailed configuration of a disaster / alarm server according to an exemplary embodiment of the present invention.
3 is a view for explaining an operation of identifying a danger signal by analyzing image information and weather information of a satellite image according to an exemplary embodiment.
4 is a view for explaining an operation of determining a danger signal indicating a specific weather phenomenon causing a disaster / disaster according to an embodiment.
5 is a diagram for explaining an operation of determining a danger signal indicating a specific weather phenomenon causing a disaster / disaster according to another embodiment.
6 is a view for explaining an operation of providing a primary alarm for a user terminal installed with a disaster application according to an embodiment.
7 is a view for explaining an operation of providing a secondary alert to a user terminal using a target base station according to an embodiment.
8 is a flowchart illustrating a disaster / alarm method according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a diagram illustrating an overall configuration for providing a disaster / disaster alert using an artificial image according to an embodiment.

1, the disaster / alert server 101 uses a satellite image 103 collected from the satellite 102 to provide a user located in an area where a disaster / disaster is likely to occur to be evacuated / Lt; RTI ID = 0.0 > a < / RTI >

More specifically, the satellite 102 may be fixed in a sky above the geostationary orbit to collect the satellite image 103 at a predetermined time interval with respect to a specific region of the ground surface. At this time, the satellite 102 can acquire the satellite image 103 at the same position at a predetermined time interval in order to more quickly predict whether disaster / disaster occurs in a short time. For example, the satellite 102 is located at the same position in the fixed orbit of the geostationary orbit, for a fixed specific region such as Korea and East Asia and Southeast Asia, and 16 infrared images at a spatial resolution of 500 km and a temporal resolution of 10 km It may be possible to provide images at intervals of two minutes (light bulb), every two minutes (East Asia).

Here, the satellite image 103 may be a color image at the same position in a specific region, and may be an image recorded according to time of the surface of the land, the surface of the ocean, clouds floating in the high-rise of the atmosphere, and the like.

Then, the disaster / alert server 101 can identify a danger signal that is expected to cause a disaster / disaster from the satellite image 103. Here, the danger signal can be identified through the satellite image 103, can rapidly develop according to time, and can be an indicator for identifying a disaster / disaster due to the spread of the weather. In other words, the disaster / alert server 101 receives a dangerous phenomenon as a specific weather phenomenon that causes a disaster / disaster such as a storm, a tsunami, a fire due to a fire due to a change in the state of the material from the satellite image 103, The signal can be identified.

At this time, the disaster / alert server 101 can use the weather information as well as the satellite image 103 to identify a more accurate danger signal. In other words, the satellite image (103) is collected from the sky above the equator, and the range of cloud and smoke floating in the air can be predicted, but there is actually a somewhat difficult part to check the size of cloud or smoke. Accordingly, the disaster / alarm server 101 of the present invention can additionally utilize the weather information for more precisely identifying the danger signal.

For example, the present invention provides an image of air pollution (aerosol, ozone index, formaldehyde, CHOCHO, etc.) photographed at a resolution of 7 ㅧ 8 km in Seoul every hour from a geostationary satellite for observing air pollution through an environmental satellite And can use it as weather information. The present invention can monitor most disasters / disasters such as lightning, storms, heavy rains, heavy snow, floods, air pollution, forest fires, and red tide in real time by real-time monitoring and precise analysis of these atmospheric environment satellite data.

The hazard signal may be represented in more than one satellite image 103, as the case may be. In other words, the disaster / disaster does not occur only in one place of the earth, but the disaster scale varies according to the type of disaster, and as it is possible to move by weather conditions, the disaster scale, moving speed, A plurality of points represented by the points 103 may be generated. Accordingly, the disaster / alert server 101 can analyze the difference between the pixels of the satellite images 103 collected at regular time intervals to determine the final danger signal. A more detailed configuration will be described with reference to FIGS. 3 to 5. FIG.

Thereafter, the disaster / alert server 101 can determine a danger signal generation region for grasping the degree of disaster / disaster occurring at an early stage of the risk signal as a center point. Here, the scale of disaster / disaster varies depending on the type of disaster, and in the case of meteorological disasters related to climate, the scale of damage may vary depending on the frequency of accidents involving rain and wind. Therefore, the disaster / alert server 101 can determine the danger signal generation area having different radii according to the type of the disaster / disaster indicated by the danger signal. For example, the disaster / alert server 101 can determine a danger signal generation area formed in a circle with a radius of 10 km around the pixel (x, y, t = 0) of the satellite image 103 indicated by the disaster signal have.

The disaster / alert server 101 can determine the disaster risk expected area expected to cause damage due to a disaster / disaster after the evacuable time in the determined danger signal generation area. The time available for evacuation can actually indicate the time of securing for the evacuation action of the residents. For this purpose, the disaster / alert server 101 can extract the wind speed in the coordinates of the satellite image where the danger signal is generated by using the wind field of the atmosphere formed on the ground surface. The disaster / alert server 101 can determine the disaster risk expected area expected to cause damage due to a disaster / disaster after the evacuable time considering the extracted wind speed. The disaster risk expected area may have an increased radius than the radius of the hazard signal area.

The disaster / alert alarm server 101 may provide a first alert for a disaster / disaster to a user terminal located in the determined disaster hazard expected area. In other words, the disaster / alert server 101 may provide a first alert for a disaster / disaster to a user terminal equipped with a disaster application providing an alarm service for a disaster / disaster within the disaster risk expected area. The disaster / alarm server 101 provides a PUSH type alarm through a disaster application installed in the user terminal. The notification information provided to the user terminal by the primary alarm includes information such as the occurrence of a disaster, the type of a disaster, The size of the disaster, the location of the current user terminal, and the like. For example, the disaster / alarm server 101 can provide a push-type primary alarm through a disaster application installed in a smart phone.

A user possessing a user terminal installed with a disaster application can grasp in advance that a disaster occurred prior to the occurrence of a disaster formed through the first alarm to a disaster risk expected area. In addition, the user terminal receiving the first alarm can be utilized as information for identifying a floating population in a future disaster risk expected area.

Thereafter, the disaster / alert server 101 can select the target base station using the floating population data and the pre-weakened area data in the disaster risk expected area. The floating population data can indicate the degree of inflow, outflow or congestion in the disaster risk expected area using the location information of the user terminal provided with the first alarm. The pre-vulnerable area data may be information that indicates the area of greatest risk due to a disaster / disaster vulnerable facility in case of a disaster / disaster. And, disaster / disaster vulnerable facilities may mean facilities with high risk of safety accidents due to collapse or subsidence due to disasters. For example, vulnerable disaster / disaster facilities may include chemical plants, nuclear power plants or theaters that are expected to be damaged by human life, old buildings, etc., which are expected to be damaged by materials stored in the facility.

The disaster / alert alarm server 101 can collectively analyze the floating population data and the pre-weakened area data to select a target base station located adjacent to the area in the disaster risk expected area, which intersects each data.

Thereafter, the disaster / alert server 101 may provide a second alert for a disaster / disaster to a user terminal located in the selected coverage area of the target base station. Here, it is possible to provide a secondary alarm for a user terminal in which a disaster application is installed and a user terminal in which a disaster application is not installed, within the coverage area of the target base station.

The disaster / alert server 101 provides a second alert to all the user terminals included in the coverage area of the target base station irrespective of whether or not the disaster application is installed, and the alert contents included in the second alert are 1) And 2) a warning in the form of a message including prediction information on a disaster / disaster.

In providing a secondary alert, the disaster / alert server 101 may provide a secondary alert in consideration of the number of user terminals present in the coverage area of the target base station. In detail, the target base station can provide a secondary alert to a user terminal existing in the coverage area of the target base station. Here, the target base station may generate traffic due to secondary alerts transmitted by providing secondary alerts to the user terminals existing in the coverage area of the target base station. Also, as the number of user terminals existing in the coverage area of the target base station increases, the amount of traffic also increases as the number of user terminals existing in the target base station increases, so that a transmission load of the target base station may occur.

As a result, the present invention can more effectively distribute the transmission load generated in the target base station so that the secondary alarms according to the number of the user terminals existing in the coverage area of the target base station can be collectively transmitted to the user terminal. That is, when there are a large number of user terminals existing in the coverage area of the target base station, the user terminal installed with the disaster application for the transmission load distribution transmits the secondary alert in the push type, The terminal transmits a secondary alarm as a message type, thereby dispersing the transmission load and providing a substantially hybrid alarm service.

For example, the present invention can select a method of transmitting a message in the case of a feature phone, while transmitting a push alert in the case of a smart phone for distributing transmission load in providing a car alarm.

If the floating population in the vulnerable area of the floating population included in the disaster risk expected area is stalled after providing the second alert, the disaster / alert server 101 may cause the unmanned airplane to move to the stagnant floating population vulnerable area Can be controlled. In addition, the disaster / alert server 101 can select a neighboring base station located adjacent to the determined target base station when the floating population in the floating population vulnerable area included in the disaster risk expected area is stalled. Thereafter, the disaster / alert server 101 can support a second alert for a disaster / disaster to a user terminal located in the coverage area of the selected peripheral base station.

The disaster / alert alarm server 101 can control to enable more efficient tracking management by utilizing an unmanned aerial vehicle or relief manpower according to the flow of the floating population in the disaster risk expected area. In addition, the disaster / alarm server 101 can derive a scheme for improving emergency relief efficiency and strengthening the resilience of cities by comparing / analyzing the flow population before and after a disaster caused by a danger signal.

The disaster / alert server 101 can receive disaster / disaster site information on the damaged site that the user witnessed from the user terminal owned by the user who is provided with the alarm service related to the disaster / disaster. The information providing unit 220 can obtain more accurate information through bidirectional information sharing between the user and the system by providing a disaster / disaster alert through active participation of the user.

2 is a diagram illustrating a detailed configuration of a disaster / alarm server according to an exemplary embodiment of the present invention.

Referring to FIG. 2, the disaster / alert alarm server utilizes the satellite image and the location tracking technology for the user terminal so as to prevent the occurrence of disasters / disasters such as air pollution, thunderstorms, and wildfires in areas where infrastructures are weak (localities including rural areas and low- Alarms can be provided. To this end, the disaster / alarm server 201 includes a danger signal identifying unit 202, a disaster signal generating area determining unit 205, a disaster risk anticipated area determining unit 206, a primary alarm providing unit 210, And may include a base station selection unit 211, a secondary alarm providing unit 216, an unmanned aerial vehicle control unit 217, a peripheral base station selection unit 218 and a secondary alarm support unit 219, and an information providing unit 220 .

The danger signal identification unit 202 can identify a danger signal expected to cause a disaster / disaster from the satellite image. Specifically, the danger signal identification unit 202 can identify the danger signal by analyzing the image information of the satellite image acquired at the same position at a predetermined time interval and the weather information at the time of shooting the satellite image.

For this, the danger signal identification unit 202 may include a pixel extraction unit 203 and a danger signal determination unit 204. The pixel extracting unit 203 extracts pixels of a satellite image having a change in a moving state of the atmospheric air in the satellite image and a meteorological phenomenon exceeding a predetermined disaster occurrence criterion on at least one satellite image acquired at a predetermined time interval .

The danger signal determination unit 204 can use the extracted pixels of the satellite image to determine a danger signal indicating a specific weather phenomenon causing a disaster / disaster. At this time, the danger signal determination unit 204 determines the risk point as a center point of the temporary area covering the pixels of the extracted satellite image, or decides the pixels whose change values are decreased among the pixels of the extracted satellite image A pixel having a large change width can be determined as a danger signal. In addition, the present invention also includes a range of natural and anthropogenic phenomena by determining and inputting a nearby danger signal by a user according to disaster / disaster site information. Here, a natural phenomenon includes a natural disaster due to an abnormal weather phenomenon, and an anthropogenic phenomenon may include an artificial disaster such as a fire caused by a human being. A more detailed configuration will be described with reference to FIGS. 4 and 5. FIG.

The disaster signal generation area determining unit 205 can determine the danger signal generation area for grasping the degree of disaster / disaster formation based on the danger signal as a center point. The disaster signal generation area determining unit 205 can determine a danger signal generation area having different radii depending on the type of disaster / disaster indicated by the danger signal with the danger signal as a center point.

The disaster risk anticipated area determining section 206 can determine the disaster risk anticipated area expected to cause damage due to a disaster / disaster after the shelter time in the determined danger signal generation area. In detail, the disaster risk anticipated area determining section 206 may include a wind speed extracting section 207, a center point predicting section 208, and a disaster risk occurrence area selecting section 209.

The wind speed extracting unit 207 can extract the wind speed in the coordinates of the satellite image where the danger signal is generated by using the wind field of the atmosphere formed on the ground surface. The wind field of the atmosphere can be information indicating the distribution state of the wind located in the spatial region of the wind, the velocity of the wind, and the like. The wind speed extracting unit 207 can extract the wind speed in the coordinates of the satellite image where the danger signal is generated by using the atmospheric wind field corresponding to the time when the satellite image in which the danger signal is generated is collected.

The center point predictor 208 can predict the center point of the disaster risk occurrence area expected to move after the possible evacuation time according to the wind speed extracted from the center point of the danger signal generation area. For example, if the wind speed extracted from the center point of the danger signal generation region is 10 km / h and the wind is disturbed by the south wind, It is anticipated that the area will move, and the center point of the disaster risk area for the expected area can be predicted.

The disaster risk occurrence area selection unit 209 can select a disaster risk occurrence area having an increased radius than the radius of the danger signal occurrence area. For example, the disaster risk area selection unit 209 can select a disaster risk occurrence area so as to have a radius twice as large as the radius of the danger signal area in consideration of spreading of the disaster according to time.

The primary alert provider 210 may provide a primary alert for a disaster / disaster to a user terminal located within the determined disaster hazard expected area. The primary alarm providing unit 210 performs a primary alarm for a disaster / disaster for a user terminal installed with a disaster application providing an alarm service for a disaster / disaster within the disaster risk expected area using the location information of the user terminal .

The first alarm providing unit 210 provides the first alarm to the user terminal installed with the disaster risk expected area built-in application in order to grasp the congestion or flow according to the inflow / outflow degree of the floating population existing in the disaster risk expected area . In addition, this primary alarm can be used as a criterion for selecting a target base station capable of alerting in advance whether a disaster / disaster is formed according to geographical conditions irrespective of administrative procedures between regions.

The target base station selection unit 211 can select the target base station using the floating population data and the pre-weakened area data in the disaster risk expected area. In other words, the target BS selection unit 211 notifies all the user terminals including the user terminal (the terminal where the disaster application is not yet installed) that has not received the PUSH-type primary alarm through the disaster application installed in the user terminal to disaster / The target base station can be selected to provide the second alarm about the second target. That is, the target BS selection unit 211 is provided to expand a target for providing a notification service related to a disaster / disaster, and can provide a secondary alert for a wider range within the disaster risk expected area.

To this end, the target base station selection unit 211 includes a floating population data extracting unit 212, a floating population weak area determining unit 213, a disaster / disaster vulnerable area determining unit 214 and a target base station determining unit 215 can do.

The floating population data extracting unit 212 can extract the floating population data representing the inflow or outflow of the floating population in the disaster risk expected area using the location information of the user terminal provided with the primary alarm. Here, the floating population may correspond to a user having a user terminal provided with the primary alarm.

The floating population vulnerable area determination unit 213 can determine the vulnerable area of the floating population in the disaster risk expected area by grasping the inflow or outflow degree. In other words, the floating population vulnerable area determination unit 213 determines the inflow or outflow level of the floating population in the disaster risk expected area according to the location information of the user terminal, and determines the area where the floating population stagnates, It is possible to determine the vulnerable areas of the floating population, such as the area where population flows. In addition, the vulnerable area of the floating population can be a region where human injury due to disaster caused by the movement of the floating population can occur.

The disaster / disaster vulnerable area determination unit 214 can determine a disaster / disaster vulnerable area in which a disaster / disaster vulnerable facility is located in the disaster risk expected area from the pre-vulnerable area data. The disaster / disaster vulnerable area determination unit 214 can determine a disaster / disaster vulnerable area in which a disaster / disaster vulnerable facility is installed by predicting an area having a high degree of danger in the event of a disaster / disaster.

The target base station determining unit 215 may determine a target base station for providing a secondary alert including the floating population vulnerable area and the disaster / disaster vulnerable area in the disaster risk expected area. At this time, the target base station determining unit 215 can further refine the range of the target base station by utilizing the previously acquired geographical information. In other words, when geographical information is utilized, the target base station determination unit 215 directly or indirectly determines a vulnerable area of the corresponding disaster risk prediction area . That is, since the target base station determining unit 215 can identify the location and space of the obsolete drainage, the obsolete building, the rush hour zone, and the vulnerable area from the geographical information, Can be further specified.

The secondary alarm providing unit 216 may provide a secondary alert for a disaster / disaster to a user terminal located in the coverage area of the selected target base station. The secondary alarm providing unit 216 may provide a secondary alarm for a user terminal where a disaster application is installed and a user terminal for which a disaster application is not installed in the coverage area of the target base station.

After providing the secondary alarm, the present invention can identify the danger signal from the satellite image and repeatedly perform the danger signal generation area. This can be done in order to provide additional alarms to users who are planning to enter into the influence of the disaster in the future by grasping the spread of the disaster in real time. The present invention can re-update the target base station due to the updated disaster risk expected area by repeatedly performing the risk signal identification and the determination of the danger signal generation area from the satellite image and updating the disaster risk expected area through the same.

Thereafter, the unmanned airplane control unit 217 controls the unmanned airplane to move to the weakened floating population area when the floating population in the vulnerable area of the floating population included in the disaster risk expected area is stalled after the secondary alarm is provided can do. And, the unmanned airplane can locate the target base station, and can grasp the situation of the floating population to the stationary floating population vulnerable area. In addition, the present invention can provide a PUSH-type alarm through a disaster application in real time in response to a rapidly changing situation of a floating population for a stagnant floating population vulnerable area recognized by an unmanned aerial vehicle.

In addition, after providing the secondary alarm, the neighbor BS selection unit 218 selects a neighbor BS located adjacent to the determined target BS when the floating population in the floating population vulnerable region included in the disaster risk expected region is stalled . In other words, the present invention can select a peripheral base station to extend the range of providing the secondary alarm when the flow of the flow population in the floating population vulnerable area is not smooth. That is, the target base station may provide an alert to a user terminal located within the coverage area in providing an alert for a disaster / disaster. This is because, in the case of a user terminal not belonging to the coverage area of the target base station, it may be located in a disaster risk expected area, but may not receive an alert for a disaster / disaster.

In consideration of this, the present invention extends the range of a base station capable of performing alarms in the form of a message, and can select neighboring base stations adjacent to the target base station initially selected.

The secondary alert support unit 219 can support a secondary alert for a disaster / disaster to a user terminal located in the coverage area of the selected peripheral base station. The secondary alert support unit 219 can support alerts for disaster / disaster to all user terminals located in the coverage area of the target base station and the coverage area of the neighbor base station.

The information providing unit 220 can receive disaster / disaster site information on the damage site that the user witnessed from the user terminal owned by the user who is provided with the alarm service related to the disaster / disaster. Specifically, the information providing unit 220 receives disaster / disaster site information from a user terminal of a user located in an area where a disaster or a disaster occurred, as well as a satellite image collected in real time through a satellite, It is possible to recognize more accurate situation and information about the site which is expected to lead to disaster.

For example, a user may deliver disaster / disaster site information to a disaster / disaster alert server on a victim site that has witnessed a flood, fire, storm, lightning, pest, spread, collapse,

To this end, the information providing unit 220 may provide an interface for receiving disaster / disaster site information through the disaster application installed in the user terminal. In detail, the disaster application can provide the location of the current user based on the location information of the user terminal, and can provide the information provided through the primary alarm and the secondary alarm in disaster / disaster alert. In addition, the disaster application may provide an interface for sharing disaster / disaster site information about the damage site that the user has witnessed. At this time, the user can search for the location where the disaster / disaster occurred through the disaster application, and provide disaster / disaster site information using the searched location as a danger signal in the information providing unit 220. In addition, the user can provide the information providing unit 220 with a photograph and a moving picture of the damage scene currently observed through the disaster application. In addition, the disaster application may receive additional disaster / disaster site information in various areas in connection with the social networking service (SNS), and may transmit the disaster / disaster site information to the information providing unit 220.

In addition, the present invention can identify a danger signal that appears as a specific weather phenomenon that causes disaster / disaster based on disaster / disaster site information transmitted from a user terminal according to a disaster application. Thereafter, the present invention can perform this operation using a risk signal identified based on disaster / disaster site information to provide a disaster / disaster alert to a user located in an area where the infrastructure for disaster / disaster is vulnerable. The present invention can additionally detect a danger signal to provide a disaster / disaster alert through active participation of the user.

As a result, the present invention can acquire more accurate information through bidirectional information sharing between the user and the system through the disaster / disaster site information collected from the user terminal as well as the satellite image 103 collected in real time from the satellite .

3 is a view for explaining an operation of identifying a danger signal by analyzing image information and weather information of a satellite image according to an exemplary embodiment.

Referring to FIG. 3, the disaster / alarm server can be fixed to the sky above the geostationary orbit from the satellite 301 to collect the satellite image 302 at a predetermined time interval with respect to a specific region of the ground surface.

The disaster / alert alarm server may compare each pixel constituting the at least one satellite image 302 to identify a danger signal that appears as a specific weather phenomenon causing a disaster / disaster. The danger signal is a signal indicating a specific weather phenomenon that causes a disaster / disaster among various information represented by the satellite image 302, and may be a point of occurrence related to a disaster. In other words, the danger signal indicates a point where a disaster is formed on the satellite image 302. In this case, the danger signal includes an 'x' value indicating the latitude of the satellite pixel, a 'y' And a 't' value indicating a time. Here, 't' value can have a value of '0', and it can be fixed to '0' according to the location where the disaster is formed.

In order to identify such a danger signal, the disaster / alarm server analyzes the image information of the satellite image 302 acquired at the same position at a predetermined time interval and the weather information 305 at the time of shooting the satellite image 302 can do. The image information of the satellite image 302 may include a moving image of the atmospheric state according to a change in pixel or brightness of the satellite image acquired at a predetermined time interval. The weather information 305 may include a weather phenomenon occurring in the atmosphere at the time when the satellite image 302 is photographed from the weather element constituting the atmosphere.

More specifically, the satellite image 302 is an image recorded according to the time flow for the surface of the earth, the surface of the ocean and the clouds floating in the high-rise of the atmosphere at a certain time interval, Other information may be included. In addition, the disaster / alert alarm server can grasp the moving state of the atmosphere through the change of the pixel or the brightness between the satellite images 302 recorded according to the time flow.

Here, the satellite images 303 and 304 are photographed at the same position from the artificial satellites at predetermined time intervals. The satellite image 303 is an image photographed at time t ₁ from the artificial satellite 301, And the satellite image 304 shows a cloud formed by moving from the point a to the point b in the image photographed at the time t ₂ from the satellite 301.

At this time, the pixels or brightness represented by the a and b points of the satellite images 303 and 304 may represent different values as clouds move according to the time flow photographed from the satellite 301. For example, a pixel at a point of the satellite image 303 has a color value of a white system related to the cloud, and a pixel at a point of the satellite image 304 has a color value of a green system related to the surface, Thus, even at the same point, different values can be displayed depending on whether or not the clouds are moving. As a result, the present invention can grasp the moving state of the atmosphere according to the degree of change between the image information of the satellite image.

In addition, the present invention may utilize meteorological information 303 that is separately computed or additionally available on the satellite. In other words, the present invention can be applied to various types of optical systems, such as the cloud and aerosol information (cloud temperature, cloud image, cloud optical thickness, cloud effective particle radius, aerosol optical thickness, etc.) visible channels can be used for the meteorological phenomenon that occurs in the atmosphere at the time the satellite image is captured.

As a result, the disaster / alert alarm server extracts pixels of a satellite image that shows a change in the movement state of the atmosphere in the satellite image and the meteorological phenomenon exceeding a predetermined disaster occurrence criterion, targeting at least one satellite image acquired at a predetermined time interval. can do. Then, the disaster / alarm server can use the extracted pixels of the satellite image to determine a danger signal indicating a specific weather phenomenon that causes a disaster / disaster.

4 is a view for explaining an operation of determining a danger signal indicating a specific weather phenomenon causing a disaster / disaster according to an embodiment.

The Disaster / Alert Alert Server is a system that monitors the movement of atmospheric air in a satellite image and the weather phenomenon over a disaster, A risk signal can be determined, which is the point at which it is assumed to be formed.

More specifically, referring to FIG. 4 (a), as described above with reference to FIG. 3, as the cloud moves, pixels may change between satellite images. Here, the point where the pixel change occurs can be classified into 1) a cloud not connected to a disaster and 2) a cloud connectable to a disaster. It can be distinguished based on a preset threshold value. At this time, the pixels of the satellite image showing a change in the moving state of the atmosphere and the weather phenomenon exceeding the preset disaster occurrence reference are clouds capable of being connected to a disaster, and include elements capable of causing additional disasters or disasters It can mean.

As a result, the disaster / alert alarm server is an element that can cause additional disaster or disaster, and can determine a danger signal that can cover all the pixels of the satellite image that show a change exceeding the disaster occurrence criterion. In other words, the disaster / alarm alert server is a temporary area that can cover all the pixels of the satellite image that show a change in the moving state of the atmosphere and the meteorological phenomenon exceeding the predetermined disaster occurrence criterion as shown in Fig. 4 (b) 402 can be set. Then, the disaster / alarm server can determine the center point 403 of the set temporary area 402 as a danger signal.

In one example, t satellite image of the _first point pixels (a, b, c, d, e, f, g) in cloud 401 is floating, and a satellite image of the t ₂ point cloud of a satellite image of the t ₁ point (F, g, h, i). Here, the pixel is a randomly set point for setting an invention. In the satellite image, it is assumed that the clouds exist in the pixel (f, g) at the time t _{1 and the} time t ₂ and the change occurs in the remaining pixels (a, b, c, d, e, h, .

Accordingly, the disaster / alarm server includes pixels displaying a change exceeding a disaster occurrence criterion in the satellite image according to the moving state of the atmosphere, and pixels of a satellite image showing a change exceeding a predetermined disaster occurrence criterion of the meteorological phenomenon The temporary area 402 can be set and the center point 403 of the set temporary area 402 can be determined as a danger signal.

5 is a diagram for explaining an operation of determining a danger signal indicating a specific weather phenomenon causing a disaster / disaster according to another embodiment.

The Disaster / Alert Alert Server is a system that monitors the movement of atmospheric air in a satellite image and the weather phenomenon over a disaster, A risk signal can be determined, which is the point at which it is assumed to be formed.

More specifically, referring to FIG. 5 (a), the present invention can display the change of pixels constituting a satellite image representing a climate state changing with time in a graph form. The graph can show the change value of the pixel according to the time flow based on each pixel. Here, the present invention can decrease, maintain, and increase the change value of the pixel according to the position of the cloud in the satellite image.

In other words, as shown in FIG. 4 (a), the cloud appearing in the satellite image at time t ₁ moves from the satellite image at time t ₂ , and the position of the pixel where the cloud exists in the satellite image at time t ₁ a pixel change may occur between satellite images at a time point t ₂ corresponding to the points a, b, c, d, and e. In addition, in the present invention, in order to grasp a danger signal related to a disaster / disaster due to the formation of a cloud, It is possible to distinguish the form.

For example, when a pixel of a satellite has a color other than white and white, it is defined that the change value of the pixel is decreased. On the other hand, when the pixel of the satellite is white with a color other than white, Value can be defined as increased. In addition, the present invention can be defined that the color of a pixel is maintained when a difference in lightness or shade of white occurs due to a difference in the thickness of a cloud or the like. Here, the colors represented by the earth surface may mean green, brown, and blue representing land, sea, and the like. Based on this definition, the present invention can graphically show the amount of change of a pixel that changes with time.

Thereafter, the disaster / alarm server can determine a pixel having a reduced change width as a danger signal for pixels whose change values are decreased among the pixels of the extracted satellite image. In other words, the occurrence of a change in pixel may mean that the cloud can be connected to a disaster, as mentioned above, and includes an element capable of causing additional disaster or disaster. In addition, the fact that the change value of the pixel is large indicates that the physical form of the cloud changes urgently or rapidly. Accordingly, the disaster / alarm server can determine, as the danger signal 501, one pixel whose change value changes abruptly among the pixels whose change value decreases.

6 is a view for explaining an operation of providing a primary alarm for a user terminal installed with a disaster application according to an embodiment.

6, the disaster / alarm server 601 can determine the danger signal generation area 602 in which the coordinates (or pixels) indicated by the determined risk signal are the center points 603. Here, the disaster / alert server 601 can determine the danger signal generation area 602 based on the following two methods.

(1) Method using a change value of pixels

The disaster / alert server 601 may include a range capable of covering the pixels of the satellite image that exhibits a change exceeding a disaster occurrence reference set in advance for the pixels in which the change occurs between the pixels of the satellite images, 602). In other words, since there are a plurality of pixels of a satellite image that show a change exceeding a preset disaster occurrence criterion in accordance with a change of a cloud, the present invention provides a risk that a pixel change due to a cloud change occurs, The signal generation region 602 can be determined.

Here, the present invention includes the possibility of being extended to a signal indicating a disaster / disaster according to time, though it has not been determined as a danger signal among all the pixels in which a pixel change has occurred, The occurrence area 602 can be determined.

(2) How to use the type of disaster

The present invention proposes a method for identifying danger signals that cause rapid, rapid and rapid disaster / disaster such as storms, forest fires, and fine dusts over time. At this time, the disaster / disaster represented by the danger signal can be diffused to different radii depending on the kind. Accordingly, the present invention can determine a danger signal generation area 602 having a different radius depending on the type of a disaster / disaster indicated by the danger signal, with the identified danger signal as a center point.

Thereafter, the disaster / alert server 601 can determine the disaster risk expected area 605, which is expected to cause damage due to a disaster / disaster after the evacuatable time in the danger signal generation area 602. The disaster / alert server 601 can determine the disaster risk expected area 605 at the time when the scale of the disaster / disaster has spread to such a degree that the damage due to the danger signal occurs. Then, the disaster / alert server 601 can minimize the damage caused by the disaster / disaster by taking into account the time available for evacuation, which is the securing time for the actual evacuation action.

For this purpose, the disaster / alarm server 601 can extract the wind speed in the coordinates 603 of the satellite image where the danger signal is generated by using the wind field of the atmosphere formed on the ground surface. For example, the present invention can calculate the wind speed U (km / h) at the coordinates (603: x, y, t = 0) of the satellite image using the numerical prediction model results according to the wind field of the atmosphere.

Then, the disaster / alert server 601 receives the disaster risk occurrence area 602, which is expected to cause a specific weather phenomenon that causes a disaster / disaster according to the wind speed after the retractable time from the center point 603 of the danger signal generation area 602, The center point 604 of the center point 605 can be predicted. The disaster / alert server 601 can select a disaster risk occurrence area 605 having an increased radius than the radius of the danger signal generation area 602. [ This is because the present invention proposes a method for grasping a danger signal which is widely spread in a short time, and it is predicted that after the shelter time, it will spread more than the disaster scale measured from the risk signal initially identified.

For example, the disaster / alert server 601 may determine the disaster risk occurrence area 605 according to the location of the specific weather phenomenon that is estimated to be moved after two hours to the retractable time. At this time, the disaster / alert server 601 moves the center point 603 of the dangerous signal generating area 602, that is, the center 603 of the circle 602, by the calculated wind speed U / h, The radius (R ₂ ) of the doubled-up circle 605 can be determined. Here, the reason for increasing the radius R ₂ of the circle 605 may reflect the rapid spread / expansion of the disaster element to the surroundings. If the wind speed according to the result of the numerical prediction model can not be calculated, the disaster / alarm server 601 can calculate the radius (R ₂ ) of the circle 605 doubled to 20 km without considering the wind speed You can decide.

The disaster / alert server 601 may provide a first alert for a disaster / disaster to the user terminal 606 located within the determined disaster risk expected area. More specifically, within the determined disaster risk expected area, there may be a user terminal 606 in which a disaster application providing an alarm service for a disaster / disaster is installed and a user terminal 607 in which a disaster application is installed. Here, the user terminal 607 to which the disaster application is not installed may be a terminal equipped with a basic application such as a telephone or a character, or a terminal using a 2G or 3G communication network.

The disaster / alert server 601 is a user terminal 606 installed with a disaster application for providing an alarm service related to a disaster / disaster in the disaster risk expected area using a global positioning system (GPS) ) To provide a first alert for a disaster / disaster. This means that when a user initially installs a disaster application, he or she must be provided with the consent to receive personal information (gender / age / residence) and push notifications for disaster / disaster, It can be provided in advance in advance.

In addition, the personal information of the individual can be used as a basic data for grasping the characteristics of the floating population according to the occurrence of a disaster / disaster, and the user terminal 606 provided with the first alarm can receive the floating population data And can be used as a reference for selecting a target base station.

7 is a view for explaining an operation of providing a secondary alert to a user terminal using a target base station according to an embodiment.

Referring to FIG. 7, the disaster / alert server 701 can select the target base station using the floating population data and the pre-weakened area data in the disaster risk expected area 709. More specifically, the disaster / alarm server 701 can extract the floating population data using the location information of the user terminal provided with the primary alarm. Here, the floating population data may mean information indicating the degree of inflow or outflow in the disaster risk expected area 709. [ In other words, the floating population data can indicate the degree of inflow / outflow of the floating population flowing into or out of the disaster risk expected area 709 for the user terminal receiving the primary alarm, and can not flow out from the expected area 709 It can be shown whether it is stagnant.

At this time, the outflow of the floating population into the disaster risk prediction area 709 can be regarded as an evacuation action that escapes from the dangerous area due to the disaster / disaster because it is out of the disaster risk expected area. On the other hand, the fact that the floating population flows into the disaster risk prediction area 709 or is stagnant can be regarded as the opposite action of the evacuation action by entering the disaster risk prediction area 709. Therefore, the present invention can more accurately grasp the inflow and stagnation degree of the floating population, and can perform additional work such as structural work.

Then, the disaster / alert server 701 can determine the floating population vulnerable area in the disaster risk expected area 709 by grasping the inflow, outflow, or stagnation degree. Here, the floating population weak area 703 can determine the floating population weakened area 703 based on the following information on the flow of the floating population.

(1) a floating population located in an area where the location information of the user terminal provided with the primary alarm is found to be concentrated or stagnated

(2) a geographically dangerous location among the location information of the user terminal receiving the first alarm, or a floating population located in an area where the floating population is found to be isolated

(3) An influx population moving into the disaster risk expected area

(4) Outflow population deviating from disaster risk expected area

In other words, the disaster / alert alarm server 701 can identify the area or dispersed area of the user (floating population) in the disaster risk expected area 709 from the floating population data, It is possible to grasp the inflow information and the degree of outflow.

More specifically, assuming that the location information of the floating population in the disaster risk expected area 709 is collected in units of 10 seconds, the disaster / alarm server 701 calculates the speed at the time of collecting the location information of the floating population The moving direction can be grasped. The disaster / alert server 701 can store and manage the detected speed and direction in the database.

Then, the disaster / disaster alarm server 701 can judge whether the floating population is stagnant or not through the speed. In other words, when the speed of the floating population is low, the disaster / disaster warning server 701 can grasp the floating population as stagnated state. In addition, when the speed of the floating population is high, the disaster / alarm server 701 can recognize that the floating population is not stagnated. In addition, the disaster / alarm server 701 can identify the inflow or outflow state of the floating population from the disaster risk expected area through the movement direction. In other words, the disaster / alert alarm server 701 is a floating population that flows into the disaster risk expected area when the direction of flow of the floating population is toward a disaster risk expected area, and in the opposite case, it can be determined as an outflow population.

Accordingly, the disaster / alarm server 701 can determine whether the user is stagnant and inflow / outflow in the speed and direction of the floating population more accurately.

In addition, the disaster / alert server 701 can determine the congestion or isolation state depending on the density of the floating population. In other words, the disaster / alarm server 701 can detect that the floating population is concentrated in the dense region when the population flowing in the dense region is large, and the floating population is stagnated from the dense region It can be understood that the state is. The disaster / alarm server 701 can recognize that the flow of the floating population is disconnected to the dispersed region when the population flowing out from the dispersed region is small, Can be identified as being in an isolated state.

The disaster / alert server 701 can recognize the moving state of the floating population according to the degree of inflow or outflow of the floating population in the disaster risk expected area 709, Can be determined.

In addition, the disaster / alert server 701 may determine a disaster / disaster vulnerable area 704 in which a disaster / disaster vulnerable facility is located in the disaster risk expected area 709 from the prior vulnerable area data. Here, the disaster / disaster vulnerable area 704 refers to a predetermined area (area) in which an area having a high risk level in the event of a disaster / disaster is identified in advance. For example, disaster such as a chemical factory, nuclear power plant, / Areas with vulnerable facilities may be designated as disaster / disaster vulnerable areas (704).

In addition, the disaster / alarm server 701 can secure the old wastewater / old buildings / stormy areas / geographical information classified as vulnerable zones in advance in order to provide information on disasters / disasters. Then, the disaster / alert server 701 can determine the disaster / disaster vulnerable area 704 more precisely by grasping not only the disaster / disaster vulnerable facilities but also the geographical information.

The disaster / alert server 701 may determine the target base station 702 to provide a secondary alert, including a floating population vulnerable region and a disaster / disaster vulnerable region in the disaster risk expected region 709. The disaster / alert alarm server 701 selects a base station 702 as a base station that commonly includes disaster / disaster vulnerable areas for a plurality of base stations adjacent to the floating population weak area 703 according to the flow of the floating population . In other words, the disaster / alert server 701 preferentially determines the base station located in the area that satisfies both the floating population weak area 703 and the disaster / disaster vulnerable area 704 as the target base station 702 .

When the target BS 702 is determined, the disaster / alert server 701 transmits a time difference alarm (SMS) to the user terminals 707 and 708 via a short message service (SMS) using a GIS (Geographic Information System) t < 10 min).

The disaster / alert server 701 is configured to perform a second-order (second-order) process on the user terminal 707 in which the disaster application is installed and the user terminal 708 in which the disaster application is not installed in the coverage area 705 of the target base station 702 Alarms can be provided. Here, the transmission range of the character service for the secondary alarm may be based on a radius of 1 km as the coverage area 705 of the alert base station 702.

The secondary alert may include alert information provided to the user terminal via the primary alert and prediction information about the disaster / disaster. The prediction information may include the type of the disaster / disaster indicated by the hazard signal, the expected evacuation time due to the disaster / , In the event of a disaster / disaster, or in a hazardous location. In addition, the prediction information may include additional information depending on the circumstances of the country providing information on the disaster / disaster. For example, the present invention can provide photographs / pictures closely related to a danger signal together with details of the type of disaster signal / expected evacuation time / place of danger, taking into account the illiteracy rate of a developing country.

At this time, in the case of the user terminal 708 in which the disaster application is not installed, the present invention can essentially perform the necessary agreement on subscription to the location information providing service through the voice-based subscription procedure. In addition, according to the present invention, in the case of a user terminal installed with a disaster application, not only a text service but also a real-time PUSH notification through an application are also provided, so that a user of a user terminal installed with a disaster application can receive a primary alarm And a second alert through the target base station 702. As a result, as the communication network evolves with respect to the mobile phone, the present invention reflects the current communication network system for 2G, 3G, and LTE, and can build a hybrid alarm system using a hybrid application using SMS and application . Also, the alarm system of the hybrid concept has an advantage that it is possible to continuously alarm through the GPS even when the target base station 702 is damaged due to a disaster / disaster, and provides information on the alert area to the disaster and disaster related departments, It can be used variously as data.

The disaster / alert server 701 may provide a second alert when the floating population in the floating population weak area 703 included in the disaster risk expected area 709 is stalled, 703 to move the UAV. The disaster / alert alarm server 701 also selects a peripheral base station 706 located adjacent to the determined target base station when the floating population in the floating population weak area 703 included in the disaster risk expected area 709 is stalled can do. Thereafter, the disaster / alert server 101 may support a second alert for a disaster / disaster to a user terminal located in the coverage area of the selected peripheral base station 706. [

Here, the disaster / alert alarm server 701 analyzes data on the floating population through the floating population data accumulated in real time and analyzes the inflow / outflow / stagnation state on the floating population, thereby generating an alarm related to the disaster / And the frequency / intensity of alarms, which can be used to convey useful information about disasters / disasters to various people.

8 is a flowchart illustrating a disaster / alarm method according to an embodiment of the present invention.

The present invention can be carried out by dividing the operation into three steps in order to provide alarms on disaster / disaster. Specifically, step 1 may correspond to steps 801-803 for predicting the satellite signal and the danger signal. Step 2 may correspond to steps 804-806 for providing a real-time alarm. Finally, step 3 is to track and manage the disaster / disaster, which may correspond to step 807-811.

In step 801, the disaster / alert alarm server may identify a danger signal that is expected to cause a disaster / disaster from the satellite image. In other words, the disaster / alarm server can identify the danger signal by analyzing the image information of the satellite image acquired at the same position at a predetermined time interval and the weather information at the time of shooting the satellite image. To this end, the disaster / alarm server measures at least one satellite image acquired at a predetermined time interval, and determines the moving state of the atmospheric air in the satellite image and the pixels of the satellite image showing a change exceeding the pre- Can be extracted. Thereafter, the disaster / alarm server can use the pixels of the extracted satellite image to determine a danger signal indicating a specific weather phenomenon causing a disaster / disaster.

In step 802, the disaster / alert alarm server can determine a danger signal generation area for determining the degree of disaster / disaster formation based on the identified danger signal as a center point. The disaster / alert alarm server can determine the danger signal generation area having different radii according to the type of the disaster / disaster indicated by the danger signal with the identified danger signal as a center point.

In step 803, the disaster / alarm server can determine a disaster risk expected area in which the damage caused by the disaster / disaster is expected to occur after the time available for evacuation in the determined danger signal generation area. The disaster / alert alarm server can extract the wind speed in the coordinates of the satellite image where the danger signal is generated by using the atmospheric wind field formed on the surface of the earth. The disaster / alarming alarm server predicts the center point of the disaster risk occurrence area expected to move after the allowable time of evacuation according to the extracted wind speed at the central point of the danger signal generation area, A risk-free area having an increased radius than the radius of the accident hazard area can be selected.

At step 804, the disaster / alert alarm server may provide the user terminal located within the determined disaster hazard expected area with a primary alert for a disaster / disaster. The disaster / alert alarm server provides a first alert for a disaster / disaster to a user terminal equipped with a disaster application providing an alarm service about the disaster / disaster in the disaster risk expected area using the location information of the user terminal .

In step 805, the disaster / alarm server can select the target base station using the floating population data and the pre-weakened area data in the disaster risk expected area. In detail, the disaster / alarm server uses the location information of the user terminal provided with the first alarm to extract the floating population data indicating the degree of inflow or outflow in the disaster risk expected area, and determines the inflow or outflow degree from the floating population data , It is possible to determine the vulnerable area of the floating population in the disaster risk expected area. The Disaster / Alert Alert Server can then determine from the pre-vulnerable area data disaster / disaster vulnerable areas where disaster / disaster vulnerable facilities are located in the disaster hazard expected area. The disaster / alert alarm server may determine the target base station for providing the second alert including the above-mentioned floating population vulnerable area and the disaster / disaster vulnerable area in the disaster risk expected area.

In step 806, the disaster / alert alarm server may provide a second alert for a disaster / disaster to a user terminal located in the coverage area of the selected target base station. The disaster / alert alarm server can provide a second alert for the user terminal where the disaster application is installed and the user terminal for which the disaster application is not installed, within the coverage area of the target base station.

In step 807, the disaster / alert alarm server can recognize the flow of the floating population as to whether the floating population has a static section, an isolated section, a section in which a floating population flows, and the like. More specifically, the Disaster / Alert Alert Server can perform the first step of predicting the satellite signal and the danger signal again to identify the rapidly moving danger signal in real time and to update the disaster risk expected area accordingly have. In this case, the present invention can omit the operation of the center point and the radius enlargement of the circle based on the determination of the satellite image, omitting the numerical model prediction in order to increase the speed from 50 minutes after the SMS time difference alarm. The disaster / alarm alert server can continuously update the target base station while sequentially proceeding to the second step of providing real-time alarm. At this time, an additional alarm operation can be omitted.

Thereafter, the disaster / alert alarm server can determine whether the following effects, that is, the extent of the damage to the disaster / disaster, are minimized centering on the updated target base station.

(1) Relieving and Eliminating Population Stagnation in Flooding Population

(2) Reduction and avoidance of dangerous geographically located population

(3) Decrease in the population influxing the expected dangerous area

If the flow of the floating population is not smooth (YES), the disaster / alarm server in step 808 can select a neighbor base station located adjacent to the determined target base station. Then, in step 809, the disaster / alarm server can support a second alert for a disaster / disaster to the user terminal located in the coverage area of the set peripheral base station.

If the flow of the above-mentioned floating population is small (YES), the disaster / alarm server can control the unmanned airplane to move to the stagnant floating population vulnerable area in step 810. Also, the unmanned airplane can grasp the situation of the floating population with respect to the vulnerable area of the floating population where the target base station is located, and continuously perform the real-time alarm through the disaster application of the user terminal in a rapidly changing situation.

After the flow of the floating population is smooth (No) and after performing the steps 808-810, the disaster / alert alarm server at step 811 determines whether the user of the user terminal To the emergency relief team so that more efficient emergency relief or emergency relief activities can be carried out. In addition, the disaster / alert alarm server can analyze the difference between the floating population before the disaster and the floating population after the disaster, so that the city recovery and resilience can be grasped by the time lapse.

As a result, the present invention is the first disaster / disaster alarm system using satellite output and floating population tracking technology. It uses advanced high-resolution geostationary satellite data, It is possible to minimize damage to urban disaster / disaster vulnerable areas and to manage efficiently, mainly in Southeast Asia.

In addition, since it is determined that short-term prediction within 1-2 hours is possible by only satellite image analysis without relying on past numerical forecasts, it is necessary to estimate a cloud obtained from a satellite Analysis using the output is very effective.

Meanwhile, the method according to the present invention may be embodied as a program that can be executed by a computer, and may be embodied as various recording media such as a magnetic storage medium, an optical reading medium, and a digital storage medium.

Implementations of the various techniques described herein may be implemented in digital electronic circuitry, or in computer hardware, firmware, software, or combinations thereof. Implementations may be implemented in a computer program product, such as an information carrier, e.g., a machine readable storage device, such as a computer readable storage medium, for example, for processing by a data processing apparatus, Apparatus (computer readable medium) or as a computer program tangibly embodied in a propagation signal. A computer program, such as the computer program (s) described above, may be written in any form of programming language, including compiled or interpreted languages, and may be stored as a stand-alone program or in a module, component, subroutine, As other units suitable for use in the present invention. A computer program may be deployed to be processed on one computer or multiple computers at one site or distributed across multiple sites and interconnected by a communications network.

Processors suitable for processing a computer program include, by way of example, both general purpose and special purpose microprocessors, and any one or more processors of any kind of digital computer. Generally, a processor will receive instructions and data from a read-only memory or a random access memory or both. The elements of a computer may include at least one processor for executing instructions and one or more memory devices for storing instructions and data. Generally, a computer may include one or more mass storage devices for storing data, such as magnetic, magneto-optical disks, or optical disks, or may receive data from them, transmit data to them, . &Lt; / RTI &gt; Information carriers suitable for embodying computer program instructions and data include, for example, semiconductor memory devices, for example, magnetic media such as hard disks, floppy disks and magnetic tape, compact disk read only memory A magneto-optical medium such as a floppy disk, an optical disk such as a DVD (Digital Video Disk), a ROM (Read Only Memory), a RAM , Random Access Memory), a flash memory, an EPROM (Erasable Programmable ROM), an EEPROM (Electrically Erasable Programmable ROM), and the like. The processor and memory may be supplemented or included by special purpose logic circuitry.

In addition, the computer-readable medium can be any available media that can be accessed by a computer, and can include both computer storage media and transmission media.

While the specification contains a number of specific implementation details, they are not to be construed as limiting the scope of any invention or claim, but rather as a description of features that may be specific to certain embodiments of the invention Should be understood. Certain features described herein in the context of separate embodiments may be implemented in combination in a single embodiment. Conversely, various features described in the context of a single embodiment may also be implemented in multiple embodiments, either individually or in any suitable subcombination. Further, although the features may operate in a certain combination and may be initially described as so claimed, one or more features from the claimed combination may be excluded from the combination in some cases, Or a variant of a subcombination.

Likewise, although the operations are depicted in the drawings in a certain order, it should be understood that such operations must be performed in a certain order or in a sequential order as shown in order to obtain the desired results, or that all illustrated operations should be performed. In certain cases, multitasking and parallel processing may be advantageous. Also, the separation of the various device components of the above-described embodiments should not be understood as requiring such separation in all embodiments, and the described program components and devices will generally be integrated together into a single software product or packaged into multiple software products It should be understood.

It should be noted that the embodiments of the present invention disclosed in the present specification and drawings are only illustrative of specific examples for the purpose of understanding and are not intended to limit the scope of the present invention. It will be apparent to those skilled in the art that other modifications based on the technical idea of the present invention are possible in addition to the embodiments disclosed herein.

101: Disaster / Disaster Alarm Server
102: Satellite
103: satellite image
104: ground surface

Claims (17)

Identifying a hazard signal from a satellite image that is expected to cause a disaster / disaster;
Determining a danger signal generation area for identifying a degree of disaster / disaster based on the identified danger signal as a center point;
Determining a disaster risk expected area expected to cause damage due to a disaster / disaster after the evacuable time in the determined danger signal generation area;
Providing a first alert for a disaster / disaster to a user terminal located within the determined disaster risk expected area;
Selecting a target base station using the floating population data and the weak area data in the disaster risk expected area; And
Providing a second alert for a disaster / disaster to a user terminal located in the selected coverage area of the target base station
Disaster / Disaster Warning Method. The method according to claim 1,
Wherein identifying the risk signal comprises:
A method of disaster / alert an aircraft, the method comprising the steps of: acquiring image information of the satellite image acquired at the same position at a predetermined time interval; and analyzing weather information at the time when the satellite image is captured. 3. The method of claim 2,
The image information of the satellite image may be,
And a moving state of the atmospheric state according to a change in brightness or a pixel of the satellite image acquired at the predetermined time interval,
The weather information includes:
And a meteorological phenomenon occurring in an atmosphere at a time point when the satellite image is photographed from a meteorological element constituting the atmosphere. The method of claim 3,
Wherein identifying the risk signal comprises:
Extracting pixels of a satellite image having at least one satellite image acquired at the predetermined time interval, the satellite image having a moving state of the atmospheric air in the satellite image and a change in the meteorological phenomenon exceeding a predetermined disaster occurrence criterion; And
Determining a danger signal indicating a specific weather phenomenon causing a disaster / disaster using pixels of the extracted satellite image, or determining a danger signal from a disaster / disaster site information on a damage scene witnessed by the user
Disaster / Disaster Warning Method. 5. The method of claim 4,
Wherein the determining the risk signal comprises:
And determining a center point of a temporary area covering pixels of the extracted satellite image as the danger signal. 5. The method of claim 4,
Wherein the determining the risk signal comprises:
And determining a pixel having a reduced change width as a danger signal for pixels whose change values are decreased among pixels of the extracted satellite image. The method according to claim 1,
Wherein the step of determining the danger signal generation region comprises:
And determining a danger signal generation region having a different radius according to a type of a disaster / disaster indicated by the danger signal with the identified danger signal as a center point. The method according to claim 1,
Wherein the step of determining the disaster risk expected area comprises:
Extracting a wind speed in coordinates of a satellite image in which a danger signal is generated by using an atmospheric wind field formed on an earth surface;
Estimating a center point of a disaster risk occurrence area expected to move after a possible time of evacuation according to the extracted wind speed at a center point of the danger signal generation area; And
Selecting a disaster risk occurrence area having a radius larger than a radius of the danger signal generation area
Disaster / Disaster Warning Method. The method according to claim 1,
The providing of the primary alert for the disaster /
A disaster / disaster warning method for providing a first alarm for a disaster / disaster to a user terminal equipped with a disaster application providing an alarm service about a disaster / disaster in the disaster risk expected area using the location information of the user terminal . The method according to claim 1,
Wherein the step of selecting the target base station comprises:
Extracting floating population data indicating an inflow, outflow, or stagnation degree in the disaster risk expected area using the location information of the user terminal provided with the primary alarm;
Determining the inflow or outflow extent and determining a vulnerable area in the disaster risk expected area;
Determining a disaster / disaster vulnerable area in which a disaster / disaster vulnerable facility in the disaster risk expected area is installed; And
Determining a target base station for providing a secondary alert including the floating population vulnerable zone and the disaster / disaster vulnerable zone in the disaster risk expected zone
Disaster / Disaster Warning Method. The method according to claim 1,
The step of providing the secondary alarm for the disaster /
Wherein the second alarm is provided to a user terminal in which the disaster application is installed and a user terminal in which the disaster application is not installed in the coverage area of the target base station. 12. The method of claim 11,
The step of providing the secondary alarm for the disaster /
When providing the secondary alarm, in the case of a user terminal equipped with a disaster application for distribution of transmission load, a secondary alarm is transmitted as a push type,
And a second alarm is transmitted as a message type in the case of a user terminal in which the disaster application is not installed. The method according to claim 1,
The secondary alarm,
Notification information provided to the user terminal through the primary alert, and prediction information on a disaster / disaster,
Wherein the prediction information comprises:
A disaster / disaster warning method comprising at least one of a type of a disaster / disaster indicated by the danger signal, an expected disaster time due to a disaster / disaster, a disaster / disaster occurrence, and a dangerous place. The method according to claim 1,
After providing the secondary alarm,
When the floating population in the vulnerable area of the floating population included in the disaster risk expected area is stalled, controlling the movement of the unmanned airplane to the stagnant floating population vulnerable zone
/ RTI &gt; further comprising: &lt; RTI ID = 0.0 &gt; The method according to claim 1,
After providing the secondary alarm,
Selecting a peripheral base station located adjacent to the determined target base station when the floating population in the floating population vulnerable area included in the disaster risk expected area is stalled; And
Supporting a second alert for a disaster / disaster to a user terminal located in a coverage area of the selected peripheral base station
/ RTI &gt; further comprising: &lt; RTI ID = 0.0 &gt; The method according to claim 1,
Further comprising the step of receiving disaster / disaster site information about the damage site that the user witnessed from the user terminal owned by the user who is provided with the alarm service about the disaster / disaster. A danger signal identification unit for identifying a danger signal expected to cause a disaster / disaster from a satellite image;
A danger signal generation region determination unit for determining a risk signal generation region for determining a degree of disaster / disaster formation based on the identified danger signal as a center point;
A disaster risk predicted area determining unit for determining a disaster risk expected area expected to cause damage due to a disaster / disaster after the evacuable time in the determined danger signal generation area;
A first alarm providing unit for providing a first alarm for a disaster / disaster to a user terminal located in the determined disaster risk expected area;
A target BS selection unit for selecting a target BS using the floating population data and the weak area data in the disaster risk expected area; And
A second alarm providing unit for providing a second alarm for a disaster / disaster to a user terminal located in a coverage area of the selected target base station,
Disaster / Alert Alarm Server.

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