JP4551116B2 - Earthquake warning system - Google Patents

Description

  The present invention relates to an earthquake warning system.

Conventionally, a technique for issuing an earthquake warning before the arrival of a main motion (S wave) by observing various characteristics of initial fine motion (P wave) is disclosed in, for example, Patent Document 1 below. The earthquake alarm system described in this publication has a database in which a telephone number of a user's mobile phone and area information of a base station in which the mobile phone is located are associated with each other and stored. And when an earthquake warning system detects a P wave, while specifying the area (damage prediction area) where earthquake damage is predicted, it detects a base station in the specified area. And the telephone number which is the contact information of the mobile telephone which exists in the communication area of the base station is detected from the database. Thereafter, a call is made to the detected telephone number to form a communication line between the earthquake alarm system and the mobile phone, and earthquake information is transmitted to the user of the mobile phone.
JP 2001-307265 A

  However, the above-described conventional earthquake warning system has the following problems. In other words, when the number of mobile phones to be alarmed increases, such as when the magnitude of the earthquake is large or the location of the epicenter is close to a large city, the time required for detecting the mobile phone number (contact information) from the database increases. As a result, there was a problem that transmission of earthquake information was delayed. That is, in the conventional earthquake warning system, it is difficult to transmit earthquake information in a short time, and a more immediate earthquake warning system is desired.

  Therefore, the present invention has been made to solve the above-described problems, and an object thereof is to provide an earthquake alarm system that can speed up alarm transmission.

  An earthquake warning system according to the present invention includes an earthquake warning device, a plurality of base stations connected to be able to communicate with the earthquake warning device, and a storage device in which base station identification information of each base station is stored. The apparatus includes: an input unit that receives input information including at least one of an earthquake location and magnitude and an earthquake predicted area; and a predetermined base station identification from the storage unit based on the input information received by the input unit A base station selection means for extracting information, and a transmission means for transmitting a base station warning instruction to the base station specified by the base station identification information extracted by the base station selection means. Receiving means for receiving the base station warning instruction transmitted from the earthquake warning device, and when the receiving means receives the base station warning instruction, the mobile terminal existing in its own communication area is alerted to the mobile terminal. And having a warning distribution means for distributing the terminal alarm instruction to execute the.

  In this earthquake warning system, based on the input information received by the input means, the base station selection means extracts predetermined base station identification information from the storage device. This input information includes at least one of the epicenter and magnitude of the earthquake and the predicted damage area. And a transmission means transmits a base station warning instruction | indication with respect to the base station specified by the extracted base station identification information. The base station that has received the base station alarm instruction by the receiving means distributes the terminal alarm instruction to the mobile terminals existing in its own communication area by the alarm distribution means. As described above, in the earthquake alarm system according to the present invention, the telephone number (contact information) of the mobile terminal located in the base station is detected during a series of steps until the mobile terminal executes alarm processing. Since the process is not included, the alarm can be transmitted more quickly than the conventional earthquake alarm system.

  Further, when the epicenter location and the earthquake scale are included in the input information, the storage device stores the base station identification information and the location information of the base station specified by the base station identification information in a state of being associated with each other, The base station selection means estimates the disaster prediction area based on the epicenter location and the earthquake scale included in the input information, and extracts the base station identification information of the base station located in the disaster prediction area from the storage device Is preferred. In this case, since it is not necessary to specify the disaster prediction area in advance, the earthquake warning system can perform flexible alarm transmission regardless of the area that is the disaster prediction area.

  In addition, if the input information includes the location of the epicenter and the magnitude of the earthquake, the base station identification information is stored in the storage device in a grouped state for each predicted disaster area estimated from the location of the epicenter and the magnitude of the earthquake. The station selection means determines a predetermined group of base station identification information based on the epicenter position and the magnitude of the earthquake included in the input information, and extracts the base station identification information included in the determined group from the storage device. Is preferred. In this case, the base station identification information is grouped in advance for each predicted disaster area estimated from the location of the earthquake and the magnitude of the earthquake, so that the base station identification information of a plurality of base stations in the predicted disaster area can be quickly obtained. Since it can be extracted, the earthquake warning system can transmit warnings more quickly.

  Further, when the predicted disaster area is included in the input information, the storage device stores the base station identification information and the position information of the base station specified by the base station identification information in a state of being associated with each other, and the base station It is preferable that the selection unit extracts the base station identification information of the base station located in the predicted disaster area included in the input information from the storage device. In this case, it is not necessary for the base station selection means to estimate the disaster-predicted area, and the predetermined base station identification information can be extracted in a short time, so that the earthquake alarm system can perform more rapid alarm transmission. .

  In addition, when the input information includes a plurality of predicted damage areas and each predicted damage area is associated with the seismic intensity, the storage device stores the base station identification information and the base station identified by the base station identification information. The position information is stored in a state of being associated with each other, and the base station selection means extracts a disaster prediction area having a predetermined seismic intensity or more from a plurality of disaster prediction areas included in the input information, and each extracted disaster prediction area It is preferable to extract the base station identification information of the located base station from the storage device. In this case, the versatility of this earthquake warning system is improved by appropriately changing the predetermined seismic intensity used by the base station selection means for selecting the predicted disaster area.

  Each base station further includes power control means for delivering a forced incoming call instruction for forcibly turning on the power of the mobile terminal to the mobile terminal before the alarm delivery means delivers the terminal warning instruction to the mobile terminal. It is preferable. In this case, a terminal alarm instruction can be distributed even to a mobile terminal whose power is off.

  Further, the transmission means of the earthquake alarm device transmits a base station alarm instruction having earthquake information including at least one of the epicenter position and the earthquake scale received by the input means to the base station, and the alarm distribution means of the base station is a reception means When receiving a base station warning instruction having earthquake information, it is preferable to distribute the earthquake information together with the terminal warning instruction to the mobile terminals existing in its own communication area. In this case, the user of the mobile terminal is not only notified of the occurrence of the earthquake from the mobile terminal, but is also notified of detailed information about the earthquake from the mobile terminal. it can.

  ADVANTAGE OF THE INVENTION According to this invention, the earthquake warning system by which speeding-up of warning transmission was achieved is provided.

  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments that are considered to be the best for implementing an earthquake warning system according to the present invention will be described in detail with reference to the accompanying drawings. In addition, the same code | symbol is attached | subjected about the same or equivalent element, and the description is abbreviate | omitted when description overlaps.

  As shown in FIG. 1, the earthquake warning system 1 includes an earthquake warning device 10 and a plurality of base stations 20 (20A, 20B, 20C) connected to the earthquake warning device 10 via a mobile phone network NW. ing.

  In addition, an earthquake detection device 30 is connected to the earthquake warning device 10 of the earthquake warning system 1. The earthquake detection device 30 detects a P wave of an earthquake, and estimates the location of the earthquake (so-called epicenter) and magnitude (the magnitude of the earthquake) from various characteristics of the P wave. And the earthquake detection apparatus 30 sends the input information including the said epicenter position and magnitude estimated based on the P wave to the earthquake warning apparatus 10 of the earthquake warning system 1 at the timing of detecting the P wave. Upon receiving this input information from the earthquake detection device 30, the earthquake warning system 1 causes the mobile terminal 40 (40A, 40B, 40C) such as a mobile phone to execute an alarm process.

  First, the earthquake alarm device 10 among the components of the earthquake alarm system 1 will be described.

  The earthquake alarm device 10 includes an information processing device such as a CPU, a storage device 12 such as a memory and a hard disk, a communication device, and the like as physical components. The earthquake alarm device 10 includes an input unit (input unit) 14, a base station selection unit (base station selection unit) 16, and a transmission unit (transmission unit) 18 as functional components.

  The storage device 12 stores a database 12a. As shown in FIG. 2, the database 12a stores the identification information of each base station 20 connected to the earthquake warning device 10 and the position information of the location of each base station 20 in association with each other. .

  The input unit 14 is a part that receives input information including the epicenter position and magnitude from the earthquake detection device 30.

  The base station selection unit 16 is a part that extracts from the storage device 12 base station identification information of the base station 20 located in the predicted earthquake location estimated from the epicenter location and magnitude included in the input information received by the input unit 14. is there. More specifically, the predicted disaster area is estimated from the epicenter position and magnitude of the input information, and the base station identification information of the base station 20 located in the estimated disaster predicted area is extracted from the storage device 12. This disaster prediction area is specified by latitude / longitude or specified by area name (prefecture name, city name, etc.). In addition, as a method for estimating the predicted disaster area, for example, there is a method for estimating an area that is surrounded by a circle with a predetermined radius corresponding to the magnitude of the magnitude centered on the epicenter position as the predicted disaster area. And the base station selection part 16 collates the positional information on each base station 20, and a disaster prediction area, and extracts the base station identification information linked | related with the positional information contained in a disaster prediction area.

  The transmission unit 18 transmits a base station warning instruction having earthquake information including the epicenter position and magnitude to the base station 20 specified by the base station identification information extracted by the base station selection unit 16. This base station warning instruction is instruction information for distributing a terminal warning instruction to be described later to the base station 20 that has received this instruction.

  Next, each base station 20 constituting the earthquake warning system 1 will be described.

  Each base station 20 is a base station that transmits and receives various kinds of information such as voice information and character information by wireless communication with the mobile terminal 40, and includes a receiving unit (receiving unit) 22 and a power control unit ( Power supply control means) 24 and an alarm distribution unit (alarm distribution means) 26.

  The receiving unit 22 is a part that receives the base station warning instruction transmitted from the transmitting unit 18 of the earthquake warning device 10.

  The power control unit 24 is a part that distributes a forced incoming call instruction to each mobile terminal 40 existing in its own communication area by the MBMS method. Here, the forcible incoming instruction is instruction information for forcibly turning on the power of each mobile terminal 40, and the mobile terminal 40 that has received this information is turned on. The MBMS (Multimedia Broadcast / Multicast Service) system is a push-type distribution system that simultaneously transmits information of the same content to a plurality of specific or unspecified terminals.

  The alarm distribution unit 26 is a part that distributes the terminal alarm instruction and the earthquake information received by the receiving unit 22 to each mobile terminal 40 existing in its own communication area using the MBMS method. Here, the terminal alarm instruction is instruction information for causing the mobile terminal 40 to execute an alarm process, for example, information for instructing the mobile terminal 40 to sound an alarm sound or displaying earthquake information on the display of the mobile terminal. Information or the like.

  Next, a procedure from when the earthquake warning system 1 receives input information from the earthquake detection device 30 to when a terminal warning instruction is sent to the mobile terminal 40 will be described with reference to the flowchart of FIG.

  First, input information including the epicenter position and magnitude estimated by the earthquake detection device 30 is received by the input unit 14 of the earthquake warning device 10 of the earthquake warning system 1 (S10). When the input information is received by the input unit 14, the predicted disaster area is estimated by the base station selection unit 16 (S12). Further, the base station selection unit 16 identifies the base station 20 included in the estimated disaster prediction area from the position information of each base station 20 stored in the storage device 12, and the base station identification information of the base station 20 is Extracted (S14). When the base station identification information is extracted by the base station selection unit 16, a base station warning instruction is transmitted from the transmission unit 18 to the base station 20 specified by the base station identification information (S16).

  When the receiving unit 22 of the base station 20 of the earthquake warning system 1 receives the base station warning instruction (S18), the forced incoming instruction is distributed from the power supply control unit 24 to each mobile terminal 40 in the communication area. Thus, the power of each mobile terminal is turned on (S20). Thereafter, the alarm distribution unit 26 distributes a terminal alarm instruction to each mobile terminal 40 in the communication area (S22). When the mobile terminal 40 receives this terminal warning instruction, the mobile terminal 40 executes a predetermined warning process and notifies the user of the occurrence of an earthquake.

  As described above, in the earthquake warning system 1, the telephone of the mobile terminal 40 located in the base station 20 located in the disaster-predicted area during the series of steps until the mobile terminal 40 executes the warning process. The step of detecting the number (contact information) is not included. Therefore, alarm transmission can be performed more quickly than the conventional earthquake alarm system. Therefore, the user of the mobile terminal 40 that has received the earthquake information can deal with the earthquake with more margin than before, and human damage and building damage due to the earthquake are significantly reduced. In addition, since the base station 20 broadcasts to the mobile terminal 40 using the MBMS method, even if the mobile terminal 40 is in a mode in which no radio wave is transmitted, the base station 20 notifies the mobile terminal 40 of the terminal alarm. You can send instructions. Therefore, it is possible to reliably send a terminal warning instruction to the mobile terminal 40 that is in an area where transmission is prohibited and is in a mode in which no radio wave is transmitted.

  Further, the earthquake information is delivered from the base station 20 to the mobile terminal 40 together with the terminal alarm instruction, so that the user of the mobile terminal is notified not only of the occurrence of the earthquake but also detailed information about the earthquake from the mobile terminal 40. Therefore, it is possible to deal with an earthquake more accurately. Further, since the base station selection unit 16 estimates the predicted disaster area based on the position information of the base station 20 stored in the storage device 12, it is not necessary to predict the predicted disaster area in advance, and any earthquake Can be flexibly dealt with.

  Moreover, in the earthquake warning system 1, since the forced incoming call instruction is delivered to the mobile terminal 40 by MBMS prior to the delivery of the terminal warning instruction to the mobile terminal 40, it is not possible to make a call to the mobile terminal or mail delivery. It is possible to immediately notify when the power is turned off.

  Next, the aspect in which the earthquake warning system 1 has the database 12b different from the database 12a mentioned above is demonstrated, referring FIG.

  As shown in FIG. 4, in the database 12b, base station identification information is grouped for each predicted disaster area estimated from the location of the epicenter and the magnitude. Specifically, in the database 12b, the magnitude range, the epicenter location range, and a plurality of base station identification information are associated with each other for each group. That is, in the database 12b, the base station identification information is grouped for each predicted disaster area estimated from the epicenter location range and the magnitude range.

  For example, in Group A-1, the magnitude (M) is in the range of 7 or more, and the north end latitude of the epicenter location is 38 ° 40 ', the south end latitude is 38 ° 00', the east end longitude is 136 °, and the west end longitude is 135 °. And the 500 base station identification information indicated by the base stations A1 to A500 are associated with each other.

  A group having a larger magnitude (M) includes more base station identification information. For example, group A-1 in which 7 ≦ M has 500 base station identification information (base station A1 to base station A500). The group A-2 that includes 5 ≦ M <7 includes 100 base station identification information (base station A1 to base station A100) out of the 500 identification information.

  When the storage device 12 stores such a database 12b, the base station selection unit 16 compares the epicenter position and magnitude received by the input unit 14 with the magnitude range and the epicenter position range of the database 12b, and matches the groups. , And base station identification information included in the group is extracted. Then, the transmission unit 18 transmits a base station warning instruction to the base station 20 specified by the plurality of base station identification information extracted by the base station selection unit 16.

  In this way, when the database 12b in which the base station identification information is grouped for each predicted disaster area estimated from the location and magnitude of the earthquake is stored in the storage device 12, a plurality of bases in the predicted disaster area are stored. Since the base station identification information of the station 20 can be extracted in a short time, the alarm can be transmitted more quickly than in the case where the base station identification information is extracted one by one.

  This grouping may be classified for each exchange that controls a plurality of base stations 20, and in that case, information can be distributed in a larger area unit.

  In the above-described example, the aspect in which the predicted disaster area is specified by the latitude / longitude is shown, but the predicted disaster area can also be specified by the area name. That is, in the database 12a, the identification information of each base station 20 and the location name of the base station 20 are stored in association with each other, and the base station selection unit 16 estimates the disaster prediction area by the area name, Similarly to the above, the base station identification information of the base station 20 included in the predicted disaster area estimated by the base station selection unit 16 can be extracted.

  Next, an aspect will be described in which the earthquake detection device 30 estimates the damage prediction area from the detected characteristics of the P wave, and the earthquake warning system 1 receives input information including the damage prediction area from the earthquake detection device 30. .

  In this aspect, the input unit 14 is a part that receives input information including a predicted disaster area from the earthquake detection device 30. The base station selection unit 16 is a part that extracts, from the storage device 12, base station identification information of the base station 20 located in the predicted disaster area of the input information received by the input unit 14.

  Next, in this aspect, the procedure from when the earthquake warning system 1 receives input information from the earthquake detection device 30 until the terminal warning instruction is sent to the mobile terminal 40 is described with reference to the flowchart of FIG. explain.

  First, input information including the predicted damage area estimated by the earthquake detection device 30 is received by the input unit 14 of the earthquake warning device 10 of the earthquake warning system 1 (S30). When the input information is received by the input unit 14, the base station selection unit 16 specifies the base station 20 included in the predicted disaster area of the input information from the position information of each base station 20 stored in the storage device 12, The base station identification information of the base station 20 is extracted (S32). When the base station identification information is extracted by the base station selection unit 16, a base station warning instruction is transmitted from the transmission unit 18 to the base station 20 specified by the base station identification information (S34).

  When the receiving unit 22 of the base station 20 of the earthquake warning system 1 receives a base station warning instruction (S36), a forced incoming call instruction is distributed from the power supply control unit 24 to each mobile terminal 40 in the communication area. Thus, the power of each mobile terminal is turned on (S38). Thereafter, the alarm distribution unit 26 distributes a terminal alarm instruction to each mobile terminal 40 in the communication area (S40). When the mobile terminal 40 receives this terminal warning instruction, the mobile terminal 40 executes a predetermined warning process and notifies the user of the occurrence of an earthquake.

  As described above, in the earthquake warning system 1 in this aspect, the base station selection unit 16 extracts predetermined base station identification information in a short time without estimating the disaster prediction area, so that a quicker warning is performed. Can communicate.

  In addition, when the input information includes a plurality of predicted disaster areas each associated with the seismic intensity, the base station selection unit 16 selects a damage greater than a predetermined seismic intensity from the plurality of predicted earthquake areas included in the input information. Extract the expected area. More specifically, for example, the base station selection unit 16 extracts one or a plurality of disaster prediction areas having a seismic intensity of 4 or more from the input information, and stores the base station identification information of the base stations 20 included in the extracted disaster prediction area Extract from device 12. In this case, the versatility of the earthquake warning system 1 is improved by appropriately changing the seismic intensity used by the base station selection unit 16 to select the predicted disaster area.

  The present invention is not limited to the above embodiment, and various modifications are possible. For example, the storage device is not limited to an aspect in which the storage device is integrated with the earthquake detection device, but may be a separate body from the earthquake alarm device. The base station warning instruction sent from the earthquake warning device to the base station may be a base station warning instruction not including the epicenter position and magnitude, or a base station warning instruction including any one of the hypocenter position and magnitude. Furthermore, the distribution method used when the alarm distribution unit of the base station distributes the terminal alarm instruction to the mobile terminal is not limited to the MBMS method, and may be appropriately changed to another known distribution method.

It is the figure which showed the structure of the earthquake warning system which concerns on embodiment of this invention. It is the figure which showed the data structure of the database stored in the storage device of FIG. It is the flowchart which showed the procedure which delivers an earthquake warning by the earthquake warning system of FIG. It is the figure which showed the data structure of the database of the aspect different from the database stored in the storage apparatus of FIG. It is the flowchart which showed the aspect from which the procedure which distributes an earthquake warning differs.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Earthquake warning system, 10 ... Earthquake warning device, 12 ... Storage device, 14 ... Input part, 16 ... Base station selection part, 18 ... Transmission part, 20 ... Base station, 22 ... Reception part, 24 ... Power supply control part, 26 ... alarm distribution unit, 30 ... earthquake detection device, 40 ... mobile terminal.

Claims (3)

An earthquake warning device, a plurality of base stations communicably connected to the earthquake warning device, and a storage device in which base station identification information of each base station is stored,
The earthquake warning device is
An input means for receiving input information including at least one of the location and scale of the earthquake and the predicted damage area;
Base station selection means for extracting predetermined base station identification information from the storage device based on the input information received by the input means;
Transmitting means for transmitting the base station warning instruction to the base station specified by the base station identification information extracted by the base station selection means;
Each of the base stations
Receiving means for receiving the base station warning instruction transmitted from the earthquake warning device;
When the receiving unit receives the base station alarm indication to the mobile terminals present in its communication area, it has a an alarm distribution means for distributing the terminal alarm instruction to execute the alarm processing to the mobile terminal,
When the input information includes the epicenter location and the earthquake magnitude,
In the storage device, the base station identification information is stored in a grouped state for each predicted disaster area estimated from the location of the epicenter and the magnitude of the earthquake,
The base station selection means determines a predetermined group of the base station identification information based on the epicenter location and the magnitude of the earthquake included in the input information, and the base station identification included in the determined group An earthquake warning system for extracting information from the storage device . Each base station provides power control for distributing a forced incoming call instruction to the mobile terminal to forcibly turn on the power of the mobile terminal before the alarm distribution means distributes the terminal alarm instruction to the mobile terminal. The earthquake warning system according to claim 1, further comprising means. The transmission means of the earthquake warning device transmits the base station warning instruction having earthquake information including at least one of the epicenter position and the earthquake scale received by the input means to the base station,
When the receiving means receives the base station warning instruction having the earthquake information, the alarm distribution means of the base station provides the terminal with the terminal warning instruction to the mobile terminal existing in its communication area. The earthquake warning system according to claim 1 or 2 , which distributes information.

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